SeaMap2000 Video Review Work Instruction

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Survey Operations

SeaMap2000 Video Review Work Instruction

GR-SRV-476

Prepared by: T Glancy Reporting Manager

Approved by: PJ Jansen Chief Surveyor

1.0 Issue for Use Jan.17.02

Ver. Reason for Issue Issue Date Prepared by Approved by


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Acergy Survey Operations Jan.17.02

GR-SRV-476 Ver. 1.0 SeaMap2000 Video Review Work Instruction Page 2 of 24

This is an electronically generated document, which has been reviewed and approved in accordance with the

Acergy Management System. An audit trail of review and approval is available within the electronic system. Thescreen version of this document is the CONTROLLED COPY at all times. When printed it is considered a FORINFORMATION ONLY copy, and it is the holders responsibility that he / she holds the latest valid version. , Acergy

or a subsidiary thereof, Copyright 2006 and design right reserved. Copying and/or disclosure of the confidentialinformation contained herein is prohibited without written permission of the proprietor.

TABLE OF CONTENTS

1. SCOPE.................................................................................................................4

2. OBJECTIVE..........................................................................................................4

3. REFERENCES.......................................................................................................4

4. DEFINITIONS......................................................................................................5

5. RESPONSIBILITIES.............................................................................................5

6. PROCEDURES......................................................................................................6

6.1 INTRODUCTION............................................................................................66.2 STARTING SEAMAP2000 AND VIDEO EVENT EDITOR........................................6

6.2.1 LOGIN & PASSWORD.........................................................................6

6.2.2 START SEAMAP2000..........................................................................6

6.2.3 SELECT DATABASE............................................................................66.2.4 START EVENT EDITOR........................................................................6

6.3 PREPARATION FOR VIDEO REVIEW.................................................................76.3.1 START VIDEO CONTROL.....................................................................7

6.3.2 START VIDEO REVIEW & EVENT QC LOG............................................76.3.3 TEST VIDEO CONTROL.......................................................................7

6.3.4 CHECK TIME CODE............................................................................7

6.3.5 START FASTPAD................................................................................7

6.3.6 CREATE EVENT CODES LIST IN FASTPAD.............................................86.3.7 MOVING AND RE-SIZING WINDOWS....................................................8

6.3.8 CHECK POSITION FILE START/END TIMES............................................86.3.9 INSERT FIRST EVENT RECORD (& MANUALLY ENTER TIME)....................8

6.3.10 CHANGE DATE.................................................................................8

6.3.11 MANUALLY SELECT EVENT CODE (DESCRIPTION)................................9

6.3.12 ENTER VIDEO TAPE NUMBER ............................................................96.3.13 SAVE EVENT FILE (FILE NAME FORMAT).............................................9

6.3.14 OPEN EVENT FILE............................................................................96.3.15 CONFIGURE EVENT TABLE COLUMNS (MANUALLY)..............................9

6.3.16 SAVE AND LOAD EVENT TABLE COLUMN CONFIGURATIONS...............10

6.3.17 EVENT TABLE COLUMN WIDTHS......................................................10

6.3.18 CHECK VIDEO TAPE HEADER...........................................................10

6.3.19 SYNCHRONISE VIDEO TAPE TIMES..................................................10

6.4 USING EVENT EDITOR FOR VIDEO REVIEW...................................................116.4.1 OTHER SOURCES OF INFORMATION...................................................11

6.4.2 VIDEO CONTROL SEARCH FUNCTION.................................................11

6.4.3 TAPE SPEED DURING REVIEW...........................................................11

6.4.4 EVENTING METHODOLOGY...............................................................11

6.4.5 INSERT EVENT RECORDS WITH FASTPAD...........................................12

6.4.6 ADD ADDITIONAL EVENT DETAILS.....................................................126.4.7 DETAIL FUNCTION...........................................................................12

6.4.8 MOVING AROUND THE EVENTS TABLE...............................................126.4.9 EVENT STATUS COLUMN...................................................................13

6.4.10 CHANGE EVENT RECORD STATUS USING VIEW MODE.......................13

6.4.11 EVENTING DESCENDING KP SURVEYS..............................................13

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6.4.12 FREESPAN CLASSIFICATION ...........................................................13

6.4.13 FREESPAN HEIGHTS.......................................................................146.4.14 SAVE EVENT FILES REGULARLY.......................................................14

6.4.15 AUTOMATIC UPDATE OF FJ NUMBER (AS-LAID INSPECTIONS ONLY)....14

6.5 VIDEO EVENTS PROCESSING & PRELIMINARY QC..........................................156.5.1 FINISH VIDEO REVIEW.....................................................................15

6.5.2 MERGE EVENTS WITH POSITION FILE................................................156.5.3 CHECK CONTINUITY OF PAIRED EVENTS BEFORE JOINING...................16

6.5.4 SEARCH TAPE FOR AN EVENT............................................................16

6.5.5 JOIN PAIRED EVENTS AUTOMATICALLY..............................................17

6.5.6 BREAK JOINS IN SELECTED RECORDS...............................................18

6.5.7 JOIN PAIRED EVENTS MANUALLY.......................................................18

6.5.8 CHECK ANODE (OR FJ) SPACING.......................................................19

6.5.9 MAKE A PRINTOUT OF ANODE (OR FJ) SPACING..................................206.5.10 CHECK COMMENTS.........................................................................20

6.5.11 CHECK FOR MISSING FIELDS..........................................................20

6.5.12 CHECK FREESPANS........................................................................20

6.5.13 PRINT AN EVENTS FILE...................................................................21

6.5.14 EXITING EVENT EDITOR AND SEAMAP, THEN LOGGING OUT..............21

ATTACHMENT 1 - VIDEO CONTROL PROBLEMS.....................................................22

ATTACHMENT 2 - TIME CODE READING PROBLEMS..............................................23

ATTACHMENT 3 - SYNCHRONISING VIDEOS.........................................................24

ATTACHMENT 4 - TO COPY FILES FROM ONE DATABASE TO ANOTHER.................25



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1. SCOPE

This procedure gives a detailed description of the use of SeaMap2000 to generatepipeline 'event' files with the aid of Stolt's SeaMap2000 package.The scope of this procedure does not include a description other functions withinSeaMap2000. This information is available in another AcergySurvey procedure:GR-SRV-466 SeaMap2000 Data Processing Work Instruction

2. OBJECTIVE

The objective of this document is to provide detailed procedures on the use of

SeaMap2000 software to create event files from review of pipeline inspection videos.The document is organised so that the subjects covered follow a logical order throughthe process of video review. This will allow trainee video reviewers to use this documentin conjunction with the Video Training Tape (reference ???). This document may also beused as a reference manual. The Appendices contain routines and methods for solving

problems that may be encountered with hardware and software by inexperienced users.

3. REFERENCES

The entire list of AcergySurvey Operating Practices is given in Appendix A.



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4. DEFINITIONS

ASCII - American Standard Code for Information Interchange

CAD - Computer Aided Design

CTD - Conductivity, Temperature & Depth

CP - Cathodic Protection

DCC - Distance Cross Course

DGPS - Differential Global Positioning System

DP - Dynamic PositioningDTM - Digital Terrain Model

DVL - Doppler Velocity Log

DXF - Digital eXchange FormatIDC - Internal Distribution CopyGPS - Global Positioning SystemHiPAP - High Precision Acoustic Positioning

HPGL - Hewlett Packard Graphics LanguageHPR - Acoustic Positioning ReferenceKP - Kilometre Post

MBE - MultiBeam Echosounder

MRU - Motion Reference Unit

MSL - Mean Sea Level

OAS - Obstacle Avoidance Sonar

PCP - Plot Configuration Parameter

QC - Quality Control

ROV - Remotely Operated Vehicle

SCU - Surface Control Unit

SF - Survey Format (A Simrad proprietary data format)

SIT - Silicon Intensified Tube

SSBL - Super Short Base Line

STD/SD - Standard Deviation

UTM - Universal Transverse Mercator

5. RESPONSIBILITIES

The Reporting Manager is responsible for compiling this document.

The Chief Surveyor is responsible for approval and distribution of this document.



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6. PROCEDURES

6.1 INTRODUCTION

NOTE: Text in italics indicates typed input, text in Bold indicates menu text on screenat which to point and click or keys to press (click refers to left mouse button unlessstated otherwise).

6.2 STARTING SEAMAP2000 AND VIDEO EVENT EDITOR.

6.2.1 Login & Password

Login as Geo1 orGeo2 depending on which X-terminal video suite you are using (look

for yellow label on top right of screen) and click on OK or press Enter. (Note: pressEnter can often be used instead of click on OK, but to keep things brief only click onOKwill be referred to). When prompted for password just click on OK. The HP CDE(Windows) for Unix will then load.

6.2.2 Start SeaMap2000

If an hpterm window is not already open then open one (select from pull up menu abovecomputer icon on toolbar at bottom of screen), put mouse pointer in window (canttype in any window without doing this) and typeseamap& and pressEnter.

6.2.3 Select Database

You should then see a SeaMap2000 Initialising start up message followed a fewseconds later by the Select a Job menu. This lists all the jobs (databases) on the system.Select whatever database you wish to work on by clicking on the relevant database, andthen click OK.

6.2.4 Start Event Editor

When the SeaMap2000 Main Menu appears select Alpha Editing (click on iconbelow text) then click on Event Table in menu that appears. Event Editor window thenappear.



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6.3 PREPARATION FOR VIDEO REVIEW6.3.1 Start Video Control

Click on Video (top right of Event Editor window), to get to Video Control window. Ifthe message cannot talk to the video m/c appears, clickOKand try again. (If problems

persist with getting Video Control window refer to Video Control Problems, Appendix1).

6.3.2 Start Video Review & Event QC Log

Start a Video Review & Event QC Log for the tape to be reviewed. This records thevideo tape details and the various processing steps and QC checks carried out on theevents file. Complete the first few items on the log, checking the video tape label details

are OK (Tape Number, Title, KP limits) and they agree with the Video Tape Log madeby the ROV observer (should be in one of the tape boxes). The Dive No. is shown on theROV Video Tape Log.

6.3.3 Test Video Control

Put the tapes in the VCRs ensuring first that that the record tags are in the protectposition. Now you can check that the Video Control is working by clicking on play(same button annotation as VCRs) - the play icon should go green and all 3 VCRsshould start. If not, then the programme may have frozen and will probably crash withina few seconds. If this happens you must restart the Event Editor programme.

6.3.4 Check Time Code

If the Video Control works OK, then check that the time displayed on the centre videomonitor overlay agrees with the time shown in the window labelled Current in the VideoControl window (to the left of the video control buttons). This is to check that the timecode recorded on the tape is being read correctly by SeaMap2000 from the master VCR(usually centre camera tape). If it does not agree, carry out the checks/actions detailed inAppendix 2. If it is OK, then stop the videos and rewind back to start. Note that the OK

button on the Video Control window closes it.6.3.5 Start Fastpad

Next click on the Fastpad (next to Video) to get Video Insert Fastpad window. Checkthat there is a green square next to From Video at bottom of this window (if Fast pad isopened after the Video Control then it should be green). If it is grey then click on it to

turn it on (green). Note that the OK button on the Fastpad window closes it.



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6.3.6 Create Event Codes List In FastpadYou now need to create a list of event codes in Fastpad suitable for the type of surveyyou are eventing. Ideally a Fastpad file of codes will have been saved from earlier work.To check this: Click on File, click on Open, look at listing of files for relevant Fastpadfile (usually suffixed _fpad or _fastpad), click on required file and click OK (or justdouble click on required file). If no Fastpad file is available then use the Add button toopen the Primary Event Codes menu from which you can build up events in Fastpad.

Note: by selecting an event in the Fastpad list with a single click you can use theup/down arrows in the window to change its position.

6.3.7 Moving And Re-Sizing Windows

Any window can be moved around screen by clicking and dragging the top (header) of

its frame. By clicking and dragging a corner or edge of the frame you can change the sizeof most windows (Video Control and some menu windows cannot be resized). To makea window active (bring it to the front) just click on the frame and keep the cursor withinit.

6.3.8 Check Position File Start/End Times

Prior to starting the video review you need to check the processed position file (oftenreferred to as nav file) for the video tape to get the final start and end times. These areused as the times for the Video Tape Start and End events in the event file so that theseevents have a position when merged with the nav file. Go to the Alpha Editing box inthe SeaMap2000 Main Menu and click on the Position Table, open File, double click on

relevant nav file for the video tape (will have same number as video tape). You then notedown the time and KP of the start/end of the position file data on the QC Log. If the navfile is not ready then just use an approximate start time for now.

6.3.9 Insert First Event Record (& Manually Enter Time)

Now use Insert at the bottom of the Event Edit window to create the first event recordin the event file. Click on the Time box and enter the nav file start time (or if notavailable your approximate start time) in the format hhmmss. E.g. enter time 013025 andthe time 01:30:25.0 will appear (the colons appear automatically). If Insert is used togenerate another event record this will have the same time as the record above.

6.3.10 Change Date

To enter the date of the survey: Double click on the Date field to highlight default date,

enter new date in the format dd-mm-yyyy ordd.mm.yyyy (notyy as year00 will generatethe year 2100 in the final date). E.g. enter06-03-2000, click on another box and the datewill change to the format 6-Mar-2000. Each subsequent event record generated will havethis same date irrespective of the event time. So the date does not automaticallyincrement when the event time goes through midnight (i.e. from 23:59:59 to 00:00:00).Remember to do this change manually when necessary.



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6.3.11 Manually Select Event Code (Description)

To enter the event code, which is Video Tape - Start of, double click (or right click) onthe Description box to open the Primary Code Selection menu. Widen this window, asthe default width is too narrow to see the Sub buttons that select the sub-code menus.Scroll down to find Video Tape and click on Sub, click on Start of, then OK.

6.3.12 Enter Video Tape Number

The Video Tape Number may be entered in the Comments column. Click on Commentsfield and type in number e.g.D047-CS-P56-F-VN-0097.

6.3.13 Save Event File (File Name Format)

At this point the events table needs to be saved in order to give it a file name. Click onFile and select Save As. Type file name into Destination box (use the same file namingformat as the position file e.g. Video Tape No. D047-CS-P56-F-VN-0097 would be file

p56_097). Ensure that the Status box says Working, not Approved. Then click on OKand the file is saved.

6.3.14 Open Event File

Now you need to open this saved file to make it the active table (at the moment the eventtable on screen is still the unsaved version). Click on File and select Open. From theLoad File menu select the required file from the list shown and click on OK (or justdouble click on file). The file should load (overwriting the previous un-named version).

Notice that the file name is now shown in the header of the Event Editor window and

that the Video Tape - Start ofevent description is now light green rather than grey.6.3.15 Configure Event Table Columns (Manually)

The Event Editor table consists of 37 columns but only 10 or 12 can be displayed in thewidth of the monitor. So to save scrolling left and right to find the right column you canconfigure the columns so only the ones you want are displayed. Click on Styles (at topof Event Editor window) then click on Configure Columns. The Configure Columnsmenu shown allows you to select (highlight) a column (or columns) and shift its positionup or down as required. Also columns can be switched on or off by clicking on the greensquare next to each column. (Note that Time, Date and Description must always bedisplayed or Event Editor will not work). A typical column layout for Statoil annual

pipeline inspection would be Time, Date, KP, Evt Gap, Depth, Comment, Side, Length,

Height, Width, Size, Clkstart, and Clkend. Once a selection is made, click on OK toclose the Column Selection menu and OK to close the Styles menu. The new columnconfiguration will be shown.



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6.3.16 Save And Load Event Table Column ConfigurationsNew column configurations can be saved as a file (suffix .ecc). Click on Save, doubleclick on the directory name ending with /columns and then type in a file name and clickon OK. Several existing configuration files can usually be found by clicking on Load,double click on the directory name ending with /columns, then double click on aconfiguration file (ann.ecc is for annual inspection, aslaid.ecc is for as-laid inspectionetc). To finish loading the configuration, click on OK to close Column Selection menuand OKto close Styles menu.

6.3.17 Event Table Column Widths

Column widths can also be adjusted by clicking and dragging the lines between thecolumns. However, the widths cant be saved and have to be adjusted manually every

time the column configuration is changed as they change back to the default widths.6.3.18 Check Video Tape Header

Now start videos and check the Video tape header details recorded at the star of all 3tapes. These should match the ROV Video Tape Log. Note any errors on the QC Sheet.

6.3.19 Synchronise Video Tape Times

After header pause (if any), you need to synchronise tapes so that the overlay times onthe VCR monitors are the same and the view in each camera is of the same part of the

pipeline. Use one of the methods listed in Appendix 3. It is often useful to use anodesand Field Joints to continually check the relative position of each camera view. TheVCRs will gradually drift slightly out of sync as you review the tapes so you need to

keep an eye on the overlay times and re-sync the tapes as required.



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6.4 USING EVENT EDITOR FOR VIDEO REVIEW.The Video Training Tape is the best introduction to the process of video review but thissection gives some general guidance on methods and the use of functions within EventEditor. The sequence roughly follows the order in which you will encounter or need eachfunction.

6.4.1 Other Sources Of Information

Have the previous years inspection report for the pipeline to hand (if available) togetherwith a plot of the SpotScan trace (if used) to aid video review. Also if the cross-profilefile for the tape is available (even in raw form) then this can be opened in the XP-Edit

programme to allow cross checking of freespans (especially heights) and burials duringvideo review (see separate guide on use of XP-Edit for Video Review - to be written)

6.4.2 Video Control Search Function

The only Video Control function that is not similar to that on the VCRs is the forwardand reverse search function. The slider below the main row of buttons controls thisfunction. This actually works in steps from 0 (freeze frame) through 5 (1 x normal play)and on up to 8 (8 x normal play). Move the slider by clicking and dragging it (clickingonce to one or other side of the slider moves it by one step). This is used more thannormal and reverse play to control the tape speed during review.

6.4.3 Tape Speed During Review

Tape speed used during review is determined by a combination of survey speed, visibility

and number/type of events. With slower survey speeds (0.7m/s), good visibility and or

few/simple events then a tape speed of 6 (fwd search x2) can reliably be used. At highersurvey speeds, areas of poorer visibility and/or areas of numerous or complex eventsthen tape speed generally has to be kept at 5 (normal play) most of the time.

6.4.4 Eventing Methodology

To insert an event record the videos are paused at the event. This is in order to maintainconsistent positioning of events relative to cameras (and hence consistent timing relativeto ROV navigation reference point, which is the SpotsScan beam or, when SpotScan isnot used, the Bathymetry unit). In general this is taken as being the point when the event

just goes out of camera view. Take a look at the ROV when on deck (ask ROVSupervisor for a guided tour) to get an idea of the relative positions of all the sensors and

how they relate to the fields of view of the cameras. Where an event has a length of morethan 1m it should be evented at its low KP end or if it is an event that crosses the pipe, atits crossing point. (If you have problems check with Senior Surveyor or other Geos forguidance on this).



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6.4.5 Insert Event Records With Fastpad

To insert the event record in the Events Table double click on the event in the Fastpadlist. This inserts time (from video tape time code), date (copies date from previousrecord) and the event code (called Description in Event Editor). Additional event codescan be added to the Fastpad file and saved as required. However, there is a practicallimit of about 15 Fastpad events that can be easily viewed. So rare/infrequent eventcodes are generally recorded using the Insert Event function in the Video Controlwindow. This inserts time from time code and copies the date but the event code has to

be selected manually.6.4.6 Add Additional Event Details

Most of the additional event record information required by the client spec (dimensions,clock position, offset, comments etc) is typed directly into various columns in the table.However, Side of pipe is selected from a menu brought up by double clicking (or rightclicking) on this field in the table. Also CP values are entered in a separate windowopened by double clicking (or right clicking) on this field in the table. The Video TapeStart and End events should have the Video Tape Number entered in the Commentsfield. Comments should be generally be kept to a minimum and be consistent. Try not torepeat information already given in the Description (Event Code).

6.4.7 Detail Function

The Detail function can also be used to bring up the Pipe Sheet Edit window containing

all the data for the event record on which the cursor is lying. Information can also beentered here but it is slower than typing into the table. There have also been problems inthe past with data not updating in the main table after closing this window so it isgenerally not used.

6.4.8 Moving Around The Events Table

You can move the cursor (active field or cell) from one event record to another using thekeyboard up & down arrows but the left & right arrows will not move from column tocolumn. Generally, however, it is easier to use a mouse click to move the cursor fromfield to field. If the Event Table window is too small to display all the records and/orcolumns then an up and down and/or right to left scroll bar will appear on the far rightand bottom of the window respectively. Click and drag these scroll bars to move the

display around the table. You can also move the display up and down using the Page Upand Page Down keys. Note that none of these display movements affect the actual cursor

position.



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6.4.9 Event Status Column

The column on the right hand side of the Events Table headed S shows the status of theevent record using the following colour code:Grey: Deselected (Record will not be included in any processing functions such

as Merge pos. Depth etc but will be saved if you use Save As orSave).Pink: Selected (Record will be included in all processing functions. Function

Save Selected As can be used to extract just selected records to anotherfile).

Brown: Deleted (Record will not be included in any processing functions and willnot be saved to file).

Light Blue: Fixed and Selected (Used to fix event record position data KP, E, N,Depth, DCC etc. This will be not be changed by any processing functions

but some functions which do not affect this data will work e.g. Join Pairs).Dark Blue: Fixed and Deselected (Effectively the same as Not Selected).There is also

one other colour you might occasionally see in the status column:Yellow: Corrupted Record (If you see this, then there is a problem with that

record within the database It is best to insert a new record to replace thecorrupted one. Then Select all records and Save Selected As to save thefile without the corrupted record.

6.4.10 Change Event Record Status Using View Mode

To change the status of one record click on View Mode function and select the status

required from the menu. Then click on that records status field to change it. To changeseveral adjacent records click and drag the cursor down the status column past therequired records. To change all the records in the table click on the S in the statuscolumn header. Note that to change the status ofDeleted orFixed records you have touse Undelete orUnfix from View Mode menu first.

6.4.11 Eventing Descending Kp Surveys

On descending KP surveys the starts and ends of paired events are evented in reverse (asare clock positions). This can lead to some mistakes but these are usually picked upwhen trying to pair events.

6.4.12 Freespan Classification

Often a Client will propose a span classification (for example, Statoil's definition ofclear/continuous/intermittent spans). Freespans may be classified as they are evented.This sounds complex but a Client span classification, once learnt, is reasonably practicalto deal with during the review process. Freespan events can also be merged with the

position file and the pairs joined during review to help define span or support lengths.



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6.4.13 Freespan Heights

Freespan heights of less than 0.4 to 0.5m are generally estimated visually relative to thepipe diameter. Heights greater than this are usually determined/checked from cross-profiles. It is better to leave a height out and put note in comments to check cross-profiles during QC than to enter an incorrect height.

6.4.14 Save Event Files Regularly

Event files should be saved every 15 - 20 minutes to avoid significant work loss ifprogramme crashes. Get in the habit of using Save As rather than Save. This is becauseSave As asks you to confirm the filename you are saving to if it already exists, and itgives you the option to cancel before doing it. In some cases this can prevent overwriting

of the wrong file.6.4.15 Automatic Update Of FJ Number (As-Laid Inspections Only)

As-Laid inspection performed immediately after the pipe has been laid requires theeventing of all Field Joints. These all have a sequential number written on the pipe that isincluded in the event record. This may be typed manually into the Table but as there may

be several hundred the following method allows the numbers in batches or to the wholefile:

First ensure that only Field Joints are selected. Do this as follows:

Click on Deselect option underView Mode menu, then deselect all events (click on

S in status column heading)

Click on Styles, then Codes to View and then Deselect All Select Field Joints and click on OK then OKagain. Only Field Joints will now be

listed.

Click on Select option underView Mode menu, then Select all Field Joints (click on

S in status column heading)

Now put cursor on the FJ column of the first record.

Click on Functions, then Update Values to open Update Values window

UnderChange Field click on Description to open menu of column headings and

select FJ.

In the Replace with box enter the correct FJ number for the cell highlighted at the

start of the event table. In the Increment By box type 1 or -1 for ascending KP or descending KP surveys

respectively and click on OK.

The FJ field in the table should fill with ascending or descending Field Joint numbers.

Check the last FJ number against tape. If incorrect, check for missing Field Joint

events.

If numbers agrees then Save As.



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6.5 VIDEO EVENTS PROCESSING & PRELIMINARY QC6.5.1 Finish Video Review

After reaching the end time of the position file, a Video Tape End of event code isinserted to finish the event file (dont forget video tape number in comments). All eventsare then selected and the file is saved.

6.5.2 Merge Events With Position File

The events file is now ready to be merged with the position file. The position file isbasically a record of the ROV position in grid co-ordinates (Easting and Northing)logged against time during the inspection. The merging process interpolates a grid co-ordinate from the position file for each event based on its time. This process also

calculates a KP position along the pipeline together with a lateral offset (Distance CrossCourse or DCC) from the KP database position (reference position) of the pipeline.Merging is done as follows:

Click on Functions, click on Merge Pos, Depth etc to open Merge Data window,

Click on right hand button () opposite Merge Position to open Merge from file

window.

Select relevant position file and clickOKto return to Merge Data window.

Square to left of Merge Position will be green and position file name will be in

window.

Click on OKto start merge process. Then wait.

If your event times and dates are all within the position file limits and all events areselected then you should get a message: x values were selected and processed

y values have completed positions

Click on OKto clear this message.

If y is less than x then either there are time or date values in the event file outside

the position file limits or not all event records are selected. Note that if there aredeleted record still showing in the table then this is probably the cause. To check, justsave the event file and re-open it to remove them. Then re-merge with position file tosee if all events now have a completed position.

If all events have a position then Save As and tick off item 3 on the Video Review &

Events QC Log.



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6.5.3 Check Continuity Of Paired Events Before JoiningPaired events (i.e. those with Start and End Sub-codes in their descriptions and colouredlight green and pink respectively) need to be joined in order to calculated their lengths.However, before that, it is best to check the continuity of paired events (i.e. all startshave ends). With only a few pairs, scrolling through the whole event file is the easiestway to check them. If theres a significant number of paired events then it is easier toselect each event pair code and check them separately. This is done as follows:

Click on Styles and then on Codes to View to open a menu of all Primary Event

Codes.

These should all be highlighted (i.e. all codes selected for viewing).

Click on Deselect All and all codes will be deselected from list.

Click on the first paired event code to be checked e.g. Freespan Continuous and then

OK.

Click on OK in Styles menu to view only Freespan Continuous events.

Scroll through the selected event pairs to check for pair mismatches (incorrect

sequence) or missing starts/ends.

If an error or errors are found, note down the times they occur and carry on checking

the other paired events

With a list of all pairing errors you can now check through the video tape to resolve

them.

Before doing this, make sure all codes are selected in Codes to View. See next

section (6.5.4) on how to search tape for an event.6.5.4 Search Tape For An Event

If the time code on all 3 tapes is OK then the Wind Tape to Data function in the VideoControl can be used to search for a particular event.

Click on event record

Click on Wind Tape to Data and tapes will fast forward (or rewind) to the event

time.Note that if there are time gaps in the tape (due to tape pauses) then the search mayovershoot (time is interpolated from the starting position when in fast forward or rewind)

but the search will restart each after an overshoot until the correct time is found. If you

know there are time gaps you can speed the process up by: Stopping the tape after the time gap

Pressing play to run tape for a few seconds to reset the Current time

Clicking on Wind Tape to Data again to restart the search.

To just search for a particular time, the Goto function can be used (below Current timewindow).

Double click on Goto time window to highlight present entry

Press Delete key to remove last entry

Type in time required (including colons) and press Enter key.

The tapes will then fast forward (or rewind) to that time.

If one of the tapes has no time code then the above methods can still be used but thatVCR will not synchronise properly with the other two. It may fast forward or rewind but



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it may not stop when the others do and if it does it will probably be at a different time.You just have to adjust the problem VCR to the required time manually (see Appendix3, a or b).

6.5.5 Join Paired Events Automatically

To join paired events automatically (i.e. all pairs in table):If there is an End event at the start of the event file or a Start event at the end (i.e. theother half of the pair is on the previous or next tape). Then these events need to bedeselected before applying the Automatic Pair Join function as they can cause errors.

Click on Functions to open menu

Click on Automatic Pair Join and turn offPreserve Existing Joins option, click

OK.

If there is still a problem with missing starts or ends then an error message will

appear Cannot find Matching Pair for.. with options to Continue or Abort.Note the type of event pair affected but dont bother to write down the rest of theerror message, as its actually not much help in finding the error! Just click on Abort.

If it is a descending KP survey then the message KPs are the wrong way round

will appear with options to Continue orAbort click on Continue.

If is an ascending KP survey and you get the message about KPs being the wrong

way round, then there is an event pair (or pairs) with the start and end reversed. Inthis case click on Abort.

If there are no other problems all pairs should join correctly. This is indicated by and

all paired starts/ends turning dark green and red respectively and all pairs having alength dimension.

Scroll down the table to check that the paired lengths look realistic (i.e. no freespans

hundreds of meters long!). If all looks OK then Save As and tick off item 4 on theVideo Review & Events QC Log and continue with next preliminary QC check.

If the are some suspect paired lengths it is probably due to incorrectly joined pairs. In

this case refer to next Section (6.5.6).



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6.5.6 Break Joins In Selected RecordsIf any of the problems listed have occurred whilst trying to join pairs automatically, youwill need to Break Joins in Selected Records before searching for the error so that noincorrect joins are preserved. (Even if Abort was used some pairs may have been joinedincorrectly):

Click on Functions

Click on Break Joins in Selected Records

Make sure the two options shown (Copy length, height & width to start of join

and Copy length, height & width to end of join) are not selected (both squaresgrey) then click on OK

All joined pairs will now be broken (i.e. starts/ends will be light green and pink andall paired lengths will have been deleted).

Repeat continuity checks on paired events to find errors before trying to join pairs

again.6.5.7 Join Paired Events Manually

In some cases it is useful to be able to join (or break) single event pairs. This is ofparticular use in trying to establish which start event will pair with which end event. Thisis done as follows:

Click on Functions

Click on Manual Pair Join to open this window. Move it to one side so you can

also see the Events Table.

Move cursor in Events Table to the start or end event of the pair to be joined.

Details of each half of the pair will be shown in the window together with the KP

distance between them.

If the pair details are correct, then click on Make Join to join them.

If the cursor is placed on either half of a joined pair then their details will be shown

The Join can be broken by clicking on the same button which will now read Break

Join.

To exit the Manual Pair Join window ALWAYS click on OK. NEVER click on

Cancel as this can cause errors in the database.



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6.5.8 Check Anode (Or FJ) SpacingTo use this for Field Joints just read Anode as Field Joint (anywhere this doesnt apply isindicated).

Click on Styles, then Codes to View

Click on Deselect All from menu

Select just Anodes from list and click on OK to close Codes to View menu

Click on OK to close Styles menu and just Anode events should be displayed in the

Events Table

To calculate gap in meters between anodes click on Functions

Click on Calculate Event Gaps, then ensure the option to Preserve Existing Values is

not selected (i.e. box to left is grey not green) before clicking on OK In the Evt Gap column of the Table the distance from each anode to the previous one

is shown. Note that the first anode will have an erroneous gap value (there being noprevious event to compare it with).

Check the column for any values twice (or more) the typical anode gap which would

indicate missing anodes (but be aware that some pipelines have more complexpatterns of anode spacing such as 2 joints/4 joints/2 joints etc).

To eliminate if some gaps may be due to buried anodes, click on Styles and Codes to

View again and select Burial in addition to Anodes.

Now any Burial pairs will also be shown in the Events Table and if any of the Anode

gaps coincide they can be ignored. Any remaining missing Anodes require investigation by searching the tape. If found,

event and select them and then re-merge with position file before saving events file.

If some of the Anode gaps appear rather irregular it is probably worth searching the

tape for some of the most irregularly spaced ones to check their event times.

If these times are OK, then the irregular spacing is probably due to poor position

(nav) data.

Make a note about erratic anode spacing in Comments section of Video Review &

Event QC Log so Senior Surveyor is aware.

Then tick off item 5 on Video Review & Event QC Log.



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6.5.9 Make A Printout Of Anode (Or FJ) SpacingThe SeaMap2000 QC programme can be used to carry out QC checks on different typesof data, including Events. It was used by Video Reviewers to check anode and FJspacing, but using the Calculate Event Gap method (see above) was found to be quicker.The QC programme can be used to produce a print out of anode or FJ spacing asfollows:

Click on QC (blue icon) in SeaMap2000 Main Menu.

Click on Events to open QC menu.

Click on Source Table and select the current file you are working on, click on OK.

Click on box to left ofMin/Max Separation (will turn green)

Click on Parameters to right of Min/Max Separation, opens Code selectionwindow

Click on Add.

Select the event code you require, Anode etc.

Click on OK.

Click on box underMin Gap, type in 1, do the same for box underMax Gap.

Click on OKto return to QC window.

Click icon to the right ofDestination at bottom of window to select Printer output.

Click on Apply to print.

Click on Exit when done.

6.5.10 Check Comments

Event comments should be checked for errors, brevity and consistency. Any notesinserted as reminders to do things (e.g. check freespan height on cross-profiles) should

be deleted once they have been done. Then tick off item 6 on Video Review & Event QCLog.

6.5.11 Check For Missing Fields

Each event type should be selected using Codes to View and checked for missing fields(dimensions, side of pipe, offset, clock positions etc) and correct as necessary.

6.5.12 Check Freespans

For Statoil inspections select freespans types using Codes to View and check for the

following and correct as necessary:

No spans


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6.5.13 Print An Events File Make sure that all events are selected.

Click on File and then Print Selected Records to open Alpha Report- from Event

Edit window.

Click on button to r. hand side of Format Name and select

ARLEvents_listing_AllW from list of formats (Alpha Report Layout files) shown.Click on OK. (If this format is not present in the list see Appendix 4 on how to copyfiles from one database to another).

Output type should be Postscript (default)

Click on box to left ofPrinter to select (should go green).

Click on Page Layout to get Page Format window: Click on button to r. hand side of Page Header, put mouse pointer in window and

type the Event File name, Status (Not QCd or QCd) and Date (e.g. p56_099W, NotQCd, 09/04/00). Click on OK. Remaining page settings should be as follows:

Page Orientation = Landscape,Outside Frame = on, heavy line,Horizontal and Vertical Grid = both on, thin line,Top Margin = 1 (if using a long header set to 1.1 to allow for hole punch)Bottom Margin = 0.5Left/Right Margin = 0.5

Click on OKto return to Alpha Report menu

Use the Sort By function to select an ascending KP listing (even if it was a

descending KP survey).

Then click on Apply to execute the print out (OKdoes not always work)

If print out is appears all right use Cancel to exit the menu.

6.5.14 Exiting Event Editor And SeaMap, Then Logging Out

To exit the Event Editor programme, do it in the following order:

Fastpad click on OK,

Video Control click on OK,

Event Editor click on File then on Exit.

Doing it this way will sometimes prevent problems opening up the Video Control thenext time. To exit SeaMap:

Click on Exit on SeaMap2000 Main Menu

Click on Exit on SeaMap2000 Select a Job Menu then press Enter key to bring up

prompt in hpterm window to show SeaMap2000 has shut down,

To logout:

Click on Exit icon in the middle of tool bar at the bottom of the screen.

Click on Continue logout option in the window that appears. Now Logout is

complete.



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ATTACHMENT 1 - VIDEO CONTROL PROBLEMS.

TO BE CHECKED WITH SOFTWARE DEPT.

If no video control available, i.e. it will not give you the control panel window, or if the

control panel window comes up but will not operate the video suite and the hpterm listingindicates that someone else has video control, try the following:

1. Exit out of everything, leaving only the hpterm window.

2. get the prompt in hpterm, press enter.

3. Ekofisk> typecd /tmp ( = space) then press Enter.

4. Ekofisk> type ll(2 x lower case letter L) then press Enter.

5. Look at listing for cause of problem, i.e. whoever it says is using video control. It is nownecessary to remove the relevant lock file. This may be done either in the File Manager oras follows:

6. > type rm7. highlight relevant line by holding down left mouse button video_ xxxxxxxx etc,

8. click middle mouse button then press Enter.

9. At prompt y/n, type yand press Enter

7. At Sleipner> prompt, continue as if for normal SeaMap2000 start up, i.e. type seamap&

etc

If it still fails to work we have had success with:

1. Turn off video recorders.

2. Exit back to SeaMap2000 Main Menu, then turn off the xterm.

3. Turn on the Xterm.

4. Videos back on.

5. Start up as normal.



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ATTACHMENT 2 - TIME CODE READING PROBLEMS.

If time code not being read by SeaMap2000 try the following checks/actions:

a) Check all VCRs are set for Time Code, not Audio, on Audio channel 2. TCor TIMECODE should be displayed on all the VCRs to the left of the tape counter window. If

not, find the Screen Display and Down buttons below the tape counter and pressthem together so a menu appears on the monitor. Scroll down the menu using the

Down button until AUDIO CH2 AUDIO is flashing, then press the Data button to

change this to AUDIO CH2 TIME CODE. Press Screen Display button to close

menu and TC or TIME CODE should now be displayed on VCR. Check if SeaMap2000 is

now reading time code. If not try b).b) Check that a time code has been recorded on all tapes. Under the screw in panel oneach VCR, check that the far left hand switch CH2 Meter is set to Audio, if the Time

Code has been recorded OK you will get a good steady reading of about 0 on the right

hand meter. If OK try d), if not OK try c).

c) Sometimes the time code is not recorded properly on one of the tapes but is OK on the

others. Try the port tape in the master VCR if time code is now OK, put centre tape

in port VCR and swap the port and centre monitor leads around. If not OK try thestarboard tape in master VCR etc. If still not OK, try d).

d) If all 3 tapes appear to have a time code but SeaMap2000 is still not reading it may be

a software problem. Try shutting down Event Editor (click on File and select Exit) and

restarting it. If this does not work try e).

e) Switch the X-terminal off and then on again to reboot it. After 2 or 3 minutes the Login

screen will appear and you can start SeaMap2000 again. If this still does not workinform the Survey Tech!

In the case of time code failure on all three tapes then times have to be evented manually

from the video overlay (fortunately this is very rare!).

Note: Both video review suites (Geo1 and Geo2) on Seaway Commander are currently setup with camera 1 (usually centre), at bottom of rack, as the master, and camera 2

(starboard) and camera 3 (port) at top as slaves. SeaMap2000 is set up to read time codefrom camera 1 (centre).



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ATTACHMENT 3 - SYNCHRONISING VIDEOS

Use one of the following methods to synchronise the videos:

a) With the tapes in play, press pause and then manually adjust the port and starboardVCRs to the same overlay time as the centre (master) VCR by pressing the Search

button on the VCR and using the Jog/Shuttle dial. (You cant adjust the master VCR tothe other two as the other two will also move!).

b) Click on Cameras on the Video Control (right hand side) to open menu and click on the

dashed line at the top. This turns that menu into the Camera Tear-offwindow (which

you can leave displayed). By clicking on each camera in turn the Video Control will only

operate that VCR. So the VCRs can be synchronised in the same way as a) above butusing the Video Control instead of the VCR controls. Camera 1 is the master (usuallycentre) camera, Camera 2 is usually Starboard and Camera 3 is Port. Dont forget to

select All cameras once the times are in sync.

c) Use the Wind Tape to Data function on the Video Control to synch tapes to the Video

Tape - Start ofevent (this may not work if the time code on one or more of the tapes

is not working). This often works best by running a few seconds past the event time

and then selecting Wind Tape to Data to back up the tapes to that event time.d) Use the SyncVideo Machines function this does not always work very well.



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ATTACHMENT 4 - TO COPY FILES FROM ONE DATABASE TOANOTHER.

For example, when wishing to print out events you find that you do not have

ARLEvents_listing_AllW in the Format Name, you will need to copy this from another

database.

a) Assuming your present database (Job) is job9750B:b) Click on Utilities in SeaMap2000 Main Menu,

c) Click on File Manager,

d) Click on top left hand Job box, Select Job 666 (for example),

e) Click on All Tables,f) Select Alpha Report layout, **

g) Click on Events Listing All,h) Click on Functions,

i) Click on Copy to Job 9750B, get prompt, check details then click OK,j) Then select Job 9750B in top left hand Job box to check that file has copied OK.

k) Then Click on Exit to close File Manager.

** The same procedure holds for copying event files etc, just select Event Observationsand continue from Functions onwards. This is useful if an events file has been saved in

the wrong database.

Documents

SeaMap2000 Video Review Work Instruction