Wood Group ODL Dimensional Control

www.woodgroupodl.com

Dimensional Control Survey Team

“Zero Failures to Fit”

Presented by

Stewart Buchanan Global Head of Sales & Marketing

2 www.woodgroupodl.com

What are Dimensional Control Surveys?


Dimensional control surveying is the technique and science whereby 3-dimensional spaces are

accurately measured to determine the area between points, creating digitally mapped distances

and angles.

Dimensional control can be defined as the process of acquiring extremely accurate dimensional

documentation that is spatially referenced to a known or established benchmark. Using the

latest survey technology, Surveyors can measure and produce 3d Cad models from single pipe

spool replacements to full FPSO/Jacket construction surveys.

The captured data can be transformed to a clients preferred format, offering quick and easy

data evaluation and problem checking. As we offer a full draughting service, we can provide full

3D models using Micro-station, 2D drawings or Point Cloud data from our Laser Scanners.

What are Dimensional Control Surveys?


Your Challenges- Lack of knowledge of installation, clear visibility, little or no accurate data

The Benefits - Preventing failures to fit, clash free installations, client owned reusable data,

asset integrity, familiarisation, HSE, accurate repairs, upgrades and maintenance etc.

Reduce Costs – cost effective, multi use data, such as construction planning, reduce “hot-

work”, increase in safety, reduce on site material handling, “Zero failures to fit”. Reduce the

number of offshore visits

Dimensional Control can meet these challenges and help ensure "clash-free" design and

installation of projects involving piping, structural and equipment that must integrate and “fit first

time”.

Fabric & Maintenance, HSE, Familiarisation & Induction, Training, Emergency Response

Why use Dimensional Control Surveys?


Who are we?

• Global Leaders in Dimensional Control

• Providing High-Quality, Cutting Edge Surveys to Suit Every Client's Unique

Requirements

• Zero Failures to Fit


Introduction

Wood Group ODL Dimensional Control Surveys provide cost effective dimensional control

services to the Oil & Gas Industry:

A Global team of experienced surveyors – using proven technology

Considerable experience of surveying offshore platforms and onshore installations for the oil

and gas industry

Precision survey data to fabricate items that fit when installed, without clashes


Why are we the best choice?

• Access to surveyors by BG project teams

• Ease of sharing data

• Communication and responsiveness

• Leading technologies on the market

• Highly qualified team of surveyors

• Output customized to customer needs


How do we capture the data?

Laser scanner – uses

controlled steering of laser

beams followed by a

distance measurement at

every pointing direction, to

capture the shape of

objects, buildings and

landscapes. Captures large

amount of spatial data in

short period of time.

Total station – a theodolite

integrated with an

electronic distance meter to

read distances from the

instrument to a particular

point with the highest

accuracy. Used for small,

high accuracy tasks (e.g.

tie point surveys)

Camera with a fisheye lens

on a panoramic bracket –

used to capture a complete

panoramic view from each

scan position. The image

can be integrated with laser

scans. Used to produce

highest quality Truviews.


What do we offer?

• Clear, high-resolution pictures of as-built

installations

• Accurate measurements to plan and design tie-

ins

• Visualization of potential clashes

• Re-usable surveys

• Flexibility to change scope

• Truview panoramas, available for everyone as

freeware

• Integration with PDMS, AutoCAD, Microstation

and Navisworks


Complete installations surveys

A laser scanner can produce 3D point cloud models that can be used for multiple purposes:

• New design planning

• Clash detection

• Tie point information

• Decommissioning


Whole-life Asset Support

Government Negotiations Seismic Assessment Exploration / Appraisal Drilling Development Project Operation (Production) Downstream Decommissioning Relinquish License

LogisticsProduction FacilitiesDrillingWells / Drilling ManagementReservoir and Production

Development Project Operations Maintenance Modifications Downstream Decommissioning

Operating Profit

Development Costs

Brownfield Activity

Wood Group PSN Core Services

Supporting your asset throughout its life – from fabrication to decommissioning


Our Services include

Laser

scanning

Total

Station

surveys

Redline mark-ups of

isometric drawingsPlant Design Management System

(PDMS) compatible coloured point

clouds

TruViews

(freeware that enables 3D

colour images to be viewed

and shared over the

internet)

Clash

checking

CAD

Modelling

Navisworks ready

data


Why Wood Group ODL?

The Wood Group ODL approach adds value to our clients:

• Experienced and Competent team (Fully qualified surveyors, whether single or two man projects)

• Good Track Record/Customer Satisfaction

• Growing team to meet client needs, increase availability and reduce response time

• Internal structured training and development programme

• Continual upgrade of software and techniques

• Wide range of tailored survey types • (from total station measurement of single spools to full colour laser scans)

• Multitude of Applications • (walk through, design, asset integrity, site training, briefings before mobilisation etc.)

• Dual benefit - Photos taken when scanning can also be used to produce high-resolution 360 degree panoramas, adding value and eliminating duplication of efforts, and the use of two providers!

• Level of Design Accuracy (1-2mm)

• No failure to fit

• Competitive pricing


Innovation and Development of New Services

• Close links with industry:

• Test latest technology

• Only adopt if it provides additional benefits

• Manage scan data from all sources

• Enable project team, ops, construction etc to

have access to most recent scan data

• Asset management

• Use scan data as portal for:• Maintenance information

• Asset integrity

• Web-based to allow widespread access

• Condition monitoring

• Respond to customer requirements


Laser Scanning and It’s Benefits

• Scanning is used to measure surfaces and record spatial relationships

• Requires line of sight, but you can perform and combine multiple scans to record subjects

more fully

• Laser Scanners create three dimensional point clouds representing an object’s surface,

automatically, systematically and at high speed


• 3D measurements of distances and volumes

• Clash detection

• Design visualisations

Manipulation of the Point Cloud


What level of detail can we capture? What accuracy?


How do we do that?


Design visualization


Project example: Lifeboats Replacement

• Client looking to procure new, larger lifeboats

• Davits surveyed offshore

• Lifeboat surveyed onshore

• Survey data overlaid and checked for clashes

• Proposed lifeboat is too large – client now able to look

for an alternative solution


Repair Order – Red line Mark ups/New Isometrics


SULLOM VOE MEOR HS2 MODS PROJECT

Topographical Surveys


Truview Example


Truview: access to scans for everyone

Truview is a panoramic view of the scene, which can be used by anyone who has Internet

Explorer. A plugin which enables this functionality is available for free. No extra software or training

is required in order to view the data.


Truview: access to scans for everyone

The image is enhanced so that basic measurements can be taken directly on the screen:


How do we work?

The scheme below shows the usual workflow of a typical project:

Survey

request

from Client

Surveyor

allocated to

job

Surveyor

discusses

requirement

s with Client

Finalise scope

of work,

survey method

and

deliverables

Prepare kit

for air freight

or despatch

by boat

Mobilise.

Complete site

inductions and

obtain permit

to work

Perform the

survey

Return to

office,

process data

Final scans,

models and

drawings

delivered to

Client


Any Questions?


Proposed Dimensional Control Pilot Survey

• Proposed Pilot – what are your challenges? We will pilot the survey to give the best

results to address the current issues you have. We would suggest consideration is given

to any new equipment installation, such as, skids, pumps, pipes etc.

• Duration- we would suggest 2 weeks on the facility

• Team – this would be a two man team on site working 12 hour shifts

• Outputs - we will produce a full colour 3D virtual model of the facility, TruViews and

drawings/redline mark-ups.


Contacts

Stewart Buchanan: Wood Group ODL

+44 07738 405529

[email protected]

Michael Sakr: Autochim Systems

971 2 6265774

[email protected]


List of Survey Equipment Required

The following equipment will be required for the duration of this survey,

and will be shipped to the platform prior to the survey. Upon completion

of the offshore survey the equipment will be returned to the ODL office

in Aberdeen:


To be hand-carried by surveyors:

• Dell Precision Laptop

• Olympus TG1 camera

• Tape measure & steel rule

• PPE bag


Clarifications

1) What is the accuracy of the scanned model?

Laser scanning is normally undertaken within 10m of the equipment being scanned, and for such close-range scans dimensional

accuracy is 1mm.

2) What info you need from client before scanning team goes to site? Is it drawings, P&IDs and what else?

As a minimum we require isometric drawings, plot plans and GA drawings. If site photographs are available they are useful to plan the

positions for each scan and are useful for site familiarisation before mobilising.

3) Time taken to complete site job for a medium size plant (150 equipment, structures, racks and around 4000 lines).

To provide an accurate response we would need to know the size, layout, and complexity of the plant, but, depending on the scope, it is

likely to require 2 surveyors for anything from 1 week to 1 month.

4) What equipment is required for “Laser Scanning”?

For this job, 2 full sets of survey equipment will be required. See Attachment 1.

5) Is this equipment safe to use? Can people work during “Laser Scanning” in the plant?

People can work in the plant, provided they do not come between the scanner and the area being scanned. The area being scanned will

be barriered-off as part of the team’s standard working practices, to ensure scanning data is not lost due to people walking in front of the

scanner as it is taking measurements.

The specific safety measures for the laser survey equipment we use are as follows:


Clarifications

LASER SAFETY – HDS6200:

The HDS6200 laser scanner has the following laser classification:

o Laser Class 3R

For Class 3R laser products direct intrabeam viewing should be considered as hazardous, and direct eye exposure is to be avoided.

Note that the risk of injury is limited significantly for the HDS6200 as follows:

o Unintentional exposure would rarely reflect worst case conditions of beam alignment with the pupil,

o There is an inherent safety margin in the maximum permissible exposure to laser radiation,

o The natural aversion behaviour for exposure to bright light in the case of visible radiation

o Wearing safety glasses to provide complete protection from the laser beam

All laser surveys are conducted under a permit-to-work, with the area being surveyed barriered-off to prevent personnel from walking in

front of the laser beams.

o The equipment is not intrinsically safe and a gas monitor is required to be carried at all times.

o Batteries are not to be changed in a hazardous environment.


LASER SAFETY – TOTAL STATIONS:

The TS11 and TCRP1201+ total stations both have the following laser classifications:o Laser Class 1 for measurements with reflectors

o Laser Class 3R for measurements without reflectors

o Laser Class 2 for plummet (laser beam points directly at ground level)

Class 1 laser products are not harmful to the eyes provided they are used in accordance with the manufacturer’s instructions.

For Class 3R laser products direct intrabeam viewing should be considered as hazardous, and direct eye exposure is to be avoided.

Note that the risk of injury is limited signkificantly for either model of Total Station, as follows:o Unintentional exposure would rarely reflect worst case conditions of beam alignment with the pupil,

o There is an inherent safety margin in the maximum permissible exposure to laser radiation,

o The natural aversion behaviour for exposure to bright light in the case of visible radiation

o Wearing safety glasses to provide complete protection from the laser beam

Class 2 laser products are safe for momentary exposures, but can be hazardous for deliberate staring into the beam. The beam is not to

be pointed at others.

All surveys are conducted under a permit-to-work, with the area being surveyed barriered-off to prevent personnel from walking in front

of the laser beams.o The equipment is not intrinsically safe and a gas monitor is required to be carried at all times.

o Batteries are not to be changed in a hazardous environment.


6) Is this equipment approved from Security authorities in UAE?

Yes

7) How much manpower (Number of personnel at site) is required to complete scanning of a medium size plant?

surveyors should be sufficient

8) How do you transform a simple model (scan from site) into an intelligent model; whereby lines have numbers; valves, inline items and

equipment have tags; parameters associated with lines and equipment can be read such as temperatures, pressures, materials and all

sort of info.

This is not common practice for the team, but can be delivered via a partner company.

9) To make the basic/simple model smart, what inputs from client are needed?

P and IDs are sufficient.

10) Is special software needed to see this model? Can this model be migrated to SP3D? Can this model be part of existing SP3D model?

The Cyclone or LFM software that we use to deliver point-cloud databases are both compatible with Smart Plant.

11) If not then do client need other software to edit the model?

What about all the 3D model benefits such as walkthroughs, searching for one line or inline item, measuring distance, seeing sections,

creating layouts, generating isos, bill of materials, list of valves, list of lines with some specific parameters (such as area numbers,

material class, service, size etc.)

Walkthroughs, searching for items and measuring distance can be undertaken using the free Internet Explorer plug-in provided by Leica

Geosystems called TruView.

The databases will be supplied in either Cyclone or LFM format to suit your existing preference and either of these software formats can

be used to measure distances accurately, producing sections of the model, and generating isometric drawings.

The bill of materials, list of valves, and list of lines with specific parameters will require a program such as SP3D.

12) Are high capacity machines needed to view the scanned models?

TruViews can be viewed on standard machines that can access Internet Explorer. High specification CAD machines with 16GB or more

of RAM, and suitable graphics cards are required for viewing and accessing point cloud databases.

Engineering

Wood Group ODL Dimensional Control