LEAP 600B System 2

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    Table of Contents

    LEAP-600B Logging Platform ..1

    LEAP-600B Heavy-Duty Truck.....4

    Downhole Tools Diagram......5

    LEAP Express Platform....6

    Telemetry and Gamma-Ray Tool (TGR).....7

    Temperature Tension Resistivity Tool (TTR)..8

    Nuclear Electric Cartridge (NEC).........9

    Resistivity Electric Cartridge (REC) ........9

    Spectro-Gamma Ray Sonde (SGS)...10Compensated NeutronSonde (CNS).....12Hydraulic Pad-mounted Device (HAS)...14

    Combined Logging Probe of LDS/MFS..15

    MFS- Micro-Spherically Focused Logging........17

    Dual Laterolog Sonde(DLS)..........................................................19

    Dual Induction Logging Sonde (DIS).......21

    High Resolution Acoustic Sonde(HRAS) ...23

    Borehole Directional Sonde (BDS) ....25

    Digital Hydraulic X-Y Caliper(XYC) 26

    Flexible Joint Sub (FJS) .......................................................26

    Digital Long Spacing Acoustic (DLSA)......27

    Borehole Compensated Array Sonic (BCAS) .....28

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    Digital High Resolution Dip LogDHRD...28

    Pipe Conveyance Log (PCL) .....30

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    1

    LEAP-600B Logging System

    Measurement Integrity and Data Quality

    The LEAP-600B design is based on this fundamental concept quality in, quality out. Since

    measurement integrity is the critical first step in reservoir characterization, the LEAP-600B system

    incorporates advances in digital data acquisition and visualization technologies to ensure that you

    receive prominent data:

    Full recording of all instrument data from raw tool signals to fully processed curves

    Optimized instrument operation in combination tool strings through multiple sampling rates for

    sensors

    Quality control through visual confirmation of all calibration values, verification values, and

    measurement tolerances

    Real-time quality control of spectral and acoustic services through information displays for raw

    and processed data Real-time environmental corrections

    Advanced Technology Services

    The LEAP-600B system is an advanced data acquisition platform designed to give you the full

    benefits of the new-generation downhole instrument. The system outputs both color and

    gray-scale plots, and easily incorporates client-defined presentation formats. The LEAP-600B

    acquisition system can support all the downhole tools developed by CNLC as well as the tools

    from cooperated companies*.The LEAP-600B system offers great flexibility in data handling,

    processing, and communications:

    Multiple RISC-based CPUs operating at 76 MIPS each

    Ability to handle new-generation data-intensive services and multiple service combinations

    Direct print log plotting at speeds of up to 4 in./sec for gray-scale or up to 5 in./sec for color

    plots

    Raw data recording allows the application of future advances in data- processing techniques

    to the original raw data

    X.25 data communications

    Full data communications with built-in security to and from client office locations, geoscience

    centers, or other LEAP-600B units

    High-definition color monitors for log viewing and data processing utilizing the X-WindowSystem"Motif"' graphic user interface

    Removable electronic storage media using industry standard formats:

    3'/2-in. floppy disk drive

    1.3 Gbyte digital audio tape (DAT)

    9-track tape

    CD-R

    *The LEAP-600B acquisition system supports all CNLCs down-hole tools and the tools produced by other

    companies such as HLB, SLB, and Sondex. Down-hole tools and software such as XRMI, WSTT, CAST,

    SFT\SFTT produced by other companies are all compatible with the LEAP-600B system.

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    2

    Safety for personnel, protection for Data and Equipment

    The LEAP-600B system is designed to protect people, equipment, and the data being recorded.

    Safety features incorporated into the LEAP-600B system include:

    Non-circulatory well exposure minimized through reduced operating time

    Well data preserved in case of an emergency shutdown through a certified uninterruptible

    power supply (UPS) system

    Ballistic operations safety and efficiency improved through a built-in wellhead potential

    monitor

    Ballistically safe wireless communication system between the units and operators on the rig

    floor

    Data security during communication through automatic data encryption

    Real-Time Data Processing Platform

    The LEAP-600B supplies a field version log analysis sofrware package. The field engineer andour client have the ability to process the logging data in real-time at the well site.

    Data pre-processing: This is the basic system of the analysis software package; it includes depth

    match, environments correction, and other data preparation functions.

    Data processing:

    This is the main part of the software, It includes Complex reservoir analysis, Sandstone analysis,

    Stratagon structural Diplog analysis, MRIL logging data analysis, Acoustic waveform analysis,

    Pressure transient analysis, Production logging data analysis

    Data Communication

    CNLC offers data communication services from the well sites to our Geoscience Centers or client

    premises throughout the world, thus facilitating the decision processes associated with oil and gas

    exploration and development. If desired, digital data and graphics may be transmitted

    simultaneous with other logging operations. Our communications software packages include

    compression techniques to reduce transmission time and provide the needed security for system

    integrity. The systems can efficiently transport information across traditional dialup (PTT)

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    3

    networks, public or private wireless networks including cellular, and a variety of satellite

    applications including INMARSAT. Client needs for reliable, secure and unattended data transport

    is supported with a wide array of packages. Dial-upoptions include X, Y, and Z Modem, BLAST

    and JFT or other open protocols such as X.25. Network and dial access allows interaction with the

    World Wide Web on the Internet and has options encompassing solutions that are tailored forWide Area Network(s) (WAN).

    Operational Efficiency

    The computer technology of the LEAP-600B system, including its multitasking capability, ensures

    improved data acquisition and processing:

    Multitasking CPUs allow multiple simultaneous operations, including logging, verification, logging

    preparation, and data transmission

    Improved job flow through easy-to-understand operator interfaces

    Flexible playback and change of presentation parameters at the well site, without disrupting job

    flow, through the use of multitasking CPUs

    System design utilizing high-reliability components, supplemented with card-level diagnostics and

    replacement, and CPU redundancy

    Verification/calibration of a surface tool string while the current logging string is tripping in/out of

    the well

    Simultaneous calibration of multiple instruments in the same string

    Wireline Telemetry System improvements allow more instrument combinations and faster

    logging speeds

    Ability to scroll up and down the log during acquisition

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    4

    LEAP-600B Heavy-Duty Truck

    The Heavy-Duty Truck is a full-sized

    and full-service logging unit. The unit

    is designed to operate in virtually

    any oilfield-type environment, such

    as tropical, desert, or arctic. The

    logging cabin is designed to house a

    full LEAP-600B acquisition system

    while still providing ample working

    and seating room. The unit is built

    on a 6x4 or 6x6 chassis.

    Benefits and Features

    Designed for use in variousenvironments .Can be fully winterized for arctic conditions

    Set back front axle to optimize weight distribution and meet DOT regulations when fully loaded

    Includes three air conditioners that do not use CFC-12 refrigerant Self-contained for remote

    operations.

    Hydraulic system powered by main truck engine. Both hoist and generator hydraulically powered.

    Storage provided on unit to carry necessary logging tools, R/A sources, and supplies.

    Sleeper cab provided. Specially designed tool racks using air bags to cushion instruments while

    driving. Air ride rear suspension. Heavy-duty frame and suspension.

    Full-service capabilit ies

    Contains four full-size instrument racks for the acquisition system

    Wired to accept either the LEAP-600 or other acquisition systems

    Safe to operate

    Contains a Wellhead Potential Meter and RF detector for increased perforating safety

    Full drum guards to cover moving parts

    Drip pan mounted under drum

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    5

    Downhole Tools Diagram

    TTR

    TCT

    FJSGRS or SGS

    CNS

    NEC

    HASLDS-MFS

    REC

    DIS

    HRAS

    BDS

    OTTOM NOSE

    BRIDLE

    NEC

    REC

    HRAS

    TTR

    TCT

    GRS or SGS

    CNS

    LDS-MFS

    DLS

    BDS

    FJS

    HAS

    TTR:TEMPERATURE TENSION AND RESISTIVITY GRS:GAMMA LOGGING SONDE

    SGS:SPSCTRO-GR SONDE NEC:NECLEAR ELECTRIC CARTRIDGE

    CNS:COMPENSATED NEUTRON SONDE REC: RESISTIVITY ELECTRIC CARTRIDGE

    LDS-MFS:DENSIT