Table of Contents. LEAP-600B Logging Platform..1. LEAP-600B Heavy-Duty Truck...4. Downhole Tools Diagram...5. LEAP Express Platform...

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2 Table of Contents LEAP-600B Logging Platform..1 LEAP-600B Heavy-Duty Truck Downhole Tools Diagram LEAP Express Platform....6 Telemetry and Gamma-Ray Tool (TGR) Temperature Tension Resistivity Tool (TTR).. 8 Nuclear Electric Cartridge (NEC) Resistivity Electric Cartridge (REC) Spectro-Gamma Ray Sonde (SGS)...10 Compensated NeutronSonde (CNS) Hydraulic Pad-mounted Device (HAS) Combined Logging Probe of LDS/MFS..15 MFS- Micro-Spherically Focused Logging Dual Laterolog Sonde(DLS)...19 Dual Induction Logging Sonde (DIS) High Resolution Acoustic Sonde(HRAS)...23 Borehole Directional Sonde (BDS) Digital Hydraulic X-Y Caliper(XYC) 26 Flexible Joint Sub (FJS)...26 Digital Long Spacing Acoustic (DLSA) Borehole Compensated Array Sonic (BCAS)

3 Digital High Resolution Dip Log(DHRD)...28 Pipe Conveyance Log (PCL)

4 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-Window System"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 CNLC s 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. 1

5 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 and our 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) 2

6 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-up options 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 for Wide 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 3

7 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 various environments.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 capabilities 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 4

8 Downhole Tools Diagram BRIDLE TTR TTR TCT TCT FJS GRS or SGS FJS GRS or SGS CNS CNS NEC NEC HAS LDS-MFS HAS LDS-MFS BDS BDS REC REC DLS HRAS HRAS DIS BOTTOM NOSE 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: DENSITY&MSFL SONDE DLS: DUAL LATEROLOG SONDE BDS: BOREHOLE DIRECTIONAL SONDE DIS: DUAL INDUCTION SONDE HRAS: HIGH RESOLUTION ACOUSTIC SONDE FJS: FLEXIBLE JOINT SUB 5

9 Quad-Combo Express Platform LEAP-600B Express Platform toolstring provides all the conventional logs which are: - Resistivity : Dual Laterolog or Dual Induction Log; MSFL - Porosity: Neutron Porosity and Sonic Porosity - Formation Lithology and Density - Hole Deviation and Azimuth - Hole Caliper, Mud Resistivity and Temperature - SP Systematic Specifications of LEAP-600B-Series Tools Pressure rating 100 or 140MPa Temperature rating -25 ~ +150 (or175 ) Deposit temperature -40 (no longer than 12h.) Shock rating 50g/100g 11ms 3-axises Vibration rating 5g/7.5g 10 ~ 60 Hz 3-axises Max. hole size 21.5 in Logging speed 550m/hr Max. OD of the string 4.5 in Total length of the string 21.6m or 24.5m (no Flexible Joint Sub) Total weight of the string 752Kg (spectro-gr), 740Kg (GR) Cable-head Voltage 250VAC±10%,50 ~ 60Hz 6

10 Telemetry and Gamma-Ray Tool (TGR) The TGR is the combination of the telemetry tool and natural Gamma-Ray measurement. In conjunction with a telemetry module, a standardized interface between the surface acquisition system and digital down hole tools, digital data is transmitted both upward and downward at 100 kilobits per second in bursts of data called FRAMES. Natural GR sensor has been merged in to reduce the total tool numbers and length. Nature Gamma Ray Log The Natural Gamma Ray Log is the measurement of the total Gamma Ray in the formation. In conjunction with NEC, the probe can be combined with other LEAP-Series tools for depth correction. Applications of the GR Logs: 1. Formation profile delineation 2. Clay content determination 3 Well-to-well correlation 4 Depth correlation service Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 88mm(3 3/8in) 1629mm(5ft) 42kg(93Lbs) Borehole Conditions Min Hole 4.5in Max Hole 20in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: for depth correlation: 10m/min 20m/min Tool Position Centralized Decentralized Measurement Principle: Range Vertical Resolution Depth of investigation Gamma Ray 0~2000API N/A 300mm(11.8in) Measurement Repeatability(At 80API reading, time constant 2S ): ±6% 7

11 Temperature Tension Resistivity Tool (TTR) The TTR is a mechanical and electrical tool that measures the pull on cable head, the mud resistivity and mud temperature. The logs are used for the enhancement of log analysis and logging quality/safety control. It is a digital tool. Main Applications: 1. Gas entries detection in air drilled well 2. Location of lost circulation zones 3. Determination of geothermal gradients 4. Temperature correction of other logs 5. Measuring tool head tension Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 92mm(3 5/8in) 1993mm(6.5ft) 44kg(97Lbs) Borehole Conditions Min Hole 4.5in Max Hole 20in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: Tool Position Centralized Decentralized Measurement Principle: Cable head tension, Mud Resistivity and Temperature Rm Temp Tension Range 0.01~5.0ohm-m 0~ lbs~+6000lbs Measurement accuracy Rm ±10 % Temp Tension ±(reading*1%+1ºc) 68Kg+reading*3% 8

12 Nuclear Electric Cartridge (NEC) The main functions of NEC Common Electronic Circuit Sub are the control, signal processing and communication for GRS, SGS, CNS, LDS and MSS; the control for HAS; the communication to surface acquisition system in conjunction with TGR. Dimentions and Ratting Maximum working temperature 150 Maximum working pressur 100MPa Tool OD Length Weight 86mm(3 3/8in) 2929mm(9.6ft) 48kg(106Lbs) Borehole Conditions Min Hole Max Hole 4.5in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: Tool Position Centralized Decentralized Resistivity Electric Cartridge (REC) The main functions of REC Common Electronic Circuit Section are the control and signal processing for DLS, DIS, BDS and HRAS; and the communication to surface acquisition system in conjunction with TGR. Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 86mm(3 3/8in) 1610mm(5.3ft) 27.5kg(61Lbs) Borehole Conditions Min Hole Max Hole 4.5in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: Tool Position Centralized Decentralized 9

13 Spectro-Gamma Ray Sonde (SGS) The Spectro-GR Sonde, in conjunction with NEC, uses five-window spectroscopy to resolve total gamma ray spectra into the three most common components of naturally occurring radiation---potassium, thorium and uranium. The tool can be combined with other LEAP-Series tools or subs through TCT and NEC. Main Applications of the Logs: 1. Definition of clay content 2. Detailed well to well correlation 3. Igneous rock recognition 4. Recognition of radioactive minerals 10

14 Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 99mm(3 7/8in) 1442mm(4.7ft) 49kg(108Lbs) Borehole Conditions Min Hole Max Hole 4.5in 20in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: 6.7m/min Tool Position Centralized Decentralized Measurement Principle: Range Vertical Resolution Depth of investigation Gamma Ray Spectro 0~500API 500mm(19.7in) 300mm(11.8in) Measurement accuracy U ± 1.5ppm TH ± 1.5ppm K ± 0.1% Stability of high voltage ± 2v 11

15 Compensated Neutron Sonde (CNS) The CNS contains a radioactive source that bombards the formation with fast neutrons that are slowed down and then captured primarily by hydrogen atoms in the formation. The slowed neutrons been deflected back to the tool are counted by detectors. Since the tool responds primarily to the hydrogen content of the formation, the measurement is scaled in porosity units. Both epithermal and thermal neutrons can be measured depending on the detector design. The tool uses two thermal detectors for a borehole-compensated thermal neutron measurement. The tool can be combined with other LEAP-Series tools or subs through TCT and NEC. Main Applications of the Logs: 1. Porosity analysis 2. Lithology identification 3. Clay analysis 4. Gas detection 12

16 Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 86mm(3 3/8in) 1794mm(5.88ft) 45kg(101Lbs) Borehole Conditions Min Hole Max Hole 6.0in 20in Borehole fluids: Air Fresh Salt Oil Recommended Logging Spd: 10m/min Tool Position Centralized Decentralized Measurement Principle: Range Vertical Resolution Depth of investigation Neutron-Thermal Neutron 1~85PU 600mm(23.6in) 200mm(7.87in) Measurement accuracy 0 ~ 10 PU ±1PU 10 ~ 45 PU ±10% > 45 PU ±10PU Measure points Measurement Measure Point Reference from Neutron 1040mm(41in) Bottom of Tool 13

17 Hydraulic Pad-mounted Device (HAS) The HAS is a hydraulic sidewall contact device that is used for the Combined Probe of Micro-spherically Focused resistivity and Litho-Density measurements. The hydraulic device forces the Combined Logging Probe of Litho-Density Probe and Micro-spherically Focused Probe to the sidewall during logging. It also provides a caliper for the correction of these pad-type logs. Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 117.5mm(4.6in) 3151mm(10.3ft) 103.5kg(228Lbs) Borehole Conditions Min Hole Max Hole 6in 21in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: 10m/min Tool Position Centralized Decentralized Operation voltage 127 VAC/0.7 ~ 0.9A/60Hz Time to open the pad 2 s Time to close the pad 60s 14

18 Combined Logging Probe of Litho-Density and Micro-spherically Focused Logging (LDS/MFS) The LDS, Litho-Density Sonde, makes direct measurements of formation lithology and density. Coupled with the Compensated Neutron Tool (CNS), it offers a good means of measuring porosity in a variety of environments. The contrasting response of the LDS and CNS is used to identify different rock matrices and differentiate between gas or liquid trapped in the rock pore spaces.. In conjunction with NEC and HAS, the Litho-density logs and the Micro-spherically Focused logs can be provided. The Litho-Density tool uses a sonde-mounted gamma ray source (1.5Ci,Cs 137 )and two detectors to measure the bulk density and the effective photoelectric effect (Pe) of the formation. A caliper is also recorded. The tool uses two detectors to compensate the measurement result for the effects of mud cake and hole rugosity. The Micro-spherically Focused Logging tool provides shallow micro-resistivity of small volume near the borehole in wells drilled with conductive drill fluid. The tool also provides a caliper measurement. It is usually run with Dual Laterolog Probe or Dual Induction Probe through TGR, NEC and REC. In conjunction with TGR, NEC and REC, LDS-MFS measurements can be combined with other LEAP-series tools or probes. Main Applications of the Logs of LDS: 1. Porosity analysis 2. Lithology determination 3. Caliper 15

19 Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight See HAS 874mm(2.9ft) See HAS Borehole Conditions Min Hole Max Hole 6.0in 20in Borehole fluids: Air Fresh Salt Oil Recommended Logging Spd: 10m/min Tool Position Centralized Decentralized Measurement Bulk density Pe Principle: Gamma attenuation Range 1~3.0g/cm3 1.0~14unit Vertical Resolution 360mm(14in) Depth of investigation 50~240mm(2~9.4in) Measurement accuracy Bulk density Pe (1.4<Pe<6.0) ±0.025g/cm3 ±6% (1.4<Pe<6.0) Repeatability(Regular borehole, thickness of MC 12.5 mm, and no barite in borehole) Bulk density ±0.015g/ cm3 Pe ±0.5 Pe unit 16

20 MFS- Micro-Spherically Focused Logging The Micro-spherically Focused Resistivity Tool provides very shallow resistivity measurements MFS (micro-spherically focused log). The tool provides resistivity information close to the borehole wall and is usually run in combination with the Dual Laterolog Tool to give a complete formation resistivity profile. The major goal of resistivity tools is to measure Rt, the resistivity of the uninvaded zone. Rt, together with porosity, can be used to compute the water saturation of a formation, which ultimately is used to determine hydrocarbon content. Rt cannot be obtained with only one resistivity measurement as the tools are affected by invaded and transition zones. An approximation of these two zones is necessary to correct the deep measurement to get the resistivity of the uninvaded zone. Correction is not the only benefit of a very shallow measurement. An estimation of Sor (residual hydrocarbon saturation) can be made (based on the assumption that the mud filtrate displaces all the mobile hydrocarbon in the invaded zone). The Rxo measurement (resistivity of the invaded zone) is deduced directly from the MFS (micro-spherically focused log) measurement.principles Main Applications of the Logs of MFS: 1. Resistivity of flushed zone 2. Location of porous and permeable zones 3. Movable hydrocarbon indication 4. Caliper 17

21 Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Pad OD Length Weight 142mm(5 3/5in) N/A N/A Borehole Conditions Tool Diameter Min Hole Max Hole 6.0in 20in Borehole fluids: Air Fresh Salt Oil Recommended Logging Spd: 10m/min Tool Position Centralized Decentralized Measurement Principle: Range Rxo(ohm-m): Caliper Vertical Resolution Depth of investigation Focused Micro Resistivity ohm-m 150~540mm(6~21in) 250mm(10in) 100mm(4in) Measurement accuracy 0.5~200 ohm-m ±5% 200~1000 ohm-m ±10% 1000~2000 ohm-m ±15% Caliper ±0.25in 18

22 Dual Laterolog Sonde (DLS) In conjunction with REC, the Digital Dual Laterolog provides both deep and medium resistivity measurements and is generally combined with the MSFL tool measuring the shallow micro-resistivity and caliper, and gamma-ray logging tools. Three resistivity measurements provide invasion profile and determine accurate true formation resistivity in wells drilled with low resistivity drill fluid against high resistivity formation. The tool can be combined with other LEAP-Express tools or Probes using TCT, REC and NEC subs. Main Applications of the Logs: (with MFS log) 1. True resistivity and flushed zone resistivity 2. Invasion profile 3. Correlation 4. Hydrocarbon detection 19

23 Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 92mm(3 5/8in) 3152mm(10.3ft) 102kg(212Lbs) Borehole Conditions Min Hole Max Hole 6.0in 20in Borehole fluids: Air Fresh Salt Oil Recommended Logging Spd: 10m/min Tool Position Centralized Decentralized Measurement Deep laterolog Shallow laterolog Principle: Focused Resistivity Focused Resistivity Range(ohm-m): ohm-m ohm-m Vertical Resolution 24in 24in Depth of investigation 2700mm(106in) 31.5in Measurement accuracy(in undistrubed formation) 0.2~1 ohm-m ±20% 1~2000 ohm-m ±5% 2000~5000 ohm-m ±10% 5000~40000 ohm-m ±20% 20

24 Dual Induction Logging Sonde (DIS) In conjunction with REC, the DIS records two resistivity curves having different depths of investigation and a SP curve. Combined with MSFL log, the three resistivity logs can be converted to the resistivity of flushed zone, the invasion diameter and the true resistivity (Rt). The tool is well used in wells drilled with medium and high resistivity drill fluid, for example, fresh water, air and oil-based mud. The tool is usually run simultaneously with other LEAP-Series tools or probes in conjunction with REC, NEC and TCT. Main Applications of the Logs: 1. True formation resistivity and hydrocarbon detection 2. Invasion profile 3. Depth control and correlation 21

25 Dimentions and Ratting Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 92mm(3 5/8in) 5844mm(19.2ft) 93kg(205Lbs) Borehole Conditions Min Hole Max Hole 6in 20in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: 30m/min Tool Position Centralized Decentralized Measurement Deep induction Medium induction SP Principle: Dual Induction Dual Induction Range 0.2~2000ohm-m 0.2~2000ohm-m -80~20mv Vertical Resolution 1500mm(59in) Depth of investigation 1700mm(67in) 800mm(31.5in) Measurement accuracy Deep induction Medium induction ±7% or ±1ohm-m ±7% or ±1ohm-m Measurement Repeatability: 0.2~50ohm-m ±3% 0.2~50ohm-m ±5% At calibration point ±1% 22

26 High Resolution Acoustic Sonde (HRAS) The HRAS utilizes one acoustic transmitter and four receivers combination to make measurement of the sound transmission properties of formations surrounding the borehole. The tool is designed one transmitter and four receivers with short space to measure the interval transit time of high resolution traveling through the adjacent formation. The HRAS can be combined with other LEAP-Series tools or probes through TCT, REC and NEC. Main Applications of the Logs 1. Porosity analysis 2. Gas detection 3. Lithology identification 4. Fracture detection 23

27 Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 92mm(3 5/8in) 3521mm(9.83ft) 65kg(143Lbs) Borehole Conditions Min Hole Max Hole 4.25in 17.5in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: 20m/min Tool Position Centralized Decentralized Measurement Principle: Range Vertical Resolution Depth of investigation High Resolutuion Acoustic 40~200μs/ft (130~650μs/m) 150mm(5.9in) 100mm(3.9in) Measurement accuracy 40 ~ 70μs/ft ±2μs/ft 70 ~ 200μs/ft ±3% 24

28 Borehole Directional Sonde (BDS) In conjunction with REC, the BDS provides simultaneously recording of the parameters of borehole orientation (hole azimuth and deviation). Main Applications: 1. Directional information 2. Location of permeable zones Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 86mm(3 3/8in) 1400mm(4.6ft) 22kg(49Lbs) Borehole Conditions Min Hole Max Hole 4.5in 20in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: Tool Position Centralized Decentralized Measurement DEV AZ Rb Range 0~90 0~360 0~360 Measurement accuracy DEV ± 0.2 AZ Dev. 5 ± 2 2 <Dev.<5 ± 5 Dev. 2 unstable Rb(0~360 ) ± 2 25

29 Digital Hydraulic X-Y Caliper (XYC) XYC can provide two independent caliper curves in X and Y directions.. Main Applications: Volumes of borehole and cement Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 117mm(4 5/8in) 2655mm(8.7ft) 91kg(201Lbs) Borehole Conditions Min Hole Max Hole 6in 21in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: 20m/min Tool Position Centralized Decentralized Measurement Range 6~21in Flexible Joint Sub (FJS) FJS-IB Flex Joint Sub is used between the centered tool and sidewall contact tool for that both of the tools can get good logging trajectories in the borehole. Specifications of the sub Dimentions and Rattings Maximum working temperature 150 Maximum working pressure 100MPa Tool OD Length Weight 92mm(3 5/8in) 1870mm(6.1ft) 60kg(132Lbs) Borehole Conditions Min Hole Max Hole 4.5in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: 6.7m/min Tool Position Centralized Decentralized 26

30 Digital Long Spacing Acoustic (DLSA) The development of DLSA was a serious attempt at making use of the information contained in the sonic waveform beyond the first arrival. With the digital signal processing software that can provide adequate spacing in time of the slowness of the compression component, shear and Stoneley components of the sonic waveforms and their corresponding energy level. The digital DLSA have be developed can be combined with other LEAP-Series tools through DLC. The long spacing sonic logging records the interval transit time of the first compressive arrival of a sound wave traveling in formations. The measurement is compensated for cave and sound tilt by the depth derived method (DDBHC) rather than the standard BHC method. Depth-derived compensation allows for the use of longer transmitter- receiver spacing than the standard BHC and all long spacing sonic tools used DDBHC technique. Long spacing sonic is useful for obtaining more accurate interval transit time in zones. Main Applications of the Logs: 1. Porosity analysis 2. Permeability indication 3. Fracture detection 4. Fracture height prediction 5. Sand strength analysis Dimentions and Rattings Maximum working temperature 150 or 175 Maximum working pressure 100 or 140MPa Tool OD Length Weight 92mm(3 5/8in) 9169mm(30ft) 92kg(203Lbs) Borehole Conditions Min Hole Max Hole 4.25in 17.5in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: 20m/min Tool Position Centralized Decentralized Measurement accuracy Principle: Range Vertical Resolution Depth of investigation High Resolutuion Acoustic 131~855μs/m 600mm(23.6in) 100mm(3.9in) 27

31 Digital High Resolution Dip Log (DHRD) The dip of a formation is represented by two components. The stratigraphical dip is the angle at which the sediment was originally deposited, and the structural dip is the result of subsequent tilting or deformation. DHRD provides measurements for computing the both dips to indicate potential oil and gas reservoirs. The tool has two side-by-side configured electrodes on each pad that provides good likeness curves enabling the computation and analysis of stratigraphical dips. Highly accurate deviation and azimuth are obtained from a tri-axial accelerometer and three magnetometers. It also provides two caliper measurements 90 degrees apart. The tool can be combined with GR tool through DLC. 28

32 Main Applications of the Logs: 1. Determination of both stratigraphical dips 2. Determination of both structural dips 3. Stratigraphical analysis 4. Fracture identification 5. Borehole geometry Dimentions and Rattings Maximum working temperature 150 or 175 Maximum working pressure 100 or 140MPa Tool OD Length 114mm(4 1/2in) 6796mm(22.3ft) Borehole Conditions Min Hole Max Hole 6in 20in Borehole fluids: Air Fresh Salt Oil Max Logging Spd: Tool Position Centralized Decentralized Measurement DEV AZ Rb Resistivity Caliper Range 0~90 0~360 0~ ~ 2000Ω m 6~20in Depth of investigation Vertical resolution 300 mm(11.8in) ±102mm(4in) Measurement repeatbility DEV ± 0.2 AZ ± 2 29

33 Pipe Conveyance Log (PCL) High-angle, extended reach, and horizontal drilling technologies have created new requirements for the conveyance of wireline logging instruments. Even in straight-hole drilling, difficult hole conditions such as washouts, bridges, key seats, dog legs, etc., present obstacles to standard wireline methods.cnlc offers pipe-conveyed logging equipments to acquire fast, reliable wireline data in both open and cased holes. Pipe-Conveyed Logging (PCL) PCL is suitable for well conditions such as washouts, bridges, and high angles. The instruments are attached to the drill pipe for tripping in and out of the well while the downhole wireline connection is made by means of a sideentry sub. Repetitive PCL wet connections can be made for multiple-zone servicing. Advantages Tool protection options Fast rig up/down Logs in/out of well All logging combinations available Mud circulation through the drill pipe Multiple wet connections without tripping tools Specifications 1) 7-Conductor Pump Down Head Max Temp: 400 F Max Press: 20,000 psi Sizes Available (OD)* Minimum Drillpipe ID 2-in. Head 2¼ in. 2-¼-in. Head** 2¾ in. Other sizes available with single conductor latch 2) Connector Sub Assembly Max Temp: 400 F Max Press: 20,000 psi Assembly Max OD Drillpipe Connection* 3 ½ in. 27/8 in. 30

34 4 ½ in. 3 ½ in. 6 ¼ in. 4 ½ in. All threads meet API specifications. 3) Side-Entry Sub Max Temp: 400 F Max Press: 20,000 psi Max OD Drillpipe Connection* 3 ¼ in. 23/8 in. 8Rd 5 ½ in. 3 ½ in. IF 65/8 in. 4 ½ in. Xhole 7 ¼ in. 4 ½ in. Xhole All threads meet API specifications. 31

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