• Xưởng sửa chữa và chuẩn chỉnh máy địa vật lý

    Xưởng có nhiệm vụ chính là bảo dưỡng, sửa chữa và hiệu chỉnh các máy móc thiết bị điện tử phục vụ cho các đơn vị trong Xí nghiệp địa vật lý giếng khoan. Ngoài ra xưởng còn nghiên cứu đưa vào ứng dụng và phát triển công nghệ tin học trong công tác địa vật lý

  • Trung tâm Phân tích và Xử lý số liệu

    Có nhiệm vụ đánh giá chất lượng tài liệu do Xí nghiệp Địa vật lý thực hiện.

  • Đội công nghệ cao

    Khảo sát địa vật lý tổng hợp trong giếng đang khoan. Đo địa vật lý tổng hợp, bắn mìn.

  • Đội Kiểm tra công nghệ khai thác

    Có nhiệm vụ là đo khảo sát và kiểm tra công nghệ khai thác trong các giếng khai thác và bơm ép.

  • Đội Carota khí

    Đội Carôta khí có nhiệm vụ chính là khảo sát carota khí, cung cấp kịp thời các số liệu để xác minh trữ lượng, tình trạng các giếng khoan.

  • Đội thử vỉa

    Đội có nhiệm vụ thử vỉa ở các giếng khoan nhằm định hướng cho công tác khoan, xác định tình trạng và đo vỉa, cung cấp thông tin để xác định trữ lượng công nghiệp của giếng

L&TD

LOGGING & TESTING DIVISION

XÍ NGHIỆP ĐỊA VẬT LÝ GIẾNG KHOAN - BẠN ĐỒNG HÀNH CỦA CÁC NHÀ DẦU KHÍ - TRANG WEB ĐANG TRONG THỜI GIAN NÂNG CẤP VÀ CẬP NHẬT....

Open hole logging

    1. INTRODUCTIONS

       Services

  • Electrical logs: DLL, MSFL, HRI, Dipmeter, EMI.
  • Radioactive logs: LDL, CNL, SGR, GR.
  •  Acoustic logs: BHC, FWSL, Crossed dipole wavesonic log, Bore hole televiewer, Vertical seismic profile. 
  • Others: Caliper, Deviation survey…
  • Toolpusher
  •  VSP (Vertical Seismic Profile)  

       Equipment

  • 03 Halliburton’s Logging Units
  • 04 Russian’s new-tech Logging Units
  • 02 Huanding’s Logging Units

 

       Surface Logging System & Excell 2000 Application

       Excell 2000 Application

  • Complete openhole logging services 
  • Complete casedhole logging services
  • Production logging 
  • Real-time display of borehole images via the EMI ™ and CAST ™ services
  • Completion services including setting packers and bridge plugs, perforating, pipe recovery, and chemical cutter 
  • Verifying and evaluating stimulation, cementing, and gravel pack operations

       LOGIQ-B SURFACE LOGGING SYSTEM :

 

       The LOGIQ-B Logging System is the next generation of Data Acquisition Systems for Halliburton Wireline Logging Services. For Open Hole Services, the logging software runs under the new platform on a Rack Mount based Windows 2000 environment to provide remote controlled capabilities, real-time petrophysical data acquisition services.

        For Cased Hole Services, the Cased Hole Software running under Windows 2000 provides real time monocable data acquisition services. The LOGIQ Logging System has three main subsystems:

  •The Tool Power Subsystem

•The Tool Interface Subsystem

        •The Processing Subsystem

     Tools Specifications

  • Max Temp: 3500F. Max press: 20 000 psi 
  • Max hole: 24”. Min hole: 4.5”
  •  High Sensitivity & Accuracy
  • Logging Speed: 30 – 100 ft/min
  • LDL: Full Spectral Analysis
  • Dipole Sonic: 96 Full Wave Forms
  • EMI: 6 independent arms, 150 sensors
  • CAST-V: 200 shots/scan.

     DUAL LATEROLOG

 
Deep Laterolog
Shallow Laterolog
   Max Temp
350°F (175°C)
 
   Max press
20 000 psi (137900 kPa)
   Max hole
24 in (610 mm)
   Min hole
4.5 in (115 mm)
   Vertical Resolution
24 in. (61.0 cm)
24 in. (61.0 cm)
   Depth of Investigation (50%)
60 - 84 in (154.2 - 213.4 cm)
24 - 36 in (61.0 - 91.4 cm)
   Sensitivity
1% of reading
1% of reading
   Accuracy, High
5%
5%
   Accuracy, Low
5%
5%
   Primary Curves
LLD
LLS
   Secondary Curve
SP 

     Dual Laterolog service provides reliable means of measuring formation resistivity in conductive borehole fluids under harsh downhole conditions.      

     Applications 

  • Accurately computing hydrocarbon saturation 
  • Delineating thin beds 
  • Indicating permeable zones and estimating invasion diameter (when used with an appropriate Rxo measurement)
  • Identifying formation fluid contacts within the reservoir
  • Acquiring optimum formation resistivity measurements when the contrast between formation resistivity and borehole-fluid resistivity is very high
  • Indicating fracture zones in both sedimentary and basement rock

     MICROSFERICALLY FOCUSED LOG

     Tool specification

   Principle
Microsferically focused log
   Max Temp
3500F (1750C)
   Max Press
20 000psi (137 900 kPa)
   Max hole
20 in (508 mm)
   Min hole
6 in ( 152 mm)
   Range
0.2-2000 Ohmm
   Vertical Resolution
3 in
8 cm
   Depth of Investigation (50%)
1-4 in
2.5-10 cm
   Sensitivity
1% reading
   Accuracy
±5%
   Primary Curves
MSFL
   Secondary Curve
CALIPER

      Applications

  • Resistivity of flushed zone
  • Locate porous and permeable zones
  • Delineate thin beds
  • Estimate porosity
  • Movable hydrocarbon indication
  • Caliper

       COMPENSATED SPECTRAL NATURAL GAMMA RAY

        Tool specifications

 Principle
Gamma-ray spectroscopy
 Max Temp
3500F (1750C)
 Max Press
20000psi (137 900 kPa)
 Max hole
20 in (510 mm)
 Min hole
4.5 in (115 mm)
 Vertical Resolution (90%)
Standard 36 in. (917.28 mm)
Enhanced 18 in. (458.64 mm)
 Depth of Investigation(50%)
4 in. (90%: 11 in.) ; 102 mm (90%: 280 mm)
Precision (1 SD)
± 3% or ± 5 API whichever is larger
 Accuracy:
± 5% or ± 5 API whichever is larger
 Primary Curves
GRKUT, GRKT, GRTH Uranium, Thorium, Potassium Concentrations
Secondary Curves
Fit Error, Stabilizer Counts, Noise, Source Factor, Uncertainties for each element

      Applications

  • Detect producible zones
  • Increase reservoir understanding
  • Determine clay types, volumes, and action exchange capacity
  • Locate radioactive tracers
  • Identify lithology or determine average casing thickness
  • Basement’s fracture zones quick indicator

       SPECTRAL DENSITY LOG

       Tool specifications

 
Buck Density
Pe
Pe High resolution
   Max Temp
350°F (175°C)
   Max Press
20000psi (137 900 kPa)
   Max hole
20.75 in. (528.7 mm)
   Min hole
4.5 in (115 mm)
   Vertical Resolution (90%)
Standard 33in (83cm) Inhanced 5.5in (14cm)
4in (12.7cm)
2in (5.1cm)
   Depth of Investigation
1.5 in. (3.8 cm)
0.5 in. (1.3 cm)
0.5 in. (1.3 cm)
   Precision (1 SD)
0.37%
1.6%
5.3%
   Primary Curve
RHOB, DRHO, Pe
   Secondary Curve
DP e , P e Q, QLS, QSS, GR, Caliper, Standoff

     Applications

  • Accurate determination of formation bulk density
  • Reliable identification of formation lithology, regardless of formation fluid type
  • Precise delineation of thinly bedded formations (the unfiltered Pe curve is used)
  • Excellent indication of gas when used in combination with a neutron log
  • Excellent effect of basement dyke identification when used in combination with a neutron log

     DUAL SPECTRAL NEUTRON

     Tool specification

  Max Temp
3500F (1750C)
  Max Press
20 000 psi (137 900 kPa)
  Max hole
20.75 in (529 mm)
  Min hole
4.5 in (115 mm)
  Vertical Resolution (90%)
Standard 36 in. (917.28 mm)
Enhanced 20 in. (509.6 mm)
  Depth of Investigation(50%)
6 in. (152.88 mm)
  Precision (1 SD)
Low (1SD) ± 0.1 @ 3 p.u.
High (1SD) ± 0.3 @ 30 p.u.
  Accuracy, Low
± 5% or ±1 p.u., whichever is larger
  Primary Curves
Neutron Limestone Porosity
Near-to-Far Detector Count-Rate Ratio
  Secondary Curve
Near- and Far-Detector Count Rates
  Source
AmBe

     Applications

  • Superior accuracy
  • Repeatable results
  • Improved thin bed evaluation
  • Increased reservoir understanding
  • Faster log runs
  • Gas detection
  • Dykes detection

     BOREHOLE COMPENSATED SONIC

     Tool specification

  Principle
Borehole Compensated Sonic
  Max Temp
3500F
1750C
  Max Press
18 500 psi
127 600 kPa
  Max hole
17.5 in
445 mm
  Min hole
4.25 in
108 mm
  Range
40-190 ms/ft
131-623 ms/m
  Vertical Resolution (90%)
2ft
0.610 m
  Depth of Investigation (50%)
<3 in
<76.2 mm
  Sensitivity
na
na
  Accuracy
±1 ms/ft
± 3 ms/m
  Primary Curves
Δtε ( compressional slowness)
  Secondary Curves
Φc

    Applications

  • Porosity analysis
  • Lithology identification
  • Abnormal pressure identification
  • Velocity data for seismic studies
  • Fracture identification

    FULLWAVE SONIC

     Tool specifications

   Approximate Overall Length
   ·Standard configuration
   ·Extra-Long configuration
637 in.
728 in.
16.18 m
18.49 m
   Temperature Rating
400°F
204°C
   Pressure Rating
20,000 psi
137 900 kPa
   Recommended Hole Sizes
   ·Minimum Borehole Diameter
   ·Maximum Borehole Diameter
4.5 in.
20 in.
114 mm
508 mm
   Transmitter
   ·Type
   ·Resonant Frequency
Piezoelectric, metal-covered
15 kHz
   Receivers
   ·Type
   ·Frequency Response
Piezoelectric, metal-covered
Flat from 700 Hz to 30 kHz
  Transmitter-To-Receiver Offsets
  Standard Configuration
  Extra-Long Configuration
  Short Configuration
10, 11, 12, and 13
ft
17.5, 18.5, 19.5
and 20.5 ft
3 and 5 ft
3.05, 3.35, 3.66
and 3.96 m
5.33, 5.64, 5.94
and 6.25 m
0.91 and 1.52m

     Applications

  • Improved porosity estimates using both Tc, and Ts.
  • Lithology identification by means of velocity ratio, Ts /Tc.
  • Location of gas zones, even in poor hole conditions and cased holes
  • Indication of permeability variations with depth from Stoneley wave attenuation
  • Detection of naturally fractured zones
  • Determination of rock elastic constants
  • Estimation of formation strength and least horizontal stress
  • Prediction of vertical extent of hydraulic fractures

     WAVE SONIC

     Tool specifications

  Principle
Time‑slowness Δtc, Δtsxx and Δtsyy
  Max Temp
350°F
175°C
  Max Press
18 500 psi
127 600 kPa
  Max hole
24 in
610 mm
  Min hole
4.5 in
115 mm
  Range
Dynamic
  Vertical Resolution (90%)
6 in
15 cm
  Depth of Investigation (50%)
3 to 20 ft
1 to 3m
  Sensitivity
N/A
  Resolution
0.2 μs
  Primary Curves
Δtc, Δtsxx and Δtsyy
  Secondary Curves
Vp, Vs, Φc, ITTp, ITTs Semblance quality. Slowness
Anisotropy, Poisson’s ratio, Stoneley
slowness

    This is an example of a semblance diagnostic plot of the waveform data from the eight waveforms. In the circle is a section of a WaveSonic log showing Monopole P wave slowness and semblance quality monopole refracted Shear wave

    The Product of Superior Technology

    WaveSonic tool service provides simultaneous monopole and crossed dipole sonic information. P‑wave and S‑wave slowness can be obtained in formation conditions ranging from poorly consolidated high porosity gas saturated sandstones to low porosity carbonates.

    Other benefits include

  • Low frequency monopole and dipole sources for deeper investigations of sonic slowness measurements beyond any near wellbore alteration effects Broadband eight‑level, quad receiver array for high quality waveform data
  • State‑of‑the‑art tool design is an extension of the robust Sperry‑Sun LWD BATTM Sonic
  • Combinable with all openhole tools, including MRIL and RDTTM
  • On‑depth, low frequency bender bar source provides a clean source signal.
  • No need for dispersion corrections for slowness determination.
  • No depth shifting of waveform data for anisotropy analysis.
  • Robust tool isolator design allows for drill pipe conveyed operations; WaveSonic tool not limited to bottom of tool string

    SIX ARM DIPMETER

     Tool specifications

 
Resistivity
Azimuth
Rotation
Deviation
Caliper
  Principle
*
High sample-rate accelerometer and magnetometer
6 independent
  Max Temp
3500F (1750C)
  Max Press
20000psi (137 900 kPa)
  Max hole
20 in (510 mm)
  Min hole
4.5 in (115 mm)
  Vertical Resolution (90%)
0.3 in
na
na
na
na
  Depth of Investigation (50%)
Formation- dependent
na
na
 
na
  Accuracy
na
±5°
±2°
±0.5°
±0.1 in
  Primary Curves
, 1-6, AZI, HAZI, DEV, ROT, CAL 1-6
  Secondary Curves
Dip angle, dip AZI, borehole inclination

     Applications

  • Determine magnitude and direction of formation dip
  • Identify structural and stratigraphic events
  • Identify fractures
  • Provide drift survey
  • Determine true vertical depth
  • Determine exact location of bottom hole
  • Provide borehole profile and cement volume calculations

    ELECTRICAL MICRO IMAGING

    Tool specification

  Maximum Temperature
350°F
177°C
  Maximum Pressure
20,000 psi
137 900 kPa
  Measurement Range
0.2 - 5000 ohm m
Depth of investigation
  Resistivity Imager
30 in.
762 mm
  Dipmeter Processing
0.9 in.
23 mm
  Resolution
.2 in.
5.08 mm
  Maximum Hole Size
21.00 in
533 mm
  Minimum Hole Size
6.25 in
159 mm
  Number of Buttons
150
Number of Pads
6 (fully independent)

   IMAGING – THE KEY TO BETTER ANALISYS                               

   Real-time images are produced at the wellsite. Detailed post-acquisition analysis of the image data is made with high-performance InterView ™ analysis software. Image analysis and enhancement techniques are available for precise identification of formation reservoir characteristics, including the following:

  • Detailed stratigraphic and sedimentological analysis. Identification and Characterization of Sedimentary Features

   • Thin bed delineation

   • Fracture analysis

   • Fault Identification and Orientation

   • Identification and Orientation of Secondary Porosity

   HIGH RESOLUTION INDUCTION

   HRI Tool specification

 
Deep
 Medium
Shallow
  Max Temp
3500F (1750C)
  Max Press
20 000 psi (137 900 kPa)
  Max hole
4 in (102 mm)
  Min hole
24 in (610 mm)
  Range
0.1 to 2000 ohm.m
 Vertical Resolution (90%)
12 or 24 in
(30.5 or 61 cm)
12 or 24 in
(30.5 or 61 cm)
<17 in
(<43cm)
 Depth of Investigation (50%)
91 in
(231 cm)
39 in
(99.06 cm)
<17 in
(<43cm)
  Sensitivi
±0.25 ohmm
±0.25 ohmm
±0.1ohmm
  Accuracy
± 1%
or ± 1 ohmm
± 1%
or ± 1 ohmm
± 2%
  Primary Curves
HRd, HRm, DFL, HR90, HR60, HR50, HR40, HR30, HR24
 Secondary Curves
SP

     CAST-V

     Primary applications include

  • Open Hole Borehole Imaging
  • Fracture Detection
  • Casing Inspection (Both Thickness And Diameter)
  • Ultrasonic Cement Evaluation/ Imaging

     The energy levels of reflected ultrasonic wave have been used

  • To locate the fracture zones
  • To differentiate between open fractures and filled fractures
  • To determine the geometric characteristics of fractures: dip, azimuth dip, and aperture
  • In fact, surveys in basement of Cue long basin indicated that CAST-V is the most effective tool for studying basement fractures.

     HUANDING SYSTEM

     HH-2530 HARDWARE

  • 530 main computer and 530 auxiliary computer constitute dual-computer system to complete 530, 520, 521 and WTC production loggings and perforating and sidewall coring.
  •  The software is of OPERATIONAL SYSTEM Windows-2000 to establish an open platform.
  • If the 530 main computer has trouble, the auxiliary computer can enter the system quickly through Ether net port of Network exchanger to replace the 530 main computer continue the logging task.

                         

     530-Series: High Reliability Logging Tools

     530-SERIES TOOL STRING

     TTR: Temperature/Tension/Rm Tool
     TGR: Telemetry & Gamma Ray Sub
     HAS: Hydraulic Pad-mounted Device
     SGS: Spectro Gamma Ray Sonde
     CNS: Compensated Neutron Sonde
     NEC: Common Electronic Circuit Section 1
     LDS-MFS: LDT and MSFL Combined Sonde
     BDS: Borehole Deviation Sonde
     REC: Common Electronic Circuit Section 2
     DLS: Dual Latero-logging Sonde
     HRAS: HR Sonic Sonde
     DIS: Dual Induction Sonde
     FJS: Flexible Joint Sub
     D4C: 4-independent Arm Caliper

     VERTICAL SEISMIC PROFILE

     Tool Specifications

  • Up to 42 satellites                                    

  • Real time data transmission

  • 24bit Delta-Sigma convertors

  • 180oC temperature rating Unique Active Cooling System for continuous operation at 180oC

  • 20000psi pressure rating

  • Up to 95m between satellites 

     TOOLPUSHER              

     Applications

  • Toolpusher is a tool transport system use to convey the logging tools to the bottom of the well.
  • Able to log any angel well
  • Same log quality as standard tools
  • Tools always attached to drillpipe
  • Mud circulation past the tools
  • Able to log long intervals
  • Accurate depth control

 

     ROTARY SIDEWALL CORING TOOL (RSCT)                                      

 The RSCT™ tool diamond-drills cores perpendicular to the borehole wall with continuous monitoring of the coring process. After gamma ray depth positioning, a backup shoe is extended to decentralize and hold the tool securely against the formation. A diamond bit rotating at 2,000 rpm cuts a 0.9375-in OD, 1.75-in. long sample from the formation. Surface control of weight-on-bit optimizes drilling.

       RSCT Tool Features

       The RSCT tool contains the following features 

      • Allows 30 or more cores to be taken in one run   

       • Can be run on Toolpusher™ logging system or coiled tubing to acquire cores in deviated, extended reach, and horizontal wells

       • A core length indicator takes the guesswork out of core recovery

       • Stand-alone tools can be run on third-party logging units 

        RSCT Tool Benefits

       • Formations. Originally designed to recover cores in hard rock formations inaccessible with percussion tools, the RSCT can be used with equal success in soft rock formations.

       • Positive Depth Correlation. Gamma ray tool positioning provides accurate core point location.

• Drills Undistorted, Non-Micro Fractured Cores. Core samples are undistorted with consistent cylindrical geometry which allows a wide range of petrophysical testing and analysis.

       • Useful in Formation Damage Assessment. Allows for evaluation of pre-existing formation damage.

       Rotary Core Applications

       Rotary core samples collected by the RSCT tool can be used to provide

       • More accurate readings of porosity and permeability that reduce reservoir analysis variables.

       • Information useful in fine-tuning MRIL® data.

       • Reliable data for rock mechanical analysis necessary for hydraulic fracturing design, wellbore stability analysis, and sand potential prediction

       ExperienceS

  • White Tiger Project: Over 300 Wells
  • Dragon Project: Over 50 Wells
  • Hoang Long Project (PIDC) 1 Well
  • PVEP’s Projects: 10 Wells
  • VRJ’s Projects: 2 Wells
  • JVPC Projects: 7 Wells
  • KNOC Projects: 4 Wells
  • 15 – 20 Well/Year.

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