Product Name：CDC-C FORMATION TESTER
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Type：
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CDC-C
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producer：
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Huanding Energy Services
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Description：
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CDC-C formation tester consists of several modules, the tool combination can be flexible due to client's requirement. This system can accomplish strain gauge, quartz crystal gauge , fluid temperature measurement, it can apply real-time downhole fluid analysis by performance of pump-out module and fluid analysis module through measurement of resistivity, water holdup and fluid density, and by this mean to achieve the goal of real formation fluid collection. We can apply air cushion for conventional sampling, or use pump-out module combined with water cushion for PVT high pressure sampling. CDC-C Modular Formation Dynamic Tester Tool is composed of HH2530/2580 surface acquisition system, CDX-C electronic unit section, CDM single probe unit, EPM power supply sub(power supplier to modules below CDM) , FAM fluid analyzing module, POM pump out module, and SAM Sampling module. SAM sampling module is divided into two sampling modes: air cushion and water pump out. All flowlines and sampling chambers are made by anti- H2S material.
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INTRODUCTIONSPECIFICATIONAPPLICATION DESCRIPTION
CDC-C formation
tester consists of several modules, the tool combination can be flexible according
to client's requirement. This system can accomplish strain gauge, quartz
crystal gauge , fluid temperature measurement, it can apply real-time downhole
fluid analysis by performance of pump-out module and fluid analysis module
through measurement of resistivity, water holdup and fluid density, and by this
way to achieve the crude formation fluids sampling. We can apply air cushion
for conventional sampling, or use pump-out module combined with water cushion
for PVT high pressure sampling. CDC-C Modular Formation Dynamic Tester Tool is
composed of HH2530/2580 surface acquisition system, CDX-C electronic unit section,
CDM single probe unit, EPM power supply module (power supplier to modules below
CDM) , FAM fluid analyzing module, POM pump out module, and SAM Sampling
module. SAM sampling module have two kind of sampling modes: air cushion and
water cushion (need pump out) . All modules are made by anti- H2S
material.
1. GENERAL SPECIFICATION
MAX TEMP.: IB:150℃, IC:175℃
MAX PRESSURE: 20000psi（138MPa）
MAX PUSH: 30KN
PRETEST CHAMBER VOLUME: 2×10CC
BASIC OD : Φ120mm（CDM SECTION MAX Φ127mm）
HOLE SIZE: 152.4mm~374.7mm（ 6”~14.75”）；WITH PISTON EXTENSION CAN REACH 22”.
TOTAL WEIGHT: ABOUT 780KG
SAMPLING QUANTITY: Maximum number of connected sampling chambers depends on the cable strength and borehole condition.
SHOCK: 1OOG, 3D
VIBRATION: 7.5G, 3D , 10～60Hz
TOTAL LENGTH: ABOUT 20.5M (WITH TWO SAMPLING CHAMBERS)
2. PRESSURE＆TEMPERATURE MEASUREMENT
2.1 STRAIN GAUGE
MEASUREMENT RANGE ON PRESSURE: 0 ～10000psi；(0～20000psi OPTIONAL)
PRESSURE MEASUREMENT RESOLUTION: 0.1psi
PRESSURE MEASUREMENT ACCURACY: ±0.13%F.S
2.2 QUARTZ GAUGE:
a) RANGE: 100MPa（14503psi）
b) ACCURACY: 0.02%FS
c) RESOLUTION: 0.015 PSI
d) REPEATABILITY: 0.01％F.S
2.3 TEMPERATURE SURVEY
a) RANGE: -25～170℃， MAX 250℃
b) ACCURACY: ±1℃
c) RESOLUTION: 0.01℃
3. FLUID ANALYZING MODULE
3.1 RESISTIVITY SENSOR
RANGE: R=0.01～20Ω/m
ACCURACY: 20%（WITHIN 0.1～2Ω/m, 10% WITHIN 0.5～1.5Ω/m）
RESOLUTION: 0.01Ω/m
3.2 WATER HOLDUP SENSOR
RANGE: 0-100%
ACCURACY: ≤5%
RESOLUTION: 0.1%
3.3 DENSITY SENSOR
RANGE: 0.05g/cm3～2.0g/cm3
CALIBRATION ACCURACY: ＜0.03g/cm3
RESOLUTION: 0.001g/cm3
4. PUMP OUT MODULE
4.1 HYDRAULIC SYSTEM PARAMETER
OIL SOURCE PRESSURE: 24MPa（3500psi）
OIL SOURCE FLOW: 1000~2500ml/min
4.2 FLUID PUMP-DRAINAGE PARAMETER
DIFFERENTIAL PRESSURE : MAX 27.6MPa（4000psi）
PUMP-DRAINAGE FLOW: MAX 800-2000ml/min
SINGLE DIRECTION FLOW: 330ml
5. SAMPLING MODULE
5.1 WORKING MODE
MODE 1, air cushion for conventional sampling
MODE2, pump-out module combined with water cushion (OVER PRESSURE SINGLE PHASE SAMPLING)
SAMPLING MODE: SAM MODULE ACTS AS A PART OF CDC-C, WHEN PROBE PENETRATES SIDEWALL, FORMATION FLUID ENTERS FLOWLINES. AS SOON AS SURFACE COMMAND RECEIVED BY SAMPLING MODULE, ELECTRIC THROTTLE VALVE SEAL WILL BE OPENED UPON THESE COMMANDS. WHEN WE DECIDE TO USE AIR CUSHION, THEN FILL BUFFER CHAMBER WITH 100PSI AIR, FORMATION FLUID PUSHES INSULATING PISTON INTO SAMPLING CHAMBER BY FORCE OF DIFFERENCIAL PRESSURE. IF WATER CUSHION IS APPLIED, IT WORKS MUST TOGETHER WITH PUMP-OUT MODULE, FORMATION FLUID ENTERS SAMPLING CHAMBER BY FORCE OF PUMP-OUT MODULE.
5.2 Sample volume
EFFECTIVE VOLUME: 4100mL
6 OUTLINE DIMENSION
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Item
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Description
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O.D（mm)
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Effective Length（mm)
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Total Length
（mm)
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1
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CDX-C Electronic Section
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Φ92
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1950
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2450
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2
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CDM Mechanical Section
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Φ127
（Max. Φ141)
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3310
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3810
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3
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EPM-C Power MODULE
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Φ120
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2470
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2970
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4
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CQM QUARTZ MODULE
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Φ120
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718
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1218
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5
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FAM FLUID ANALYZING MODULE
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Φ120
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2220
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2710
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6
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POM PUMP OUT MODULE
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Φ126
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3870
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4370
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7
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SAM Sampling Module
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Φ120
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2778
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3278
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8
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DB BOTTOM NOSE
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Φ120
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170
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8
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Total Length:
CDX-C+CDM+EPM-CQM+FAM+POM+SAM×１+DB=17.486（m)
CDX-C+CDM+EPM+CQM+FAM+POM+SAM×2=20.264（m)
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1. ONLY NEED SG DATA
2. SG DATA+ CQG DATA+ FLUID TEMPERATURE
3. SG+CQG+TEM+CONVENTIONAL SAMPLING（WITH AIR CUSHION）
4．FLUID ANALYZING AND SAMPLING ARE ADDED( OVER PRESSURE SAMPLING)
EXPLAIN:
1. SAM SAMPLING CHAMBER VOLUME 4.1 LITRE
2. THE BOTTOM NOSE (φ120×155)MUST BE CONNECTED AT THE BOTTOM OF EACH COMBINATION TO GUARANTEE SUCCESSFUL COMMUNICATION.
3. SG----STRAIN GAUGE
CQG----CRYSTAL QUARTZ GAUGE
TEM----TEMPERATURE SENSOR, INSIDE CQM
4. EPM: POWER SUPPLY MODULE, power supplier to modules below CDM