Product Name：CDC-C Modular Formation Tester
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Description：
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The CDC-C modular formation tester can complete the measurement of strain pressure, quartz pressure, and fluid temperature. By using the pumping module and the fluid analysis module, the downhole fluid analysis can be performed in real time through the measurement of resistivity, water hold-up and density to achieve the purpose of obtaining the real fluid in the formation.
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Tool IntroductionCompositionTechnical specificationsApplication Description
The CDC-C modular formation tester can complete the measurement of strain pressure, quartz pressure, and fluid temperature. By using the pumping module and the fluid analysis module, the downhole fluid analysis can be performed in real time through the measurement of resistivity, water hold-up and density to achieve the purpose of obtaining the real fluid in the formation. Conventional sampling can be performed with an air cushion, and PVT high-pressure sampling can be performed with a water cushion using the pumping module.
It is composed of CDX-C electronic unit, CDM single Sonde unit, EPM power module (to power the modules below CDM), CQM quartz crystal module, FAM fluid analysis module, POM pumping module, and SAM sampling module. The SAM sampling module is sampled by air cushion and water cushion. And it is resistant to H2S.
Overall specifications |
Maxtemperature | 350 ℉ (175 ℃ ) |
OD | 4.7in (120mm) |
Applicable hole size | 6-22 in (152 mm-559 mm) |
Environmental pressure | 20000 psi (138Mpa) |
Max withstand pressure | 20000 psi (138Mpa) |
Weight | 725kg |
Length | 21m |
Sonde Module |
Pre-test room volume | 2×10cc |
Fluid pressure measurement range | 0-20000 psi (depending on the type of pressure gauge ) |
Pressure measurement sensitivity | Strain gauge 0.1 psi |
Quartz pressure gauge 0.01 psi |
Pressure measurement accuracy | Strain gauge ±0.13%FS |
Quartz pressure gauge ±0.01%FS |
Temperature measurement range | -25~250 ℃ |
Special Packer | Large area packer ; Extended packer ; Rapid packer |
Real-time fluid identification module |
Resistivity measurement range | 0.01- 200Ω.m |
Resistivity accuracy | 5% |
Water holdup measurement range | 0-100% |
Water holdup measurement accuracy | 3% |
Density measurement range | 0-2.0 g/ml |
Density measurement accuracy | 0.015 g/ml |
Pump module |
Rated pumping capacity | 1100ml/min |
Working pressure difference | 28Mpa |
Working Mode | Fluid → Mud ; Mud → Fluid ( micro-fracture ); Fluid → Upper sampling ; Fluid → Lower sampling |
Sampling Module |
Conventional sampling module | 2×4100ml |
PVT Sampling Module | 6×420ml ( a total of 12 sampling tubes can be carried ) |
PVT Sampling Mode | PVT single-phase formation fluid sampling |
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