Model: | LD-CHDT |
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Brand: | LD |
Origin: | Made In China |
Category: | Industrial Supplies / Industrial Supplies Stocks |
Label: | Cased Hole Tester , CHDT , well logging tools |
Price: |
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Min. Order: | 1 pc |
Summary
Cased hole formation dynamics tester for imaging in the formation pressure, effective permeability imaging, skin factor imaging, fluid productivity index imaging logging technology as a whole, with a dual packer formation test of comprehensive logging instrument. It is used in perforating casing well after the test, or for oil and gas production wells of early, middle and late formation test.
The main characteristics of multi layered testing instrument is for transmission control signal with cable and the measuring signal, downhole instrument of the hydraulic system can make the upper and lower packer seat seal and re-opened. When the seat seal packer section of the annular space of the well fluid and the packer segment of formation fluids into the test chamber of the instrument, and then filled with the test chambers, the pressure of test chambers is recorded by the pressure sensor changes over time. Due to the flow rate is given and adopted the different flow test several times, using the formation percolation theory can be measured directly the various of dynamic characteristics of the strata.
Multiple layered testing instrument construction conditions and the inadaptable well,layer
1.No damage, no deformation of Casing;
2. The cementing quality is good, no channeling phenomenon in perforation reservoir;
3. Perforation must be scraping before construction to ensure that the packer multiple seat seal;
4. We must pass well before construction to ensure no foreign body in the well and the well liquid clean;
5. For serious sand production wells, it can’t be constructed;
6. No construction with wellbore above the dogleg
7. The well construction cannot be more than 30 degrees.
Specifications
Adaptation casing |
5.5 in |
The diameter of the instrument |
102mm (Max diameter is 110mm) |
Double sealing ring height |
0.5m |
The work pressure of hydraulic system |
24Mpa |
The hydraulic system of dual packer provides sealing pressure |
24Mpa |
The maximum volume of the test chamber |
240ml |
The opening pressure of test chamber |
16~20Mpa |
DC for a brushless motor parameters |
Motor voltage Vdc=75v, maximum output Ni=500W, motor speed 0~3000rpm |
The output flow of the pump |
pump delivery qo≥1.3cm3/r, maximum revolutions 3000rpm, maximum working pressure P=24Mpa |
The total quality of downhole instrument |
W=350Kg, Length l=8.5m |
The total volume of the dual packer piston |
V≤550cm3 |
The maximum working temperature of downhole instrument |
-25℃~85℃ |
Storage temperature |
-25℃~60℃ |
The maximum pressure on the environment |
50Mpa |
Measurement precision of formation fluid pressure |
0.05%. |
Xi’an Laudable Petroleum Technology Co., Ltd | |
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Country/Region: | Shaan Xi - China |
Business Nature: | Manufacturer |
Phone: | 89388771 |
Contact: | betty (sales) |
Last Online: | 02 Feb, 2015 |