Breakthrough progress in research of logging-while-drilling logging equipment in China

The topic of “while-drilling logging system development” undertaken by the LWD Logging Center of China Oil Logging Co., Ltd. and the “Keystone technology research on LWD system design and resistivity detection” topic passed the acceptance of the expert group.

These two projects were established in 2008 to improve the technical level and core competitiveness of logging while drilling. Researchers conducted a lot of in-depth explorations in terms of instrument principle design, prototype development, calibration methods, and well logging data processing and interpretation methods. After field tests of multiple horizontal wells and directional wells, qualified well logging data were obtained.

The company has developed logging-while-drilling systems that include directional telemetry, azimuthal gamma, centered gamma, sensing resistivity, electromagnetic wave resistivity, and controllable source neutron porosity, to form three-parameter formation evaluations. Drilling logging technology fills domestic gaps. The acceptance committee unanimously held that the evaluation of the LWD logging system in this formation is stable, the safety, environmental protection and measurement parameters are relatively complete, and its main technical indicators have reached the international advanced level.

Natural Gas Generator

Good Quality Cummins Natural Gas generator Set,


Applied gas:

Natural Gas, Biogas, LPG, Landfill gas, Oil gas, Syngas, Coal mine gas

Acceptable fuel gas pressure: 5~12 kPa CH4 content: for natural gas ≥85% CH4 content:for biogas ≥55%

Gas heat value ≥5500 kcal/Nm3 (23MJ/Nm3 ). Genset output power will increase as the gas heat value increase, if use low heat value gas for fuel (Heat value< 5500 kcal/Nm3, it will lower the power efficiency.

Gas doesn`t include free water or free materials (the size of impurities should be less than 5μm.)

H2S content ≤200 mg/Nm3,NH3 content ≤20 mg/Nm3, Impurities content ≤30 mg/Nm3;size ≤5 μm,Water content ≤40 g/Nm3, no free water.

Standard Scope of Supply:

1. Brand new gas Engine, 90% parts include engine body , crank shaft, cam shaft, piston, cylinder head, etc made by Cummins with best quality

2. Brand new brushless France Leroy Somer alternator

3. Rating: 3 phases 4 lines. 400/230V, 50 HZ , 1500rpm, 0.8PF, IP22-23, Insulation class H

4. Radiator for 40°C/50°C ambient temperature

5. Ignition system adopted USA ALTRONIC

6. Emergency stop mounted

7. Battery,Battery cable and Battery charger

8. Standard tool box

9. Standard Accessory for installation (include bellows,silencer,flange,asbestos pad,Anti-rust water,screw )

10. Gas Train include Regulator valve,Electromagnetic Valve, Fire arrestor,Ball Valve (Chinese brand)

Accessories list

1. Maintenance Operation manual

2. Quality certificate, Gen-sets ex-factory testing report

Optional:

1. Sound-proof canopy 2. CHP system 3. Grid parallel system 4. Remote radiator 5. Auto oil filling system 6. Water heater 7. Oil heater 8. Gas leaking detector 9. Flame detector 10. Gas scrubber

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