Current status and future trends of jet-bit drilling in China
Three levels in the development of jet-bit drilling in China are discussed, showing significant economic results for each higher pump-pressure level. Drilling practice in China has shown that there is still much room for a further increase of pump pressure and specific hydraulic horsepower. The development of jet-bit drilling is the main direction in upgrading drilling techniques in the near future. Laboratory studies have proved significant rock-cutting action by the combination of hydraulic and mechanical power. Bit hydraulics can do much more than bottomhole cleaning, and hydraulic parameters can be selected beyond the range of the Fullerton chart or the Amoco hydraulic drillability curve. More attention should be paid to rock-cutting by hydraulic power. The bit-weight/rotary-speed selection and mud performance should be optimized, along with the best use of hydraulic power. This approach should be followed as long as it results in a higher drilling rate and lower cost.
- Research Organization:
- Dept. of Drilling, Ministry of Petroleum Industry
- OSTI ID:
- 5213374
- Journal Information:
- SPE (Society of Petroleum Engineers) Drill. Eng.; (United States), Journal Name: SPE (Society of Petroleum Engineers) Drill. Eng.; (United States) Vol. 1:4; ISSN SDENE
- Country of Publication:
- United States
- Language:
- English
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BENCH-SCALE EXPERIMENTS
CHINA
COST
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLING FLUIDS
DRILLS
EFFICIENCY
EQUIPMENT
FLUID MECHANICS
FLUIDS
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HYDRAULICS
JET DRILLS
MECHANICAL EFFICIENCY
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MINERAL RESOURCES
MOTION
NATURAL GAS DEPOSITS
NATURAL GAS WELLS
OIL WELLS
OPTIMIZATION
PERFORMANCE
PETROLEUM DEPOSITS
PRESSURE DEPENDENCE
PUMPS
RESOURCES
ROCK DRILLING
ROTATION
VELOCITY
WEIGHT
WELL DRILLING
WELLS