Modifications to and experience with air-percussion drilling
- Shell Canada Ltd. (CA)
The author reports experience gained in the air-percussion drilling of 48 wells since Fall 1983. The industrial hammer was used predominantly, but the older oilfield hammer was used occasionally. A total of 117 solid-head bits were run. Experiences with the industrial percussion hammer indicated that tool modifications were required to reduce hole spiraling and the tendency of bits to go undergauge. High penetration rates (ROP's) with the new hammer required excessive blowing on connections, leading to the modification of a computer program for air-volume requirements. Because minor equipment failures were causing lost time. modifications were made to the jet system, sample catcher, and downhole floats.
- OSTI ID:
- 7263254
- Journal Information:
- SPE (Society of Petroleum Engineers) Drilling Engineering; (USA), Journal Name: SPE (Society of Petroleum Engineers) Drilling Engineering; (USA) Vol. 4:4; ISSN 0885-9744; ISSN SDENE
- Country of Publication:
- United States
- Language:
- English
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47 OTHER INSTRUMENTATION
CANADA
COMPUTER CODES
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLS
EQUIPMENT
GEOLOGIC DEPOSITS
JET DRILLS
MINERAL RESOURCES
MODIFICATIONS
NORTH AMERICA
OIL FIELDS
PETROLEUM DEPOSITS
RESOURCES
WELL DRILLING