Turbodrill, PDC bits spell success in Mobil's statfjord

Journal Article · Fri Oct 01 00:00:00 EDT 1982 · Pet. Eng. Int.; (United States)

OSTI ID:6111549

Turnbull, R W

This paper shows how a turbodrill-PDC-MWD combination has proven effective in reducing overall time to drill a 12 1/4- in. hole section in a North Sea oil field. Rotary drilling with rock bits had resulted in a short sidetrack in the pay zone due to a lost fish and formation faulting. A well-documented lithostratigraphy section for the Statfjord field is presented. Results indicate that for all turbodrill-PDC performances in 12 1/4-in. holes, the longer wells show greater improvements due to reduction in trip times. Further improvements in directional control, operating procedures, and bits are predicted. The paper suggests that the same improvements should be enjoyed if MWD tools are used with rotary assemblies.

• Research Organization: Mobil Exploration Norway Inc., Stavanger, Norway
• OSTI ID: 6111549
• Journal Information: Pet. Eng. Int.; (United States), Vol. 54:12
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
MWD SYSTEMS
OPTIMIZATION
PERFORMANCE
OFFSHORE DRILLING
TURBODRILLS
DIRECTIONAL DRILLING
DRILL BITS
FORMATION DAMAGE
LENGTH
LITHOLOGY
NORTH SEA
OIL FIELDS
OIL WELLS
ROCK DRILLING
ROTARY DRILLING
ROTARY DRILLS
STRATIGRAPHY
TIME MEASUREMENT
ATLANTIC OCEAN
DIMENSIONS
DRILLING
DRILLING EQUIPMENT
DRILLS
EQUIPMENT
GEOLOGIC DEPOSITS
GEOLOGY
MACHINERY
MINERAL RESOURCES
PETROLEUM DEPOSITS
RESOURCES
SEAS
SURFACE WATERS
TURBOMACHINERY
WELLS
020300* - Petroleum- Drilling & Production