LWD borehole images/dips aid offshore California evaluation
Journal Article
·
· World Oil
OSTI ID:242231
- Schlumberger Wireline and Testing, Montrouge (France)
Quantitative, fullbore, azimuthal resistivity images of the borehole wall, acquired while drilling, can reveal large-scale structural bedding, fractures, faults, unconformities and other useful geologic events. While these images cannot resolve fine structural features or stratigraphic details, they can help identify those intervals requiring higher resolution wireline logging after drilling, and can be used to calculate general structural dips prior to wireline image/dipmeter runs. These images and dips have proven useful for time-critical drilling decisions and for subsequent geological interpretation and formation evaluation. This article presents discussions on: data acquisition at the bit with the Resistivity-at-the-Bit (RAB) tool, including tool functions and depth control, specific benefits derived from while-drilling resistivity images in two offshore California wells, and a favorable RAB outlook including a new RAB method for calculating high angle dips.
- OSTI ID:
- 242231
- Journal Information:
- World Oil, Journal Name: World Oil Journal Issue: 4 Vol. 217; ISSN 0043-8790; ISSN WOOIAS
- Country of Publication:
- United States
- Language:
- English
Similar Records
Formation evaluation and geological interpretation from the resistivity-at-the-bit tool
Interpretation of structural and stratigraphic features with steep dips
Multi-well subsurface study of the stratigraphic sequence of the Potter Formation in the Midway-Sunset Field, Kern County, California
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:207259
Interpretation of structural and stratigraphic features with steep dips
Conference
·
Tue May 01 00:00:00 EDT 1990
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
·
OSTI ID:6699867
Multi-well subsurface study of the stratigraphic sequence of the Potter Formation in the Midway-Sunset Field, Kern County, California
Conference
·
Mon Dec 30 23:00:00 EST 1996
·
OSTI ID:427015