Logging horizontal wells. Field practice for various techniques
- Elf Aquitaine, Pau (FR)
- Franlab (FR)
With the development of highly deviated and horizontal wells, new techniques for running logging tools have been developed, in addition to the wireline method, for conveying logging tools in wells. Five techniques are now operational: the wireline method, the measurement-while-drilling (MWD) method, the information and measuring systems in horizontal wells (Simphor/sup TM/) method, the pumpdown stinger method, and the coiled-tubing method. Logging by wireline is naturally restricted to well inclinations up to 65/sup 0/. Because they use drillpipes, Simphor and MWD techniques are theoretically capable of covering all conventionally drilled wells, whatever their deviation or horizontal development. With the use of a telescopic stinger, only small-diameter or production tools can be used. The relative fragility of coiled tubing limits its use to deviated wells with standard tools and to short horizontal drainholes with lighter tools. The last two methods offer the advantage of being operable without a drilling rig. In addition to horizontal wells, these methods naturally lend themselves to all highly deviated or difficult wells where wireline working is not possible, thus adapting to a wide range of applications.
- OSTI ID:
- 6775290
- Journal Information:
- J. Pet. Technol.; (United States), Journal Name: J. Pet. Technol.; (United States) Vol. 40:10; ISSN JPTJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
DESIGN
DIRECTIONAL DRILLING
DRILLING
DRILLING RIGS
EQUIPMENT
FIELD PRODUCTION EQUIPMENT
FIELD TESTS
GEOLOGIC DEPOSITS
GEOLOGIC STRATA
GEOLOGIC STRUCTURES
HORIZONTAL INTEGRATION
INCLINED STRATA
MINERAL RESOURCES
OIL FIELDS
PETROLEUM DEPOSITS
RESOURCES
TESTING
WELL LOGGING
WELL RECOVERY EQUIPMENT