Record-setting wells chosen to test new production log measurements
Journal Article
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· Petroleum Engineer International
OSTI ID:390310
The advent of horizontal drilling has presented new technical challenges and opportunities. Not the least of these is production optimization, an ambitious objective demanding precise well evaluation. Off to a good start, BP and Schlumberger have collaborated to develop a new through-tubing production logging string that accurately diagnoses biphasic flow in extended reach horizontal wells. BP and Schlumberger undertook the ambitious long-term goal of being able to accurately measure triphasic flow in horizontal and near-horizontal wells in uncemented liners. The technology is being developed under the name Flagship project and involves several concurrent engineering tasks. An immediate objective was to diagnose and treat water production in BP`s extended reach wells drilled at Wytch Farm on the south coast of England. The Wytch Farm wells consistently break extended reach drilling records, the most recent having a horizontal displacement of 26,361 ft (8,035 m). The first step was to assemble a toolstring that would measure biphasic (oil/water) flow in a cemented liner. The paper describes the tool string configurations, log presentation and interpretation, and coiled tubing deployment.
- OSTI ID:
- 390310
- Journal Information:
- Petroleum Engineer International, Journal Name: Petroleum Engineer International Journal Issue: 7 Vol. 69; ISSN 0164-8322; ISSN PEEID4
- Country of Publication:
- United States
- Language:
- English
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