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Apparatus and measuring stress in a subterranean formation
US8978461B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8978461-B2 |
| Application number | US-200913392301-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 31, 2009 |
| Priority date | Aug 31, 2009 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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A method and apparatus for determining a stress field in a subterranean formation include deploying a stress measurement tool on a tubular string, opening at least three fractures in three different radial directions in the subterranean formation, and closing the at least three fractures. The at least three fractures are reopened while measuring stress and strain conditions. From the reopening, a tangential stress component for each of the at least three fractures is determined. From the tangential stress components and radial directions of the at least three fractures, the stress field of the subterranean formation is determined.
First claim
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What is claimed is: 1. A method of determining a stress field in a subterranean formation, comprising: deploying a stress measurement tool on a tubular string; opening at least three fractures in three different radial directions in the subterranean formation; closing the at least three fractures; reopening the at least three fractures while measuring stress and strain conditions; from the reopening, determining a tangential stress component for each of the at least three f…
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- E21B49/006Primary
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
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- What does patent US8978461B2 cover?
- A method and apparatus for determining a stress field in a subterranean formation include deploying a stress measurement tool on a tubular string, opening at least three fractures in three different radial directions in the subterranean formation, and closing the at least three fractures. The at least three fractures are reopened while measuring stress and strain conditions. From the reopening,…
- Who is the assignee on this patent?
- Li Gang, Williams Kenneth E, Halliburton Energy Serv Inc
- What technology area does this patent fall under?
- Primary CPC classification E21B49/006. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).