Apparatus, system, and method for determining injected fluid vertical placement
US8230915B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2007 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Oct 2, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/135
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus, system, and method are provided for determining injected fluid vertical placement in a formation. The apparatus includes a borehole drilled through a formation, and an injection conduit within the borehole. In one embodiment, the apparatus includes a fiber optic cable within the borehole wrapped helically around the injection conduit such that the fiber optic cable reads temperatures at specific depths and radial angles throughout the borehole. The apparatus includes a thermal insulation layer interposed between the injection conduit and the fiber optic cable such that the fiber optic cable detects the formation temperature rather than the injection conduit temperature. The apparatus includes a computer programmed to determine the vertical placement of the injected fluid within the formation based on the temperature readings. The apparatus detects an induced hydraulic fracture height, and detects whether an induced hydraulic fracture has deviated from the plane of the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.