Method and system for hydraulic fracture diagnosis with the use of a coiled tubing dual isolation service tool
US9708906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2014 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Jul 14, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic fracture diagnostic system for reservoir evaluation of a high angle wellbore includes coiled tubing that extends from the surface to a wellbore location. The system includes a sensor and a pump connected to the coiled tubing and a pump and sensor connected to an annulus between the coiled tubing and the wellbore casing. A tool having at least two packing elements and a port positioned between the packing elements is connected to the coiled tubing and is positioned adjacent a fracture. The packing elements isolate the fracture and the port is configured to provide communication with the isolated portion of the wellbore. A diagnostic method includes pumping a volume of fluid into the isolated portion of a wellbore and monitoring the pressure within the annulus via the coiled tubing. The tool may also be used in an openhole portion of a wellbore to diagnose the formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.