Apparatus and method for controlling the feed-in speed of a high pressure hose in jet drilling operations
US8590637B2 · kind B2 · utility
4Cited by
4References
20Claims
0Family size
Inventors
Key dates
| Filing date | Aug 3, 2009 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Apr 26, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A jetting hose is conveyed downhole retracted on the end of a tubing string (coiled tubing) for jetting lateral boreholes from a main wellbore. The apparatus allows the operator to sense the speed at which the jetting hose and nozzle are penetrating the formation and adjust the coiled tubing feed-in rate accordingly, optimizing both the direction and length of the lateral borehole relative to the main wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.