Apparatus and method for conveyance and control of a high pressure hose in jet drilling operations
US8167060B2 · kind B2 · utility
8Cited by
7References
33Claims
0Family size
Inventors
Key dates
| Filing date | Sep 3, 2008 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Nov 21, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0035
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A jetting hose is conveyed downhole retracted within a tubing string for jetting lateral boreholes from a main wellbore, is released at the jetting depth and pumped from the tubing string and into a lateral borehole with jetting fluid. A piston is secured to the upper end of the jetting hose, and the pumped jetting fluid drives the piston. A speed control regulates the penetration rate of the jetting hose into the formation independent of the tubing string weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.