Method for determining drilling conditions comprising a drilling model
US5730234A · kind A · utility
96Cited by
8References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 1996 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | May 14, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for the improvement of performances involves a drilling model wherein the model takes account of the effects of the destruction of a rock (2) by a cutter (1) fastened to a bit body (3) driven in rotation and the effects of the removal of rock cuttings by a fluid, by calculating a material balance from the production of cuttings by the cutter that has penetrated the rock by a depth .delta., a bed of cutting of thickness l, a fluid strip of thickness h between the bed of cuttings and body (3), the fluid strip having a cuttings concentration c.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.