Method for estimating the probability of collision between wells
US8447522B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2009 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Jun 16, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/09
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for drilling a well, the method including: identifying another well proximate to the well being drilled; collecting spatial information for at least a portion of the another well and the well being drilled; estimating a trajectory for at least a portion of the well being drilled and the another well; estimating an uncertainty in spatial information for each trajectory; estimating a probability of a collision with the another well during the drilling of the well by integrating a probability density function using the uncertainties and the trajectories; and performing the drilling in a manner that limits the probability of collision. A system and another method are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.