Pressure control system and cable guiding device for use in drilling wells
US5188173A · kind A · utility
10Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | May 21, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/072
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cable system for use in completing or logging wells in association with a rig disposed at the surface, comprising: PA1 a pressure control device for counterbalancing the fluid pressure from the well; and PA1 a high pressure chamber through which the cable passes; and PA1 a cable sheave wheel incorporating the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.