Method and apparatus for completing well
US4605067A · kind A · utility
27Cited by
8References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1984 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Mar 26, 2004 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A well drilled with air or gas as a circulating medium traversing pay zones with greater than normal pressures or pressures such that hydrocarbons would permeate drilling fluids and cement is drilled and completed while permitting a continuous flow of hydrocarbons from the well until it is desired to shut the well in at the surface. The intermediate casing string and the production casing string cooperate with the tubing so that the cement for the production string may be positioned without contact with the hydrocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.