Ronald K. Churchman

Person

Dallas, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Metal-to-metal sliding side door for wells
- Patent number 5,794,699
- Issue date Aug 18, 1998
- Halliburton Energy Services, Inc.
- Robert C. Hammett
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pumpdown toolstring operations in horizontal or high-deviation oil...
- Patent number 5,163,515
- Issue date Nov 17, 1992
- Den Norske Stats Oljeselskap A.S.
- Roger Tailby
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for producing wells
- Patent number 5,044,443
- Issue date Sep 3, 1991
- Otis Engineering Corporation
- Ronald K. Churchman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Annular safety system for gas lift production
- Patent number 5,022,427
- Issue date Jun 11, 1991
- Otis Engineering Corporation
- Ronald K. Churchman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gas storage well safety system and method
- Patent number 4,842,074
- Issue date Jun 27, 1989
- Otis Engineering Corporation
- Craig D. Hines
- E21 - EARTH DRILLING MINING
Information Patent Grant
Surface controlled subsurface safety valve
- Patent number 4,723,606
- Issue date Feb 9, 1988
- Otis Engineering Corporation
- Michael B. Vinzant
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well equipment setting or retrieval tool
- Patent number 4,375,237
- Issue date Mar 1, 1983
- Otis Engineering Corporation
- Ronald K. Churchman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill string safety and kill valve
- Patent number 4,291,722
- Issue date Sep 29, 1981
- Otis Engineering Corporation
- Ronald K. Churchman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for recovering viscous petroleum from tar sand
- Patent number 4,248,302
- Issue date Feb 3, 1981
- Otis Engineering Corporation
- Ronald K. Churchman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Circumferential centralizer
- Patent number 4,039,027
- Issue date Aug 2, 1977
- Otis Engineering Corporation
- Ronald K. Churchman
- E21 - EARTH DRILLING MINING

Ronald K. Churchman

Person

Patents Grantslast 30 patents

Metal-to-metal sliding side door for wells

Pumpdown toolstring operations in horizontal or high-deviation oil...

Method and apparatus for producing wells

Annular safety system for gas lift production

Gas storage well safety system and method

Surface controlled subsurface safety valve

Well equipment setting or retrieval tool

Drill string safety and kill valve

Method and apparatus for recovering viscous petroleum from tar sand

Circumferential centralizer