Inventor
VANN ROY R
US38 patents
⚠️ This page may combine multiple inventors who share the name “VANN ROY R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VANN INC GEO
14 patentsUS4445574AMay 1, 1984
Continuous borehole formed horizontally through a hydrocarbon producing formation
VANN INC GEO251 citations99
US4598775AJul 8, 1986
Perforating gun charge carrier improvements
VANN INC GEO154 citations98
US4499951AFeb 19, 1985
Ball switch device and method
VANN INC GEO75 citations96
US4299287ANov 10, 1981
Bar actuated vent assembly and perforating gun
VANN INC GEO56 citations95
US4484632ANov 27, 1984
Well completion method and apparatus
VANN INC GEO52 citations93
US4480690ANov 6, 1984
Accelerated downhole pressure testing
VANN INC GEO45 citations93
US4564076AJan 14, 1986
Well completion method and apparatus
VANN INC GEO36 citations92
US4434854AMar 6, 1984
Pressure actuated vent assembly for slanted wellbores
VANN INC GEO51 citations91
US4330039AMay 18, 1982
Pressure actuated vent assembly for slanted wellbores
VANN INC GEO55 citations91
US4512406AApr 23, 1985
Bar actuated vent assembly
VANN INC GEO42 citations89
US4436154AMar 13, 1984
Method for controlling subsurface blowout
VANN INC GEO25 citations82
US4334580AJun 15, 1982
Continuous borehole formed horizontally through a hydrocarbon producing formation
VANN INC GEO27 citations82
US4598771AJul 8, 1986
Method and apparatus for firing a perforating gun and simultaneously recording the downhole pressure
VANN INC GEO9 citations74
US4554975ANov 26, 1985
Hold down apparatus for wireline operated gun
VANN INC GEO19 citations74
VANN ROY RANDELL
7 patentsUS4125159ANov 14, 1978
Method and apparatus for isolating and treating subsurface stratas
VANN ROY RANDELL252 citations99
US4066282AJan 3, 1978
Positive tubing release coupling
VANN ROY RANDELL32 citations92
US4078611AMar 14, 1978
High temperature perforating method
VANN ROY RANDELL20 citations82
US3966236AJun 29, 1976
Releasable coupling
VANN ROY RANDELL30 citations82
US4040482AAug 9, 1977
Optional fire and release tool and method
VANN ROY RANDELL15 citations74
US4009757AMar 1, 1977
Sand consolidation method
VANN ROY RANDELL12 citations74
US3990507ANov 9, 1976
High temperature perforating apparatus
VANN ROY RANDELL17 citations74
(unassigned)
5 patentsUS6382244B2May 7, 2002
Reciprocating pump standing head valve
62 citations96
US6497281B2Dec 24, 2002
Cable actuated downhole smart pump
52 citations93
US6666270B2Dec 23, 2003
Reciprocating pump vent-dump valve and methods of use
11 citations74
US6857477B2Feb 22, 2005
Method for using a reciprocating pump vent-dump valve
1 citations52
US6672393B2Jan 6, 2004
Reciprocating pump dump valve and methods of use
1 citations52
HALLIBURTON CO
3 patentsUS4612992ASep 23, 1986
Single trip completion of spaced formations
HALLIBURTON CO62 citations96
US4749039AJun 7, 1988
Gun firing system using fluid filled pressure balance tubing
HALLIBURTON CO5 citations60
US4635733AJan 13, 1987
Gun firing system using fluid filled pressure balance tubing
HALLIBURTON CO3 citations60