1
David D Szarka, Bob L Sullaway, John T Brandell, Steven L Schwegman: Well completions using casing valves. Halliburton Company, James R Duzan, L Wayne Beavers, August 21, 1990: US04949788 (162 worldwide citation)

A well is completed by cementing a casing string in place in the well. A jetting tool assembly is run into the casing string on a tubing string. The jetting tool assembly engages a sliding sleeve of a casing valve and slides the sliding sleeve to an open position uncovering a plurality of housing po ...


2
Bob L Sullaway: EZ disposal packer. Halliburton Company, John H Tregoning, James R Duzan, May 1, 1979: US04151875 (83 worldwide citation)

Packer for use in the disposal of abrasive fluids and well debris from a well drilling operation comprising: a packer mandrel; an upper slip support slidable on the packer mandrel; an upper slip wedge installed on the packer mandrel; a first plurality of slips; an elastomeric packer assembly install ...


3
John T Brandell, David D Szarka, Bob L Sullaway: Casing valve. Halliburton Company, James R Duzan, L Wayne Beavers, February 12, 1991: US04991654 (72 worldwide citation)

A casing valve includes an outer housing with a sliding sleeve. First and second seals define a sealed annulus within the housing. A latch is disposed in the sealed annulus for latching the sliding sleeve in its first and second positions. The housing has a plurality of housing ports defined therein ...


4
Morris G Baldridge, Bob L Sullaway: Super seal valve with mechanically retained seal. Halliburton Company, James R Duzan, November 25, 1986: US04624316 (49 worldwide citation)

A valve seal assembly for use in well cementing equipment in well cementing operations and the like having an elastomeric seal positively, mechanically retained on the valve body head so that movement of the elastomeric seal on the valve body stem and with respect to the valve body head is prevented ...


5
Steven G Streich, Lloyd C Knox, Bob L Sullaway: Retrievable plug for offshore platforms having shear type retaining means. Halliburton Company, James R Duzan, John H Tregoning, January 22, 1980: US04184515 (18 worldwide citation)

A reusable plug for sealing the conductor pipe of offshore platforms comprising a cylindrical housing, central body member and pressure equalization means.


6
Bob L Sullaway, Lloyd C Knox: Breech block connector. Halliburton Company, John H Tregoning, James R Duzan, August 28, 1979: US04165891 (10 worldwide citation)

A breech block connector for use in securing wash pipe sections together comprising sleeve means, pin means, box assembly means and locking means.


7
Bob L Sullaway, Harold O Treece: Inflatable grout seal. Halliburton Company, John H Tregoning, James R Duzan, June 29, 1982: US04337010 (9 worldwide citation)

An inflatable packer for use on an offshore platform to seal the annulus between the jacket leg or pile sleeve and a pile driven therethrough, the inflatable packer comprising a packer housing, a first guide ring, a second guide ring, an annular inflatable packer member having an annular reinforcing ...


8
Bob L Sullaway, Lloyd C Knox, Gary D Zunkel: Remote fluid transfer system and method for sub-sea baseplates and templates. Halliburton Company, James R Duzan, December 6, 1988: US04789271 (8 worldwide citation)

A simple, easily manipulated remote fluid transfer system comprising a pump, grout pipe string, a manipulation device, guide sleeve, and a remote video display device.


9
Lloyd C Knox, Bob L Sullaway: Inflation and grout system. Halliburton Company, John H Tregoning, James R Duzan, June 30, 1981: US04275974 (8 worldwide citation)

A system for inflating packers installed in offshore platforms and grouting the annuli between the piles and either the jacket legs and/or pile sleeves utilizing a separate inflation line system for the packers and a separate grouting line system for grouting the annuli.


10
Bob L Sullaway: Leg closure. Halliburton Company, James R Duzan, John H Tregoning, September 2, 1980: US04220422 (7 worldwide citation)

A diaphragm for closing the bore of a tubular piling guide member and/or supporting leg member of a marine platform or similar structure, the diaphragm comprising reinforced elastic material wrapped around and bonded to a plurality of reinforcing members in the diaphragm with the diaphragm being pos ...