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| Number | Title | Issue Date |
| 7383887 | Method for rapid installation of a smaller diameter pressure control device usable on blow out preventers The method for rapid installation of smaller diameter pressure control device usable on blow out preventors, by installing a threaded profile flange with a bell nipple upon a BOP, installing a test plug in the base of the BOP or base of a stack of BOPs, installing a... | 06/10/2008 |
| 7267179 | Method for rapid installation of a smaller diameter pressure control device usable on blow out preventers The method for rapid installation of a smaller diameter pressure control device usable on an annular BOP or any type of BOP. The step are first installing a flange with a threaded profile upon an annular BOP. Next, install a bell nipple on the flange, then install a... | 09/11/2007 |
| 7108058 | Packing assembly for rotary drilling swivels and pumps having rotating shafts A packing assembly for use with a rotary drilling swivel having a cylindrical wash pipe comprising a housing assembly including a packing gland forming a sealing assembly chamber around the wash pipe, the packing gland including an injection port in open communicati... | 09/19/2006 |
| 7044217 | Stuffing box for progressing cavity pump drive Progressive cavity (PC) pump drive heads require a stuffing box to seal crude oil from leaking onto the ground where the polish rod passes from the crude oil passage in the wellhead to the drive head. Because crude oil typically contains fine sand particles, alignme... | 05/16/2006 |
| 6505691 | Subsea mud pump and control system The invention is a subsea pump that includes pumping elements, each pumping element including a pressure vessel with a first and a second chamber therein and a separating member disposed between the first and second chambers. The first and second chambers... | 01/14/2003 |
| 5927403 | Apparatus for increasing the flow of production stimulation fluids through a wellhead An apparatus for increasing the transfer rate of production stimulation fluids through a wellhead of a hydrocarbon well is disclosed. The apparatus includes a mandrel for a wellhead isolation tool and a tubing hanger for use in conjunction with the mandre... | 07/27/1999 |
| 5509477 | Borehole ventilation sealcover A simple bore hole plug for either temporarily or permanently sealing mine bore holes and ventilating shafts or the like is described. A plurality of used motor vehicle tires are arranged one upon the other coaxially in increasing order of diameter. Steel... | 04/23/1996 |
| 5289884 | Well pumping Method and apparatus for sucker rod pumping in a wellbore using, in lieu of a stuffing box, first and second seal members connected by a length of compressible hose, the first seal member adapted to seal with the wellhead in a liquid and vapor tight manne... | 03/01/1994 |
| 4694910 | Packing tube assembly for pumping wells A packing tube assembly which can easily be substituted for the conventional stuffing box on typical pumping wells to substantially increase the operational life of the packing involved. The assembly includes a mounting bushing for the packing tube having... | 09/22/1987 |
| 4390063 | Geothermal wellhead packing assembly A geothermal wellhead assembly (22) has a casing head (26). An inner casing (12) within the casing head has a restrained lower end portion and an unrestrained upper end portion extending above the casing head. An expansion spool (28) is mounted on the upp... | 06/28/1983 |
| 4379556 | Stripping gland for multicables with connector A stuffing box for a pressurized well where plural cables are attached end to end, and the connector has a larger diameter than either of the cables. The stuffing box structure is a combination that includes a housing for the connector and a packing gland... | 04/12/1983 |
| 4099571 | Down hold packing gland and method for long stroke pumper A packing gland is positioned down within an oil well hole and is held in place by elastomeric sealing and locking devices which are actuated from above the hole through a torque tube. Rotation of the torque tube in one direction lowers the tube axially r... | 07/11/1978 |
| 4060249 | Rod packing A rod packing for stripping oil from a string of sucker rods as they are removed from the oil well, and including a pair of interfitting semicylindrical packing halves joinable to each other at a diametrical plane by pairs of mating protuberances and sock... | 11/29/1977 |
