Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7290603 | Downhole plug Downhole plug, especially designed for closing an annular conduit in an oil or gas well, under high pressure and temperature. It has two radially expandable ring elements 13, 15, which are arranged on a carrying cylindrical element 32, between two mutu... | 11/06/2007 |
| 7225870 | Hydraulic tools for setting liner top packers and method for cementing liners Embodiments of the present invention relate to hydraulic tools which may be used to set a liner top packer and/or may be used to resist the lifting forces of cementing pack-offs. One embodiment of a tool string for use in wellbore operations comprises a hydraulic an... | 06/05/2007 |
| 7210534 | Lock for a downhole tool with a reset feature The lock allows two members in a downhole tool to be temporarily held together. In an application where mandrel movement is dictated by pressure cycling in combination with a J-slot mechanism, such as in a downhole valve, the mandrel is releaseably retained to an ad... | 05/01/2007 |
| 7124816 | Liquid separation device A device for keeping liquids separate in a pipe, especially for use in a petroleum well, where the device comprises a diaphragm, which in its operative position and through use of pretensioned slats is stretched across the cross section of the pipe, and where each o... | 10/24/2006 |
| 7111677 | Sand control for blanking plug and method of use A blanking plug device, system and method of use, wherein the plug device has an anchoring portion for securing the blanking plug device within a tubing string or other well conduit. In preferred embodiments, the anchoring portion comprises a locking device such as ... | 09/26/2006 |
| 7077214 | Expansion set packer with bias assist A packer element has a biasing member incorporated with it. The element is either fabricated with the biasing element in a relaxed condition and then the element is stretched prior to insertion downhole or the element is created around the stressed biasing member an... | 07/18/2006 |
| 7059410 | Method and system for reducing longitudinal fluid flow around a permeable well A method for reducing longitudinal flow of fluids through an annular space surrounding a permeable well tubular, such as a slotted liner or a sandscreen, in an inflow region of an oil and/or gas production well having: arranging a series of collapsed resilient seali... | 06/13/2006 |
| 7017669 | Methods and apparatus for expanding tubulars The present invention provides methods and apparatus for expanding a first, smaller diameter tubular into frictional contact with a second, larger diameter tubular or wellbore. In an embodiment, annular formations formed on an inner surface of a split ring engage an... | 03/28/2006 |
| 6840328 | Anti-extrusion apparatus and method An apparatus, system, and method useful for discouraging the extrusion of at least one deformable member of a device into a space adjacent to the deformable member when the device is disposed within a borehole and the deformable member extends from the device to the... | 01/11/2005 |
| 6516878 | Downhole tension swivel sub A downhole equipment for use in the gas and oil drilling industry includes a first elongate member arranged in telescopic relation with a second elongate member, the elongate members being moveable relative to one another between a retracted position in w... | 02/11/2003 |
| 5692564 | Horizontal inflation tool selective mandrel locking device A straddle tool is disclosed which ensures sequential setting of the packing elements through the use of lost motion mechanisms. Once the lower pack-off has been set, the upper one is set and an internal valve is opened to allow flow through the tool to a... | 12/02/1997 |
| 5000266 | Hydraulic/torsion packoff installation tool An improved wellhead annulus seal installation tool and preload retention apparatus is disclosed particularly adapted for metal-to-metal seals. The seal installation tool includes a telescoping mandrel with a torsion spring attached and a torque sleeve ro... | 03/19/1991 |
| 4921045 | Slip retention mechanism for subterranean well packer A slip retention mechanism for a packer or hanger for a subterranean well comprises a slip retention sleeve disposed in surrounding relationship to a tubular body on which cone elements are mounted for axial movement. Segment-shaped slips are mounted in t... | 05/01/1990 |
| 4838348 | Well packer brake A well packer brake mechanism includes opposed rings releasably holding brake members in an inward brake released position. The rings are movable away from one another for allowing outward movement of the brake members to their operating position under in... | 06/13/1989 |
| 4836278 | Apparatus for isolating a plurality of vertically spaced perforations in a well conduit A plurality of packing elements are mounted in vertically spaced relationship on a tubing string with the spacing of the elements corresponding generally to the spacing of a plurality of sets of perforations in a well conduit. The lowermost packing unit i... | 06/06/1989 |
| 4750564 | Tubing resettable well packer A tubing string resettable packer is conditioned for initial wireline installation in a well utilizing an adapter within a mandrel carrying the slip assembly of the packer and frangible connecting means between the sealing assembly and mandrel to place th... | 06/14/1988 |
| 4697640 | Apparatus for setting a high temperature packer Apparatus for sealing a well bore annulus. A mandrel includes non-elastomeric packer elements disposed thereabout. A first annular piston is received about the mandrel and is slidable upwardly against the packer elements to seal the same in a well bore. A... | 10/06/1987 |
| 4662453 | Liner screen tieback packer apparatus and method A tieback packer apparatus and method for packing a well annulus above a gravel packed liner screen. The packer includes a body with a mandrel slidingly disposed therein. Originally, the mandrel is shearably pinned to the body. The body includes a lower p... | 05/05/1987 |
| 4657077 | Locking production seal assembly A locking production seal assembly is shown for sealing a well tubing string within the bore of a surrounding well conduit which has been provided with an internal recess. The seal assembly includes a sliding mandrel which is made up in the well tubing st... | 04/14/1987 |
| 4593765 | Tubing resettable well tool A tubing string resettable bridge plug is conditioned for initial wireline installation in a well utilizing an adapter within a mandrel carrying the slip assembly of the bridge plug and frangible connecting means between the sealing assembly and mandrel t... | 06/10/1986 |
| 4482014 | Barrier tool for polished bore receptacle The present invention relates to a method and apparatus for providing a sliding seal at the upper end of a polished bore receptacle in a wellbore to permit reciprocation of tubing string and to prevent the accumulation of debris in an annulus between a tu... | 11/13/1984 |
| 4478279 | Retrievable inside blowout preventer valve apparatus A retrievable inside blowout preventer valve apparatus for use in blocking undesired upwardly flow in the bore of a rotary drill string during well drilling operations is disclosed. The valve apparatus is installed and retrieved from a subsurface receiver... | 10/23/1984 |
| 4429742 | Tubular alignment assembly Hollow tubular members used as piling to support offshore platforms and the like are more easily aligned with a stabbing means. The base of the stabbing means is flexibly attached to the inner surface of one end of a tubular member; the tip of the stabbin... | 02/07/1984 |
| 4411435 | Seal assembly with energizing mechanism A seal assembly for downhole use in a subterranean well comprises inner and outer concentric annular sealing elements adapted to seal between an inner mandrel and an outer housing. The sealing elements are mounted in concentric annular recesses defined in... | 10/25/1983 |
| 4315544 | Locking device for landing within a well conduit An improvement is provided in an apparatus which is adaptable to be run within a subterranean well for the setting and locking of a locking module within the profile of a complimentary landing nipple carried on a conduit within the subterranean well. The ... | 02/16/1982 |
| 4134452 | Well testing tool A tool for testing conditions at a specific depth in a well is run into the well on a wire line. The tool includes a stem having sealing rings around its outer surface adapted to seal against the inner wall of a locking assembly mounted on the lower end o... | 01/16/1979 |
| 4044827 | Apparatus for treating wells A method and apparatus for incrementally treating a section of an earth formation around a well to improve fluid flow into the well. The method includes the steps of installing a well casing provided with spaced landing nipples, perforating and treating a... | 08/30/1977 |
| 4003434 | Method and apparatus for running, operating, and retrieving subsea well equipment A method and apparatus for running, operating, and retrieving packoffs, bowl protectors, casing heads, casing hangers, and other well tools employed in drilling and completing subsea wells. Broadly considered, the method involves running the well tool and... | 01/18/1977 |
