Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7422058 | Reinforced open-hole zonal isolation packer and method of use A packer device and methods of use for a packer within uncased wellbore to form a complete fluid seal. The packer device includes a central mandrel body that retains a plurality of nested, telescopic expanding elements that are moveable outwardly from the mandrel bo... | 09/09/2008 |
| 7259688 | Wireless reservoir production control A reservoir production control system includes a plurality of wells for producing a reservoir linked to a central computer over a downhole communication network and a surface communication network. Both the downhole and the surface communication networks are wireles... | 08/21/2007 |
| 7216720 | Multi-string production packer and method of using the same A production packer comprising a packer body, a flat plate, a sealing element, production tubing, water overflow tubing, gas vent tubing, pump cable pack-off tubing, and an optional pressure transducer port. The flat plate is welded onto the top of the packer body. ... | 05/15/2007 |
| 7170424 | Oil well casting electrical power pick-off points A power supply apparatus is provided for supplying power and communications within a first piping structure. An external power transfer device is positioned around the first piping structure and is magnetically coupled to an internal power transfer device. The inter... | 01/30/2007 |
| 7114561 | Wireless communication using well casing A petroleum well having a borehole extending into a formation is provided. A piping structure is positioned within the borehole, and an induction choke is positioned around the piping structure downhole. A communication system is provided along the piping structure ... | 10/03/2006 |
| 7075454 | Power generation using batteries with reconfigurable discharge A petroleum well for producing petroleum products that incorporates a system adapted to provide power to a downhole device in the well. The system includes a current impedance device and a downhole power storage device. The current impedance device is positioned suc... | 07/11/2006 |
| 7055592 | Toroidal choke inductor for wireless communication and control An induction choke in a petroleum well where a voltage potential is developed across the choke to power and communicate with devices and sensors in the well. Preferably, the induction choke is a ferromagnetic material and acts as an impedance to a time-varying curre... | 06/06/2006 |
| 6892820 | Modular retrievable packer A packer that is usable with a subterranean well includes an assembly to circumscribe one out of multiple tubular arrays that are inserted through the packer. The packer also includes a member that is separable from the assembly to configure the assembly for connect... | 05/17/2005 |
| 6814144 | Well treating process and system A method for the treatment of a subterranean formation penetrated by a well in which, first and second flow paths are established from the wellhead into the vicinity of the formation. A plugging fluid comprising a suspension of a particulate plugging agent in a carr... | 11/09/2004 |
| 6220351 | System to lower the depth equipment in hydrocarbons wells A sliding link or connection apparatus for use in lowering an auxiliary conduit or other equipment into a well casing alongside a production pipe is of predetermined shape and dimensions different from, and smaller than, the shape and dimensions of the we... | 04/24/2001 |
| 5425418 | Multiple-completion packer and locking element therefor The invention relates to a multi-bore packer that has an annularly shaped sealing element. The assembly has a series of strings that run continuously so that they can be supported from the surface. At least one hub segment straddles the strings and is sea... | 06/20/1995 |
| 5129454 | Multi-string packers A multi-string packer for anchoring two or more non-concentric through tubes inside a larger pipe or casing (e.g. in an oil well). The packer can be deployed downhole, set, unset, and reset at least once without being withdrawn to the surface, despite the... | 07/14/1992 |
| 4930573 | Dual hydraulic set packer A dual string packer for releasable, hydraulic setting within a wall casing is disclosed. The packing seal elements and hydraulic actuator assembly are mounted for sliding movement along primary and secondary packer mandrels. Setting forces are applied to... | 06/05/1990 |
| 4852649 | Packer seal means and method An improved seal element especially for well packers having multiple mandrels, the improvement providing slits therein of various configurations which allow the seal element to be expanded to sealing condition in response to longitudinal compression such ... | 08/01/1989 |
| 4749036 | Dual bore well treating tool A dual bore well treating tool having a pressure operated valve therein that is useful in conjunction with a dual bore packer and with a dual bore on and off or connection tool. One of the bores through the on/off tool, the treating tool and the packer is... | 06/07/1988 |
| 4726422 | Annular safety assembly for an oil well, especially a double production zone well An annular safety assembly comprising, between an upper cylindrical body and a lower cylindrical body, through which connecting tubes of production tubes pass, a packer and a low-bulk anchorage system consisting of a radial spacing ring, a resilient ancho... | 02/23/1988 |
| 4637460 | Parallel flow tube apparatus A parallel flow tube assembly for producing or treating formations in a well bore wherein the formations are isolated by upper and lower spaced packers. The parallel flow tube assembly includes a coupling member having parallel bores therein. A seal sleev... | 01/20/1987 |
| 4508166 | Subsurface safety system Disclosed are a subsurface safety system and a method of inserting into or removing from an offset bore of a mandrel a tubular valve. The system includes an entry mandrel having a full bore outlet, a full bore primary inlet and a laterally offset full bor... | 04/02/1985 |
| 4420044 | Flow control system A control valve for a passageway in which the valve is reciprocated toward and away from its seat by pressure within a pressure dome and pressure exteriorly of the valve housing and in which reciprocation is controlled by a J-slot capable of latching the ... | 12/13/1983 |
| 4373584 | Single trip tubing hanger assembly An apparatus is provided for producing a well from at least one productive zone penetrated by the well bore in which casing is set below the top of the well. Tubing hanger means support at least one production tubing string extending downwardly in the wel... | 02/15/1983 |
| 4345647 | Apparatus to increase oil well flow A method of improving the rate of extraction of oil bearing liquid from an oil well comprising the steps of providing a sump in the well casing below the openings through the casing communicating with the oil bearing formation so that the oil bearing liqu... | 08/24/1982 |
| 4248307 | Latch assembly and method The present invention provides a latch assembly carriable on a tubing string extendible into a subterranean well, the latch assembly being selectively engageable between upper and lower sections of the tubing string. The latch assembly comprises an outer ... | 02/03/1981 |
| 4236734 | Well tubing coupling system A well bore tubing system for releasably coupling upper tubing strings with lower tubing strings. The system includes an orienting body connectible on the upper end of a well packer and having a pair of separate laterally spaced longitudinal bores, each h... | 12/02/1980 |
| 4098334 | Dual string tubing hanger A hanger for supporting dual tubing strings in a well casing from hanger mandrels which can swivel to facilitate threadedly connecting each mandrel to its associated tubing string. The hanger includes an orienting sleeve for receiving safety shut-off valv... | 07/04/1978 |
| 4098335 | Dual string tubing hanger and running and setting tool therefor A hanger for supporting dual tubing strings in a well casing from hanger mandrels which can swivel to facilitate threadedly connecting each mandrel to its associated tubing string. The hanger includes an orienting sleeve for receiving safety shut-off valv... | 07/04/1978 |
| 4067385 | Apparatus and method for connecting a tubing string to downhole well equipment Apparatus is disclosed for tieing at least one tubing string suspended in a well pipe from a subsea non-rotatable christmas tree located on the sea floor to a downhole hanger affixed to the well pipe. The tubing string has a tie-back tool arranged on its ... | 01/10/1978 |
| 4056145 | Hydraulic holddown for well packer stinger Hydraulic locking means is provided in a dual stinger latching mechanism which hydraulic locking means secures tubular conduit within the packer latching mechanism against pressure below the packer tending to pump the conduit out. The hydraulic locking me... | 11/01/1977 |
| 4022274 | Multiple string well packer A versatile multistring mechanically actuated well packer featuring compression or tension set utilizes unitary tubular anchor means and compressible elastomeric packer elements, with a tension-shearable emergency release.... | 05/10/1977 |
| 3934648 | Well tubing system with orienting coupling means A well tubing system for releasably coupling lower tubing strings with upper tubing strings in a well bore without rotation from the surface including a well packer on a plurality of lower tubing strings, a first flow coupling and guide sleeve on the uppe... | 01/27/1976 |
