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| Number | Title | Issue Date |
| 8181698 | Multi-function multi-hole drilling rig A multi-function multi-hole rig including multiple machines for accomplishing various rig functions, e.g., drilling machine(s), tripping machine(s), casing machine(s), cementing machine(s), workover machine(s), etc., for drilling, completing and/or working over mult... | 05/22/2012 |
| 8181697 | Multi-function multi-hole drilling rig A multi-function multi-hole rig is disclosed which, in certain aspects, includes multiple machines for accomplishing rig functions, e.g. drilling machine(s), tripping machine(s), casing machine(s), and/or cementing machine(s), for producing multiple usable wellbores... | 05/22/2012 |
| 7426959 | Systems and methods for producing oil and/or gas A system including a mechanism for recovering oil and/or gas from an underground formation, the oil and/or gas comprising one or more sulfur compounds; a mechanism for converting at least a portion of the sulfur compounds from the recovered oil and/or gas into a car... | 09/23/2008 |
| 7360595 | Method and system for underground treatment of materials A method for underground treatment of subsurface materials comprises providing an injection pattern and a recovery pattern, the injection pattern and the recovery pattern located proximate to a subsurface treatment zone and at least one of the injection pattern and ... | 04/22/2008 |
| 7331387 | Downhole window finder and method of using the same The present invention relates to a downhole method and apparatus for locating a window in a wellbore casing and determining the depth and orientation of said window. Apparatus of the present invention comprises a body (4) and a window engaging member (6 | 02/19/2008 |
| 7299879 | Thermodynamic pulse lift oil and gas recovery system An apparatus and process for lifting production fluids using the heat of compression of production gas to heat injection liquids. An apparatus and process for uninterrupted production using conserved heat of compression during well maintenance. A lift gas apparatus ... | 11/27/2007 |
| 7284614 | Wellbore system for simultaneous drilling and production A wellbore system for simultaneously drilling a wellbore into an earth formation and producing hydrocarbon fluid from the wellbore, is provided. The system comprises a production tubing extending into the wellbore and having a hydrocarbon fluid inlet arranged in a f... | 10/23/2007 |
| 7273098 | Method for controlling oil and gas well production from multiple wells A method for producing oil or gas from multiple wells, the wells including at least a first well and a second well, with each well using an artificial lift system that includes a plunger associated with a motor valve off time, and first and second identical connecti... | 09/25/2007 |
| 7264067 | Method of drilling and completing multiple wellbores inside a single caisson A method and apparatus for drilling and completing multiple wellbores from a single drilling rig and from within a single wellhead is provided. In one embodiment, a template is disposed at a predetermined location downhole within a casing. In one aspect, a first cas... | 09/04/2007 |
| 7264048 | Slot cavity A method for accessing a subterranean zone from the surface includes drilling a substantially vertical well bore from the surface to the subterranean zone and forming a slot cavity in the substantially vertical well bore proximate to the subterranean zone. The slot ... | 09/04/2007 |
| 7240508 | Connecting package for refrigerator compressor Disclosed is a connecting package for a refrigerator compressor. The connecting package includes a base including an overload protector mounting section and a motor starter relay element mounting section and having first to third pin connecting ports connected to a ... | 07/10/2007 |
| 7207395 | Method and system for testing a partially formed hydrocarbon well for evaluation and well planning refinement A method and system for testing a partially formed well includes forming a first well bore intersecting a subterranean formation. The first well bore includes a portion of a planned well having a first configuration. A production characteristic of the subterranean f... | 04/24/2007 |
| 7207390 | Method and system for lining multilateral wells In accordance with one embodiment of the present invention, a method for lining a lateral wellbore includes drilling a main wellbore extending from a surface to a subterranean zone, casing the main wellbore with a main casing having a plurality of lateral wellbore w... | 04/24/2007 |
| 7185702 | Methods and compositions for the in-situ thermal stimulation of hydrocarbons using peroxide-generating compounds One embodiment provides a method for stimulating hydrocarbon production in a subterranean formation, comprising: introducing a peroxide-generating compound into a desired location in a subterranean formation, wherein the peroxide-generating compound is substantially... | 03/06/2007 |
| 7165616 | Method of controlling the direction of propagation of injection fractures in permeable formations The invention relates to a method of controlling the production of oil or gas from a formation (1) comprising that a first and second drilled production well (105, 110) are formed next to each other that extend essentially horizontally, that, at the dr... | 01/23/2007 |
| 7163063 | Method and system for extraction of resources from a subterranean well bore A method for stimulating production of resources from a coal seam includes forming a drainage well bore in the coal bed that has a first end coupled to a ground surface and a second end in the coal seam. The method further includes inserting a liner into the well bo... | 01/16/2007 |
| 7134506 | Deformable member A deformable member can be used in a well tool for use in downhole oil/gas wells. In one embodiment, a deformable member (46) is described which is deformable between undeformed and deformed positions, and comprises a generally hollow cylindrical body (48 | 11/14/2006 |
| 7128156 | Wellbore rig with heat transfer loop apparatus A rig, the rig useful in well operations, the rig having rig structure above the earth, and heat transfer loop apparatus connected to the rig for supplying heat transfer fluid for use on the rig, either from a loop or loops with portion(s) in water or portion(s) in ... | 10/31/2006 |
| 7114557 | System and method for optimizing production in an artificially lifted well A system and method is provided for optimizing production from a well. A plurality of sensors are positioned to sense a variety of production related parameters. The sensed parameters are applied to a wellbore model and validated. Discrepancies between calculated pa... | 10/03/2006 |
| 7100687 | Multi-purpose well bores and method for accessing a subterranean zone from the surface A well system includes at least two well bores extending from a surface to a subterranean zone. Each of the two well bores is used to form a well bore pattern for the subterranean zone that intersects the other well bore and transports fluid from the subterranean zo... | 09/05/2006 |
| 7077198 | In situ recovery from a hydrocarbon containing formation using barriers A method is described for inhibiting migration of fluids into and/or out of a treatment area undergoing an in situ conversion process. Barriers in the formation proximate a treatment area may be used to inhibit migration of fluids. Inhibition of migration of fluids ... | 07/18/2006 |
| 7073599 | Monobore wellbore and method for completing same A monobore wellbore (68) and method for completing the same are disclosed. The monobore wellbore (68) comprises a first casing (74) having an inner diameter (76) and a lap region (80). A second casing (90) is positioned with... | 07/11/2006 |
| 7073595 | Method and system for controlling pressure in a dual well system A method for controlling pressure of a dual well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone using a drill string. The articulated w... | 07/11/2006 |
| 7073577 | Array of wells with connected permeable zones for hydrocarbon recovery Hydrocarbons are recovered from a subterranean reservoir by drilling an injection well bore having an outlet in the reservoir and drilling a production well bore spaced apart from the injection well bore and having an inlet in the reservoir. A permeable zone having ... | 07/11/2006 |
| 7059402 | Method and apparatus for exploiting oilfields A method and apparatus for exploiting oilfields involving the installation of a well network in the form of an open or non-open ring that is generally non-circular. Horizontal well sections (3) are drilled from vertical injection (1) or producing (2... | 06/13/2006 |
| 7048049 | Slant entry well system and method A system for accessing a subterranean zone from the surface includes an entry well bore extending down from the surface. A plurality of slanted well bores extend from the entry well bore to the subterranean zone. Drainage patterns extend from the slanted well bores ... | 05/23/2006 |
| 7036584 | Method and system for accessing a subterranean zone from a limited surface area A method and system for accessing subterranean resources from a limited surface area includes a first well bore extending from the surface to the target zone. The first well bore includes an angled portion disposed between the target zone and the surface to provide ... | 05/02/2006 |
| 7032660 | In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation An oil shale formation may be treated using an in situ thermal process. Fluid migration into and/or out of a treatment area in the formation may be inhibited. In some embodiments, a barrier may be used to inhibit migration of fluids into and/or out of the treatment ... | 04/25/2006 |
| 7025137 | Three-dimensional well system for accessing subterranean zones A drainage system for accessing multiple subterranean zones from the surface includes an entry well extending from the surface. The system also includes two or more exterior drainage wells extending from the entry well through the subterranean zones. The exterior dr... | 04/11/2006 |
| 7025154 | Method and system for circulating fluid in a well system A method for circulating drilling fluid in a well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone. The articulated well bore is horizont... | 04/11/2006 |
| 7008544 | Hydrate-based desalination/purification using permeable support member Processes and apparatus are disclosed for separating and purifying aqueous solutions such as seawater by causing a substantially impermeable mat of gas hydrate to form on a porous restraint. Once the mat of gas hydrate has formed on the porous restraint, the portion... | 03/07/2006 |
| 6976533 | Method and system for accessing subterranean deposits from the surface Improved An improved method and system for accessing subterranean deposits from the surface that substantially eliminates or reduces the disadvantages and problems associated with previous systems and methods. In particular, the present invention provides an articul... | 12/20/2005 |
| 6971820 | Microblower assisted barometric valve A gas exchange apparatus is provided which provides for both passive fluid flow and blower associated fluid flow through a barometric valve. A battery powered blower is provided which allows for operation of the barometric valve during times when the barometric valv... | 12/06/2005 |
| 6969467 | Hydrate-based desalination with hydrate-elevating density-driven circulation In hydrate-based desalination or other water purification conducted using naturally buoyant or trapped-gas-assisted buoyancy hydrate in a hydrate fractionation column, a portion of fresh or purified product water is extracted from an upper, hydrate dissociation regi... | 11/29/2005 |
| 6964298 | Method and system for accessing subterranean deposits from the surface An improved method and system for accessing subterranean deposits from the surface substantially eliminates or reduces the disadvantages and problems associated with previous systems and methods. In particular, the present invention provides an articulated well with... | 11/15/2005 |
| 6964308 | Method of drilling lateral wellbores from a slant well without utilizing a whipstock In accordance with one embodiment of the present invention, a method for drilling a lateral wellbore from a slant well includes drilling the slant well below the surface of the earth such that the slant well is angled toward a first horizontal direction that coincid... | 11/15/2005 |
| 6942030 | Three-dimensional well system for accessing subterranean zones A method for accessing a plurality of subterranean zones from the surface includes forming an entry well from the surface and forming two or more exterior drainage wells from the entry well through the subterranean zones. The exterior drainage wells each extend outw... | 09/13/2005 |
| 6938696 | Backpressure adapter pin and methods of use A tubing assembly including a tubing string and tubing hanger provides a fluid passage with backpressure threads for securing a backpressure plug in a fluid-tight seal below the tubing hanger, so that the tubing hanger can be removed from the tubing string. The back... | 09/06/2005 |
| 6932168 | Method for making a well for removing fluid from a desired subterranean formation An improved method for making a well for removing fluid from a desired subterranean formation. This invention provides for a method for making a well for removing fluid from a desired subterranean formation having an interface zone. The interface zone is coupled to ... | 08/23/2005 |
| 6918439 | Backpressure adaptor pin and methods of use A tubing assembly including a tubing string and tubing hanger provides a fluid passage with backpressure threads for securing a backpressure plug in a fluid-tight seal below the tubing hanger, so that the tubing hanger can be removed from the tubing string. The back... | 07/19/2005 |
