Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8082987 | Hydraulically locking stabilizer A downhole tool includes a pressure housing deployed in the bore of a drill collar. At least three fins are deployed on the housing and in the tool annulus. At least one of the fins includes a floating blade deployed thereon. The blade includes a plurality of radial... | 12/27/2011 |
| 8066066 | Borehole casing centraliser A centraliser segment (11) comprising a first collar portion(15), a second collar portion (17) and bow element (19) extending between said first collar portion and said second collar portion to maintain the collar portions in spaced relat... | 11/29/2011 |
| 7802622 | Cable-protective pipe section, a method of protectively arranging at least one cable on the outside of the pipe section and use of a device for protecting the cable A technique protectively arranges at least one cable on the outside of and along at least one pipe section of a pipe string. The cable is secured to at least one cable protector coupled to the outside of at least one pipe section of the pipe string. The cable protec... | 09/28/2010 |
| 7708063 | Centralizer tool, a centralizing method and a method of making a centralizer tool Disclosed herein is a method for centralizing a downhole component. The method includes, delivering a tubular member with a plurality of lines of weakness therein to a site requiring a centralizer, and actuating the tubular member by causing a portion of the tubular... | 05/04/2010 |
| 7431535 | Clamp for anchoring production tube, electrohydraulic hose and electric cable simultaneously A clamp is disclosed for use in deep sea oil exploration operations. The clamp includes a pre-formed metallic belt (12) to which a first rigid metallic curve (13) is welded. The rigid metallic curve reinforces and protects the anchorage housing of an e... | 10/07/2008 |
| 7357178 | In and relating to downhole tools An improved centralizer is provided for centralization of tubulars such as casings, liners, production tubing, and production screens, in oil/gas wells. Such a centralizer comprises a tubular body, wherein a portion of an outermost surface of the tubular body is for... | 04/15/2008 |
| 7334642 | Constant force actuator A radially expandable tool is provided that includes a tool body and a radially moveable member coupled to the tool body and in force receiving relation to a constant force actuator. The radially moveable member is movable by the constant force actuator from an clos... | 02/26/2008 |
| 7311154 | Line slack compensator A completion assembly has one or more control lines. The control lines can develop differing degrees of slack depending on the completion assembly configuration and also on the particular use of the completion assembly. A line slack compensator cooperates with the c... | 12/25/2007 |
| 7275594 | Stab guide A tool string stab guide for axially aligning first tool string components with second tool string components is disclosed. The stab guide has a body with an axial length along a longitudinal axis with a first and a second section. The first section of the body adap... | 10/02/2007 |
| 7252152 | Methods and apparatus for actuating a downhole tool The present invention relates to apparatus and methods for remotely actuating a downhole tool. In one aspect, the present invention provides an apparatus for activating a downhole tool in a wellbore, the downhole tool having an actuated and unactuated positions. The... | 08/07/2007 |
| 7243722 | Expander device Apparatus (9) for radially expanding an expandable member, the apparatus including a plurality of radially moveable fingers (22). The radially moveable fingers (22) can move between two positions; in a first position, the moveable fingers (22... | 07/17/2007 |
| 7234517 | System and method for sensing load on a downhole tool A system and method for determining load on a downhole tool according to which one or more sensors are embedded in one or more components of the tool or in a material on one or more of the components. The sensors are adapted to sense load on the components. ... | 06/26/2007 |
| 7219730 | Smart cementing systems The present invention provides methods and apparatus for determining the location of an apparatus in a wellbore. The method includes lowering the apparatus with a conveying member and measuring a parameter associated with the conveying member. Thereafter, the measur... | 05/22/2007 |
| 7185714 | Traction control for downhole tractor Apparatus, system and methods useful for controlling the traction of a downhole tractor in a borehole include the capability of repeatedly adjusting the normal force applied to at least one component that causes movement of the tractor in the borehole. ... | 03/06/2007 |
| 7185699 | Water compatible hydraulic fluids A composition for use in an oil chamber of a tool includes a hydraulic oil; and a surfactant, wherein the surfactant is present at an amount sufficient to form micelles in the hydraulic oil. The composition may further include an amphiphilic copolymer. A method incl... | 03/06/2007 |
| 7182131 | Dual diameter and rotating centralizer/sub and method A dual diameter centralizing sub for maintaining stand-off and/or centralizing a tubular member inside a larger diameter tubular member, for instance, in a wellbore. The centralizer is provided with bow springs that compress into grooves between radially outwardly-e... | 02/27/2007 |
| 7174958 | Drill string member A drill-string member includes at least one grooved portion on an outer surface thereof. A pair of axially spaced-apart grooved portions are typically provided, with two such pairs axially spaced along the longitudinal length of the member. A plurality of grooves ar... | 02/13/2007 |
| 7165634 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 01/23/2007 |
| 7159668 | Centralizer A centralizer 10 for mounting on a tubular member such as a section of casing, together with one or more stops 42, 48 for retaining the centralizer thereon. The stops 42, 48 are provided with profiles for engaging the centralizer to restrict rot... | 01/09/2007 |
| 7156181 | Puller-thruster downhole tool A method and apparatus for propelling a tool having a body within a passage. The tool includes a gripper including at least a gripper portion which can assume a first position that engages an inner surface of the passage and limits relative movement of the gripper p... | 01/02/2007 |
| 7156192 | Open hole tractor with tracks A downhole tractor is provided that may be used in open or cased wells, and is also designed for use in open holes having a variety of soil/formation consistencies (e.g., soft, firm, rigid, etc.), varying diameters and non-uniform and irregular bore profiles. The tr... | 01/02/2007 |
| 7156171 | Dual diameter and rotating centralizer/sub A centralizer for maintaining stand-off and/or centralizing a tubular member inside a larger diameter tubular member, for instance, in a wellbore. The centralizer is provided with bow springs that compress to a minimal diameter around the outer diameter of the sub t... | 01/02/2007 |
| 7147068 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 12/12/2006 |
| 7143848 | Downhole tool An expandable centralizer is disclosed having a body having a first portion of circular cross-section and a second portion of polyhedral cross-section. Centralizing members are arranged on the faces of the second portion which, in a first position, limit the diamete... | 12/05/2006 |
| 7140432 | Dual diameter and rotating centralizer/sub and method A dual diameter centralizing sub for maintaining stand-off and/or centralizing a tubular member inside a larger diameter tubular member, for instance, in a wellbore. The centralizer is provided with bow springs that compress into grooves between radially outwardly-e... | 11/28/2006 |
| 7121364 | Tractor with improved valve system A hydraulically powered tractor adapted for advancement through a borehole including an elongate body, aft and forward gripper assemblies, and a valve control assembly housed within the elongate body. The aft and forward gripper assemblies are adapted for selective ... | 10/17/2006 |
| 7121349 | Wellhead protector A centralizer is located in a passage of a tubular body of a wellhead assembly for centralizing well tools lowered through the passage. Centralizing members have outer ends mounted to axially extending stationary hinge members, which are mounted to the tubular body ... | 10/17/2006 |
| 7107154 | Wellbore evaluation system and method A wellbore evaluation system evaluates mechanical wear and corrosion to components of a well system including a production tubing string positionable in a well and a sucker rod string movable within the production tubing string. A deviation sensor determines a devia... | 09/12/2006 |
| 7104318 | Self-contained centralizer system A centralizer assembly for centralizing casing inside a riser includes a locking element to move generally radially outward from the casing toward the riser in response to a change in pressure in the annulus between the casing and the riser. The locking element may ... | 09/12/2006 |
| 7090007 | Centralizer for wireline tools A centralizer for use in oil well wireline toolstrings comprising a central mounting rod and floating spring mechanisms between which a number of jointed centralizer arms are connected. The jointed centralizer arms have a section with a concave profile disposed near... | 08/15/2006 |
| 7071697 | Centralizer including measurement means A centralizer (1) for position a casing (3) in a conduit (4) passing through underground formations includes measurement means (7) such as an electrode for deriving at least one representative parameter of the formations. ... | 07/04/2006 |
| 7063146 | System and method for processing signals in a well A system and method for transferring data across a component in a well, according to which a first module receives the data and transmits the data, via electromagnetic waves, through the component, and a second module receives the transmitted data from the first mod... | 06/20/2006 |
| 7048064 | Multi-unit centralizer A multi-unit centralizer for centralizing or otherwise positioning a tubing string in a well bore. The centralizer has a centralizer hub including multiple hub subunits for removably engaging each other and at least one spacer lug for removably engaging each of the ... | 05/23/2006 |
| 7048050 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 05/23/2006 |
| 7036610 | Apparatus and method for completing oil and gas wells A method of drilling and completing a wellbore in a geological formation to produce hydrocarbons from a well comprising at least the following four steps: drilling the well with a retrievable drill bit attached to a casing; removing the retrievable drill bit from th... | 05/02/2006 |
| 7013824 | Keel joint centralizer A riser centralizer for transferring lateral loads from the riser to a platform hull includes a keel centralizer mounted on a keel joint. The keel centralizer is received within a keel guide sleeve secured in a support mounted at the lower end of the platform hull. ... | 03/21/2006 |
| 7007758 | Cavity positioning tool and method A cavity positioning tool includes a housing adapted to be coupled to a downhole string. The cavity positioning tool includes at least one blunt arm pivotally coupled to the housing. Each blunt arm is configured to contact a surface of the cavity to position the too... | 03/07/2006 |
| 6968897 | Anti-rotation tool A tool is provided for preventing the rotation of a downhole tool or rotary pump stator, the tool comprising a tubular housing and a jaw which is biased radially outwardly from the tool to engage the casing wall for arresting tool rotation and providing significant ... | 11/29/2005 |
| 6966371 | Dual diameter and rotating centralizer/sub and method A dual diameter centralizing sub for maintaining stand-off and/or centralizing a tubular member inside a larger diameter tubular member, for instance, in a wellbore. The centralizer is provided with bow springs that compress into grooves between radially outwardly-e... | 11/22/2005 |
| 6959761 | In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 11/01/2005 |
