| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Apparatus for keeping a down hole drilling tool vertically aligned | US12294102 | 2007-03-16 | US07717197B2 | 2010-05-18 | Kenneth H. Wenzel |
| An apparatus (10) for keeping a down hole drilling tool vertically uses a pendulum (36). The pendulum (36) controls flow from outlets (34) of drilling fluid chambers (30), providing drilling fluid to centralizer (24) activating pistons (26) acting upon centralizer blades (24). When the outer housing (12) deviates from a vertical orientation, the pendulum (36) swings by force of gravity to assume an angularly offset pivotal position. This adjusts the hydraulic pressure in one or two of the outlets (34) for one or two of the drilling fluid chambers (30) resulting in a change in the hydraulic force acting upon one or two of the pistons (26) causing one of the centralizers (24) to change their position to urge the outer housing (12) back toward the vertical position until the pendulum (36) again assumes the concentric pivotal position and the balanced pressure equilibrium in the drilling fluid chambers (30) is restored. | ||||||
| 62 | Progressive cavity pump rod guide | US12005446 | 2007-12-27 | US20090166036A1 | 2009-07-02 | Matthew S. Davison |
| A rod guide is provided for use in a rotating rod string (12) for powering a progressive cavity pump (14) for pumping downhole fluids through tubing (16) to the surface. The rod guide includes a rotor sleeve (20) secured to the rod string and having a plurality of circumferentially spaced exterior surfaces (22) each positioned substantially along an exterior of a cylinder. The rotor sleeve also includes one or more stop surfaces (24) for limiting axial movement of a stator sleeve (40) with respect to the rotor sleeve, and two or more axially extending cavities (26) each extending from a bottommost surface to an opposing uppermost surface of the rotor sleeve and passing through the one or more stop surfaces. Stator sleeve (40) surrounds the rotor sleeve and has an interior surface (42) for engaging the plurality of circumferentially spaced exterior surfaces of the rotor sleeve, and a plurality of ribs (44) extending outward from two or more outer cylindrical surface portions (44) of the stator sleeve. | ||||||
| 63 | APPARATUS FOR KEEPING A DOWN HOLE DRILLING TOOL VERTICALLY ALIGNED | US12294102 | 2007-03-16 | US20090114451A1 | 2009-05-07 | Kenneth H. Wenzel |
| An apparatus (10) for keeping a down hole drilling tool vertically uses a pendulum (36). The pendulum (36) controls flow from outlets (34) of drilling fluid chambers (30), providing drilling fluid to centralizer (24) activating pistons (26) acting upon centralizer blades (24). When the outer housing (12) deviates from a vertical orientation, the pendulum (36) swings by force of gravity to assume an angularly offset pivotal position. This adjusts the hydraulic pressure in one or two of the outlets (34) for one or two of the drilling fluid chambers (30) resulting in a change in the hydraulic force acting upon one or two of the pistons (26) causing one of the centralizers (24) to change their position to urge the outer housing (12) back toward the vertical position until the pendulum (36) again assumes the concentric pivotal position and the balanced pressure equilibrium in the drilling fluid chambers (30) is restored. | ||||||
| 64 | Method and Apparatus for Orienting Perforating Devices | US11425876 | 2006-06-22 | US20080264639A1 | 2008-10-30 | Robert A. Parrott; David Mills; Cynthia L. Hickson; Jerry D. Campbell |
| The present invention provides an apparatus and method of orienting perforating gun strings conveyed on a tool string. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, the loading tube or the gun housing. An adapter is provided intermediate the tool string that facilitates conveyance of the gun string downhole. Additionally, the adapter enables the gun string to rotate independent of the tool string. | ||||||
| 65 | In-situ molded non-rotating drill pipe protector assembly | US12074787 | 2008-03-05 | US20080217063A1 | 2008-09-11 | N. Bruce Moore; Eric J. O'Neal; Sarah B. Mitchell |
| A non-rotating drill pipe protector sleeve is molded in situ around a drill pipe tubing. The inner surface of the molded protector sleeve can be shaped to form a fluid bearing during use. Fixed stop collars may be molded in situ in the same mold and bonded to the tubing at opposing ends of the molded sleeve. Alternatively, a flexible sleeve liner made from a material having a hardness less than that of the sleeve's molding material can be used as a mold insert around the tubing. The liner can be bonded to the molded sleeve material when the sleeve is molded around the liner. The interior surface of the liner can be shaped to form a fluid bearing for the inside surface of the molded sleeve. Reinforcing inserts and wear pads can be placed in the mold region of the sleeve. Chemical and/or mechanical bonding is provided between the liner reinforcement and the material from which the sleeve is molded. Reinforcing inserts and wear pads also can be placed in the mold regions for the stop collars. | ||||||
| 66 | Roller subs | US11046915 | 2005-01-31 | US07395881B2 | 2008-07-08 | Frederick Duguld McKay; Richard John Gilchrist; Colin Alexander Black |
| A roller sub system for reducing friction between a tool string and a wall in a well bore for use in the oil and gas industry. The apparatus has a roller body and wheel sub system, which is configured to have removably mounted wheels of variable diameters. A plurality of different diameter wheel sets are described for mounting on the roller sub axles and orientating the system in the well bore. The wheels are fixed to the roller sub axles through a quick-release mechanism. A single apparatus can thus be employed with different diameter wheels to operate in well bores of variable diameters. | ||||||
| 67 | Guide tube for a flexible pipe for transporting hydrocarbons | US10576226 | 2004-10-15 | US07293940B1 | 2007-11-13 | Dominique Perreau-Saussine; Gaspar Xavier |
| A guide tube for a flexible pipe for transporting hydrocarbons comprising an internal tubular element of a substantially rectilinear section extending along an axis (A) and extended by a free section having a curvature along its length and a wall which is internal with respect to the curvature against which the flexible pipe is accommodated when frictionally carried through guides. The rectilinear section comprises eccentric guides for directing the flexible pipe away from the axis (A) and in a direction opposite to the curvature of the free section such that the pipe is deviated from the internal wall. | ||||||
| 68 | Downhole Apparatus for Mobilising Drill Cuttings | US10594157 | 2005-03-24 | US20070215388A1 | 2007-09-20 | lan Alastair Kirk; William Bieldside; Alistair Clark |
| Apparatus for mobilising drill cuttings in a well, comprising at least one vane (12), and two or more blades (15). The two or more blades (15) define at least one fluid conduit between adjacent blades (15). The blades (15) and the or each vane (12) are rotatable relative to one another. The apparatus is provided to alleviate the problem of drill cuttings clumping together downhole. The or each vane (12) can be provided on a sleeve (5). The blades (15) can be mounted on a bushing (7) that is rotatably mounted on the sleeve (5). | ||||||
| 69 | Rotating Systems Associated with Drill Pipe | US11684726 | 2007-03-12 | US20070144783A1 | 2007-06-28 | Daniel Gleitman; Paul Rodney; James Dudley |
| Methods and apparatuses for drilling a borehole are disclosed. An electric motor electrically and mechanically coupled to a wired drill pipe is provided. The electric motor couples to a shaft that rotates when power is supplied to the electric motor. The shaft is couplable to a drill bit. The wired drill pipe transfers electricity to the electric motor from the surface. Operation of the electric motor rotates the shaft. The drill bit wears away earth to form the borehole in the earth. | ||||||
| 70 | Rotating systems associated with drill pipe | US11071823 | 2005-03-03 | US07204324B2 | 2007-04-17 | Daniel D. Gleitman; Paul F. Rodney; James H. Dudley |
| Methods and apparatuses for drilling a borehole are disclosed. An electric motor electrically and mechanically coupled to a wired drill pipe is provided. The electric motor couples to a shaft that rotates when power is supplied to the electric motor. The shaft is couplable to a drill bit. The wired drill pipe transfers electricity to the electric motor from the surface. Operation of the electric motor rotates the shaft. The drill bit wears away earth to form the borehole in the earth. | ||||||
| 71 | Drill string tool with bearing sleeve | US10888112 | 2004-07-09 | US07182161B2 | 2007-02-27 | George Swietlik |
| A drill string tool such as a drill string stabilizer (1) comprises a circumferentially continuous bearing sleeve (6) having an outside diameter which is equal to or greater than the outside diameter of a radially outermost part of the drill string tool. | ||||||
| 72 | Centralizer | US10312023 | 2001-06-21 | US07159668B2 | 2007-01-09 | Derek Frederick Herrera |
| 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 rotation thereof. The centralizer 10 may be selectively permitted or restricted from rotation by selection of appropriate stops, and by relative movement of the stops and centralizer on the tubular. Certain embodiments of the centralizer 10 may also include blades 14 on the body thereof, the blades being formed such that the velocity and kinetic energy of fluid flow across the blades is altered, so reducing settling of drill cuttings within the bore and on the centralizer. | ||||||
| 73 | Method and apparatus for friction reduction in a downhole tool | US11152409 | 2005-06-14 | US20060278405A1 | 2006-12-14 | Rocky Turley; John McKeachnie |
| A system for facilitating the insertion of a tool into a wellbore, especially a non-vertical wellbore. In one embodiment a tool is fixable in a wellbore and includes centralizing, friction-reducing members that serve to keep the body of the tool off the walls of the wellbore. In another embodiment the tool includes a wiper ring that partially fills an annular area formed between the centered tool and the wellbore walls. The surface of the ring facing the upper end of the wellbore provides fluid resisting piston surface and permits the centered tool to be pumped down the wellbore more effectively. | ||||||
| 74 | Method and apparatus for orienting perforating devices | US10435320 | 2003-05-09 | US07114564B2 | 2006-10-03 | Robert A. Parrott; David Mills; Cynthia L. Hickson; Jerry D. Campbell |
| The present invention provides an apparatus and method of orienting perforating gun strings conveyed on a tool string. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, the loading tube or the gun housing. An adapter is provided intermediate the tool string that facilitates conveyance of the gun string downhole. Additionally, the adapter enables the gun string to rotate independent of the tool string. | ||||||
| 75 | Bi-directional thruster pig apparatus and method of utilizing same | US10700377 | 2003-11-03 | US07025142B2 | 2006-04-11 | James R. Crawford |
| A retrievable pig apparatus having a substantially cylindrical body portion, the body portion having a central flow bore therethrough, and secured to coiled tubing, including a central fluid flow bore in fluid communication with the interior bore of the coiled tubing; a plurality of flow bores spaced equally apart within the body, with the flow bores allowing fluid flow to be injected at a certain predetermined pressure through the flow bores, so as to be emitted on the front end of the pig for defining a high pressure spray of fluid or the like material to break up blockages of debris in the pipeline, such as paraffin or the like; the debris retrieved through the central bore back into the coiled tubing to be stored in a tank or the like on the surface. There is further included a plurality of flexible cups, spaced apart along the outer wall of the pig body, each cup secured to an interior metallic ring around the body of the pig, with the flexible cups making contact with the wall of the pipeline so as to provide a continuous fluid seal between the wall of the pipeline and the ends of the plurality of flexible cups. Intermediate each cup there is provided a compressible safety ring, which will compress under excess pipeline pressure, thus allowing the fluid to flow past the plurality of flexible cups, reducing the pressure in the pipeline. Further there is provided within the plurality of six flow bores around the interior flow bore, for adjusting the force that is allowed to flow through the plurality of bores in either direction by providing a first and second thruster springs of a pre-determined compressible force for allowing the spring to be compressed and effecting fluid flow therethrough in the direction in which the flow is to travel in the bores. | ||||||
| 76 | Method of injecting tubing down pipelines | US10068782 | 2002-02-05 | US06561280B1 | 2003-05-13 | Benton F. Baugh; James R. Crawford |
| A new method and apparatus have been developed which inserts and withdraws tubing from pipes without bending or kinking the tubing. Beneficially, the new method and apparatus may be employed to insert and withdraw tubing to depths greater than ever possible before. The method involves using a thruster pig to provide force to inject the tubing, and skate apparatuses to reduce coiling and friction of the tube. Advantageously, the apparatus is portable, easily handled, and adaptable to handle tubing of differing diameters. | ||||||
| 77 | Axle, a friction reducing fitting and an axle installation method | US09623142 | 2000-11-15 | US06494274B1 | 2002-12-17 | Geoffrey Neil Murray; Denis Robert Fernandes; Peter James Radich |
| A friction reducing fitting for downhole applications. The fitting has a body portion (3) for securement about a tubular member, the body portion having a pair of apertures (5, 6). A roller (1) is provided, and an axle (4, 11) passing through said roller and said apertures in the body at either end of said roller. The axle is deformed at at least one end to prevent movement of the end of the axle through the aperture in the body. | ||||||
| 78 | Centralizer | US09601297 | 2000-10-16 | US06453999B1 | 2002-09-24 | Bernd Reinholdt |
| A centralizer which comprises a pair of annular bands (2, 3) which are spaced apart by a plurality of hollow members (4 to 9) characterized in that the hollow members (4 to 9) are each provided with at least one window (24, 25, 26) having a roller (12, 13, 14) freely rotatably mounted therein. | ||||||
| 79 | Pile forming apparatus | US45403 | 1998-03-20 | US6033152A | 2000-03-07 | Kenneth J. Blum |
| An improved lateral soil displacement and compaction auger (24) is provided including a central shaft (34) equipped with a central cementious material pipe (42), helical flighting sections (36,38) and lower rollers (64A-64E) positioned between lower flight sections. The rollers (64A-64E) are strategically located so that their outer peripheries cooperatively define an expanding spiral from the lower end of the auger (24) towards the central section (50) thereof. The rollers (64A-64E) are primarily responsible for lateral soil displacement and compaction during rotation of the auger (24) and do so with reduced frictional buildup. The preferred auger (24) also includes a lower cap (40) which is retained during auger rotation by teeth (90,92); during filling operations, the cap (40) is shifted downwardly to allow ejection of cementious material from the pipe (42) while retaining the cap (40). Downhole pressure buildup during filling can be monitored and adjusted through use of a pressure gauge (108) and throttle valve (110). In an alternative embodiment, an auger (132, 134) is equipped with an upper, lateral soil displacement and compaction portion (136) together with a lower drilling extension (138). Alternately, a auger monitoring and control assembly (182) is used, made up of series-coupled cementious material flow and cementious material pressure sensors (186, 188), together with an auger depth sensor (190). The sensors (186-190) are coupled to a readout device (200). | ||||||
| 80 | Drilling riser centralizer | US889271 | 1997-07-08 | US5950737A | 1999-09-14 | Yung-sen Chou; Jeffrey D. Otten; Sammy R. Moore; Michael E. Capesius |
| A centralizing device is provided for a riser of an offshore well platform having a frame that defines an opening through which the riser passes from the platform to a subsea wellhead. The centralizing device has a centralizing ring with an inner diameter greater than the outer diameter of the riser so that the riser can be passed longitudinally therethrough. The centralizing ring is positioned within the opening of the frame. Adjustable mounting means are used for mounting the centralizing ring to the frame at different positions within the opening. A roller assembly of the centralizing device is carried upon the riser as the riser is lowered through the centralizing ring. The roller assembly is configured to engage the centralizing ring as the riser is lowered through the centralizing ring so that the centralizing ring stops further carriage of the roller assembly by the riser. The roller assembly has rollers mounted thereon that bear against an exterior of the riser to limit lateral movement of the riser but that allow longitudinal movement of the riser when the roller assembly is engaged with the centralizing ring. | ||||||
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