子分类：
- E21B17/1007： ..{用于管内表面,例如,用于水下井口的磨损衬套}
- E21B17/1014： ..{柔性或扩张的扶正装置,例如,使用活塞挤压井壁(E21B17/1042优先)}
- E21B17/1035： ..{用于多个杆、管或线路的,例如,用于控制线路的}
- E21B17/1042： ..{弹性保护器或扶正装置}
- E21B17/1057： ..{带滚筒或带可相对旋转衬套的扶正装置(E21B17/1014优先)}
- E21B17/1071： ..{专门适用于泵杆,例如,抽油杆}
- E21B17/1078： ..{套管、管子或钻管的稳定器或扶正装置(偏心定位设备入E21B17/10;E21B17/1007到E21B17/1064优先)}
- E21B17/1085： ..{磨损保护器;防磨接头;表面硬化(扶正装置里的磨损防护器参见相关组)}
- E21B17/1092： ..{钻头的校准截面}
- E21B17/12： ..安置或取出磨损保护器的装置
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Apparatus for boring through a solid material | US18244 | 1998-02-03 | US6161633A | 2000-12-19 | Gilbert R. Broom |
| A rotary drill bit for boring a hole through a solid body is disclosed. The drill bit comprises a collar and a penetrating member. At a proximal end, the collar is attachable to a drill shaft. At a distal end, the collar is attachable to the penetrating member. The penetrating member has a connecting end for attachment to the collar and a cutting end for engaging the solid body. A pilot drill is fixedly attached to the cutting end for initiating contact with the solid body. | ||||||
| 182 | Cable anchor assembly | US873980 | 1997-06-12 | US5988286A | 1999-11-23 | Jeffrey L. Dwiggins |
| A cable anchor for preventing longitudinal movement of a cable within a conduit to transfer the weight of the cable to the conduit, comprises a housing connectable to the cable. An arm member is connected to the housing and is movable from a retracted position to an extended position in gripping contact with an interior surface of the conduit to thereby transfer the weight of the cable to the conduit. A piston and cylinder assembly, operable from fluid pressure within the conduit, is connected to the housing and in operable contact with the arm member to extend the arm member. | ||||||
| 183 | Reaming apparatus and method with enhanced stability and transition from pilot hole to enlarged bore diameter | US727879 | 1996-10-09 | US5765653A | 1998-06-16 | Michael L. Doster; Rudolf C. O. Pessier; David M. Schnell; Bart T. McDonald |
| A method and apparatus for reaming or enlarging a borehole with enhanced stability. A pilot stabilization pad (PSP) having an axially and circumferentially tapered entry surface and a circumferential transition surface above is employed to enhance the transition from the smaller diameter borehole to be enlarged while accommodated the side force vector generated by the cutting assembly used to effect the enlargement. In addition, one or more eccentric stabilizers are employed above the reaming apparatus to laterally or radially stabilize the bottomhole assembly, which may comprise either a straight-hole or steerable, motor-driven assembly. | ||||||
| 184 | Methods and systems for subterranean multilateral well drilling and completion | US731464 | 1996-10-15 | US5735350A | 1998-04-07 | James R. Longbottom; Don C. Cox; John C. Gano; William R. Welch; Pat M. White; Richard Charles Jacquier; Tommie Austin Freeman; Harold Wayne Nivens; Paul David Holbrook; David H. Mills |
| Improved methods and systems for creating a multilateral well and improved multilateral well structures. In one aspect of the present invention, the method comprises the steps of: (1) setting a diverter at a prescribed position and a prescribed orientation in a main well flow conductor located within a main wellbore, (2) boring through a sidewall of the main well flow conductor and into a material surrounding the main well flow conductor, the boring creating a window having a particular shape in the sidewall, the orientation of the diverter determining a lateral position of the window in the main well flow conductor, a lateral wellbore thereby being formed in the material and extending from the main wellbore, (3) lining the lateral wellbore with a liner, the liner having an interface end, the interface end adapted to contact a periphery of the window in the sidewall and (4) cementing the liner in place within the lateral wellbore, the step of cementing creating a pressure-bearing seal between the periphery of the window and the interface end of the liner. The method allows multiple lateral wellbores to be joined to the main wellbore and provides for connectivity among main and lateral wellbores, pressure-bearing sealing of joints to allow selective isolation of one or more wellbores or portions thereof and subsequent wellbore access for rework or other purposes. | ||||||
| 185 | Apparatus and methods for use in cementing a casing string within a well bore | US790256 | 1997-01-27 | US5697442A | 1997-12-16 | Morris G. Baldridge |
| The present invention provides an apparatus in the form of a float shoe or collar for use in cementing a casing string within a well bore. The shoe or collar has blades extending therefrom for centering the shoe or collar, as well as the lower end of the casing string, within the well bore. The blades include jetting ports positioned therein for use in jetting the formation. In an alternative embodiment, the jetting ports are located between blades which are generally convoluted and extend circumferentially part-way around the perimeter of the apparatus. | ||||||
| 186 | Centralizing liner hanger method and system for subterranean multilateral well drilling | US380905 | 1995-01-30 | US5499681A | 1996-03-19 | Pat M. White; John C. Gano |
| A liner hanger and a method of hanging a liner. The liner hanger comprises: (1) a slip having a gripping surface thereon and adapted to slide axially with respect to the liner between a retracted position and a deployed position, (2) a slip housing located radially outwardly of the slip and covering the slip when the slip is in the retracted position, (3) a slip carrier slidably mounted to the liner and adapted to move axially with respect to the liner and (4) a slip arm extending from the slip carrier and coupling the slip carrier and a slip having a gripping surface thereon and adapted to slide axially with respect to the liner between a retracted position and a deployed position, the slip carrier capable of transmitting a deploying force to the slip via the slip arm to move the slip from the retracted position to the deployed position, the slip arm partially collapsing when the deploying force exceeds a predetermined limit, a nose extension of the slip carrier moving toward and directly engaging the slip as the slip arm partially collapses allowing further transmission of the deploying force exceeding the predetermined limit from the slip carrier to the slip via the nose extension to centralize the liner hanger(s). In a related embodiment of the present invention, spaced-apart first and second liner hangers may cooperate to allow the liner to be employed as a drill guide. | ||||||
| 187 | Diverter, diverter retrieving and running tool and method for running and retrieving a diverter | US380899 | 1995-01-30 | US5499680A | 1996-03-19 | Jeffrey S. Walter; John C. Gano; Desmond Jones |
| A diverter for a subterranean well, a diverter retrieving tool and methods of diverting objects traversing the well and retrieving the diverter. The diverter comprises: (1) a body having a lower portion adapted to be coupled to a diverter anchoring structure and an upper portion having a slanted diverting surface, the diverter adapted to be placed within a main borehole of the subterranean well at a predetermined location and orientation proximate a junction of a lateral borehole with the main borehole, the slanted diverting surface adapted to redirect an object having a particular diameter and coming into contact with the diverter into the lateral borehole and (2) a compliant spring member associated with the slanted diverter surface. The spring member is resiliently retractable toward the slanted diverter surface to allow the object to traverse the junction and enter the lateral borehole, the diverter therefore dynamically adjustable to compensate for an insufficient minimum diameter of a selectable one of the main borehole, junction and lateral borehole. The diverter is configured to receive a flexible finger of the retrieving tool into a central longitudinal shaft therein to engage and retrieve the diverter without having to orient the retrieving tool. | ||||||
| 188 | Drag block for increasing the fluid resistance of well production tubing inadvertently dropped in a cased hole of an oil or gas well | US60012 | 1993-05-07 | US5372192A | 1994-12-13 | George C. Bitting |
| The present invention pertains to a drag block that is attached over the exterior of, or screwed onto as an integral part of, oil well production tubing to increase the fluid resistance of the tubing. The increased fluid resistance of the tubing slows its descent through an oil or gas well filled or partially filled with fluid, thereby reducing the risk of damage to the casing, tubing or the well itself when a string of production tubing is inadvertently dropped through the well and hits bottom. | ||||||
| 189 | Pipe system with electrical conductors | US859367 | 1992-06-18 | US5334801A | 1994-08-02 | Frank Mohn |
| A pipe system comprises a plurality of pipe members (2), mechanical connections at the end regions of the pipe members whereby the pipe members can be connected together into end-to-end relationship to provide at least one fluid flow path along them, and electrical conductors (10; 110) carried by the pipe members, the electrical conductors having contact areas (19) exposed at the end regions of the pipe members so that electrical connection between the conductors of adjacent pipe members can be effected by bridging members (25) spanning the end regions of the pipe members. | ||||||
| 190 | Rod insertion method and friction reducing device | US845418 | 1992-03-03 | US5265466A | 1993-11-30 | David L. Richter; William T. Sweeney |
| The present invention provides a friction reducing device for an elongate member. The device comprises a friction reducing sleeve removably positionable on a first longitudinal segment of the elongate member. The present invention also provides a method of inserting an elongate assembly into the ground. The method comprises the step of incorporating the inventive friction reducing device in the elongate assembly. | ||||||
| 191 | Orienting tool for slant/horizontal completions | US693442 | 1991-04-29 | US5107927A | 1992-04-28 | Thomas G. Whiteley; John M. Jackson |
| A positioning tool is combined with a completion tool, for example a sand screen, for positioning the completion tool substantially within the lower half of a horizontal well casing member, and for automatically orienting the working face of the completion tool with respect to a predetermined sidewall portion of the well casing member. The orienting tool includes an annular roll collar which supports the completion tool off of the bottom of the horizontal well casing member, and a pair of radially projecting orienting vanes which limit rolling movement by engaging the upper bore of the well casing member. | ||||||
| 192 | Method and apparatus for lateral drilling in oil and gas wells | US862246 | 1986-05-12 | US4699224A | 1987-10-13 | Michael B. Burton |
| A method and associated apparatus for lateral drilling in an oil and/or gas well involving either stopping the drilling or temporarily cementing in a plug in the existing well bore at the desired location for deviation. A tight radius of curvature is then rotary drilled by use of a flexible drilling collar made up of a series of short drill string sections interconnected by universal joints that terminate within an eccentric collar on the final drill string section. The eccentric collar is equipped with a sidewall engaging means to hold the eccentric collar from rotating during rotary drilling. A flexible collar (e.g., ball and socket) extending outwardly and downwardly from the far end of the final drill string section passing through the eccentric collar connects to a drill bit collar and rotary drill bit. A stabilizer/reamer of essentially the same size or slightly larger diameter than the drill bit surrounds the drill bit collar, thus producing a fulcrum for tilting the drill bit perpendicular to the well bore. The eccentric collar on the last drill string section that engages the well bore forces the deflection of the drill bit about the fulcrum and holds this orientation as the rotating drill proceeds forward. Such a technique can achieve a twelve foot radius of curvature in an existing oil or gas well bore for establishing lateral drain holes essentially horizontal to the otherwise vertical well bore. | ||||||
| 193 | Detachable apparatus for preventing differential pressure sticking in wells | US476082 | 1983-03-17 | US4602690A | 1986-07-29 | Ronald P. Steiger |
| A removable porous layer is placed on the outside of various well implements. The layer allows movement of liquid toward sites of localized low pressure and therefore prevents differential pressure stickage of the well implements on the borehole wall. | ||||||
| 194 | Blind shaft drilling | US303511 | 1981-09-18 | US4516633A | 1985-05-14 | Paul Richardson; Daniel C. Albers; David A. Whitley |
| In the mining of various minerals from the earth, large mining shafts extending from the surface down to the deposited mineral layers or seams in the earth can be provided through the use of large diameter bore hole drilling equipment. With the drilling equipment stationed on the surface of the earth, a drilling member is drilled down into the earth for forming a shaft in excess of 10 feet to a depth of at least 2000 feet. As the earth is broken up during the drilling operation, the broken fragments are removed from the drilled hole by a reverse circulation drilling operation. During the drilling operation, the drilling bit is maintained in proper alignment with the shaft being drilled by the use of non-rotating stabilizers having an outer diameter substantially equal to the diameter of the hole being drilled. By maintaining fluid at a sufficient level in the drilled hole during the drilling operation, an adequate hydrostatic head can be created for exerting an opposing pressure on any zone of instability on the walls of the drilled hole for preventing inflow of water and debris. | ||||||
| 195 | Method and apparatus for shaft support for turbine pumps | US5993 | 1979-01-24 | US4448551A | 1984-05-15 | Reuel A. Murphy |
| This is a method for supporting a pump shaft, or the like, within a tubing wherein bearing supports are provided which can be inserted and removed from the tube for maintenance purposes, or the like, with or without disturbing the location of the tube, and wherein the method is practiced by utilizing expanding bushings within the tubing, which bushings will support a shaft extending through the bushings. The bushings are caused to clamp to the internal surface of the tubing by means of an expandable split sleeve as a part of each such bushing which is normally of a smaller size than the interior of the tubing, but which is caused to expand by having a tapered inner surface which is forced upward on a tapered supporting surface by means of a threaded sleeve and, thus, is caused to expand against the interior of the tubing. | ||||||
| 196 | Tool centralizer guide having a J-groove release | US795950 | 1977-05-11 | US4135577A | 1979-01-23 | Paul M. Nelson; Carl P. Hutchinson |
| A centralizer apparatus for guiding, within a well bore, a tool having a radially outwardly extending member thereon includes a sleeve concentrically disposed about the tool. The sleeve has a downwardly opening, substantially J-shaped groove therein sized to receive the radially outwardly extending member on the tool about which the sleeve is disposed. The J-groove has a first, closed, axially-extending slot portion and a second, axially-extending slot portion opening at the downstring end of the sleeve. The first and second axially extending slot portions of the J-groove are spaced circumferentially apart and communicate through a substantially transverse slot portion. An outer protective jacket is provided about the sleeve. A centralizer guide depends from the lower end of the jacket to contact the walls of the bore and maintain the tool centrally with respect thereto. | ||||||
| 197 | Drill string and drill collar therefor | US41423973 | 1973-11-09 | US3856096A | 1974-12-24 | WILLIAMS E |
| A drill string and drill collar therefor used in rotary drilling of a borehole through earth formations to substantial depths wherein the drill string includes an elongated tubular drill stem having a longitudinal axis and opposite ends thereof adapted for connection between a drill bit and a column of drill pipe to provide a drill stem for the drill bit. The drill stem has an upper end portion having a pad or pads secured thereon and extending around a minor portion of the peripheral surface thereof and the pad or pads each have a face for wiping contact with a wall of the borehole to provide lateral support for the upper end portion of the drill stem which also has a lower end portion which may have a pad secured thereon and extending around a minor portion of the peripheral surface thereof and the pad on the lower end portion when used is in longitudinal alignment with the pad on the upper end portion. The drill stem has an intermediate portion having a smaller cross section than the cross section of the upper end portion and the lower end portion. A plurality of longitudinally spaced and aligned pads are secured to the intermediate portion and each pad on the intermediate portion extends around a minor portion of the peripheral surface thereof and the plurality of pads are positioned in diametrically opposed relation with the pads or pad on the upper end portion and the pad on the lower end portion of the drill stem.
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| 198 | Coupling for drill string | US3667252D | 1970-11-02 | US3667252A | 1972-06-06 | NELSON ARTHUR JOHN |
| This dual engaging coupling connects equal segmental lengths of tubing in repeating sequence to form an integrated drill string that is suspended by a thrust bearing means from an immersed buoyant pontoon controlled to regulate the bearing pressure of the lower terminally connected bit upon the bottom of a hole being drilled in subaqueous strata. The primary engagement transmits torque, tension and fluid flow between adjacent ends of the two rigid members. The secondary engagement provides uninterrupted translation of the string through the torque imparting means and power transmission by said repeating sequence whereby a subsequent coupling becomes engaged prior to disengagement of a descending coupling departing from the torquing means. The coupling is adapted to rapid assembly and non-selective of mating ends to preserve axial alignment of the secondary engagement.
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| 199 | Slant drilling tools for oil wells | US3561549D | 1968-06-07 | US3561549A | 1971-02-09 | GARRISON ERSKINE P; TSCHIRKY JOHN E |
| Drill string orienting apparatus for nonrotating drill strings equipped with down hole motors, the orienting apparatus preferably being located between the lower portion of the motor and the bit sub and having a laterally projecting portion engageable with the hole formation to bias the bit directionally. Also, orienting apparatus on the string above the down hole motor having a portion projecting laterally opposite to the projection of the first mentioned orienting means. Also, a modification wherein symmetrical stabilizing means is located adjacent the lower end of the motor and laterally disposed directional orienting means is located above the down hole motor in spaced relation to the stabilizing means.
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| 200 | Drilling apparatus | US64876267 | 1967-06-26 | US3391751A | 1968-07-09 | CARO MICHAEL R |
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