| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Apparatus and methods for jarring | US09982919 | 2001-10-18 | US06640899B2 | 2003-11-04 | Cory D. Day; Ronnie Day; Cameron Jackson |
| A jarring tool uses a button member to control the jarring sequence used to free an object lodged in a well bore. A preferred tool includes an anvil having a sleeve portion adapted to enter a bore of a hammer. The button member allows selective entry of the anvil sleeve into the hammer bore. A preferred telemetry link includes two or more at least partially conductive members in a telescopic relationship for exchanging electrical signals with the object. The members extend and retract to accommodate length changes of the jarring tool. An exemplary jarring sequence includes a loading phase, a release phase, and a reset phase. In the loading phase, the button member prevents hammer movement toward the anvil. During the release phase, the button member allows the hammer to be propelled against the anvil. In the reset phase, the hammer and button returns to their initial positions. | ||||||
| 162 | Abnormal torque absorber for drilling | US09380895 | 1999-09-11 | US06543556B1 | 2003-04-08 | Edwin A. Anderson |
| A torque shock absorber apparatus (39) comprised of a mandrel (2) and cylinder (8) with torque absorbing mechanism (8-12, 27) to absorb excessive torque while permitting the transmission of rotational energy to the drill string is connected in the drill string or as the drive mechanism in a jar or accelerator (40) to prevent excessive torque loading of the drill string. | ||||||
| 163 | Well casing installation and removal apparatus and method | US10122638 | 2002-04-15 | US20020157868A1 | 2002-10-31 | John F. Allyn; Walter G. Allyn |
| A downhole well drilling apparatus includes an above-ground mast and an axially elongated generally cylindrical pneumatic hammer drill supported by the mast and mounted in an axially vertical above-ground position. An installation and removal adapter mounted on the lower end of the pneumatic hammer drill couples the hammer drill to a pipe string and maintains a movable part of the hammer drill in an operative condition at all times thereby enabling the hammer drill to operate while rotational torque and upward directed force are simultaneously applied to the operating hammer drill by the apparatus during removal of a casing from a downhole position. Hammer operation is controlled by a manually operable air supply valve. | ||||||
| 164 | Downhole anchoring tools conveyed by non-rigid carriers | US10008761 | 2001-11-08 | US20020053434A1 | 2002-05-09 | Kuo-Chiang Chen; James S. Almaguer; Simon L. Farrant |
| An apparatus and method provides an anchoring apparatus for use in a wellbore that comprises a gripping assembly and an actuation assembly. In one arrangement, the actuation assembly includes a motor and a module having at least a compressible element (e.g., a hydraulic module) between the motor and the gripping assembly. Upon activation, the motor actuates the hydraulic module to cause activation of the gripping assembly. In one arrangement, the anchoring apparatus is designed to pass through a tubing or other restriction in the wellbore. When in the retracted state, the gripping assembly of the anchoring apparatus has an outer diameter that is smaller than an inner diameter of the tubing. When in the expanded state, the gripping assembly of the anchoring apparatus has an outer diameter than is substantially the same as the inner diameter of the liner to enable engagement of the gripping assembly against the liner. | ||||||
| 165 | Cable overshot apparatus | US184998 | 1998-11-03 | US6109373A | 2000-08-29 | Robert E. Able |
| The overshot apparatus includes a head subassembly coupleable to the overshot coupling device of an inner tube assembly, a jar subassembly having an outer swivel end portion for having a wire line attached thereto and a tubular member and a cable subassembly having an axially elongated cable, an axial outer cable mount mounted to the tubular member with the cable extended therethrough and into the tubular member and providing a jar head, and an axial inner cable mount providing a jar member mounting the cable to the head subassembly and having the jar head delivering hammering blows thereto. The cable is of a rigidity for being movable into the tubular member to permit the jar head moving delivering a hammering blow to the jar member and a spread apart position. The cable is of a flexibility that when the subassemblies are in a spread apart position and the overshot assembly is being lowered with an inner tube assembly coupled thereto, the cable is arcuately bendable as the inner tube assembly is moved from a vertical condition to a horizontal position on the ground with the central axes of the subassemblies extending less than about 135 degrees relative to one another. | ||||||
| 166 | Multi-impact jarring apparatus and method for using same | US611992 | 1996-03-05 | US5875842A | 1999-03-02 | Wilfred B. Wyatt |
| A multi-impact jarring apparatus for retrieving objects stuck within a well bore comprises (1) an operating mandrel reciprocatively mounted within an upper housing attached to a fishing operating string, the mandrel acting as a hammer against the housing for creating a series of successive upwardly directed impact forces, (2) a releasable spring compressible between the mandrel and an upper portion of the housing and responsive to tension applied to the operating string, (3) releasable latching means for releasing the mandrel from the upper portion of the housing when the latching means is moved past a preset release position. The movement of the mandrel responsive to tensional force of the operating string allows for sudden release of the release spring and causes sudden upward movement of the mandrel resulting in impact of the mandrel against the upper portion of the housing and in immediate reposition of the latching means to reconnect the mandrel and a bottom portion of the upper housing body. Continued movement of the mandrel responsive to tensional force in the operating string repeats the impact and movement can be continued through a preset number of impact cycles. A second mandrel reciprocatively mounted within a lower housing can achieve successive downward impacts through a preset number of impact cycles. | ||||||
| 167 | Pump barrel valve assembly including seal/actuator element | US625205 | 1996-04-01 | US5628624A | 1997-05-13 | Joe A. Nelson, II |
| Disclosed is an assembly for unseating a seated traveling valve ball, and pumps utilizing such an assembly. The assembly generally includes a tubular member having therein a piston with an actuator for engaging the ball. Mechanical advantage is provided either by providing a sealing area of the piston that is greater than the sealing area of the seat valve and/or by providing a engaging member suitable to strike to seated ball asymmetrically with respect to the vertical axis through the center line of the ball. | ||||||
| 168 | Jar enhancer | US187707 | 1994-01-27 | US5425430A | 1995-06-20 | Billy J. Roberts |
| There is disclosed a tool for enhancing the impact delivered to an object stuck in a well bore by means of a jar having a first tubular member connected to the object and a second tubular member having a hammer arranged to deliver an upward blow to an anvil on the first member in response to raising and a downward blow in response to lowering of the second tubular mandrel member with respect to the first member, the tool comprising a first tubular member having a lower end adapted to be connected to the second tubular member of the jar for raising and lowering therewith, a second tubular member vertically reciprocable with respect to the first member to form on annular space between them and having an upper end adapted to be connected to a well pipe string above it, and first and second sets of upper and lower longitudinally spaced seal rings within the annular space and sealably slidable with respect to equal diameter portions of each of the tubular members to form upper and lower fluid chambers between the upper and lower seal rings, and shoulders on the tubular members in the annular space so arranged that, upon filling of the chambers with a compressible fluid, raising of the second member will compress the fluid in the upper and lower chambers to enhance the impact of an upward jar and lowering of the second member will compress the fluid in the lower chamber to enhance the impact of a downward jar. | ||||||
| 169 | Upstroke jar | US859581 | 1992-03-27 | US5267613A | 1993-12-07 | Klaas J. Zwart; Colin McHardy |
| An upstroke jar for use in downhole operations in an oil or gas well and for connection between a wireline and a tool comprises a casing defining an anvil and for connection to the tool, a hammer slidable axially within the casing for impacting with the anvil and for connection to the wireline, a hammer holder, a spring arrangement located between an abutment on the casing and an abutment on the hammer holder for compression on an operative movement of the hammer holder as a consequence of tension on the wireline and a connector releasable to free the hammer from the holder at the completion of the operative movement so that the freed hammer may impact with the anvil. The compression load on the spring present at the release is dependant on the extent of the operative movement from a rest position and the degree of compression of the spring means to obtain the operative movement. Adjustment of the release load present at the instant the hammer part is released by the connector is provided. | ||||||
| 170 | Hydro-recocking down jar mechanism | US754567 | 1991-09-04 | US5170843A | 1992-12-15 | William T. Taylor |
| A mechanical down jar and method for its use in releasing stuck objects within a well bore and for conducting other downhole servicing operations. The mechanical down jar mechanism incorporates a tubular body having fixed anvils and telescoping mandrels at each end, the lower of which is connected to the stuck object. An internal load spring is released upon application of predetermined downward force to the housing by a firing lug and firing ring release mechanism having an adjustable release force. When released the lower anvil of the housing is rapidly moved downwardly by the force of the load spring and impacts with significant force against the force transmitting sub of the lower mandrel thus transmitting downwardly directed shock force to the stuck object. | ||||||
| 171 | Remotely adjustable fishing jar and method for using same | US712564 | 1991-06-10 | US5156211A | 1992-10-20 | Wilfred B. Wyatt |
| A remotely-adjustable, downhole fishing jar of the mechanical type is used within a well bore for freeing stuck pipe or tools. The jar, while downhole, can be set or reset by an operator at the surface for each firing stroke for any desired impact force within the capability of the finishing string to apply tension to the jar. A selected amount of tension to the fishing string is applied by the operator to set in a mechanical memory of the jar the desired impact force. | ||||||
| 172 | Mechanical down jar mechanism | US625113 | 1990-12-10 | US5069282A | 1991-12-03 | William T. Taylor |
| A mechanical down jar and method for its use in connection with coil tubing and with jointed tubing for releasing stuck objects within a well bore for installing coil tubing within deviated and horizontal well bores and for conducting other downhole servicing operations. The mechanical down jar mechanism incorporates a tubular body of significant mass having fixed anvils and telescoping mandrels at each end. The lower mandrel is adapted for connection to the stuck object. An internal load spring is released upon application of predetermined downward force to the housing by a firing lug and firing ring release mechanism having an adjustable release force. When released the housing with its lower anvil is rapidly moved downwardly by the force of the load spring and an accelerator spring impacts with signficant force against the force transmitting sub of the lower mandrel thus transmitting downwardly directed shock force to the stuck object or to tubing to be moved downwardly. By simple linear reciprocating movement of the jar operating tubing one or more down jars may be repeatedly recooked and fired as many times as is desired to move the object downwardly to the desired location within the well bore. | ||||||
| 173 | Extraction device for pneumatically actuated drilling tools | US640571 | 1991-01-14 | US5065823A | 1991-11-19 | Abraham Gien; Bernard L. Gien |
| The invention relates to an extraction device used for extracting pneumatically actuated impact tools and the like from boreholes. The device includes a carrier member 1, a reciprocable hammer 2, and a sleeve, 13. The carrier is adapted to be connected to a drill rod secton. Reciprocation of the hammer relative to the carrier may be used to effect extraction. Fluid passages are provided for conveying fluid under pressure through the device in order to cause the hammer to reciprocate. | ||||||
| 174 | Jar mechanism | US542164 | 1990-06-22 | US5052485A | 1991-10-01 | Michael A. Reid |
| A jar mechanism is described, which comprises a piston (5) movably mounted in a fluid chamber (9). A jar member (2) is releasably coupled to the piston (5) by a release device (3, 4; 3, 38, 39, 40, 54, 64) so that when the piston (5) is in a first position in the fluid chamber (9), the jar member (2) is coupled to the piston (5) by the release device (3, 4; 3, 38, 39, 40, 54, 64). A first force exerted on the jar member (2) moves the piston (5) to a second position within the fluid chamber (9) against the resistance of the fluid (11). When the piston (5) is in the second position, the action of the first force applied to the jar member (2) actuates the release device (3, 4; 3, 38, 39, 40, 54, 64) to enable the jar member (2) to be uncoupled from the piston (5). | ||||||
| 175 | Jar mechanism accelerator | US99350 | 1987-09-21 | US4846273A | 1989-07-11 | Edwin A. Anderson; Derrel D. Webb |
| An energy accumulator for use with a well pipe string to enhance the jarring impact delivered to an object stuck in a well bore by an up and/or down jar mechanism includes inner and outer telescopically connected members relatively movable longitudinally to accumulate energy in a mechanical spring arrangement, gas or compressible liquid in the accumulator. Cooperating surfaces on the inner and outer members of the energy accumulator assure that the jarring impact of the jar mechanism members is delivered to the stuck independently of the tensile or compressive load applied to the object jar mechanism and independently of the load rate of accumulating energy in the energy accumulator. | ||||||
| 176 | Mechanical jarring devices for use in drilling | US846585 | 1986-03-31 | US4694917A | 1987-09-22 | Gerhard Heidemann; Johannes Witte |
| A jarring device for use in drilling comprises first and second members longitudinally relatively movable between a locked position and a released position said device comprising control means including a pair of locking devices each arranged to prevent relative movement between said members until a predetermined force is applied to one of said movable members in either of two longitudinal directions. The control means includes two locking devices each of which locks in one of the two directions.The locking devices may comprise pivotable bolts pivoted on a sliding member so that the free ends of the bolts contact an abutment on one of the movable members to effect locking, the bolts being retracted from engagement with the abutment by movement of the sliding member. | ||||||
| 177 | Mechanical jarring tool | US410751 | 1982-08-23 | US4463815A | 1984-08-07 | Rainer Jurgens; Dietmar Krehl |
| Adjustable torsional type latching means (5) for triggering a mechanical well jar tool comprises torsionally actuated gear racks (20,22) including acme threads or teeth which extend axially on opposite adjacent side portions of telescopic parts (1,2). The gear rack teeth which mesh in the latched position have incline tooth faces that can be disengaged by applying a strong axial force which torsionally stresses and rotates a torsion sleeve (16) portion of one telescoping part (1) and gear rack (20) thereon away from the other part (2) and gear rack (22). Upon release of the latching device (5) the telescopic parts (1,2) of the well jar and the kinetic energy stored therein are freed for a limited longitudinal jarring movement. The torsion sleeve portion (16) has an end portion connected to the other telescopic parts by a second slot-spline-gear (15) of relative short axial length, which serves as a torque support in the latched position and becomes deengaged during a jarring stroke. The second slot-spline-gear (15) is separated and disconnected, by means of a rotatable connection (7) between the opposite end of the torsion sleeve portion (16) and the attached telescopic part (1), from the conventional primary slot spline gear (14) which, usually transmits the rotary drive torque between the telescopic parts (1,2) and thereby rotates the drill string and bit. | ||||||
| 178 | Wire line no-blow tool | US307910 | 1981-10-02 | US4427064A | 1984-01-24 | Michael L. Bowyer |
| No-blow tool for braking rapid upward movement of a pulling tool and the device being retrieved caused by sudden upward fluid flow. The no-blow tool is assembled as part of a wire line tool assembly below jars and above the pulling tool. The no-blow tool includes three telescoping members, the lowest of which is secured to the pulling tool. Rapid upward movement of the pulling tool and the lowest telescoping member relative to the intermediate telescoping member cams serated slips radially outwardly to grip a well conduit, thereby braking the upward movement. A shearable connection between the upper and intermediate telescoping members permits jarring forces to be transmitted downwardly through the tool, without interference from the slip system. | ||||||
| 179 | Pipe joint separation | US229033 | 1981-01-28 | US4396065A | 1983-08-02 | John R. McKenney |
| A shock wave, e.g., from a short time electric arc, is used instead of any explosives to loosen a screw connection between two pipes. | ||||||
| 180 | Drilling jar | US224152 | 1981-01-12 | US4376468A | 1983-03-15 | George M. Clark |
| A drilling jar to be installed in a set of drill collars in a drill string is disclosed. In the illustrated embodiment, first and second tubular members telescope relative to one another. At the upper end of the lower tubular member, a set of protruding lugs match shoulders having undercuts which permit relative rotation of the two tubular members through part of a turn, thereby permitting the two members to axially telescope whereby locking or unlocking the telescoping movement is controlled. The lower tubular member has an upwardly facing shoulder which is abutted against the lower end of the upper tubular member. This permits the two to be reciprocated and banged together to create a jar for the drill string. A dual jarring activity is developed by a cam actuated radially yieldable collet-type release mechanism that allows relative linear movement of the tubular members and permits selected jarring activity independently of or in conjunction with the lugged locking and releasing portions thereof. | ||||||
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