| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Systems and methods for minimizing impact loading in downhole tools | US14365651 | 2013-07-16 | US09617844B2 | 2017-04-11 | Todd Blaine Miller |
| A tool string includes at least one downhole tool having an electronics package associated therewith, and an air shock tool having a housing operatively coupled to the downhole tool. The air shock tool has a piston movably arranged within a piston chamber defined in the housing, and the electronics package is operatively engaged with the piston such that axial movement of the electronics package correspondingly moves the piston. If a shock impact load propagates through the tool string in an uphole direction, the piston operates to reduce the shock impact assumed by the electronics package. | ||||||
| 122 | DOWNHOLE SWIVEL SUB AND METHOD FOR RELEASING A STUCK OBJECT IN A WELLBORE | US15306548 | 2015-03-31 | US20170044843A1 | 2017-02-16 | John Hanton; Jeffrey B. Lasater |
| In certain embodiments, a downhole swivel sub includes a first swivel part configured to connect to a first section of a workstring, and a second swivel part configured to connect to a second section of the workstring. The second swivel part is rotatable relative to the first swivel part. The downhole swivel sub also includes a locking sleeve rotationally coupled with the first swivel part and movable axially between a locking position wherein the first swivel part and the second swivel part are rotationally coupled and an unlocking position wherein the first swivel part is rotatable relative to the second swivel part. The locking sleeve includes at least two first rows of teeth disposed at a same radial position and separated axially on the locking sleeve. The at least two first rows of teeth are configured to engage and disengage with at least two second rows of teeth located on the second swivel part. | ||||||
| 123 | Hydraulic impact apparatus and methods | US14510781 | 2014-10-09 | US09551199B2 | 2017-01-24 | Jason Allen Hradecky |
| A hydraulic jar coupled between opposing first and second portions of a downhole tool string. The hydraulic jar includes a housing comprising a shoulder protruding radially inward from an internal surface of the housing, a shaft disposed within the housing, a piston fixedly positioned about the shaft and fluidly sealed against the shoulder, and a pressure relief device. The housing and the shaft move axially relative to each other and the shoulder axially interposes first and second portions of an annulus formed between the shaft and the housing. The pressure relief device controls fluid flow from the first annulus portion to the second annulus portion based on a pressure of the fluid in the first annulus portion relative to a set pressure of the pressure relief device. | ||||||
| 124 | Electromagnetic Jarring Tool | US15300734 | 2014-05-09 | US20170016300A1 | 2017-01-19 | Leo G. Collins |
| An electromagnetic jarring tool and related systems and methods provide for the use of an electromagnetic system to generate jarring forces within a wellbore. The electromagnetic jarring tool includes a chamber having a first end and a second end, a magnetic hammer disposed within the chamber, and an electromagnet operable to generate an electromagnetic field across at least a portion of the chamber. The magnetic hammer is operable to move toward the second end of the chamber in response to the electromagnetic field to deliver an impact. One or more electromagnets may be included to enhance operation of the tool, and the tool may be actuated by a surface controller that selectively delivers electrical power or a control signal to the tool to specify a mode of operation of the electromagnetic jarring tool. | ||||||
| 125 | Impact Sensing During Jarring Operations | US14639504 | 2015-03-05 | US20160258270A1 | 2016-09-08 | Jason Allen Hradecky |
| A downhole tool having opposing interfaces for incorporation of the downhole tool into a downhole tool string. A housing extends between the opposing interfaces, and a bore extends longitudinally through the housing between the opposing interfaces. An accelerometer is disposed within the bore of the housing for detecting acceleration of the downhole tool in response to a mechanical impact generated elsewhere within the downhole tool string. The accelerometer generates an output signal indicative of the acceleration. The downhole tool also includes a processor for processing the output signal, a memory device for storing the output signal or data generated by the processor, and an electrical energy source powering the processor and the memory device. | ||||||
| 126 | SYSTEMS AND METHODS FOR MINIMIZING IMPACT LOADING IN DOWNHOLE TOOLS | US14365651 | 2013-07-16 | US20160215609A1 | 2016-07-28 | Todd Blaine MILLER |
| Disclosed are systems and methods of minimizing shock impacts assumed by electronics arranged within downhole tools. One disclosed tool string includes at least one downhole tool having an electronics package associated therewith, and an air shock tool having a housing operatively coupled to the at least one downhole tool and having a piston movably arranged within a piston chamber defined in the housing, wherein the electronics package is operatively engaged with the piston such that axial movement of the electronics package correspondingly moves the piston, and wherein a shock impact propagates through the tool string in an uphole direction and the piston is configured to reduce an effect of the shock impact on the electronics package. | ||||||
| 127 | Mechanical force generator for a downhole excitation apparatus | US14002957 | 2012-02-26 | US09322237B2 | 2016-04-26 | Owen Schicker; Mark Christopher Cunliffe |
| An excitation apparatus suitable for use downhole having interengaged masses at least in part confined or guided so as to be movable as an interengaged assembly on an axis, one mass (“rotatable mass”) being rotatable relative to the other mass about the axis to cyclically vary the axial length of the assembly of the interengaged masses, a rotary drive, and an interposed spring (of any kind) between the rotary drive and the rotatable mass able to transmit torque from the rotary drive to the rotatable mass yet vary in its extent responsive to the interengaged masses. | ||||||
| 128 | DOWNHOLE IMPACT GENERATION TOOL AND METHODS OF USE | US14344394 | 2013-04-11 | US20160102514A1 | 2016-04-14 | Todd Blaine Miller; Jack Gammill Clemens |
| Disclosed is an impact generation tool used to deliver a large downhole impact force. The impact generator may include a housing having an uphole end and a downhole end and defining a chamber therein between the uphole and downhole ends, a mandrel movably arranged at least partially within the chamber between an engaged configuration and a disengaged configuration, a top sub coupled to the housing at the uphole end and having an upper core extension arranged at least partially therein, the upper core extension being configured to move between a fixed position, whereby the mandrel is maintained in the engaged configuration, and an unfixed position, whereby the mandrel is able to move to the disengaged configuration, and an impact tool coupled to a distal end of the mandrel and being configured to deliver an impact force to a downhole obstruction when the mandrel is moved to the disengaged configuration. | ||||||
| 129 | Systems and methods to inhibit packoff events during downhole assembly motion within a wellbore | US13717150 | 2012-12-17 | US09291018B2 | 2016-03-22 | Lillard Eugene Korn, Jr.; Pietro Valsecchi |
| Systems and methods to inhibit packoff events during downhole assembly motion within a wellbore comprise a downhole assembly that includes an energy-storing structure that defines a charged state and a discharged state and is configured to generate a motive force upon transitioning from the charged state to the discharged state. A fluidizing stream is generated with the motive force from the energy-storing structure which emits the fluidizing stream from the downhole assembly to fluidize a portion of a cuttings bed that may be within the wellbore and proximal to the downhole assembly. | ||||||
| 130 | Jarring Tool | US14762786 | 2014-01-30 | US20150361751A1 | 2015-12-17 | Serko Sarian |
| A jarring tool that includes a first portion and a second portion. An impact point is located between the first portion and the second portion. The jarring tool has an internal energy source that generates an internal force to move one of the portions or an inner mass to cause a jarring force. | ||||||
| 131 | FRICTION STIRRING AND ITS APPLICATION TO DRILL BITS, OIL FIELD AND MINING TOOLS, AND COMPONENTS IN OTHER INDUSTRIAL APPLICATIONS | US14598657 | 2015-01-16 | US20150258628A1 | 2015-09-17 | Richard A. Flak; Scott M. Packer; Russell J. Steel; Monte E. Russell; Brian Taylor |
| A method of processing a downhole tool includes friction stirring at least a portion of a steel surface of the downhole tool. | ||||||
| 132 | Sealed jar | US13621576 | 2012-09-17 | US09103186B2 | 2015-08-11 | Jason A. Hradecky; John Edward Saville |
| A device has a first, lower sub housing, a second, upper sub housing, and an extensible joint connecting the lower sub housing to the upper sub housing. A pressure equalization chamber is attached to the upper sub housing and demarcates an inner zone including an internal mechanism of the extensible joint, and an outer zone open to well bore fluids and pressure. A fluid barrier moves within the pressure equalization chamber in response to changes in well bore pressure to alter a volume of the inner zone to equalize a pressure of the inner zone. | ||||||
| 133 | WIRELINE DOWN JAR | US14065091 | 2013-10-28 | US20150114643A1 | 2015-04-30 | Keith McNeilly |
| A jar assembly for use downhole includes a housing, a piston assembly slidable within and selectively coupled to the housing, a mandrel assembly coupled on a lower end of the piston assembly, and an anvil coupled to an end of the mandrel assembly opposite the piston assembly. The jar assembly is deployed in a wellbore by a conveyance means that couples with the housing. A hydraulic circuit in the piston assembly activates a latch for decoupling the piston assembly from the housing; when decoupled, the housing slides downward and impacts the anvil to generate a jarring force. The jar assembly is re-cocked by raising it with the conveyance means. | ||||||
| 134 | Apparatus and Methods for Clearing a Subsea Tubular | US14491505 | 2014-09-19 | US20150090459A1 | 2015-04-02 | Jeremy David Cain; Charles Michael Scroggins |
| An embodiment of a tool for clearing a deposit within a fluid flowline, including a body having a central axis, a first end, a second end opposite the first end, and a radially outer surface extending axially from the first end of the second end. In addition, the tool includes a first energy element coupled to the first end, and an electrode extending radially from the radially outer surface of the body. The first energy element and the electrodes are each configured to emit energy to dissipate the deposit in the fluid flowline. | ||||||
| 135 | Apparatus and method for adjusting spring preload in a downhole tool | US13295350 | 2011-11-14 | US08783354B2 | 2014-07-22 | Mark Sheehan; Jonathan Prill; Jeffery Clausen |
| Apparatus and method for adjusting spring preloading in a downhole tool. In an apparatus, a mechanism includes a nut and a piston. The nut is configured to axially compress a spring in the downhole tool. The piston is coupled to the nut. Extension of the piston causes the nut to rotate and compress the spring. The nut is configured to maintain compression of the spring after the piston retracts. | ||||||
| 136 | Double-Acting Shock Damper for a Downhole Assembly | US13343108 | 2012-01-04 | US20130168092A1 | 2013-07-04 | Robert W. EVANS |
| A downhole assembly, including a downhole tool, a downhole force-creating device, and a shock damper. The shock damper includes a hollow housing including an annular shoulder near each end and extending radially inward from the housing. The damper also includes a mandrel located at least partially inside the housing to form an annulus between the mandrel and the housing, the mandrel including an annular shoulder near each end and extending radially outward from the mandrel. A spring is located in an annular cavity formed by the annulus and between both the housing shoulders and the mandrel shoulders. The mandrel is movable relative to the housing to an expanded position in one direction and to a compressed position in the other direction. | ||||||
| 137 | Jarring tool with micro adjustment | US12850413 | 2010-08-04 | US08418758B2 | 2013-04-16 | Jason A. Hradecky |
| A jarring tool is disclosed. The tool has a segment of sub housing containing an upper stop proximate a first end thereof. An outer latch piece is connected to an upper end of the lower shaft inside the sub housing, and an upper shaft passes through the stop and connects on a first end thereof to an inner latch piece. A cap is on a second end of the upper shaft retaining a washer stack against the upper stop. A retainer is inside the sub housing and has an first piece providing a restraining region and an open region and a second piece attached to the sub housing. The retainer retains the inner and outer latch pieces in a latched position in the restraining region until the latch pieces are displaced toward the second end of the sub housing through the retainer to the open region as a result of a tensile force on the outer latch piece. | ||||||
| 138 | Tools and methods for hanging and/or expanding liner strings | US12436073 | 2009-05-05 | US08286717B2 | 2012-10-16 | Richard L. Giroux; Michael Lynch; Lev Ring |
| Embodiments of the invention generally relate to tools and methods for hanging and/or expanding liner strings. In one embodiment, a method of hanging a liner assembly from a previously installed tubular in a wellbore includes running the liner assembly and a setting tool into the wellbore using a run-in string. The setting tool includes an isolation valve and the liner assembly includes a liner hanger and a liner string. The method further includes sending an instruction signal from the surface to the isolation valve, wherein the isolation valve closes in response to the instruction signal and isolates a setting pressure in the setting tool from the liner string; and increasing fluid pressure in the setting tool, thereby setting the liner hanger. | ||||||
| 139 | Downhole jarring tool | US12632411 | 2009-12-07 | US08191626B2 | 2012-06-05 | Jason A. Hradecky |
| A tool having a first lower sub end, a second upper sub end, and an extensible joint connecting the first and second sub ends. The joint has a first inner latch piece connected to the lower sub end, and a second outer latch piece connected to the upper sub end, and a stationary restraining collar. The joint, in a latched position, has the outer latch piece latched to the inner latch piece and the inner and outer latch pieces restrained from unlatching by the restraining collar. The joint, under tensile force, unlatches into an unlatched position by the inner latch piece pulling the outer latch piece through the restraining collar into a position where the inner and outer latch pieces are free to separate. An impact force is generated from the tensile force when the joint unlatches and reaches a maximum extension. | ||||||
| 140 | Jars for Wellbore Operations | US12822987 | 2010-06-24 | US20100258314A1 | 2010-10-14 | Dwight Rose |
| An example of an apparatus for jarring a wellbore tool from an obstruction includes four sub-assemblies in communication with three springs such that the springs may be compressed forcing the subassemblies to become adjacent to one another. When the springs are actuated, the sub-assembly units spring apart from one another force dislodging the lower most sub-assembly component from the obstruction. | ||||||
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