| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Devices, Systems and Methods for Equalizing Pressure in a Gas Well | US12388211 | 2009-02-18 | US20100206568A1 | 2010-08-19 | Michael A. Dowling; Jason Kamphaus; Harryson Sukianto; Alain P. Dorel; Joseph Varkey |
| Devices, systems and methods for equalizing pressure in a gas well are provided. A jar device is coupled to a pump deployed in a gas well between areas of low pressure and high pressure. The jar device includes a mandrel and a no-go sleeve. A jarring tool is operated to transfer an axial force onto the jar device that is large enough to shear a shearable connection between the mandrel and no-go sleeve and thereby cause the mandrel to slide from a first position to a second position with respect to the no-go sleeve. A seal that seals between the no-go sleeve and mandrel when the mandrel is located in the first position is unsealed as a result of the movement of the mandrel and thereby fluid communication is allowed between the area of high pressure and low pressure. This allows for easier retrieval of the pump. | ||||||
| 142 | Jars for wellbore operations | US11983979 | 2007-11-13 | US07775280B2 | 2010-08-17 | 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. | ||||||
| 143 | SIGNAL OPERATED TOOLS FOR MILLING, DRILLING, AND/OR FISHING OPERATIONS | US12436077 | 2009-05-05 | US20090266544A1 | 2009-10-29 | Thomas M. Redlinger; Thomas Koithan; Christopher M. Vreeland; Wesley Don Heiskell; Andrew Antoine; Scott McIntire |
| Embodiments of the present invention generally relate to signal operated tools for milling, drilling, and/or fishing operations. In one embodiment, a mud motor for use in a wellbore includes: a stator; a rotor, the stator and rotor operable to rotate the rotor in response to fluid pumped between the rotor and the stator; and a lock. The lock is operable to: rotationally couple the rotor to the stator in a locked position, receive an instruction signal from the surface, release the rotor in an unlocked position, and actuate from the locked position to the unlocked position in response to receiving the instruction signal. | ||||||
| 144 | Combination jar and disconnect tool | US11256306 | 2005-10-21 | US07395862B2 | 2008-07-08 | Richard J. Ross; Dewayne M. Turner |
| A combination jarring tool and disconnect device is disclosed in which the jarring events may be followed by separate disconnect event, or in which the jarring events may coincide with disconnect events. The tool generally comprises a housing and a sleeve in concentric arrangement and a disconnect interface. A plurality of axial and rotational locks is used to prevent premature energization of the jarring and disconnect events. | ||||||
| 145 | Apparatus and Method | US11794845 | 2006-02-03 | US20080128168A1 | 2008-06-05 | Daniel Purkis; Iain MacLeod; Stephen Reid |
| The present invention provides an apparatus (10) and method for transmitting torque to a downhole device. The apparatus (10) comprises a first part and a second part adapted for connection to the downhole device. The apparatus (10) also comprises an engagement means (100, 120). The first and second parts are connected together such that relative axial movement between the first and second parts is constrained on a helical path. The engagement means (100, 120) are arranged to rotationally connect the first and second parts to thereby transmit torque from the first part to the second part when a coupling point is reached on the helical path. | ||||||
| 146 | Downhole intelligent impact jar | US11899933 | 2007-09-08 | US20080087424A1 | 2008-04-17 | Stuart McLaughlin |
| An intelligent downhole impact jar device is described that is able to sense well bore angle or deviation and alter the effective jar impact load based upon the sensed information. The impact jar device includes a jarring portion for creating jarring impacts within a wellbore toolstring. The jarring portion is adjustable so that jarring forces of various levels can be produced. The jarring portion is adjusted in response to sensed wellbore conditions, such as the angle of deviation of the surrounding wellbore. | ||||||
| 147 | Downhole drill string having a collapsible subassembly and method of loosening a stuck drillstring | US10521346 | 2003-07-10 | US07299885B2 | 2007-11-27 | Jeffery D. Baird |
| A method and apparatus for allowing a downhole drill string to be stuck at one location and continue to rotate above the stuck section. The apparatus provides a method for collapsing the stuck subassembly by reducing its outside diameter. Simultaneous with the subassembly collapse, a jarring action is initiated from within the drill string to further loosen the stuck sections. At the same time drilling fluid inside the string is allowed to circulate outside the string through a circulation sub. The fluid is forced around the stuck subassembly further increasing the likelihood that the subassembly will be freed. | ||||||
| 148 | Downhole resettable jar tool with axial passageway and multiple biasing means | US10757254 | 2004-01-13 | US07267176B2 | 2007-09-11 | Raymond Dale Madden |
| A wireline jar tool delivers instrument packages into wellbores and retrieves tools when they get stuck. The jar has several stored spring chambers connected to accelerate an upper spring chamber away from a stuck lower carrier chamber that supports instrument packages. Wireline tension actuates the jarring action and then lowers a sinker bar for reset as many times as required to incrementally jar the un-stick fish uphole. The wire line connects to a conductor that extends inside the tool through a main operating shaft, release coupling, hammer and anvil, lost motion coupling, into the lower chamber where the end connects to the instruments for communication to the surface. A small wireline tension provides unexpected large impact forces. | ||||||
| 149 | Downhole impact generator and method for use of same | US11326229 | 2006-01-05 | US20070151732A1 | 2007-07-05 | Jack Clemens; Jerry Foster; Robert Thurman |
| A downhole impact generator (60) is adapted to be moved to a target location within a wellbore (68) for transmitting a jarring force to a well tool (72) positioned in the wellbore (68). The downhole impact generator (60) includes a downhole power unit (62) having a moveable shaft (66) and a jarring tool (64). The jarring tool (64) is operably engageable with the well tool (72) and is operably coupled with the moveable shaft (66) of the downhole power unit (62) such that when the jarring tool (64) is operably engaged with the well tool (72), linear movement of the moveable shaft (66) energizes the jarring tool (64) such that a jarring force can be transmitted by the jarring tool (64) to the well tool (72). | ||||||
| 150 | Field adjustable impact jar | US10696823 | 2003-10-30 | US07111678B2 | 2006-09-26 | Fay McElroy; James Burnthrone, Jr.; Lonnie Guidry |
| An impact jar including a biasable member, an impactor and an impactee slidably coupled to the impactor. The impactor includes a first down-hole tool connector. The impactee includes a second down-hole tool connector distal from the first down-hole tool connector and a plurality of flexible coupling fingers. The biasable member is detachably engaged by the plurality of flexible coupling fingers in a pre-impact position and is configured to disengage the plurality of flexible coupling fingers in response to a tensile force applied across the first and second down-hole tool connectors reaching a predetermined quantity. The impactor and the impactee are configured to impact in response to the disengagement of the biasable member and the plurality of flexible coupling fingers. In one embodiment, the impact jar may be employed in either of e-line and slickline applications. | ||||||
| 151 | Combination jar and disconnect tool | US11256306 | 2005-10-21 | US20060086505A1 | 2006-04-27 | Richard Ross; Dewayne Turner |
| A combination jarring tool and disconnect device is disclosed in which the jarring events may be followed by separate disconnect event, or in which the jarring events may coincide with disconnect events. The tool generally comprises a housing and a sleeve in concentric arrangement and a disconnect interface. A plurality of axial and rotational locks is used to prevent premature energization of the jarring and disconnect events. | ||||||
| 152 | Methods and apparatus to control downhole tools | US10725124 | 2003-12-01 | US07025130B2 | 2006-04-11 | Thomas F. Bailey; Michael Nero; Timothy L. Wilson |
| The present invention generally provides a downhole tool with an improved means of transmitting data to and from the tool through the use of wired pipe capable of transmitting a signal and/or power between the surface of the well and any components in a drill string. In one aspect, a downhole tool includes a body, and a mandrel disposed in the body and movable in relation to the body. A conducive wire runs the length of the body and permits signals and/or power to be transmitted though the body as the tool changes its length. | ||||||
| 153 | Jar with adjustable trigger load | US10700702 | 2003-11-04 | US06988551B2 | 2006-01-24 | Robert W. Evans |
| A jar provided with an adjustable triggering load has a housing defining an anvil surface and a mandrel, movable relative to the housing under an applied load, defining a hammer surface to impact the anvil surface. A trigger mechanism for releasing the mandrel to cause the hammer surface to impact the anvil surface includes a trigger sleeve axially positioned within the housing and a collet that engages the mandrel during application of a load to the mandrel. The collet releases the mandrel to cause the hammer surface to impact the anvil surface upon being moved into registration with the trigger sleeve against the resistance of the spring disposed within the housing. The triggering load is adjusted by an adjustment mechanism carried by the housing and coupled to the trigger sleeve to selectively position the trigger sleeve within the housing in establishment of a required applied load in order for the collet to be moved against the spring resistance and into registration with the trigger sleeve to thereby release the mandrel and cause the hammer surface to impact the anvil surface. | ||||||
| 154 | Downhole resettable jar tool with axial passageway and multiple biasing means | US10757254 | 2004-01-13 | US20050150693A1 | 2005-07-14 | Raymond Madden |
| A wireline jar tool delivers instrument packages into wellbores and retrieves tools when they get stuck. The jar has several stored spring chambers connected to accelerate an upper spring chamber away from a stuck lower carrier chamber that supports instrument packages. Wireline tension actuates the jarring action and then lowers a sinker bar for reset as many times as required to incrementally jar the un-stick fish uphole. The wire line connects to a conductor that extends inside the tool through a main operating shaft, release coupling, hammer and anvil, lost motion coupling, into the lower chamber where the end connects to the instruments for communication to the surface. A small wireline tension provides unexpected large impact forces. | ||||||
| 155 | Downhole jarring tool adjuster | US10401937 | 2003-03-27 | US06896060B2 | 2005-05-24 | Ray O. Tillett, Jr. |
| A downhole jarring apparatus including a shaft and a first mandrel configured to releasably engage, a collar operatively attached to the shaft such that an axial position of the collar relative to the shaft is adjustable by access through an opening in an outer surface of a second mandrel, and an energy store configured to exert a force against the shaft, wherein the force is adjustable in response to the axial position of the collar relative to the shaft. | ||||||
| 156 | Drilling jar for use in a downhole network | US10653604 | 2003-09-02 | US20050045339A1 | 2005-03-03 | David Hall; Joe Fox |
| Apparatus and methods for integrating transmission cable into the body of selected downhole tools, such as drilling jars, having variable or changing lengths. A wired downhole-drilling tool is disclosed in one embodiment of the invention as including a housing and a mandrel insertable into the housing. A coiled cable is enclosed within the housing and has a first end connected to the housing and a second end connected to the mandrel. The coiled cable is configured to stretch and shorten in accordance with axial movement between the housing and the mandrel. A clamp is used to fix the coiled cable with respect to the housing, the mandrel, or both, to accommodate a change of tension in the coiled cable. | ||||||
| 157 | Downhole jarring tool adjuster | US10401937 | 2003-03-27 | US20040188085A1 | 2004-09-30 | Ray O. Tillett JR. |
| According to the present invention, the line downhole jarring tool is a downhole tool for manipulating a work string which is easily configured to deliver a specific amount of force to the work string in a small and simple apparatus. | ||||||
| 158 | E-line downhole jarring tool | US10401444 | 2003-03-27 | US20040188084A1 | 2004-09-30 | Ray O. Tillett JR. |
| According to the present invention, the e-line downhole jarring tool is an electrical line downhole tool for manipulating a work string which is easily configured to deliver a specific amount of force to the work string in a small and simple apparatus. | ||||||
| 159 | Methods and apparatus to control downhole tools | US10725124 | 2003-12-01 | US20040108108A1 | 2004-06-10 | Thomas F. Bailey; Michael Nero; Timothy L. Wilson |
| The present invention generally provides a downhole tool with an improved means of transmitting data to and from the tool through the use of wired pipe capable of transmitting a signal and/or power between the surface of the well and any components in a drill string. In one aspect, a downhole tool includes a body, and a mandrel disposed in the body and movable in relation to the body. A conducive wire runs the length of the body and permits signals and/or power to be transmitted though the body as the tool changes its length. | ||||||
| 160 | Down hole jar tool | US10143709 | 2002-05-08 | US06725932B2 | 2004-04-27 | Mark A. Taylor; Jeff L. Taylor |
| The down hole jar tool is a tool used to apply jarring forces to objects that may be obstructing the path of a down hole, or above-ground operation that requires a repetitive jarring action to dislodge or remove such objects. The tool is used by providing a linear input to a mandrel portion that draws back against a compressible unit of predetermined resistance until a releasing means abruptly releases the mandrel portion. The mandrel portion then rapidly moves in the direction of the linear input until it encounters a stationary anvil, which produces the desired jarring action. This tool may also be combined with accelerators and/or valves, as well as other tools, to create a more substantial jarring impact. | ||||||
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