子分类：
- E21B2023/008： .自推进系统或装置,例如,用于在井眼水平部分移动工具
- E21B23/002： .{工具分流器,例如,用于流通线路工具系统或用于有线线路工具(E21B23/03优先;用于钻井的入E21B7/06)}
- E21B23/004： .{用于引导在井下工具的可伸缩部分之间相对运动的指引系统}
- E21B23/01： .用于固定工具或类似物(E21B23/02至E21B23/06优先;井内驱动装置的固定入E21B4/18;封隔器入E21B33/12)
- E21B23/02： .用于将工具或类似物锁定在坐放短节或相邻管段间的凹座中(E21B23/03至E21B23/06优先)
- E21B23/03： .用于在坐放短节或封隔器的横向偏移处安装或拆除工具的
- E21B23/04： .由流体方法操作的,例如,由爆炸驱动的(E21B23/06,E21B23/08优先)
- E21B23/06： .用于安装封隔器的
- E21B23/08： .用流体压力引入或运转工具,例如,流通线路工具系统(工具分流器入E21B23/002;其井口专门的预防措施入E21B33/068;注水泥塞入E21B33/16;流体压力操纵的刮刀入E21B37/04)
- E21B23/14： .用于替换电缆或由电缆操纵的工具,例如,在斜井中用于测井或射孔操作(旁通接头入E21B17/02D;控制线路保护器入E21B17/1035;利用流体压力的入E21B23/08;用于在井口引入或去除由电缆操纵的工具的装置入E21B33/072、E21B33/076)
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | ACTIVATION MECHANISM FOR A DOWNHOLE TOOL AND A METHOD THEREOF | US15124850 | 2014-12-18 | US20170016292A1 | 2017-01-19 | Sigurd SOLEM |
| An activation method and a mechanism in which a pressure or flow sensor senses the pressure or flow rate of the treatment fluid being pumped through the drill string. A controller powered by a power source monitors the sensed pressure or flow rate within a first time window and via a suitable activator activates a first downhole tool or operation mode thereof if the sensed pressure or flow rate is stable with that time window. The controller monitors the sensed pressure or flow rate within a second time window and activates a second downhole tool or second operation mode of the first downhole tool if the sensed pressure or flow rate is stable with that time window. In one embodiment, the sensed pressure is combined with a rotation sensor sensing the rotation of the drill string. The controller logs the starting time for the pumping and the rotation. | ||||||
| 242 | Deploying an expandable downhole seat assembly | US14029918 | 2013-09-18 | US09528336B2 | 2016-12-27 | Gregoire Jacob; Pierre-Arnaud Foucher |
| A method includes running an assembly on a tool in a contracted state into a well. The assembly includes segments that are adapted to be radially contracted and arranged in a first number of layers along a longitudinal axis of the assembly in the contracted state of the assembly. The technique includes using the tool to expand the assembly downhole in the well to transition the assembly between the contracted state and an expanded state. Using the tool to expand the seat assembly includes radially expanding the segments and longitudinally contracting the segments to arrange the layers in a second number of layers having at least one layer less than the first number. | ||||||
| 243 | DOWNHOLE TOOL | US15254488 | 2016-09-01 | US20160369593A1 | 2016-12-22 | Andrew Philip Churchill |
| An activating device is provided for location in downhole tubing. The device defines an activation profile which is initially maintained at a larger diameter than a tubing seat, such that the device may land on and be held up by the seat. The profile may be subsequently reconfigured to radially retract, allowing the device to pass through the seat. | ||||||
| 244 | Floating device running tool | US14506411 | 2014-10-03 | US09523252B2 | 2016-12-20 | Nicky A. White; James W. Chambers; Thomas F. Bailey |
| A running tool and delivery and/or retrieving apparatus, and method for use, are designed for optionally delivering and optionally retrieving an oilfield device down a borehole. A kelly extends into the borehole. The tool has a journal configured for slidable movement along the kelly, an engagement disk mounted around the journal configured for engaging the device, and a plurality of fins attached perpendicular to an outer circumference of the journal. The proximal fins extend radially from the outer circumference of the journal toward the engagement disk, are butted against the engagement disk and extend to a diameter complementary to an outer diameter of the engagement disk. The plurality of proximal fins surround and are arranged concentric with the journal. | ||||||
| 245 | SEALING A PORTION OF A WELLBORE | US14736577 | 2015-06-11 | US20160362958A1 | 2016-12-15 | Shaohua Zhou |
| A downhole tool system includes a base tubular that includes a bore therethrough; a centralizer positioned to ride on the base tubular, the centralizer expandable to contact a wellbore wall and adjust a location of the downhole tool system relative to the wellbore wall based on a first fluid pressure supplied through the bore; and a liner top assembly positioned to ride on the base tubular, the liner top assembly including a wellbore liner and a pack-off element, the pack-off element expandable to at least partially seal a liner top of the wellbore liner to the wellbore wall based on a second fluid pressure supplied through the bore. | ||||||
| 246 | Arm assembly | US14007754 | 2012-03-29 | US09512688B2 | 2016-12-06 | Jørgen Hallundbæk |
| A downhole tool extending in a longitudinal direction includes a tool housing, an arm assembly movable between a retracted position and a projecting position in relation to the tool housing, the arm assembly having an arm member connected with the tool housing in one end, an arm activation assembly arranged in the tool housing for moving the arm assembly between the retracted position and the projecting position, and a pump for circulating hydraulic fluid. The arm assembly has a hydraulic mechanism arranged in connection with the arm member, and a fluid influx channel provided in the arm member, the fluid influx channel being in fluid communication with the hydraulic mechanism for supplying hydraulic fluid from the pump to the hydraulic mechanism. | ||||||
| 247 | Well multiple casing installation system | US13987729 | 2013-08-26 | US09500054B2 | 2016-11-22 | David M. Miller |
| Apparatus facilitating successive installation of casing sections endwise in a well, that includes hanger structure sized for installation at a well head, the hanger structure having a vertical through opening via which successive casing sections are installable vertically in the well, the hanger structure having vertically spaced shoulders for landing casing sections, there being adjustable structure for enabling controllable adjustment of hanger length, whereby uncemented casing weight is applied on the hanger structure. | ||||||
| 248 | Bottom hole assembly retrieval for casing-while-drilling operations using a tethered float valve | US14383309 | 2013-12-13 | US09464483B2 | 2016-10-11 | Ankit Purohit; Anand Bhagwat Kedare; Bhargav Gajji; Sanjay Sawant |
| A bottom hole assembly for a casing-while-drilling operation utilizes a tethered float valve to retrieve the bottom hole assembly after the casing string has been positioned at a desired wellbore depth. | ||||||
| 249 | Accelerator mixture for peroxide hardener and two-component mortar system containing same | US13457261 | 2012-04-26 | US09463449B2 | 2016-10-11 | Thomas Buergel |
| An accelerator mixture for peroxide hardeners, in particular an accelerator mixture for an organic peroxide-curing resin mixture, a two-component mortar system containing the same for chemical fastening and use of the same for chemical fastening of anchoring elements in boreholes are disclosed. Using a mixture of bis-N-substituted p-toluidines with bis-N-substituted anilines or bis-N-substituted m-toluidines, it is possible to provide a mortar composition for chemical fastening of anchoring elements in boreholes, which will have an improved low-temperature curing and improved load ratings at high temperatures with an extended gel time. | ||||||
| 250 | WIRE-HARNESS-LESS INSERT ASSEMBLY MECHANISM | US15037599 | 2013-12-18 | US20160290064A1 | 2016-10-06 | Rex Dael Navarro; Philbert Pasco Perez; Shijie Ong; Williem Wong |
| A method and apparatus for electronically coupling electronics in downhole tools without a harness is described. The apparatus includes one or more electronics boards, which may be disposed around a tool insert and electronically coupled using a backplane. The backplane may comprise one or more backplane segments, and each of the segments may comprise two printed circuit boards communicatively coupled to each other. The two printed circuit boards may be on opposite sides of a base metal ring and may be coupled to each other via connectors in a cavity of the base metal ring. Dampers may be placed between the base metal ring and each of the printed circuit boards. The printed circuit boards my optionally include an identification chip for storing information concerning the electronics boards coupled to the backplane. Additionally or alternatively, the printed circuit boards may optionally include active device chips that dynamically route signals based on which electronics boards are coupled to the backplane. | ||||||
| 251 | Retrievable Downhole Tool | US14666398 | 2015-03-24 | US20160281458A1 | 2016-09-29 | Donald R. Greenlee |
| A retrievable downhole tool has a mandrel, an upper radially expandable slip carried by the mandrel, a lower radially expandable slip carried by the mandrel, a rubber element disposed between the upper radially expandable slip and the lower radially expandable slip, an upper backup disposed between the upper radially expandable slip and the rubber element, and a lower backup disposed between the rubber element and the lower radially expandable slip. At least one of the upper radially expandable slip, the lower radially expandable slip, the upper backup, and the lower backup comprises a soluble material. | ||||||
| 252 | ROPE SOCKET | US14671791 | 2015-03-27 | US20160281451A1 | 2016-09-29 | AARON BREAUX; KEITH FRY; LANCE FRY |
| An improved rope socket for downhole operations, capable of separating within the wellbore to permit removal of upper components and attached wireline, while lower components including an uphole-facing fishing neck remain attached to a tool string or fish within the wellbore. Also, an improved drop bar for actuating a release mechanism of the improved rope socket. The improved drop bar includes wheel assemblies having integrated axles to provide a stronger axle capable of offset placement along the circumference of the drop bar. | ||||||
| 253 | Adjustable Shear Assembly | US14412065 | 2013-11-04 | US20160281442A1 | 2016-09-29 | Matthew Bradley Stokes |
| A well tool has an inner and outer component arranged to move relative to one another and defining a shear juncture therebetween. A shear member spans the shear juncture. The shear member has first portion with a different cross-sectional area than a second portion. A cam surface is associated with the inner or outer component and abuts the shear member. The cam surface moves the shear member as the inner and outer components move relative to one another and changes the shear member from having the first portion aligned with the shear juncture to having the second portion aligned with the shear juncture. | ||||||
| 254 | METHOD OF MAKING AND USING A FUNCTIONALLY GRADIENT COMPOSITE TOOL | US15178882 | 2016-06-10 | US20160279709A1 | 2016-09-29 | Zhiyue Xu; Michael Johnson |
| A method of making a composite downhole article is disclosed. The method include forming at least one removable core member comprising a first metallic material that is removable in a wellbore fluid at a first removal rate; and disposing at least one outer member on the core member, the outer member comprising a second material that is removable in the wellbore fluid at a second removal rate, wherein the removable core member has a composition gradient or a density gradient, or a combination thereof, and wherein the first removal rate is substantially greater than the second removal rate. A method of using a composite downhole article is also disclosed. The method includes forming a composite downhole article as described above; using the article to perform a first wellbore operation; exposing the article to the wellbore fluid; and selectively removing the second removable member. | ||||||
| 255 | PACKER RELEASE COMPACTION JOINT | US14409268 | 2013-12-19 | US20160273287A1 | 2016-09-22 | Keith Wayne Scott; Colby M. Ross |
| Certain aspects are directed to a device designed to relieve compression in a length of pipe. The device provides a load ring that can absorb and isolate load until a shear sleeve is shifted and shear pins are sheared. A specific aspect provides a packer release compaction joint that has a shifting sleeve having a first internal shoulder configured to engage a shifting tool; a shear sleeve having a raised abutment; a load ring mounted on the shear sleeve, the load ring having an outer diameter and positioned forward of the first side of the raised abutment; a snap ring mounted around the outer diameter of the load ring. Action of a shifting tool against the first internal shoulder of the shifting sleeve causes the snap ring to move away from the load ring and move to the second side of the raised abutment. | ||||||
| 256 | Downhole driving unit having a hydraulic motor in a wheel | US14008190 | 2012-03-29 | US09435167B2 | 2016-09-06 | Jørgen Hallundbæk |
| The present invention relates to a downhole driving unit (11) for insertion into a well, comprising a driving unit housing (51), an arm assembly (60) movable between a retracted position and a projecting position in relation to the driving unit housing, an arm activation assembly (41) arranged in the driving unit housing for moving the arm assembly between the retracted position and the projecting position and a wheel assembly (90) comprising a stationary part (91) and a rotational part (92), the stationary part being connected with or forming part of the arm assembly and being rotatably connected with a rotational part. The wheel assembly comprises a hydraulic motor comprising a hydraulic motor housing (93) and a rotatable section (84) connected with the rotational part for rotating part of the wheel assembly. Furthermore, the present invention relates to a downhole system comprising said driving unit and to use of such driving unit. | ||||||
| 257 | Rotating flow head apparatus | US14173726 | 2014-02-05 | US09435165B2 | 2016-09-06 | William Anthony DeWesee, Jr.; Richard David Peer |
| An apparatus comprises a mandrel having a longitudinal axis and further comprises a plurality of pivoting elements spaced apart along a circumference of a cross-section of the mandrel. Each of the pivoting elements is pivotable around a transversal axis that is perpendicular to the longitudinal axis. | ||||||
| 258 | METHOD AND APPARATUS FOR DETECTING PLUNGER ARRIVAL | US14920512 | 2015-10-22 | US20160230518A1 | 2016-08-11 | Terry R. Wright; Burke E. Lowery; Paul T. Roberts |
| The disclosed device provides a high-accuracy plunger arrival detection system comprising a low-power magnetometer with high sensitivity and which is capable of sampling low or high intensity magnetic fields. The device processes gathered data from sensors, stores at least some processed data in memory, executes a trending algorithm which compares the magnetic field of the plunger to the ambient magnetic field or a predetermined set of initialization values, and generates an output which is relayed to a well controller. An output signal may be via hard wire, RF, wireless or other known means. In addition, the implementation of two sensing devices mounted in series and in spaced relation to each other, can provide for an actual plunger average velocity. An actual plunger average velocity, as opposed to approximate average velocity, can be used to better optimize well control and improve safety of the overall well production system. | ||||||
| 259 | Modeling tool passage through a well | US13676368 | 2012-11-14 | US09390064B2 | 2016-07-12 | Heru Rubin; Dominic Anh Tran; Josiah Wood |
| In modeling passage of an elongate well tool through a well, a computing system receives inputs representing a plurality of geometric characteristics of the well tool including three dimensional surface data characterizing the shape of outwardly facing, lateral surfaces of the well tool. The computing system also receives inputs representing a plurality of geometric characteristics of the well. The computing system determines a prediction of the force to pass the well tool through at least a portion of the well based on a comparison of the three dimensional surface data of the well tool and the plurality of geometric characteristics of the well. | ||||||
| 260 | Automated wellbore equipment feeding system | US13900062 | 2013-05-22 | US09366128B2 | 2016-06-14 | Dominik Brouwer; Joerg Lehr |
| An apparatus for manipulating objects include a plurality of actuators distributed on a rig. The actuators cooperate to orient and move the well equipment. Each actuator may include at least one non-rigid tension member configured to engage the well equipment, and at least one sensor generating a signal representative of at least one parameter of: (i) a length of at least one of the at least one non-rigid tension members, (ii) a tension along at least one of the at least one non-rigid tension members, (iii) a position of at least one of the at least one non-rigid tension members; and (iv) an orientation of at least one of the at least one non-rigid tension members. The actuators may also each include a drum guiding each of the at least one non-rigid tension members and a motor rotating each drum. The apparatus further includes a controller in communication with the actuators, the controller being programmed to move the object based on the at least one sensor signals. | ||||||
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