公开(公告)号：US20050061503A1

公开(公告)日：2005-03-24

申请号：US10994992

申请日：2004-11-22

申请人： John Misselbrook ,  John Ravensbergen ,  Lance Portman

发明人： John Misselbrook ,  John Ravensbergen ,  Lance Portman

IPC分类号： E21B37/06 ,  E21B43/267

CPC分类号： E21B37/06

摘要： A method for cleaning a plugged gravel pack in a subterranean wellbore is provided. The method comprises the steps of using a pressure pulsating jet and a tangential vortex to deliver a pressure pulsating treatment fluid into the gravel pack wherein soluble plugging materials in the gravel pack are dissolved by the treatment fluid and insoluble plugging materials are moved through the gravel pack and circulated out of the wellbore. The treatment fluid is driven more completely into the gravel pack to obtain a greater coverage in the pack to dissolve soluble fines and displace insoluble fines from the interstitial pore spaces of the gravel pack.

摘要翻译： 提供了一种在地下井眼中清洁堵塞的砾石充填物的方法。 该方法包括以下步骤：使用压力脉动射流和切向涡流将压力脉动处理流体输送到砾石包装中，其中砾石包装中的可溶性堵塞材料被处理流体溶解，并且将不溶性堵塞材料移动通过砾石包装 并从井筒中流出。 将处理流体更完全地驱动到砾石包装中以获得更大的包装中的覆盖以溶解可溶性细粒并从砾石包装的间隙孔隙中取代不溶性细粒。

公开(公告)号：US5350013A

公开(公告)日：1994-09-27

申请号：US115341

申请日：1993-08-31

申请人： Bill Jani ,  Thomas Garay ,  John Ravensbergen

发明人： Bill Jani ,  Thomas Garay ,  John Ravensbergen

IPC分类号： E21B23/01 ,  E21B23/00

CPC分类号： E21B23/01

摘要： A mandrel-operated tension torque anchor for insertion into the casing of a well to anchor the pipe string from rotation and vertical movement. The anchor comprises drive member for cones to operate anchoring slips, which drive member are operatively secured to the mandrel to rotate therewith and threadably secured to the anchor frame so as to cause movement of the cones into anchoring position on rotation of the mandrel in one direction.

摘要翻译： 用于插入井的壳体中的心轴操作的张力扭矩锚固件，用于锚固管柱从旋转和垂直运动。 锚固件包括用于锥形件的驱动构件以操作锚固滑动件，该驱动构件可操作地固定到心轴上以与其一起旋转并且可螺纹地固定到锚固框架上，以便当心轴在一个方向上旋转时使锥体移动到锚固位置 。

公开(公告)号：US20070151735A1

公开(公告)日：2007-07-05

申请号：US11642230

申请日：2006-12-20

申请人： John Ravensbergen ,  Mitch Lambert ,  Chad Northeast

发明人： John Ravensbergen ,  Mitch Lambert ,  Chad Northeast

IPC分类号： E21B43/26

CPC分类号： E21B17/203 ,  E21B17/206 ,  E21B33/127 ,  E21B43/26

摘要： An improved concentric coiled tubing annular fracturing string is disclosed having at least two fluid flow paths. An umbilical tube located inside of a coiled tubing string may provide one of the pathways, which may be used to isolate downhole elements, such as a packer, from harmful fluids. The annulus between the umbilical tube and the outer coiled tubing may provide the second flow pathway. The umbilical tube may contain an electric line, which may provide an electrical connection to a bottom hole assembly (“BHA”). The improved system may also provide for the measurement of down hole fracturing fluid pressure or be used to deliver a cross-linking agent to a specified portion of a well. The BHA may include an emergency packer deflation device to rapidly deflate a packer in the event the packer loses its ability to anchor against the casing.

摘要翻译： 公开了一种改进的同心卷绕管环形压裂串，其具有至少两个流体流动路径。 位于连续油管柱内部的脐带管可以提供一个路径，其可用于将井下元件（例如封隔器）与有害流体隔离。 脐带管和外部盘绕管之间的环形空间可以提供第二流动路径。 脐管可以包含电线，其可以提供与底部孔组件（“BHA”）的电连接。 改进的系统还可以提供井孔压裂流体压力的测量，或用于将交联剂递送到井的特定部分。 BHA可以包括紧急封隔器放气装置，以便在封隔器失去锚固在套管上的能力的情况下迅速地使封隔器放气。

公开(公告)号：US06834722B2

公开(公告)日：2004-12-28

申请号：US10356836

申请日：2003-02-03

申请人： Lubos Vacik ,  John Ravensbergen ,  John Gordon Misselbrook

发明人： Lubos Vacik ,  John Ravensbergen ,  John Gordon Misselbrook

IPC分类号： E21B3410

CPC分类号： E21B23/006 ,  E21B17/203 ,  E21B34/102 ,  E21B34/14 ,  E21B2034/005

摘要： A cyclic check valve is provided for a coiled tubing string which enables reverse circulating for a specific period when a specific combination of pumping condition and oil conditions are favorable. The check valve may be activated to prevent reverse flow up through the valve and into the coiled tubing in the event of a failure of the coiled tubing at surface. The valve may be de-activated to allow reverse circulating. The check valve includes a flapper valve which may be de-activated by shiftable sleeve locked in place by a J-slot assembly. The check valve may be cycled from the activated to de-activated position and verified by a change in pressure drop through the tool.

公开(公告)号：US06832655B2

公开(公告)日：2004-12-21

申请号：US10256736

申请日：2002-09-27

申请人： John Ravensbergen ,  John Gordon Misselbrook ,  Lance Nigel Portman

发明人： John Ravensbergen ,  John Gordon Misselbrook ,  Lance Nigel Portman

IPC分类号： E21B3708

CPC分类号： E21B37/06

摘要： A method for cleaning a plugged gravel pack in a subterranean wellbore is provided. The method comprises the steps of using a pressure pulsating jet and a tangential vortex to deliver a pressure pulsating treatment fluid into the gravel pack wherein soluble plugging materials in the gravel pack are dissolved by the treatment fluid and insoluble plugging materials are moved through the gravel pack and circulated out of the wellbore. The treatment fluid is driven into the gravel pack to dissolve soluble fines and displace insoluble fines from the interstitial pore spaces of the gravel pack.

摘要翻译： 提供了一种在地下井眼中清洁堵塞的砾石充填物的方法。 该方法包括以下步骤：使用压力脉动射流和切向涡流将压力脉动处理流体输送到砾石包装中，其中砾石包装中的可溶性堵塞材料被处理流体溶解，并且将不溶性堵塞材料移动通过砾石包装 并从井筒中流出。 处理液被驱入砾石包装中以溶解可溶性细粉，并从砾石包装的间隙孔隙中取代不溶性细粉。

公开(公告)号：US20050173157A1

公开(公告)日：2005-08-11

申请号：US10773466

申请日：2004-02-05

申请人： John Ravensbergen ,  Don Pike ,  Doug Brunskill

发明人： John Ravensbergen ,  Don Pike ,  Doug Brunskill

IPC分类号： E21B4/00 ,  E21B4/02 ,  E21B23/08 ,  E21B37/04 ,  E21B44/00 ,  F03B13/02 ,  F03B15/12 ,  F04B47/08 ,  F04B49/035

CPC分类号： E21B4/02

摘要： A flow control valve is disclosed for controlling the rotation of a hydraulic motor, such as a turbine, a mud motor, for example, having an element that rotates in response to power fluid. The valve disclosed may include a valve housing and a valve piston, each having a port, moveable relative to one another. When the ports at least partially align, bypass flow is generated which acts to decrease the speed of rotation of the element, such as a turbine shaft. An energizer, such as a pump assembly, is further described which is adapted to move the valve housing or the valve piston in response to the speed of rotation, such that bypass flow is a function of the motor speed (i.e. speed of rotation of the element). A bottom hole assembly including a flow control valve and a method of controlling the rotation of a downhole tool are also described.

摘要翻译： 公开了一种用于控制诸如涡轮机的液压马达，例如具有响应于动力流体旋转的元件的泥浆马达的旋转的流量控制阀。 所公开的阀可以包括阀壳体和阀活塞，每个具有可相对于彼此移动的端口。 当端口至少部分对准时，产生旁路流，其作用是降低元件（例如涡轮轴）的旋转速度。 进一步描述了诸如泵组件的激发器，其适于响应于旋转速度来移动阀壳体或阀活塞，使得旁路流是电动机速度的函数（即， 元件）。 还描述了包括流量控制阀的底孔组件和控制井下工具的旋转的方法。

公开(公告)号：US20050000693A1

公开(公告)日：2005-01-06

申请号：US10868058

申请日：2004-06-15

申请人： John Ravensbergen ,  Andre Naumann ,  Lubos Vacik ,  Mitch Lambert ,  Graham Wilde

发明人： John Ravensbergen ,  Andre Naumann ,  Lubos Vacik ,  Mitch Lambert ,  Graham Wilde

IPC分类号： E21B17/06 ,  E21B17/20 ,  E21B23/02 ,  E21B23/04 ,  E21B23/06 ,  E21B33/124 ,  E21B34/06 ,  E21B34/08 ,  E21B34/10 ,  E21B43/26 ,  E21B31/00

CPC分类号： E21B17/06 ,  E21B17/20 ,  E21B23/02 ,  E21B23/06 ,  E21B33/1243 ,  E21B34/063 ,  E21B34/085 ,  E21B34/101 ,  E21B43/26

摘要： A bottom hole assembly for use with fracturing or fracing a wellbore using coiled tubing is described having a first packing element and a second packing element on a mandrel. The bottom hole assembly may be run into the wellbore such that the packing elements straddle the zone to be fraced. Also described is a timing mechanism to prevent the closing of dump ports before the bottom hole assembly may be flushed of the sand. A release tool is described that allows an operator to apply combination of force for a given amount of time to the coiled tubing to dislodge a bottom hole assembly without completely releasing the bottom hole assembly. Also disclosed is a collar locator capable of being utilized in a fracing process. Methods of using the above-described components are also disclosed.

摘要翻译： 描述了一种用于使用连续油管对井眼进行压裂或压边使用的井底组件，其具有在心轴上的第一填料元件和第二填料元件。 底孔组件可以进入井筒，使得填料元件跨越要被压边的区域。 还描述了一种定时机构，用于在底部孔组件可能被冲洗掉之前防止倾倒端口关闭。 描述了释放工具，其允许操作者将一定时间的力的组合施加到连续油管以移除底部孔组件而不完全释放底部孔组件。 还公开了能够在边缘过程中使用的衣领定位器。 还公开了使用上述组分的方法。

公开(公告)号：US20070137866A1

公开(公告)日：2007-06-21

申请号：US11602511

申请日：2006-11-20

申请人： John Ravensbergen ,  Doug Brunskill

发明人： John Ravensbergen ,  Doug Brunskill

IPC分类号： E21B19/22 ,  E21B33/06

CPC分类号： E21B19/22 ,  E21B33/06

摘要： An improved dual purpose blow out preventer (“BOP”) that provides both deployment and wellhead pressure containment functions. The dual purpose BOP may include four sets of rams including a set of seal/slip rams that provide bi-directional sealing being a first barrier to downhole pressure. The seal/slip rams may also grip a portion of a bottom hole assembly and create the bottom seal of an annular chamber. The BOP may include a set of seal rams that create the top seal of the annular chamber. The annular chamber may be pressurized through a port in the BOP, which may actuate a coiled tubing connector. The BOP may include a set of locate rams used to position a coiled tubing connector within the BOP stack. The BOP may also include a set of blind/shear rams that provide bi-directional sealing being a second barrier to wellhead pressure.

摘要翻译： 一种改进的双重防喷器（“BOP”），可提供部署和井口压力容纳功能。 双重目的的BOP可以包括四组公制，包括一组密封/滑动式公差，其提供双向密封，作为井下压力的第一阻挡层。 密封/滑动凸起也可以夹持底部孔组件的一部分并产生环形室的底部密封。 BOP可以包括一组产生环形室的顶部密封的密封塞。 环形室可以通过BOP中的端口加压，这可以致动连续油管连接器。 BOP可以包括一组用于将连续油管连接器定位在BOP堆叠内的定位杆。 BOP还可以包括提供双向密封作为井口压力的第二阻挡物的一组盲/剪切公差。

公开(公告)号：US20050077042A1

公开(公告)日：2005-04-14

申请号：US10929340

申请日：2004-08-27

申请人： John Ravensbergen ,  Mitchell Lambert

发明人： John Ravensbergen ,  Mitchell Lambert

IPC分类号： E21B41/00 ,  F04F5/46 ,  E21B34/06

CPC分类号： E21B41/0078 ,  F04F5/46

摘要： A device for use with components for a downhole tool—such as a throat, a nozzle, or a diffuser—used for cleaning a wellbore, are disclosed which decreases the erosion of the components. The device may be comprised of a hardened material, such as stack of pure diamond disks brazed to form an insert for a throat. The device may also be comprised of polycrystalline diamond (PCD) washers stacked together and mechanically secured within the component such as a throat. The device may also be comprised of diamond grown on a mandrel into a trumpet shape, which may then be brazed or epoxied into the component. As each of these materials is harder than materials previously utilized, erosion performance is enhanced. A method of improving erosion performance of components utilized to clean a wellbore is also disclosed.

摘要翻译： 公开了一种用于井下工具的部件的装置，例如用于清洁井筒的喉部，喷嘴或扩散器，其减少了部件的侵蚀。 该装置可以由硬化材料构成，例如钎焊的纯金刚石圆盘的堆叠，以形成用于喉部的插入物。 该装置还可以由堆叠在一起并机械固定在诸如喉部的部件内的多晶金刚石（PCD）垫圈组成。 该装置还可以由在心轴上生长成小号形状的金刚石组成，然后可将其钎焊或环氧化成部件。 由于这些材料中的每一种都比以前使用的材料更硬，因此腐蚀性能得到提高。 还公开了一种改善用于清洁井眼的部件的侵蚀性能的方法。