公开(公告)号：US5832998A

公开(公告)日：1998-11-10

申请号：US433787

申请日：1995-05-03

申请人： Kenneth L. Decker ,  John H. Yonker ,  Wallace G. Wilke, Jr. ,  Jeffrey S. Walter ,  James C. Tucker ,  Kenneth W. McIntyre ,  Michael L. Connell ,  Kenneth D. Caskey

发明人： Kenneth L. Decker ,  John H. Yonker ,  Wallace G. Wilke, Jr. ,  Jeffrey S. Walter ,  James C. Tucker ,  Kenneth W. McIntyre ,  Michael L. Connell ,  Kenneth D. Caskey

IPC分类号： E21B23/00 ,  E21B33/127

CPC分类号： E21B23/006 ,  E21B33/127

摘要： A resettable well stimulation tool is lowerable into a well bore on a length of tubing through which pressurized fluid may be forced into the tool to inflate a packer portion carried by the tool and then discharge a stimulation fluid into a portion of the well bore sealed off by the packer portion. During the inflation cycle of the tool pressurized fluid is forced downwardly into an annular tool body inflation chamber that communicates with an inflatable packer carried by the tool body. A perforated tube member coaxially carried in the inflation chamber serves to vertically distribute the inflation pressure along the length of the packer and assure its even inflation. In a straddle packer embodiment of the tool inflation and stimulation passages extend internally through the tool and are sealingly separated by an internal crossover structure, with the inflation passage being in communication with upper and lower packer members. The internal inflation passage eliminates the previous necessity of communicating the upper and lower packers with inflation tubing externally coiled around the tool body. A longitudinally intermediate portion of the tool body has a telescoping expansion joint portion to compensate for the longitudinal forces exerted on the body by inflation of the packers. The expansion joint is biased, by both mechanical spring pressure and internal fluid pressure, toward a retracted position thereof.

摘要翻译： 可重置的井刺激工具可以降低到一段管道上的井眼中，加压流体可以通过该管道被迫进入工具中，以使由工具承载的封隔器部分膨胀，然后将刺激流体排放到密封的井筒的一部分中 通过封隔器部分。 在工具的充气循环期间，加压流体被迫向下进入与由工具主体承载的充气封隔器连通的环形工具体充气室。 同轴地承载在充气室中的穿孔管构件用于沿着封隔器的长度垂直分布充气压力并确保其均匀的充气。 在跨越打包器的实施例中，工具膨胀和刺激通道在内部延伸穿过工具，并且通过内部交叉结构密封地分开，充气通道与上部和下部封隔器构件连通。 内部充气通道消除了先前需要将上部和下部封隔器与外部盘绕在工具体上的充气管连通的需要。 工具主体的纵向中间部分具有伸缩式膨胀接头部分，以通过封隔器的充气来补偿作用在身体上的纵向力。 膨胀接头通过机械弹簧压力和内部流体压力被偏压到其缩回位置。

公开(公告)号：US5066198A

公开(公告)日：1991-11-19

申请号：US533019

申请日：1990-06-04

申请人： Kenneth L. Decker

发明人： Kenneth L. Decker

IPC分类号： E21B43/12 ,  F04F1/20

CPC分类号： F04F1/20 ,  E21B43/123

摘要： A gas lift valve of the unloading type having a main valve for controlling fluid flow between a well casing and a well tubing, a volume of compressible liquid a spaced distance from said main valve and subject to casing pressure, and a pilot valve between the main valve and the compressible liquid for controlling opening and closing of the main valve by permitting casing pressure to act thereon or to isolate it therefrom as the volume of the compressible liquid changes in response to changes in casing pressure to which it is subjected. Gas lift well systems utilizing such gas lift valves and methods for operating such gas lift well systems are also disclosed.

摘要翻译： 一种卸载式气体提升阀，具有用于控制井套管和井管之间的流体流动的主阀，与所述主阀间隔距离并承受套管压力的可压缩液体的体积，以及主阀之间的先导阀 阀和可压缩液体，用于通过允许套管压力作用在主阀上，用于控制主阀的打开和关闭，或者随着可压缩液体的体积响应于其经受的套管压力的变化而变化。 还公开了利用这种气举阀的气举井系统和操作这种气举井系统的方法。

公开(公告)号：US5107441A

公开(公告)日：1992-04-21

申请号：US606872

申请日：1990-10-31

申请人： Kenneth L. Decker

发明人： Kenneth L. Decker

IPC分类号： E21B43/12 ,  E21B47/10 ,  G01F1/26 ,  G01F25/00 ,  G01M13/00 ,  G05D7/06

CPC分类号： G01F25/0007 ,  E21B43/123 ,  E21B47/10 ,  G01F1/26 ,  G01M13/00 ,  G05D7/0635 ,  Y10T137/2934

摘要： A system for determining the flow performance of a valve by first measuring certain flow parameters of the valve with the stem fixed in a plurality of different positions between full open and full closed and then calculating a value of flow coefficient for each. The flow parameters of the valve are then measured with the stem dynamically moving under a plurality of different flow conditions. Mathematical relationships are derived in accordance with certain procedures for calculating the flow rate of the valve under each of the different flow conditions.

摘要翻译： 一种用于通过首先测量所述阀的某些流量参数来确定阀的流动性能的系统，其中阀杆固定在全开和全闭合之间的多个不同位置，然后计算每个的流量系数值。 然后在茎在多个不同流动条件下动态移动的情况下测量阀的流动参数。 数学关系根据在每个不同流量条件下计算阀的流量的某些程序得出。

公开(公告)号：US4858644A

公开(公告)日：1989-08-22

申请号：US200138

申请日：1988-05-31

申请人： Kenneth L. Decker

发明人： Kenneth L. Decker

IPC分类号： E21B34/06 ,  E21B43/14 ,  E21B43/20 ,  G05D7/01

CPC分类号： E21B34/06 ,  E21B43/14 ,  E21B43/20 ,  F16K1/40 ,  G05D7/0106 ,  Y10S251/902 ,  Y10T137/7792 ,  Y10T137/7869

摘要： A fluid flow regulator in which the fluid flow therethrough is restricted twice, first through a fixed orifice in a slidable piston and then through a variable flow restrictor which is a spring. This spring is axially aligned with and bears against the piston, and fluids issuing from the orifice empties into the interior of the spring, the end of the spring opposite the piston being closed. Fluids thus flow from within the spring through the gaps between its coils and into a chamber surrounding the spring, and from there exits through the outlet of the regulator. The gaps between the spring coils are quite narrow and cause the flow of fluids to be restricted this second time. This restriction is variable since the piston moves as the differential pressure thereacross varies which causes the length of the spring to vary accordingly. This in turn varies the size of the gaps. In this manner, the regulator compensates automatically to provide a fluid flow rate which is substantially constant.

摘要翻译： 其中流体流过其中的流体流量调节器被限制两次，首先通过可滑动活塞中的固定孔，然后通过作为弹簧的可变流量限制器。 该弹簧与活塞轴向对准并且抵靠活塞，并且从孔口排出的流体排空到弹簧的内部，弹簧的与活塞相对的端部被封闭。 因此，液体从弹簧内通过其线圈之间的间隙流入围绕弹簧的腔室中，并且从那里流出调节器的出口。 弹簧线圈之间的间隙相当窄，导致流体第二次受到限制。 这种限制是可变的，因为活塞随着压差的变化而变化，这导致弹簧的长度相应地变化。 这反过来改变了间隙的大小。 以这种方式，调节器自动补偿以提供基本恒定的流体流速。

公开(公告)号：US5271461A

公开(公告)日：1993-12-21

申请号：US882308

申请日：1992-05-13

申请人： Kenneth L. Decker ,  John H. Yonker

发明人： Kenneth L. Decker ,  John H. Yonker

IPC分类号： E21B23/00 ,  E21B33/127 ,  E21B34/10

CPC分类号： E21B23/006 ,  E21B33/127 ,  E21B34/102

摘要： An inflatable stimulation tool designed to be deployed by coil tubing having a shuttle valve which reciprocates within the bore of a tubular mandrel. The shuttle valve, in cooperation with a reciprocally movable outer mandrel which is disposed about an inner mandrel, opens and closes various ports in the device to alternately seal and unseal the inflatable packer element. The shuttle valve also operates to open and close a flow passage through the inner mandrel to permit the passage of various stimulation fluids through the tool and into the well bore.Upon deflation of the inflatable packing means, which leaves the packing means in a somewhat distended state, the element is urged to its original close relationship with the mandrel by a return spring which cooperates with the lower tool structure to which one end of the rubber packing element is clamped to longitudinally stretch the element.

摘要翻译： 一种充气式刺激工具，设计成由具有在管状心轴的孔内往复运动的往复阀的螺旋管部署。 梭阀与设置在内心轴周围的可往复运动的外心轴协同打开和关闭装置中的各种口，以交替地密封和开封可充气封隔器元件。 梭阀还用于打开和关闭通过内心轴的流动通道，以允许各种刺激流体通过工具并进入井眼。 当充气包装装置放气时，其使填充装置处于稍微膨胀的状态，通过与下部工具结构配合的复位弹簧将元件推向其与心轴的初始紧密关系，所述复位弹簧与橡胶填料的一端 元件被夹紧以纵向拉伸元件。