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公开(公告)号：US5431225A
公开(公告)日：1995-07-11
申请号：US310174
申请日：1994-09-21
IPC分类号： E21B43/02 , E21B43/26 , E21B43/267
CPC分类号： E21B43/26 , E21B43/025 , E21B43/267
摘要： Methods of completing poorly consolidated subterranean formations bounded by one or more consolidated formations to prevent sand production from the poorly consolidated formations are provided. The methods basically comprise the steps of drilling a well bore into the consolidated boundary formation adjacent to the poorly consolidated formation, creating a propped fracture communicating with the well bore in the consolidated boundary formation which extends into the poorly consolidated formation and producing fluids from the poorly consolidated formation into the well bore by way of the propped fracture.
摘要翻译： 提供了完成由一个或多个固结地层限定的不良固结的地层的方法，以防止由较差的组合地层产生砂。 这些方法基本上包括以下步骤：将井眼钻进邻近不良结合地层的固结边界地层中，产生与固结的边界地层中的井眼相通的支撑裂缝，该裂缝延伸到较不固结的地层中并从较差的地层中产生流体 通过支撑骨折将井眼固结成井眼。
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2.发明授权
公开(公告)号：US5360066A
公开(公告)日：1994-11-01
申请号：US992847
申请日：1992-12-16
IPC分类号： E21B43/119 , E21B43/26 , E21B47/02
CPC分类号： E21B43/119 , E21B43/26 , E21B47/02
摘要： An improved method for fracturing oil wells is disclosed and claimed herein. In particular, the present invention involves the determination of the direction of fracture propagation, i.e., perpendicular to the minimum stress existing within a given formation and the alignment of perforations produced by a variety of perforating devices with the previously determined direction of fracture propagation. The methods disclosed and claimed herein will eliminate many problems encountered in the prior art, including reducing the pressure required to initiate fractures and reducing the undesirable effects of near wellbore tortuosity.
摘要翻译： 本文公开并要求了一种用于压裂油井的改进方法。 特别地，本发明涉及确定裂缝扩展的方向，即垂直于给定地层内存在的最小应力的方向，以及由先前确定的裂缝扩展方向由各种穿孔装置产生的穿孔的对准。 本文公开和要求保护的方法将消除现有技术中遇到的许多问题，包括降低引发裂缝所需的压力并减少近井眼弯曲度的不良影响。
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3.发明授权
公开(公告)号：US5482122A
公开(公告)日：1996-01-09
申请号：US352469
申请日：1994-12-09
CPC分类号： G01N33/241 , E21B43/26 , E21B47/02 , E21B49/02 , E21B49/04
摘要： A method for the determination of anisotropic material properties in subterranean rock formations by means of radially oriented and generally equally angularly spaced sidewall cores obtained by use of a rotary sidewall coring tool. The measurement values obtained from testing of the sidewall cores are utilized to obtain an accurate prediction of the shape of the ellipse that describes the variation in the material property under consideration as a function of direction in the bedding plane of the subterranean rock formation.
摘要翻译： 一种用于通过使用旋转侧壁取芯工具获得的通过径向取向且大致相等角度间隔开的侧壁芯来确定地下岩层中的各向异性材料特性的方法。 使用从侧壁芯的测试获得的测量值来获得椭圆形状的精确预测，其描述了作为地下岩层的层层平面中的方向的函数的所考虑的材料性质的变化。
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4.发明授权Method and apparatus for determining orientation of a wellbore relative to formation stress fields 失效用于确定井眼相对于地层应力场的取向的方法和装置
公开(公告)号：US5285683A
公开(公告)日：1994-02-15
申请号：US955110
申请日：1992-10-01
CPC分类号： E21B43/26 , E21B47/02 , E21B49/006 , E21B49/008
摘要： The invention provides a method for determining the orientation of a wellbore relative to stress fields within a formation through analysis of pressure climb data during a test fracturing operation. The test fracturing operation may be formed in a plurality of wells having a known angular relation to one another in a given formation. A known angular or azimuthal relationship between the wells may be correlated with the derivative of the pressure decline proximate the relief in pressure area to define maximum azimuthal stress field and a minimum azimuthal stress field in the formation.
摘要翻译： 本发明提供了一种通过在测试压裂操作期间分析压力爬升数据来确定井筒相对于地层内的应力场的取向的方法。 测试压裂操作可以形成在给定地层中彼此具有已知角度关系的多个井中。 井之间的已知角度或方位角关系可能与压力区域中的浮雕附近的压力衰减的导数相关，以限定地层中的最大方位角应力场和最小方位角应力场。
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5.发明授权
公开(公告)号：US5318123A
公开(公告)日：1994-06-07
申请号：US897358
申请日：1992-06-11
IPC分类号： E21B43/119 , E21B43/26 , E21B49/04
CPC分类号： E21B43/119 , E21B43/26
摘要： An improved method for fracturing oil wells is disclosed and claimed herein. In particular, the present invention involves the determination of the direction of fracture propagation, i.e., perpendicular to the minimum stress existing within a given formation and the alignment of perforations produced by a variety of perforating devices with the previously determined direction of fracture propagation. The methods disclosed and claimed herein will eliminate many problems encountered in the prior art, including reducing the pressure required to initiate fractures and reducing the undesirable effects of near well bore tortuosity.
摘要翻译： 本文公开并要求了一种用于压裂油井的改进方法。 特别地，本发明涉及确定裂缝扩展的方向，即垂直于给定地层内存在的最小应力的方向，以及由先前确定的裂缝扩展方向由各种穿孔装置产生的穿孔的对准。 本文公开和要求保护的方法将消除现有技术中遇到的许多问题，包括降低开始裂缝所需的压力并减少近井孔弯曲度的不良影响。
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6.发明授权
公开(公告)号：US5236040A
公开(公告)日：1993-08-17
申请号：US897325
申请日：1992-06-11
CPC分类号： E21B47/02 , E21B43/26 , E21B49/006 , E21B49/008
摘要： An improved method for determining the magnitude of the minimum principle horizontal stress within a formation is disclosed and claimed herein. In particular, the inventive method involves the use of a wireline retrievable circumferential acoustic scanning tool during an open hole microfracture test to determine the magnitude of the minimum principle horizontal stress in the formation.
摘要翻译： 本文公开并要求了一种用于确定地层内的最小原理水平应力的大小的改进方法。 特别地，本发明的方法涉及在开孔微裂缝测试期间使用电缆可回收的圆周声波扫描工具来确定地层中最小原理水平应力的大小。
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公开(公告)号：US5259466A
公开(公告)日：1993-11-09
申请号：US897257
申请日：1992-06-11
IPC分类号： E21B43/119
CPC分类号： E21B43/119
摘要： An improved method and apparatus are provided for orienting a particular well completion in accordance with azimuths determined with respect to magnetic north. The invention permits the perforating gun of a wireline tool to be properly oriented in either a vertical or non-vertical wellbore. A wireline tool is described whose lower section contains a gun section and is rotatably joined to the upper section and may be rotated about a swivel joint assembly to move independently of the upper section and in accordance with an orienting means. The rotation may be accomplished by mechanical, hydraulic or electrical means of imparting rotation. In addition, preferred embodiments of the invention include a distant display such that operators may verify directional orientation of charges prior to initiating them. Alternative embodiments are provided for practicing the invention using multiple passes into the well which involve less risk of damage to portions of the well tool.
摘要翻译： 提供了一种改进的方法和装置，用于根据关于磁北的方位确定特定的井完井。 本发明允许有线工具的穿孔枪在垂直或非垂直井眼中被适当地定向。 描述了一种电缆工具，其下部包含枪部分并且可旋转地连接到上部部分，并且可以围绕旋转接头组件旋转以独立于上部部分并且根据定向装置而移动。 旋转可以通过赋予旋转的机械，液压或电气装置来实现。 此外，本发明的优选实施例包括远程显示器，使得操作者可以在发起之前验证电荷的方向取向。 提供替代实施例用于使用多次进入井的本发明，其涉及较小的损坏井具的部分的风险。
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公开(公告)号：US5263360A
公开(公告)日：1993-11-23
申请号：US903695
申请日：1992-06-24
IPC分类号： C09K8/58 , C09K8/62 , C09K8/70 , C09K8/72 , C09K8/82 , C09K8/94 , E21B43/00 , G01N15/08 , G01N33/24 , E21B49/02
CPC分类号： C09K8/58 , C09K8/62 , C09K8/703 , C09K8/72 , C09K8/82 , C09K8/94 , E21B43/006 , G01N15/08 , G01N33/241
摘要： The present invention provides methods and apparatus for determining the gas permeability of very low permeability subterranean formations as well as the gas permeability reducing effects of injecting one or more treatment fluids thereinto. A gas is injected into a core sample of the formation at a selected substantially constant pressure, and the injection is continued for a long period of time to insure steady state flow conditions. The temperature of the gas as it flows through the core sample and the flow rate of the gas exiting the core sample are measured, and the native state gas permeability of the core sample is calculated therefrom. One or more treatment fluids can be injected into the core sample after the native state permeability is determined. Thereafter, the gas permeability can again be determined and compared to the native state permeability.
摘要翻译： 本发明提供了用于确定非常低渗透性地下地层的气体渗透性的方法和装置以及将一种或多种处理流体注入其中的气体渗透性降低效果。 将气体以选定的基本恒定的压力注入到地层的岩心样品中，并且持续长时间的注入以确保稳态流动条件。 测量气体流过核心样品时的温度和离开核心样品的气体的流速，并计算核心样品的天然气渗透率。 在确定天然状态渗透性之后，可将一种或多种处理流体注入核心样品中。 此后，可以再次确定气体渗透性并将其与天然状态渗透率进行比较。
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公开(公告)号：US5310002A
公开(公告)日：1994-05-10
申请号：US870546
申请日：1992-04-17
IPC分类号： C09K8/58 , C09K8/62 , C09K8/70 , C09K8/72 , C09K8/82 , C09K8/94 , E21B43/00 , E21B43/22 , E21B43/26 , E21B43/27
CPC分类号： C09K8/82 , C09K8/58 , C09K8/62 , C09K8/703 , C09K8/72 , C09K8/94 , E21B43/006 , Y10S507/923
摘要： An additive for addition to conventional well treatment fluids to enhance the ability of the fluids to be recovered from subterranean formations, to generate a foam in association with the fluids and/or to enhance the ability of the fluids to remove water and other connate fluids interlocked with gas in the formations. The additive includes about 25% to about 50% by volume of a microemulsion generating component which forms an acid and/or water external microemulsion when added to the treatment fluid, and about 50% to about 75% by volume of a foaming agent component. The foaming agent component includes at least one nonionic surface active agent having an HLB of from 12 to 22. The additive is particularly suitable for addition to foam fracturing fluids useful for stimulating tight or otherwise unconventional gas formations. Also provided are a gas well treatment composition employing the inventive additive and a method of treating a subterranean formation in which the inventive composition is employed.
摘要翻译： 用于添加到常规井处理流体中的添加剂，以增强流体从地层中回收的能力，产生与流体相关联的泡沫和/或增强流体除去水和其它合生液的互锁能力 在地层中有气体。 添加剂包含约25％至约50％（体积）的微乳液产生组分，当加入到处理流体中时形成酸和/或水外部微乳液，和约50％至约75％体积的发泡剂组分。 发泡剂组分包括至少一种HLB为12至22的非离子表面活性剂。该添加剂特别适用于添加到用于刺激紧密或其它非常规气体形成的泡沫压裂液中。 还提供了采用本发明添加剂的气井处理组合物和其中使用本发明组合物的地下地层处理方法。
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公开(公告)号：US07891424B2
公开(公告)日：2011-02-22
申请号：US11090496
申请日：2005-03-25
申请人： Prentice G. Creel , B. Raghava Reddy , Eldon D. Dalrymple , Ramzi I. Abdulkadir , James J. Venditto , Ronald J. Crook
发明人： Prentice G. Creel , B. Raghava Reddy , Eldon D. Dalrymple , Ramzi I. Abdulkadir , James J. Venditto , Ronald J. Crook
IPC分类号： E21B33/13
CPC分类号： E21B27/02
摘要： A package and methods for treating a wellbore using the same. In one embodiment, the method comprises servicing a wellbore in contact with a subterranean formation by placing a material in the wellbore, wherein the material is disposed within a closed container. The material is suitable for use in a wellbore and is capable of plugging a flow pathway. The method further comprises releasing the material from the container. In an embodiment, the material is a swelling agent, which may plug a permeable zone.
摘要翻译： 一种用于处理使用其的井眼的包装和方法。 在一个实施例中，该方法包括通过将材料放置在井眼中来维修与地下地层接触的井眼，其中所述材料设置在密闭容器内。 该材料适用于井眼，并且能够堵塞流动路径。 该方法还包括从容器中释放材料。 在一个实施方案中，该材料是可以堵塞可渗透区域的溶胀剂。
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