FRACTURING METHOD FOR SUBTERRANEAN RESERVOIRS
    41.
    发明申请
    FRACTURING METHOD FOR SUBTERRANEAN RESERVOIRS 有权
    地下储层破碎方法

    公开(公告)号:US20100006293A1

    公开(公告)日:2010-01-14

    申请号:US12172413

    申请日:2008-07-14

    IPC分类号: E21B43/26

    CPC分类号: E21B43/267

    摘要: A method of creating multiple fractures in a well traversing a formation is described using pressurized fluids in a highly deviated or horizontal section of the well at a pressure above the fracturing pressure of the formation, wherein for creating a fracture the pressurized fluid is alternated between an acid fracturing fluid and a proppant loaded fluid, such that the proppant blocks the flow of pressurized fluid into a fracture created during a previous step of the method and the subsequently pressurized acid fracturing fluid creates a new fracture at a location along the highly deviated or horizontal section different from the location of the previously created fracture.

    摘要翻译: 使用在井的高度偏斜或水平部分中的压力高于地层压裂压力的压力来描述在穿过地层的井中产生多个裂缝的方法,其中为了产生断裂,加压流体在 酸性压裂液和支撑剂加载的流体,使得支撑剂阻止加压流体的流动进入在该方法的先前步骤期间产生的裂缝中,并且随后的加压酸压裂液在沿着高度偏离或水平的位置处产生新的断裂 不同于先前创建的骨折的位置。

    Solid sandstone dissolver
    42.
    发明授权
    Solid sandstone dissolver 有权
    实心砂岩溶解器

    公开(公告)号:US07540328B2

    公开(公告)日:2009-06-02

    申请号:US11858266

    申请日:2007-09-20

    IPC分类号: E21B43/27

    CPC分类号: C09K8/62

    摘要: A dry solid composition is disclosed that, when added to an aqueous liquid, provides a slurry that can be used in sandstone acid fracturing. The slurry generates hydrofluoric acid downhole to etch the sandstone fracture faces created. The chemical and physical properties of the composition result in very uneven etching of the fracture faces, enhancing the fluid conductivity of the final fracture. Optionally, inert masking materials may be included in the dry composition, or added to the slurry, to increase the inhomogeneity of the etching and further increase the fluid conductivity.

    摘要翻译: 公开了一种干固体组合物,当加入到含水液体中时,提供可用于砂岩酸压裂的浆料。 该浆液在井下产生氢氟酸以蚀刻产生的砂岩断裂面。 组合物的化学和物理性质导致断裂面的非常不均匀的蚀刻,增强了最终断裂的流体导电性。 任选地,惰性掩蔽材料可以包括在干燥组合物中或加入到浆料中,以增加蚀刻的不均匀性并进一步提高流体导电性。

    Method and apparatus for placement of multiple fractures in open hole wells

    公开(公告)号:US07096954B2

    公开(公告)日:2006-08-29

    申请号:US10039019

    申请日:2001-12-31

    IPC分类号: E21B43/14 E21B43/26

    CPC分类号: E21B43/26

    摘要: A method and apparatus is provided for created multiple fractures in a subterranean formation with a single, continuous treatment operation. A plurality of burst disk assemblies are included, each having an independent burst pressure and corresponding to a specific interval to be treated, whereby the assemblies are arranged on a work or completion string such that the assembly with the lowest burst pressure is positioned at the toe, or lowest position, and subsequent assemblies have increasing burst pressures toward the heel of the string. As fluid is pumped down the string, pressure builds up to exceed the burst pressure of the first disk, allowing treatment fluid to contact the formation. Once a first interval treated or fractured, it may be isolated thereby allowing pressure to again build up in the string and burst subseqent disks.

    Foaming agents for use in coal seam reservoirs
    45.
    发明授权
    Foaming agents for use in coal seam reservoirs 失效
    用于煤层水库的发泡剂

    公开(公告)号:US06915854B2

    公开(公告)日:2005-07-12

    申请号:US10775861

    申请日:2004-02-10

    CPC分类号: C09K8/703

    摘要: A well treatment fluid composition that comprises a carrier fluid and an amphoteric surfactant, and optionally a viscosifying agent and proppant, is well suited for use in fracturing coal beds to stimulate methane production. The composition preferably is a foam that comprises a gas such as nitrogen or air. Preferably, the surfactant has the formula R—NH2—(CH2)n—C(O)OX wherein R is a saturated or unsaturated alkyl group having from 6-20 carbon atoms, n is from 2-6, and X is hydrogen or a salt forming cation.

    摘要翻译: 包含载体流体和两性表面活性剂以及任选的增粘剂和支撑剂的良好处理流体组合物非常适用于压裂煤层以刺激甲烷生产。 组合物优选是包含气体如氮气或空气的泡沫体。 优选地,表面活性剂具有式<βin-line-formula description =“In-line Formulas”end =“lead”→R-NH 2 - (CH 2)2 其中R是饱和或不饱和的具有6个碳原子的烷基,其中R是饱和或不饱和的烷基, -20个碳原子,n为2-6,X为氢或形成盐的阳离子。

    Methods and compositions for testing subterranean formations
    46.
    发明授权
    Methods and compositions for testing subterranean formations 失效
    测试地下地层的方法和组成

    公开(公告)号:US5964295A

    公开(公告)日:1999-10-12

    申请号:US727877

    申请日:1996-10-09

    摘要: The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscoelastic surfactant fluid containing wormlike micelles are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing methods useful for increasing hydrocarbon production, limiting connate water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of micelles of surfactant in aqueous zones of the subterranean formation facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production.

    摘要翻译: 通过水力压裂地下地层来改善地下地层烃类的回收。 使用含有蠕虫状胶束的粘弹性表面活性剂流体的压裂液可用于改善烃的回收并限制压裂流体进入地层断裂面的损失。 本发明还涉及用于增加碳氢化合物生产,限制合生水产生,抵抗压裂流体损失到地层中的新型压裂方法,以及降低混合和泵送压裂液体的设备要求。 表面活性剂在地下水层的表面活性剂的作用有助于一旦断裂的井放回生产中,增加量的烃的回流。

    Stimulation through fracturing while drilling
    47.
    发明授权
    Stimulation through fracturing while drilling 有权
    钻孔时通过压裂刺激

    公开(公告)号:US08714244B2

    公开(公告)日:2014-05-06

    申请号:US11959278

    申请日:2007-12-18

    IPC分类号: E21B49/00

    CPC分类号: E21B43/26 E21B7/00

    摘要: A method for preparing a formation surrounding a wellbore to bear hydrocarbons through a borehole is disclosed. In one step, a bottomhole assembly is inserted into the borehole. The formation is drilled with the bottomhole assembly. The formation may be characterized with logging tools, probes, sensors, seismic system and/or the like to create first information. One or more fractures are placed in the formation without removal of the bottomhole assembly from the wellbore. Further, continuous drilling of the formation is performed with the bottomhole assembly after/during placing the fractures. Further characterizing of the formation with the probes, sensors/systems or the like is performed to produce second information. Another fracture is placed with feedback from the second information. Repeating the drilling, characterizing and placing of fractures as necessary during the formation preparing process.

    摘要翻译: 公开了一种通过钻孔制备围绕井筒以承载烃的地层的方法。 在一个步骤中,将井底组件插入钻孔中。 井底组件钻出地层。 地层可以用测井工具,探测器,传感器,地震系统等来表征,以产生第一信息。 将一个或多个裂缝放置在地层中,而不从井筒移除井底组件。 此外,在放置裂缝之后/期间,利用井底组件进行地层的连续钻孔。 执行用探针,传感器/系统等进一步表征形成以产生第二信息。 第二个信息的反馈放置另一个裂缝。 在成型准备过程中,根据需要重复钻孔,表征和放置骨折。

    Methods of producing flow-through passages in casing, and methods of using such casing
    48.
    发明授权
    Methods of producing flow-through passages in casing, and methods of using such casing 有权
    在套管中生产流通通道的方法,以及使用这种套管的方法

    公开(公告)号:US08020620B2

    公开(公告)日:2011-09-20

    申请号:US12878498

    申请日:2010-09-09

    IPC分类号: E21B43/10 E21B29/02

    CPC分类号: E21B43/086 E21B43/28

    摘要: Methods of making and using wellbore casing are described, one method comprising providing a plurality of flow-through passages in a portion of a casing while the casing is out of hole; temporarily plugging the flow-through passages with a composition while out of hole; running the casing in hole in a wellbore intersecting a hydrocarbon-bearing formation; and exposing the composition to conditions sufficient to displace the composition from the flow-through passages while in hole. Methods of using the casing may include pumping a stimulation treatment fluid through the casing string and into a formation through the flow-through passages in the first casing joint; plugging the flow-through passages in the first casing section; and exposing a second casing joint of the casing string to conditions sufficient to displace the composition from the flow-through passages in the second casing joint.

    摘要翻译: 描述了制造和使用井眼套管的方法,一种方法包括在壳体不在孔的同时在壳体的一部分中提供多个流通通道; 在没有孔的情况下用组合物暂时堵塞流通通道; 在与含烃地层相交的井眼中的孔中运行套管; 并将组合物暴露于足以在孔中从组合物从流通通道移位的条件。 使用壳体的方法可以包括通过套管柱泵送刺激处理流体并通过第一套管接头中的流通通道进入地层; 堵塞第一壳体部分中的流通通道; 以及将所述套管柱的第二套管接头暴露于足以使所述组合物从所述第二套管接头中的所述流通通道移位的状态。

    Method and system for fracturing subsurface formations during the drilling thereof
    50.
    发明授权
    Method and system for fracturing subsurface formations during the drilling thereof 有权
    在钻井期间压裂地下地层的方法和系统

    公开(公告)号:US07963325B2

    公开(公告)日:2011-06-21

    申请号:US11950487

    申请日:2007-12-05

    IPC分类号: E21B43/26

    摘要: A method for fracturing a wellbore while drilling a wellbore includes inserting a drill string into a wellbore. A fluid is pumped into at least one of an interior passage in the drill string and an annular space between a wall of the wellbore and the drill string. At least one of a pressure and a temperature of the fluid proximate a lower end of the drill string is measured and the measurements are transmitted to the surface substantially contemporaneously with the measuring. At least one of a flow rate and a pressure of the fluid is controlled in response to the measurements to selectively create fractures in formations adjacent to the wellbore.

    摘要翻译: 在钻井时破裂井眼的方法包括将钻柱插入井筒中。 流体被泵送到钻柱中的内部通道中的至少一个以及井眼的壁和钻柱之间的环形空间。 测量靠近钻柱的下端的流体的压力和温度中的至少一个,并且测量基本上与测量同时传递到表面。 响应于测量来控制流体的流量和压力中的至少一个,以选择性地在靠近井眼的地层中形成裂缝。