Apparatus and method for pumping a fluid and an additive from a downhole location into a formation or to another location
    1.
    发明授权
    Apparatus and method for pumping a fluid and an additive from a downhole location into a formation or to another location 有权
    将流体和添加剂从井下位置泵送到地层或另一位置的装置和方法

    公开(公告)号:US09103199B2

    公开(公告)日:2015-08-11

    申请号:US12980535

    申请日:2010-12-29

    摘要: An apparatus and methods for pumping a fluid mixture from a wellbore location to a selected location is disclosed. The apparatus, in one embodiment, includes a container configured to be placed in the wellbore, wherein the container is configured to mix therein a fluid received from a first source and an additive received from a second source, and a pump unit coupled to the container and configured to pump the mixed fluid from the container to the selected location. The method in one embodiment includes: supplying a fluid from a first source to a container placed in a wellbore; supplying an additive from a second source to the container; allowing the fluid and the additive to mix in the container to form a mixed fluid; and pumping the mixed fluid from the container to the selected location.

    摘要翻译: 公开了一种用于将流体混合物从井筒位置泵送到选定位置的装置和方法。 在一个实施例中,该装置包括构造成放置在井筒中的容器,其中容器构造成在其中混合从第一源接收的流体和从第二源接收的添加剂,以及耦合到容器的泵单元 并且构造成将混合流体从容器泵送到所选择的位置。 在一个实施例中的方法包括:将流体从第一源供应到放置在井筒中的容器; 将来自第二源的添加剂供应到所述容器; 允许流体和添加剂在容器中混合以形成混合流体; 并将混合流体从容器泵送到所选择的位置。

    Method and apparatus for controlling bottomhole temperature in deviated wells
    2.
    发明授权
    Method and apparatus for controlling bottomhole temperature in deviated wells 有权
    控制井眼井底温度的方法和装置

    公开(公告)号:US08453760B2

    公开(公告)日:2013-06-04

    申请号:US12862656

    申请日:2010-08-24

    IPC分类号: E21B7/00 E21B47/06

    摘要: An apparatus and method for reducing temperature along a bottomhole assembly during a drilling operation is provided. In one aspect the bottomhole temperature may be reduced by drilling a borehole using a drill string having a bottomhole assembly at an end thereof, circulating a fluid through the drill string and an annulus between the drill string and the borehole, diverting a selected portion of the fluid from the drill string into the annulus at a selected location above the drill bit to reduce pressure drop across at least a portion of the bottomhole assembly to reduce temperature of the bottomhole assembly during the drilling operation.

    摘要翻译: 提供了一种用于在钻井操作期间沿井底组件降低温度的装置和方法。 在一个方面,可以通过使用在其一端具有井底组件的钻柱钻孔钻孔来降低井底温度,使流体穿过钻柱循环,并且在钻柱和钻孔之间旋转环,将所选择的部分 流体在钻头上方的选定位置从钻柱进入环形空间,以减少穿过井底组件的至少一部分的压降,以降低钻井操作期间井底组件的温度。

    Formation and control of gas hydrates
    3.
    发明授权
    Formation and control of gas hydrates 有权
    天然气水合物的形成与控制

    公开(公告)号:US07597148B2

    公开(公告)日:2009-10-06

    申请号:US11409687

    申请日:2006-04-24

    IPC分类号: E21B28/00

    摘要: Gas hydrates, particularly natural gas hydrates e.g. methane hydrates, may be formed and controlled within conduits and vessels by imparting energy to gas and water, for instance using agitation or vibration. The systems and methods allow for improved flow characteristics for fluids containing the gases, e.g. hydrocarbon fluids being transported, and for improved overall efficiencies. The gas and water within a gas flow path may be perturbed or agitated to initiate formation of relatively small hydrate particles. The hydrate particles continue to form as long as energy is imparted and water and hydrate guest molecules are available. High amplitude agitation of the gas and water will repeatedly break up agglomerated hydrate particles that form and encourage the formation of more and smaller particles. As more hydrate forms in this manner, less and less free water may be available proximate the gas and water contact.

    摘要翻译: 天然气水合物,特别是天然气水合物。 甲烷水合物可以通过向气体和水赋予能量(例如使用搅拌或振动)在管道和容器内形成和控制。 这些系统和方法允许改善包含气体的流体的流动特性。 运输碳氢化合物流体,提高整体效率。 气流通道内的气体和水可被扰动或搅动以引发相对较小的水合物颗粒的形成。 只要施加能量,水合物颗粒继续形成,并且可以获得水和水合物客体分子。 气体和水的高振幅搅拌将反复破坏聚集的水合物颗粒,形成并促进形成越来越小的颗粒。 当以这种方式形成更多的水合物时,在气体和水接触附近可以获得越来越少的游离水。

    Drilling efficiency through beneficial management of rock stress levels via controlled oscillations of subterranean cutting elements
    4.
    发明授权
    Drilling efficiency through beneficial management of rock stress levels via controlled oscillations of subterranean cutting elements 有权
    通过地下切割元件的受控振荡有利地管理岩石应力水平,从而提高钻井效率

    公开(公告)号:US07341116B2

    公开(公告)日:2008-03-11

    申请号:US11038889

    申请日:2005-01-20

    IPC分类号: E21B7/24

    CPC分类号: E21B7/24

    摘要: A device and system for improving efficiency of subterranean cutting elements uses a controlled oscillation super imposed on steady drill bit rotation to maintain a selected rock fracture level. In one aspect, a selected oscillation is applied to the cutting element so that at least some of the stress energy stored in an earthen formation is maintained after fracture of the rock is initiated. Thus, this maintained stress energy can thereafter be used for further crack propagation. In one embodiment, an oscillation device positioned adjacent to the drill bit provides the oscillation. A control unit can be used to operate the oscillation device at a selected oscillation. In one arrangement, the control unit performs a frequency sweep to determine an oscillation that optimizes the cutting action of the drill bit and configures the oscillation device accordingly. One or more sensors connected to the control unit measure parameters used in this determination.

    摘要翻译: 用于提高地下切割元件效率的装置和系统使用施加在稳定钻头旋转上的受控振荡来保持选定的岩石断裂水平。 在一个方面,选择的振动被施加到切割元件,使得在开始破坏岩石之后,保持存储在土层中的至少一些应力能量。 因此,此后保持的应力能量可以用于进一步的裂纹扩展。 在一个实施例中,邻近钻头定位的振动装置提供振荡。 可以使用控制单元以选定的振荡来操作振荡装置。 在一种布置中,控制单元执行频率扫描以确定优化钻头的切割动作并相应地配置振荡装置的振荡。 连接到控制单元的一个或多个传感器测量在该确定中使用的参数。

    Method for controlling fines migrations
    6.
    发明授权
    Method for controlling fines migrations 失效
    控制罚款迁移的方法

    公开(公告)号:US4018285A

    公开(公告)日:1977-04-19

    申请号:US668557

    申请日:1976-03-19

    CPC分类号: C09K8/5086 C09K8/5755

    摘要: A method of controlling the migration of fines in a subterranean formation comprising contacting the formation with a dilute resin solution; displacing the resin solution into the formation, preferably with an overflush oil, so as to leave behind a thin film of resin solution; extracting the diluent present in the resin, and then curing the resin to an infusible state. The preferred resin is a one-step phenolic type resin which cures at formation temperatures and which should comprise from about 5 to about 30 weight percent of the resin solution and preferably about 10 to 20 weight percent.

    摘要翻译: 控制地层中细粒迁移的方法,包括使地层与稀树脂溶液接触; 将树脂溶液置于地层中,优选用过漱油,以留下树脂溶液薄膜; 提取存在于树脂中的稀释剂,然后将树脂固化成不可渗透的状态。 优选的树脂是在成型温度下固化的一步酚醛树脂,其应包含约5至约30重量%的树脂溶液,优选约10至20重量%。

    Method and apparatus for gravel packing wells
    7.
    发明授权
    Method and apparatus for gravel packing wells 失效
    砾石填充井的方法和装置

    公开(公告)号:US4018283A

    公开(公告)日:1977-04-19

    申请号:US670303

    申请日:1976-03-25

    申请人: Larry A. Watkins

    发明人: Larry A. Watkins

    IPC分类号: E21B43/04 E21B43/08 E21B43/10

    摘要: The perforations of a tubular pipe are sealed with a selectively removable plugging material. The pipe is then wire wrapped to form a well screen. The annular passage defined by the pipe and wire wrapping is restricted enough so that the flow resistance in the annular passage is sufficient to maintain high fluid flow velocity outside the well screen during gravel packing so as to prevent the formation of gravel dunes. After gravel packing is completed, the plugging material is removed, permitting the passage of fluids through the well screen and pipe mandrel.

    摘要翻译: 管状管的穿孔用可选择性地移除的封堵材料密封。 然后将管线缠绕以形成井筛。 由管线和线缠绕限定的环形通道受到足够的限制,使得环形通道中的流动阻力足以在砾石充填期间将高流体流速保持在井眼外部,以防止形成砾石沙丘。 在砾石填充完成之后,堵塞材料被移除,允许流体通过井眼和管心轴。

    SYSTEM AND METHOD FOR PRODUCING METHANE FROM A METHANE HYDRATE FORMATION
    8.
    发明申请
    SYSTEM AND METHOD FOR PRODUCING METHANE FROM A METHANE HYDRATE FORMATION 审中-公开
    从甲烷水合物生成甲烷的系统和方法

    公开(公告)号:US20150027697A1

    公开(公告)日:2015-01-29

    申请号:US13952266

    申请日:2013-07-26

    IPC分类号: E21B43/24 E21B43/12

    摘要: A completion system includes a first borehole structure having a first section formed proximate to a volume of methane hydrate located at a subsurface location. A second borehole structure has a second section formed proximate to the volume of methane hydrate, the first section positioned deeper than the second section with respect to gravity. A first string is positioned in the first borehole structure and arranged to convey a heat-bearing fluid through the first string into contact with a volume of methane hydrate in order to liberate methane from the methane hydrate. A second string is positioned in the second borehole structure and arranged to produce the methane.

    摘要翻译: 完井系统包括第一井眼结构,其具有靠近位于地下位置的一定体积的甲烷水合物形成的第一部分。 第二钻孔结构具有靠近甲烷水合物的体积形成的第二部分,第一部分相对于重力定位成比第二部分更深。 第一串被定位在第一钻孔结构中,并布置成将承载流体通过第一串传送到与一定体积的甲烷水合物接触以便从甲烷水合物中释放出甲烷。 第二串被定位在第二钻孔结构中并被布置成产生甲烷。

    Wellbore operations using controlled variable density fluid
    9.
    发明授权
    Wellbore operations using controlled variable density fluid 失效
    井眼操作使用受控变量密度流体

    公开(公告)号:US08455402B2

    公开(公告)日:2013-06-04

    申请号:US13688366

    申请日:2012-11-29

    IPC分类号: C09K8/03

    摘要: Fluid systems may contain elements to provide changes in bulk fluid density in response to various environmental conditions. One environmental driver to the variable density is pressure; other environmental drivers include, but are not limited to, temperature or changes in chemistry. The variable density of the fluid is beneficial for controlling sub-surface pressures within desirable pore pressure and fracture gradient envelopes. The variability of fluid density permits construction and operation of a wellbore with much longer hole sections than when using conventional single gradient fluids.

    摘要翻译: 流体系统可以包含响应于各种环境条件来提供散装流体密度变化的元件。 可变密度的一个环境驱动力是压力; 其他环境驱动因素包括但不限于温度或化学变化。 流体的可变密度有利于控制所需孔隙压力和裂缝梯度包络内的下表面压力。 流体密度的变化允许建造和操作具有比使用常规单梯度流体时更长的孔部分的井眼。

    WELLBORE OPERATIONS USING CONTROLLED VARIABLE DENSITY FLUID
    10.
    发明申请
    WELLBORE OPERATIONS USING CONTROLLED VARIABLE DENSITY FLUID 失效
    使用可变密度流体进行井筒操作

    公开(公告)号:US20130087338A1

    公开(公告)日:2013-04-11

    申请号:US13688366

    申请日:2012-11-29

    摘要: Fluid systems may contain elements to provide changes in bulk fluid density in response to various environmental conditions. One environmental driver to the variable density is pressure; other environmental drivers include, but are not limited to, temperature or changes in chemistry. The variable density of the fluid is beneficial for controlling sub-surface pressures within desirable pore pressure and fracture gradient envelopes. The variability of fluid density permits construction and operation of a wellbore with much longer hole sections than when using conventional single gradient fluids.

    摘要翻译: 流体系统可以包含响应于各种环境条件来提供散装流体密度变化的元件。 可变密度的一个环境驱动力是压力; 其他环境驱动因素包括但不限于温度或化学变化。 流体的可变密度有利于控制所需孔隙压力和裂缝梯度包络内的下表面压力。 流体密度的变化允许建造和操作具有比使用常规单梯度流体时更长的孔部分的井眼。