Parallel horizontal wells
    11.
    发明授权
    Parallel horizontal wells 失效
    平行水平井

    公开(公告)号:US4700779A

    公开(公告)日:1987-10-20

    申请号:US794369

    申请日:1985-11-04

    IPC分类号: E21B43/24 E21B43/30

    CPC分类号: E21B43/305 E21B43/24

    摘要: The disclosed invention is a method of recovering hydrocarbons through parallel horizontal wells by use of steam and water injection. Steam is injected into two parallel horizontal wells to stimulate the formation and then the second horizontal well is converted to a production well. About the time of steam breakthrough at the second well, the steam injection at the first well is converted to water injection, production is suspended from the second well, and steam is injected through the second and third wells. After a suitable period of stimulation time, the third well is converted to a producing well, steam injection is continued through the second well, and water injection is continued through the first well.

    摘要翻译: 所公开的发明是通过使用蒸汽和水注入通过平行水平井回收烃的方法。 将蒸汽注入两个平行的水平井中以刺激形成,然后将第二水平井转化为生产井。 关于第二口井的蒸汽渗透时间,将第一井的蒸汽注入转化为注水,从第二井悬浮生产,通过第二井和第三井注入蒸汽。 在适当的刺激时间之后,将第三井转化为生产井,继续通过第二井进行蒸汽喷射,并持续通过第一井的注水。

    Method and apparatus for gravel packing horizontal wells
    12.
    发明授权
    Method and apparatus for gravel packing horizontal wells 失效
    砾石包装水平井的方法和装置

    公开(公告)号:US4558742A

    公开(公告)日:1985-12-17

    申请号:US630506

    申请日:1984-07-13

    IPC分类号: E21B7/04 E21B43/04

    CPC分类号: E21B7/04 E21B43/04

    摘要: A well completion and the method therefor for a wellbore which extends generally horizontally of a subterranean layer comprised primarily of unconsolidated sand particles which hold a viscous hydrocarbon. The completion includes an elongated perforated liner which is positioned in the wellbore. The liner is substantially surrounded by a gravel pack which functions to limit the amount of sand particles which are carried from the subterranean layer into the liner in response to the introduction of a flow of a hot stimulating fluid into the substrate.

    摘要翻译: 完井及其用于井眼的方法,该井眼大体上水平地延伸在地下层中,主要由保持粘性烃的未固结的砂粒组成。 完成包括位于井眼中的细长的穿孔衬里。 衬里基本上被砾石充填包围,该砾石充填件用于限制从底层承载到衬里中的砂颗粒的数量,以响应于将热刺激流体流引入衬底。

    Method for producing viscous hydrocarbons from discrete segments of a
subterranean layer
    13.
    发明授权
    Method for producing viscous hydrocarbons from discrete segments of a subterranean layer 失效
    从地下层的离散段生产粘性烃的方法

    公开(公告)号:US4535845A

    公开(公告)日:1985-08-20

    申请号:US528672

    申请日:1983-09-01

    IPC分类号: E21B43/24 E21B43/30

    CPC分类号: E21B43/30 E21B43/24

    摘要: Method for producing viscous hydrocarbon products such as heavy crude oil or bitumen from tar sands, which products must be thermally converted into flowable condition. A discrete vertical subsection of a productive subterranean layer is marginated by a pair of spaced apart vertical wells and a horizontal well that lies substantially horizontal to the vertical wells. Controlled, pressurized flows of a heating medium such as steam are introduced to one of the vertical wells and to the horizontal well, whereby to establish a controlled thermal front. The latter is progressively urged by the pressurized steam, through the discrete vertical subsection and toward the other of the vertical wells at which hydrocarbon emulsion is produced.

    摘要翻译: 用于从焦油砂生产粘性烃产品如重质原油或沥青的方法,该产品必须热转化成可流动状态。 生产性地下层的离散垂直分段由一对间隔开的垂直井和垂直井基本上水平的水平井边缘化。 将诸如蒸汽的加热介质的受控加压流引入垂直孔和水平井中的一个,从而建立受控的热前沿。 后者逐渐被加压蒸汽,通过离散的垂直分段和向生成烃乳液的垂直孔中的另一个排出。

    Oil recovery process employing horizontal and vertical wells in a
modified inverted 5-spot pattern
    14.
    发明授权
    Oil recovery process employing horizontal and vertical wells in a modified inverted 5-spot pattern 失效
    采用水平井和垂直井进行改造的倒置5点模式的采油过程

    公开(公告)号:US5320170A

    公开(公告)日:1994-06-14

    申请号:US921675

    申请日:1992-07-30

    IPC分类号: E21B43/24 E21B43/30

    CPC分类号: E21B43/24 E21B43/30

    摘要: A method of recovering hydrocarbons from underground formations by employing a modified inverted 5-spot well pattern, which comprises drilling four substantially horizontal wells located along each of the four sides of an inverted 5-spot vertical well pattern, injecting an oil recovery fluid through the central injection well, producing hydrocarbons and other fluids through the vertical corner production wells, ceasing production through the vertical corner wells, and producing hydrocarbons and other fluids through the horizontal wells.

    摘要翻译: 通过采用改进的倒置5点阱图案从地下地层中回收碳氢化合物的方法,该方法包括沿着倒置的5点垂直井模式的四条边中的四个大致水平的井钻井,将油回收流体通过 中央注水井,通过垂直角生产井生产碳氢化合物和其他流体,通过垂直角井停止生产,并通过水平井生产碳氢化合物和其他流体。

    Application of multiphase generation process in a CO.sub.2 flood for
high temperature reservoirs
    15.
    发明授权
    Application of multiphase generation process in a CO.sub.2 flood for high temperature reservoirs 失效
    多相生成过程在二氧化碳洪水中的应用于高温水库

    公开(公告)号:US5046561A

    公开(公告)日:1991-09-10

    申请号:US492006

    申请日:1990-03-12

    IPC分类号: E21B43/16 E21B43/24

    摘要: A high temperature reservoir is preconditioned by injection of cold water until a zone around the injection well reaches a temperature suitable for multiphase generation conditions. A subsequent carbon dioxide injection creates a multiphase slug near the wellbore region. The multiphase slug is propagated through the reservoir by continued injection of CO.sub.2 or water alternating with gaseous CO.sub.2.

    摘要翻译: 通过注入冷水来预处理高温储层,直到注入井周围的区域达到适合于多相生成条件的温度。 随后的二氧化碳注入在井眼区域附近产生多相块塞。 通过持续注入二氧化碳或水与气态二氧化碳交替进行,多相段塞通过储层传播。

    Patterns of horizontal and vertical wells for improving oil recovery
efficiency
    16.
    发明授权
    Patterns of horizontal and vertical wells for improving oil recovery efficiency 失效
    水平井和垂直井的模式,以提高采油效率

    公开(公告)号:US4702314A

    公开(公告)日:1987-10-27

    申请号:US835702

    申请日:1986-03-03

    IPC分类号: E21B43/30

    CPC分类号: E21B43/305

    摘要: The invention is a method of recovering hydrocarbons from an underground formation by employing a modified 5 spot or 9 spot well pattern which contains a substantially vertical central well and four substantially horizontal wells, each having one end located relatively near the center of a substantially rectangular well pattern and the other ends located relatively near each of the corners of the well pattern. Preferably, the well pattern will also contain four substantially vertical corner wells located approximately at the four corners of the substantially rectangular modified 5 spot or 9 spot well pattern.

    摘要翻译: 本发明是一种从地下地层中回收碳氢化合物的方法,该方法是采用一个修改后的5点或9个点孔图案,其中包含一个基本垂直的中心井和四个基本上水平的井,每个井的一端位于相对靠近基本矩形井的中心 并且位于相对靠近阱图案的每个角部的另一端。 优选地,阱图案还将包含大致位于大致矩形修改的5点或9点阱图案的四个角处的四个基本垂直的角点孔。

    Patterns of horizontal and vertical wells for improving oil recovery
efficiency
    17.
    发明授权
    Patterns of horizontal and vertical wells for improving oil recovery efficiency 失效
    水平井和垂直井的模式,以提高采油效率

    公开(公告)号:US4645003A

    公开(公告)日:1987-02-24

    申请号:US812693

    申请日:1985-12-23

    IPC分类号: E21B43/24 E21B43/30

    CPC分类号: E21B43/305 E21B43/24

    摘要: The disclosed invention is a method of recovering hydrocarbons by employing a seven well pattern comprising five horizontal production wells and two vertical injection wells. Four of the horizontal wells form the four sides of a substantially rectangular pattern with the fifth horizontal well aligned on a diagonal running between two opposite corners of the substantially rectangular pattern formed by the first four horizontal wells. Two vertical injection wells are approximately located near the center of the two substantially triangular patterns formed by the five horizontal wells.

    摘要翻译: 所公开的发明是通过采用包括五个水平生产井和两个垂直注入井的七井模式来回收烃的方法。 四个水平井形成基本上矩形图案的四个边,其中第五个水平井在由前四个水平井形成的大致矩形图案的两个相对角之间的对角线上对齐。 两个垂直注入井大致位于由五个水平井形成的两个基本三角形图案的中心附近。

    Method and apparatus for producing viscous hydrocarbons from a
subterranean formation
    18.
    发明授权
    Method and apparatus for producing viscous hydrocarbons from a subterranean formation 失效
    从地层中生产粘性烃的方法和装置

    公开(公告)号:US4577691A

    公开(公告)日:1986-03-25

    申请号:US649260

    申请日:1984-09-10

    IPC分类号: E21B43/24 E21B43/30

    摘要: Method and apparatus for thermally stimulating bitumen and other viscous hydrocarbon products from a subterranean formation in which the product is held. A plurality of wells are formed in the layer, which wells extend from the surface into a generally horizontal direction through the productive subterranean layer. The respective wells are spaced vertically apart whereby a thermal stimulating fluid such as steam can be selectively injected into discrete segments of the layer. Such injection will achieve the most effective sweeping action by the stimulating fluid through the productive layer. There results an orderly downward flow of the produced product and a more uniform and efficient distribution of heat in the stimulated formation.

    摘要翻译: 用于从其中保持产品的地下地层热刺激沥青和其它粘性烃产品的方法和装置。 在该层中形成多个孔,该井从表面延伸通过生产性地下层的大致水平的方向。 相应的井垂直间隔开,由此可以将诸如蒸汽的热刺激流体选择性地注入到该层的离散区段中。 这种注射将通过刺激流体通过生产层实现最有效的清扫作用。 导致所产生的产物有序地向下流动,并且在受刺激的地层中产生更均匀和有效的热分布。

    Method and apparatus for determining quality and mass flow rate of
flowing steam
    19.
    发明授权
    Method and apparatus for determining quality and mass flow rate of flowing steam 失效
    用于确定流动蒸汽质量和质量流量的方法和装置

    公开(公告)号:US4576036A

    公开(公告)日:1986-03-18

    申请号:US606789

    申请日:1984-05-03

    IPC分类号: G01F1/36 G01F1/74 G01N25/60

    CPC分类号: G01F1/36 G01F1/74 G01N25/60

    摘要: A method based on an orifice flow equation is provided for determining both the quality and the mass flow rate of steam flowing in a line, such as to an injection well in steam flooding operations for recovery of petroleum. A sample of the steam is drawn off from the steam line through an orifice and is condensed and collected. The mass of sample collected and the time to collect it give the mass flow rate of the sample. Pressure and temperature measurements at the sample line orifice together with the measured mass flow rate of the sample and with known constants are used in the orifice flow equation to derive the sample steam quality. The line steam also flows through an orifice, with pressure and temperature measurements thereon. The desired quality of the line steam is the same as the derived quality of the sample steam, since care is taken to make them the same. The orifice flow equation is used again, substituting the derived sample steam quality for the line steam quality, together with the temperature and pressure measurements at the steam line orifice and with known constants, to derive the desired mass flow rate of the line steam.

    摘要翻译: 提供了一种基于孔流动方程的方法,用于确定在一条生产线中流动的蒸汽的质量流量和质量流量,如用于回收石油的蒸汽驱油操作中的注入井。 蒸汽样品通过孔口从蒸汽管线中排出并被冷凝和收集。 收集的样品的质量和收集的时间给出样品的质量流量。 在样品管孔处的压力和温度测量以及样品的测量质量流量和已知常数用于孔流动方程中以导出样品蒸汽质量。 管线蒸汽还流过孔口,其上具有压力和温度测量。 所需的线蒸汽质量与样品蒸汽的导出质量相同,因为需要注意使它们相同。 再次使用孔流动方程,将导出的样品蒸汽质量代入线蒸汽质量,连同蒸汽管孔口处的温度和压力测量值以及已知常数,得出管线蒸汽的期望质量流量。

    Method for forming a gravel packed horizontal well
    20.
    发明授权
    Method for forming a gravel packed horizontal well 失效
    形成砾石水平井的方法

    公开(公告)号:US4553595A

    公开(公告)日:1985-11-19

    申请号:US616090

    申请日:1984-06-01

    IPC分类号: E21B7/04 E21B43/04 E21B43/30

    CPC分类号: E21B43/305 E21B43/04 E21B7/04

    摘要: Method for forming a gravel pack in-situ about a horizontal well in a sandy formation. The gravel pack is formed in two separate steps so that part of the pack will function as a foundation for slidably inserting and supporting the well liner. Thereafter, the remainder of the pack is completed about the liner by introducing a gravel slurry that accumulates on the foundation and about the liner.

    摘要翻译: 用于在砂岩层中围绕水平井原位形成砾石堆的方法。 砾石包装形成在两个分开的步骤中,使得包装的一部分将用作可滑动地插入和支撑井筒的基础。 此后,通过引入积聚在基础上和围绕衬里的砾石浆料,围绕衬管完成包装的剩余部分。