High vertical conformance steam drive oil recovery method
    1.
    发明授权
    High vertical conformance steam drive oil recovery method 失效
    高垂直一致性蒸汽驱动油回收方法

    公开(公告)号:US4166504A

    公开(公告)日:1979-09-04

    申请号:US936557

    申请日:1978-08-24

    IPC分类号: C09K8/592 E21B43/16 E21B43/24

    CPC分类号: E21B43/16 C09K8/592 E21B43/24

    摘要: The vertical conformance of a steam drive process is improved and steam override reduced by penetrating the zone between one injection well and one producing well, with an infill well which is in fluid communication with the bottom half or less of the formation, and producing petroleum from the infill well after steam channeling has occurred at the production well; then converting the infill well from a producer to an injector and injecting steam into the lower portion of the formation via the infill well and recovering fluids from the production well. Two separate communication paths are established, one between the surface and the upper half or less of the formation, and one between the bottom half or less of the formation in the producing well, or in the infill well, or injection well, or combination of two or more thereof. A fluid having lower mobility than steam is injected into the upper part of the formation via one or more of the communication means after steam override has begun, to resaturate the steam swept zone with the low mobility fluid to prevent further steam flow therethrough and force steam to flow into unswept portions of the formation.

    摘要翻译: 蒸汽驱动过程的垂直一致性得到改善,并且通过穿透一个注入井和一个生产井之间的区域而减少蒸汽超驰,其中填充井与地层的下半部或更少流体连通,并且从地层中产生石油 在生产井发生蒸汽通道后,填充良好; 然后将填充物从生产者转化为注入器,并通过填充井将蒸汽注入地层的下部,并从生产井回收流体。 建立了两个单独的通信路径,一个位于地层的表面和上半部分或更少之间,一个位于生产井中的地层的下半部分或更少之间,或在填充井中,或注入井中,或组合 两个或更多个。 在蒸汽超驰开始之后,具有较低流动性的流体比蒸汽低的流体通过一个或多个连通装置被注入到地层的上部中,以便利用低迁移率流体使蒸汽扫过区域重新饱和,以防止进一步的蒸汽流过其中并且迫使蒸汽 流入地层的未被吹扫的部分。

    Method of treating a high temperature formation to permit the use
therein of temperature sensitive hydrophilic, viscosity increasing
polymers
    2.
    发明授权
    Method of treating a high temperature formation to permit the use therein of temperature sensitive hydrophilic, viscosity increasing polymers 失效
    处理高温地层以允许在其中使用温度敏感的亲水性,增粘聚合物的方法

    公开(公告)号:US4050513A

    公开(公告)日:1977-09-27

    申请号:US705737

    申请日:1976-07-15

    摘要: Polymer flooding is an effective means of increasing the sweep efficiency of a displacement process for recovering petroleum from a subterranean, petroleum containing formation; however, most polymers suitable for use in flooding operations hydrolyze or otherwise decompose at temperatures above about 150.degree. F to 200.degree. F, and the temperature of many subterranean petroleum-containing formations is in excess of 150.degree. F-200.degree. F. Polymers may be employed in tertiary recovery in formations whose temperatures are greater than the temperature stability limit of the polymer if the formation temperature is first reduced by introducing an aqueous fluid such as water at a temperature substantially below the temperature limit of the polymer into the formation for a period of time sufficient to reduce the formation temperature to a value at or below the temperature tolerance level of the polymer.

    摘要翻译: 聚合物淹没是提高用于从含地下石油的地层回收石油的置换过程的扫掠效率的有效手段; 然而,适用于淹水操作的大多数聚合物在高于约150°F至200°F的温度下会水解或以其它方式分解,并且许多地下含石油地层的温度超过150°F-200°F。聚合物可能 如果首先通过在基本上低于聚合物的温度极限的温度下引入含水流体如水的水溶液进入到地层的形成中,则其温度高于聚合物的温度稳定极限的地层中的三次回收, 足以将地层温度降低到等于或低于聚合物的耐温水平的值的时间段。

    Thermal injection and in situ combustion process for heavy oils
    3.
    发明授权
    Thermal injection and in situ combustion process for heavy oils 失效
    重油的热注射和原位燃烧过程

    公开(公告)号:US4495994A

    公开(公告)日:1985-01-29

    申请号:US463203

    申请日:1983-02-02

    IPC分类号: E21B43/24 E21B43/243

    CPC分类号: E21B43/243 E21B43/24

    摘要: A method is disclosed for recovering hydrocarbons from heavy oil and tar sand formations by a series of sequenced steps, wherein the production wells are initially steam stimulated. Thereafter, about 0.6 to about 1.2 pore volumes of steam of a relatively high steam quality are injected into the formation through the injection wells. An additional quantity of steam is then injected wherein the steam quality is decreased to a relatively low quality. Water injection and wet in situ combustion conclude the method.

    摘要翻译: 公开了一种通过一系列排序步骤从重油和焦油砂层中回收碳氢化合物的方法,其中生产井最初被蒸汽刺激。 此后,通过注入井将约0.6至约1.2孔体积的蒸汽质量较高的蒸汽注入地层。 然后注入额外量的蒸汽,其中蒸汽质量降低到相对较低的质量。 注水和湿地原位燃烧得出结论。

    Method for producing viscous hydrocarbons from discrete segments of a
subterranean layer
    4.
    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。

    Method and apparatus for gravel packing horizontal wells
    7.
    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 forming a gravel packed horizontal well
    8.
    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。

    Method of improving conformance in steam floods with steam foaming agents
    9.
    发明授权
    Method of improving conformance in steam floods with steam foaming agents 失效
    用蒸汽发泡剂改善蒸汽洪水一致性的方法

    公开(公告)号:US4540050A

    公开(公告)日:1985-09-10

    申请号:US638919

    申请日:1984-08-08

    摘要: The disclosed invention is a group of steam foaming agents for injection with steam and a non-condensable gas to decrease permeability in steam swept zones and increase oil recovery. The foaming agents have the general formula:RO(R'O).sub.n R"SO.sub.3 Mwhere R is an alkyl radical, branched or linear, or an alkylbenzene, alkyltoluene or alkylxylene group, having from about 8 to about 24 carbon atoms in the alkyl chain, R' is ethyl, propyl or a mixture of ethyl and propyl, n has an average value of about 1 to about 20, R" is ethyl, propyl, hydroxypropyl or butyl and M is an alkali metal or ammonium ion.

    摘要翻译: 所公开的发明是一组用于注入蒸汽和不可冷凝气体的蒸汽发泡剂,以减少蒸汽扫过区的渗透性并提高油回收率。 发泡剂具有以下通式:RO(R'O)nR''SO3M,其中R是烷基,支链或直链,或在烷基中具有约8至约24个碳原子的烷基苯,烷基甲苯或烷基​​二甲苯基 链,R'是乙基,丙基或乙基和丙基的混合物,n具有约1至约20的平均值,R“是乙基,丙基,羟丙基或丁基,M是碱金属或铵离子。

    Recovering hydrocarbons with a triangular horizontal well pattern
    10.
    发明授权
    Recovering hydrocarbons with a triangular horizontal well pattern 失效
    用三角形水平井模式回收碳氢化合物

    公开(公告)号:US4850429A

    公开(公告)日:1989-07-25

    申请号:US135199

    申请日:1987-12-21

    IPC分类号: E21B43/18 E21B43/30

    CPC分类号: E21B43/18 E21B43/305

    摘要: The invention is a method of recovering hydrocarbons from an underground hydrocarbon formation which comprises drilling and completing at least three substantially parallel horizontal wells to form a substantially triangular well pattern within a hydrocarbon formation. The first well is placed relatively near the top of a hydrocarbon interval and the second and third wells are placed near the bottom of the interval on each side of the first well. A recovery fluid is injected into the formation through the second and third wells and hydrocarbons and other fluids are recovered through the first well.

    摘要翻译: 本发明是从地下烃地层中回收烃的方法,其包括钻井和完成至少三个基本平行的水平井,以在烃地层内形成基本上三角形的井型。 第一井相对靠近碳氢化合物间隔的顶部放置,第二井和第三井放置在第一井的每一侧的间隔的底部附近。 回收流体通过第二和第三井注入地层,烃和其它流体通过第一井回收。