公开(公告)号：US20040251023A1

公开(公告)日：2004-12-16

申请号：US10863165

申请日：2004-06-08

Applicant: Weatherford/Lamb, Inc.

Inventor： Clayton Stanley Pluchek ,  Gerald Dean Pedersen ,  Richard Lee Giroux ,  Thad Joseph Scott ,  David Michael Haugen

IPC: E21B043/00

CPC classification number: E21B43/08 ,  E21B21/10 ,  E21B21/103 ,  E21B27/005 ,  E21B33/14 ,  E21B33/16 ,  E21B37/00 ,  E21B37/10 ,  E21B43/10 ,  E21B2034/005

Abstract: The present invention provides a downhole cementing apparatus run into a borehole on a tubular. The apparatus is constructed on the pipe in such a way that pressure surge during run-in is reduced by allowing fluid to enter the pipe and utilize the fluid pathway of the cement. In one aspect of the invention, an inner member is provided that filters fluid as it enters the fluid pathway. In another aspect of the invention, various methods are provided within the cementing apparatus to loosen and displace sediment in the borehole prior to cementing.

公开(公告)号：US20040244987A1

公开(公告)日：2004-12-09

申请号：US10454105

申请日：2003-06-04

Inventor： Gregory A. Crews

IPC: E21B043/00

CPC classification number: E21B43/38

Abstract: This invention relates to apparatus and methods used in the production of petroleum. The apparatus and methods maintain an amount of oil on oil well casing perforations for improved petroleum production. The apparatus for the production of petroleum includes: a pump intake tube having an opening, an oil anchor generally encircling the pump intake tube, the oil anchor having an open base and vent holes in the oil anchor above the opening of the pump intake tube, a casing generally encircling the oil anchor, and perforations in the casing that are below the opening of the pump intake tube and are above the open base of the oil anchor. The method of petroleum production includes providing a pump intake tube having an opening, providing an oil anchor generally encircling the pump intake tube, the oil anchor having an open base and locating vent holes in the oil anchor above the opening of the pump intake tube, providing a casing generally encircling the oil anchor, and locating perforations in the casing below the opening of the pump intake tube and above the open base of the oil anchor, and pumping a produced fluid comprising petroleum.

Abstract translation: 本发明涉及用于生产石油的设备和方法。 该装置和方法在油井套管穿孔上保持一定量的油，以改善石油生产。 用于生产石油的装置包括：具有开口的泵入口管，通常围绕泵进气管的油锚，具有开口底座的油锚和位于泵进气管开口上方的油锚中的通气孔， 通常环绕油锚的壳体和壳体内的在泵吸入管的开口下方并且在油锚的敞开的基部上方的穿孔。 石油生产方法包括提供具有开口的泵入口管，提供通常围绕泵入口管的油锚，所述油锚具有敞开的基部，并且在所述油锚中位于所述泵吸入管的开口上方的通气孔， 提供通常围绕所述油锚的壳体，以及将所述壳体中的穿孔定位在所述泵入口管的开口下方并位于所述油锚的敞开的基部之上，以及泵送包括石油的产生的流体。

公开(公告)号：US20040214726A1

公开(公告)日：2004-10-28

申请号：US10833986

申请日：2004-04-28

Inventor： Robin Tudor

IPC: E21B043/00

CPC classification number: E21B43/26 ,  C09K8/68 ,  C09K8/685 ,  C09K8/80

Abstract: A glycol-based well stimulation fluid and a process for recycling a glycol-based well stimulation fluid, comprising the steps of filtration and heating.

Abstract translation: 基于二醇的井刺激流体和用于再循环基于二醇的井刺激流体的方法，包括过滤和加热步骤。

公开(公告)号：US20040171499A1

公开(公告)日：2004-09-02

申请号：US10745470

申请日：2003-12-22

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： Krishna M. Ravi ,  B. Raghava Reddy

IPC: E21B043/00

CPC classification number: C09K8/42 ,  C04B16/04 ,  C04B20/0032 ,  C04B20/04 ,  C04B28/02 ,  C04B2103/0051 ,  C04B2103/0052 ,  C04B2111/00146 ,  C04B2111/503 ,  C09K8/46 ,  C09K8/473 ,  Y02W30/92 ,  Y02W30/94 ,  C04B20/1051 ,  C04B20/1033 ,  C04B14/108 ,  C04B14/20 ,  C04B14/24 ,  C04B14/301 ,  C04B18/08 ,  C04B18/082 ,  C04B18/146 ,  C04B20/0048 ,  C04B2103/10 ,  C04B2103/20 ,  C04B2103/40 ,  C04B2103/408 ,  C04B2103/46 ,  C04B2103/50 ,  C04B16/08 ,  C04B14/104 ,  C04B16/082 ,  C04B22/124 ,  C04B2103/48 ,  C04B24/2688 ,  C04B24/2641

Abstract: The present invention relates to subterranean cementing operations, and more particularly, to cement compositions comprising elastic particles and having improved mechanical properties, and methods of using such compositions in subterranean cementing operations. An example of a method of the present invention comprises the steps of: providing a cement composition comprising a base fluid, a hydraulic cement, and a portion of elastic particles; placing the cement composition in a well bore in a subterranean formation; permitting a portion of the cement composition to enter openings in a region of the subterranean formation in fluid communication with the well bore; and permitting the portion of the cement composition to seal the openings off from the well bore. Another example of a method of the present invention comprises the step of adding a portion of elastic particles to a cement composition.

Abstract translation: 本发明涉及地下固井作业，更具体地说，涉及包含弹性颗粒并具有改进的机械性能的水泥组合物，以及在地下固井操作中使用这些组合物的方法。 本发明方法的实例包括以下步骤：提供包含基础流体，水硬性水泥和一部分弹性颗粒的水泥组合物; 将水泥组合物放置在地层中的井眼中; 允许水泥组合物的一部分进入与井眼流体连通的地下地层的区域内的开口; 并且允许水泥组合物的该部分将孔与井眼密封。 本发明方法的另一个实例包括将一部分弹性颗粒添加到水泥组合物中的步骤。

公开(公告)号：US20040168572A1

公开(公告)日：2004-09-02

申请号：US10375482

申请日：2003-02-27

Applicant: Cooper Cameron Corporation

Inventor： Hans P. Hopper

IPC: B01D019/00 ,  E21B043/00

CPC classification number: E21B43/38 ,  E21B43/121

Abstract: A tubular separation unit insertable into a caisson or tube for separating liquid from an upward flowing liquid/gas multi-phase stream, and comprising: a centrifugal flow-induced liquid separator having a multi-phase gas/liquid inlet, a liquid outlet, and a gas stream outlet; a liquid transfer conduit connected to the liquid outlet of the flow separator; and a pump for pumping liquid, disposed below the separator and including a pump liquid inlet connected to the liquid transfer conduit and through which liquid separated in the separator is received, and a pumped liquid outlet through which separated liquid is, in use, caused to flow selectively.

Abstract translation: 一种管状分离装置，其可插入到用于从向上流动的液体/气体多相流中分离液体的沉箱或管中，并且包括：离心流引起的液体分离器，其具有多相气体/液体入口，液体出口和 气流出口; 连接到流动分离器的液体出口的液体输送导管; 以及用于泵送液体的泵，其设置在分离器下方并且包括连接到液体输送导管的泵液入口，并且通过其被分离的分离器中的液体被接收;以及泵送的液体出口，使用中分离的液体被引导到 有选择地流动。

公开(公告)号：US20040157749A1

公开(公告)日：2004-08-12

申请号：US10364717

申请日：2003-02-11

Inventor： John W. Ely ,  Bradley C. Wolters ,  William D. McCain

IPC: E21B043/00

CPC classification number: C09K8/575

Abstract: Method is provided for increasing the productivity of gas wells producing from reservoirs where retrograde condensation occurs around the wells. An oil-wetting surfactant is injected in a solvent to oil wet the formation for a selected distance around a well or a hydraulic fracture intersecting the well. A pre-flush liquid, such as carbon dioxide, alcohol or similar products and mixtures thereof, may be used to reduce water saturation before injection of the surfactant. The method may also be applied to increase the productivity of oil wells producing from reservoirs where breakout of solution gas occurs near the well.

Abstract translation: 提供了一种方法，用于提高由井周围发生逆行冷凝的储层产生的气井的生产率。 将油润性表面活性剂注入溶剂中以将油层围绕井或与井相交的水力裂缝沿着选定距离润湿地层。 可以使用预冲洗液体，例如二氧化碳，醇或类似产物及其混合物，以在注入表面活性剂之前降低水饱和度。 该方法还可以用于提高在井附近发生溶解气体爆裂的储层产生的油井的生产率。

公开(公告)号：US20040152604A1

公开(公告)日：2004-08-05

申请号：US10356210

申请日：2003-01-31

Inventor： Qi Qu ,  David Alleman

IPC: E21B043/00

CPC classification number: C09K8/74 ,  C09K8/601 ,  C09K8/602 ,  C09K8/76 ,  C09K2208/26 ,  C09K2208/30 ,  Y10S507/922

Abstract: A process for stimulating a formation is disclosed wherein a diverting fluid is used to divert an acid treatment package from a high permeability or damaged portion of a formation to a low permeability or undamaged portion of a formation. The fluid, which preferably forms vesicles, comprises at least one surfactant, at least one quaternary amine polyelectrolyte, water, and a non-aqueous solvent.

Abstract translation: 公开了一种用于刺激地层的方法，其中使用转向流体将酸处理包从地层的高渗透性或损坏部分转移到地层的低渗透性或未损伤部分。 优选形成囊泡的流体包含至少一种表面活性剂，至少一种季胺聚电解质，水和非水溶剂。

公开(公告)号：US20040129428A1

公开(公告)日：2004-07-08

申请号：US10738528

申请日：2003-12-16

Inventor： Terry Earl Kelley

IPC: E21B043/00

CPC classification number: E21B43/124 ,  E21B43/123 ,  E21B43/129

Abstract: This invention provides a method to efficiently remove liquidsnullhydrocarbons or waternullfrom a natural producing formation so as to reduce the resistance to gas inflow to the wellbore from the formation. The system will also serve as an efficient mechanism for producing hydrocarbon liquids by operating at a higher wellbore and near-wellbore formation pressure to maintain such liquids in a state of increased mobility due to the retained gas in solution. The system used is a downhole device containing a float-operated valve, said float being sensitive to fluid filling its interior such that it falls with liquid fill, opening a valve to the production tubing string liquids are allowed into the production tubing, while gas is produced up the tubing-casing annulus. A unique combination of artificial lift is incorporated in the tubing string, basically a plunger lift operated by one or more gas lift valves that open when a prescribed column of liquid is sensed above the valve. A venturi-type nozzle above the gas lift valve acts to disperse the gas bubbles to create a more efficient fluid slug to lift the plunger to surface.

Abstract translation: 本发明提供了一种有效地从天然生产地层中除去液体烃或水的方法，以便降低从地层中流入井筒的气体的抵抗性。 该系统还将用作通过在更高的井筒和近井筒地层压力下操作来生产碳氢化合物液体的有效机构，以将这种液体保持在由于溶液中保留的气体引起的移动性增加的状态。 所使用的系统是包含浮动阀的井下装置，所述浮子对于填充其内部的流体敏感，使得其随着液体填充而下降，向生产油管柱打开阀门，液体被允许进入生产管道，而气体是 产生管壳环。 人造升降机的独特组合被并入油管柱中，基本上是由一个或多个气举阀操作的柱塞升降器，当在阀上方检测到规定的液体柱时打开。 在提升阀上方的文丘里型喷嘴用于分散气泡，以产生更有效的流体塞，以将柱塞提升到表面。

公开(公告)号：US20040106525A1

公开(公告)日：2004-06-03

申请号：US10605687

申请日：2003-10-17

Applicant: SCHLUMBERGER TECHNOLOGY CORP.

Inventor： Dean Willberg ,  Keith Dismuke

IPC: E21B043/00

CPC classification number: C09K8/06 ,  C09K8/03 ,  C09K8/5045 ,  C09K8/506 ,  C09K8/72 ,  C09K8/74 ,  Y10S507/923 ,  Y10S507/933

Abstract: A composition and method are given for self-destructive fluid loss additives and filter cakes in wellbores and subterranean formations. The fluid loss additives and filter cakes are formed from a mixture of particulate solid acid-precursors, such as a polylactic acid or a polyglycolic acid, and particulate solid acid-reactive materials, such as magnesium oxide or calcium carbonate. In the presence of water, the solid acid-precursors hydrolyze and dissolve, generating acids that then dissolve the solid acid-reactive materials. The composition is used in oilfield treatments such as drilling, completion and stimulation where it disappears when it is no longer needed without the use of mechanical means or injection of additional fluids.

Abstract translation: 给出了在井筒和地下地层中自毁失水添加剂和滤饼的组合物和方法。 流体损失添加剂和滤饼由颗粒状固体酸前体如聚乳酸或聚乙醇酸和颗粒状固体酸反应性材料如氧化镁或碳酸钙的混合物形成。 在水的存在下，固体酸前体水解和溶解，产生酸，然后溶解固体酸反应性材料。 该组合物用于油田处理，例如钻井，完井和刺激，当不再需要机械装置或注入另外的流体时，它就不再需要。

公开(公告)号：US20040104023A1

公开(公告)日：2004-06-03

申请号：US10472130

申请日：2003-10-30

Inventor： John Stark ,  Hansjorg Wagenbach ,  Jorg Schar

IPC: E21B043/00

CPC classification number: E21B31/00 ,  E21B43/124 ,  F04F5/10 ,  F04F5/44 ,  Y10T137/2273

Abstract: The performance of a double-cone device (1) is increased, not only by moving the gap or inlet openings (22) a short distance into the exit cone (47), but also by making the conicity null3 (55) of the so-formed small diffuser less than the conicity null2 (109) of the remaining part (53) of the exit cone. Double cone units (7, 60), particularly the ones with this improved diffuser, may be used in pump installations (1, 60), like well-pumps (1), where liquids must be pumped from great depths.

Abstract translation: 增加了双锥形装置（1）的性能，不仅通过将间隙或入口开口（22）移动到出口锥体（47）中的短距离，而且通过使得圆锥形装置（1）的锥度θ3（55） 形成的小扩散器小于出口锥体的剩余部分（53）的锥度θ2（109）。 双锥形单元（7,60），特别是具有改进的扩散器的锥形单元可用于泵安装（1，60），如井泵（1），其中液体必须从大深度泵送。