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    Shale hydration inhibition agent and method of use
    61.
    发明申请
    Shale hydration inhibition agent and method of use 失效

    公开(公告)号：US20060073982A1

    公开(公告)日：2006-04-06

    申请号：US10958635

    申请日：2004-10-05

    Applicant: Arvind Patel ,  Emanuel Stamatakis

    Inventor： Arvind Patel ,  Emanuel Stamatakis

    IPC: C09K8/04 ,  E21B43/00

    CPC classification number: C09K8/22 ,  C09K8/20 ,  C09K8/24 ,  C09K8/68 ,  C09K2208/12

    Abstract: A water-base fluid for use in drilling, cementing, workover, fracturing and abandonment of subterranean wells through a formation containing shale which swells in the presence of water. In one illustrative embodiment, the drilling fluid is composed of an aqueous based continuous phase, a weighting agent, and a shale hydration inhibition agent. The shale hydration inhibition agent should have the general formula: in which R and R′ independently selected from hydrogen, methyl, ethyl or propyl, and X has a value from 1 to 6. The shale hydration inhibition agent is present in sufficient concentration to substantially reduce the swelling of shale drilling cuttings upon contact with the drilling fluid. The drilling fluid may be formulated to include a wide variety of components of aqueous based drilling fluids, such as weighting agents, fluid loss control agents, suspending agents, viscosifying agents, rheology control agents, as well as other compounds and materials known to one of skill in the art. The fluids may also be used in fracturing and the disposal by reinjection of drilling cutting into a selected subterranean disposal formation.

    UNDER-NEUTRALIZED ALKYLXYLENE SULFONIC ACID COMPOSITION FOR ENHANCED OIL RECOVERY PROCESSES
    62.
    发明申请
    UNDER-NEUTRALIZED ALKYLXYLENE SULFONIC ACID COMPOSITION FOR ENHANCED OIL RECOVERY PROCESSES 失效
    用于增强油回收过程的中和中性亚烷基亚磺酸组合物

    公开(公告)号：US20060014649A1

    公开(公告)日：2006-01-19

    申请号：US10893045

    申请日：2004-07-15

    Applicant: Curt Campbell ,  Gilles Sinquin

    Inventor： Curt Campbell ,  Gilles Sinquin

    IPC: C09K8/04 ,  C07C309/00 ,  E21B43/16 ,  E21B43/00

    CPC classification number: C09K8/584

    Abstract: The present invention is directed to an under-neutralized alkylxylene sulfonic acid composition for enhanced oil recovery processes. The present invention is also directed to a method for enhancing the recovery of oil from a subterranean reservoir which method employs the under-neutralized alkylxylene sulfonic acid compositions of the present invention. The under-neutralized alkylxylene sulfonic acid compositions are employed in an aqueous media. The method optionally employs suitable co-surfactants, such as alcohols, alcohol ethers, polyalkylene glycols, poly(oxyalkylene)glycols and/or poly(oxyalkylene)glycol ethers.

    Abstract translation: 本发明涉及用于增强油回收方法的中和过的烷基二甲苯磺酸组合物。 本发明还涉及一种用于增强从地下储层中回收油的方法，该方法采用本发明的过度中和的烷基二甲苯磺酸组合物。 未中和的烷基二甲苯磺酸组合物用于水性介质中。 该方法任选地使用合适的辅助表面活性剂，例如醇，醇醚，聚亚烷基二醇，聚（氧化烯）二醇和/或聚（氧化烯）二醇醚。

    Drilling fluids
    63.
    发明申请
    Drilling fluids 有权
    钻井液

    公开(公告)号：US20050199428A1

    公开(公告)日：2005-09-15

    申请号：US10851657

    申请日：2004-05-24

    Applicant: Jeanette Dixon

    Inventor： Jeanette Dixon

    IPC: C09K8/04 ,  E21B21/00

    CPC classification number: C09K8/04 ,  C09K8/035 ,  C10M173/02 ,  C10M2209/103 ,  C10M2209/104 ,  C10M2223/04 ,  C10M2225/04 ,  C10N2220/021 ,  C10N2230/06

    Abstract: This invention relates to drilling fluids, to drilling lubricants for such drilling fluids and to methods of drilling wells, particularly oil and/or gas wells using such drilling fluids. In particular, the invention relates to the inclusion of lubricants which afford lubrication in drilling fluids in which the lubricant compatibility and/or performance may be adversely affected by other components of the drilling fluid, particularly divalent cations such as calcium, formate salts or highly alkaline components such as alkali silicate.

    Abstract translation: 本发明涉及钻井液，钻井液的钻井润滑剂以及使用这种钻井液钻井，特别是油井和/或气井的方法。 特别地，本发明涉及包括在钻井液中提供润滑的润滑剂，其中润滑剂相容性和/或性能可能受钻井液的其它组分特别是二价阳离子如钙，甲酸盐或高碱性的不利影响 组分如碱金属硅酸盐。

    Phospholipid lubricating agents in aqueous based drilling fluids
    65.
    发明申请
    Phospholipid lubricating agents in aqueous based drilling fluids 有权
    磷脂润滑剂在水性钻井液中的应用

    公开(公告)号：US20050054540A1

    公开(公告)日：2005-03-10

    申请号：US10937127

    申请日：2004-09-09

    Applicant: Arvind Patel ,  Eric Davis ,  Steven Young ,  Emanuel Stamatakis

    Inventor： Arvind Patel ,  Eric Davis ,  Steven Young ,  Emanuel Stamatakis

    IPC: C09K8/04 ,  E21B20060101 ,  C09K7/02

    CPC classification number: C09K8/18 ,  C09K8/06 ,  C09K2208/34 ,  C10M2223/10

    Abstract: A method of improving the lubricity of an aqueous based drilling fluid composed of an aqueous base fluid, and a weighting agent. The method involves the addition of an effective amount of a phospholipid to substantially reduce the coefficient of friction when compared to the fluid absent the phospholipids. Preferably the phospholipids have the structure: in which R and R′ are C6 to C25 hydrocarbon groups; and A is an anion to counter the cationic charge.

    Abstract translation: 一种提高由含水基础液体和加重剂组成的含水基钻井液的润滑性的方法。 与没有磷脂的流体相比，该方法包括加入有效量的磷脂以显着降低摩擦系数。 优选地，磷脂具有以下结构：其中R和R'是C 6至C 25烃基; 而A是抵抗阳离子电荷的阴离子。

    Method of oil/gas well stimulation
    66.
    发明授权
    Method of oil/gas well stimulation 失效
    油气井刺激方法

    公开(公告)号：US06849582B2

    公开(公告)日：2005-02-01

    申请号：US10293616

    申请日：2002-11-14

    Applicant: Neil Grainger ,  Terence Cox ,  Edward George Scovell

    Inventor： Neil Grainger ,  Terence Cox ,  Edward George Scovell

    IPC: E21B43/27 ,  C09K8/04 ,  C09K8/58 ,  C09K8/64 ,  C09K8/72 ,  C09K8/86 ,  E21B43/26 ,  C09K3/00

    CPC classification number: C09K8/86 ,  C09K8/64 ,  C09K8/72 ,  Y10S507/922 ,  Y10S507/923 ,  Y10S507/933

    Abstract: Stimulation, particularly fracturing or acidising, of hydrocarbon wells having bores leading to hydrocarbon bearing uses a fluid including a continuous phase of or including a compound of the formula (1): (R2)p—Ph—(CH2)m—COO—(AO)n—R1 where R1, AO, n, m, Ph, R2 and p having defined meanings and particularly where the esters are alkyl or alkenyl benzoate esters. These esters are beneficial by having a range of viscosities, especially extending to low viscosities, and attractive toxicological and environmental profiles for use in well stimulation.

    Abstract translation: 具有导致烃承载的孔的烃井的刺激，特别是压裂或酸化使用包括式（1）化合物的连续相或包含式（1）的化合物的流体：（R 2）p-Ph-（CH 2）m - COO-（AO）nR 1其中R 1，AO，n，m，Ph，R 2和p具有确定的含义，特别是其中酯是烷基或链烯基苯甲酸酯。 这些酯通过具有一定范围的粘度，特别是延伸到低粘度以及用于井刺激的有吸引力的毒理学和环境特征是有益的。

    Drilling and cementing through shallow waterflows
    67.
    发明授权
    Drilling and cementing through shallow waterflows 有权
    通过浅水流钻井和固井

    公开(公告)号：US6152227A

    公开(公告)日：2000-11-28

    申请号：US176180

    申请日：1998-10-21

    Applicant: Jimmie B. Lawson ,  Donald L. Whitfill

    Inventor： Jimmie B. Lawson ,  Donald L. Whitfill

    IPC: C04B28/24 ,  C09K8/04 ,  C09K8/20 ,  C09K8/46 ,  E21B33/13 ,  C09K7/00

    CPC classification number: C04B28/24 ,  C09K8/04 ,  C09K8/206 ,  C09K8/46 ,  E21B33/13 ,  Y02W30/94 ,  Y02W30/97

    Abstract: Drilling fluids are designed for drilling and cementing through shallow water flows and unconsolidated formations. Such drilling fluids utilize hollow microspheres to increase the volume of the drilling fluid without adding too much weight to the drilling fluid. The drilling fluid is also designed to employ an admixture of silicate, high surface area fibrous material, deformable graphite particles, and an activatable cementitious material to stabilize unconsolidated formations and form a tough filter cake that will bond with the cement casing.

    Abstract translation: 钻井液设计用于通过浅水流和未固结地层钻井和固井。 这种钻井液利用中空微球体来增加钻井液体积，而不会增加钻井液的重量。 钻井液还被设计成使用硅酸盐，高表面积纤维材料，可变形石墨颗粒和可活化的水泥质材料的混合物，以稳定未固结的结构并形成将与水泥套管结合的坚韧的滤饼。

    Water-based drilling fluid for use in shale formations
    70.
    发明授权
    Water-based drilling fluid for use in shale formations 失效
    用于页岩地层的水基钻井液

    公开(公告)号：US5925598A

    公开(公告)日：1999-07-20

    申请号：US742521

    申请日：1996-11-01

    Applicant: Fersheed K. Mody ,  James V. Fisk, Jr.

    Inventor： Fersheed K. Mody ,  James V. Fisk, Jr.

    IPC: C09K8/04 ,  C09K8/60 ,  C09K8/84 ,  C09K7/02

    CPC classification number: C09K8/845 ,  C09K8/04 ,  C09K8/607

    Abstract: A water-based drilling fluid for use in shale formations having a given average pore size has solutes dissolved therein sized so as to allow the pores of the shale formations to at least partially restrict the solutes. For purposes of enhancing the restriction of the solutes by the shale pores, the dissolved solutes may have different radii. Additional solutes, preferably lower molecular weight salts, are dissolved in the drilling fluid to lower the activity of the water in the water-based drilling fluid.The same combination of additives, a first additive of dissolved molecular solutes sized to at least partially block a shale pore space and a second additive of dissolved molecular solutes selected to lower the water activity, are combined in a water-based carrier fluid and used in earth boreholes surrounded by shale formations as either a spotting fluid, or as a lubricant, or as a shale formation strengthener or as a completion fluid.

    Abstract translation: 用于具有给定平均孔径的页岩地层的水基钻井液具有溶解在其中的溶质，其尺寸允许页岩层的孔隙至少部分地限制溶质。 为了增加页岩孔的溶质限制，溶解的溶质可能具有不同的半径。 另外的溶质，优选较低分子量的盐溶解在钻井液中，以降低水基钻井液中的水的活性。 添加剂的相同组合，溶解的分子溶质的大小至少部分阻挡页岩孔隙的第一添加剂和被选择降低水活度的溶解的分子溶质的第二添加剂组合在水基载体流体中并用于 由页岩地层包围的地球钻孔作为点状流体，或作为润滑剂，或作为页岩形成强化剂或作为完井液。

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