公开(公告)号：US5504062A

公开(公告)日：1996-04-02

申请号：US270698

申请日：1994-07-05

申请人： Michael H. Johnson

发明人： Michael H. Johnson

IPC分类号： C09K8/08 ,  C09K8/16 ,  C09K8/50 ,  C09K8/60 ,  C09K8/66 ,  C09K8/90 ,  E21B21/00 ,  E21B43/04 ,  E21B43/267 ,  E21B43/24 ,  C09K7/02

CPC分类号： C09K8/665 ,  C09K8/08 ,  C09K8/16 ,  C09K8/50 ,  C09K8/60 ,  C09K8/90 ,  E21B21/003 ,  E21B43/04 ,  E21B43/267 ,  C09K2208/18 ,  Y10S507/906

摘要： A fluid system has been discovered using a distribution of graded calcium carbonate particle sizes, a biopolymer and a polymerized starch. The biopolymer is a non-ionic polysaccharide of the scleroglucan type. It is important that the calcium carbonate particles be distributed across a wide size range to effectively prevent filtration or fluid loss into the formation. Since the filter cake particles do not invade the well bore due to the action of the biopolymer and starch, no high pressure spike occurs during the removal of the filter cake. This high pressure spike indicates damage to the formation and well bore surface, which damage typically reduces overall permeability of the formation. The rheological properties of the fluid allow it to be used in a number of applications where protection of the original permeable formation is desirable. The applications include, but are not limited to, drilling fracturing and controlling fluid losses during completion operations, such as gravel packing or well bore workovers.

摘要翻译： 已经发现使用分级碳酸钙粒度分布，生物聚合物和聚合淀粉的流体系统。 生物聚合物是硬糖基类型的非离子多糖。 重要的是碳酸钙颗粒分布在宽的尺寸范围内以有效地防止过滤或液体流入地层。 由于滤饼颗粒由于生物聚合物和淀粉的作用而不侵入井眼，因此在除去滤饼时不会发生高压尖峰。 这种高压尖峰表示对地层和井眼表面的破坏，这种损伤通常会降低地层的总体渗透率。 流体的流变性能允许其用于需要保护原始可渗透地层的许多应用中。 这些应用包括但不限于在完井操作期间的钻井压裂和控制流体损失，例如砾石填充或井眼工作。

公开(公告)号：US5441929A

公开(公告)日：1995-08-15

申请号：US264818

申请日：1994-06-23

申请人： Michael L. Walker

发明人： Michael L. Walker

IPC分类号： C09K8/54 ,  C09K8/74 ,  C23F11/04 ,  C09K7/02 ,  C09K7/04 ,  E21B43/27

CPC分类号： C23F11/04 ,  C09K8/54 ,  C09K8/74 ,  Y10S166/902 ,  Y10S507/934 ,  Y10S507/939

摘要： A hydrochloric acid acidizing composition for treating a subterranean formation penetrated by a well bore to increase the production of desired materials (e.g., hydrocarbons) therefrom that includes a corrosion inhibitor for protecting both ferrous based alloy surfaces (e.g., low alloy steel surfaces) and titanium based alloy surfaces associated with the treatment from corrosion by the acid. The corrosion inhibitor includes an effective amount of a first inhibitor component for inhibiting corrosion of ferrous based alloys, the first inhibitor component including at least one chemical reducing compound, and an effective amount of a second inhibitor component for inhibiting corrosion of titanium based alloys, the second inhibitor component including at least one source of molybdate ions such as sodium molybdate. A method of treating a subterranean formation penetrated by a well bore to increase the production of desired materials therefrom is also provided.

摘要翻译： 一种盐酸酸化组合物，用于处理由井眼渗透的地层，以增加其中所需材料（例如烃）的生产，其包括用于保护铁基合金表面（例如低合金钢表面）和钛 与由酸腐蚀处理相关的基础合金表面。 腐蚀抑制剂包括有效量的用于抑制铁基合金腐蚀的第一抑制剂组分，第一抑制剂组分包括至少一种化学还原化合物和有效量的用于抑制钛基合金腐蚀的第二抑制剂组分， 第二抑制剂组分，包括至少一种钼酸根离子源，例如钼酸钠。 还提供了一种处理由井眼穿透的地层以增加所需材料的生产的方法。

公开(公告)号：US5403822A

公开(公告)日：1995-04-04

申请号：US68563

申请日：1993-05-27

申请人： Heinz Mueller ,  Claus-Peter Herold ,  Stephan von Tapavicza ,  Michael Neuss ,  Wolfgang Zoellner ,  Frank Burbach

发明人： Heinz Mueller ,  Claus-Peter Herold ,  Stephan von Tapavicza ,  Michael Neuss ,  Wolfgang Zoellner ,  Frank Burbach

IPC分类号： C09K8/32 ,  C09K20060101 ,  C09K8/34 ,  C09K7/02 ,  C09K7/06

CPC分类号： C09K8/34

摘要： The invention describes the use of selected esters, fluid at room temperature and with flash points above 80.degree. C., from monocarboxylic acids of synthetic and/or natural origin with 6 to 11 carbon atoms and mono- and/or polyfunctional alcohols as the oil phase or a component of the oil phase of invert drilling muds, which are suitable for environment-friendly development of petroleum and natural gas deposits and in a continuous oil phase contain a dispersed aqueous phase together with emulsifiers, weighting agents, fluid-loss additives and preferably further conventional additives. In a further embodiment the invention relates to invert-drilling fluids of the types mentioned, which are characterized in that the oil phase contains esters of monocarboxylic acids of synthetic and/or natural origin with 6 to 11 carbon atoms and with mono- and/or polyfunctional alcohols preferably in admixture with other components from the class of ecologically acceptable compounds.

摘要翻译： 本发明描述了在室温下和闪点高于80℃的选择的酯，来自合成和/或天然来源的具有6至11个碳原子的一元羧酸和单和/或多官能醇作为油的用途 相位或反相钻井泥浆油相的组分，适用于石油和天然气沉积物的环境友好型开发，连续油相中含有分散的水相以及乳化剂，增重剂，流体损失添加剂和 优选进一步的常规添加剂。 在另一个实施方案中，本发明涉及所述类型的反向钻井液，其特征在于油相含有合成和/或天然来源的具有6至11个碳原子的一元羧酸酯和单 - 和/或 多官能醇优选与来自生态可接受的化合物类的其它组分混合。

公开(公告)号：US5380706A

公开(公告)日：1995-01-10

申请号：US38582

申请日：1993-03-26

申请人： Ronald E. Himes ,  Patty L. Totten ,  Edward E. Vinson

发明人： Ronald E. Himes ,  Patty L. Totten ,  Edward E. Vinson

IPC分类号： C09K8/22 ,  C09K8/24 ,  C09K8/60 ,  C09K7/02

CPC分类号： C09K8/24 ,  C09K8/22 ,  C09K8/607 ,  C09K2208/12

摘要： Improved well drilling fluids and methods which prevent damage to water sensitive formations while drilling are provided. The drilling fluids include a formation stabilizing compound which contains an organic quaternary ammonium cation and an inorganic, organic or combination anion.

摘要翻译： 提供改进的钻井液和防止钻井时对水敏感地层造成损害的方法。 钻井液包括含有有机季铵阳离子和无机，有机或组合阴离子的地层稳定化合物。

公开(公告)号：US5283235A

公开(公告)日：1994-02-01

申请号：US853064

申请日：1992-03-17

申请人： James H. Bush ,  Richard W. Jahnke ,  Lawrence J. Kocurek

发明人： James H. Bush ,  Richard W. Jahnke ,  Lawrence J. Kocurek

IPC分类号： C09K8/28 ,  C09K8/36 ,  C09K7/02

CPC分类号： C09K8/36 ,  C09K8/28

摘要： This invention relates to a composition comprising a mixture of a brine and a liquid hydrocarbon, and (A) a viscosity increasing amount of at least one ester of a carboxy-containing interpolymer or salt thereof wherein the interpolymer is prepared by polymerizing an olefin selected from the group consisting of alpha-olefins and vinyl aromatic monomers with at least one alpha, beta-unsaturated carboxylic acylating agent, and provided that when the olefin is vinyl toluene, then the alpha, beta-unsaturated carboxylic acylating agent is an alpha, beta-unsaturated dicarboxylic acylating agent. The compositions of the present invention are useful as drilling fluids as well as completion fluids. The esters of the carboxy-containing interpolymer or salts thereof provide beneficial viscosity, formation stabilization, emulsification and rheology properties to the fluids.

摘要翻译： 本发明涉及包含盐水和液体烃的混合物的组合物，和（A）粘度增加量的至少一种含羧基的互聚物或其盐的酯，其中互聚物是通过将选自 由具有至少一种α，β-不饱和羧酸酰化剂的α-烯烃和乙烯基芳族单体组成的组，并且当烯烃为乙烯基甲苯时，α，β-不饱和羧酸酰化剂为α，β-不饱和羧酸酰化剂， 不饱和二羧酸酰化剂。 本发明的组合物可用作钻井液和完井液。 含羧基的互聚物或其盐的酯为流体提供有益的粘度，形成稳定性，乳化和流变性质。

公开(公告)号：US5260269A

公开(公告)日：1993-11-09

申请号：US671626

申请日：1991-03-19

申请人： Arthur H. Hale ,  George C. Blytas

发明人： Arthur H. Hale ,  George C. Blytas

IPC分类号： C09K8/22 ,  C09K7/02

CPC分类号： C09K8/22

摘要： An aqueous base drilling fluid additive composed of salt and lime or gypsum, and including an acyclic polyol and/or cyclicetherpolyol and salt.

摘要翻译： 由盐和石灰或石膏组成的水性基础钻井液添加剂，包括无环多元醇和/或环状多元醇和盐。

公开(公告)号：US5254531A

公开(公告)日：1993-10-19

申请号：US825436

申请日：1992-01-21

申请人： Heinz Mueller ,  Claus-Peter Herold ,  Stephan von Tapavicza

发明人： Heinz Mueller ,  Claus-Peter Herold ,  Stephan von Tapavicza

IPC分类号： C09K8/36 ,  C09K7/02 ,  C09K7/06

CPC分类号： C09K8/36

摘要： In a first embodiment, the invention relates to the use of basic amine compounds of pronounced oleophilic character and at most limited solubility in water, which are capable of forming salts with carboxylic acids, as an additive for w/o invert drilling muds which contain in the continuous oil phase ester oils and, together with the disperse aqueous phase, emulsifiers, weighting agents, fluid loss additives and, if desired, other additives for protecting the drilling muds against unwanted thickening in use or for improving their flowability. In another embodiment, the invention relates to w/o invert drilling muds which are suitable for the improved offshore development of oil and gas sources and which are characterized by the presence of basic amine compounds of pronounced oleophilic character which are capable of forming salts with carboxylic acids.

摘要翻译： 在第一个实施方案中，本发明涉及使用具有显着亲油性的碱性胺化合物，并且在水中具有最大限度的溶解度，其能够与羧酸形成盐，作为用于w / o倒置钻井泥浆的添加剂，其含有 连续油相酯油，以及分散水相，乳化剂，增重剂，流体损失添加剂，以及如果需要的话，用于保护钻井泥浆免受使用中不利的增稠或改善其流动性的其它添加剂。 在另一个实施方案中，本发明涉及不适用于改进油气源近海开发的钻井泥浆，其特征在于存在显着亲油性的碱性胺化合物，其能够与羧酸形成盐 酸。

公开(公告)号：US4822500A

公开(公告)日：1989-04-18

申请号：US161765

申请日：1988-02-29

申请人： James W. Dobson, Jr. ,  Alan T. Mondshine ,  Thomas C. Mondshine

发明人： James W. Dobson, Jr. ,  Alan T. Mondshine ,  Thomas C. Mondshine

IPC分类号： C09K8/08 ,  C09K8/90 ,  C09K7/02 ,  E21B43/00

CPC分类号： C09K8/90 ,  C09K8/08 ,  C09K2208/18 ,  Y10S507/903 ,  Y10S507/925

摘要： Disclosed are well working and treating fluids comprising a saturated aqueous saline solution, a particulate water soluble salt which is insoluble in the saturated saline solution, xanthomonas gum, and an epichlorohydrin crosslinked hydroxypropyl starch derivative wherein the xanthomonas gum and the epichlorohydrin crosslinked hydroxypropyl starch derivative interact to synergistically enhance the suspension characteristics of the fluid and to decrease the fluid loss of the fluid.Also disclosed is an additive composition for enhancing the suspension characteristics and reducing the fluid loss of saturated brine based well treating fluids comprising specified proportions of xanthomonas gum and epichlorohydrin crosslinked hydroxypropyl starch.

公开(公告)号：US4758357A

公开(公告)日：1988-07-19

申请号：US918838

申请日：1986-10-14

申请人： Michael H. Hoff

发明人： Michael H. Hoff

IPC分类号： C08L1/28 ,  C09K8/10 ,  C09K8/90 ,  C09K7/02 ,  E21B43/00

CPC分类号： C09K8/90 ,  C08L1/284 ,  C09K8/10 ,  Y10S507/925

摘要： A thickening composition for use in viscosifying aqueous mediums, particularly heavy brines, comprising hydroxyethyl cellulose, 2-pyrrolidone and a mono alkyl ether of ethylene glycol which is water soluble and exerts no appreciable swelling effect on the hydroxyethyl cellulose, the weight ratio of hydroxyethyl cellulose to 2-pyrrolidone being less than about 2.6:1.

摘要翻译： 用于增稠水性介质，特别是重盐水的增稠组合物，包括羟乙基纤维素，2-吡咯烷酮和乙二醇的单烷基醚，其水溶性并且对羟乙基纤维素没有明显的溶胀作用，羟乙基纤维素的重量比 至2-吡咯烷酮小于约2.6:1。

公开(公告)号：US4738788A

公开(公告)日：1988-04-19

申请号：US862694

申请日：1986-05-13

申请人： Jacques Aurenge

发明人： Jacques Aurenge

IPC分类号： C09K8/12 ,  C09K8/24 ,  C09K7/02

CPC分类号： C09K8/24

摘要： Aqueous drilling muds which are rheologically stable, non-toxic and adopted for use at high temperatures, are comprised of a viscosity modifying material, e.g., a conventional clay, and a copolymeric dispersant therefor, said copolymeric dispersant comprising the water-soluble, low molecular weight copolymerizate of from about 75 to 99 molar % of acrylic or methacrylic acid, or admixture thereof, with from about 1 to 25 molar % of a water-soluble salt of allyl or methallylsulfonic acid, or admixture thereof.

摘要翻译： 具有流变学稳定性，无毒性并在高温下使用的水泥钻井泥浆由粘度调节材料，例如常规粘土及其共聚分散剂组成，所述共聚分散剂包含水溶性低分子量 约75至99摩尔％的丙烯酸或甲基丙烯酸或其混合物与约1至25摩尔％的烯丙基或甲代烯丙基磺酸的水溶性盐或其混合物的重量共聚物。