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公开(公告)号：US20100270017A1
公开(公告)日：2010-10-28
申请号：US12670784
申请日：2008-07-31
CPC分类号： C09K8/74 , C09K2208/26
摘要： A process that includes pumping a first wellbore fluid comprising an oxidative degradable polymer into a wellbore through a subterranean formation; pumping a second wellbore fluid comprising a pH-activated oxidative breaker into the wellbore; pumping a third wellbore fluid comprising a delayed acid source into the wellbore; and allowing the delayed acid source to acidify at least a portion of the wellbore to a pH of less than 7 so as to activate the pH-activated oxidative breaker at the lower pH and degrade the oxidative degradable polymers is disclosed.
摘要翻译： 一种方法，其包括将包含氧化性可降解聚合物的第一井筒流体通过地下地层泵入井眼; 将包含pH激活的氧化断裂器的第二井筒流体泵入井眼; 将包含延迟酸源的第三井筒流体泵送到井筒中; 并且允许延迟的酸源将至少一部分井眼酸化至小于7的pH，以便在较低pH下活化pH活化的氧化性破乳剂并降解氧化降解聚合物。
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公开(公告)号：US20100212896A1
公开(公告)日：2010-08-26
申请号：US12666011
申请日：2008-06-27
摘要： A method of gravel packing a hole in a subterranean formation having a filter cake coated on the surface thereof that includes injecting into the hole a gravel pack composition comprising gravel and a carrier fluid comprising a base fluid and at least one iminodiacetic acid or salt thereof is disclosed.
摘要翻译： 一种在地层中砾石填充具有在其表面上涂覆有滤饼的孔的方法，包括将包括砾石的砾石包装组合物和包含基础流体和至少一种亚氨基二乙酸或其盐的载体流体注入孔中， 披露
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公开(公告)号：US20080200354A1
公开(公告)日：2008-08-21
申请号：US12032879
申请日：2008-02-18
申请人： Andrew G.K. Jones , Mark Luyster , Raul Navarro
发明人： Andrew G.K. Jones , Mark Luyster , Raul Navarro
IPC分类号： C09K8/524
CPC分类号： C09K8/524 , C09K8/528 , C09K2208/26
摘要： A method of cleaning a wellbore prior to the production of oil or gas is disclosed, wherein the wellbore has been drilled with an invert emulsion drilling mud that forms an invert emulsion filter cake. The method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid includes an aqueous fluid, and imino diacetic acid or salt thereof. Optionally an acid buffering agent, and a weighting age are also included. The breaker fluid is formulated such that after a predetermined period of time and the filter cake present in the wellbore or on the wellbore face is substantially degraded. Other methods may also include drilling the wellbore with a water-based drilling mud that forms a water-based filter cake, wherein the method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid may include an aqueous fluid, and an iminodiacetic acid or a salt thereof.
摘要翻译： 公开了在生产油或气体之前清洁井眼的方法，其中已经用形成反转乳液滤饼的反转乳液钻井泥浆钻了井筒。 该方法可以包括以下步骤：将破碎剂流体循环到井眼中，其中破碎剂流体包括含水流体，和亚氨基二乙酸或其盐。 任选地，还包括酸缓冲剂和加权时代。 配制破碎剂流体，使得在预定时间段之后，存在于井眼或井眼面上的滤饼基本上降解。 其他方法还可以包括用形成水基滤饼的水基钻井泥浆钻井井，其中该方法可以包括以下步骤：将破坏剂流体循环到井筒中，其中破碎剂流体可以包括水性流体， 和亚氨基二乙酸或其盐。
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公开(公告)号：US20120000652A1
公开(公告)日：2012-01-05
申请号：US13256236
申请日：2010-03-16
IPC分类号： E21B43/02
摘要： A method of drilling with a wellbore fluid, wherein the wellbore fluid forms a filtercake on a wellbore wall, that includes pumping the wellbore fluid with an oxidative degradable polymer and an inactivated oxidant; forming a filtercake in a downhole environment by the pumping of the wellbore fluid into a well and allowing some of the fluid to filter into a subterranean rock formation to produce a filtercake comprising the oxidative degradable polymer and inactivated oxidant; and removing the filtercake formed by the wellbore fluid from the wellbore walls by exposing the filterckae with a breaker fluid comprising an aqueous fluid, and at least one iminodiacetic acid or a salt thereof is disclosed.
摘要翻译： 一种用井筒流体钻孔的方法，其中井眼流体在井眼壁上形成滤饼，其包括用氧化可降解聚合物和灭活的氧化剂泵送井筒流体; 在井下环境中通过将井筒流体泵送到井中并使一些流体过滤到地下岩层中以产生包含氧化可降解聚合物和灭活氧化剂的滤饼，从而在井下环境中形成滤饼; 并且通过用包含水性流体的破坏剂流体暴露滤芯并且将至少一种亚氨基二乙酸或其盐暴露出来，从井眼壁去除由井筒流体形成的滤饼。
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公开(公告)号：US20110028356A1
公开(公告)日：2011-02-03
申请号：US12902556
申请日：2010-10-12
IPC分类号： C09K8/00
摘要： An annular fluid or packer fluid, and methods of making the same, that includes a water-miscible solvent, a viscosifying additive, a crosslinking agent, a crosslinking inhibitor having the facility to inhibit crosslinking between the viscosifying additive and the crosslinking agent, and an initiating agent having the facility to overcome an action of the crosslinking inhibitor and to initiate crosslinking between the viscosifying additive and the crosslinking agent, is shown and described. The fluid has a thermal conductivity of no more than about 0.25 btu/(hr·ft·° F.) and a potential to substantially increase its viscosity upon sitting for a selected period of time.
摘要翻译： 环状流体或封隔器流体及其制造方法，其包括水混溶性溶剂，增粘添加剂，交联剂，具有抑制粘性添加剂与交联剂之间的交联设计的交联抑制剂，以及 示出并描述了具有克服交联抑制剂的作用并引发增粘剂和交联剂之间的交联的设备的引发剂。 该流体的热导率不超过约0.25btu /（hr·ft·°F）），并且在静置一段时间后可显着增加其粘度。
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