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1.发明公开
公开(公告)号：EP3164455A1
公开(公告)日：2017-05-10
申请号：EP14896862.1
申请日：2014-07-01
发明人： LIANG, Feng , REDDY, B., Raghava
IPC分类号： C08L101/12 , C08K3/04 , C08K3/36 , C08K5/14 , C08K5/16
CPC分类号： C08L9/02 , B29C39/003 , B29C39/38 , B29K2105/16 , B29K2995/004 , C08K3/04 , C08K3/22 , C08L15/005 , C08L23/12 , C08L51/06 , C08L101/00 , E21B33/1208 , C08L21/00
摘要： Compositions and methods for improving the mechanical properties of elastomers for downhole sealing applications are provided. An embodiment is a composition comprising: a base elastomer; a curative agent; and a semi-crystalline polymer. Another embodiment is a tool comprising: at least one component comprising a vulcanized elastomer, wherein the vulcanized elastomer comprises a base elastomer, a curative agent, and a semi-crystalline polymer. Another embodiment is a method comprising: blending a base elastomer, a curative agent, and a semi-crystalline polymer to form a mixture; placing the mixture in a mold; and vulcanizing the mixture.
摘要翻译： 提供了组合物和方法用于改进弹性体的用于井下密封应用的机械性能。 一个实施例是一种组合物，包括：基弹性体; 一治疗剂; 和半结晶聚合物。 另一个实施方案是一种工具，包括：至少一个组件，其包括硫化的弹性体，所述worin硫化的弹性体包括基部弹性体，固化剂，和半结晶聚合物。 另一个实施方案是一种方法，包括：共混基弹性体，固化剂，和半结晶聚合物以形成混合物; 将所述混合物在模具中; 并硫化该混合物。
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2.发明公开DEGRADABLE FLUID SEALING COMPOSITIONS HAVING AN ADJUSTABLE DEGRADATION RATE AND METHODS FOR USE THEREOF 审中-公开具有可调移去速率及其使用方法可生物降解的密封胶
公开(公告)号：EP2823014A1
公开(公告)日：2015-01-14
申请号：EP13710179.6
申请日：2013-02-27
摘要： When performing subterranean treatment operations, it can be desirable to temporarily divert or block fluid flow by forming a degradable fluid seal. Methods for forming a degradable fluid seal can comprise: providing a sealing composition comprising : a degradable polymer, and a water-soluble material comprising a first portion and a second portion of rigid particulates, each portion having a sealing time and a particulate size distribution associated therewith, the particulate size distributions of the first portion and the second portion differing from one another; determining an amount of the first portion relative to the second portion needed to produce a degradable fluid seal having a desired sealing time that is different than that of the sealing time of either the first portion or the second portion; introducing the sealing composition into a subterranean formation; and allowing the sealing composition to form a degradable fluid seal in the subterranean formation.
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3.发明公开
公开(公告)号：EP2764068A1
公开(公告)日：2014-08-13
申请号：EP12769274.7
申请日：2012-09-20
CPC分类号： C09K8/03 , C08J3/201 , C08J2367/04 , C08L101/16 , C09D167/04 , C09K8/50 , C09K8/516
摘要： The present invention relates to the use of composite material in downhole applications, and more particularly, relates to methods of making composite material comprising reinforced amorphous polylactic acid and methods of use related thereto. Some methods comprise providing an amorphous polylactic acid and a solid reinforcing material; forming a composite material by melting the amorphous polylactic acid and mixing it with the solid reinforcing material; and, using the composite material in a downhole application.
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4.发明公开METHODS OF FLUID LOSS CONTROL, DIVERSION, AND SEALING USING DEFORMABLE PARTICULATES 有权方法控制线的流体损失和密封使用的可变形颗粒
公开(公告)号：EP2748275A1
公开(公告)日：2014-07-02
申请号：EP12766785.5
申请日：2012-09-13
摘要： Method including the steps of providing a treatment fluid that comprises a base fluid and polymeric particulates wherein the polymeric particulates comprise a degradable polymer and a plasticizer and exhibit a Tg above about -15°C; introducing the treatment fluid into a subterranean formation having a temperature above about 65°C such that the particulates transform from rigid to malleable form and are able to provide fluid loss, seal the rock surfaces for fluid diversion, or plug an area along the annulus of a well bore; and, degrading the malleable particulates over time in the subterranean formation.
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公开(公告)号：EP2542642A1
公开(公告)日：2013-01-09
申请号：EP11709766.7
申请日：2011-03-07
发明人： LOVELESS, David, M. , HARRIS, Phillip, C. , SAINI, Rajesh, K. , TONMUKAYAKUL, Narongsak , LIANG, Feng , FUNKHOUSER, Gary, P. , FITZGERALD, Rocky, M. , HOLTSCLAW, Jeremy , NORMAN, Lewis, R.
摘要： The present invention relates to low environmental impact treatment fluids comprising a compliant crosslinking agent, and methods of use employing such treatment fluids to treat subterranean formations. The methods include providing a low environmental impact treatment fluid including an aqueous base fluid, a viscosifying agent, and a compliant crosslinking agent that comprises an iron ion and a non-iron crosslinking metal ion; and placing the treatment fluid in a subterranean formation. In some embodiments, the viscosifying agent may be a compliant viscosifying agent.
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6.发明授权METHODS OF FLUID LOSS CONTROL, DIVERSION, AND SEALING USING DEFORMABLE PARTICULATES 有权方法控制线的流体损失和密封使用的可变形颗粒
公开(公告)号：EP2748275B1
公开(公告)日：2016-09-28
申请号：EP12766785.5
申请日：2012-09-13
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公开(公告)号：EP2542642B1
公开(公告)日：2016-06-15
申请号：EP11709766.7
申请日：2011-03-07
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公开(公告)号：EP2900783A1
公开(公告)日：2015-08-05
申请号：EP13840586.5
申请日：2013-09-25
摘要： Methods and compositions using gel compositions in treatment fluids employed in subterranean operations. A method includes providing a degradable gel precursor as a solid or dispersion in which substantially all the water has been removed, the degradable gel precursor being formed by a combination of a monomer and a degradable crosslinking agent of formula R
1 --[A]--[R
3 ]--[B]--R
2 , wherein R
1 and R
2 may be the same or different, and includes at least one group selected from a substituted or unsubstituted ethylenically unsaturated group, /V-acryloyl,
O -acryloyl, vinyl, allyl, maleic anydride, a derivative thereof, and a combination thereof, A and B comprise optional bridging units, and R
3 comprises a degradable group or polymer, the method including placing the degradable gel precursor in an aqueous base fluid thereby forming a treatment fluid which includes a degradable gel, and placing the treatment fluid into a subterranean formation.-
公开(公告)号：EP2764202A2
公开(公告)日：2014-08-13
申请号：EP12767193.1
申请日：2012-09-21
IPC分类号： E21B43/08
摘要： The present invention relates to the use of degradable coatings suitable for use on downhole tools. In particular, the present invention relates to pliable coatings for use on downhole tools that have been designed to be able to resist flaking or breaking off of the tool in response to a physical shock. Some embodiments of the present invention provide methods of reacting lactic acid, glycolic acid, or a combination thereof in a polymerization reaction to form a degradable polymer; combining the degradable polymer and a plasticizer to form a coating composition; applying the coating composition to a downhole tool; placing the coated downhole tool into a portion of a subterranean formation; and, hydrolyzing the degradable polymer of the coating composition to release an acid and degrade the coating.
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10.发明公开IMPROVED POLYMER COMPOSITIONS FOR USE IN DOWNHOLE TOOLS AND COMPONENTS THEREOF 审中-公开改进的聚合物组合物中的IN的井具及其组件
公开(公告)号：EP2736969A1
公开(公告)日：2014-06-04
申请号：EP12733383.9
申请日：2012-06-28
IPC分类号： C08K5/00
CPC分类号： E21B41/00
摘要： Methods including providing a downhole tool or a component thereof comprising a plasticized polymer composition that comprises a polymer and a water-soluble plasticizer, wherein the plasticized polymer composition has a first deflection test value; exposing the downhole tool or the component thereof to an aqueous-based medium; allowing the water-soluble plasticizer to leach out of the downhole tool or the component thereof, wherein the plasticized polymer composition has a second deflection test value after exposure to the aqueous- based medium, and wherein the second deflection test value is less than about 10% of the first deflection test, value; and placing the downhole tool or the component thereof in a subterranean formation.
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