CN103694976A - 一种酸化压裂用纤维暂堵剂 - Google Patents

一种酸化压裂用纤维暂堵剂 Download PDF

Info

Publication number
CN103694976A
CN103694976A CN201310698481.3A CN201310698481A CN103694976A CN 103694976 A CN103694976 A CN 103694976A CN 201310698481 A CN201310698481 A CN 201310698481A CN 103694976 A CN103694976 A CN 103694976A
Authority
CN
China
Prior art keywords
fiber
temporary plugging
plugging agent
transport fluid
temporarily
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201310698481.3A
Other languages
English (en)
Other versions
CN103694976B (zh
Inventor
张绍彬
康毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Learn Practices Technology Co ltd
Original Assignee
Sichuan Brand Petroleum Science & Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Brand Petroleum Science & Technology Co Ltd filed Critical Sichuan Brand Petroleum Science & Technology Co Ltd
Priority to CN201310698481.3A priority Critical patent/CN103694976B/zh
Publication of CN103694976A publication Critical patent/CN103694976A/zh
Application granted granted Critical
Publication of CN103694976B publication Critical patent/CN103694976B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/50Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504Compositions based on water or polar solvents
    • C09K8/506Compositions based on water or polar solvents containing organic compounds
    • C09K8/508Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/514Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/50Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504Compositions based on water or polar solvents
    • C09K8/5045Compositions based on water or polar solvents containing inorganic compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/50Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504Compositions based on water or polar solvents
    • C09K8/506Compositions based on water or polar solvents containing organic compounds
    • C09K8/508Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/5083Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/50Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504Compositions based on water or polar solvents
    • C09K8/506Compositions based on water or polar solvents containing organic compounds
    • C09K8/508Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/5086Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2208/00Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/08Fiber-containing well treatment fluids

Abstract

本发明公开了一种酸化压裂用纤维暂堵剂,它由下述重量份的携带液和暂堵纤维组成:携带液90~95,暂堵纤维0.8~2;所述携带液由以下重量份的原料组成:胍胶0.2~0.6,杀菌剂0.1~0.5,粘稳剂0.3~0.7,助排剂0.3~0.8,碳酸钠0.1~0.5;本发明在携带液中加入了在一定条件下可溶解的暂堵纤维,由于可溶性纤维可以形成高密度的空间网络结构,这种结构具备较强的封堵能力,从而极大的提高了暂堵层的强度;本发明的酸化压裂用纤维暂堵剂具有封堵效果好、压裂、酸化后容易自动解堵、对储层的伤害小的优点,显著提高了施工成功率。

Description

一种酸化压裂用纤维暂堵剂
技术领域
本发明属于油田化学技术领域,具体涉及一种酸化压裂用纤维暂堵剂。
背景技术
暂堵压裂、酸化技术是采用暂堵剂在高渗透层前形成滤饼或加大高渗透层流动阻力,从而使工作液分流进入低渗透层。其通常做法是将不同粒径的固体颗粒,采用携带液配制成稳定的悬浊液,做为前置暂堵剂,在酸化施工前,将其泵入地层中,根据流动阻力最小原理,前置暂堵剂将优先进入流动阻力较小的高渗透层或裂缝,随着暂堵剂的不断打入,由于暂堵剂粒径分布不同,在大孔道及裂缝中形成屏蔽桥堵,最终形成厚度不一的封堵层,使地层的渗透率值趋于均匀统一,进而使后续注入的工作液不再大流量进入不需处理的高渗透油层,使低渗透油层得到有效改造。特别对于异常高压超深气藏,其地层非均质性极强,小层多且薄,无法采用机械分层酸化,常规化学暂堵剂耐温性能较差,其应用受到严重限制,并且极强的非均质性使酸液无法到达低渗透层,因而无法动用低渗透层的储量,采用暂堵压裂、酸化技术很适合开发此类储层。
随着暂堵压裂、酸化技术的发展,在该项技术中应用了可变形粒子作填充粒子。可变形粒子常用的有:油溶性树脂、石蜡和沥青、水溶性树脂、水溶性无机材料等。这类可变形粒子的作用效果与所需封堵地层的温度是密切相关的。可变形粒子软化点左右,封堵效果最好,当温度与产品的软化点差距较大时,这种粒子的变形封堵效果就难体现出来。并且,这类粒子具有亲油性,在钻井液中不易分散,浮于钻井液表面,经过高温软化返出地面降温后易聚结,造成施工的复杂。另外,近些年国内也进行了成膜钻井液技术的研究与应用,但这些成膜剂一般都是水溶性、非油溶物质,进入底层后通过对孔壁的吸附和相互聚集成膜堵塞孔道,虽然通过射孔和返排能够接触大部分堵塞,但也会对地层造成一定的损害。因此,急需开发一种封堵效果好、压裂、酸化后容易自动解堵,对储层造成二次伤害小的暂堵剂。
发明内容
本发明的目的在于克服现有技术的缺点,提供一种酸化压裂用纤维暂堵剂,该暂堵剂具有封堵效果好、压裂、酸化后容易自动解堵、对储层的伤害小的优点,显著提高了施工成功率。
本发明的目的通过以下技术方案来实现:一种酸化压裂用纤维暂堵剂,它由下述重量份的原料组成:
携带液    90~95,      暂堵纤维    0.8~2;
所述暂堵纤维满足以下要求:
A.纤维长度:3~15mm,暂堵纤维为3种长度的组合,且3~5mm占10~35%,6~10mm占40~60%,11~15mm占15~30%;
B.纤维抗拉强度:20~800MPa;
C.纤维直径:10~100μm;
D.纤维溶解性能:在50℃以上的水溶液中可溶,溶解时间大于30min,且溶解率大于95%;或者在50℃以上温度下,溶于5~20%的盐酸,溶解时间为大于30min,且溶解率大于95%。
所述纤维为聚乙烯醇纤维、改性聚酯纤维、聚氨酯纤维的一种或多种;
所述携带液由以下重量份的原料组成:
胍胶      0.2~0.6,      杀菌剂    0.1~0.5,
粘稳剂    0.3~0.7,      助排剂    0.3~0.8,
碳酸钠    0.1~0.5。
本发明具有以下优点:本发明在携带液中加入了在一定条件下可溶解的暂堵纤维,由于可溶性纤维可以形成高密度的空间网络结构,这种结构具备较强的封堵能力,从而极大的提高了暂堵层的强度;本发明的酸化压裂用纤维暂堵剂具有封堵效果好、压裂、酸化后容易自动解堵、对储层的伤害小的优点,显著提高了施工成功率。
具体实施方式
下面结合实施例对本发明做进一步的描述,本发明的保护范围不局限于以下所述。
实施例1:一种酸化压裂用纤维暂堵剂,它由下述重量份的携带液和暂堵纤维组成:携带液90,暂堵纤维0.8;所述携带液由以下重量份的原料组成:胍胶0.2,杀菌剂0.1,粘稳剂0.3,助排剂0.3,碳酸钠0.1;
所述暂堵纤维为聚乙烯醇纤维,且满足以下要求:
A.纤维长度:3mm占10%,6mm占60%,11mm占40%;
B.纤维抗拉强度:20MPa;
C.纤维直径:10μm;
D.纤维溶解性能:在50℃以上的水溶液中可溶,溶解时间大于30min,且溶解率大于95%。
实施例2:一种酸化压裂用纤维暂堵剂,它由下述重量份的携带液和暂堵纤维组成:携带液95,暂堵纤维2;所述携带液由以下重量份的原料组成:胍胶0.6,杀菌剂0.5,粘稳剂0.7,助排剂0.8,碳酸钠0.5;
所述暂堵纤维为改性聚酯纤维和聚氨酯纤维,重量比为3:1,且满足以下要求:
A.纤维长度:5mm占35%,10mm占40%,15mm占25%;
B.纤维抗拉强度:800MPa;
C.纤维直径:100μm;
D.纤维溶解性能:在50℃以上温度下,溶于20%的盐酸,溶解时间为大于30min,且溶解率大于95%。
实施例3:一种酸化压裂用纤维暂堵剂,它由下述重量份的携带液和暂堵纤维组成:携带液92,暂堵纤维1;所述携带液由以下重量份的原料组成:胍胶0.4,杀菌剂0.3,粘稳剂0.4,助排剂0.4,碳酸钠0.3;
所述暂堵纤维为聚乙烯醇纤维、改性聚酯纤维和聚氨酯纤维,重量比为1:2:1,且满足以下要求:
A.纤维长度:4mm占30%,7mm占55%,12mm占15%;
B.纤维抗拉强度:100MPa;
C.纤维直径:30μm;
D.纤维溶解性能:在50℃以上的水溶液中可溶,溶解时间大于30min,且溶解率大于95%。
实施例4:一种酸化压裂用纤维暂堵剂,它由下述重量份的携带液和暂堵纤维组成:
携带液93,暂堵纤维1.2;所述携带液由以下重量份的原料组成:胍胶0.5,杀菌剂0.3,粘稳剂0.4,助排剂0.6,碳酸钠0.4;
所述暂堵纤维为改性聚酯纤维,且满足以下要求:
A.纤维长度:3~15mm,暂堵纤维为3种长度的组合,且3mm占18%,8mm占52%,13mm占30%;
B.纤维抗拉强度:400MPa;
C.纤维直径:50μm;
D.纤维溶解性能:在50℃以上温度下,溶于18%的盐酸,溶解时间大于30min,且溶解率大于95%。
实施例5:一种酸化压裂用纤维暂堵剂,它由下述重量份的携带液和暂堵纤维组成:携带液95,暂堵纤维1.8;所述携带液由以下重量份的原料组成:胍胶0.6,杀菌剂0.4,粘稳剂0.6,助排剂0.7,碳酸钠0.4;
所述暂堵纤维为改性聚酯纤维和聚氨酯纤维,重量比为2:5,且满足以下要求:
A.纤维长度:3mm占25%,9mm占55%,14mm占20%;
B.纤维抗拉强度:600MPa;
C.纤维直径:80μm;
D.纤维溶解性能:在50℃以上的水溶液中可溶,溶解时间大于30min,且溶解率大于95%。
实施例6:酸化压裂用纤维暂堵剂性能测试
1.配制暂堵剂
(1)普通颗粒性暂堵剂:聚乙烯醇颗粒
(2)配制酸化压裂用纤维暂堵剂
试验用酸化压裂用纤维暂堵剂,它由下述重量份的携带液和暂堵纤维组成:携带液92,暂堵纤维2;所述携带液由以下重量份的原料组成:胍胶0.4,杀菌剂0.3,粘稳剂0.5,助排剂0.5,碳酸钠0.3;
所述暂堵纤维为聚乙烯醇纤维,且满足以下要求:
A.纤维长度:具体长度及分布见表1;
B.纤维抗拉强度:500MPa;
C.纤维直径:50μm;
D.纤维溶解性能:在50℃以上温度下,溶于5%的盐酸,溶解时间大于30min,且溶解率大于95%。
表1.纤维的长度及分布情况
纤维长度(mm) 3 6 9 12
百分比(%) 15 40 25 20
2.封堵性能测试
采用人造填充岩心的方法,通过使用岩心流动试验仪测定可溶解纤维突破压力,确定压裂用纤维暂堵剂的暂堵强度。在分散状态下进行突破压力测试,将上述制备的酸化压裂用暂堵剂、普通暂堵剂填入人造岩心模具中,用加压泵加压至5MPa将暂堵剂压紧并保持24h,采用相同方法制取1.5cm、1cm、0.7cm、0.4cm厚度的暂堵层岩心,然后用平流泵分别测试突破压力,实验结果如表2所示:
表2.纤维暂堵剂封堵性能测试结果
Figure BDA0000440633770000051
由表2可知,厚度为1.5cm、1cm、0.7cm、0.4cm的岩心,采用酸化压裂用纤维暂堵剂突破压力分别为14MPa、8MPa、5MPa、3MPa,采用普通颗粒性暂堵剂突破压力分别为9MPa、5MPa、3MPa、2MPa,结果说明:纤维暂堵剂的封堵性能较好,完全具备暂堵施工条件。
3.溶解性能测试
实验所用纤维为聚乙烯醇纤维,所用暂堵剂颗粒为聚乙烯醇颗粒。测定纤维复合暂堵剂在不同介质中的溶解率,实验结果如表3所示。
表3.溶解性能测试结果
由表3可知:纤维复合暂堵剂在溶液液中溶解时间小于1h时,溶解率低于50%,说明在此时间段可以充分发挥其封堵特性;溶解时间大于10小时后,其溶解率高于98%,说明可以避免暂堵后对地层的伤害。
4.现场实验
实验地点:川东北某井长兴组地层
实验时间:2013年6月15日
实验液体:胶凝酸:20%HCl+0.8%胶凝剂+2.0%缓蚀剂+0.5%缓蚀增效剂+1.0%铁稳剂+1.0%助排剂,压裂液:0.40%胍胶+0.3%杀菌剂+0.5%粘稳剂+0.5%助排剂+0.3%Na2CO3,暂堵液:上述酸化压裂用纤维暂堵剂,闭合酸:20%HCl+0.4%胶凝剂+2.0%缓蚀剂+0.5%缓蚀增效剂+1.0%铁稳剂+1.0%助排剂,顶替液:0.25%胍胶+0.5%助排剂+清水。
泵注程序:如表4所示:
表4.泵注程序
阶段序号 内容 液体 注入液量(m3 施工排量(m3/min) 预计泵压(MPa)
1 高挤 胶凝酸 200 1.0~2.0 70~80
2 高挤 压裂液 40 2.0~3.0 70~85
3 高挤 暂堵液 45 1.0 70~85
4 高挤 压裂液 40 2.0~3.0 70~85
5 高挤 胶凝酸 120 2.0~3.0 70~85
6 高挤 压裂液 40 2.0~3.0 70~85
7 高挤 暂堵液 30 1.0 70~85
8 高挤 压裂液 40 2.0~3.0 70~85
9 高挤 胶凝酸 360 5.0~6.0 85~90
10 高挤 闭合酸 20 5.0~6.0 85~90
11 高挤 顶替液 10 5.0~6.0 87~93
12 高挤 顶替液 30 1.0~2.0 70~80
如表3所示,第三阶段和第七阶段为暂堵段,共挤入了75方暂堵液,并绘制该井的施工压力曲线,经过两段暂堵施工后,暂堵后期施工压力增加5~15兆帕,表明该暂堵剂对高渗地层起到了封堵效果,暂堵酸化施工达到预期目的。

Claims (3)

1.一种酸化压裂用纤维暂堵剂,其特征在于,它由下述重量份的原料组成:
携带液       90~95,                暂堵纤维      0.8~2。
2.根据权利要求1所述的一种酸化压裂用纤维暂堵剂,其特征在于,所述暂堵纤维为聚乙烯醇纤维、改性聚酯纤维、聚氨酯纤维的一种或多种,且满足以下要求:
A. 纤维长度:3~15mm,暂堵纤维为3种长度的组合,且3~5mm占10~35%,6~10mm占40~60%,11~15mm占15~30%;
B. 纤维抗拉强度:20~800MPa;
C. 纤维直径:10~100μm;
D. 纤维溶解性能:在50℃以上的水溶液中可溶,溶解时间大于30min,且溶解率大于95%;或者在50℃以上温度下,溶于5~20%的盐酸,溶解时间为大于30min,且溶解率大于95%。
3.根据权利要求1所述的一种酸化压裂用纤维暂堵剂,其特征在于,所述携带液由以下重量份的原料组成:
胍胶        0.2~0.6,               杀菌剂          0.1~0.5,
粘稳剂      0.3~0.7,               助排剂          0.3~0.8,
碳酸钠       0.1~0.5。
CN201310698481.3A 2013-12-18 2013-12-18 一种酸化压裂用纤维暂堵剂 Active CN103694976B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310698481.3A CN103694976B (zh) 2013-12-18 2013-12-18 一种酸化压裂用纤维暂堵剂

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310698481.3A CN103694976B (zh) 2013-12-18 2013-12-18 一种酸化压裂用纤维暂堵剂

Publications (2)

Publication Number Publication Date
CN103694976A true CN103694976A (zh) 2014-04-02
CN103694976B CN103694976B (zh) 2016-04-13

Family

ID=50356646

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310698481.3A Active CN103694976B (zh) 2013-12-18 2013-12-18 一种酸化压裂用纤维暂堵剂

Country Status (1)

Country Link
CN (1) CN103694976B (zh)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104694113A (zh) * 2015-02-13 2015-06-10 中国石油天然气股份有限公司 一种提高压裂液携砂能力的方法及其含纤维压裂液
CN105385430A (zh) * 2015-12-11 2016-03-09 西安奥力石油工程有限责任公司 高强度水解纤维压裂暂堵剂
CN106520094A (zh) * 2016-11-02 2017-03-22 中国石油化工股份有限公司 一种酸化压裂用可溶暂堵剂及其制备方法
CN106543995A (zh) * 2016-11-02 2017-03-29 中国石油化工股份有限公司 一种镁合金废屑再利用方法
CN107287675A (zh) * 2016-04-12 2017-10-24 中国石油化工集团公司 一种聚乙烯醇纤维及其制备方法
CN107287669A (zh) * 2016-04-12 2017-10-24 中国石油化工集团公司 一种耐碱抗温pva纤维及其用途
CN109294541A (zh) * 2018-09-25 2019-02-01 中国石油天然气股份有限公司 一种火驱井自降解暂堵剂及其制备方法与应用
CN109294539A (zh) * 2018-09-25 2019-02-01 中国石油天然气股份有限公司 一种火驱井环保封窜剂及其制备方法与应用
CN109554172A (zh) * 2017-09-26 2019-04-02 中国石油化工股份有限公司 一种酸压暂堵剂及其应用
CN110041903A (zh) * 2019-04-25 2019-07-23 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 一种低压漏失气井用堵剂及其制备方法和应用方法
US10883032B2 (en) 2019-02-05 2021-01-05 Saudi Arabian Oil Company Fibrous lost circulation material (LCM)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6599863B1 (en) * 1999-02-18 2003-07-29 Schlumberger Technology Corporation Fracturing process and composition
US20060169449A1 (en) * 2005-01-31 2006-08-03 Halliburton Energy Services, Inc. Self-degrading fibers and associated methods of use and manufacture
CN101273183A (zh) * 2005-06-20 2008-09-24 普拉德研究及发展公司 用于增产的可降解纤维体系
CN101903166A (zh) * 2007-12-14 2010-12-01 3M创新有限公司 纤维聚集体
CN102925133A (zh) * 2012-10-16 2013-02-13 中国石油天然气股份有限公司 用于控制裂缝延伸高度的压裂液和压裂方法
CN102952534A (zh) * 2012-10-16 2013-03-06 中国石油天然气股份有限公司 低损害型压裂液和压裂方法
CN103013486A (zh) * 2012-10-16 2013-04-03 中国石油天然气股份有限公司 提高压裂裂缝中支撑剂铺置效率的压裂液和压裂方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6599863B1 (en) * 1999-02-18 2003-07-29 Schlumberger Technology Corporation Fracturing process and composition
US20060169449A1 (en) * 2005-01-31 2006-08-03 Halliburton Energy Services, Inc. Self-degrading fibers and associated methods of use and manufacture
CN101273183A (zh) * 2005-06-20 2008-09-24 普拉德研究及发展公司 用于增产的可降解纤维体系
CN101903166A (zh) * 2007-12-14 2010-12-01 3M创新有限公司 纤维聚集体
CN102925133A (zh) * 2012-10-16 2013-02-13 中国石油天然气股份有限公司 用于控制裂缝延伸高度的压裂液和压裂方法
CN102952534A (zh) * 2012-10-16 2013-03-06 中国石油天然气股份有限公司 低损害型压裂液和压裂方法
CN103013486A (zh) * 2012-10-16 2013-04-03 中国石油天然气股份有限公司 提高压裂裂缝中支撑剂铺置效率的压裂液和压裂方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
钟森等: "元坝海相超深水平井均匀布酸技术研究及应用", 《石油钻采工艺》 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104694113B (zh) * 2015-02-13 2017-12-01 中国石油天然气股份有限公司 一种提高压裂液携砂能力的方法及其含纤维压裂液
CN104694113A (zh) * 2015-02-13 2015-06-10 中国石油天然气股份有限公司 一种提高压裂液携砂能力的方法及其含纤维压裂液
CN105385430A (zh) * 2015-12-11 2016-03-09 西安奥力石油工程有限责任公司 高强度水解纤维压裂暂堵剂
CN107287675A (zh) * 2016-04-12 2017-10-24 中国石油化工集团公司 一种聚乙烯醇纤维及其制备方法
CN107287669A (zh) * 2016-04-12 2017-10-24 中国石油化工集团公司 一种耐碱抗温pva纤维及其用途
CN106520094A (zh) * 2016-11-02 2017-03-22 中国石油化工股份有限公司 一种酸化压裂用可溶暂堵剂及其制备方法
CN106543995A (zh) * 2016-11-02 2017-03-29 中国石油化工股份有限公司 一种镁合金废屑再利用方法
CN106520094B (zh) * 2016-11-02 2018-12-25 中国石油化工股份有限公司 一种酸化压裂用可溶暂堵剂及其制备方法
CN109554172A (zh) * 2017-09-26 2019-04-02 中国石油化工股份有限公司 一种酸压暂堵剂及其应用
CN109294541A (zh) * 2018-09-25 2019-02-01 中国石油天然气股份有限公司 一种火驱井自降解暂堵剂及其制备方法与应用
CN109294539A (zh) * 2018-09-25 2019-02-01 中国石油天然气股份有限公司 一种火驱井环保封窜剂及其制备方法与应用
CN109294541B (zh) * 2018-09-25 2021-03-09 中国石油天然气股份有限公司 一种火驱井自降解暂堵剂及其制备方法与应用
CN109294539B (zh) * 2018-09-25 2021-03-09 中国石油天然气股份有限公司 一种火驱井环保封窜剂及其制备方法与应用
US10883032B2 (en) 2019-02-05 2021-01-05 Saudi Arabian Oil Company Fibrous lost circulation material (LCM)
US11279862B2 (en) 2019-02-05 2022-03-22 Saudi Arabian Oil Company Fibrous lost circulation material (LCM)
CN110041903A (zh) * 2019-04-25 2019-07-23 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 一种低压漏失气井用堵剂及其制备方法和应用方法

Also Published As

Publication number Publication date
CN103694976B (zh) 2016-04-13

Similar Documents

Publication Publication Date Title
CN103725277B (zh) 一种纤维复合暂堵剂
CN103694976B (zh) 一种酸化压裂用纤维暂堵剂
CN105672970B (zh) 一种实现水平井段内暂堵转向多缝压裂的方法
AU2008236474B2 (en) Compositions and methods for water and gas shut-off in subterranean wells with VES fluids
CN106566511B (zh) 一种表面活性剂胶束驱油剂
CN109630065B (zh) 一种利用高吸水性树脂进行暂堵憋压造分支缝方法
CN104109514B (zh) 一种用于永久性封堵多层低压大孔道油层的封堵剂体系及工艺技术
CN104099074B (zh) 一种体积压裂改造裂缝堵水剂及堵水施工方法
CN106188403B (zh) 一种高温高盐油藏防co2气窜堵剂及其制备方法
US9366125B2 (en) Carbonate based slurry fracturing using solid acid for unconventional reservoirs
CN103113864A (zh) 暂堵剂、复合解堵剂及应用暂堵剂和复合解堵剂复合解堵的方法
US10364660B2 (en) Proppant-free channels in a propped fracture using ultra-low density, degradable particulates
CN103773335B (zh) 可酸化固结型堵漏剂
CN105385430A (zh) 高强度水解纤维压裂暂堵剂
CN102191025A (zh) 一种广谱可变形随钻防漏堵漏剂
CN112011322A (zh) 压井用三元复合暂堵剂及其压井暂堵施工方法
US20180127643A1 (en) Forming proppant-free channels in propped vertically oriented fractures
CN106634911A (zh) 一种逆相态暂堵剂及其制备方法
CN108300442A (zh) 一种页岩气压裂克服高应力差暂堵转向用暂堵剂及其制备方法
CN107313758A (zh) 一种提高油田采收率的调驱方法
US10982126B2 (en) Chemical packer composition and methods of using same for isolation of water/gas zones
CN102618232B (zh) 用于缝洞型油藏的堵剂
CN103952130A (zh) 低压油气井暂堵凝胶及其制备方法
CN106590557A (zh) 用于中温油藏封堵窜流大孔道的凝胶调堵剂及其制备方法
CN106761651A (zh) 一种煤层气井低伤害高导流能力人工裂缝的压裂方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20171010

Address after: West high tech Zone Fucheng Road in Chengdu city of Sichuan province 610000 399 No. 7 Building 3 unit 8 floor No. 803

Patentee after: CHENGDU LEARN-PRACTICES TECHNOLOGY Co.,Ltd.

Address before: Jinjiang District Chengdu City, Sichuan province 610020 Moxiang Road No. 87 building 7 floor 6 No. 1

Patentee before: SICHUAN BRAND PETROLEUM TECHNOLOGY CO.,LTD.

TR01 Transfer of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Fiber temporary plugging agent for acidizing and fracturing

Effective date of registration: 20180426

Granted publication date: 20160413

Pledgee: Chengdu SME financing Company Limited by Guarantee

Pledgor: CHENGDU LEARN-PRACTICES TECHNOLOGY Co.,Ltd.

Registration number: 2018510000044

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20190506

Granted publication date: 20160413

Pledgee: Chengdu SME financing Company Limited by Guarantee

Pledgor: CHENGDU LEARN-PRACTICES TECHNOLOGY Co.,Ltd.

Registration number: 2018510000044

PC01 Cancellation of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Fiber temporary plugging agent for acidizing and fracturing

Effective date of registration: 20190515

Granted publication date: 20160413

Pledgee: Chengdu SME financing Company Limited by Guarantee

Pledgor: CHENGDU LEARN-PRACTICES TECHNOLOGY Co.,Ltd.

Registration number: 2019510000058

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20230217

Granted publication date: 20160413

Pledgee: Chengdu SME financing Company Limited by Guarantee

Pledgor: CHENGDU LEARN-PRACTICES TECHNOLOGY Co.,Ltd.

Registration number: 2019510000058

PC01 Cancellation of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A fiber temporary plugging agent for acid fracturing

Effective date of registration: 20230306

Granted publication date: 20160413

Pledgee: Chengdu SME financing Company Limited by Guarantee

Pledgor: CHENGDU LEARN-PRACTICES TECHNOLOGY Co.,Ltd.

Registration number: Y2023980034110

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Granted publication date: 20160413

Pledgee: Chengdu SME financing Company Limited by Guarantee

Pledgor: CHENGDU LEARN-PRACTICES TECHNOLOGY Co.,Ltd.

Registration number: Y2023980034110

PC01 Cancellation of the registration of the contract for pledge of patent right