CN103694977B - 一种抗剪切延迟交联有机调剖剂 - Google Patents

一种抗剪切延迟交联有机调剖剂 Download PDF

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CN103694977B
CN103694977B CN201310615797.1A CN201310615797A CN103694977B CN 103694977 B CN103694977 B CN 103694977B CN 201310615797 A CN201310615797 A CN 201310615797A CN 103694977 B CN103694977 B CN 103694977B
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CN103694977A (zh
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邱衍辉
刘涛
王桂杰
边朝亮
汤琦
雷宁
郭宜民
方宗元
迟淑梅
李雪梅
徐海波
刘生平
李度兵
王国成
王品毅
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Liaohe Petroleum Exploration Bureau
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504—Compositions based on water or polar solvents
    • C09K8/506—Compositions based on water or polar solvents containing organic compounds
    • C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504—Compositions based on water or polar solvents
    • C09K8/506—Compositions based on water or polar solvents containing organic compounds
    • C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/5083—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

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Abstract

本发明涉及一种油田注水井调驱调剖技术领域，特别涉及一种抗剪切延迟交联有机调剖剂。该调剖剂的各组成成分及其体积摩尔浓度为：800万分子量阴离子聚丙烯酰胺0.4-0.6%，重铬酸钠0.1-0.2%，硫脲0.4-0.6%，亚硫酸钠0.05%。本发明实现了经过地层剪切后成胶强度满足低渗裂缝地层调剖要求，通过调整稳定剂的浓度可以控制成胶时间，满足不同井距油藏要求，提高采收率。克服了现有调驱药剂经过水井近井地带剪切后强度大幅度下降，达不到封堵裂缝的要求，无法满足低渗裂缝地层调剖要求的不足。

Description

一种抗剪切延迟交联有机调剖剂
技术领域：
本发明涉及一种油田注水井调驱调剖技术领域，特别涉及一种抗剪切延迟交联有机调剖剂。
背景技术：
油田注水开发至中高含水期，采取调驱调剖技术是提高采收率的重要手段，而对于低渗油藏，为提高采收率一般采取压裂方式增产，当注水开发后注入水沿着裂缝突进，造成油井快速水淹，由于水井未进行压裂投产，普通调驱药剂经过水井近井地带剪切后强度大幅度下降，达不到封堵裂缝的要求，无法满足低渗裂缝地层调剖要求。
发明内容：
本发明要解决的技术问题是提供一种抗剪切延迟交联有机调剖剂，该调剖剂实现了经过地层剪切后成胶强度满足低渗裂缝地层调剖要求，通过调整稳定剂的浓度可以控制成胶时间，满足不同井距油藏要求，提高采收率。克服了现有调驱药剂经过水井近井地带剪切后强度大幅度下降，达不到封堵裂缝的要求，无法满足低渗裂缝地层调剖要求的不足。
本发明所采取的技术方案是：一种抗剪切延迟交联有机调剖剂，该调剖剂的各组成成分及其体积摩尔浓度为：800万分子量阴离子聚丙烯酰胺0.4-0.6%，重铬酸钠0.1-0.2%，硫脲0.4-0.6%，亚硫酸钠0.05%。
本发明的有益效果是：本发明经过地层剪切后成胶强度满足低渗裂缝地层调剖要求，通过调整稳定剂的浓度可以控制成胶时间，满足不同井距油藏要求，提高采收率。
具体实施方式：
实施例1
一种抗剪切延迟交联有机调剖剂，该调剖剂的各组成成分及其体积摩尔浓度为：800万分子量阴离子聚丙烯酰胺0.4%、重铬酸钠0.1%、硫脲0.4%、亚硫酸钠0.05%，在PH值为6-9之间，温度60℃条件下，反应生成抗剪切延迟交联有机调剖剂，成胶后强度26000mPa·s，实施后吸收剖面发生明显变化。
实施例2
一种抗剪切延迟交联有机调剖剂，该调剖剂的各组成成分及其体积摩尔浓度为：800万分子量阴离子聚丙烯酰胺0.6%、重铬酸钠0.2%、硫脲0.6%、亚硫酸钠0.05%，在PH值为6-9之间，温度60℃条件下，反应生成抗剪切延迟交联有机调剖剂，成胶后强度58000mPa·s，实施后吸收剖面发生明显变化。
实施例3
一种抗剪切延迟交联有机调剖剂，该调剖剂的各组成成分及其体积摩尔浓度为：800万分子量阴离子聚丙烯酰胺0.45%、重铬酸钠0.15%、硫脲0.5%、亚硫酸钠0.05%，在PH值为6-9之间，温度60℃条件下，反应生成抗剪切延迟交联有机调剖剂，成胶后强度37800mPa·s，实施后吸收剖面发生明显变化。
可以理解的是，以上关于本发明的具体描述，仅用于说明本发明而并非受限于本发明实施例所描述的技术方案，本领域的普通技术人员应当理解，仍然可以对本发明进行修改或等同替换，以达到相同的技术效果；只要满足使用需要，都在本发明的保护范围之内。

Claims (1)

1.一种抗剪切延迟交联有机调剖剂，其特征在于：该调剖剂的各组成成分及其体积摩尔浓度为：800万分子量阴离子聚丙烯酰胺0.4-0.6%，重铬酸钠0.1-0.2%，硫脲0.4-0.6%，亚硫酸钠0.05%。
CN201310615797.1A 2013-11-26 2013-11-26 一种抗剪切延迟交联有机调剖剂 Expired - Fee Related CN103694977B (zh)

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CN103952130A (zh) * 2014-05-05 2014-07-30 克拉玛依市红都有限责任公司 低压油气井暂堵凝胶及其制备方法
CN104342095B (zh) * 2014-11-10 2016-02-17 中国石油大学(华东) 一种自生气可膨胀泡沫冻胶及其制备方法与应用
CN104910883A (zh) * 2015-07-01 2015-09-16 中国石油大学(华东) 一种延迟交联铬冻胶调剖堵水剂
CN116044391B (zh) * 2023-03-09 2024-06-21 西南石油大学 用于确定低渗油藏水平井调剖剂用量的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102559158A (zh) * 2010-12-24 2012-07-11 中国石油天然气股份有限公司 油井酸性凝胶调堵剂
CN102816558A (zh) * 2012-09-14 2012-12-12 中国石油大学(华东) 一种深部调剖堵水用堵剂及其制备方法
CN103013480A (zh) * 2012-12-27 2013-04-03 大庆中油泰克石油技术服务有限公司 改性石油胶颗粒复合调剖堵水剂及多轮次双向调堵技术
CN102504777B (zh) * 2011-10-14 2013-10-02 中国石油天然气集团公司 延缓交联聚合物强凝胶深部调剖剂及其制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102559158A (zh) * 2010-12-24 2012-07-11 中国石油天然气股份有限公司 油井酸性凝胶调堵剂
CN102504777B (zh) * 2011-10-14 2013-10-02 中国石油天然气集团公司 延缓交联聚合物强凝胶深部调剖剂及其制备方法
CN102816558A (zh) * 2012-09-14 2012-12-12 中国石油大学(华东) 一种深部调剖堵水用堵剂及其制备方法
CN103013480A (zh) * 2012-12-27 2013-04-03 大庆中油泰克石油技术服务有限公司 改性石油胶颗粒复合调剖堵水剂及多轮次双向调堵技术

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