超细水泥封堵技术在长井段层系封堵中的应用
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- 英文论文题名：Application of Superfine Cement Shutoff Technology for the Long Well Sections
- 论文作者：吕大伟
- 英文论文作者：Lv Dawei
- 年：2016
- 作者机构：大庆油田有限责任公司第四采油厂;
- 论文关键词：超细水泥 ; 长井段 ; 凝胶颗粒 ; 防返吐封隔器 ; 封堵成功率
- 英文论文关键词：superfine cement ; long well section ; gel particle ; flowback prevention packer ; plugging success rate
- 会议召开时间：2016-09-01
- 会议录名称：《采油工程文集》2016年第3辑
- 英文会议录名称：Oil Production Engineering
- 语种：中文
- 分类号：TE355
- 学会代码：DQGY
- 学会名称：大庆油田有限责任公司采油工程研究院
- 页数：5
- 文件大小：1202k
- 原文格式：D
摘要
针对常规封堵工艺在XB区块封堵上部油层、开采下部油层时存在不适应性问题,应用超细水泥封堵技术进行长井段封堵,封堵后井筒缩径小,满足了"能封住、能解开、能深抽、能测试"的油田开发要求。依据油层特点,合理优选超细水泥粒径、配比和用量,并结合前置凝胶颗粒段塞调整油层吸液能力,防止后续超细水泥浆受油层流体侵蚀;利用防返吐挤注工艺技术,实现超细水泥"带压候凝",保证封堵质量。经现场试验表明,超细水泥封堵技术能够利用一趟挤注管柱完成长井段封堵,一次封堵井段长度达到120m,封堵成功率100%,具好良好的应用前景。
Due to the conventional shutoff technology is not adaptable that aimed at plugging upper sections while producing oil from the lower sections in XB block, the superfine cement shutoff technology has been used to plug the long well sections. After plugging, the diameter of hole size is only reduced slightly, which can meet the requirements with the favorable abilities of "plugging, blocking removal, deep pumping and testing." According to the reservoir characteristics, the particle size, mixing ratio and dosage of superfine cement have been optimized,and then combined with pre-gel particle slug to adjust the liquid absorption capacity of reservoir and to prevent the subsequent superfine cement slurry from erosion by reservoir fluids. By using the flowback prevention squeezing technology, the WOC(waiting-on-cement) of superfine cement slurry with pressure can be realized which assures the shutoff quality. Field tests showed that superfine cement shutoff technology can plug long well sections up to120 m by one-trip pipe string, with the plugging success rate 100%, which has a good prospect for application.
Due to the conventional shutoff technology is not adaptable that aimed at plugging upper sections while producing oil from the lower sections in XB block, the superfine cement shutoff technology has been used to plug the long well sections. After plugging, the diameter of hole size is only reduced slightly, which can meet the requirements with the favorable abilities of "plugging, blocking removal, deep pumping and testing." According to the reservoir characteristics, the particle size, mixing ratio and dosage of superfine cement have been optimized,and then combined with pre-gel particle slug to adjust the liquid absorption capacity of reservoir and to prevent the subsequent superfine cement slurry from erosion by reservoir fluids. By using the flowback prevention squeezing technology, the WOC(waiting-on-cement) of superfine cement slurry with pressure can be realized which assures the shutoff quality. Field tests showed that superfine cement shutoff technology can plug long well sections up to120 m by one-trip pipe string, with the plugging success rate 100%, which has a good prospect for application.
引文
[1]任从军,李俊平,岳志强,等.超细水泥封堵剂研究与应用[J].钻井液与完井液,2001,18(1):16-20.
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[3]赵长庆,范振中,刘丽英.超细水泥用于油田堵水技术[J].大庆石油地质与开发,2002,21(1):65-66.
[4]芦维国,汪竹,孙庆宇,等.超细水泥浆封堵技术的完善与应用[J].油田化学,2004,21(1):29-38.
[5]夏长淮,周海彬,刘强鸿,等.多层段水泥封窜及配套工艺技术[J].油气田地面工程,2010,29(5):39-40.
[2]滕福景,齐俊芳,于永生,等.改性超细水泥堵剂的研究与应用[J].西安石油大学学报(自然科学版),2006,21(4):79-82.
[3]赵长庆,范振中,刘丽英.超细水泥用于油田堵水技术[J].大庆石油地质与开发,2002,21(1):65-66.
[4]芦维国,汪竹,孙庆宇,等.超细水泥浆封堵技术的完善与应用[J].油田化学,2004,21(1):29-38.
[5]夏长淮,周海彬,刘强鸿,等.多层段水泥封窜及配套工艺技术[J].油气田地面工程,2010,29(5):39-40.