第39参第3期 2017年5月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017)03038206
DOI:10.13639/j.odpt.2017.03.023
Vol. 39 No. 3 May 2017
稠油蒸汽吞吐逐级深部封窜及乳化降黏复合技术
张丁涌
中石化胜利油田分公司现河来油，
引用格式：张丁涌.稠油蒸汽吞吐逐级深部封审及乳化降黏复合技术[J］.石油钻采工艺，2017,39(3)：382-387
摘要：针对稠油高轮次吞吐阶段出现的严重汽宰间题，采取了稠油乳化降黏技术，大幅度地提高了周期吞吐采收率，为了克服单一封审或乳化降黏技术的局限性与不足，提出了稠油蒸汽吞吐逐级深部审与乳化降黏复合技术。通过室内实验和物理模拟实验，优选了具有不同耐温能力的封审剂和具有高效降黏效果的乳化降黏剂，进而确定了逐级深部封审体系，即近井地带、过淀地带及送井地带组合封审剂。宝内实验结累表明，逐级封审体系的对堵率达到了99%以上，乳化降黏体系的降黏率达到了95%以上。该技术在矿场的成功应用，有力地证明了该技术能够有效提高稠油开发效果，为同类期油油藏提高采收率提供了理论支撑和技术支持。
关键词：稠油；蒸汽吞吐；深部封宰；乳化降黏
中图分类号：TE345
文献标识码：B
A composite technology of in-depth stepwise channeling blocking and emulsifying viscosity
reduction for heavy-oil steam huff and puff
ZHANG Dingyong
Xianhe Oil Prodrction Plant, SINOPEC Shengli Oijiela Compary, Dongving 257000, Shandong, Chin
Citation: ZHANG Dingyong. A composite technology of in-depth stepwise channeling blocking and emulsifying viscosity reduc-tion for heavy-oil steam huff and puff [ J] . Oil Drilling & Production Technology, 2017, 39(3): 382-387.
Abstract: To deal with serious steam channeling which occurs after several cycles of steam soaking in heavy oil reservoirs, emulsifying viscosity reduction technology was adopted, and consequently the recovery factor is increased significantly. To overcomc the restriction and deficiency of single channeling blocking or emulsifying viscosity reduction technology, a composite technology of in-depth stepwise channeling blocking and emulsifying viscosity reduction for heavy-oil steam huff and puff was developed. The chan-neling blocking agent with different temperature resisting capacities and the emulsifying viscosity reducer with high-efficiency viscosity reducing effect were selected by means of laboratory experiments and physical simulation experiments. Then, the in-depth stepwise channeling blocking system was determined for the zones near the wellbore and far from the wellbore and that between them. It is shown from laboratory experiments that the plugging rate of stepwise channeling blocking system is higher than 99% and the viscosity reducing rate of emulsifying viscosity reduction system is higher than 95%. Its successful application in field demonstrates strongly its validity in heavy oil development improvement. It provides the theoretical basis and technical support for enhanced recovery of similar heavy oil reservoirs.
Key words: heavy oil; steam huff and puff; deep channeling blocking; emulsifying viscosity reduction
目前现河稠油主力油藏已进人高轮次吞吐末期，为实现产能平稳接替，2007年以来乐安油田针对
薄层、出砂、超稠等低品质油藏，应用了以裸眼精密滤砂管为主的热采水平井配套开发新技术，实现了
002000910）第一作者：张丁涌（1971-)2015年毕业于中国石油大学油气田开发工程专业，博士，日前从事油气田开发技术研究与管理工作。通试地
址：(257000)山东东营市济宁路4号现河采油厂。电话；0546-8794992。E-mail:zhangdingyong.slyt@sinopec.com
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