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)03037507
DOI:10.13639/j.odpt.2017.03.022
Vol. 39 No. 3 May 2017
渤海油田聚驱受效井液气交注复合深部解堵工艺
高尚张璐刘义刚刘长龙孟祥海邹剑
引用格式：高尚，张路，刘义则，刘长龙，孟祥海，部剑.激海油田聚驱受效并液气交注复合深部解墙工艺」】.石油钻采工艺,2017,39(3)：375-381
摘要：动海油田注聚受效并堵塞物复杂，常规解堵工艺效果差。堵塞物组分分析表明，堵塞物以有机、无机及聚合物相互包覆的复杂形式存在，为此提出先采用有机溶剂清洗有机质，再对含聚胶团堵塞物进行分散，采用逐级剥高逐级解除的解堵恩路。从溶解有机物、胶团降解及氧化破胶等3方面开展不同类型解墙液溶解效果对比实验，结合措塞机理优选解墙液体系为 8%~10%甲酸+4%~6%有机溶剂解堵剂D+1%强氧化剂。潮海油田注聚受效并堵塞半径可达3m以上，为提高解墙效果及扩大解墙半径，通过对比分析墙塞物多轮次溶解效果，配套形成了多轮次处理及液气交替注入或伴注的解堵工艺。新工艺现场试验单并日增油达60m/d，应用效果显著，为解决聚驱受效并产能释放难题提供了新的思路，具有较好的现场推广价值，
关键词：聚合物驱；受效井；堵塞机理；深部解堵；解堵液体系；多轮次注入；液气交替注入
中图分类号：TE358.5
文献标识码：B
In-depth combined blockage removing technology with liquid alternating gas injection for
polymer flooding response wells inBohai Oilfield
GAO Shang, ZHANG Lu, LIU Yigang, LIU Changlong, MENG Xianghai, ZOU Jiar
Oil Prodaction Techtnology Research Institirfe of Tianjin Bohai Oijfield Inrstitufe, CNOOC China Limited, Tianjin 300452, Chind
Citation: GAO Shang, ZHANG Lu, LIU Yigang, LIU Changlong, MENG Xianghai, ZOU Jian. In-depth combined blockage removing technology with liquid alternating gas injection for polymer flooding response wells in Bohai Oilfield [ J] . Oil Drilling & Production Technology, 2017, 39(3): 375-381.
aae a e sa sa ex s eo e s s eee aa sod aaded s a o aoo the complex form with organic matters, inorganic matters and polymer coating with each other. Therefore, it was proposed to adopt the concept of blockage stripping and removing step by step, i.e., cleaning the organic matters using organic solvent firstly and then dispers-ing the micelle bearing blockage. Contrast experiments were carried out on the blockage removing results of various blockage removers from three aspects, i.e., organic matter dissolution, micelle degradation and gel oxidizing and breaking. The blockage remover system selected according to the blockage removing mechanism is composed of 8%-10% methanoic acid + 4%-6% organic blockage remover D+1% strong oxidizer. The block radius of polymer flooding response wells in Bohai Oilfield is over 3 m. To improve the blockage re-moving effects and expand blockage removing radius, polycyclic blockage dissolution effects were compared and analyzed. And conse-quently, the blockage removing technology of polycyclic treatment and liquid alternating gas injection or accompanied injection was de veloped. This new technology was tested on site, and its application effect is remarkable with single-well daily oil increment of 60 m'/d It provides the new idea for solving the productivity difficulty of polymer flooding response well. And it is worth popularizing in field.
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第一作者：高尚（1983-),2010年毕业于西南石油大学油气田开发工程专业，茂硕士学位，现从事油田增产措荒相关研究工作，工程师。
通讯地址：(300452）天津市滨海新区川路2121号游海石油大厦B座。电话；022-66501172。E-mail：gaoshang@enooc. com.cn
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