渤海疏松砂岩储层固结支撑剂失效返吐敏感性实验研究  

Experimental study on the sensitivity of consolidation proppant failure to backflow in Bohai loose sandstone reservoirs

作　　者：高尚 邹剑 兰夕堂 张丽平 符扬洋 代磊阳 GAO Shang;ZOU Jian;LAN Xi-tang;ZHANG Li-ping;FU Yang-yang;DAI Lei-yang(Production Enhancement Measures Office of Bohai Petroleum Research Institute Oil Production Technology Research Institute,Tianjin 300452,China)

机构地区：[1]渤海石油研究院采油工艺研究所增产措施室,天津300452

出　　处：《精细与专用化学品》2023年第10期23-28,共6页Fine and Specialty Chemicals

摘　　要：过筛管压裂技术可实现渤海疏松砂岩储层解堵及增产,但压后固结支撑剂失效和返吐,严重制约了此项技术的应用。针对疏松砂岩过筛管压裂井,开展了不同闭合压力、裂缝宽度、树脂陶粒充填占比、流体黏度、树脂陶粒类型与充填密实程度等因素的模拟评价实验,对固结支撑剂失效返吐的敏感性开展研究。结果表明,不同树脂陶粒充填占比、树脂陶粒类型与充填密实程度、流体黏度对固结支撑剂返吐影响显著,闭合压力、裂缝宽度对固结支撑剂返吐影响较低。在后续过筛管压裂技术的实施中,需提高封口带强度、提高树脂陶粒占比;在压后生产中可根据具体的储层流体特征、固结支撑剂强度及裂缝宽度等优化生产参数,达到降低固结支撑剂失效和返吐风险的目的。The screening tube fracturing technology can achieve the removal of blockages and increase production in Bohai loose sandstone reservoirs,but the failure of consolidation proppant and backflow after fracturing have seriously restricted the application of this technology.In the subsequent implementation of sieve tube fracturing technology,it was necessary to improve the strength of the sealing band and increase the proportion of resin ceramic particles.In post fracturing production,production parameters can be optimized based on specific reservoir fluid characteristics,consolidation proppant strength,and crack width,in order to reduce the risk of consolidation proppant failure and backflow.

关 键 词：疏松砂岩 过筛管压裂 固结支撑剂 返吐 敏感性 

分 类 号：TE343[石油与天然气工程—油气田开发工程]