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本文针对大情字井——乾北地区三角洲前缘带裂缝性、敏感性、超低渗透、裂缝性薄(互)层现有常规压裂液体系给压裂改造提高产能带来的难题,开展了超低渗透、裂缝性薄(互)层天然裂缝评价、支撑天然裂缝设计及工艺研究及高温生物酶应用配套技术的研究。通过两年来在大情字井——乾北地区三角洲前缘带裂缝性、敏感性储层超低渗透、裂缝性薄(互)层的集成研究与压裂实践,取得了认识,为此类储层产能提高提供了技术支持。
In this paper, according to the problems existing in Daqingzijing - the delta front in the dry delta region, the conventional fracturing fluid system with fracture, sensitivity, ultra-low permeability and fracture thin (mutual) Undertake ultra-low permeability, fractured thin (mutual) natural fractures evaluation, support the design and process of natural cracks and high-temperature biological enzyme application supporting technology research. Through the past two years, we have gained an understanding of the integrated research and fracturing practice of the ultra-low permeability and fractured thin (mutual) layers of the fractured and sensitive reservoirs in the delta of the heartland of the dry Gubei area, Technical support for reservoir capacity enhancement.