何春明,郭建春,刘超
HE Chunming,GUO Jianchun,LIU Chao

• 1:油气藏地质及开发工程国家重点实验室

摘要(Abstract)：

针对深层碳酸盐质砾岩储层酸压存在的问题,提出了自转向酸分流转向技术、酸蚀裂缝导流能力优化技术、预处理酸解堵降温技术等,并与限压不限排量的施工策略、重复射孔技术、快速返排技术、防应力敏感的排液生产技术以及风险应急预案设计相结合,最终形成了适合于深层低渗裂缝性碳酸盐质砾岩储层的酸压技术。在华北油田进行了先导性试验,无产量的兴94x井经酸化压裂改造后,日产油量19.18 t、日产气量69 915 m~3取得了较好效果。
In view of the acidizing-fracturing problems for deep carbonate conglomerate reservoir,the following techniques:VES acid distributary diversion,conductivity optimization of acid etched fractures,acidizing preprocess for plugging removal and temperature reduction and so on are presented;and moreover connecting with the treating strategy of restraining pressure without constraining displacement,re-perforating technique,quick-flow-back technique,liquid discharging-producing stress-sensitivity-proof technique and the design of risk emergenc) plan,the acidizing-fracturing technique adapting for the deep,low-permeability fractured carbonate conglomerate reservoir is developed at last.The pilot test has conducted in Huabei Oilfield,after the treatment of the above technique for Well Xing 9-4x with no production,much better results are obtained;daily oil production is up to 19.18 t and the gas production has reached 69915m3.

关键词(KeyWords)： 碳酸盐质砾岩;压裂酸化;分流转向;酸蚀裂缝导流能力
carbonate conglomerate;fractuiing-acidizing;distributary diversion;conductivity of acid etched fracture

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目“油气层岩矿酸损伤理论研究”(51074138)

作者(Author): 何春明,郭建春,刘超
HE Chunming,GUO Jianchun,LIU Chao

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