深层碳酸盐质砾岩储层酸压技术  

ACIDIZING-FRACTURING TECHNOLOGY FOR DEEP CARBONATE CONGLOMERATE RESERVOIR

作　　者：何春明 郭建春 刘超 

机构地区：[1]油气藏地质及开发工程国家重点实验室,四川成都610500

出　　处：《大庆石油地质与开发》2013年第2期145-149,共5页Petroleum Geology & Oilfield Development in Daqing

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

摘　　要：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 distfibutary 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 emergency 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 tech- nique 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 69 915 m3.

关 键 词：碳酸盐质砾岩 压裂酸化 分流转向 酸蚀裂缝导流能力 

分 类 号：TE357.2[石油与天然气工程—油气田开发工程]