苏里格气田致密底水气藏堵水压裂技术

发布时间：2018-03-09 08:11

本文选题：致密砂岩　切入点：底水油气藏　出处：《石油钻探技术》2017年04期 　论文类型：期刊论文

【摘要】：针对苏里格气田致密底水气藏压裂改造后易沟通水层,造成含水率上升快,有效期短等问题,通过自主研发固化封堵剂,基于颗粒沉降规律和压裂裂缝的扩展情况,结合苏里格气田E区块的储层地质特征,优选射孔位置等工艺参数,将堵水与压裂结合在一起形成了底水致密气藏堵水压裂技术。苏里格气田E区块的14口井应用了堵水压裂技术,与采用常规压裂技术的邻井相比,平均产水量降低了62.6%,平均产气量提高明显。这表明固化封堵剂可在储层条件下固化形成低渗封堵层封堵底水上升,实现降低产水量,提高产气量的目的。
[Abstract]:The tight bottom water gas reservoir in Sulige gas field is easy to communicate with water layer after fracturing, which causes the water cut to rise quickly and the validity period is short. Based on the rule of particle sedimentation and the expansion of fracturing fracture, the solidified plugging agent is developed independently. Combined with the reservoir geological characteristics of E block of Sulige gas field, the optimum selection of perforation location and other technological parameters, Water shutoff and fracturing are combined to form the bottom water tight gas reservoir shutoff and fracturing technology. In 14 wells in E block of Sulige gas field, water plugging and fracturing technology is used, which is compared with the conventional fracturing technology for adjacent wells. The average water production is reduced by 62.6, and the average gas production is increased obviously, which indicates that the solidified plugging agent can solidify to form a low permeability plugging layer under the reservoir condition and the bottom water can be plugged up to achieve the purpose of reducing water production and increasing gas production.
【作者单位】：中国石油集团川庆钻探工程有限公司钻采工程技术研究院;低渗透油气田勘探开发国家工程实验室;
【基金】：中石油集团公司重大技术现场试验与应用项目“拖动压裂与底水油气藏堵水压裂工艺技术研究与应用”(编号:2014T-003-009)部分研究内容
【分类号】：TE377

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