摘要
四川盆地页岩气已进入规模开发阶段,然而单井开发成本高,压裂施工难度大,严重制约着页岩气开发的进度及效果。针对四川盆地页岩气开发具体情况,从生产需求、现场施工难度、应用经济成本、环境影响程度上分析石英砂用于页岩气井可行性。为此,从寻找压裂支撑剂入手,通过对国内不同地区可能成为陶粒替代品的石英砂支撑剂进行筛选,开展支撑裂缝导流实验研究。结果表明,性能较优的石英砂,有利于增加页岩储层的体积改造,达到页岩气降本增效的目的,实现规模开发的客观需要。
Shale gas development in Sichuan Basin has entered the large-scale development stage.However,the high cost of single well development and the difficulty of fracturing seriously restrict the progress and outcome of shale gas development.In view of this specific situation,the feasibility of using quartz sand in shale gas wells is analyzed,considering production demand,difficulty of field operation,economic cost and environmental impact.The experimental study of the relationship between proppants and its fracture conductivity is carried out through screening quartz sand proppant,which may be a substitute for ceramics.The results show that the quartz sand with better performance is conducive to increase the stimulation volume of shale reservoir,achieve the goal of reducing cost and increasing efficiency of shale gas development,and eventually realize the objective needs of large-scale development.
作者
高新平
李杰
彭钧亮
韩慧芬
周玉超
王岩
雷银
贾沙沙
GAO Xinping;LI Jie;PENG Junliang;HAN Huifeng;ZHOU Yuchao;WANG Yan;LEI Yin;JIA Shasha(Engineering Technology Research Institute of Southwest Oil&Gas field Company,PetroChina,Guanghan,Sichuan 618300,China;Sichuan Key Laboratory of Shale Gas Evaluation and Exploitation,Chengdu,Sichuan 610091,China;Gas Storage Administrative Division of Southwest Oil&Gas field Company,chongqing 400120,China)
出处
《钻采工艺》
CAS
北大核心
2020年第S01期48-52,I0003,共6页
Drilling & Production Technology
基金
中国石油科学研究与技术开发项目“深层页岩气有效开采关键技术攻关与试验”(编号:2019F-31)
中国石油西南油气田分公司2018年科研科学研究与技术开发项目“相国寺储气库注采井储层伤害评价研究”(编号:20180303-12)
“页岩储层复杂裂缝中支撑剂铺置特征实验评价及数值模拟研究”(编号:20170304-09)。
关键词
页岩气
体积压裂
石英砂
四川盆地
shale gas
volumetric stimulation
quartz sand
Sichuan basin
feasibility analysis
