准噶尔盆地石炭系长直井段井网立体压裂参数优化研究  

Optimization of Well Pattern Volume Fracturing Parameters for Carboniferous Long Vertical Intervals in Junggar Basin

作　　者：王健[1] 张景臣[2] 王波 刘昊[2] 孔辉 李恒 WANG Jian;ZHANG Jingchen;WANG Bo;LIU Hao;KONG Hui;LI Heng(Engineering Technology Research Institue,PetroChina Xinjiang 0ilfield Company,Karamay,Xinjiang 834000,China;China University of Petroleum(Beijing),Beijing 102249,China)

机构地区：[1]中国石油新疆油田分公司工程技术研究院 [2]中国石油大学(北京)

出　　处：《钻采工艺》2022年第1期70-74,共5页Drilling & Production Technology

基　　金：天山青年科研基金“大规模体积压裂开发含油污泥综合治理与利用研究”(编号:2018Q030);中石油战略合作科技专项“砾岩油藏压裂有效性控制机理及压裂参数优化研究”(编号:ZLZX2020-02-07-03)和“吉木萨尔上下甜点高效动用机理与立体开发技术研究”(编号:ZLZX2020-02-07-05)。

摘　　要：准噶尔盆地九区M井区石炭系油藏储层纵向跨度大、层多动用差、综合产能低,常规直井压裂技术难以实现区块高效开发。为增大改造体积和提高单井产能,基于工区储层物性特征和生产动态特征,建立了三维地质模型和三维地应力模型,通过水力压裂数值模拟分析,借鉴水平井体积压裂概念,提出了石炭系长直井段立体井网体积压裂设计方法,并分析了排量、砂量、簇间距等工程因素对储层裂缝的影响规律。现场试验表明,根据此优化方法对井区10口直井进行压裂改造,生产180 d后,综合产能比压裂前提高了40%以上。The Carboniferous reservoir in M well block of Area 9 in Junggar basin is characterized by large longitudinal span, multiple layers with poor production and low comprehensive productivity. It is difficult for conventional vertical well fracturing technology to achieve block efficient development. To increase the stimulated volume and improve the single well productivity, a three-dimensional geological model and three-dimensional in-situ stress model are established based on the reservoir physical properties and production performance. Based on the numerical simulation analysis and the concept of horizontal well SRV fracturing, the design method of well pattern stimulated reservoir volume fracturing in Carboniferous reservoir is put forward, and the influence of displacement, sand amount and cluster spacing is analyzed. The field tests show that after 180 days of production, the comprehensive productivity of 10 vertical wells in the well area increased by more than 40% compared with that before fracturing.

关 键 词：石炭系油藏 直井 立体压裂 数值模拟 

分 类 号：TE357[石油与天然气工程—油气田开发工程]