海上低渗透互薄层油藏水平井限流法压裂射孔参数的优化  

Research on Optimization of Perforation Parameters of Limited-entry Fracturing for Horizontal Wells in Offshore Low-permeability Interbedded Reservoirs Based on Flow Distribution

作　　者：徐康泰[1] 李江飞[2] XU Kangtai;LI Jiangfei(a.Dean’s Office,Chengde Petroleum College,Chengde,067000,China;Department of Thermal Engineering,Chengde Petroleum College,Chengde,067000,China)

机构地区：[1]承德石油高等专科学校教务处,河北承德067000 [2]承德石油高等专科学校热能工程系,河北承德067000

出　　处：《温州职业技术学院学报》2020年第1期62-66,共5页Journal of Wenzhou Polytechnic

基　　金：河北省重点研发计划自筹项目(17273204)。

摘　　要：随着海上低渗透互薄层油藏的开采,水平井限流法压裂技术成为此类储层有效开采的主要手段之一。考虑孔眼磨损及裂缝内压降对流量分配的影响,建立多裂缝扩展的流量分配数学模型;以Palmer拟三维水力裂缝扩展模型为基础,完成考虑流量分配的海上低渗透油藏水平井限流法压裂多裂缝三维扩展数值模拟研究,结果显示:优化方案突显了预期的裂缝改造规模。With the exploration of offshore low-permeability interbedded reservoirs,the limited-entry fracturing technique for horizontal wells becomes one of the main means for effective exploitation of such reservoirs.The mathematical model of flow distribution for multi-fracture extension was established,considering the influence of hole abrasion and pressure drop in fractures on flow distribution.Based on Palmer quasi three-dimensional hydraulic fracture extension model,this paper completed the numerical simulation study on the three-dimensional multi-fracture extension of limited-entry fracturing for horizontal wells in offshore low-permeability interbedded reservoirs,considering flow distribution.The results showed the scale of fractures reconstruction met the expectation through optimizing the scheme.

关 键 词：海上低渗透油藏 水平井 流量分配 限流法压裂 射孔参数 

分 类 号：TE53[石油与天然气工程—油气田开发工程]