水力冲击压裂技术地面打靶模拟实验研究  

Research on Ground Targeting Simulation Experiment of Hydraulic Fracturing Technology

作　　者：李旭光 孙林 陈维余 熊培祺 杨淼 LI Xuguang;SUN Lin;CHEN Weiyu;XIONG Peiqi;YANG Miao(CNOOC EnerTech-Drilling&Production CO.,Tianjin 300452,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司

出　　处：《钻采工艺》2021年第4期39-42,56,共5页Drilling & Production Technology

基　　金：中国海洋石油集团公司科研项目“爆燃压裂酸化储层改造技术研究与应用”(编号:CNOOC-KJ 135KJXM NFGJ2017-04);中海油能源发展股份有限公司科技攻关项目“海上油田脉冲水力冲击压裂酸化联作技术研究与应用”(编号:HFKJ-GJ201904)联合资助。

摘　　要：为确保水力冲击压裂技术安全高效应用于海上油田,根据水力冲击压裂作用原理,设计了水力冲击压裂地面打靶模拟实验装置,同时建立了实验数学模型,对技术造缝情况及增压效果进行了直观实验模拟。实验结果表明,水力冲击压裂技术增压效果明显,峰值压力监测值与建立的实验数学模型模拟值相对误差小于5%,验证了地面模拟实验装置的合理性及数学模型的准确性;三组水泥靶实验后均形成了贯穿靶体的两条对称裂缝,直观验证了水力冲击压裂技术的造缝效果。研究成果为海上油田矿场应用峰值压力设计及冲击片破裂压力设计提供了重要理论依据,对丰富海上油田低渗储层增产技术手段具有重要指导意义。In order to ensure the safe and efficient application of hydraulic fracturing technology in offshore oil fields,according to the principle of hydraulic fracturing,a hydraulic impact fracturing ground targeting simulation experimental device is designed,and an experimental mathematical model is established to simulate the fracture formation and pressurization effect.The experimental results show that the hydraulic impact fracturing technology has obvious pressurization effect,the relative error between the peak pressure monitoring value and the simulation value of the established experimental mathematical model is less than 5%,which verifies the rationality of the ground simulation experimental device and the accuracy of the mathematical model;after three groups of cement target experiments,two symmetrical fractures have been formed throughout the target body,which directly verifies the fracture making effect of hydraulic fracturing technology.The research results provide an important theoretical basis for the design of peak pressure applied in the field and the design of bursting pressure of the impact plate,and have an important guiding significance for enriching the stimulation technology of low permeability reservoir in offshore oilfield.

关 键 词：水力冲击压裂 地面打靶 实验 低渗 

分 类 号：TE53[石油与天然气工程—油气田开发工程]