考虑启动压力梯度的注水井注入能力研究  

Study on the injection capacity of water injection well with the consideration of start-up pressure gradient

作　　者：温庆志[1,2] 于姣姣[3] 钟大康[1] 罗明良[2] 翟恒立[2] 刘广忠[2] 

机构地区：[1]中国石油大学博士后流动站,北京102249 [2]中国石油大学(华东)石油工程学院,山东青岛266555 [3]中海石油气电集团有限责任公司技术研发中心,北京100027

出　　处：《西安石油大学学报（自然科学版）》2012年第4期66-71,117,共6页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家自然科学基金资助项目"MES胶束/纳米TiO2自组装体系流变动力学研究"(编号:50904076);中国博士后科学基金资助项目(编号:2012M510713)

摘　　要：以五点井网为研究对象,在考虑启动压力梯度的基础上,建立油藏注水物理模型和数学模型,并对其差分求解.研究了启动压力梯度、注采井距、渗透率等因素对产油量和注水量的影响,绘制了不同因素影响下的地层压力等高线图.结果表明,启动压力梯度、注采井距越小,渗透率越大,则油井的产量越高,注水井的水驱控制程度越大,波及范围越广,且注采井距对水驱控制程度的影响最大.The physical model and mathematical model of the reservoirs produced by 5-spot pattern are established considering the start-up pressure gradient,and they are solved using finite difference.The influence of start-up pressure gradient,injection-production well spacing and reservoir permeability on the oil production and water injection amount are studied by a case,and the formation pressure contour lines under the conditions of different influencing factors are presented.The results show that,the output of the oil well and the control degree and sweep volume of water injection wells increase with the start-up gradient pressure and injection-production well spacing decreasing and reservoir permeability increasing,and the influence of injection-production well spacing on the water injection control degree of a water injection well is the greatest.The study results will provide some guidance to optimizing injection-production pattern.

关 键 词：油藏注水 启动压力梯度 注入能力 波及范围 

分 类 号：TE355[石油与天然气工程—油气田开发工程]