利用垂向脉冲干扰试井技术确定油藏类型的方法  

Method of determining type of oil-gas reservoir by vertical pulse test

作　　者：陈燕 李佶晔 徐凤兰 陈秋峰 陈永兰 马云露 CHEN Yan;LI Jiye;XU Fenglan;CHEN Qiufeng;CHEN Yonglan;MA Yunlu(Well Testing Branch,CNPC Bohai Drilling Engineering Co.,Ltd.,Langfang,Hebei 065007,China;Bayan Exploration and Development Branch of PetroChina Huabei Oilfield Company,Bayannur,Inner Mongolia,015000,China)

机构地区：[1]中国石油集团渤海钻探油气井测试分公司,河北廊坊065007 [2]中国石油华北油田公司巴彦勘探开发分公司,内蒙古巴彦淖尔015000

出　　处：《油气井测试》2023年第1期69-73,共5页Well Testing

基　　金：渤海钻探工程有限公司测试分公司科研项目“吉兰泰油田监测方案优化及动态资料综合评价”(CS202203K)。

摘　　要：油气藏储层形态是层状或块状是决定布井、驱油等开发方式的重要依据,而两者的最重要区别是油气藏内部是否存在不渗透隔夹层。常用的地震、测井技术判断方法只能确定是否存在间隔层,无法确定隔夹层是否具有渗透性。利用垂向脉冲干扰试井技术判断隔夹层渗透性的方法是将隔夹层上下之一储层作为监测层,另一储层作为激动层发送脉冲激动信号,通过监测层是否接收到来自激动层的压力响应信号判断两层间的纵向连通性,确定隔夹层是否具有渗透性,最终辅助判断油藏类型。该方法经JH1潜山油藏应用,证实该油藏纵向上存在连通性,储层之间的隔夹层具有渗透性,储层为块状油藏,从而为该油藏采用底部整体注水开发提供了重要依据。The type of oil and gas reservoir is layered or massive,which is an important basis for deciding how to arrange wells and how to drive oil.The most important difference between the two is whether there is an impermeable interlayer in the oil and gas reservoir.The commonly used seismic and logging technology judgment methods can only determine whether there is a interlayer,but cannot determine whether the interlayer is permeable.A method to determine the permeability of the interlayer by using the vertical pulse interference well test technology.One of the upper and lower reservoirs of the interlayer is used as the monitoring layer,and the other reservoir is used as the excited layer to send pulse excited signals.The longitudinal connectivity between the two layers is determined by whether the monitoring layer receives the pressure response signal from the excited layer.So the permeability of the interlayer is determined,and the reservoir type is determined.This method is applied to JH1 buried hill reservoir,which demonstrates that there is connectivity in the Archaeozoic in the vertical direction,and the interlayer between the reservoirs has permeability,which further determines that the reservoir is a massive reservoir.This provides an important basis for determining the bottom integrated water injection development of the reservoir.

关 键 词：垂向干扰试井 脉冲干扰试井 油藏类型 块状油藏 层状油藏 隔层连通性 

分 类 号：TE353[石油与天然气工程—油气田开发工程]