CAJ | 학술논문

油藏启动压力梯度对油藏的储层动用有着很大的影响，启动压力梯度越大储层越难动用。从低渗透油藏流体渗流机理上出发，采用现场早期束缚水条件下单相渗流的生产动态数据及试井解释资料，利用试井方法求得研究区的启动压力梯度，并建立启动压力梯度与渗透率的关系。分析典型反九点井组内注水井与采油井井间的驱动压力梯度变化特点，据此确定井间储层物性与储量动用关系。通过对比实际储层的渗透率值与所得到的储层流体启动所需渗透率值的大小，从而判断储层内流体是否流动。该方法采用定量分析低渗透油藏井间储量动用状况，为同类油藏确定井间剩余油分布提供了参考。
유장계동압력제도대유장적저층동용유착흔대적영향，계동압력제도월대저층월난동용。종저삼투유장류체삼류궤리상출발，채용현장조기속박수조건하단상삼류적생산동태수거급시정해석자료，이용시정방법구득연구구적계동압력제도，병건립계동압력제도여삼투솔적관계。분석전형반구점정조내주수정여채유정정간적구동압력제도변화특점，거차학정정간저층물성여저량동용관계。통과대비실제저층적삼투솔치여소득도적저층류체계동소수삼투솔치적대소，종이판단저층내류체시부류동。해방법채용정량분석저삼투유장정간저량동용상황，위동류유장학정정간잉여유분포제공료삼고。
The existence of start-up pressure gradient of reservoir has a great impact on the reservoir producing extent,the bigger the start-up pressure gradient,the poor the the reservoir producing extent. Based on the mechanism of fluid flow from the low permeability reservoir,the relationship between the start-up pressure gradient and permeability relationship of the study area were established by the in-situ early bound water production performance of single-phase data and well test material and well test method. we also analyze a typical well group pressure driven between the injection wells and production wells gradient features. By comparing values of reservoir permeability and reservoir fluid permeability values corresponding to the size,we determine whether the fluid within the reservoir may flow. This quantitative analysis of low permeability reservoir interwell reserves producing condition provides the reference for determining interwell residual oil distribution provides of similar reservoir.