PL 油田调整井合理生产厚度预测新方法

PL 油田含油井段长，单井钻遇厚度大，目前采用一套井网开发，处于中高含水期，面临着综合开发调整。应用油田相渗数据和原油高压物性资料，绘制不同粘度下无因次采油指数与含水率关系图版，将油田近年来调整井初期含水米采油指数校正到含水为0时米采油指数。在此基础上，回归生产厚度与无水米采油指数的关系，利用油田研究的合理生产压差结果预测不同生产厚度下油井初期产量，确定合理的生产厚度，为油田的分层系开发调整和调整井的射孔方案提供依据。

The new method of predicting reasonable production thickness of the adjustment wells in PL Oilfield

PL Oilfield adopts one development well pattern.Due to the long hydrocarbon bearing interval,big single well drilling case thickness and medium -high water cut,PL Oilfield is confronted with comprehensive adjustment.Demonstration of reasonable production thickness This article applied relative permeability data and high pressure physical property of crude oil phase to protract dimensionless productivity index and water cut plate under different fluid viscosity.Then adjust contai-ning water specific productivity index in initial stage to water -free specific productivity index.On this base the empirical ex-pression of production thickness and water -free specific productivity index is established.Reasonable production thickness is determined by predicting production of different production thickness under the given reasonable drawdown pressure,which provides the basis to divided series of strata development and perforation program of adjustment wells.