新民油田水淹特征分析

本文从测井专业的角度,对新民油田水淹特征进行了系统的分析。主要应用完井电测和注水井同位素吸水剖面资料,同时结合油水井动态资料,通过理论分析和实际检验,研究和总结出新民油田水淹特征为宏观水驱方向为东西向;微观水淹油层具有非均质性;断层遮挡对水驱影响很大,断层附近往往有注入水波及不到的死油区;新民油田尚处于弱水淹期,储集层电性变化不明显;新民油田水淹层电阻率变化主要是由于含水饱和度变化引起的,注入水矿化度对其影响较小。本文对新民油田水淹层的测井解释具有指导意义,从而为新民油田科学合理的调整开发提供可靠参考依据。

FLOODING CHARACTERISTIC ANALYSIS OF XINMING OILFIELD

This paper analyzes the flooding characteristics of Xinming oilfield in the sight of well logging. With well completion logging data and isotope water injection profile data as well as the dynamic data of oil-water wells, through theoretical analysis and practical test, the flooding characteristics of Xinming oilfield are studied and summarized as following: the macroscopic water driving direction is east-west;the microcosmic waterflooded zone has heterogeneity;fault barriers have a large effect on water driving, and there is an inert area which the water wave cannot get to near the faultage;Xinming oilfield is in a poor flooding stage, electrical properties of the reservoir do not change in evidence;the variation of the flooding resistivity is caused by the variation of water saturation, the injection water salinity has little effect on it. This paper is of significance to the well logging interpretation of water-flooded zones in Xinming oilfield. Thus it supplies reliable reference gists for scientific and reasonable adjustment to the oilfield development.