高凝油藏水淹层精细评价的分析处理方法

Evaluation Parameters and Criterion for Waterflooded Formation Logging of High-freezing Reservoir

针对辽河沈 84块沙三段高含水期高凝油藏储层水淹状况和特征 ,依据灰色系统油田开发分析方法及准则 ,利用测井、钻井取心、试油及有关地质资料 ,匹配、拟合和提取参数 ,分别以其特征性参数对高含水期油藏岩性、物性和水淹状况进行统计 ,提出和建立了精细评价高凝油藏水淹层的参数、标准、权系数和解释系统。通过该区沙三下 174口井水淹层的精细评价处理 ,阐明了区块沙三下高凝油藏水淹状况及剩余油纵向分布规律。还给出了该方法、软件的主要处理和实际应用的例子。

Aimed at waterflooded condition and property of high-freezing reservoir at high water cut stage in the lower Sha-3 Segment(S 4_3 ), Block Shen-84,Liaohe Oilfield,and based on gray system oilfield development analysis ways and principles,the reservoir lithologic characteriistics,physical property and waterflooded condition at high cut stage are counted according to different representative parameters,and the evaluation parameters,criterion and weight coefficients for fine evaluation of waterflooded formation in high-freezing reservoir are advanced and established, through well logging, core analysis,production test and correlative geologic data to match,imitate and pick up parameters. By the fine evaluation and processing of waterflooded formation of 174 wells in this area, the waterflooded condition and vertical distribution regularity of remaining oil of Sha-3 Segment high-freezing reservoir in Block Shen-84 are clarfied.