灰色系统理论在国外OLT油田储层精细评价中的应用
Application of Grey System Theory in Reservoir Fine Assessment in the OLT Oilfield
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摘要: OLT油田主力油藏目前含水率80%以上,为了制定科学的开发调整方案,需要对储层进行综合评价.笔者以该油田实际岩心资料、地质资料、生产资料和测井资料为基础,运用灰色系统精细评价技术,对储层岩性、物性以及含油性进行评价.研究中,根据关键井的岩心、地质、试油和动态资料与对应的测井资料相匹配,建立起储层岩性、物性、含油气性灰色评价标准;对非取心井,先计算储层地质参数,再利用上述灰色评价标准进行测井资料综合解释,从而研究了工区的岩性、储集层物性、含油性纵向分布特征,研究结果为油田的下步开发方案的调整奠定了坚实基础.总结出的储层灰色评价参数和标准对相邻地区具有一定的借鉴作用.Abstract: Water content ratio is about 80% in the major reservoirs in the OLT oilfield.For making scientific proposal for exploitation, there is a need for the integrated assessment of reservoirs.On the basis of lithological, geological, production and logging data, the assessment is made about the reservoir lithology and physical properties and oil-bearing with grey system fine technique.The assessment criteria of reservoir lithology, physical properties and oil-bearing properties are established according to the matchup of cores, geology and oil testing with logging data in corresponding wells.For the wells having no cores, the geological parameters of reser voirs are calculated and then use the the criteria and technique of grey system theory to synthetically inter pret the logging data.The results provide a firm foundation for oilfield development in future.Also, The assessment parameters and criteria can be used in other similar oilfields.
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Keywords:
- reservoir assessment /
- grey system /
- assessment parameter /
- assessment criteria /
- OLT oilfield
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