普光气田储层分类综合评价方法研究与应用  

Research and Application of Comprehensive Reservoir Evaluation Method in Puguang Gasfield

作　　者：陈建[1] 王利霞 姜贻伟[1] 靳秀菊[1] 罗霄 宋燕 

机构地区：[1]中石化中原油田分公司勘探开发科学研究院,河南濮阳457001 [2]中石化中原石油工程有限公司地球物理测井公司,河南濮阳457001

出　　处：《石油天然气学报》2014年第5期65-68,5,共4页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2011ZX05017)

摘　　要：普光气田礁滩相储层具有溶蚀孔洞发育、局部裂缝发育、储层孔隙结构比较复杂、非均质性比较强的特点。储层孔隙结构复杂导致了储层分类难度大、精度低等难题。进入开发阶段,前期较粗的地质认识已不能满足开发需要,需要及时跟踪分析和掌握气井生产动态特征,研究不同类型储层的展布特征,评价储层连通状况,为指导气田正常生产管理及调控气井合理产量提供依据。以岩心观察、气井生产动态为基础,结合岩心压汞、铸体薄片分析等资料,利用常规测井资料研究形成了一套针对普光气田礁滩相储层的分类评价方法,即采用渗流特征参数结合比采气指数对储层进行分类评价。该评价结果与生产动态资料符合度高,为明确优质储层分布、气藏动态分析、储量动用状况评价、气井生产管理及合理调整等提供了可靠的地质依据。In Puguang Gasfield,reef beach facies reservoir was characterized by corrosion vug development,local fracture development,complex pore structure and strong heterogeneity in reservoir. The complex reservoir pore structure resulted in problems,such as difficulties in classification and low accuracy. When it was entered into the development stage,the earlier rough geological identification could not meet the needs of development,it was necessary for trace analyzing and understanding the production performance of gas wells,studying the distributive characters of different reservoirs,evaluating reservoir connectivity and providing the basis for guiding field normal production management and adjust and control reasonable production output in gas wells. Based on core observation,gas well production performance,combined with the data mercury injection of cores,casting thin section analysis and conventional logging data,a set of classification evaluation methods were established for complex pore structures of reef beach reservoirs in Puguang Gasfield. Namely,the percolation characteristic parameters were used for classification evaluation combined with gas productivity index. By comparing with production performance data,good effect is achieved. It provides reliable geological basis for defining high quality reservoir distribution,gas reservoir dynamic analysis,the reserves producing status evaluation,gas well production management and reasonable adjustment.

关 键 词：孔隙结构 储层分类 动态分析 

分 类 号：P618.13[天文地球—矿床学]