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1、cI|:1000-0747(2007) 06-0702-09d1%yas#N张龙海1, 周灿灿1, 刘国强2, 刘忠华1, 张莉1( 1.中国石油勘探开发研究院; 2.中国石油勘探与生产公司): 中国石油重点科技攻关项目( ktqq-2004-033)K1: 低孔低渗储集层的物性受物源a沉积环境a成岩作用及构造应力等多种因素控制b通过对松辽盆地白垩系a鄂尔多斯盆地二叠系) 三叠系和准噶尔盆地侏罗系三个代表性地区储集层物源a沉积环境a沉积相带和成岩作用的对比,总结了低孔低渗储集层的成因,分析了其成因的不同a储集层物性与孔隙类型的差异及控制因素b据此,将低孔低渗储集层分为 3类:远源型次生粒间溶孔
2、为主的岩屑砂岩低孔低渗储集层a成岩型次生孔+ 原生孔的长石砂岩低孔低渗储集层a近源型粒间孔为主的岩屑砂岩低孔低渗储集层b针对不同类型的低孔低渗储集层提出了测井评价对策,应用效果表明,根据这些对策形成的基于储集层分类的测井评价方法可使低孔低渗储集层的测井解释符合率提高10% 20%b图8表3参251oM: 低孔低渗储集层; 成因; 储集层物性; 测井评价对策ms|:T E122.24 DSM:AOrigin and property differences of various types of low-porosity andlow-permeability reservoirs and we
3、ll logging evaluation strategiesZHANG Long-hai1 , ZH OU Can-can1, LIU Guo-qiang2, LIU Zhong-hua1, ZHANG Li1(1.Research Institute of Petroleum Exp loration & Development, PetroChina, Beij ing 100083, China;2. PetroChinaExploration & Production Comp any, Beij ing 100724, China)Abstract: The properties
4、 of low-porosity and low-permeability reservoirs are controlled by such factors as sedimentarysource, sedimentary environment, diagenesis, structural stress, etc. By comparing the sedimentary sources,environmentsand facies, diagenesis of 3 typical target areas ( Cretaceous of Songliao basin, Permian
5、 to Triassic of Ordos basin andJurassic of Junggar basin), the origin of low porosity and low permeability reservoirs is summarized. Based on the analysisof the differences of the origins, reservoir properties and porous types, and the controlling factors, the reservoirs aredivided into three types:
6、 dista-l lithic sandstone reservoirs with low porosity and low permeability, dominated by secondaryinter-granular dissolved pores; diagenetic arkose sandstone reservoirs with low porosity and low permeability, dominated bysecondary pores and primary pores; proximal lithic sandstone reservoirs with l
7、ow porosity and low permeability, dominatedby inter-granular pores. Well logging strategies are put forward in view of the reservoirs. T he application results indicatethat the interpretation coincidence rate of well logging is increased by 10%-20%.Key words: low-porosity and low- permeability reser
8、voir; origin; reservoir property; well logging evaluation strategy0WF9v12 900a 18 600at,?F30%,70%d?b-,d1%F7?X,WF7?bSd+?d1%,7Ov,y,M,ss 1 ,N,aMTsPtd1%d#,O3?vuY 2-4 ;d1%d,uNZE+O?p,BuadNZE?a6Bub/d1%N08Q,A1d1%NZE?pbYVSdDua4:Ju=):Bu702F 7 ?2007M12 PETROLEUM EXPLORAT ION AND DEVELOPMENT Vol.34 No. 6 3VaaMT
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