结合沉积成藏规律实现葡萄花疑难层测井解释  

LOGGING INTEPRETATION OF THE DIFFICULT PUTAOHUA RESERVOIRS INTEGRATED WITH THE SEDIMENTARY AND ACCUMULATING LAWS

作　　者：张美玲[1] 吕鑫淼[1] 张士奇 

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318 [2]庆新油田开发有限责任公司,黑龙江大庆163403

出　　处：《大庆石油地质与开发》2016年第1期140-144,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家自然科学基金项目"基于物模的井震联合反演技术"(41274132)

摘　　要：测井综合评价中,常以电阻率测量值的高低来反映岩层的含油饱和程度,以孔隙度测井值来反映岩层的储集能力。由于沉积成藏条件复杂,部分岩层测井评价存在困难,具体归纳为"低阻油层"、"高阻水层"两种情况。弱水动力的低能量沉积环境、辅以较高的地层水矿化度形成"低阻油层";而油气运移"路过"的部分岩层,孔隙内残余原油氧化后致使流体导电能力降低,形成"高阻水层"。以卫星油田葡萄花油层为例,在沉积微相、油气运移成藏规律基础上,分析总结复杂油水分布特征,将电阻率、孔隙度、断层、岩层到葡顶的距离、砂体展布情况等诸要素联系起来,建立综合识别方法,有效提高了这两类疑难储层的测井评价精度。In the comprehensive evaluation of well logging, the levels of the measured resistivity are always adopt- ed to reflect the degree of the oil saturation in the reservoirs, and moreover the tested porosity logging values are u- sually used to display the capacity of the reservoir accumulation. Because of the complexity of the sedimentary and accumulation conditions, the well logging evaluation of some complicate formations is rather difficult. In detail, these problems can be specifically induced into the following two aspects： low-resistance oil layers and high-resist- ance water layers. The former is resulted from the low-energy sedimentary environment with weak water power and high-salinity formation water; the latter is formed by the reduction of the weak conductive ability in tile fluids due to the oxidization of the residual crude oil in the pores of the partial formations penetrated by the hydrocarbon migra- tion. Taking Putaohua oil reservoirs of Weixing Oilfield as an example, on the bases of the sedimentary micro-facie- ses and accumulating laws, through analyzing and summarizing the distribution characteristics of the complex oil and water, the following key factors are integrated ： resistivity, porosity, faults, distances of the formation to the top of Putaohua oil reservoirs, sandstone spread conditions and method is established, thus the precisions of the well logging enhanced. so forth, and furthermore the combined recognizing evaluation for above two difficult reservoirs are greatly

关 键 词：高阻水层 低阻油层 测井评价 沉积 成藏规律 葡萄花油藏 

分 类 号：P631.8[天文地球—地质矿产勘探]