挤压盆地中单斜构造带岩性油藏成藏特征——以柴达木盆地西部地区红柳泉油田为例  

The oil and gas accumulation mode of monoclinal structure lithologic reservoir in compressional basin:A case of Hongliuquan area,Western Qaidam Basin

作　　者：畅斌[1] 张金功[1] 尹成明[2,3] 黄传卿[1] 龚建洛[1] 康伟伟 黎宁 

机构地区：[1]西北大学大陆动力学国家重点实验室/地质学系,陕西西安710069 [2]中国地质科学院页岩油气调查评价重点实验室,北京100081 [3]中国地质科学院地质力学研究所,北京100081 [4]中国石油集团测井有限公司青海事业部,甘肃敦煌736202 [5]中国石油青海油田边远油田开发公司,青海海西州816400

出　　处：《西北大学学报（自然科学版）》2013年第2期247-252,共6页Journal of Northwest University（Natural Science Edition）

基　　金：国家油气专项基金资助项目(XQ-2004-01)

摘　　要：目的探讨红柳泉单斜构造砂岩透镜体油藏成藏模式,为地质勘探提供依据。方法对研究区28口井的岩心进行观察,并对样品物性进行分析对比。结果红柳泉砂岩透镜体油藏中的裂缝类型主要包括平行层面裂缝、低角度斜向缝及垂直层面裂缝。垂直层面裂缝一般不穿平行层面裂缝,二者整体构成"工"型裂缝组合;发育裂缝样品的渗透率比无裂缝样品高,发育裂缝样品的渗透率介于(87.3～46 550)×10-3μm2,不发育裂缝的样品渗透率介于(0.004 1～2.19)×10-3μm2。结论挤压盆地中单斜构造带岩性油藏油气的运移受油气运移的动力和砂泥岩输导性的控制,平行层面方向是主要的运移方向,侧向供烃范围决定着油气的富集程度;盆地收缩对油气运移有重要影响。Aim To discuss the forming of lithologic reservoir, Hongliuquan Oilfield, provide a basis for geological exploration. Methods Core observation, comparison of porosity and permeability. Results There are parallel crack, vertical crack and oblique crack in rocks, vertical cracks don＇t cross the parallel cracks. The main kind of fracture is ＂horizontal H＂ assemblage type. Permeability of the fractured sample is between（87.3～46550）×10^-1μm^2, permeability of no-crack sample is between （0.0041～2.19）×10^-3μm^2. Conclusion Migration is con- trolled by the power of hydrocarbon migration and physical properties of rocks. Parallel level is the main migration direction for hydrocarbon, the lateral range determines the enrichment degree of the oil and gas. Basin contraction has an important influence on the oil and gas migration.

关 键 词：单斜构造带 岩性油藏 柴达木盆地 红柳泉 

分 类 号：P618.130.2[天文地球—矿床学]