论文中文题名: | HSS 油田 H1油层储层评价 |
姓名: | |
学号: | 200911547 |
保密级别: | 公开 |
学科代码: | 081801 |
学科名称: | 矿产普查与勘探 |
学生类型: | 硕士 |
学位年度: | 2012 |
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专业: | |
第一导师姓名: | |
论文外文题名: | The Formation Evaluation of H1 oil Set in HSS Oil Field |
论文中文关键词: | |
论文外文关键词: | HSS oil field H1 oil reservoir low porosity and low permeability formation |
论文中文摘要: |
HSS油田位于准噶尔盆地东部隆起的西北部,H1油层组属于二叠系平地泉组上部,探明含油面积23.2km2。本论文以储层精细描述为核心,应用多学科知识,研究该区地层特征、进行地层划分与对比,以及沉积微相、物性特征及油层的非均质性特征研究,并对H1层进行综合评价,为该区以后的勘探开发提供可靠的理论依据。
H1层地层厚度变化符合区域变化特征,由北向南规律性减薄,其内部分布着5个在油田范围内可追踪对比的标志层,根据这5个标志层将H1层自下而上划分为H11、H12、H13共3个砂层组,进一步细分为7个单砂层。将H11分为H11-1、H11-2两个小层,将H12分为H12-1、H12-2、H12-3三个小层,将H13分为H13-1、H13-2两个小层。
根据自然伽马和电阻率测井曲线特征,建立了研究区测井相模式,微相划分出识别出三角洲前缘水道砂、三角洲前缘河口坝、三角洲前缘席状砂、三角洲前缘水道间沉积以及滨浅湖亚相。在单井沉积微相分析的基础上研究了同一时期不同微相平面分布,H1油层组从H13砂层到H11砂层,沉积环境从滨浅湖沉积—三角洲前缘沉积—滨浅湖沉积—三角洲前缘沉积—滨浅湖沉积。
HSS油田H1油层组储层岩性主要为浅灰色细砂岩,其次为少量的中砂岩和粉砂岩。成岩作用主要发生了压实作用、压溶作用、胶结作用。H1油层组孔隙度为4~20%;渗透率分布在0.003~400×10-3μm2。通过储层层内,层间,平面非均质性研究,认为油气分布在纵向上和平面上均存在程度不等的不均衡性。对H1储层进行了分类评价,研究表明,该区储层总体上属于中孔特低渗储层。
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论文外文摘要: |
HSS field is located in the northwest in Zhungeer Basin. H1 oil set is about 23.2 km2 in the Permian Pingdiquan group.My paper is aimed to research H1 reservoir of the exploration area, using multidisciplinary knowledge, especially the method of fine reservoir description, studied the fine sedimentary facies, diagenesis, physical property characteristic and reservoir heterogeneity, have been researched evaluated of H1 reservoir, provided a reliable theoretical basis to the continued development.
Strata thickness of H1 reservoir subject to regional variation, thinning regularitily from north to south, there are 5 marker beds in the range of oil field. According to the marker beds, the H1 oil reservoir is divided into three sub-groups,H11,H12, H13, Further divided into 7 small layer. H11 sub-group is subdivided into H11-1, H11-2 two small layer, and H12 sub-group is subdivided into H12-1, H12-2,H12-3 three small layer, H13 sub-group is subdivided into H13-1, H13-2 two small layer.
Under natural gamma ray and resistivity logging curves, study on logging mode, identify delta front, delta front mouth bar, delta front sheet sand, shallow lake deposition. On the basis of the sedimentary microfacies of single well, from H13 sub-group to H11sub-group, sedimentary environments are shallow lake sedimentary, delta front sedimentary, shallow lake sedimentary, delta front sedimentary, shallow lake sedimentary.
The rock types of the reservoir consists mostly of light gray fine sand, followed by a small number of sandstone and Siltstone. Diagenesis mainly ranged from compaction, Pressure solution ,cementation. Average porosity of reservoir is 4%~20%, average permeability is -0.003~400×10-3μm2. By reservoir heterogeneity study found that the oil and gas distribution in both vertical plane and horizontal plane exist in varying degrees of imbalance; classifying and evaluating the H1 reservoir comes to the conclusion that the main part of H1 reservoir belongs to the low permeability.
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中图分类号: | P618.130.2 |
开放日期: | 2012-06-09 |