西安石油大学学报（自然科学版）2018，Vol.33Issue(3)：16-22,36,8.DOI:10.3969/j.issn.1673-064X.2018.03.003
义马地区上古生界页岩气储层特征 及有利目标层优选
Reservoir Characteristics and Favorable Target Layers of Upper Paleozoic Shale Gas in Yima Area
摘要
Abstract
The distribution characteristics of organics-rich shale in Upper Paleozoic in Yima area was studied based on drilling and logging data.The reservoir characteristics of the Upper Paleozoic shale,including mineral composition,pore structure characteristics,permeability and gas-bearing property,were analyzed by means of X-ray diffraction,scanning electron microscopy analysis,porosity and permeability testing to evaluate the hydrocarbon generation conditions of the organics-rich shale layers and optimize the favorable target layers for shale gas.The research shows that there are five sets of organics-rich shale layers in upper Paleozoic formation of the study area, their average thickness is 7.88 ~24.80 m,their brittleness coefficient is 40% ~60%.The nano-microcracks and intergranular and intragranular micro-pores are developed in the shale layers.The average porosity of the shale layers is about 2.2%,the permeability of the organics-rich shale whose depth is less than 1800 m is greater than 0.1 ×10 -3 μm2 ,and their adsorption gas content is 1.15 ~1.84 m3 /t.The Shan 2 member and Shan 1 member -Tai 1member shale layers whose depth is in 600 ~1800 m are selected as the favorable target layers for shale gas.关键词
页岩气/富有机质泥页岩/储层特征/有利目标层/上古生界/义马地区Key words
shale gas/organics-rich shale/reservoir characteristic/favorable target layer/upper Paleozoic/Yima area分类
能源科技引用本文复制引用
司庆红,司马献章,张超,王善博,曲凯,孙卫志,李中明..义马地区上古生界页岩气储层特征 及有利目标层优选[J].西安石油大学学报（自然科学版）,2018,33(3):16-22,36,8.基金项目
中国地质调查局公益性地质调查项目"华北地区页岩气(油气)基础地质调查与潜力评价"(12120114020301) （油气）
华北中南部非常规能源选区研究(1211302108025-3) （1211302108025-3）
