Characteristics and Controlling Factors of Lower Shihezi Sandstone Reservoir in Kongnan Area of Huanghua Depression
详细信息
- 责任者：Zhu Xinzheng (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Li Yong
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2011
- 卷期：18(3)
- 关键词：砂岩储集层 ; sandstone reservoirs ; 成岩作用 ; diagenesis ; 黄骅坳陷 ; Huanghua Depression
- 页码：p.308-311
- 图表：illus., 2 tables, 12 refs.
- 分类号：1003
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
The Lower Shihezi sandstone reservoirs are favorable areas in which the Paleozoic oil can be found in Kongnan Area of Huanghua Depression.According to the laboratory data of thin-section,cast thin-section,X-ray diffraction,vitrinite reflectance and capillary pressure,this paper analyzed the lithologic features,physical property and pore structure,and evaluated the influence factors.Study shows that the Lower Shihezi sandstone reservoirs in study area are low permeability and porosity reservoirs.The permeability and porosity have a good relation,and the connectivity of reservoir pore is good,belonging to pore-type reservoir.In the period of late diagenesis,the cuttings,interstitial content,feldspar particles and kaolinite experienced dissolution,forming a lot of secondary pores,which greatly improved the reservoir physical property.The sedimentary facies,cementation and dissolution were the main factors of controlling reservoir development.