The Reservoir Characteristics and Its Main Controlling Factor Discussion in Ziniquanzi Formation of Huomatu Tectonic Zone, Southern Junggar Fold-Thrust Belt
详细信息
- 责任者：Bai Zhenhua (China University of Petroleum ; Beijing 102249 ; China) ; Jiang Zhenxue
- 刊名：Natural Gas Geoscience
- 出版年：2013
- 卷期：24(2)
- 关键词：砂岩储集层 ; sandstone reservoirs ; 储层性质 ; reservoir properties ; 准噶尔盆地 ; Junggar Basin
- 页码：p.273-281
- 图表：illus., 27 refs.
- 分类号：1003
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
Oil and gas exploration and evaluation results show that the complexity of reservoir characteristics is another important factor beside of the complex tectonic deformation and style,which controlled the oil and gas accumulation and distribution of Huomatu tectonic zone in Southern Junggar fold-thrust belt.Based on the depositional facies and petrologic characteristics,combined with the results of conventional thin section,SEM,mercury injection test,reservoir characteristics of the Paleocene Ziniquanzi Formation in Huomatu tectonic zone were analyzed.The results suggest that the E1-2z3 reservoir is mainly composed of fine sandstone and siltstone with small grain size.Because of the controlling factor of both sedimentation and diagenesis,physical property differences exist in the three anticlines of Huomatu tectonic belt.The Manasi anticline reservoir has the best physical property,and the distribution of porosity and permeability appears"after peak type".The porosity and permeability mainly concentrate in the range of 21% to 26% and 40×10-3μm2 to 640×10-3μm2 respectively,so the E1-2z3 reservoir quality in Manasi anticline is moderate-high porosity and permeability the Huoerguosi anticline reservoir has medium physical property,and the porosity and permeability distribution presents a "double peaks type" with the porosity mainly concentrating in the range of 5% to 9% and 12% to 20% and permeability of 0.16×10-3μm2 to 0.64×10-3μm2 and 1.25×10-3μm2 to 20×10-3μm2.While the Tugulu anticline reservoir has the worst physical property and the similar porosity distribution with Huoerguosi anticline,whereas,the permeability distribution is characterized by "front peak type" with the peak between 0.16×10-3μm2 and 0.32×10-3μm2.Consequently,the E1-2z3 reservoir qualities in these two anticlines are moderate porosity and moderate-low permeability generally.
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