新疆石油地质

新疆石油地质 ›› 2010, Vol. 31 ›› Issue (4): 341-343.

• 油气勘探 • 上一篇    下一篇

沥青充填对储集层储集性能的影响——以准噶尔盆地三台—北三台为例

陈世加, 杨国平, 路俊刚, 陆林超, 陈雪   

  1. 西南石油大学 资源与环境学院,成都 610500
  • 收稿日期:2010-01-18 修回日期:2010-01-18 发布日期:2020-10-19
  • 作者简介:陈世加(1964-),男,广东大埔人,教授,博士,油气地质,(Tel)13880948696(E-mail)CHENsj1964@sina.com.
  • 基金资助:
    国家973项目(2006CB202305);CNPC中青年创新基金项目(04E7046)

Impact of Pack Bitumen on Reservoir Quality—An example from Santai-North Santai in Junggar basin

CHEN Shi-jia, YANG Guo-ping, LU Jun-gang, LU Lin-chao, CHEN Xue   

  1. Southwest Petroleum University, CHENgdu, Sichuan 610500, China
  • Received:2010-01-18 Revised:2010-01-18 Published:2020-10-19

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摘要： 在三台—北三台地区三叠系和侏罗系储集层中发现大量高密度的稠油和沥青,它们充填于储集层的孔隙中,占据了大孔隙,降低了孔隙连通率,使后期生成的原油难以进入孔隙,难以形成规模较大和产量较高的油藏。有机溶剂抽提前后的物性对比实验表明,沥青对储集层物性有很大影响,9 个样品的孔隙度测定值最大增加21.5%,平均增加约13.4%,7 个样品的渗透率测定值最大增加121.50×10-3μm2,平均增加约31.99×10-3μm2. 指出今后寻找高产油层,除考虑构造因素外,还应结合沉积相和储集层的研究成果,尽量避开含沥青较多的储集层。

关键词: 准噶尔盆地, 东部, 三台—北三台, 储集层, 沥青, 物性

Abstract: A large amount of bitumen and heavy oil with high density are found in the Triassic and Jurassic reservoirs in Santai-North Santai area in eastern Junggar basin. They filled into the reservoir pores, occupied the megapores, reduced the porous connection rate, caused the post-generating crude oil to enter the pores with difficulty, hence it is difficult to form larger-scale and higher-yielding oil reservoir. The reservoir property contrast between before and after the organic solvent extraction indicates that the porosity of 9 samples adds to 21.5%, averaging about 13.4%; the permeability of 7 samples adds to 121.50×10-3μm2, averaging about 31.99×10-3μm2. It is pointed out that it should keep away from the reservoir with high amount of bitumen as far as possible to find high-yielding oil reservoirs in the future, in addition to considering structural factors, integrated with sedimentary facies and reservoir research results.

Key words: Junggar basin, eastern Junggar basin, Santai-North Santai area, Reservoir, bitumen, petrophysical property

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