新疆石油地质

新疆石油地质 ›› 2010, Vol. 31 ›› Issue (4): 379-381.

• 油气勘探 • 上一篇    下一篇

缝洞型碳酸盐岩油藏致密隔层分布研究

赵敏1, 侯朝晖2, 刘莉1   

  1. 1.中国石化 西北油田分公司 勘探开发研究院,乌鲁木齐 830011;
    2.中国石化 西北油田分公司 塔河采油二厂,新疆 轮台 841604
  • 收稿日期:2010-03-24 发布日期:2020-10-19
  • 作者简介:赵敏(1982-),女,湖南湘乡人,硕士,工程师,石油地质,(Tel)0991-3160931(E-mail)sinopec_zm@163.com.
  • 基金资助:
    国家重大专项(2008ZX05049-05)

Dense Limestone Barrier Distribution of Fractured-Vuggy Carbonate Reservoirs

ZHAO Min1, HOU Chaohui2, LIU Li1   

  1. 1. Research Institute of Exploration and Development, Northwest Oilfield Company, Sinopec, Urumqi, Xinjiang 830011, China;
    2. Tahe No. 2 Oil Production Plant, Northwest Oilfild Company, Sinopec, Luntai, Xinjiang 841604, China
  • Received:2010-03-24 Published:2020-10-19

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摘要： 塔河油田奥陶系油藏储集层非均质性严重,油气水关系及油藏类型复杂。前期对此类油藏的三维地质建模强调定量表征300 m 范围内风化壳中发育的溶蚀洞穴、孔、缝的储集空间。然而随着塔河油田开发的不断深入,认识到纵向上几套缝洞型储集层间存在具一定封隔作用的致密灰岩段。综合应用储集层地质认识、测井、地震、单井生产动态资料,开展单井致密段及井间致密隔层对比研究,并在此基础上尝试建立了致密隔层三维分布模型,对评价储集层段横向连通性起到了积极作用,也为油藏注水方式、堵水措施及层段的选择提供了指导依据。

关键词: 塔河油田, 碳酸盐岩油气藏, 缝洞型油藏, 致密隔层, 测井识别, 储集层建模

Abstract: Tahe field is characterized by strong heterogeneity of the Ordovician carbonate reservoirs, complicated oil-gas-water relationship and complex reservoir type. The 3D geologic modeling has shown quantitative characterization of the pore, vug and fracture of the weathering crust within 300 m in the reservoir. But with in-depth development of Tahe field, it has been suggested there exist vertical dense limestone segments that play a role of barriers among the fractured-vuggy carbonate reservoirs. This paper conducts the correlation researches on well dense segment and interwell dense barriers by means of related geologic cognition and well logging, seismic and well performance data, by which the 3D model for dense limestone barrier is developed. This model can be helpful for evaluating the lateral connectivity of reservoirs and selecting the waterflood pattern, water shutoff measure and blocking interval.

Key words: fractured-vuggy reservoir, dense barrier, logging identification, reservoir modeling

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