石油学报 ›› 2004, Vol. 25 ›› Issue (3): 61-65.DOI: 10.7623/syxb200403012

• 油田开发 • 上一篇    下一篇

利用地化参数预测稠油油藏开采难度

赵红静1,2, 张春明1,2, 梅博文1,2, 张敏1,2, 尹太举1   

  1. 1. 油气资源与勘探技术教育部重点实验室, 湖北荆州, 434023;
    2. 长江大学地球化学系, 湖北荆州, 434023
  • 收稿日期:2003-09-29 修回日期:2003-11-20 出版日期:2004-05-25 发布日期:2010-05-21
  • 作者简介:赵红静,女,1973年5月生,1998年获江汉石油学院硕士学位,现为江汉石油学院地化中心讲师,主要从事油藏地球化学和地质微生物学研究.E-mail:zhaodiana@sohu.com
  • 基金资助:
    中国石油天然气集团公司中青年创新基金项目(98J03)"储集岩烃类非均质性研究"和"油藏流体性质地球化学预测新技术"(00Z1304)资助.

Prediction of difficulty for developing heavy oil reservoir with geochemical parameters

ZHAO Hong-jing1,2, ZHANG Chun-ming1,2, MEI Bo-wen1,2, ZHANG Min1,2, YIN Tai-ju1   

  1. 1. Key Laboratory of Exploration Technologies for Oil and Gas Resources, MOE, Jingzhou 434023, China;
    2. Geochemistry Department, Yangtze University, Jingzhou 434023, China
  • Received:2003-09-29 Revised:2003-11-20 Online:2004-05-25 Published:2010-05-21

摘要: 生物降解原油的粘度与生物降解程度相关,而原油中生物标志物的分布则随生物降解程度的不同而有差异.原油粘度与原油中饱和烃含量呈负相关,与极性化合物浓度呈正相关;与w(Pr+Ph)/w(nC17+nC18)值呈正相关,与w(Pr+Ph)/w(C30藿烷)值呈负相关.原油粘度与w(Pr+Ph)/w(胡萝卜烷)值关系也很密切.利用相应地化参数可预测原油粘度,并进而初步预测原油开采难度.对辽河油田冷43块S32段6个油组的预测结果表明,原油粘度随埋深增加而升高,在油水界面附近达到最高值.该油藏的开采难度具有与之相似的特征.

关键词: 稠油油藏, 生物标志物, 生物降解, 原油粘度, 预测, 开采评价, 地化参数

Abstract: The viscosity of biodegraded oil is highly correlated to biodegradation degree. The distribution of some biomarkers in oil varies with the different biodegradation degrees.Oil viscosity in negatively correlated to saturated hydrocarbon concentration in oil and w(Pr+Ph)-to-w(C30hopane)ratio,and it is also positively correlated to polar compounds'concentration and w(Pr+Ph)-to-w(nC17+nC18) ratio.In addition,oil viscosity has close correlation withw(Pr+Ph)-to-w(carotene) ratio.Those geochemical parameters can be used to predict oil viscosity and thus to preliminarily evaluate oil production ifficulty.The predicted resuls from six sand bodies of second member of Sha-3 in Leng-43 block of Liaohe Oilfield show that the viscosity of oil increase with well depth and reaches the highest value near oil-water contact.The distribution of production difficulty in this reservoir is similar to the distribution of oil viscosity.

Key words: heavy oil reservoir, biomarkers, biodegradation, oil viscosity, prediction, production difficulty evaluation, geochemical parameter

中图分类号: