天然气地球科学 ›› 2020, Vol. 31 ›› Issue (12): 1766–1778.doi: 10.11764/j.issn.1672-1926.2020.04.009

• 天然气开发 • 上一篇    下一篇

塔里木盆地塔中隆起缝洞型碳酸盐岩油气藏三级描述与效益开发

关宝珠1(),张程2(),李世银1,韩剑发1,赵龙飞1,熊昶1,汪鹏1   

  1. 1.中国石油塔里木油田公司,新疆 库尔勒 841000
    2.中国石油大学(北京),北京 102249
  • 收稿日期:2020-03-23 修回日期:2020-04-04 出版日期:2020-12-10 发布日期:2020-12-11
  • 通讯作者: 张程 E-mail:guanbz-tlm@petrochina.com;693301575@qq.com
  • 作者简介:关宝珠(1985-),男,河南泌阳人,高级工程师,主要从事碳酸盐岩油气藏勘探开发研究. E-mail:guanbz-tlm@petrochina.com.
  • 基金资助:
    中国石油天然气股份公司重大科技专项“缝洞型碳酸盐岩油气藏效益开发关键技术研究与应用”(2018E-1806)

Three-stage reservoir unit description and benefit development of fracture-controlled cave carbonate reservoirs in Tazhong Uplift, Tarim Basin

Bao-zhu GUAN1(),Cheng ZHANG2(),Shi-yin LI1,Jian-fa HAN1,Long-fei ZHAO1,Chang XIONG1,Peng WANG1   

  1. 1.Tarim Oil Field Company,PetroChina,Korla 841000,China
    2.China University of Petroleum(Beijing),Beijing 102249,China
  • Received:2020-03-23 Revised:2020-04-04 Online:2020-12-10 Published:2020-12-11
  • Contact: Cheng ZHANG E-mail:guanbz-tlm@petrochina.com;693301575@qq.com
  • Supported by:
    The Major Special Fund of China National Petroleum Corporation(2018E-1806)

摘要:

针对塔中隆起缝洞型碳酸盐岩油气开发面临开井率低、单井累计产量低、高效井比例低等生产问题,依据高精度三维地震资料开展大型断裂构造解析,深化了北东向深大走滑断裂控储控藏地质认识,创新性形成缝洞型碳酸盐岩油气藏三级描述技术。攻关发现不同断裂带活动强度差异大,油气藏开发特征差异大,同一断裂带可划分为一个开发单元;同一断裂带不同段储层展布、油气性质差异大,分段特征明显,同一段可分为一个地质储量单元;一个地质储量单元内具有同一流体性质、同一油水界面、同一压力系统可分为一个油气藏单元。缝洞型碳酸盐岩油气藏三级精细描述技术创新,强力支撑了井位部署、储量评价及老井治理,推动了缝洞型碳酸盐岩油气藏效益开发。

关键词: 油气藏单元, 储量单元, 开发单元, 缝洞型碳酸盐岩, 效益开发

Abstract:

The development of fracture-controlled cave carbonate reservoirs is faced with the production problems of low well opening rate, low accumulative production per well and low ratio of efficient wells. Based on the high-precision 3D seismic data, the large fault structure analysis is carried out, and the geological understanding of controlling the storage and accumulation of the deep and large strike-slip fault in the northeast direction is deepened, innovating the three-stage description technology for the formation of fractured-cave carbonate reservoirs. It is found that the activity intensity of different fault zones varies greatly and the development characteristics of oil and gas reservoirs vary greatly, the same fault zone can be divided into one development unit. The distribution of reservoirs in different sections of the same fault zone as well as the oil and gas properties are greatly different, the segmented features are obvious, so the same section can be divided into one geological reserve unit. With the same fluid properties, the same oil-water interface and the same pressure system can be divided into an oil-gas reservoir unit in a geological reserve unit. The technical innovation of three-stage fine description of fractured carbonate reservoir strongly supports well location deployment, reserve evaluation and old well treatment, and promotes the effective development of fractured carbonate reservoir.

Key words: Reservoir unit, Geological reserve unit, Developing unit, Fracture-cave carbonate, Effective development

中图分类号: 

  • TE132.1+2

图1

塔中地区区域构造图"

图2

塔中Ⅱ区灰岩顶面相干属性与断裂刻画"

图3

F8走滑断裂相干属性(a)与地震剖面(b)"

图4

塔中Ⅰ号气田F10断裂带油气藏模式"

图5

塔中Ⅰ号气田Ⅱ区开发单元划分(a)及各单元产量直方图(b)"

图6

F8断裂带气油比、单井产量、油气水界面及油气柱高度变化"

图7

F8开发单元地质储量单元划分"

表1

塔中Ⅰ号气田Ⅱ区连通油气藏单元统计"

分类序号连通单元连通类型
证实连通1W43-1,W43分支断裂连通
2W11-H10,W11-H5,W11-H8,W11-6X洞穴连通
3W22,W22-H4,W22-H5裂缝连通
4W8-2X,W11-H15主干断裂连通
5W43-6X,W43-3X分支断裂连通
疑似连通1W102-H1,W102-5X,W102-H2分支断裂连通
2W14-H8,W14-1,W14-H6主干断裂连通

图8

塔中地区缝洞体连通模式"

图9

油气藏单元边界刻画"

图10

W10地质储量单元缝洞体平面特征"

表2

W10地质储量单元缝洞体评价"

层位级别个数距离油源断裂的距离/km雕刻体积/(104 m3)已动用个数剩余个数
良里塔格组Ⅰ类缝洞体9<0.4大于4854
Ⅱ类缝洞体60.4~228~4815
鹰山组鹰一段Ⅰ类缝洞体26<0.4大于481115
Ⅱ类缝洞体100.4~228~4819
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