石油勘探与开发 >

2021 , Vol. 48 >Issue 2: 314 - 325

DOI: https://doi.org/10.11698/PED.2021.02.08

油气勘探

塔河油田托甫台区奥陶系断溶体层级类型及表征方法

  • 张文彪 ,
  • 段太忠 ,
  • 李蒙 ,
  • 赵华伟 ,
  • 商晓飞 ,
  • 汪彦
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  • 1.中国石化石油勘探开发研究院,北京 100083;
    2.中国石化西北油田分公司,乌鲁木齐 830011
张文彪（1984-）,男,河北廊坊人,硕士,中国石油化工股份有限公司石油勘探开发研究院高级工程师,主要从事油气田开发地质综合研究。地址：北京市海淀区北四环中路奥运大厦,中国石油化工股份有限公司石油勘探开发研究院,邮政编码：100083。E-mail: zwb.syky@sinopec.com

收稿日期: 2020-02-17

  修回日期: 2021-02-20

  网络出版日期: 2021-03-19

基金资助

中国科学院战略先导A项目子课题“深层碳酸盐岩油气储层地质建模”（XDA14010204）; 中国石化科技部项目“塔河深层断溶体油藏精细描述与开发优化”（P18042）; 国家重大专项“复杂油气藏定量表征技术”（2016ZX05033-003）

收起

Architecture characterization of Ordovician fault-controlled paleokarst carbonate reservoirs in Tuoputai, Tahe oilfield, Tarim Basin, NW China

  • ZHANG Wenbiao ,
  • DUAN Taizhong ,
  • LI Meng ,
  • ZHAO Huawei ,
  • SHANG Xiaofei ,
  • WANG Yan
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  • 1. Petroleum Exploration and Production Research Institute, Sinopec, Beijing 100083, China;
    2. Northwest Oilfield Company, Sinopec, Urumchi 830011, China

Received date: 2020-02-17

  Revised date: 2021-02-20

  Online published: 2021-03-19

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摘要

基于野外露头、岩心、测井、录井、地震、生产动态等资料,结合断溶体地质成因,对塔河油田托甫台区奥陶系断溶体层级类型及表征方法进行研究。按照成因地质体的概念将断溶体划分为4个层级构型单元,走滑断裂影响带为第1层级单元,断溶体为第2层级构型单元,断溶体内部缝洞带为第3层级构型单元（构型要素可进一步划分为溶蚀洞穴、溶蚀孔洞带、裂缝密集带）,洞内充填为第4层级构型单元（构型要素可根据充填程度及充填岩性进行细分）。针对断溶体构型层级逐级开展表征,基于地震相干及人工精细解释表征走滑断裂影响带,在走滑断裂影响带约束下基于FL（Fault Likelihood）属性刻画断溶体外部轮廓,外部几何形态约束下基于地震Texture属性进行内部结构划分,基于岩心、测录井综合解释洞穴充填样式。研究初步实现了断溶体三维空间立体解剖,形成了基于井震结合的断溶体构型表征技术,对塔河断溶体油藏开发理论及技术方法具有补充作用。图8表1参43

关键词： 断溶体; 构型表征; 走滑断裂; 塔河油田; 奥陶系

本文引用格式

张文彪 , 段太忠 , 李蒙 , 赵华伟 , 商晓飞 , 汪彦 . 塔河油田托甫台区奥陶系断溶体层级类型及表征方法[J]. 石油勘探与开发, 2021 , 48(2) : 314 -325 . DOI: 10.11698/PED.2021.02.08

Abstract

Based on outcrop, core, logging, seismic and production data, and the formation of fault-controlled karst reservoirs, the types and characterization of Ordovician fault-controlled karst reservoir architectures in the Tuoputai area of the Tahe oilfield are studied. According to the concept of genetic geologic body, the fault-controlled karst reservoir is divided into architecture elements of four levels, the strike-slip fault impacting zone is the level-1 architecture element, the fault-controlled karst reservoir the level-2 architecture element, the fracture-cave zone (which can be further subdivided into dissolution cave, dissolution pore and vug, and fracture zones) inside the fault-controlled karst reservoir the level-3 architecture element, and fillings inside caves is the level-4 architecture element (which can be further divided based on the filling degree and lithologic types of the fillings). Specific characterization techniques have been optimized according to the characteristics of various architecture elements. The zone impacted by strike-slip fault is characterized by seismic coherence and artificial interpretation. Under the constraint of zone impacted by strike-slip fault, fault likelihood (FL) property is used to characterize the outline of fault-controlled karst reservoir. Under the constraint of fault-controlled karst reservoir outline, the internal structures are divided based on seismic texture attribute. Finally, the cavern filling pattern is interpreted based on drilling and logging data. The fault-controlled karst reservoirs can be interpreted in 3-dimensional space by architecture element levels, and the characterization technology combining log and seismic data for fault-controlled karst reservoir has been worked out, which has complemented the development theory and technologies for this kind of reservoirs in the Tahe oilfield.

Key words： fault-controlled karst reservoir; architecture characterization; strike-slip fault; Tahe oilfield; Ordovician

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