Chemical characteristics of underground water and development performance of fracture-cave units in Tahe Oilfield

doi:10.7623/syxb200804017

Editorial office of ACTA PETROLEI SINICA ›› 2008, Vol. 29 ›› Issue (4): 567-572.DOI: 10.7623/syxb200804017

• Oil Field Development • Previous Articles Next Articles

Chemical characteristics of underground water and development performance of fracture-cave units in Tahe Oilfield

ZHU Rong¹, LOU Zhanghua¹, LU Xinbian², JIN Aimin¹, SU Danyang¹

1. Institute of Hydrology and Water Resource Engineering, Zhejiang University, Hangzhou 310028, China;
2. Northwest Petroleum Bureau, Sinopec New Star Oil Company, Urumqi 830011, China

Received:2007-11-04 Revised:2008-01-10 Online:2008-07-25 Published:2010-05-21

塔河油田缝洞单元地下水化学特征及开发动态

朱蓉¹, 楼章华¹, 鲁新便², 金爱民¹, 苏丹阳¹

1. 浙江大学水文与水资源工程研究所, 浙江杭州, 310028;
2. 中国石化新星石油公司西北石油局, 新疆乌鲁木齐, 830011

作者简介:朱蓉,女,1974年9月生,2007年获浙江大学博士学位,现为浙江大学讲师,主要从事地下流体动力学和流体化学方面的研究.E-mail:zhurong@zju.edu.cn
基金资助:
国家重点基础研究发展规划(973)项目(2005CB422107)"中国海相地下水水文地球化学与油气保存条件研究"部分成果.

Abstract

Abstract: Ordovician carbonate reservoir in Tahe Oilfield is a composite reservoir superimposed by several fracture-cave units and controlled by tectonic-karst cycle.As a basic unit of reservoir,a fracture-cave unit is a relatively independent reservoir.According to the state of water occurrence,formation water can be divided into three types including residual water at the bottom of cave after oil and gas displacement,residual water in fracture and crevice around cave after oil and gas displacement and interlayer water under reservoirs.Hydro-chemical characteristics of fracture-cave unit are related to the connection of caves.Oil wells in fracture-cave unit with good connectivity have similar hydro-chemical characteristics,and oil wells in fracture-cave unit with poor connectivity have different hydro-chemical characteristics.The hydro-chemical characteristics and corresponding development performance of the Ordovician fracture-cave unit were analyzed in Well S48 of Tahe Oilfield.This study can provide some data for production and development of Tahe Oilfield.

Key words: Tahe Oilfield, Ordovician reservoir, fracture-cave unit, cave system, hydro-chemical characteristics, development performance

摘要： 塔河油田奥陶系碳酸盐岩油藏为受控于构造—岩溶旋回作用形成的缝洞系统,是由多个缝洞单元在空间上叠合形成的复合油气藏.储集体的基本单元为缝洞单元,单个缝洞单元为一个相对独立的油气藏.塔河油田奥陶系缝洞单元地层水按其赋存状态可以分为3种类型:洞穴底部油气驱替残留水;洞穴周缘小缝洞系统驱替残留水;储层下部层间水.缝洞单元水化学性质与洞穴间联系程度有关.连通性好的缝洞单元内的井具有相似的地下水化学性质;连通性差或不连通的缝洞单元,地下水化学性质则存在一定差异.以塔河油田奥陶系油藏主要缝洞单元S48井缝洞单元为例,分析了缝洞单元地下水化学性质及开发动态,为油田的开发及稳油控水提供依据.

关键词: 塔河油田, 奥陶系油藏, 缝洞单元, 洞穴系统, 水化学性质, 开发动态

CLC Number:

TE344

ZHU Rong, LOU Zhanghua, LU Xinbian, JIN Aimin, SU Danyang. Chemical characteristics of underground water and development performance of fracture-cave units in Tahe Oilfield[J]. Editorial office of ACTA PETROLEI SINICA, 2008, 29(4): 567-572.

朱蓉, 楼章华, 鲁新便, 金爱民, 苏丹阳. 塔河油田缝洞单元地下水化学特征及开发动态[J]. 石油学报, 2008, 29(4): 567-572.

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Chemical characteristics of underground water and development performance of fracture-cave units in Tahe Oilfield

塔河油田缝洞单元地下水化学特征及开发动态

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