西南石油大学学报(自然科学版)

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塔河油田堵水选井选层因素分析及方法探讨

秦飞,吴文明,杨建清,刘广燕,何龙   

  1. 中国石化西北油田分公司工程技术研究院,新疆乌鲁木齐830011
  • 出版日期:2013-12-01 发布日期:2013-12-01

Methodological Discussion and Factor Analysis on Choosing Wells and
Layers for Water Plugging in Tahe Oilfield

Qin Fei, Wu Wenming, Yang Jianqing, Liu Guangyan, He Long   

  1. Research Institute of Engineering Technology,Northwest Branch,SINOPEC,Urumqi 830011,China
  • Online:2013-12-01 Published:2013-12-01

摘要:

塔河油田是典型的缝洞型碳酸盐岩油藏,油藏非均质性强且底水活跃。由于前期开采强度较大,水淹、水锥、
水窜现象日益严重,关井、缩嘴、注水压锥方式已不同程度失效,堵水逐步成为油田稳油控水的主要方式。作为堵水的
第一步,选井选层直接关系到油井堵水的效果,是堵水获得成功的前提。结合塔河油田堵水的具体实践,从地质、开
发、工程工艺3 方面总结了堵水选井选层的主要影响因素,并对五项基础综合分析法、权重分析法、神经网络法选井作
了一定的对比分析,进而提出了系统选井法的理论。所总结的因素和方法对塔河碳酸盐岩油藏的堵水工艺发展有重
要的指导作用,适用于同类油藏。

关键词: 塔河油田, 堵水, 选井选层, 因素, 方法

Abstract:

Tahe Oilfield is typical fractured-vuggy carbonate reservoir,which is seriously inhomogeneous and has active bottom
water. Because of the high development rate early,water flooding,water coning and water channeling gradually worsen. Well
shutin,narrow nozzle and water injection for coning control are failure at some degree,so water plugging is becoming the
main method for stabilizing oil production and controlling water cut. As the first step,choosing wells and layers is directly
relative to effect of water plugging,therefore,it′s precondition of success when water plugging. This paper summarizes some
significant factors from aspects of geology,development,engineering and technology when choosing wells and layers for
water plugging,combing with specific practice of water plugging in Tahe Oilfield. Then we make a comparison among for
comprehensive analysis using five kind of basic information,weight analysis and artificial neural network,and finally put
forward the theory of systematical well choosing. These factors and means have an important meaning for water plugging in
carbonate reservoir of Tahe Oilfield,which is also suitable for the similar reservoir.

Key words: Tahe Oilfield, water plugging, choosing wells and layers, factors, methods