新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (3): 301-304.

• 油藏工程 • 上一篇    下一篇

储集层相对渗透率曲线形态及开采特征

王国先, 谢建勇, 李建良, 谭文东, 杜军社, 王惠清, 万文胜   

  1. 中国石油新疆油田分公司准东采油厂研究所,新疆阜康831511
  • 收稿日期:2003-08-19 发布日期:2020-09-18
  • 作者简介:王国先(1956-).男，山西武乡人，高级工程师，油气田开发。联系电话:0994-3831827。

On Relative Permeability Curves and Production Characteristics of Reservoirs

WANG Guo-xian, XIE Jian-yong, WAN Wen-sheng, SHI Yan, LIU Yan-hong, LIU Bao-zben, NAN Hui   

  1. Institute of Jundong Production Plant, Xinjiang Oilfield Company, PetroChina, Fukang, Xinjiang 831511, China
  • Received:2003-08-19 Published:2020-09-18

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摘要： 不同形态油水相对渗透率曲线反映了在水驱开发过程中油藏储集层孔隙结构的变化，也反映了油水分布状态,以及油水运动规律与开采特征。虽然油水相对渗透率曲线形态千变万化,但根据油田实际资料大致可划分为五类，即水相上凹型、水相直线型、水相下凹型、水相上凸型和水相靠椅型。各类曲线形态差异大,特征明显，并且相应的各类开采特点也不同。对应地可把储集层分为五大类,即中高渗孔隙流动系统、低渗孔隙流动系统、低渗敏感性孔陈流动系统、低渗裂缝性流动系统、高导流裂缝流动系统。如果油藏开发的初期就能充分认识油水相对渗透率曲线形态，能深刻揭示这种特点所反映的油藏储集层特征及其在开发过程中的变化,以及油水在不同饱和度下的分布与运动规律，这对今后油藏开发具有先期战略性的指导意义。

关键词: 储集层, 相渗透率曲线, 分类, 机理, 特征

Abstract: The relative permeability curves to oil and water can exhibit the pore structural variation, oil and water distribution and oil andwater movement and production characters in reservoirs during water flooding. Although there exist various relative permeability curves tooil and water, they can be divided into such five types from actual field data as upward concave, straight line, downward concave, upwardconvex and chair-shaped types to water phase. These types of curves are of contrast shape, obvious feature and different production char-acters. Accordingly, the reservoirs with above relative permeability characteristics can be classified into five types: three pore flow systemswith moderate-high permeability, ow permeability and low permeability and water sensibility, and two fracture flow systems with low per-meability and high conductivity, respectively. It'1l be of an important role to know the relative permeability curves, reveal their reflectedreservoir characters and master the oil and water distribution and movement of different fluid saturations at the beginning of an oilfield development.

Key words: reservoir rock: relative permeability curve, classification, mechanism, feature

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