彩133井区西山窑组油藏储层敏感性特征及注水防膨评价  

RESERVOIR SENSITIVITY CHARACTERISTICS OF XISHANYAO FORMATION AND WATER-INJECTION ANTI-SWELLING EVALUATION

作　　者：冷严[1] 戴文英[1] 赵增义[1] 寇根[1] 沈南[2] 

机构地区：[1]中国石油新疆油田公司勘探开发研究院 [2]中国石油新疆油田公司彩南油田作业区

出　　处：《天然气勘探与开发》2011年第1期32-35,74-75,共4页Natural Gas Exploration and Development

摘　　要：通过对彩133井区西山窑组储层敏感性实验、注入水与地层水配伍性评价、储层注入水储层伤害评价、防膨稳定剂效果评价的研究发现,该井区储层具有强水敏特征,其临界矿化度为12447.46mg/L;注入水与地层水配伍性良好;当注入达30倍孔隙体积倍数时,储层注入水伤害模拟评价其渗透率损失率平均为41.6%;0.3%的彩-12#防膨稳定剂对储层具较好的防膨稳定效果。In this paper, for Xishanyao Formation of Cai 133 well block, the reservoir sensitivity is tested; and the compatibility evaluation of both injection water and formation water, the reservoir-damage evaluation of injection water, and the effect evalua-tion of anti-swelling stabilizer are also studied. Theresults show that: ( 1 ) the reservoir in this well block is characterized by strongwater sensitivity and with critical salinity of 12447.46mmg/L; (2) a better compatibility exists between injection water and formation water; (3) when 30-time porous volume is injected, the permeability loss ratio is 41.6% in average evaluated by the injection-waterdamage simulation; and (4) the anti-swelling stabilizer of Cai-12# with concentration of 0.3% has a better effect of anti-swellingand stability on reservoir.

关 键 词：注入水 敏感性 地层水 注水伤害 防膨稳定剂 

分 类 号：P618.13[天文地球—矿床学]