摘要
S3-1区块凝析气藏纵向上夹层较发育,但夹层普遍具有低渗透,本文深入分析夹层展布、物性特征,并对低渗透夹层与底水锥进关系深入探讨,分析认为低渗透性夹层不具有完全封隔性,但对底水突进有一定抑制作用;同时生产压差增大,夹层封挡能力大幅度降低,底水锥进速度加快。气藏生产压差应保持一定合理范围之内,才能充分利用低渗透夹层,抑制底水锥进,对存在低渗透夹层气藏长期高效开发提供借鉴和指导意义。
The condensate gas reservoir in block S3-1of longitudinal sandwich is well developed,but the interlayer generally have low permeability,this paper deeply analyzes the distribution,physical characteristics of sandwich,and the low permeability interlayer and bottom water coning relations in-depth study,analysis of that semi permeable interlayer is not completely isolated,but has a certain inhibitory effect on the bottom water advance;at the same time,the production pressure difference increases,large amplitude sandwich blocking ability is reduced,the bottom water coning speed.That gas reservoir production pressure difference should maintain certain reasonable range,can make full use of low permeable sublayer,bottom water coning,exist in the low permeability gas field development of interlayer long-term efficient provides reference and guiding significance.
出处
《内蒙古石油化工》
CAS
2015年第8期88-90,共3页
Inner Mongolia Petrochemical Industry
关键词
低渗透夹层
底水锥进
生产压差
Low permeability interlayer water coning production pressure difference
