气井近井地带储层伤害计算及解堵工艺应用  

Near wellbore zone of gas well reservoir damage calculation and application of removing reservoir blockage

作　　者：李柏鹏[1] 刘洋[1] 高旺斌 陈虎[1] 郝小云[1] 宁梅[1] 吕玉海[1] 

机构地区：[1]中国石油长庆油田分公司第一采气厂,陕西靖边718500

出　　处：《石油化工应用》2015年第10期41-44,47,共5页Petrochemical Industry Application

摘　　要：随着靖边气田开发时间的延长,部分气井表现出不同程度的近井地带储层伤害现象,严重影响气井产能。储层伤害程度一般通过试井解释结果来判断,但对于低渗透气田试井时压力稳定需半年甚至更长时间,严重影响气井开井时率。本文提出通过不试井近似地得到储层污染程度的方法,采用堵塞比和表皮附加压降表征了储层近井地带的污染程度;同时,利用储层解堵技术对靖边气田气井的储层环境进行了改善,提高了气井产量,措施效果明显。With the extension of Jingbian gas field development time, the part of gas well showed different degrees of reservoir damage phenomena near wellbore area, serious impact on gas well productivity. Reservoir damage degree usually by judging the well test interpretation results, but for the low permeability gas well test pressure stability need to half a year or longer, the serious influence gas well well opening rate. In this paper, by not reservoir well test approximately obtained the degree of pollution, blockage ratio and pressure drop skin attachments introduced to characterize the degree of pollution near wellbore area of reservoir.At the same time, the use of removing reservoir blockage technology to Jingbian gas field gas well reservoir environment improved, improved the gas well production, measures the effect is obvious.

关 键 词：靖边气田 储层 伤害 计算 

分 类 号：TE258[石油与天然气工程—油气井工程]