榆林气田S井区气井生产动态分析
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摘要
本文通过分析S井区气井压力、产量的变化,研究了储层对生产动态的影响,把26口生产井分成了高产稳产型气井,中产稳产型气井和低产稳产型气井等3类。研究得出:气井产能的大小与气井所处的砂体位置及砂体的厚度有关,位于主砂带内部或有效厚度大的气井,生产能力和生产稳定性较好;位于主砂带边部或有效厚度小、渗透性较差的气井生产能力和生产稳定性差。根据井区实际生产情况和储层特征,利用生产指示曲线确定出该井区合理产量。
The variation of pressure and production is analyzed for the gas wells in the block S.The influence of the reservoir on the production performance is studied.The 26 wells are divided into 3 types including the wells which productivity is higher;the wells which productivity is middle and the wells which productivity is lower.The study result s show the productivity of gas wells is relative with the location and thickness of the sand body where the gas well lies at.The gas wells that lie within the main sand belt or have big effective thickness possess high productivity and good production stability.The gas wells that lie in the sides of the main sand belt or have less effective thickness and poor permeability possess low productivity and poor production stability.According to the real situation and the reservoir features of the block,with the production designation curve,get the reasonable production.
The variation of pressure and production is analyzed for the gas wells in the block S.The influence of the reservoir on the production performance is studied.The 26 wells are divided into 3 types including the wells which productivity is higher;the wells which productivity is middle and the wells which productivity is lower.The study result s show the productivity of gas wells is relative with the location and thickness of the sand body where the gas well lies at.The gas wells that lie within the main sand belt or have big effective thickness possess high productivity and good production stability.The gas wells that lie in the sides of the main sand belt or have less effective thickness and poor permeability possess low productivity and poor production stability.According to the real situation and the reservoir features of the block,with the production designation curve,get the reasonable production.
引文
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[10]李洪玺等.榆林气田陕141井区气井生产特征动态分析.天然气工业,2005;25(12):89~91.
[2]王震量,等.鄂尔多斯盆地中部上古生界天然气运移特征分析[J].石油勘探与开发,1998,25(6):124.
[3]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002:52260.
[4]刘全稳,陈景山,曹淑丽,等.圈闭管理内容与方法[J].天然气工业,2002,22(3):17220.
[5]韩申庭等.鄂尔多斯盆地榆林区山西组砂岩气藏岩性地震勘探.天然气工业,1998;18(5):10~13.
[6]傅诚德等.鄂尔多斯盆地研究.北京:石油工业出版社,2001.
[7]王震亮等.鄂尔多斯盆地中部上古生界天然气运移特征分析.石油勘探与开发,1998;25(6):1~4.
[8]王震亮等.鄂尔多斯盆地神木—榆林地区上石盒子组、石千峰组天然气成藏机理.石油学报,2004;25(3):10~13.
[9]傅锁堂等.长庆气田榆林区山2段砂岩气藏的AVO分析.天然气工业,2000;20(6):24~26.
[10]李洪玺等.榆林气田陕141井区气井生产特征动态分析.天然气工业,2005;25(12):89~91.
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