高速非达西流气井产能方程的新形式  

New deliverability equation for gas wells with high velocity non-Darcy flow

作　　者：杨筱璧 李祖友 鲁敏蘅[2] 李浩[2] 

机构地区：[1]中石化川西采气厂,四川德阳618000 [2]中油辽河油田公司,辽宁盘锦124010

出　　处：《特种油气藏》2008年第5期74-75,83,共3页Special Oil & Gas Reservoirs

基　　金：中国石油天然气集团公司创新基金项目“天然气水合物相态行为及动力学研究”资助(04E7047)

摘　　要：在计算平面径向非达西流动附加压降时,将上积分边界定为供气边界这一做法与实际情况不符,因为一般情况下,非达西流动只在井筒近井地带存在,而在远离井筒的地区仍为达西流。根据实际情况,对附加压降的计算公式给予修正,并以修正后的附加压降计算公式重新推导产能方程,得出了更符合实际的服从非达西流动的产能方程的新形式。When calculating additional pressure drop of areal-radial non-Darcy flow,regarding the upper integral boundary as the gas supply boundary is not consistent with the fact.In most cases,non-Darcy flow only occurs in the immediate vicinity of wellbore,while Darcy flow still exists far away from the wellbore.The calculation formula of additional pressure drop has been revised,and the revised formula is used to derive the deliverability equation which is more compliant with the reality and in compliance with non-Darcy flow.

关 键 词：产能方程 非达西流 附加压降 

分 类 号：TE33[石油与天然气工程—油气田开发工程]