CAJ | 학술논문

针对吉拉克凝析气田目前基本采用老井生产,井况复杂,边底水影响严重,开发调整难度大等实际情况,基于对气田综合地层水矿化度、油样颜色变化和油样密度变化、现代产量递减分析诊断曲线以及单井产水特征等的研究,对气藏单井产水原因进行了分析,认为低产水井受局部非均质性形成的共存水影响、高产水井受边底水影响而产水.为了正确表征油环及局部共存水的分布特点,综合国内外带油环凝析气藏建模方法,利用Petrel软件建立该气藏精细地质模型,并采用非平衡初始化方法及赋初始参数场的形式建立了气藏初始化模型.在单井产水分析基础上,通过数值模拟历史拟合对模型进行修正,为后期气藏开发调整提供了基础和依据.图7参14
침대길랍극응석기전목전기본채용로정생산,정황복잡,변저수영향엄중,개발조정난도대등실제정황,기우대기전종합지층수광화도、유양안색변화화유양밀도변화、현대산량체감분석진단곡선이급단정산수특정등적연구,대기장단정산수원인진행료분석,인위저산수정수국부비균질성형성적공존수영향、고산수정수변저수영향이산수.위료정학표정유배급국부공존수적분포특점,종합국내외대유배응석기장건모방법,이용Petrel연건건립해기장정세지질모형,병채용비평형초시화방법급부초시삼수장적형식건립료기장초시화모형.재단정산수분석기출상,통과수치모의역사의합대모형진행수정,위후기기장개발조정제공료기출화의거.도7삼14
The development of the Jilake condensate gas field is dominated by production of old wells,with complicated well status,serious impact of edge-bottom water,and difficulty in development and adjustment.Through the study of formation water salinity,color and density change of oil samples,diagnostic curve characteristic of modem production decline analysis,and individual-well water production,the reason for water production is analyzed as follows:gas wells with low water production are affected by local connate water,while gas wells with high water production are influenced by the bottom-edge water.Integrated with domestic and overseas modeling of oil rim gas condensate reservoirs,a fine geological model is built by Petrel geo-modeling software,and the approaches of non-equilibrium initialization and parameters initial value assignment is used to form the initialization model of the gas condensate field so as to correctly portrait the oil rim and local connate water.On the basis of the single-well water production analysis,the geological model is corrected through performance dynamic history match.The result provides a base and foundation for later development adjustment of this condensate gas field.