松辽盆地双坨子气田产能分析

Tianranqi Gongye/Natural Gas Industry(2003)

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Abstract
双坨子气田是目前吉林油田天然气开发的主力区块,正处于开发实验阶段.通过对双坨子气田地质特征的研究,结合气田试采动态资料,分析了气藏试采动态特征,初步认为:白垩系泉头组三段以上气藏为小型中低产中低渗岩性构造气藏,泉一段、侏罗系气藏为中型中丰度低渗透中产中深常压原生凝析气藏;中深部气井产量稳定,产气量相对较高;浅层气井日产气量相对低于深部气井,日产水量较大,生产压差大;下游用户用气量波动影响较大.同时,利用产能试井测试资料和实际生产数据,应用经验法、单井产量法、单位压降法和流入流出曲线法综合分析了单井产能,从而确定了双坨子气田整体年产气1.45×108m3的能力,年采气速度为2.3%,为双坨子气田的有效开发提供了依据.
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Key words
Gas reservoir feature,Gas reservoir performance,Gas reservoir type,Jilin oil field,Production control,Productivity evaluation,Songliao basin
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