摘要
塔河油田断溶体油藏蕴藏着丰富的石油资源,以大型溶洞和裂缝为主要储集空间和流动通道。在对断溶体油藏钻井时常发生泥浆漏失和井眼垮塌,难以进行常规测井测量,因而无法进行储层评价,甚至无法确定油层位置(即油源深度)。温度测井不受井眼条件的影响,可以测量关井时的静温和生产时的流温曲线,人们试图通过流静温度差异来推测油源的深度。本文依据断溶体油藏的形态特征和尺寸参数,构建多种井筒、地层与缝洞的物理模型,建立受流体流动影响的温度场,通过数值方法耦合温度场和流动场,模拟不同断溶体油藏石油生产时,井筒温度分布的变化。进而通过流温和静温的关系推测断溶体油藏油源位置,为断溶体油藏进一步的开发提供技术支持。
The carbonate karstic-fault oil-bearing reservoir is rich in oil resources storage,and large karst caves and fractures are the main reservoir space and flow channels.There are mud leakage and hole collapse in the drilling process,so it is difficult to carry out conventional logging measurement,and reservoir evaluation or even reservoir depth(i.e. oil source location) can not be determined.Temperature curve is often used in production logging,and it is not affected by borehole condition and it can reflect the depth of the reservoir.Based on the morphological characteristics and size of karstic-fault reservoir,the authors constructed the geometric models of wellbore,formation,fracture and cave,and simulated the variation of wellbore temperature in the production of karstic-fault reservoir by numerical simulation method.The simulation results were analyzed,and then the oil source depth of karstic-fault reservoir was estimated by well temperature curve,which provides technical support for further development of karstic-fault reservoir.
作者
胡文革
邹宁
李丹丹
黄知娟
雷健
郭宇航
潘保芝
HU Wen-Ge;ZOU Ning;LI Dan-Dan;WANG Zhi-Juan;LEI Jian;GUO Yu-Hang;PAN Bao-Zhi(Sinopec Northwest Oilfield Company,Urumqi830012,China;College of GeoExploration Sicence and Technology,Jilin University,Changchun130026,China)
出处
《物探与化探》
CAS
北大核心
2020年第4期748-755,共8页
Geophysical and Geochemical Exploration
基金
国家重大专项“塔里木盆地碳酸盐岩油气田提高采收率关键技术示范工程”(2016ZX05053)
中石化科研项目“顺北一区采输关键技术研究与应用——顺北一区完井技术研究与应用”(P18022⁃01)。
关键词
断溶体油藏
数值模拟
井温曲线
油源位置
karstic-fault reservoir
numerical simulation
well temperature curve
reservoir depth