青海油田套管井饱和度测井技术应用  

Application of Cased hole Saturation Logging Technology in Qinghai Oilfield

作　　者：张洪[1] 邱金权 雷刚[1] 李得信[2] 王青川[1] 甘常建 ZHANG Hong;QIU Jinquan;LEI Gang;LI Dexin;WANG Qingchuan;GAN Changjian(Well Testing Company,Qinghai Oilfield,Mangya,Qinghai 816499,China;Training Center,Qinghai Oilfield,Mangya,Qinghai 816499,China)

机构地区：[1]青海油田测试公司,青海茫崖816499 [2]青海油田培训中心,青海茫崖816499

出　　处：《测井技术》2018年第2期215-220,共6页Well Logging Technology

摘　　要：青海油田油气藏类型较为丰富,地质特征差异明显,主要应用以核测井方法为基础的PNN测井、PSSL全谱测井。通过近600余井次的规模应用,逐步形成了成熟的4类典型油气藏饱和度测井工艺和解释方法。中高水淹油田,利用PNN测井的地层俘获截面测井曲线与补偿中子测井曲线叠合方法,达到定性识别水淹层目的;低矿化度油田,采用PSSL测井的C/O模式进行油水层识别;低电阻率气田采用PNN与PSSL结合方法开展气水层解释;注气油田利用PNN时间推移测井监测气液界面运移情况,为制定合理的油田开发方案提供了科学依据。The types of oil and gas reservoirs in Qinghai oilfield are abundant with obvious the geological characteristic differences and different development modes and development status,so the process of saturation logging in cased hole should be applied for reservoir conditions.At present,PNN pulse neutron and PSSL full spectrum logging are mainly used in Qinghai oilfield through nuclear logging,the annual logging capacity is about 80 wells.Through the application of more than 600 wells,The mature saturation logging technology and interpretation method of four kinds of typical oil and gas reservoirs are gradually formed.In the middle and high water flooded oilfield,this paper proposes a method of combination of capture cross section interface curve in PNN logging and the compensated neutron curves for the purpose of qualitative identification of watered out layers.In low salinity oilfield,oil and water layer identification uses carbon oxygen logging in PSSL;In low resistivity gas field,gas and water layer interpretation uses PNN and PSSL;PNN time lapse logging is used to monitor the gas-liquid interface migration in gas injection oilfield,which provides a scientific basis for the development of oilfield.

关 键 词：饱和度测井 脉冲中子-中子测井 脉冲全谱饱和度测井 剩余油评价 水淹层识别 气液界面 青海油田 

分 类 号：P631.84[天文地球—地质矿产勘探]