【摘要】 利用后效录井可以对油气层显示进行归位,它是判别储集层流体性质和侵入程度的重要手段,可用以识别随钻气测录井显示的真假异常。通过分析目前使用的后效录井的深度归位方法,发现环形空间的差别和钻井液排量是影响归位深度的主要因素,为了消除影响,对后效录井的深度归位方法进行改进并编制了计算机程序,不但使录井人员从复杂的人工计算中解脱出来,也使归位深度更加准确,为油气层的准确评价提供有力支持。更多还原

【Abstract】 The depth of shows in oil and gas zones can be determined ac- curately by aftereffect logging,which is an important means to dis- tinguish reservoir fluid properties and invasion extent,and can be used to recognize the true and false in gas logging shows while drill- ing.By analyzing the depth homing method of aftereffeet logging at present,the author found that the differences in annular spaces and the drilling fluid displacement are the main factors to affect the homing depth.In order to eliminate the influences,the homing depth method of aftereffect logging is improved and the computer program is worked out,which not only makes the mud logging per- sonnel release from the complex manual computation,but also makes the homing depth be more accurate,thus providing a power- ful support for evaluating oil and gas reservoirs accurately.更多还原