远探测声波反射波成像测井在哈拉哈塘地区的应用与评价

Application and Evaluation of Remote Exploration Acoustic Reflection Imaging Logging in Halahatang Areas

塔里木盆地的碳酸盐岩目的层埋藏深,储集空间复杂,储层类型多样,非均质性强.现有的测井仪器受径向探测深度的限制,只能够对井周约2m以内的储层进行评价,对井旁周围的储层难以准确评价.远探测声波反射波成像测井测量的是距井壁3～10m范围内裂缝和地层等地质现象的波阻抗异常,结合常规测井能够综合判断井旁3～10m的储层发育情况,从而提出更加合理的试油方案.远探测声波反射波成像测井技术在塔里木油田共测井53口,LDX井、HAX井等多口井取得了很好的效果,并针对该技术在哈拉哈塘地区的应用结果、适应性及存在的问题,进行了详细的分析和总结,建立了哈拉哈塘地区不同类型储层的声波反射波类型图版.

The target zone of carbonate reservoir in Tarim Basin was buried deeply,reservoir space was complex,reservoir type was diversified,heterogeneity was strong.The logging equipment available was restrained by radial detection depth,it could only evaluate the nearby reservoirs within 2m,it could not accurately evaluate nearby reservoirs around wells.The remote exploration acoustic reflection imaging logging could measure the impedance of cracks and strata and other geological phenomena within the range of 3~10m,and in combination with conventional logging,it could be use to judge the development of the reservoir within the range of 3~10m,and then reasonable formation test program was put forward.The remote exploration acoustic reflection imaging logging technology is used in 53 wells in Tarim Oilfield,and it achieves good results in Well LDX,Well HAX and other wells.Based on the application result in Halahatang Oilfield it adaptability and problems in application,a detailed analysis and summary are carried out,a chart board of acoustic reflection imaging in different reservoirs of Halahatang Area is established.