声波变密度测井技术及固井质量评价方法应用.doc

声波变密度测井技术及固井质量评价方法应用冯啸辰摘要随着套管井测井技术应用向着多元化发展,声波变密度测井在油田监测固井质量方面主要采用声幅测井和声波变密度测井。通过对声波理论研究深入,声波信息与岩层参数关系的研究,数字测井技术和测井资料数据处理技术的发展,设计了声波全波列测井。声波全波列测井不仅能够通过声幅及胶结指数(BI 值)曲线对套管与水泥的胶结进行评价,而且能够依据 VDL 图像对水泥与地层的胶结进行评价,从而克服了普通声幅测井的片面性,提高了解释的可靠性。既能反映一界面胶结状况,又能提供二界面胶结信息。本文首先阐述了声波变密度测井原理及仪器技术原理,然后结合声波变密度测井中一些典型实例资料进行了剖析, 针对影响固井质量测井的因素提出了对各种干扰的判断和解决方法,对不同固井质量作出评价解释; 在此基础上探究声波变密度测井技术优缺点。最后,以期提搞人们对声波变密度水泥胶结测井技术的认识程度,提高其资料综合利用价值。关键词声波变密度测井固井质量评价水泥胶结测井测井解释 Variable D ensity A coustic L ogging T echnology A nd Q uality E valuation M ethod A pplied C ementing Abstract With the cased hole logging technology toward diversification, variable density acoustic monitoring of logging in the oil field cementing the sound quality of the main pieces of logging and the use of acoustic variable density log. Through in-depth theoretical study of acoustic, acoustic rock parameters of the relationship between information and research, digital logging data logging technology and data processing technology development, design of full-wave acoustic logging. Full-wave acoustic logging not only by the sound amplitude and cementation index (BI value) curve of the casing and cement bond evaluation, but also based on VDL image formation on the cement and cement evaluation, the sound amplitude to e mon test Well one-sidedness, improving the reliability of interpretation. Both reflect an interface bond conditions, but also