删除或更新信息,请邮件至freekaoyan#163.com(#换成@)

套管中模式波的响应特征*

本站小编 Free考研考试/2022-01-02

瑕佹壘鑰冪爺鑰冨崥涓撲笟璇剧湡棰樸€侀搴撱€佽棰戯紵杩欓噷璧勬簮瓒呭叏锛佸湪绾垮厤璐归槄璇伙紒
2涓囩鑰冪爺鑰冨崥鐢靛瓙涔︼紙棰樺簱銆佽棰戙€佸叏濂楄祫鏂欙級鍙婂巻骞寸湡棰橈紝娑电洊547鎵€闄㈡牎4涓囦綑涓€冪爺鑰冨崥涓撲笟绉戠洰銆佽€冪爺鍏叡璇撅紙鏀挎不鑻辫鏁板锛夈€�40绉嶄笓涓氱澹紙閲戣瀺纭曞+銆丮BA銆佸浗闄呭晢鍔$澹€佹柊闂讳紶鎾澹€佺ぞ浼氬伐浣滅澹瓑锛夈€�28绫诲悓绛夊鍔涚敵纭曚笓涓氥€�1130绉嶇粡鍏告暀鏉愩€傛棤璁烘偍鏄湡棰樻紨缁冦€侀搴撳埛棰橈紝杩樻槸澶嶄範鏁欐潗锛屼竴涓猇IP浼氬憳鍧囧彲婊¤冻鎮ㄧ殑闇€姹傘€�
-->
陈雪莲,唐晓明,刘临政.套管中模式波的响应特征*[J].,2020,39(1):2-8
套管中模式波的响应特征*
Response characteristics of the model waves in the casing
投稿时间:2019-07-26修订日期:2019-12-19
中文摘要:
在固井质量评价中主要利用套管中模式波的幅度或衰减变化反映水泥的胶结状况,不同测井仪器在套管中激发的模式波的类型不同,研究套管中各模式波的传播特征和影响因素可充分挖掘测量数据的潜在应用价值。CBL和SBT等测井仪器在套管中主要激发拉伸波,类同于平板中的零阶对称Lamb波,水泥环封隔测井仪器的斜入射模式在套管中主要激发套管弯曲波,类同于平板中的零阶反对称Lamb波,垂直入射模式激发套管共振波,类同于平板中的高阶对称Lamb波。本文重点分析了这些模式波的衰减特征及其对微环的响应,套管弯曲波在套后耦合轻质水泥时对微环不敏感,但在套后耦合常规水泥或重水泥时,其衰减明显高于胶结良好的状况;拉伸波对微环的存在最为敏感;套管共振波对微环不敏感。
英文摘要:
The amplitude or attenuation variation of the guided waves in the casing is mainly used to evaluate the cement bonding quality. The types of the guided waves excited by different logging tools may be different. Studying the propagation characteristics and influencing factors of the guided waves in the casing can fully explore the potential applications of measurement data. CBL and SBT logging instrument can generate the longitudinal wave in the casing, which is analogous to the zero order symmetric Lamb waves in the plate. The pitch-catch pattern of IBC tool with oblique incidence can stimulate flexural wave in the casing, which is analogous to the zero order anti-symmetric Lamb wave in the plate. The ultrasonic reflection pattern with vertical incidence can excite the casing resonance waves, which is analogous to the high order symmetric Lamb waves in the plate. This paper focuses on analyzing the attenuation characteristics of these mode waves and their response characteristics with micro-annulus model. The flexural wave is not sensitive to micro-annulus when the light cement is bonded behind casing. On the contrary, the flexural wave is sensitive to micro-annulus when the regular cement is bonded behind casing. The longitudinal wave is very sensitive to the presence of micro-annulus. Casing resonance waves are insensitive to micro-annulus.
DOI:10.11684/j.issn.1000-310X.2020.01.001
中文关键词:水泥胶结,套管井,拉伸波,弯曲波
英文关键词:Cementbonding, Casedwell, longitudinalwave, flexuralwave
基金项目:国家自然科学基金(41774141)
摘要点击次数:1009
全文下载次数:827
查看全文查看/发表评论下载PDF阅读器
相关附件:修改说明图件压缩包(含正文)
关闭








PDF全文下载地址:

http://yysx.cnjournals.cn/ch/reader/create_pdf.aspx?file_no=19131&flag=1&journal_id=yysx&year_id=2020
相关话题/地球科学 中国石油大学 仪器 中文 英文

鎼滅储2涓囩鑰冪爺鑰冭瘉鐢靛瓙涔︼紙棰樺簱锛岃棰戯級鍏嶈垂鐢�
澶ч儴鍒嗙闉嬮兘鏄涓€娆¤€冪爺锛屽浜庡浣曟煡鎵句笓涓氳鎸囧畾鏁欐潗锛屾垨璁告湁寰堝鐤戦棶銆侳ree澹逛桨鍒嗗涔犵綉鑰冪爺娣辫€曚笓涓氳杈呭20骞达紝鎬荤粨浜嗚秴瀹炵敤鐨勬寚瀹氭暀鏉愭煡璇㈡柟娉曞強澶嶄範鏂规硶锛屾湁闇€瑕佺殑鐪嬭繃鏉�