深圳风采049:
[1]呂秀梅,李瑞豐,馮逾.超聲脈沖回波測井信號影響因素數值模擬[J].測井技術,2019,43(03):263-267.[doi:10.16489/j.issn.1004-1338.2019.03.008]
 LYU Xiumei,LI Ruifeng,FENG Yu.Numerical Simulation of Influencing Factors on Ultrasonic Pulsed Echo Logging Signals[J].WELL LOGGING TECHNOLOGY,2019,43(03):263-267.[doi:10.16489/j.issn.1004-1338.2019.03.008]
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超聲脈沖回波測井信號影響因素數值模擬()
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《測井技術》[ISSN:1004-1338/CN:61-1223/TE]

卷:
第43卷
期數:
2019年03期
頁碼:
263-267
欄目:
方法研究
出版日期:
2019-06-30

文章信息/Info

Title:
Numerical Simulation of Influencing Factors on Ultrasonic Pulsed Echo Logging Signals
文章編號:
1004-1338(2019)03-0263-05
作者:
呂秀梅 李瑞豐 馮逾
(大慶油田有限責任公司測試技術服務分公司, 黑龍江 大慶 163153)
Author(s):
LYU Xiumei LI Ruifeng FENG Yu
(Logging & Testing Services Company of Daqing Oilfield CO. LTD., Daqing, Heilongjiang 163453, China)
關鍵詞:
測井解釋 超聲回波測井 套管水泥界面 水泥地層界面 流體環厚度 回波幅度 聲阻抗
Keywords:
log interpretation ultrasonic echo logging casing-cement interface cement-formation interface thickness of fluid ring echo amplitude acoustic impedance
分類號:
P631.84
DOI:
10.16489/j.issn.1004-1338.2019.03.008
文獻標志碼:
A
摘要:
針對套管井超聲脈沖回聲測井進行固井質量評價和套管檢測問題,建立了6層介質模型進行數值模擬考察并分析了超聲脈沖回波測井中的各種影響因素。對完全膠結情況下數值模擬的全波進行套管地層環形空間介質聲阻抗和套管壁厚反演,驗證了數值模擬方法及反演方法的正確性。在此基礎上數值模擬分析了水泥環厚度變化,套管水泥界面(Ⅰ界面)和水泥地層界面(Ⅱ界面)存在流體環等因素對接收回波的影響。數值模擬了完全膠結情況下地層參數變化對超聲脈沖回波測井接收信號的影響,接收回波后半段幅度隨著地層聲速及阻抗的增加而增加。數值模擬分析結果有助于對超聲脈沖回波測井資料解釋結果進行正確分析。
Abstract:
In order to get more accurate evaluation on cementing quality and casing condition using ultrasonic pulsed echo logging data, a model including 6 layers was established for numerical simulation and analysis of influencing factors on ultrasonic pulsed echo logging data. Inversion to the acoustic impedance of annulus medium and cased formation and the wall thickness of casing was carried out using the full wave data numerically simulated under the condition of full cementation. Then the thickness of cement ring, the fluid rings on casing cement interface(interface I)and formation cement interface(interface II)were numerically simulated to analyze how they influence echoes. In addition, the influences of formation parameters on echoes is simulated numerically. The amplitude of the second half of the received echo increases with the increase of acoustic velocity and impedance. The results of numerical simulation provide useful information to correct analysis of the interpretation results of ultrasonic pulse echo logging data.

參考文獻/References:

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備注/Memo

備注/Memo:
第一作者: 呂秀梅,女,1969年生,碩士,高級工程師,從事固井質量評價及套損檢測預測等研究工作。E-mail:[email protected]
更新日期/Last Update: 2019-08-30