[1]張悟群,唐曉明,張凱,等.可控敲擊聲源在干井聲波測井中的可行性研究[J].測井技術,2020,(04):334-337.[doi:10.16489/j.issn.1004-1338.2020.04.003]
 ZHANG Wuqun,TANG Xiaoming,ZHANG Kai,et al.Feasibility Study on Controllable Knocking Sound Source of Acoustic Logging in Dry Well[J].WELL LOGGING TECHNOLOGY,2020,(04):334-337.[doi:10.16489/j.issn.1004-1338.2020.04.003]
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可控敲擊聲源在干井聲波測井中的可行性研究()
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《測井技術》[ISSN:1004-1338/CN:61-1223/TE]

卷:
期數:
2020年04期
頁碼:
334-337
欄目:
測井方法
出版日期:
2020-08-30

文章信息/Info

Title:
Feasibility Study on Controllable Knocking Sound Source of Acoustic Logging in Dry Well
文章編號:
1004-1338(2020)04-0334-04
作者:
張悟群 唐曉明 張凱 譚寶海
(中國石油大學(華東), 山東 青島 266580)
Author(s):
ZHANG Wuqun TANG Xiaoming ZHANG Kai TAN Baohai
(China University of Petroleum, Qingdao, Shandong 266580, China)
關鍵詞:
聲波測井 煤礦探測 干井探測 電磁沖擊錘
Keywords:
acoustic logging coal mine exploration dry well detection electromagnetic impact hammer
分類號:
TE19
DOI:
10.16489/j.issn.1004-1338.2020.04.003
文獻標志碼:
A
摘要:
在干井條件下,常規聲波測井儀器的聲源由于井中流體缺失無法應用。探討采用電磁沖擊錘敲擊井壁產生聲波信號進行測井的可行性,設計電磁錘激勵控制電路和發射、接收分離試驗系統,并在實驗井中進行測試分析。實驗結果表明,電磁錘聲源性能受激勵電壓與激勵脈沖寬度控制,聲波信號的到時隨激勵電壓的增大而減小,應用時可根據實際需要對激勵參數進行選擇,證實該系統可有效測量地層聲速信息。在測量理論和接收波形分析等方面開展深入系統研究,有望開發出干井中的聲波探測技術,在煤礦勘探和開采中廣泛應用
Abstract:
Under dry well conditions, the acoustic source of conventional acoustic logging instruments cannot be widely used due to the lack of fluid in the well. This paper discusses the feasibility of generate acoustic signals for logging by using electromagnetic impact hammer to strike the borehole wall. Designed electromagnetic hammer excitation control circuit, transmission and reception separation test system, is tested in the experimental well. The results show that the acoustic source performance of the electromagnetic hammer is controlled by the excitation voltage and the excitation pulse width, and the arrival time of the acoustic wave signal decreases with the increase of the excitation voltage. The excitation parameters can be selected according to the actual needs in application, which confirms that the system can effectively measure the formation sound velocity information. It is expected to develop acoustic wave detection technology in dry well conditions by carrying out in-depth systematic research on measurement theory and receiving waveform analysis, which can be widely used in coal mining exploration and production

參考文獻/References:



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備注/Memo

備注/Memo:
(修改回稿日期: 2020-05-19 本文編輯 杜雪威)基金項目: 國家自然科學基金面上項目“隨鉆聲波測井雙源反激隔聲方法及實驗研究”(41774138); 國家自然科學基金青年基金項目“基于反褶積最優化設計的雙源反激過套管聲波測井理論和方法研究”(41804121) 第一作者: 張悟群,男,1993年生,碩士研究生,從事聲波測井儀器方向研究。E-mail:[email protected]
更新日期/Last Update: 2020-08-25
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