中国石油大学学报（自然科学版）Issue(6)：54-60,7.DOI:10.3969/j.issn.1673-5005.2014.06.008
声波测井高灵敏度宽带接收器研究
Research on high-sensitivity and wide-band receiver used in acoustic well logging
摘要
Abstract
Investigations on a high-sensitivity and wide-band receiver used in acoustic well logging are conducted combining finite element methods and experimental measurements. The optimization analysis on the receiver by ANSYS shows that the length and thickness of ceramic plates have major effects on the receiver performance characteristics. The operating frequency bandwidth broadens as the length of ceramic plates decreases, and the receiving sensitivity improves as the thickness of ce-ramic plates increases. Furthermore, the receiving performance of the optimized receiver is simulated by ANSYS, and its performance indices are obtained. In the operating frequency bandwidth from 1 kHz to 30 kHz, the average of receiving sen-sitivity is -204. 85 dB and the sensitivity fluctuation is less than 2. 3 dB. According to the optimized structural parameters of the receiver, a prototype is fabricated and measured in a water tank. The experimentally measurements are in good agreement with the calculated results, supporting the high sensitivity and wide bandwidth of the receiver.关键词
声波测井/接收器/工作频率/接收灵敏度Key words
acoustic logging/receiver/operating frequency/receiving sensitivity分类
天文与地球科学引用本文复制引用
吴金平,乔文孝,车小花..声波测井高灵敏度宽带接收器研究[J].中国石油大学学报（自然科学版）,2014,(6):54-60,7.基金项目
国家自然科学基金项目(11204380,11374371,11134011,61102102) （11204380,11374371,11134011,61102102）
国家油气重大科技专项(2011ZX05020-009) （2011ZX05020-009）
中国石油科技创新基金项目(2013D-5006-0304) （2013D-5006-0304）
中国石油天然气集团公司项目(2011A-3903,2011B-4001) （2011A-3903,2011B-4001）
