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基于声波聚焦共振技术破裂岩石的油气田增产方法及装置

申请公布号:CN102661139A

申请号:CN201210142059.5

申请日期:2012.05.09

申请公布日期:2012.09.12

申请人:
西南石油大学

发明人:郭建春;王其军;白翔;卢聪

分类号:E21B43/26(2006.01)I

主分类号:E21B43/26(2006.01)I

代理机构:
成都市辅君专利代理有限公司 51120

代理人:杨海燕

地址:610500 四川省成都市新都区新都大道8号

摘要:本发明涉及一种基于声波聚焦共振技术破裂岩石的油气田增产方法及装置,供电电缆连接电源模块后变换为直流电源,直流电源通过驱动供电电缆提供给驱动模块,驱动模块产生固定频率的高压脉冲信号,并且此高压脉冲信号的频率值与待破碎岩石的固有频率接近,高压脉冲信号经驱动信号电缆使声波聚焦换能器发射出声波信号,声波信号经抛物球面聚焦至焦点处,调整焦点的位置使其落在待破碎岩石上。本发明利用共振原理,通过变频和聚焦,将声波能量聚焦在所需要破碎的岩石区域,使其因共振而破裂,本发明可在井下固定位置,固定范围内产生人工裂缝,可用于污染井的增产,也可用于改变岩石应力状态,为大型增产改造措施(如水力压裂)提供有利条件。

主权项:一种基于声波聚焦共振技术破裂岩石的油气田增产方法,主要是利用声波聚焦共振破裂岩石,供电电缆为整个装置提供电源,电源接入电源模块后将交流电源变换为直流电源;直流电源通过驱动供电电缆提供给驱动模块,驱动模块产生固定频率的高压脉冲信号,并且此高压脉冲信号的频率值与待破碎岩石的固有频率接近,高压脉冲信号经驱动信号电缆驱动声波聚焦换能器发射出声波信号,声波信号经抛物球面聚焦至焦点处;调整焦点的位置落在待破碎岩石上,使其因共振而破裂。

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