发明名称 |
System for pulse-injecting fluid into a borehole |
摘要 |
Applying pulses to liquid being injected into wells makes the ground/liquid formation more homogenous, and more penetrative. A system for automatically creating the pulses is described, in which a piston is acted upon by the pressure differential (PDAF) between the supplied accumulator pressure and the formation pressure. The changing levels of the PDAF as the pulse-valve opens (and the PDAF falles) and as the pulse-valve closes (and the PDAF rises) are harnessed to actuate an inhibitor that restrain movement of the valve-piston, and delays opening and/or closing of the pulse-valve. The pulse-valve is engineered to open explosively, and thus create penetrative porosity-waves in the formation. The system includes a pressurized-gas accumulator, and injection-check-valve which can maintain pulsing even when the ground is not saturated, and the static injector, which allows non-pulsed injection only when the ground is non-saturated. |
申请公布号 |
AU2009204670(B2) |
申请公布日期 |
2013.06.20 |
申请号 |
AU20090204670 |
申请日期 |
2009.01.19 |
申请人 |
WAVEFRONT RESERVOIR TECHNOLOGIES LTD. |
发明人 |
WARREN JR., JOHN MICHAEL;PRINGLE, RONALD E.;SAMAROO, MAHENDRA;DAVIDSON, BRETT CHARLES;MAILAND, JASON C. |
分类号 |
E21B34/06;E21B33/068;E21B34/10 |
主分类号 |
E21B34/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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