发明名称 |
PROPELLANT FRACTURING SYSTEM FOR WELLS |
摘要 |
A fracturing system for wells has a propellant charge having a known surface area for combustion, and a combustion rate as a function of pressure with lower combustion rates at lower pressures and rapidly increasing combustion rates at higher pressures separated by a knee in the combustion rate function. The propellant charge is initially sealed within a vessel as it is inserted into a well. The system also includes means for creating openings in the vessel on ignition of the propellant charge in the well, such that the openings have a known combined flow area selected to create a condition of choked flow of combustion gases from within the vessel and maintain pressures within the vessel below the knee in the combustion rate function.
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申请公布号 |
US2010258292(A1) |
申请公布日期 |
2010.10.14 |
申请号 |
US20100756695 |
申请日期 |
2010.04.08 |
申请人 |
TIERNAN JOHN P;SPEAR GUY B;LANDIS DON |
发明人 |
TIERNAN JOHN P.;SPEAR GUY B.;LANDIS DON |
分类号 |
E21B43/263;E21B29/02;E21B43/116 |
主分类号 |
E21B43/263 |
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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