发明名称 |
METHOD AND APPARATUS FOR CREATING A PRESSURE PULSE IN DRILLING FLUID TO VIBRATE A DRILL STRING |
摘要 |
<p>A pressure pulse generating method and apparatus for use with a drill string includes a top and bottom subs for attaching the apparatus within the drill string; a power section comprising a rotor/stator; a drive assembly; and a nozzle sub which includes a nozzle assembly comprising a nozzle holder and a replaceable nozzle; and a nozzle housing having pulse openings. The nozzle holder has fluid ports which periodically align with the pulse openings as the nozzle holder rotates within the nozzle housing to achieve a desired pulse amplitude, frequency and waveform.</p> |
申请公布号 |
WO2013106938(A1) |
申请公布日期 |
2013.07.25 |
申请号 |
WO2013CA50035 |
申请日期 |
2013.01.18 |
申请人 |
COUGAR DRILLING SOLUTIONS INC. |
发明人 |
GUST, TOM |
分类号 |
E21B7/24;B06B1/18;B06B1/20;E21B7/04 |
主分类号 |
E21B7/24 |
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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