发明名称 |
DOWN-HOLE PULSE SOURCE TO ACT ON WALLS OF HOLE |
摘要 |
excision of pulses of pressure in certain points, cleaning of face zone of hole. SUBSTANCE: down- hole pulse source has two working chambers, two cylinders with differential pistons which are fixed in initial position by two ball locks. Intermediate chamber is connected to two cylinders. Motor is located in intermediate chamber. Ball locks release differential pistons in certain points of hole with the aid of two locking arms set in motion by motor with two output shafts linked to screws via clutches. Screws have different direction of thread. Down-hole pulse source also has two reflectors between which shock wave with negative pressure front is excited. EFFECT: enhanced efficiency of action on face zone of hole thanks to action of pulse on limited section of hole. 1 cl, 1 dwg
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申请公布号 |
RU2184207(C2) |
申请公布日期 |
2002.06.27 |
申请号 |
RU20000118771 |
申请日期 |
2000.07.14 |
申请人 |
TOMSKIJ POLITEKHNICHESKIJ UNIVERSITET |
发明人 |
KRAUIN'SH P.JA.;SMAJLOV S.A.;IOPPA A.V.;MOJZES B.B.;KULAKOV V.F. |
分类号 |
E21B28/00;E21B37/00;E21B43/18;E21B43/25;(IPC1-7):E21B28/00 |
主分类号 |
E21B28/00 |
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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