Oscillation well cementation tool
The invention provides an oscillation well cementation tool which comprises a vibration shaft, an upper vibration component arranged on the upper portion of the vibration shaft in a sleeving mode and a lower vibration component connected to the lower end of the vibration shaft. A first liquid supply...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides an oscillation well cementation tool which comprises a vibration shaft, an upper vibration component arranged on the upper portion of the vibration shaft in a sleeving mode and a lower vibration component connected to the lower end of the vibration shaft. A first liquid supply channel and a first liquid discharge channel are formed in the two axial sides of the first vibration cylinder, and a plurality of first liquid passing through holes which are non-uniformly formed in the circumferential direction are formed in the first piston; the lower vibration component comprises a vibration sleeve with a liquid inlet flow channel and an eccentric vibration block arranged in the vibration sleeve, and a variable-flow flow channel enabling the fluid overflowing area to change suddenly is arranged in the axial direction of the eccentric vibration block. The well cementation device has the advantages that cement paste can be fully and uniformly stirred, and the well cementation effect is guarantee |
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