Wells – Sonic device – With specific downhole feature
Patent
1976-07-09
1977-11-15
Purser, Ernest R.
Wells
Sonic device
With specific downhole feature
166178, 166193, 175 55, 175107, 175231, 175237, E21B 4100
Patent
active
040581632
ABSTRACT:
A vibrating apparatus connected with a member insertable into a well bore including an insertable and retrievable member enabling the vibrating apparatus to be selectively actuated. The vibrating apparatus includes a rotatable, eccentric weight forming a rotor having selectively closable through passage means and bypass means oriented to impart rotation of the eccentric weight when the through passage is closed and pressurized fluid is required to pass through the bypass for discharge in offset relation to the axis of rotation for rotating the eccentric weight thereby vibrating the apparatus and the well bore member to which it is attached. In one embodiment of the invention, the through passage is closed by a ball valve which can be inserted into the flow passage at ground surface for movement into engagement with a valve seat by gravity together with a magnet insertable into the flow passage for retrieving the ball valve which is subject to magnetic attraction. Another embodiment of the vibrating apparatus includes an insertable plug having a spiral passageway peripherally thereof with the plug being locked to the rotatable eccentric weight when inserted into the flow passage and provided with a passageway communicating with the spiral passageway for guiding fluid pressure therethrough. A third embodiment involves the construction of the vibrating apparatus of drillable material to enable it to be effectively used when running in well casings or the like.
REFERENCES:
patent: 2187088 (1940-01-01), Malan
patent: 2307983 (1943-01-01), Barnes
patent: 2825412 (1958-03-01), Standridge
patent: 2967048 (1961-01-01), Fontaine
patent: 3335801 (1967-08-01), Wilsey
Jacobson Harvey B.
O#Brien Clarence A.
Pate III William F.
Purser Ernest R.
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