E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/63
E21B 33/12 (2006.01) E21B 27/02 (2006.01) E21B 33/138 (2006.01)
Patent
CA 1190146
DEVICE FOR APPLYING PLUGGING MIX TO WELL WALLS Abstract of the Disclosure A device for applying plugging mix to well walls com- prises installed in series and interconnected a piston having passages for the flow of a fluid and spring-biased locking members for fixing the position of the device with respect to a drilling string, and a head carrying vanes for applying plugging mix to well walls and a bit for drilling-off the mix installed at the distal end of the head. The head has passages for the flow of the fluid. The vanes are made in the form of two plates installed on oppo- site sides of the head at an angle with respect to its axis of rotation, the vanes being radially movable with respect to the axis of rotation. The piston, the head and the bit are of a diameter which is slightly smaller than the nominal inside diameter of the drilling string.
395259
Kovalenko Vitaly I.
Lipatov Nikolai K.
Nikolaev Nikolai I.
Tatevosian Ruben A.
Tereschenko Lev A.
Liningradsky Gorny Institut Imeni G.v. Plekhanova
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Proizvodstvennoe Geologicheskoe Obiedinenie Tsentralnykh Raionov
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