E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/63
E21B 33/12 (2006.01)
Patent
CA 1161360
A b s t r a c t An arrangement for feeding packing and grouting materi- als to and their processing within a pre-set interval of a well comprises a container pipe which is rigidly mechanical- ly coupled through series mounted stop and cylinder to a string of drill pipes. A splitter knife is provided in the bottom part of the container pipe closed with a plug and a piston is installed in the top part over waterproof envelop- es for movement along the container pipe, having a piston rod to which is rigidly secured a lock engageable with a stop, and a second piston installed in the cylinder for movement therealong and hydraulically coupled to a string of drill pipes. The lock is installed in the piston rod at a distance from the first piston ensuring its locking in the lowermost position immediately over and adjacent to the splitter knife.
373542
Lipatov Nikolai K.
Patrushev Gennady V.
Pyakkonen Boris J.
Tatevosyan Ruben A.
Tereschenko Lev A.
Marks & Clerk
Proizvodstvennoe Geologicheskoe Obiedinenie Servero-Zapadnykh Ra
Proizvodstvennoe Geologicheskoe Obiedinenie Tsentralnykh Raionov
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