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Coring tool
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Core barrels ÑÊ-178/80 (100) BIT are purposed for drilling with core recovery by core bits 212,7 mm diameter with a hydraulic bottom motor or with a rotor in rock formations of I-III category of coring difficulty. High core recovery is achieved by using spiral stabilizers of the body, a plastic inserts and ballpoint centralizers of a core lifter. For drilling with a bottom motor cory barrel are packed with crossover sub and joint of bowl draw-off. Depending on technical-technological and geological demands core barrels can be supplied as one section unit.
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Core barrels CK128/80 are purposedfor recovery of isolated and normal (nonisolated) core of 80 mm diameter by special cutting core bits 144...148,5 mm diameter with a hydraulic bottom motor or with a rotor.
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Core barrels CK -102/50 BIT are purposed for drilling with recovery of core 50 mm in diameter by core bits of 122,4...141,3 mm diameter with a bottom motor or witha rotor in formations of I-II category of coring difficulty.
Acc. to customer's demand the core barrel is supplied with safety-valve, purposed for directly before core recovery and using as a drive af a bottom motor.
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