Rope salvaging type hydraulic compulsory coring driller
A technology for coring drills and coring bits, which is used in the extraction of undisturbed core devices, earth-moving drilling, wellbore/well components, etc., can solve high requirements for hydraulic dynamic sealing, in-hole accidents, and excessive extrusion of alarm gaskets and other problems, to achieve the effect of increasing the core extraction rate, improving the effect of breaking the core, and reducing the suction effect.
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[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0032] Referring to Figure 1, figure 2 , image 3 , Figure 4 , The present invention is a rope salvage type hydraulic forced coring drill, which includes an outer tube assembly and an inner tube assembly; the outer tube assembly is provided with a snap stop head 1, a snap chamber 2, an outer tube 3. The reamer 4, the centralizing ring 5 and the coring bit 6, the snap stop head 1, the snap chamber 2, the outer tube 3, the reamer 4, the centralizing ring 5 and the coring bit 6 from top to bottom Assembled in sequence to form an upper and lower through cavity; the inner tube assembly is placed in the cavity of the outer tube assembly, and the axial positioning of the inner tube assembly is achieved through the cooperation of the sealed suspension ring 15 and the seat ring 16, and the inner tube assembly The spearhead assembly 7, the spring clip...
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