Oil-water well perforating gun pulling device operating under pressure
A technology of pressurized operation and perforating gun, which is applied in wellbore/well components, production fluid, earth-moving drilling, etc., can solve problems such as affecting safe production, serious environmental pollution of wellhead operation, etc., and achieve the effect of avoiding blowout operation
Inactive Publication Date: 2015-04-08
CHINA PETROLEUM & CHEM CORP +1
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The invention discloses an oil-water well perforating gun pulling device operating under pressure and belongs to the technical field of special oilfield borehole operation devices. The device comprises a lifting head and a blowout control barrel, wherein a slip is arranged at the lower part of the blowout control barrel; the slip comprises a slip bowl and slip inserts; at least two inverted cone-shaped clamping grooves are formed in the inner tube wall of the slip bowl; the slip inserts are arranged in the clamping grooves; and a rotating bearing is arranged between the upper part of the blowout control barrel and the lifting head. The device provided by the invention cooperates with equipment operating under pressure, a perforating gun body is clamped by the slip at the lower part of the blowout control barrel, and the rotating bearing is mounted between the lifting head and the blowout control barrel so that the lifting head and the blowout control barrel rotate relative to each other to achieve the purpose of pulling out a perforating operation tubular column and the perforating gun body separately during operation construction under pressure, avoid blowout operation and realize safety production.
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