Slip type sand filling supporting device

Abstract

The invention relates to a slip type sand filling supporting device, and the slip type sand filling supporting device mainly solves the problems that the existing well sealing tools for protecting a wellhead and a wellhole are easy to damage and the sand is easily leaked into the well to cause the blocking during the sand filling operation. The slip type sand filling supporting device is characterized in that the interior of an upper joint (1) is connected with a salvage head (2) through a deblocking pin (3), an upper cone (8) is connected to the outer side of the bottom of the upper joint (1), a sand-proof leather cup (4) is arranged outside the upper joint (1), a lower cone bidirectional control tube (12) is connected to the inner side of the bottom of the upper joint (1), a lower cone (13) is connected with the bottom of the lower cone bidirectional control tube (12), a slip (10) is arranged outside the upper cone (8) and the lower cone (13), the upper and lower ends of the slip (10) are fixed through a cone guide sleeve (9), and the interior of the cone guide sleeve (9) is connected with a supporting device inner sleeve (17) through an anti-rotation pin (16). The slip type sandfilling supporting device can slip and stop at any position to achieve the purpose of protecting the wellbore and timely monitoring the well sealing state of an underground bridge plug.

Description

technical field [0001] The invention relates to the field of oil fields, in particular to a slip type sand filling supporter. Background technique [0002] At present, the sealing tool for protecting the wellhead and wellbore can seal the casing at 6-20m downhole, so as to achieve the purpose of oil layer sealing and protect the wellhead and wellbore. However, sand is easy to leak into the well during sand filling operation and cause sand stuck problems. , and is easy to be destroyed, and cannot release pressure during unsealing operations, posing serious safety and environmental protection hazards. Contents of the invention [0003] In order to overcome the problem that the existing sealing tools for protecting the wellhead and shaft are easy to be damaged, and the sand is easy to leak into the well during sand filling during the sealing operation to cause sand sticking, the present invention provides a slip type sand packing supporter, The slip-type sand packing support...

AI Technical Summary

Problems solved by technology

[0002] At present, the sealing tool for protecting the wellhead and wellbore can seal the casing at 6-20m downhole, so as to achieve the purpose of oil layer sealing and protect the wellhead and wellbore. However, sand is easy to leak into the well during sand filling operation and cause sand stuck problems. , and is easy to be destroyed, the pressure cannot be released during the unsealing operation, and there are serious safety and environmental protection hazards

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