Water well head master gate rush-spraying device

Abstract

The invention discloses a water well head master gate rush-spraying device which comprises a rotary short joint, a connecting clamp, a transverse adjusting device and a vertical adjusting device. The transverse adjusting device is connected to the top end of the vertical adjusting device. The rotary shaft joint is arranged at the transversely-moving end of the transverse adjusting device. The connecting clamp is connected to the bottom end of the rotary short joint. An installation seat is arranged at the bottom end of the vertical adjusting device. The vertical adjusting device comprises a lead screw, a nut and a perpendicular stand pipe. The nut is installed at the top end of the perpendicular stand pipe through a rotary steel ball seat. The lead screw is screwed in the nut and matched with the nut and then extends into the perpendicular stand pipe. The transverse adjusting device comprises a lead screw assembly and an inner pipe. The lead screw assembly comprises an outer pipe and a lead screw arranged in the outer pipe, a thread is formed on the inner wall of the inner pipe, and the inner pipe is connected with the corresponding lead screw in a matched manner. By the adoption of the water well head master gate rush-spraying device, under the condition that the pressure exists in a well, a master gate on a large four-way joint, a small four-way joint assembly and a gate on a small four-way joint can be forcibly mounted or demounted.

Description

Technical field [0001] The invention relates to a rescue tool for an out-of-control blowout in an oil field, in particular to a blowout device for the main gate of a water well head. Background technique [0002] According to investigations, there are currently three main types of conventional blowout tools equipped in various domestic oilfields: The first type is HK-3 oil and gas well blowout devices, which are used for blowout and replacement when the wellhead bottom flange and the wellhead four-way connection are intact. Fully sealed blowout preventer device; blowout to remove waste wellhead devices; when there is no bottom flange of the wellhead (only casing head), blow out the casing self-sealing and fully sealed well plugging device. The second category is the HK-4 oil and gas well blowout device, which is used to remove the waste wellhead and replace the fully sealed blowout preventer when the wellhead bottom flange and the wellhead four-way connection are intact. The thi...

AI Technical Summary

Problems solved by technology

When there is pressure in the well, the main gate cannot be disassembled under the high-pressure jet flow state, and the top wire and hanger at the wellhead are easy to be punctured and rotted by the sandy flow when the wellhead jack wire and hanger are unobstructed after the wellhead flange is removed with a Christmas tree. When the well pressure is high, the pipe string may blow out, causing the wellhead to lose control

Personal safety accidents may occur, damage oil production equipment, cause environmental pollution, and even stratum collapse

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