A kind of quick connector and using method

Abstract

The invention discloses a quick connector and an application method and belongs to the technical field of drilling equipment and tools in the petroleum industry. The quick connector comprises a male connector body, a female connector body, a steel ball / clamping block locking device and a looseness preventing device. One end of the male connector body is connected with a bypass valve through a thread, the other end of the male connector body is a plug, one end of the female connector body is fixedly connected with a high-pressure pipeline through a union, the other end of the female connector body is a jack, and the plug of the male connector body can be plugged into the jack of the female connector body. Sealing is achieved by a sealing ring in the jack, the steel ball / clamping block locking device is used for locking, quick butt joint between the bypass valve and the high-pressure pipeline is achieved, and after plugging and locking, a drill rod pup joint body can be tightened by the looseness preventing device to prevent the connector from loosening accidentally.

Description

technical field [0001] The invention relates to a quick connector and a using method thereof, belonging to the technical field of drilling equipment and tools in the oil industry. Background technique [0002] The continuous circulation valve can maintain the continuous circulation of drilling fluid when connected to a single root or column, so it can achieve a stable equivalent circulation density and uninterrupted discharge of cuttings during the entire drilling period, which significantly improves drilling safety. The continuous circulation valve is pre-installed on the upper end of each single root or column, and is composed of a drill pipe short body, a central valve and a bypass valve. A valve is installed on each of the two valves. The valve that controls the opening and closing of the central through hole is called the central valve, and the valve that controls the opening and closing of the bypass hole is called the bypass valve. The steering control of the drilling...

AI Technical Summary

Problems solved by technology

The connector described in Patent 1 has the following disadvantages: 1. The union needs to be assembled and disassembled once for each operation. Because the high-pressure pipeline is heavy and difficult to bend, the connection of the union is time-consuming and laborious, and frequent disassembly and assembly will increase the labor intensity of the operator. In addition, the union needs to be tapped and locked every time it is connected. Improper tapping may cause damage to the connector and even the radial valve A.

2. The connector is not equipped with the necessary anti-loosening device, and there is a potential safety hazard that the connector and the radial valve A are accidentally separated

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