Remote control type ram block hydraulic locking apparatus

Abstract

The invention belongs to a remote-control type blowout preventer flashboard hydraulic locking device in oil drilling equipment. The hydraulic locking device comprises a mechanically-control check valve assembly, a locking hydraulic cylinder assembly and an inductance-type display device, wherein the mechanical-control check valve assembly is connected respectively with a blowout preventer remote control device opening oil passage and a blowout preventer remote control device closing oil passage; the locking hydraulic cylinder assembly is connected with a blowout preventer flashboard; and the inductance-type display device is positioned on one side of the locking hydraulic cylinder assembly. Compared with the prior art, the hydraulic locking device has the following advantages that: 1. the whole operation is controlled remotely; 2. the oil passages are opened or closed in unification; under the control of the mechanically-control check valve assembly, movements in two sequences are finished, and a second movement is not carried out until a first movement is finished; and 3. as an inductance-type remote display device is adopted, manual short-distance observation is not needed.

Description

technical field [0001] The invention belongs to the technical field of oil drilling control equipment, and is suitable for remote closing and locking, unlocking and opening of a blowout preventer ram during oil drilling, and remote control and observation of whether the ram is fully opened. Background technique [0002] The ram of the ram BOP is closed and opened by hydraulic pressure. When it needs to be closed for a long time, the traditional method is to manually go to the front of the ram BOP and lock it with tools. , it still needs to be manually unlocked first, and then the ram is opened by hydraulic pressure; after the ram is opened, whether it is completely returned to the predetermined position is also determined by manual observation in front of the ram BOP. Its disadvantage is that it must be manually operated in front of the blowout preventer. In the event of an emergency such as a blowout or poisonous and harmful gas ejected from the well, the equipment may be o...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to design a remote-controlled BOP ram hydraulic locking device to solve the problem that the locking shaft at the tail of the main piston is strained and bent during the process of closing, locking and unlocking the ram, and Remote observation of whether the gate is fully open

Images