Remote control high-pressure unloading system for CO2 fracturing and use method

Abstract

The invention belongs to the technical field of oil and gas filed exploration and development and particularly relates to a remote control high-pressure unloading system for CO2 fracturing. The system comprises a one-way valve, an outlet of the one-way valve is connected with a fracturing main pipeline, and an inlet of the one-way valve is connected with a cock valve. The cock valve is communicated with one port of a T-type right-angle tee joint, and the other two ports of the T-type right-angle tee joint are connected with a remote control high-pressure unloading cock valve and a CO2 fracturing pump truck. The remote control high-pressure unloading cock valve is connected with a drift diameter pressure release plug and a cock valve executor, and the cock valve executor is connected with a fracturing vehicle storage battery and a local instrument control box through two cables respectively. By means of the system, ground manifold operators can be made far away from a high-pressure area, health and safety of people are guaranteed, and meanwhile the efficiency of a fracturing preparation circulating cold pump is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of exploration and development of oil and gas fields, and in particular relates to a CO 2 Remote control high-pressure unloading system for fracturing and its use method, suitable for oil and gas well CO 2 Fracturing construction work. Background technique [0002] With CO 2 With the continuous development of fracturing technology, the scale and frequency of construction have gradually increased, and various risk factors have also increased. of which CO 2 The key link of fracturing construction, the circulating cold pump and the pressure release in the manifold after fracturing, require construction personnel to enter the high-pressure and high-concentration CO 2 The operation of pipe and valve parts in the environment has caused great hidden dangers to the health and safety of construction workers. [0003] (3)CO 2 The remote control unloading system redesigns the plug valve that needs to be operated ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of construction personnel entering high pressure and high concentration CO in the prior art 2 In view of the potential safety hazards in the operation of pipe valves in the environment, one of the purposes of the present invention is to propose a CO 2 The remote control high-pressure unloading system for fracturing keeps ground manifold operators away from the high-pressure area, ensuring the health and safety of personnel, and at the same time greatly improves the effect of the fracturing preparation circulating cold pump

Images