Passive automatic-flow type filling method of carbon dioxide fracturing device

Abstract

The invention discloses a passive automatic-flow type filling method of a carbon dioxide fracturing device. The method comprises the following steps: rotatably mounting a filling head on a filling end of a fracturing device main pipe, and rotatably mounting a simple head to an energy release end of the fracturing device main pipe; connecting an output valve of a liquid carbon dioxide tank with a filling interface of the filling head so as to introduce liquid carbon dioxide in the liquid carbon dioxide tank into the fracturing device main pipe; closing the output valve of the liquid carbon dioxide tank, and discharging out liquid carbon dioxide in the fracturing device main pipe; detaching the simple head, and mounting an energy release head and a bursting piece at the energy release of the fracturing device main pipe; and introducing liquid carbon dioxide in the liquid carbon dioxide tank into the fracturing device main pipe again, so as to finish the filling process of liquid carbon dioxide of the carbon dioxide fracturing device. The passive automatic-flow type filling method has the advantages that the operation is simple, safe and reliable, and the cost is low; the filling operation can be conveniently and rapidly finished without purchasing a special filling machine, so that the cost input can be substantially reduced; and the method has relatively good practicability.

Description

technical field [0001] The invention relates to a blasting device, in particular to a carbon dioxide cracking device which utilizes liquid carbon dioxide vapor phase cracking technology for blasting. Background technique [0002] The carbon dioxide cracking device is also called carbon dioxide cracking device, carbon dioxide blasting device, and carbon dioxide extractor, mainly including cracking device main pipe, energy release head, burst disc, and filling head. The energy discharge head and the filling head are respectively screwed on the two ends of the main pipe of the cracker. On the filling head, there is a filling channel leading to the main tube of the cracker and a thimble for opening and closing the filling channel. An energy release channel is provided on the top, one end of the energy release channel leads to the main pipe of the cracker, and the other end leads to the outside of the carbon dioxide cracking device. The customized rupture disk is sealed and arra...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that a special filling machine needs to be used when filling liquid carbon dioxide in the carbon dioxide cracking device in the prior art, its operation is complicated and the capital investment is relatively large. A filling method, wherein the carbon dioxide cracking device includes a cracker main pipe, an energy release head, a burst disc, a filling head, and a heating device, and the filling method includes the following steps:

Images