Particle temporary plugging agent tank type adding device and method for fracturing

Abstract

The invention relates to a particle temporary plugging agent tank type adding device and method for fracturing. The particle temporary plugging agent tank type adding device comprises a liquid storage tank box and a temporary plugging agent tank box. The temporary plugging agent tank box is obliquely hinged to the upper part of the liquid storage tank box, a liquid storage tank is arranged in the liquid storage tank box, a temporary plugging agent tank is arranged in the temporary plugging agent tank box, a liquid outlet is formed in one end of the temporary plugging agent tank, a filter is arranged at one end of the liquid storage tank, and the liquid outlet is formed over the filter. According to the particle temporary plugging agent tank type adding device and method for fracturing, by arranging the liquid storage tank, after particle temporary plugging agents are added, pushing liquid in the temporary plugging agent tank can be quickly discharged to the liquid storage tank from the liquid outlet of the temporary plugging agent tank without detaching a pushing liquid outlet joint and a pushing liquid inlet joint, so that the time of adding the particle temporary plugging agents is shortened and the workload of adding the particle temporary plugging agents is reduced, and secondary addition of the particle temporary plugging agents or other fracturing operations after addition of the particle temporary plugging agents is facilitated.

Description

technical field [0001] The invention belongs to the technical field of petroleum drilling, in particular to a tank-type dosing device and a dosing method of a granular temporary plugging agent for fracturing. Background technique [0002] Fracturing is a commonly used stimulation measure at present, especially in the development of low-permeability oil and gas reservoirs, fracturing must be carried out in order to obtain better results. On the basis of depressing old fractures for the first time, use temporary plugging agent to generate filter cake bridge plugging in original fractures or high permeability layers, so that subsequent working fluid cannot enter, prompting new fractures to be depressed again, new longitudinal layers to be opened, and plane fractures to be diverted . Due to the need to produce a high-strength filter cake layer, the strength of the granular temporary plugging agent is required to be high. If it is added from the sand mixing equipment, the granul...

AI Technical Summary

Problems solved by technology

Since the internal volume of the 4-inch hose is about 7.7L / m, if the hose is short, the amount of particles temporarily blocked each time is small, and multiple operations are required; if the hose is long, although more particles can be pushed at one time plugging agent, but the hose is heavy and requires multiple people to operate at the same time, which not only prolongs the construction time, but also requires a lot of labor; due to the long hose, the particle temporary blocking agent is often blocked during the push process, requiring Beat or beat the hose to achieve the smooth push of the particle temporary plugging agent, which will affect the life of the hose on the one hand, and increase the working intensity on the other hand

Images