Folding sand tank used for stratum fracturing

Abstract

The invention discloses a folding sand tank used for stratum fracturing. The folding sand tank comprises a top layer sand storage tank portion, a second layer sand storage tank portion and a sand leaking portion. The sand leaking portion is internally provided with a sand leaking section. The side surface of the sand leaking portion is provided with a sand leaking support. A bottom protective fence is arranged under the sand leaking support. A positioning device is arranged between the bottom protective fence and the sand leaking support. The upper portion of the sand leaking portion is connected to the second layer sand storage tank portion through the positioning device. The outer side of the second layer sand storage tank portion is wrapped with a layer of a folding support. The upper portion of the second layer sand storage tank portion is connected to the top layer sand storage tank portion through the positioning device. The outer side of the top layer sand storage tank portion is also wrapped with a layer of a folding support. Wallboards are arranged on the inner sides of the folding supports of the top layer sand storage tank portion and the second layer sand storage tank portion correspondingly. A base is arranged under the bottom protective fence. A sand outlet extending obliquely downwards is formed in the sand leaking section. The outer side of the tail end of the sand outlet is sleeved with a telescopic pipe. According to the folding sand tank, the space can be saved, raised dust is reduced, dismounting is convenient, and the transporting and using effects of site fracturing can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of oil and gas field development, in particular to a foldable sand tank for formation fracturing. Background technique [0002] In oil and gas field stimulation operations, low-permeability oil and gas fields, especially shale gas fields, are generally exploited through fracturing to achieve economical and effective development of low-permeability reservoirs. Fracturing is to use the surface high-pressure pump group to pump fracturing fluid into the wellbore to hold up the high pressure to rupture the reservoir, and continue to pump the fracturing fluid through the wellbore to make the fractures formed in the reservoir continue to extend. The fracturing fluid squeezes into the fractures formed in the reservoir, supports the formed fractures, and provides a flow channel with high conductivity for oil and gas, thereby increasing oil and gas production. [0003] At present, the sand tanks used in fracturing co...

AI Technical Summary

Problems solved by technology

[0003] At present, the sand tanks used in fracturing construction are heavy and bulky. In response to these problems, the applicant has previously submitted a patent with application number 201611028400.9, which provides a sand tank that can be folded and stored, which greatly improves the It solves some problems existing in the current sand tank, but there are still some deficiencies in some aspects of the last design, such as a part of the sand outlet pipeline extending out of the tank, which cannot be directly installed on the tank for transportation. Disassemble or assemble after arriving at the scene; the positioning and alignment steps are cumbersome when assembling the tank body, and it takes a long time; the interlayer sealing is poor, and there are sand leakage and dust. Therefore, the present invention is based on the aforementioned technical solutions. Further improvements on the above, effectively solve the above problems

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