Integrated and automatic sand unloading device for petroleum well site fracturing construction and working method of integrated and automatic sand unloading device

Abstract

The invention belongs to the field of petroleum machinery, and provides an integrated and automatic sand unloading device for petroleum well site fracturing construction and a working method of the integrated and automatic sand unloading device. The integrated and automatic sand unloading device comprises a hoist, sand storage tanks, a lifting mechanism, a swing mechanism, a trolleying mechanism, a programmed frequency conversion control system, sandbag untying devices and sandbag tying devices. According to the working method, one-key hoist positioning including one-key positioning of an empty hook and one-key positioning of a large hoisting hook are realized through parameters of the programmed frequency conversion control system. The integrated and automatic sand unloading device for petroleum well site fracturing construction is simple in structure, convenient to operate, high in automation degree, capable of increasing sand transporting efficiency and low in transportation and maintenance cost.

Description

technical field [0001] The invention belongs to the field of petroleum machinery, and in particular relates to an integrated device for automatic sand unloading during oil well site fracturing construction and a working method thereof. Background technique [0002] The number of fracturing stages in the design of large-scale fracturing construction technology is 12-20, and the sand used for a single stage is 50-70m 3 , the scale of single well sand delivery is 600-1400m 3 , large amount of sand, sand truck (15m 3 ) pouring sand back and forth cannot meet the requirements of adding sand. Although the current system of sand breaking with sand bags and sand storage tanks for sand supply meets the construction needs, and sand bags are mainly used for adding sand, there are still the following deficiencies: the sand adding rate is only 0.3-0.5 m 3 / min, and need auxiliary equipment at the same time, the efficiency is not high; need 3-4 staff to cooperate with the operation, th...

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Problems solved by technology

[0002] The number of fracturing stages in the design of large-scale fracturing construction technology is 12-20, and the sand used for a single stage is 50-70m 3 , the scale of single well sand delivery is 600-1400m 3 , large amount of sand, sand truck (15m 3 ) pouring sand back and forth cannot meet the requirements of adding sand

Although the current system of sand breaking with sand bags and sand storage tanks for sand supply meets the construction needs, and sand bags are mainly used for adding sand, there are still the following deficiencies: the sand adding rate is only 0.3-0.5 m 3 / min, and auxiliary equipment is required at the same time, the efficiency is not high; 3-4 staff are required to cooperate with the operation, and the labor intensity is high

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