Electric-driving pneumatic sand conveying device used for fracturing operation

Abstract

The invention provides an electric-driving pneumatic sand conveying device used for fracturing operation. A lorry-mounted crane, a frequency converter, an electric-driving hydraulic pump station, a generator set, a Roots blower, a Venturi sand conveying pipe, a big motor and a small motor are installed on a skid base of the device, the big motor is connected with the Roots blower through a belt, the small motor is connected with a rotating bulkhead through a belt, the rotating bulkhead is communicated with the Venturi sand conveying pipe, a sand collecting tank is installed on the upper portion of the rotating bulkhead, a sand feeding hopper is installed on the upper portion of the sand collecting tank and internally provided with a bag breaking device, and the lower portion of the sand feeding hopper is communicated with the sand collecting tank. The device solves the problem that in the prior art, in a widely adopted sand conveying mode, a large quantity of staff are needed, reducesthe number of operation staff, and meanwhile solves the problem of the risk of high-danger operation.

Description

technical field [0001] The invention relates to the field of oil fracturing construction operation equipment, in particular to an electric-driven pneumatic sand delivery device for fracturing operations. Background technique [0002] In the development process of conventional oil and gas fields, when oil and gas wells enter the late stage, in order to increase the production of single wells, it is often necessary to fracture the reservoir to obtain better oil and gas channels. In unconventional oil and gas exploration operations, due to special geological conditions, most oil and gas reservoirs have extremely low porosity and permeability, and the reservoirs must be fractured to obtain industrial oil and gas flow. Fracturing equipment is the necessary equipment for the fracturing process of the reservoir. The fracturing equipment consists of fracturing trucks, sand mixing trucks, manifold trucks, instrument trucks and auxiliary equipment. During the construction operation, ...

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Problems solved by technology

This method has the following four problems: 1. The labor cost of the Gaza operation is high, and three operators are required to work together at the same time; 2. When the operator assisting the operation stands on a vertical sand stack (the height from the ground is close to 10 meters) When working on the ground, there is a risk of high-risk operations; 3. The lifting height is high (more than 10 meters), and there is a greater potential safety hazard in bad weather; 4. The operating efficiency is low, and the fracturing construction unit Improving operational efficiency and operational safety has brought many difficulties

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