A hydraulic pump station skid and a hydraulic pressure-driven pump with a hydraulic pump station skid

Abstract

A hydraulic pump station skid and a hydraulic pressure-driven pump with a hydraulic pump station skid relate to the technical field of petroleum equipment, wherein the hydraulic pump station skid includes a power element, a transfer case and a plurality of hydraulic oil pumps, and the power element and transfer case The input end of the transfer case is connected by transmission, and the transfer case has multiple output ends, and the output ends of the transfer case are respectively connected to the hydraulic oil pump by transmission. In the hydraulic pump station skid of the present invention, one power element is used to drive multiple hydraulic oil pumps, and the transfer case is used for transmission. In the case of using a small number of power elements, the maximum displacement of the hydraulic pressure drive pump can be increased by selecting a conventional hydraulic oil pump. quantity. The hydraulic pressure drive pump of the present invention includes the above-mentioned hydraulic pump station skid.

Description

technical field [0001] The invention relates to the technical field of petroleum equipment, in particular to a hydraulic pump station skid and a hydraulic pressure drive pump. Background technique [0002] The pressure flooding technology is to use the conventional fracturing construction technology to inject a large volume of high-efficiency oil-displacing agent into the formation to recover the energy of the formation, and use the displacement and replacement of the high-efficiency oil-displacing agent to tap the remaining oil and improve the degree of reservoir production. Measures to increase production technology. In the practice of pressure-flooding operations in Daqing Oilfield in my country, the cumulative oil increase in the stage of pressure-flooding technology is four times that of conventional fracturing measures, and the effectiveness has been fully verified. [0003] At present, some oil fields use fracturing trucks for pressure-driving operations. Common frac...

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Problems solved by technology

[0004] However, in the crankshaft plunger pump of the prior art, the stroke is short, the number of reversing times is large, the plunger moves frequently, and the life of the wearing parts is short, for example, the service life of the valve seat, valve and valve rubber at the fluid end Only tens of hours; In addition, the output pressure and flow coverage of this crankshaft plunger pump is relatively narrow. To improve the coverage, it is necessary to replace the fluid end with a different cylinder diameter; , the fracturing fluid is discharged before it is fully inhaled, resulting in low suction efficiency and low work efficiency; in addition, the fracturing pump is integrated with a crankshaft, power input gear, connecting rod, hydraulic end box and seat, etc. The structure is complex, the manufacturing cost is high, and the disassembly and maintenance are inconvenient; in addition, the power input gear rotates at high speed and heavy load, which has high requirements for lubrication and cooling, and it is necessary to arrange a complex lubrication system and corresponding cooling system

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