Manifold system capable of realizing low-pressure suction and high-pressure discharge

Abstract

The invention discloses a manifold system capable of realizing low-pressure suction and high-pressure discharge. The manifold system capable of realizing low-pressure suction and high-pressure discharge comprises a low-pressure manifold, a high-pressure manifold and a plunger pump, wherein the low-pressure manifold inputs a medium to a fluid end of the plunger pump; discharge ports are formed in the fluid end of the plunger pump; and two discharge ports are formed, and connected into the high-pressure manifold. The manifold system capable of realizing low-pressure suction and high-pressure discharge has the following beneficial effects: the five-cylinder plunger pump with a power of 5000 and above guarantees a high-pressure and large-displacement power source of fracturing equipment. A double-discharge form of the five-cylinder plunger pump realizes smooth liquid discharge of the five-cylinder plunger pump, avoids sand accumulation in the low-pressure manifold, and guarantees a large displacement of the fracturing equipment. A large-drift-diameter manifold with a size of 10 inches is adopted as the low-pressure manifold; and double-suction of a U-shaped pipe realizes enough fluid supply for the large displacement of the five-cylinder plunger pump.

Description

technical field [0001] The invention relates to the technical field of plunger pump fracturing, in particular to a manifold system for low-pressure suction and high-pressure discharge. Background technique [0002] With the continuous development of oil and gas fields, their operating conditions are becoming more and more severe, requiring high-pressure, large-displacement operations to meet the needs of production. A single fracturing equipment needs to output high pressure and large displacement. In addition to having sufficient output power, it also requires that the low-pressure manifold can input enough fracturing fluid, and the high-pressure manifold can output high pressure and large displacement. of fracturing fluid. [0003] Especially in unconventional oil and gas operations—shale gas operations, the operating conditions are harsh. In addition to requiring large displacement and high pressure operations, it also requires long-term continuous operations, and the fr...

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Problems solved by technology

[0005] The purpose of the present invention overcomes the deficiencies of the prior art, and provides a manifold system for low-pressure suction and high-pressure discharge. By optimizing the large-displacement plunger pump from single discharge to double discharge, it solves the problem of five-cylinder plunger pump liquid discharge. Smooth, sand accumulati

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