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 accumulation inside the low-pressure manifold, etc., by optimizing the 5″ upper liquid manifold of the low-pressure manifold to a 10″ upper liquid manifold, it ensures sufficient liquid supply under the condition of large displacement and avoids large discharge Measuring the air suction of the plunger pump, escorting the smooth and smooth operation of the plunger pump

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