Ultra-high-pressure and large-flow combined fracturing manifold
A large-flow, combined technology, applied in the direction of production fluid, wellbore/well components, earthwork drilling and production, etc., to achieve the best use effect and economic benefit, high repetition coefficient and standardization coefficient, and the effect of reducing product volume
Active Publication Date: 2016-01-06
JIANGSU HONGTAI PETROCHEM MACHINERY
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Problems solved by technology
However, there are still many problems in the existing domestic fracturing manifolds in terms of product volume, pressure rating, pressure loss, operational performance, wear life, automatic control and multi-well fracturing; compared with the international advanced level There is still an obvious gap, which cannot meet the needs of the increasing development of domestic fracturing technology
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[0011] The present invention and embodiments will be further explained below in conjunction with the drawings:
[0012] figure 1 , figure 2 In this case, the invention is composed of one main fracturing pipeline and multiple fracturing branch pipelines. The fracturing main pipeline is responsible for collecting the fracturing fluid input from each fracturing branch pipeline and outputting the fracturing fluid; each fracturing branch pipeline is mainly used as a fracturing truck or high-pressure pump to input fracturing fluid to the fracturing main pipeline The channel, if necessary, can also be used as a fracturing main line to output fracturing fluid to the oil and gas well. Multiple large oblique crosses (1) and elevated sub-sections (2) connected in sequence in the fracturing main pipe are connected to a main channel with a larger diameter; the bottom large oblique cross (1) is installed in reverse , As the main outlet of fracturing fluid output; at the three channel ports w...
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An ultra-high-pressure and large-flow combined fracturing manifold consists of a fracturing main pipeline and a plurality of fracturing branches. The fracturing main pipeline comprises a plurality of oblique crosses and elevating short pieces; the oblique crosses are connected to one another sequentially; the bottom large oblique cross is mounted reversely; and each of the large oblique crosses at two ends of the fracturing manifold is provided with a lateral surface and a top union. Each fracturing branch comprises a same-diameter flange joint, a double valve combination, another same-diameter flange joint, a small oblique cross, a lateral surface and a top union which are sequentially connected to one another from inside to outside. The same-diameter flange joint at the inner end of each fracturing branch is connected to two lateral surfaces or one lateral surface of the corresponding large oblique cross in the fracturing main pipeline; and a blind flange is mounted on a lateral surface, without the fracturing branches, of each oblique cross. In addition, all parts and pipelines are connected to one another by bolts, nuts and sealing spacers; and each double valve combination consists of a manual ball screw flat valve and a hydraulically driven flat valve which share a valve body. The ultra-high-pressure and large-flow combined fracturing manifold is suitable for multi-wellhead and large-scale fracturing operation.
Description
Technical field [0001] The invention relates to a fracturing manifold in petroleum machinery and oil and gas well drilling and production equipment. Background technique [0002] The use of acid fracturing technology to increase the output of oil and gas wells is one of the main technical measures for repeated exploitation of old oil and gas fields and drilling and production of low-permeability oil and gas fields. With the improvement of the professionalization and scale of acid fracturing operation technology, multiple fracturing trucks or high-pressure pumps are used at the same time to fracturing one or more adjacent oil and gas wells to increase labor productivity. Has become very common. However, the existing domestic fracturing manifolds still have many problems in terms of product volume, pressure rating, pressure loss, operational performance, wear life, automatic control and multi-well fracturing; compared with the international advanced level There are still obvious ...
Claims
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Inventor 姜金维
Owner JIANGSU HONGTAI PETROCHEM MACHINERY