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a mixing pump

A mixed pump and the other side technology, applied in the field of fluid machinery, can solve the problems of difficult separation of sediment, large changes in oil-gas ratio, unstable downhole pressure in oil fields, etc.

Inactive Publication Date: 2017-12-08
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, most oil and gas mixed transportation equipment at home and abroad use screw mixed transportation pumps, but due to the instability of downhole pressure in oil fields, large changes in oil-gas ratio, difficult separation of sediment and high gas content, the reliability of screw mixed transportation pumps is poor.
[0003] In my country's oilfield exploitation, the annual amount of associated gas resources is extremely huge, and the amount of gas that can be actually recycled is less than 10%. Such venting is not only a huge waste of resources, but also causes serious pollution

Method used

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Embodiment Construction

[0022] In order to better illustrate the intention of the present invention, the content of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] Please refer to Figure 1-3 , the mixed transport pump shown in the figure, which includes a cylinder body 5, a left end cover 1 is installed on one end of the cylinder body 5, the other side of the left end cover 1 communicates with the outlet pipeline, and an oil tank and a bearing seat are installed on the other end of the cylinder body 5 12. A rotor 4 and a crankshaft 31 are arranged in the inner cavity of the cylinder body 5, and the crankshaft 31 is arranged along the horizontal direction. The rotor 4 can swing with the crankshaft 31 in a plane, and the outer wall surface of the rotor 4 is always tangent to the inner wall surface of the cylinder body 5. , the direction of rotation is determined by the settings of the inlet and outlet. Between the rotor 4 and the crankshaf...

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Abstract

The invention discloses a mixed transportation pump which comprises a cylinder. A left end cover is arranged at one end of the cylinder, the other side of the left end cover is communicated with an outlet pipeline, and an oil tank and a bearing pedestal are arranged at the other end of the cylinder. A rotor and a crankshaft are arranged in an inner cavity of the cylinder. The crankshaft is arranged in the horizontal direction, the rotor does plane swing along with the crankshaft, and the outer wall of the rotor and the inner wall of the cylinder are kept tangent all the time. Rolling bearings are arranged between the rotor and the crankshaft, and the rotor is in close fit with the crankshaft through the rolling bearings. According to the mixed transportation pump, all components are well lubricated, the service life of the whole pump is prolonged, and guarantees are provided for application of the multiphase mixed transportation technology to oilfield exploitation and oil-gas mixed transportation.

Description

technical field [0001] The invention belongs to the field of fluid machinery, and relates to a novel mixing pump, in particular to a mixing pump for mixing and boosting crude oil output directly to a combined station. Background technique [0002] With the continuous development and utilization of offshore and remote oil fields, gas-liquid two-phase mixed pumps with effective gathering and transportation technology and good economic benefits have become a research hotspot. , and the content of gas or liquid is often higher than the working range of conventional pumps or compressors, so multiphase pumps should have both the performance of compressors and pumps. At present, most oil and gas mixed transportation equipment at home and abroad use screw mixed transportation pumps. However, due to the unstable downhole pressure in oil fields, large changes in oil-gas ratio, difficult separation of sediment and high gas content, the reliability of screw mixed transportation pumps is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/344F04C15/00
CPCF04C2/344F04C15/0088
Inventor 彭学院吴晗王雷雷冯健美
Owner XI AN JIAOTONG UNIV
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