Separated mining mixed outlet oil well pump
An oil well pump and oil pumping technology, which is applied in the direction of pumps, pump components, variable capacity pump components, etc., can solve the problems of pipeline eccentric wear, oil channel bending deformation, etc., achieve small oil flow resistance, avoid bending deformation, The effect of convenient processing
Active Publication Date: 2019-01-15
YANGTZE UNIVERSITY
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Problems solved by technology
However, in the existing layered oil production tools, the gap between the parts is set as the flow path of the oil circuit. This method is easy to cause the problems of partial wear of the pipeline and bending deformation of the oil channel channel.
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[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0019] The present invention provides a kind of oil well pump that separates and mixes, such as figure 1 As shown, it includes a sucker rod 1 , a pump casing 2 , an upper pump part 3 , a lower pump part 4 , an upper pump barrel 31 , an upper plunger assembly 32 , a lower pump barrel 41 and a lower plunger 42 .
[0020] The pump casing 2 is arranged at the pumping end of the sucker rod 1, and the upper pump part 3 and the lower pump part 4 are arranged vertically in the pump casing 2; the upper pump part 3 includes an upper pump barrel 31 and an upper A plunger assembly 32, the upper plunger assemb...
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The invention discloses a separated mining mixed outlet oil well pump, which comprises a pumping rod, a pump casing pipe, an upper pump portion and a lower pump portion; the upper pump portion comprises a upper pump barrel and an upper plunger assembly, the upper plunger assembly is internally provided with an upper end mixed oil outlet channel, a mixing cavity communicating with the upper end mixed oil outlet channel, a lower layer oil upper portion rising channel and an upper layer oil upper portion rising channel, wherein the upper ends of the lower layer oil upper portion rising channel and the upper layer oil upper portion rising channel correspondingly communicate with the mixing cavity; the lower pump portion comprises a lower pump barrel and a lower plunger, a piston cavity is formed between the upper pump barrel and the lower pump barrel, the side wall of the lower pump barrel is provided with an upper layer oil inlet channel, the first piston cavity communicates with the upper layer oil upper portion rising channel and the upper layer oil inlet channel; the rod body of the lower plunger is internally provided with a lower layer oil lower portion rising channel communicating with a lower layer oil upper portion rising channel and a second piston cavity; each oil channel is directly processed in parts, so that pipeline eccentric wear is greatly reduced and bending deformation of the oil channels is avoid.
Description
technical field [0001] The invention relates to the technical field of layered oil recovery of oil wells, in particular to a separate recovery and mixed extraction oil well pump. Background technique [0002] At present, in the rod pumping system in China, in order to avoid interlayer interference, a variety of layered oil production tools are mainly developed, such as offset valve type separation pump, gas-proof type separation pump, independent inlet and outlet liquid separation Pumps, sliding valve type sub-production pumps and constant pressure check valves, etc., and form a series of sub-production process strings. However, in the existing layered oil recovery tools, a gap is set between the parts as the flow path of the oil circuit. This method is easy to cause the problems of partial wear of the pipeline and bending deformation of the oil channel. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention proposes a s...
Claims
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IPC IPC(8): F04B47/00F04B53/14
CPCF04B47/00F04B53/14
Inventor 刘旭辉王晓龙
Owner YANGTZE UNIVERSITY