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Pumping assistor

An oil pump and rotary mixer technology, applied in the field of pumping aids, can solve problems such as low liquid linear velocity

Active Publication Date: 2015-03-11
新疆赢华石油技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for the problem of low liquid linear velocity, there is no solution at home and abroad

Method used

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Embodiment Construction

[0030] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] Such as figure 1 As shown, the embodiment of the present invention provides a pumping aid for an oil well pump, and the pumping aid includes: a screen tube 6, a liquid inlet cylinder 4, a rotary mixer 5, an oil pipe 2, a flow rate changing device 3 and an injector 1.

[0032] Among them, the screen 6 is used to filter oil well produced fluid.

[0033] The liquid inlet cylinder 4 includes an upper section, a middle section and a lower section. The cross-sectional area of ​​the upper section of the liquid inlet cylinder 4 gradually decreases with the flow direction of the oil well output fluid. The lower section of the liquid inlet cylinder 4 is connected to the screen pipe 6 connected to the upper end.

[0034] A rotary mixer 5 is arranged in the liquid inlet cylinder 4, such as image 3 with Figure 4 As shown, t...

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Abstract

The invention discloses a pumping assistor used for an oil well pump. The pumping assistor comprises a sieve tube, a liquid inlet barrel, a rotary mixer, an oil tube, a flow rate changing device and an ejector, wherein the sieve tube is used for filtering oil well output liquid; the liquid inlet barrel comprises an upper section, a middle section and a lower section, and the lower section of the liquid inlet barrel is connected with the upper end of the sieve tube; the rotary mixer is arranged inside the liquid inlet barrel, and comprises a rotating shaft and blades arranged on the rotating shaft; the upper end of the oil tube is connected with a pump seat of the oil well pump, and the lower end of the oil tube is connected with the upper section of the liquid inlet barrel; the flow rate changing device is arranged inside the oil tube, and comprises at least one stage of flow rate transducer; the ejector is arranged at the top end of the oil tube and is positioned inside the pump seat; the ejector comprises an ejection barrel and a spiral plate arranged on the outer side of the ejection barrel. Under the precondition of unchanging formation pressure and feed liquid capacity, electricity is not used, namely the instant line speed of the oil well outlet liquid can be improved, so that pressure energy is changed into kinetic energy, the liquid flow rate is quickened, the liquid flow state is changed, the filling coefficient of the pump is improved, and the yield is increased.

Description

technical field [0001] The invention relates to the technical field of oil exploitation, in particular to a pumping aid for an oil pump. Background technique [0002] At present, more than 90% of the oil wells in my country are exploited by pumps, but the pump type and diameter are different. No matter which pump diameter is used, the average pump efficiency is lower than 50%. The main reasons affecting the pump efficiency are: (1) Gas influence; the state of oil flow is annular flow, the middle is gas, the circle is oil, and an air lock is formed at the bottom of the fixed valve. After the valve is opened, the gas advances to the pump and occupies most of the space , the oil re-enters the pump, which seriously affects the filling coefficient of the pump; (2) frictional resistance; due to the high viscosity and high frictional resistance of crude oil, the amount of liquid entering the pump is affected, resulting in low pump efficiency; (3) the flow area of ​​the oil pipe is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00F04B53/00
CPCE21B43/121F04B53/00
Inventor 姜飞
Owner 新疆赢华石油技术服务有限公司
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