Horizontal oil-well pump

An oil pumping and horizontal technology, applied in the direction of pumps, pump components, variable displacement pump components, etc., can solve problems such as poor sealing effect of the valve valve

Inactive Publication Date: 2005-05-25
DAQING OILFIELD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor sealing effect of fixed Verse valves in existing oil pumps, the present invention provides a horizontal oil well pump, which has the characteristics of good sealing effect when using Verse valves in horizontal wells

Method used

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  • Horizontal oil-well pump

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing:

[0010] like figure 1 As shown, the horizontal oil well pump includes the upper and lower joints (1, 2) and the central pipe body 6, the upper and lower joints (1, 2) are respectively connected with the short connector 4 and the guide cone 5, and the upper joint 1 passes through the jacket 11, the bearing 12 and the upper The retaining ring 13 is connected with the central pipe body 6, the lower joint 2 is connected with the eccentric block 7 through the bearing 12 and the lower retaining ring 14, the upper half of the axis of the eccentric block 7 is grooved, and the central pipe body 6 and the eccentric block 7 are fixed and can be Rotating along the axis of the upper and lower joints (1, 2), the eccentric block 7 is under the action of gravity, and its biased side is always kept downward; the central pipe body 6 is covered with a screen pipe 10, and a round hole is opened...

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Abstract

The present invention relates to a horizontal oil pump. Said pump contains the following components: upper and lower connectors, central tube body, eccentric block, screen pipe and valve seat with valve ball. Said invention also provides their connection mode and structure characteristics.

Description

Technical field: [0001] The invention relates to an oil well pump used in the field of oil production in an oil field, especially a horizontal oil well pump. Background technique: [0002] In the process of oil production in the oil field, some horizontal wells are usually drilled. Since the fixed valve ball under the conventional oil well pump moves along the axis of the pump barrel, this kind of oil pump cannot fall back to the valve seat position in the horizontal well However, it cannot be used. Chinese patent 00234044.5 discloses a directional force-closed oil well pump, which is mainly an improvement of the fixed valve. The spring is used to force the ball of the valve to return, and it is used in some inclined wells to play a very good effect. , but the sealing effect between the valve seat and the valve seat is poor due to gravity, which affects the normal production of the horizontal well. Invention content: [0003] In order to solve the problem of poor sealing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00F04B47/02F04B53/10
Inventor 王德金张宝忠邵艳梅王庆莲王宏
Owner DAQING OILFIELD CO LTD
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