Unite oil well pump oil valve
A technology for oil inlet valves and oil well pumps, which is applied to pump components, variable displacement pump components, components of pumping devices for elastic fluids, etc., which can solve the problems of high cost, many procedures, and long working hours, etc., and achieve The effect of reducing working procedures, saving working costs, and shortening working time
Inactive Publication Date: 2009-03-18
白霞
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Problems solved by technology
This method has many procedures, long operation time and high cost
Method used
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Embodiment Construction
[0011] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0012] It consists of pressure rod 1, valve cover 2, oil inlet valve ball 3, oil inlet valve seat 4, ejector rod 5, valve seat joint 6, and screen pipe 7. Pressure rod 1 is installed on the upper part of valve cover 2, and oil inlet valve ball 3 , The oil inlet valve seat 4 is installed in the valve cover 2, the oil inlet valve ball 3 is under the pressure rod 1, the ejector rod 5 is installed in the valve seat joint 6, the ejector rod 5 passes through the oil inlet valve seat 4, and the ejector rod 5 The upper end is under the ball 3 of the oil inlet valve.
[0013] A screen pipe 7 is installed at the bottom of the valve cover 2, and the upper end surface of the screen pipe 7 withstands the lower end surface of the push rod 5.
[0014] The contact portion between the outer cylindrical surface of the pressure rod 1 and the valve cover 2 is an interference fit. ...
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The invention relates to a communicated oil inlet valve for an oil-well pump, which consists of a pressure lever, a valve cover, an oil inlet valve ball, an oil inlet valve seat, a mandril and a valve seat joint, wherein the pressure lever is arranged on the upper part of the valve cover; the oil inlet valve ball and the oil inlet valve seat are arranged inside the valve cover; the oil inlet valve ball is positioned under the pressure lever; the mandril is arranged inside the valve seat joint; the mandril passes through the oil inlet valve seat; the upper end of the mandril is positioned under the oil inlet valve ball; the lower part of the valve cover is provided with a sieve tube the upper end face of which supports the lower end face of the mandril; a contact position of an external cylindrical surface of the pressure lever and the valve cover adopts interference fit; the large-diameter position of the mandril is provided with a plurality of upright holes which are crossed with the small-diameter position of the mandril; and the upper end of the mandril is positioned inside the oil inlet valve seat, and the mandril separates the oil inlet valve ball from the oil inlet valve seat and drives the upper part and the lower part of the oil inlet valve seat to be communicated. The communicated oil inlet valve for the oil-well pump can transmit the hydraulic pressure to the lower side of the oil-well pump and can seal a hydraulic packer on the lower part of the oil-well pump, thereby being capable of putting down the hydraulic packer with the pump. When the oil inlet valve is used on an oil field where the hydraulic packer is put down, the operating procedure can be reduced; the operating time can be shortened; and the operating cost can be saved.
Description
1. Technical field [0001] The invention is an oil production equipment used for oil production in an oil field, and is a component of an oil well pump, in particular, an oil inlet valve of a connected type oil well pump. 2. Background technology [0002] There are many types of oil well pumps used in oil fields, but they all have certain deficiencies and cannot meet certain special requirements. When a pump is required to realize hydraulic packer seat sealing, the commonly used oil well pumps are blocked by the oil inlet valve. , Liquid cannot be injected from the upper oil pipe of the pump to the lower oil pipe of the pump, so the hydraulic packer cannot be sealed. Such as patent number: 98208542.7 long plunger self-draining oil well pump, when the long plunger is lifted out of the pump barrel, the liquid in the oil pipe on the pump can only flow into the casing from the pump, and cannot flow into the pump, and cannot be used for pumping into the well. Oil well for injecti...
Claims
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IPC IPC(8): F04B53/10
Inventor 艾和平沈长富王红芹付显威
Owner 白霞