CN2366583Y

CN2366583Y - Solid plunger oil pump

Info

Publication number: CN2366583Y
Application number: CN 99207197
Authority: CN
Inventors: 宋德福
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-12
Filing date: 1999-04-12
Publication date: 2000-03-01
Anticipated expiration: 2009-04-12

Abstract

The utility model relates to a solid plunger oil pump for oil production at an oil field. The utility model is characterized in that a pump barrel and an extension tube are connected with a flow dividing joint, and the lower part of which is connected with an oil outlet valve. The outer part of the oil outlet valve is a flow separating tube, and the upper part of which is connected with the flow dividing joint. The lower part of the flow separating tube is connected with an oil inlet valve, and the lower part of the oil inlet valve is connected with a special joint. An outer tube is arranged at a position from the pump barrel to the outer part of the oil inlet valve, and the inner part of the outer tube is a liquid flow and sand depositing channel After a flow channel is changed, the oil outlet valve is not installed on the plunger, which causes the diameter of the valve ball of the utility model not to be limited by the diameter of the pump. The diameter of the valve ball can be enlarged. Thus, the valve ball works flexibly and reliably, and a stressed member is the outer tube which has large rigidity, and resists pulling and pressing. The utility model can be provided with a separating packer to produce oil in a delaminating mode, and can produce on a well with high sand containing amount.

Description

Solid plunger oil-well pump

The utility model belongs to oil field oil recovery machiner equipment, particularly a kind of solid plunger oil-well pump.

In existing oil well pump, generally be that outlet valve is installed on plunger, fluid passes through from plunger.When the oil well pump diameter hour, be subjected to size restrictions, valve ball, runner are less, valve ball can be malfunctioning, causes air pump inoperative.Because pump is little, its cross sectional moment of inertia is little, and tension pressure energy power is low, can not be with packet to carry out oil production by layer under the pump.Conventional pumps does not possess the sand control function yet, can not contain on the sand drain at height to use.

The utility model provides a kind of solid plunger oil-well pump, make its valve ball diameter not be subjected to the pump diameter restrictions by changing runner, stressed member rigidity is big, the sand setting passage is arranged, can increase the valve ball diameter, can be with the packet oil production by layer, can contain on the sand drain at height and produce, thus the reliability of raising small pump diameter oil well pump.

The purpose of this utility model is achieved in that by plunger, pump barrel, extension pipe, outer tube, tap, outlet valve, forms every stream pipe, oiling valve, special joint.Plunger is solid, for reducing processing cost, the pump barrel that cooperates with plunger is designed to short pump barrel, and the pump barrel bottom is an extension pipe, the extension pipe bottom connects tap, the tap bottom connects outlet valve, and the outlet valve outside is every the stream pipe, connects tap every stream pipe top, the bottom connects oiling valve, the oiling valve bottom connects special joint, pump barrel, extension pipe, tap, is outer tube every stream pipe, oiling valve outside, outer tube bottom connection special joint.When plunger was up, fluid was from the bottom to top through special joint, oiling valve, enter in the pump every stream pipe and the annular pass of outlet valve, the by-pass of tap.When plunger was descending, fluid is the middle passage of the annular pass through the by-pass of tap, every stream pipe and outlet valve, outlet valve, tap from top to bottom, entered pump barrel, extension pipe, tap, managed the sand setting passage that forms with outer tube every flowing.Liquid is upwards discharged from the sand setting passage, and sand sinks to tail pipe under the pump through the sand setting passage.During the oil production by layer of band packet, external force is born by outer tube, and when height contained the sand drain stop pumping, sand setting sank under the pump through sand setting passage, special joint.

The utility model is solid plunger oil-well pump, and uneasiness takes on fuel tap on the runner back-plunger by changing, and makes its valve ball diameter not be subjected to the pump diameter restrictions, can increase the valve ball diameter, thereby valve ball work flexibility and reliability; Stressed member is an outer tube, and rigidity is big, is not afraid of tension and compression, can be with the packet oil production by layer, and the sand setting passage has been arranged, and can contain on the sand drain at height to produce.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Accompanying drawing is the solid plunger oil-well pump structure of a utility model sectional view.Among the figure: the 1st, plunger, the 2nd, pump barrel, the 3rd, extension pipe, the 4th, outer tube, the 5th, tap, the 6th, outlet valve, the 7th, every the stream pipe, the 8th, oiling valve, the 9th, special joint, promptly the utility model is by plunger 1, pump barrel 2, extension pipe 3, outer tube 4, tap 5, outlet valve 6, form every stream pipe 7, oiling valve 8, special joint 9.Plunger 1 is solid.In order to reduce processing cost, the pump barrel 2 that cooperates with plunger 1 is designed to short pump barrel, pump barrel 2 bottoms are extension pipe 3, and extension pipe 3 bottoms connect tap 5, and tap 5 bottoms connect outlet valve 6, outlet valve 6 outsides are every stream pipe 7, connect tap 5 every stream pipe 7 tops, the bottom connects oiling valve 8, and oiling valve 8 bottoms connect special joint 9, pump barrel 2, extension pipe 3, tap 5, be outer tube 4 every stream pipe 7, oiling valve 8 outside, outer tube 4 bottoms connection special joint 9.When plunger 1 was up, fluid was from bottom to up through special joint 9, oiling valve 8, enter in the pump every annular pass C, the by-pass A of tap 5 of stream pipe 7 with outlet valve 6.When plunger 1 is descending, fluid is from top to bottom through the by-pass of tap 5 A, annular pass C, the outlet valve 6 every stream pipe 7 and outlet valve 6, the middle channel B of tap 5, the sand setting passage D that enters pump barrel 2, extension pipe 3, tap 5, forms every stream pipe 7 and outer tube 4.Liquid is upwards discharged from sand setting passage D, and sand sinks to tail pipe under the pump through sand setting passage D.During the oil production by layer of band packet, external force is born by outer tube 4, and when height contained the sand drain stop pumping, sand setting sank under the pump through sand setting passage D, special joint 9.

Claims

1, a kind of solid plunger oil-well pump, by plunger (1), pump barrel (2), extension pipe (3), outer tube (4), tap (5), outlet valve (6), every stream pipe (7), oiling valve (8), special joint (9) is formed, it is characterized in that pump barrel (2), extension pipe (3) bottom connects tap (5), tap (5) bottom connects outlet valve (6), outlet valve (6) outside is every stream pipe (7), connect tap (5) every stream pipe (7) top, the bottom connects oiling valve (8), oiling valve (8) bottom connects special joint (9), pump barrel (2), extension pipe (3), tap (5), every stream pipe (7), oiling valve (8) outside is outer tube (4), and outer tube (4) bottom connects special joint (9).

2, solid plunger oil-well pump according to claim 1 is characterized in that plunger (1) is a solid body.