CN102619744A

CN102619744A - Sand-preventive, gas-proof and anti-scale tubing pump with long plunger and without fixed valve

Info

Publication number: CN102619744A
Application number: CN2012100789210A
Authority: CN
Inventors: 李广青
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-23
Filing date: 2012-03-23
Publication date: 2012-08-01

Abstract

The invention relates to a sand-preventive, gas-proof and anti-scale tubing pump with a long plunger and without a fixed valve. The tubing pump comprises a beam hanger, an oil tube, an oil pump joint, a scale deposition barrel, a middle joint, a pump barrel, the plunger and an oil pump coupling, the lower end of the beam hanger is connected with the plunger, the oil tube, the oil pump joint, the scale deposition barrel and the middle joint which are mutually connected are successively sleeved outside the beam hanger from top to bottom, the lower end of the middle joint is connected with the pump barrel, the lower end of the pump barrel is successively connected with the oil pump coupling, an anti-collision nipple, an anti-collision coupling, a sand deposition tube and a bottom hoop, an anti-collision plug is arranged in an inner hole at the lower end of the anti-collision nipple, a plug is disposed in an inner hole at the lower end of the bottom hoop, and an oil drainage and exhaust hole is arranged on the pump barrel. Jumping degree of liquid when entering the pump is increased, so that scale can be effectively prevented from retaining and gathering, and separation and settlement of sand are facilitated. A traditional fixed valve coupling is omitted, a mechanism under the pump is simplified, pump leakage or blockage is avoided, and pump jamming is also avoided.

Description

The tubing pump of the long-plunger sand control gas-tight antiscale of no standing valve

Technical field

The present invention relates to a kind of tubing pump that does not have the long-plunger sand control gas-tight antiscale of standing valve.

Background technique

In the mechanical oil recovery, faults such as fouling of sand card and gas lock often in use often take place in common employed tubing pump; Sometimes also because of thick colloidal material too much blocks standing valve, meanwhile, each oil field is often changed former oil well pump to send in passing when workover eration and is repaiied, and is fit into well with new pump or through the oil well pump of repairing again; Because of limited by mender's technical specifications, it is not good enough that most oil well pumps are repaired the back effect in repair procedures for old oil well pump, and the frequent generating pump of oil well pump of going into well after the repairing once more leaks or the pump efficiency reduction, has caused adverse effect to oil producing operation.

Summary of the invention

The technical problem that the present invention solved provides a kind of tubing pump that does not have the long-plunger sand control gas-tight antiscale of standing valve.

For solving above-mentioned technical problem, the technological scheme that the present invention takes:

A kind of tubing pump that does not have the long-plunger sand control gas-tight antiscale of standing valve; Its special way is: comprise beam hanger, oil pipe, oil pump joint, heavy dirt tube, transition joint, pump barrel, plunger, oil pump box cupling; The lower end of beam hanger is connected with plunger; The outer sheathed successively from top to bottom oil pipe that is connected with each other of beam hanger, oil pump joint, heavy dirt tube, transition joint, the lower end of transition joint is connected with pump barrel, and the lower end of pump barrel connects oil pump box cupling, anti-touching short section, anti-collision box cupling, sand sediment pipe, end hoop successively; Be provided with anti-collision flower plug in the lower end endoporus of anti-touching short section, be provided with dead stifled in the lower end endoporus of end hoop; Described pump barrel is provided with the draining exhaust port.

Above-mentioned draining exhaust port is arranged on the lower end of plunger top dead center.

Compared with prior art, beneficial effect of the present invention:

The delay polymerization of fouling composition can be effectively avoided in the increase that the present invention makes liquid go into jump degree in the process of pump, and the separation of also being convenient to the chiltern thing is sunk; No longer continue to use traditional standing valve box cupling, make mechanism's simplification under the pump, avoided the generation of pump leakage in the past or blocking phenomenon; Heavy dirt tube is set can various junks storages on this pump be avoided taking place holddown.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.

Referring to Fig. 1; The present invention includes beam hanger 1, oil pipe 2, oil pump joint 3, heavy dirt tube 4, transition joint 5, pump barrel 7, plunger 8, oil pump box cupling 9; The lower end of beam hanger 1 is connected with plunger 8; The outer sheathed successively from top to bottom oil pipe that is connected with each other of beam hanger 12, oil pump joint 3, heavy dirt tube 4, transition joint 5, the lower end of transition joint 5 is connected with pump barrel 7, and the lower end of pump barrel 7 connects oil pump box cupling 9, anti-touching short section 10, anti-collision box cupling 12, sand sediment pipe 13, the end successively and binds round 14; Be provided with anti-collision flower plug 11 in the lower end endoporus of anti-touching short section 10, be provided with dead stifled 15 in the lower end endoporus of end hoop 14; Described pump barrel 7 is provided with draining exhaust port 6.

Above-mentioned draining exhaust port 6 is arranged on the lower end of plunger 8 top dead centers, and when plunger 8 went upward to specified position, draining exhaust port 6 was wished match 8 to break away from back liquid and got into thus; When plunger 8 is descending, promptly sets the Bottom Runby scope again plunger 8 is closed draining exhaust port 6.

When plunger 8 goes upward to when just surmounting draining exhaust port 6, to inhale in advance under the effect of cavity pressure difference in mineshaft annulus and plunger 8 lower ends, pit shaft liquid will pour a pump 7 fast, in pouring process, can most of chiltern thing be separated downwards, and gas is also separated thereupon; When plunger 8 is descending, nearer because of it apart from draining exhaust port 6, can rapidly it be closed, plunger 8 inner traveling valves are opened rapidly, make liquid flow into its inner chamber; When plunger 8 goes out well, can well head be proposed directly plunger 8, draining exhaust port 6 can be let out liquid in the oil pipe 2 to well, need not to install oil drainer.

Claims

1. tubing pump that does not have the long-plunger sand control gas-tight antiscale of standing valve; It is characterized in that: comprise beam hanger (1), oil pipe (2), oil pump joint (3), heavy dirt tube (4), transition joint (5), pump barrel (7), plunger (8), oil pump box cupling (9); The lower end of beam hanger (1) is connected with plunger (8); The outer sheathed successively from top to bottom oil pipe that is connected with each other (2) of beam hanger (1), oil pump joint (3), heavy dirt tube (4), transition joint (5); The lower end of transition joint (5) is connected with pump barrel (7); The lower end of pump barrel (7) connects oil pump box cupling (9), anti-touching short section (10), anti-collision box cupling (12), sand sediment pipe (13), end hoop (14) successively; Be provided with anti-collision flower plug (11) in the lower end endoporus of anti-touching short section (10), be provided with dead stifled (15) in the lower end endoporus of end hoop (14); Described pump barrel (7) is provided with draining exhaust port (6).

2. the tubing pump of the long-plunger sand control gas-tight antiscale of no standing valve according to claim 1, it is characterized in that: described draining exhaust port (6) is arranged on the lower end of plunger (8) top dead center.