CN2903362Y

CN2903362Y - Multifunctional centering guide, wax scraping, oil increasing device

Info

Publication number: CN2903362Y
Application number: CN 200620117669
Authority: CN
Inventors: 杨山; 郑纪侃; 闫伟峰
Original assignee: 郑纪侃
Priority date: 2006-06-05
Filing date: 2006-06-05
Publication date: 2007-05-23
Anticipated expiration: 2016-06-05

Abstract

A multi-functional stabilizing, paraffin scraping and oil increasing device resolves the problem of single function of current stabilizers. The upper end of a central rod (1) is connected with an oil pumping rod coupling (4) under which the central rod (1) is sleeved with a movable stabilizing body (3) by screw threads. A fixation stabilizing body (2) is fixed on the central rod (1) under the movable stabilizing body (3). The outer surfaces of the movable stabilizing body (3) and the fixation stabilizing body (2) are provided with at least one groove (6) along the axis direction of the central rod (1). The multi-functional stabilizing, paraffin scraping and oil increasing device can achieve the effects of not only stabilizing, partial abrasion prevention and paraffin scraping for current down-hole oil pumping rod, but also pumping assistance and improving the pumping efficiency to increase oil.

Description

Multi-functionally set upright, paraffin cutting, oil increasing device

Technical field:

The utility model relates to a kind of oil field downhole tool, particularly a kind ofly multi-functionally sets upright, paraffin cutting, oil increasing device.

Background technology:

At present along with the deepening continuously of oil field development, pumping production extensively utilizes in the oil field.And when driving the sucker rod repeating motion by oil pumper, the eccentric wear phenomenon of sucker rod and oil pipe is more and more serious.In order to solve eccentric wear, the centralizer that uses on the oil field is of all kinds at present, and these centralizer fixed forms are improved, the effect of anti-eccentric wear is improved, but their effect is single, and the liquid area of passage generally dwindles, and causes the liquid measure of adopting of oil well to descend.

The utility model content:

In order to solve the deficiency in the background technology, the utility model provides a kind of and multi-functionally sets upright, paraffin cutting, oil increasing device, this product can satisfy conventional down-hole sucker rod and set upright the effect that prevents eccentric wear and paraffin cutting, takes out, improves pump efficiency and reach the purpose that increases oil because the structure of this product can play again to help.

The technical solution of the utility model is: this is multi-functional sets upright, paraffin cutting, oil increasing device comprise center-pole, rod collar is threaded on the center-pole, be with movable centralizer body on the center-pole of rod collar below, be fixed with fixedly centralizer body on the center-pole of centralizer body below, movable centralizer body and fixedly the external surface of centralizer body have at least one groove along the axis direction of center-pole.

Above-mentioned movable centralizer body and fixedly centralizer body have 3 grooves, and the protruding stupefied corresponding cooperation on movable centralizer body upper groove and the fixing centralizer body, movable centralizer body epirelief stupefied with fixing centralizer body on the corresponding cooperation of groove; The bar axle of center-pole is positive hexagonal prism body.

The utlity model has following beneficial effect: centralizer body of the present utility model is divided into two parts up and down, top is that movable lower part is fixed, centralizer body has 3 cylinders that are the carbon fiber of the equally distributed groove in 120 degree angles up and down, wrong mutually 60 degree of centralizer body about during installation, hold up lower body to fit snugly on the axostylus axostyle up and down, this product can satisfy conventional down-hole sucker rod and set upright the effect that prevents eccentric wear and paraffin cutting, takes out, improves pump efficiency and reach the purpose that increases oil because the structure of this product can play again to help.

Description of drawings:

Accompanying drawing 1 is a structure sectional view of the present utility model;

Accompanying drawing 2 is A-A sectional views in the accompanying drawing 1;

Accompanying drawing 3 is B-B sectional views in the accompanying drawing 1.

1-center-pole among the figure, 2-is centralizer body fixedly, the movable centralizer body of 3-, the 4-rod collar, 5-is protruding stupefied, the 6-groove.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing: as shown in Figure 1, this is multi-functional sets upright, paraffin cutting, oil increasing device comprise center-pole 1, the center-pole 1 upper end rod collar 4 that is threaded, be with movable centralizer body 3 on the center-pole 1 of rod collar 4 belows, be fixed with fixedly centralizer body 2 on the center-pole 1 of movable centralizer body 3 belows, movable centralizer body 3 and fixedly the external surface of centralizer body 2 have at least one groove 6 along the axis direction of center-pole 1.

Better help the effect of taking out in order to reach, movable centralizer body 3 and fixedly centralizer body 2 have 3 grooves 6, and the groove 6 corresponding cooperations in the protruding stupefied 5 corresponding cooperations on movable centralizer body 3 upper grooves 6 and the fixing centralizer body 2, movable centralizer body 3 epireliefs stupefied 5 and fixing centralizer body.

In order to guarantee that movable centralizer body 3 does not rotate, the bar axle of center-pole 1 is positive hexagonal prism body.

This oil increasing device can be positioned at any position on oil well pump top, is installed between sucker rod and the box cupling, and during down stroke, movable centralizer body 3 moves on liquid flow impact power that relative motion produces and tubing wall frictional force effect lower edge axis, opens fluid course; Movable centralizer body 3 moves down at oil pressure and tubing wall frictional force effect lower edge axis during upstroke, the fixedly centralizer body 2 that is fixed, and confining liquid circulation road promote upper liquid with sucker rod simultaneously, share the fluid column load that the part oil well pump bears, reach the purpose that improves pump efficiency and increase liquid measure.For the oil well of high oil-gas ratio, because the big micromutation in fluid course cross section, effectively homogenize reduces wellbore fluids density and fluid column load, prevents gas slip, reduces flow resistance, plays certain stream effect that helps.

Claims

1, a kind ofly multi-functionally set upright, paraffin cutting, oil increasing device, comprise center-pole (1), it is characterized in that: rod collar (4) is threaded on the center-pole (1), be with movable centralizer body (3) on the center-pole (1) of rod collar (4) below, be fixed with fixedly centralizer body (2) on the center-pole (1) of movable centralizer body (3) below, movable centralizer body (3) and fixedly the external surface of centralizer body (2) have at least one groove (6) along the axis direction of center-pole (1).

2, according to claim 1ly multi-functionally set upright, paraffin cutting, oil increasing device, it is characterized in that: movable centralizer body (3) and fixedly centralizer body (2) have 3 grooves (6), and the corresponding cooperation of groove (6) in protruding stupefied (5) the corresponding cooperation on movable centralizer body (3) upper groove (6) and the fixing centralizer body (2), movable centralizer body (3) epirelief stupefied (5) and fixing centralizer body.

3, according to claim 1 and 2ly multi-functionally set upright, paraffin cutting, oil increasing device, it is characterized in that: the bar axle of center-pole (1) is positive hexagonal prism body.