CN2536772Y

CN2536772Y - Bayonet sucker rod stabilizer

Info

Publication number: CN2536772Y
Application number: CN 02232666
Authority: CN
Inventors: 李辉; 尹立春
Original assignee: Haotian Oil Production Fittings Manufacturing Co Ltd Ranghulu District Daqi
Current assignee: Haotian Oil Production Fittings Manufacturing Co Ltd Ranghulu District Daqi
Priority date: 2002-05-14
Filing date: 2002-05-14
Publication date: 2003-02-19
Anticipated expiration: 2012-05-14

Abstract

The utility model relates to a torsional clamping sucker rod centralizer of a pumping well in the oil field with a sucker rod for mechanical oil pumping, solving the problem that the prior centralizer cannot be used repeatedly, which is characterized in that a plurality of openings (4) are arranged on the lower and the upper part of the symmetrical side of the upper and the lower side of the tube (2) with an iron-pestle-shaped intracavity; a convex edge (1) is tightly attached to the outer wall of the tube (2); an inclined hole (3) with a sucker rod inside is arranged on the wall of the convex edge (1) and the tube (2) at the angle of alpha; the inclined hole (3) is communicated with the openings (4) on the tube (2); the injection molding of a plurality of steel bars are arranged in the wall of the corresponding convex edge (1) at the upper part of the tube (2). The utility model has the advantages of having convenient assembly and disassembly and high intensity, and avoiding the breakage of the centralizer which influences the rework in the well.

Description

Turn round the cassette oil pumping rod centering device

Technical field

The utility model relates to oilfield pumping well and utilizes the used centralizer of sucker rod machinery oil pumping, belongs to and turns round the cassette oil pumping rod centering device.

Background technology

At present in the oil field before rod-pumped well carries out sucker-rod pumping, centralizer need be connected on the sucker rod or with the sucker rod substitute centralizer and be connected on the sucker rod.When connecting, need heat involutory centralizer descendant for cutter hits centralizer could centralizer is involutory, waste time and energy, disposable use can not be reused, cost is higher; Moreover the contact of pipe nipple formula centralizer is more, makes rod broken easily, and it is heavier and be forced to the oil pumper closing well to take off the bar phenomenon, influences ordinary production.

The utility model content

Technical problem to be solved of the present utility model is to be to avoid the weak point that exists in the above-mentioned present technology, and a kind of reusable cassette oil pumping rod centering device of turning round is provided.

The technical scheme that the utility model adopted is: turn round the cassette oil pumping rod centering device, it is characterized in that: inner chamber has spacious hole in the following top of heteropleural symmetry side up and down like the pipe of " iron pestle " shape, after being glued with fin, the pipe outer wall on its fin and tube wall, has the built-in inclined hole of sucker rod that angle is α, this inclined hole communicates with pipe spacious hole up and down, is injected with reinforcing bar in the corresponding fin wall in pipe top.

Above-mentioned angle is that α is 45 °.

The advantage that the utility model had is: owing to have inclined hole on the fin on the pipe of this centralizer and the pipe outer wall, make that only needing when centralizer is installed that sucker rod is inserted the back rotation along this inclined hole can be stuck in the top pier nose of sucker rod in the groove of inner chamber like the pipe top of " iron pestle " shape, back and forth dismounting, convenient and practical, cost is cheap relatively; Moreover be injected with reinforcing bar at pipe in the upper wall, make that the intensity of this centralizer is relatively large, avoided the centralizer fracture and well operations is reprocessed in influence.

Description of drawings

Accompanying drawing 1 is that structure of the present utility model is partly cutd open figure;

Accompanying drawing 2 is A-A sectional views of Fig. 1;

Accompanying drawing 3 is B-B sectional views of Fig. 1.

The 1-fin, the 2-pipe, the 3-inclined hole, 4-opens the hole, the 5-reinforcing bar.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described:

In conjunction with shown in Fig. 2,3, this is turned round the cassette oil pumping rod centering device and constitutes on 2 bases at pipe, and manages 2 inner chambers like " iron pestle " shape, and a groove is arranged on inner chamber top as Fig. 1, for the top pier nose of sucker rod is stuck in the groove on pipe 2 tops; The following top of pipe heteropleural symmetry side about in the of 2 has spacious hole 4, the spacious hole 4 of promptly managing 2 top and the bottom is in the same side (heteropleural) not, but opposite side, the top (be exactly manage 2 top symmetries with pipe homonymy place, 2 bottom) of just managing the bottom of 2 top opposite sides and managing 2 bottom opposite sides has spacious hole 4, be glued with straight shape fin 1 or spirality fin 1 at pipe 2 walls, in order to keep the unimpeded of oil stream; Have angle [alpha] and be 45 ° inclined hole 3 on its (1,2) wall, this hole 3 communicates with the spacious hole 4 of pipe 2 about, makes that only needing when centralizer is installed that sucker rod is inserted after the rotation of back top pier nose with sucker rod along this inclined hole 3 is stuck in the groove of managing 2 tops and gets final product; In corresponding fin 1 wall in pipe 2 tops, be injected with reinforcing bar 5, make that the intensity of this centralizer is relatively large, avoided the centralizer fracture and well operations is reprocessed in influence.

When this centralizer need connect sucker rod, do not need to heat involutory centralizer, do not need artificial cutter to hit centralizer yet, only need that sucker rod is inserted the back rotation along inclined hole 3 and can finish installation, only need opposite spin to get final product during dismounting, back and forth dismounting, convenient and practical, cost is cheap relatively, adapts to the oil field and promotes the use of.

Claims

1, a kind of relate to the oil field utilize sucker rod machinery oil pumping used turn round the cassette oil pumping rod centering device, it is characterized in that: inner chamber has spacious hole (4) in the following top of heteropleural symmetry side up and down like the pipe (2) of " iron pestle " shape, pipe (2) outer wall be glued with fin (1) back its (1,2) have the built-in inclined hole (3) of sucker rod that angle is α on the wall, this hole (3) communicates with pipe (2) spacious hole (4) up and down, is injected with reinforcing bar (5) in corresponding fin (1) wall in pipe (2) top.

2, the cassette oil pumping rod centering device of turning round according to claim 1 is characterized in that: angle is that α is 45 °.