CN2221099Y

CN2221099Y - Powerless automatic wax removing device for oil well

Info

Publication number: CN2221099Y
Application number: CN 94247374
Authority: CN
Inventors: 黄克明
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-13
Filing date: 1994-12-13
Publication date: 1996-02-28
Anticipated expiration: 2004-12-13

Abstract

The utility model relates to a powerless automatic wax removing device for an oil well, belonging to the matching device of oil exploitation machinery. The powerless automatic wax removing device for an oil well is used for the wax cleaning and preventing technology of an oil pumping well with a rod pump. The powerless automatic wax removing device for an oil well is characterized in that two pairs of duck mouth reeds are respectively fixed on two pairs of stepping springs, the stepping springs being not separated from rods is ensured through the shapes of the reeds. A groove which is provided with a rolling body is arranged on a flower bar body, and the radial dimension of the groove is changed along an axial direction. A reversing part is provided with a reversing cavity, a rolling body, a reversing body, and a reversing joint. The rolling body is fixed in the reversing body. The reversing body is fixed into the reversing cavity by the axial positioning action of the reversing joint and an oil pipe. Due to the fact that the rolling body is used to use rolling friction to support a pipe wall, not only can the cutting abrasion of the powerless automatic wax removing device for an oil well to the oil pipe in running be reduced, but also the occurring of a well clamping phenomenon is avoided, and the problem that stress is not concentrated to cause cracking can not occur.

Description

Oil well is unpowered automatic Wax remover

The utility model belongs to the oil recovery machiner corollary apparatus, is used for the clear anti-wax technique of sucker-rod pumping well.

Existing oil well Wax remover comprises main part and commutation part (as shown in Figure 1, 2).Wherein main part is made up of stepping spring (1), flower hurdle body (2), oil outlet (3), commutating tooth (4), and the commutation part is made up of upper and lower commutator and is equipped with and is fixed on stopping in the chamber (5) of commutating and encircles (6).Though this oil well Wax remover is simple in structure, in light weight, sturdy and durable, be not subjected to the influence of temperature and pump setting depth, every mouthful of oil well only need be installed a Wax remover, just run between the upper and lower commutator with the oil pumping action of beam hanger is round automatically, to oil pipe and beam hanger while wax removal, but still have the following disadvantages: 1. the stepping spring of main part is formed by 6 up and down, be triangular shape and embrace sucker rod motion, when its during by rod connector (external diameter 46mm), impact is bigger, cause the stepping spring to break away from sucker rod easily, main part is stuck in the oil pipe.2. the commutating tooth of main part is triangular shape support oil pumping tube wall, because use is Hardmetal materials, the long-term at the volley oil pumping tube wall that rubs easily causes transducer wall ' s abrasion.Simultaneously because material is more crisp, the bump foreign material collapse broken easily or come off and block oil well pump in the oil well motion, can't operate as normal.In addition, in running, support the oil well tube wall because commutating tooth is a cusp, when moving to tubing coupling, might be stuck in the box cupling slit, influence is operation normally.

The purpose of this utility model is that main part and commutation part are all improved, thereby overcomes above weak point.

Of the present utility modelly be characterised in that two pairs of duckbilled reeds are separately fixed on two pairs of stepping springs, the groove that rolling element is housed is located on the colored hurdle body, its radial dimension changes vertically, the commutation part has commutation chamber, rolling element, commutation body and commutation joint, rolling element is fixed in the commutation body, and the axial location effect of commutation body utilization commutation joint and oil pipe is fixed in the commutation chamber.Operating principle of the present utility model is: main part is held sucker rod tightly by the duckbilled reed on the stepping spring, together does one-way movement with beam hanger.When entering the commutation part, commutator will spend the rolling element bezel ring, on the hurdle body to be pushed into other direction, and rolling element is changed by the active position of rolling element lid, make main part change traffic direction, withdraw from this commutator, run to another commutator, so come and go, go round and begin again.In the whole service process, by the duckbilled reed with connect the spring lasso and strike off long-pending wax on beam hanger and the oil pipe, reach the paraffin removal effect.

The utility model owing in stepping spring end the duckbilled reed has been installed, guarantees that by the shape of this reed the stepping spring does not take off bar except that the advantage with existing oil well Wax remover.The quantity of the spring of stepping simultaneously changes 2 into by 3 on every limit, has improved the steady of stepping spring operation, can saferly enter next duty exactly.In addition, owing to will change into rolling element with sliding friction support oil pipe tube wall with commutating tooth and support tube wall with rolling friction, not only reduced the cutting abrasion of Wax remover in service to oil pipe, improved the application life of oil pipe, and rolling element is in operation and can breaks away from the resistance of oil pipe seam well, flexible operation has been avoided the generation of card well phenomenon.Prior art stress can not take place and not concentrate the broken problem that collapses that causes originally as spheroid in rolling element in addition.

Description of drawings:

Fig. 1 is the structural representation of existing oil well Wax remover main part.

Fig. 2 is the sectional drawing of existing oil well Wax remover commutation part.

Fig. 3 is the structural representation of the utility model main part.

Fig. 4 is the structural representation of the utility model flower hurdle body.

Fig. 5 is the A-A sectional drawing of the utility model flower hurdle body.

Fig. 6 is the B-B sectional drawing of the utility model flower hurdle body.

Fig. 7 is the C-C sectional drawing of the utility model flower hurdle body.

Fig. 8 is the sectional drawing of the utility model commutation part.

Provide an embodiment of the present utility model below.The utility model comprises main part and commutation part.Main part is a bilateral symmetry, as shown in Figure 1, is processed with oil outlet (3) on the flower hurdle body (2), with upwards fuel-displaced.Two pairs of duckbilled reeds (12) are separately fixed on two pairs of stepping springs (1) by bolt, utilize the accurate control step spring of shape (1) the drive flower hurdle body (2) of duckbilled reed (12) to move on oil pipe, do not take off bar.On stepping spring (1) company's of being fixed by bolts to spring lasso (11), connecting spring lasso (11) screws on flower hurdle body (2) by screw thread, two ends at flower hurdle body (2) are with rolling element bezel ring, (10) symmetrically, and rolling element bezel ring, (10) connects rolling element lid (9) by bolt.The groove (8) that rolling element (7) are housed is located on the colored hurdle body (2), its radial dimension changes vertically, make rolling element (7) that the branch of height be arranged at the volley, utilize rolling element lid (9) to force rolling element (7) to submit, by the axially-movable of rolling element lid (9), make rolling element (7) in the groove (8) of flower hurdle body (2), also do axially-movable, because the radial dimension difference of groove (8), determine the one-way of rolling element (7) motion, relended the purpose that helps the commutation part to reach commutation.

The commutation part is formed (upper and lower symmetry) by two commutators, one of them as shown in Figure 5, the material of rolling element (7) is GCr15, has good intensity and hardness, it is placed in the commutation body (13) by self-locking structure, guarantee that one of them can accurately act on the end of rolling element bezel ring, (10), and move on the end face of the prominent high portion of colored hurdle body (2), finish the commutation task.The axial location effect that commutation body (13) utilizes commutation joint (14) and oil pipe to be produced is fixed in the commutation chamber (5).

Claims

1. unpowered automatic Wax remover of oil well, comprise main part and commutation part, main part has stepping spring (1), flower hurdle body (2), oil outlet (3), the commutation part is by last, following commutator is formed, it is characterized in that two pairs of duckbilled reeds (12) are separately fixed on two pairs of stepping springs (1), the groove (8) that rolling element (7) are housed is located on the colored hurdle body (2), its radial dimension changes vertically, the commutation part has commutation chamber (5), rolling element (7), commutation body (13) and commutation joint (14), rolling element (7) is fixed in the commutation body (13), and commutation body (13) utilizes the axial location effect of commutation joint (14) and oil pipe to be fixed in the commutation chamber (5).

2. according to the said automatic Wax remover of claim 1, it is characterized in that on stepping spring (1) company's of being fixed by bolts to spring lasso (11), connecting spring lasso (11) screws on flower hurdle body (2) by screw thread, rolling element bezel ring, (10) is equipped with at two ends at flower hurdle body (2), and rolling element bezel ring, (10) connects rolling element lid (9) by bolt.