CN213597926U

CN213597926U - Opening and closing device for steam injection and oil extraction integrated pipe column

Info

Publication number: CN213597926U
Application number: CN202022794090.XU
Authority: CN
Inventors: 岳琪玫; 焦璐瑶
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-07-02
Anticipated expiration: 2030-11-27

Abstract

The utility model relates to the technical field of steam injection and oil extraction equipment, in particular to an opening and closing device for a steam injection and oil extraction integrated tubular column, which comprises an opening and closing mechanism and a slider body; the opening and closing mechanism comprises an upper joint, a lower joint, an outer cylinder, an inner cylinder, an upper lock tongue and a lower lock tongue, wherein the cylinder wall of the outer cylinder is sequentially provided with an upper limiting groove, a gas injection hole and a lower limiting groove from top to bottom; an upper lock tongue hole and a lower lock tongue hole are respectively formed in the upper end and the lower end of the cylinder wall of the outer cylinder body, and the upper lock tongue and the lower lock tongue are respectively placed in the upper lock tongue hole and the lower lock tongue hole; the middle part of slider body is equipped with annular bellying, and the external diameter of bellying and the internal diameter adaptation of interior barrel still have seted up vertical oil groove of leading on the bellying. The utility model discloses can realize the fast switch over to annotating vapour, oil recovery operation to the operation construction work load that has significantly reduced has objective economic benefits.

Description

Opening and closing device for steam injection and oil extraction integrated pipe column

Technical Field

The utility model relates to an annotate vapour oil recovery equipment technical field, concretely relates to an headstock gear for annotating vapour oil recovery integration tubular column.

Background

In a thick oil block of an oil field, the yield of thick oil is increased year by year, the development of the thick oil becomes an important capacity take-over place, but the production viscosity of part of wells is very high and reaches more than 100000mPa.s, so that crude oil in a shaft of the oil well is difficult to lift, and after the oil well sees the oil, a polished rod slowly descends to cause abnormal production, and the thermal oil recovery has to be carried out by steam huff and puff.

At present, the steam huff and puff recovery of the thickened oil needs to be carried out through the processes of steam injection, well stewing, blowout, pressure, well washing, pump descending and pump starting, and the operation of the rotary pumping process has a plurality of disadvantages to the recovery of the thickened oil:

firstly, the oil can not be pumped as soon as possible after the blowout, and the peak oil production period is shortened;

the working procedures of well washing, well killing and the like in the operation process are easy to cause cold damage to the oil layer;

thirdly, the construction amount of the replacement operation of the steam injection and oil extraction pipe column is large, and the operation cost is high;

and fourthly, the working environment of workers is dangerous.

Therefore, the inventor wants to design a starting and stopping device, can connect on current tubular column, realizes annotating vapour, the quick switching of oil recovery to reduce the operation work load of construction, practiced thrift the cost, and gained considerable economic benefits.

Disclosure of Invention

The utility model aims at providing an open-close device for annotating vapour oil recovery integration tubular column to the defect that prior art exists, its simple structure is reasonable, can realize the fast switch over to annotating vapour, oil recovery operation to reduce operation construction work load, had objective economic benefits.

The technical scheme of the utility model is that:

an opening and closing device for a steam injection and oil extraction integrated tubular column comprises an opening and closing mechanism and a sliding block body;

the opening and closing mechanism comprises an upper joint, a lower joint, an outer cylinder, an inner cylinder, an upper lock tongue and a lower lock tongue, wherein the upper joint and the lower joint are detachably connected to the upper end and the lower end of the outer cylinder respectively;

an upper lock tongue hole and a lower lock tongue hole which are matched with the upper limiting groove and the lower limiting groove are respectively formed in the upper end and the lower end of the cylinder wall of the outer cylinder body, the upper lock tongue and the lower lock tongue are respectively placed in the upper lock tongue hole and the lower lock tongue hole, the transverse lengths of the upper lock tongue and the lower lock tongue are both larger than the wall thickness of the inner cylinder body, and chamfers are respectively arranged at the end parts of the two sides of the upper lock tongue and the lower lock tongue;

the two ends of the slider body are respectively provided with an upper connector and a lower connector, the middle part of the slider body is provided with an annular bulge, the outer diameter of the bulge is matched with the inner diameter of the inner cylinder, and the bulge is also provided with a longitudinal oil guide groove;

the upper end and the lower end of the protruding portion, the upper end and the lower end of the upper limiting groove and the lower limiting groove are respectively provided with a slope, and the slopes are matched with the chamfers at the two side ends of the upper lock tongue and the lower lock tongue.

Preferably, the upper lock tongue and the lower lock tongue are both arc-shaped or wave-shaped spring pieces.

Preferably, the gas injection hole is a plurality of holes and is arranged on the outer cylinder body in a surrounding manner at the same horizontal height.

Preferably, the oil guide groove is multiple and is circumferentially arranged on the convex part of the slider body.

Preferably, the sliding contact end faces of the outer cylinder and the inner cylinder are plated with smooth electroplated layers.

Preferably, the inner diameters of the upper joint, the lower joint and the inner cylinder are the same.

Compared with the prior art, the utility model, have following advantage:

the utility model has simple and reasonable structure, and can push the inner cylinder body to go up and down through the matching of the slider body with the upper spring bolt and the lower spring bolt respectively, thereby realizing the opening and closing of the gas injection hole and further realizing the quick switching of gas injection operation and oil extraction operation;

for in the current operation, need to change operations such as tubular column, equipment more high-efficient between gas injection operation and the oil recovery operation, in addition the utility model discloses manufacturing cost and maintenance cost are very cheap to can extensively use widely in each big oil field.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of an opening and closing mechanism;

FIG. 3 is a schematic view of the assembly of the outer barrel and the inner barrel;

FIG. 4 is a schematic structural view of a slider body;

fig. 5 is a schematic structural view of an arc bolt;

fig. 6 is a schematic structural view of a wavy bolt;

in the figure: 1. the opening and closing mechanism comprises an opening and closing mechanism 2, a sliding block body 101, an upper joint 102, an upper locking tongue 103, an inner cylinder 104, a lower locking tongue 105, an outer cylinder 106, a lower joint 107, a gas injection hole 108, an upper limiting groove 109, a lower limiting groove 110, an upper locking tongue hole 111, a lower locking tongue hole 112, a chamfer 201, an upper connector 202, a bulge 203, an oil guide groove 204, a lower connector 301 and a slope.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1

Referring to fig. 1 to 4, an opening and closing device for a steam injection and oil extraction integrated tubular column comprises an opening and closing mechanism 1 and a sliding block body 2.

The starting and stopping mechanism 1 comprises an upper joint 101, a lower joint 106, an outer cylinder 105, an inner cylinder 103, an upper locking tongue 102 and a lower locking tongue 104, wherein the upper joint 101 and the lower joint 106 are detachably connected to the upper end and the lower end of the outer cylinder 105 respectively.

The upper limiting groove 108, the gas injection hole 107 and the lower limiting groove 109 are sequentially formed in the cylinder wall of the outer cylinder 105 from top to bottom, the inner cylinder 103 is connected in the cavity of the outer cylinder 105 in a sliding mode, and the gas injection hole 107 is opened and closed through up-down sliding of the outer cylinder 105.

The upper end and the lower end of the cylinder wall of the outer cylinder body 105 are respectively provided with an upper lock tongue hole 110 and a lower lock tongue hole 111 which are matched with the upper limiting groove and the lower limiting groove 109 on 108, and the upper lock tongue 102 and the lower lock tongue 104 are respectively arranged in the upper lock tongue hole 110 and the lower lock tongue hole 111.

The transverse lengths of the upper lock tongue 102 and the lower lock tongue 104 are both larger than the wall thickness of the inner cylinder 103, and chamfers 112 are arranged at the two side ends of the upper lock tongue 102 and the lower lock tongue 104.

The both ends of slider body 2 are equipped with interface 201 and lower interface 204 respectively, and the middle part of slider body 2 is equipped with annular bellying 202 to the external diameter of bellying 202 and the internal diameter adaptation of interior barrel 103 have still seted up vertical oil groove 203 of leading on the bellying 202.

The upper end and the lower end of the protruding part 202 and the upper end and the lower end of the upper limiting groove 108 and the lower limiting groove 109 are respectively provided with a slope surface 301, and the slope surfaces 301 are matched with the chamfers 112 at the two side ends of the upper locking tongue 102 and the lower locking tongue 104.

In addition, the upper joint 101, the lower joint 106 and the inner cylinder 103 may have the same inner diameter, thereby facilitating the slider body 2 to pass through the upper joint 101, the lower joint 106 and the inner cylinder 103.

The working process is as follows:

when transferring oil-well pump and pump oil application operation:

firstly, the opening and closing mechanism 1 is installed on a first oil pipe on an oil well pump and is lowered to a designed position in a well along with the oil well pump;

next, assembling a well head lower plunger and a sucker rod, installing the slider body 2 at a first joint of the sucker rod, and putting the sucker rod into the well after a sucker rod string is prepared;

the next step is: the sliding block body 2 descends to the lower lock tongues 104 in the inner cylinder 103 along with the sucker rod, and the sliding block body 2 pushes the lower lock tongues 104 to drive the inner cylinder 103 to move downwards as the outer diameter of the sliding block body 2 is larger than the distance between the lower lock tongues 104;

next, the inner cylinder 103 moves downwards to the lower limit groove 109 and the lower latch hole 111, and then the lower latch 104 moves outwards to the lower limit groove 109 and the lower latch hole 111, at this time, the slider body 2 can penetrate out of the inner cylinder 103 downwards, and the gas injection hole 107 on the outer cylinder 105 is closed by the downward movement of the inner cylinder 103;

and next, when the sucker rod is lowered to the working position, the pump is collided to confirm and lift the anti-impact distance, and the well completion pumping operation is carried out.

When the steam injection is in operation:

the whole operation process is opposite to the process;

firstly, the sucker rod string is lifted upwards, so that the upper end of the convex part 202 on the slider body 2 is contacted with the upper bolt 102, the upper bolt 102 is pushed to move upwards, and the inner cylinder 103 is driven to move upwards;

next, the inner cylinder 103 moves upward to the upper limit groove 108 and the upper latch hole 110, and then the upper latch 102 moves outward to the upper limit groove 108 and the upper latch hole 110, at this time, the slider body 2 passes upward from the inner cylinder 103, and the gas injection hole 107 on the outer cylinder 105 is opened by moving the inner cylinder 103 upward;

and finally, opening a steam injection channel to implement steam injection construction.

The utility model has simple and reasonable structure, and the inner cylinder body 103 can be pushed to move upwards and downwards through the matching of the slider body 2 with the upper locking tongue 102 and the lower locking tongue 104 respectively, thereby realizing the opening and closing of the gas injection hole 107 and further realizing the quick switching of gas injection operation and oil extraction operation;

Example 2

The embodiment is further optimized on the basis of embodiment 1, and specifically comprises the following steps:

referring to fig. 5 and 6, the upper latch tongue 102 and the lower latch tongue 104 are each a curved or wavy spring plate.

By designing the upper lock tongue 102 and the lower lock tongue 104 as spring pieces having elasticity, the cooperation with the upper limit groove 108, the lower limit groove 109, and the slider body 2 is further facilitated by the elasticity of the lock tongues themselves.

Example 3

the gas injection hole 107 is plural and arranged on the outer cylinder 105 surrounding at the same level.

The oil guide groove 203 is plural and arranged on the boss 202 of the slider body 2 in a surrounding manner.

By designing the gas injection hole 107 and the oil guide groove 203 in plural, the efficiency of the gas injection and oil recovery operation can be improved.

The end surfaces of the outer cylinder 105 and the inner cylinder 103 which are in sliding contact are both electroplated with smooth electroplated layers, and the smooth contact surfaces increase the smoothness of sliding between the outer cylinder 105 and the inner cylinder 103.

The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the spirit of the present invention, and the changed contents still belong to the protection scope of the present invention.

Claims

1. The utility model provides an headstock gear for annotating steam oil recovery integration tubular column which characterized in that: comprises an opening and closing mechanism and a sliding block body;

2. The opening and closing device for the integrated tubular column for steam injection and oil extraction of claim 1, which is characterized in that: the upper lock tongue and the lower lock tongue are both arc-shaped or wave-shaped spring pieces.

3. The opening and closing device for the integrated tubular column for steam injection and oil extraction of claim 1, which is characterized in that: the gas injection holes are multiple and are arranged on the outer cylinder body in a surrounding mode at the same horizontal height.

4. The opening and closing device for the integrated tubular column for steam injection and oil extraction of claim 1, which is characterized in that: the oil guide grooves are multiple and are circumferentially arranged on the convex part of the slider body.

5. The opening and closing device for the integrated tubular column for steam injection and oil extraction of claim 1, which is characterized in that: the sliding contact end faces of the outer cylinder body and the inner cylinder body are electroplated with smooth electroplated layers.

6. The opening and closing device for the integrated tubular column for steam injection and oil extraction of claim 1, which is characterized in that: the inner diameters of the upper joint, the lower joint and the inner cylinder body are the same.