Pump oil extracting device is sprayed in the direct circulation of single tube post in sleeve pipe
Technical field
The utility model is related to a kind of oil(Coal bed gas, shale gas)Exploit in underground equipment, more particularly to a kind of sleeve pipe
Pump oil extracting device is sprayed in the direct circulation of single tube post.
Background technology
Pump oil extracting device is sprayed in existing single tube post direct circulation, applies in general in 5 in sleeve pipes, the spray of this structure
Pump assembly is penetrated, is that oil exploitation contributes, but there is also following shortcoming or deficiency simultaneously:1. pump barrel, pump core unit
External diameter is larger;2. scene removes pump core unit danger coefficient height;3. site operation personnel labor intensity is big;4. change accessory compared with
It is many, cause to waste, cost is high.
The content of the invention
The drawbacks described above that the purpose of this utility model is present aiming at prior art there is provided single tube post in a kind of sleeve pipe just
Cyclic spray pump oil extracting device, using small gauge structure, efficiently solves existing injection pump assembly pump barrel(External diameter 114mm)Diameter compared with
Greatly, it is impossible to adapt to 4 in sleeve pipes(Internal diameter 102mm)The need for.
Its technical scheme is:Including seating nipple(2), lifting leather cup(3), pump core(4), ball-and-seat(5), packer(6),
Sleeve pipe(1)Interior installment work cylinder(2), seating nipple(2)Top pass through pipe nipple(8)Connect top connection(7), seating nipple(2)It is interior
Chamber is provided with pump core(4), pump core(4)By lifting leather cup(3)With seating nipple(2)Inwall connection, and lifting leather cup(3)Bottom
Provided with sealing ring(4.3), pass through sealing ring(4.3)By seating nipple(2)With pump core(4)Between gap sealing, the pump core(4)
Bottom be provided with ball-and-seat(5), the seating nipple(2)Bottom connected pipes(9), the oil pipe(9)Outer wall and sleeve pipe(1)
Inwall between be provided with packer(6).
Above-mentioned pump core(4)Including flow guiding head(4.1), inlet opening(4.2), sealing ring(4.3), nozzle(4.4), diffusion chamber
(4.5), anemostat(4.6), liquid outlet(4.7)And admission chamber(4.8), the flow guiding head(4.1)Downside be provided with inlet opening
(4.2), inlet opening(4.2)With admission chamber(4.8)Connection, the admission chamber(4.8)Bottom connect taper nozzle(4.4),
Nozzle(4.4)Underface and anemostat(4.6)It is corresponding, anemostat(4.6)Inner chamber is the diffusion chamber of taper(4.5), diffusion
Chamber(4.5)Bottom and liquid outlet(4.7)Connection, the anemostat(4.6)Outside and pump core(4)Housing between annular space
To go out sap cavity(4.9).
Above-mentioned seating nipple(2)Lower lumen be provided with annular boss, by annular boss by pump core(4)Lower support, and
Annular boss and pump core(4)Outer wall between be provided with lower seal.
Above-mentioned inlet opening(4.2)For inclined aperture.
Above-mentioned pump core(4)Inlet opening(4.2)The outer wall of downside is provided with groove, passes through groove and lifting leather cup(3)Coordinate.
The largest outside diameter of above-mentioned seating nipple is 83mm, less than the internal diameter 102mm of sleeve pipe, and the maximum outside diameter of pump core is 48mm.
Above-mentioned sleeve pipe(1)For 4 in sleeve pipes.
The utility model has the following advantages that compared with prior art:
1st, the device goes for 4 in sleeve pipes, and its is simple in construction, is easy to operation;
2nd, using single tube post, direct circulation, investing method;
3rd, need that packer is installed below unit;
4th, because sinking pump assembly and seating nipple are separately to enter well, therefore it is relatively easy to construct;
5th, well is not less than 100mm Oil/gas Well, can apply;
6th, it is fluid power launch-work formula, maintenance immersible pump or tune ginseng do not use construction teams;
Rate when oil well production the 7th, can be obviously prolonged;
8th, the maintenance of pump core unit, replacing, maintenance cost are low;
9th, construct simple, strong adaptability, not only in conventional well is particularly suitable for special operation condition Oil/gas Well application.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model;
In upper figure:Sleeve pipe 1, seating nipple 2, lifting leather cup 3, pump core 4, ball-and-seat 5, packer 6, top connection 7, pipe nipple 8, oil
Pipe 9, flow guiding head 4.1, inlet opening 4.2, sealing ring 4.3, nozzle 4.4, diffusion chamber 4.5, anemostat 4.6, liquid outlet 4.7, feed liquor
Chamber 4.8, go out sap cavity 4.9.
Embodiment
Preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein excellent
Select embodiment to be merely to illustrate and explain the utility model, be not used to limit the utility model.
Pump oil extracting device, including seating nipple 2, lifting leather cup are sprayed in the direct circulation of single tube post in the sleeve pipe that the utility model is mentioned
3rd, pump core 4, ball-and-seat 5, packer 6, the installment work cylinder 2 in sleeve pipe 1, the top of seating nipple 2 connects top connection by pipe nipple 8
7, the inner chamber of seating nipple 2 is provided with pump core 4, and pump core 4 is connected by lifting leather cup 3 with the inwall of seating nipple 2, and lifting leather cup 3
Bottom is provided with sealing ring 4.3, by sealing ring 4.3 by the gap sealing between seating nipple 2 and pump core 4, the bottom of the pump core 4
Provided with ball-and-seat 5, the bottom connected pipes 9 of the seating nipple 2, provided with envelope between the outer wall of the oil pipe 9 and the inwall of sleeve pipe 1
Every device 6.
Wherein, pump core 4 includes flow guiding head 4.1, inlet opening 4.2, sealing ring 4.3, nozzle 4.4, diffusion chamber 4.5, anemostat
4.6th, liquid outlet 4.7 and admission chamber 4.8, the downside of the flow guiding head 4.1 are provided with inlet opening 4.2, inlet opening 4.2 and admission chamber
4.8 connections, the bottom of the admission chamber 4.8 connects the nozzle 4.4 of taper, and the underface of nozzle 4.4 is relative with anemostat 4.6
Should, the inner chamber of anemostat 4.6 is the diffusion chamber 4.5 of taper, and the bottom of diffusion chamber 4.5 is connected with liquid outlet 4.7, the anemostat
Annular space between 4.6 outside and the housing of pump core 4 is sap cavity 4.9.
In addition, the lower lumen of seating nipple 2 is provided with annular boss, by annular boss by the lower support of pump core 4, and annular
Lower seal is provided between boss and the outer wall of pump core 4.
Above-mentioned inlet opening 4.2 is inclined aperture, and the outer wall in the downside of inlet opening 4.2 is provided with groove, by groove with carrying
Leather cup 3 is risen to coordinate;The largest outside diameter of above-mentioned seating nipple is 83mm, and less than the internal diameter 102mm of sleeve pipe, the maximum outside diameter of pump core is
48mm, above-mentioned sleeve pipe 1 is 4 in sleeve pipes.
When going into the well, seating nipple lower end connection ball-and-seat, packer, screen casing and plug, pump core unit treat that job execution terminates,
Oil pipe pressure test is met require after, put into from well head, it is necessary to change pump core parameter or when tubing string removes construction, in reacting cycle fluid power
Under effect, pump core unit is risen to well head.
It is described above, only it is preferred embodiment of the present utility model, any those skilled in the art may profit
Equivalent technical scheme is changed the utility model or is revised as with the technical scheme of above-mentioned elaboration.Therefore, foundation
Any simple modification or substitute equivalents that the technical solution of the utility model is carried out, belong to the greatest extent what the utility model was claimed
Scope.