CN217206408U

CN217206408U - Concentric double-tube separate injection tool for large-drift-diameter drillable packer

Info

Publication number: CN217206408U
Application number: CN202220964721.4U
Authority: CN
Inventors: 杨春军; 张晓卫; 孙胜平; 张晓辉; 卫文博
Original assignee: Shaanxi Yinhe Oil Gas Engineering Technology Services Co ltd
Current assignee: Shaanxi Yinhe Oil Gas Engineering Technology Services Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-08-16
Anticipated expiration: 2032-04-25

Abstract

The utility model relates to a concentric double-barrelled instrument of dividing of packer can be bored to big latus rectum, which comprises an outer shell, the inner wall of shell has concentric pipe assembly through mounting panel fixed mounting, concentric pipe assembly's inside is provided with the shutoff subassembly, concentric pipe assembly includes the outer tube of fixed mounting at the mounting panel inner wall, the inner wall fixed mounting of outer tube has built-in frame. This concentric double-barrelled instrument of dividing of packer can be bored to big latus rectum, through install ring type seal additional at the breach inner wall, in normal drainage work, plug up the shutoff piece through hydraulic push rod and connect the pipe, can let the outer tube be in the encapsulated situation, prevent that the waste residue from entering into in the outer tube, withdraw the back as hydraulic push rod with the shutoff piece, the clear water can directly pour into through inner tube and outer tube, owing to install the filter cap additional at the butt joint outside of pipe, and through installing the filter plate additional inside the filter cap, can effectually prevent that the impurity in the oil from getting into outer tube or inner tube, thereby the risk of pipeline blocking has been reduced, make oil recovery efficiency obtain the guarantee.

Description

Concentric double-tube separate injection tool for large-drift-diameter drillable packer

Technical Field

The utility model relates to an oil field development equipment technical field specifically is concentric double-barrelled instrument of dividing of packer can be bored to big latus rectum.

Background

In the field of oil exploitation, a water injection mode is adopted to work in cooperation with oil extraction equipment, water is injected into an oil layer by the water injection equipment, oil is spatially extruded and supplemented, a power source generated by oil flowing is achieved, and underground cavities are prevented from being generated.

The water column tubular column of general adoption because impurity in the oil can sneak into the aquatic, more or less enters into the tubular column in, especially when not extracting oil, generally also does not carry out the water injection, and impurity is carried out easily like inside the tubular column, and the inside rust matter of tubular column etc. also can block up outlet isotructure, and the outlet blocks up and influences water injection efficiency, causes the unmatching between oil recovery and the water injection, influences oil recovery efficiency, has proposed the concentric double-barrelled instrument of allowwing of packer of big latus rectum for this application.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a concentric double-barrelled instrument of dividing of packer can be bored to big latus rectum possesses advantages such as preventing blockking up, has solved impurity in the oil and can sneak into the aquatic, more or less enters into the tubular column in, the inside rust matter of tubular column etc. also can block up outlet isotructure, and the outlet blocks up influences water injection efficiency, causes the mismatch between oil recovery and the water injection, influences the problem of oil recovery efficiency.

For the above-mentioned purpose of preventing blockking up of realization, the utility model provides a following technical scheme: concentric double-barrelled instrument of dividing of packer can be bored to big latus rectum, which comprises an outer shell, the inner wall of shell has concentric pipe assembly through mounting panel fixed mounting, concentric pipe assembly's inside is provided with the shutoff subassembly, concentric pipe assembly includes the outer tube of fixed mounting at the mounting panel inner wall, the inner wall fixed mounting of outer tube has built-in frame, the inner wall fixed mounting of built-in frame has the solenoid valve, the inner wall fixed mounting of solenoid valve has the inner tube, the shutoff subassembly includes fixed mounting at the inner tube inner wall and is located the mount of inner tube below, the inside fixed mounting of mount has hydraulic push rod, hydraulic push rod output fixed mounting has the shutoff piece.

Furthermore, an inner mounting ring is fixedly mounted on the inner wall of the shell and below the mounting plate, and an inner thread is formed in the inner wall of the inner mounting ring.

Furthermore, the mounting plate is a circular ring plate, 4 water through holes are uniformly formed in the surface of the mounting plate at equal intervals, the water through holes are arc-shaped, and the central angle of each water through hole is between 60 and 70 degrees.

Further, the bottom fixed mounting of outer tube has the butt joint pipe, and the breach with the shutoff piece adaptation is seted up to the interior roof of butt joint pipe, and shutoff piece and breach are the inverted circular truncated cone shape.

Further, the inner wall fixed mounting of breach has ring type seal, ring type seal's interior roof offer with the reverse ring groove of shutoff piece adaptation, ring type seal is corrosion resistant rubber circle.

Furthermore, the surface of the butt joint pipe is provided with a filter cover in a threaded manner, the bottom wall of the filter cover is fixedly provided with a filter plate, and the diameter of the filter plate is equal to the inner diameter of the butt joint pipe.

Further, the outer shell, the outer tube and the inner tube are in a concentric and coaxial state.

Compared with the prior art, the utility model provides a concentric double-barrelled instrument of dividing of packer can be bored to big latus rectum possesses following beneficial effect:

this concentric double-barrelled instrument of dividing of packer can be bored to big latus rectum, through install ring type seal additional at the breach inner wall, in normal drainage work, plug up the shutoff piece through hydraulic push rod and connect the pipe, can let the outer tube be in the encapsulated situation, prevent that the waste residue from entering into in the outer tube, withdraw the back as hydraulic push rod with the shutoff piece, the clear water can directly pour into through inner tube and outer tube, owing to install the filter cap additional at the butt joint outside of pipe, and through installing the filter plate additional inside the filter cap, can effectually prevent that the impurity in the oil from getting into outer tube or inner tube, thereby the risk of pipeline blocking has been reduced, make oil recovery efficiency obtain the guarantee.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

fig. 3 is a schematic top view of the mounting plate of the present invention.

In the figure: the device comprises a shell 1, a mounting plate 2, a water through hole 3, an inner mounting ring 4, an outer pipe 5, an inner pipe 6, an electromagnetic valve 7, an inner frame 8, a fixing frame 9, a hydraulic push rod 10, a plugging block 11, an annular sealing ring 12, a filter cover 13 and a filter plate 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the concentric double-tube separate injection tool for the large-bore drillable packer comprises a housing 1, wherein a concentric tube assembly is fixedly installed on the inner wall of the housing 1 through an annular mounting plate 2, and a plugging assembly is arranged inside the concentric tube assembly.

The concentric tube assembly comprises an outer tube 5 fixedly installed on the inner wall of the installation plate 2, an internal frame 8 is fixedly installed on the inner wall of the outer tube 5, an electromagnetic valve 7 is fixedly installed on the inner wall of the internal frame 8, an inner tube 6 is fixedly installed on the inner wall of the electromagnetic valve 7, and the outer shell 1, the outer tube 5 and the inner tube 6 are in a concentric and coaxial state.

Wherein, the surface of the mounting plate 2 is provided with 4 arc-shaped water through holes 3 at equal intervals for the circulation of oil and water, and the central angle of the water through holes 3 is between 60 and 70 degrees.

The plugging assembly comprises a fixing frame 9 which is fixedly installed on the inner wall of the outer pipe 5 and located below the inner pipe 6, a hydraulic push rod 10 is fixedly installed inside the fixing frame 9, and a plugging block 11 is fixedly installed at the output end of the hydraulic push rod 10.

The bottom end of the outer pipe 5 is fixedly provided with a butt joint pipe, the surface of the butt joint pipe is provided with a filter cover 13 in a threaded manner, and the bottom wall of the filter cover 13 is fixedly provided with a filter plate 14 with the diameter equal to the inner diameter of the butt joint pipe, so that impurities in petroleum can be intercepted, and the pipeline can be prevented from being blocked.

Secondly, offer the breach 51 with the adaptation of plugging block 11 at the interior roof of butt joint pipe, plugging block 11 and breach 51 are inverted circular truncated cone shape for plugging block 11 can imbed the butt joint pipe better, guarantees its sealed effect.

And the inner wall of the gap 51 is fixedly provided with an annular sealing ring 12, the inner top wall of the annular sealing ring 12 is provided with an inverted ring groove matched with the plugging block 11, and the annular sealing ring 12 is a corrosion-resistant rubber ring.

When the blocking block 11 is extended by the hydraulic push rod 10 until the annular sealing ring 12 is blocked by the blocking block 11, the outer pipe 5 can be closed.

In order to conveniently butt joint the large-drift-diameter drillable packer, an inner mounting ring 4 is fixedly mounted on the inner wall of the shell 1 and below the mounting plate 2, and an inner thread is formed on the inner wall of the inner mounting ring 4.

This embodiment is when using, in normal drainage work, start hydraulic push rod 10, through hydraulic push rod 10 with 11 downstream of shutoff piece, until stopping up the butt joint pipe, can let outer tube 5 be in the closure state, prevent that the waste residue from entering into outer tube 5, withdraw the back as hydraulic push rod 10 with shutoff piece 11, the clear water can directly pour into through inner tube and outer tube, owing to install filter cap 13 additional in the butt joint outside of tubes portion, and through installing filter plate 14 additional inside filter plate 13 filtering cap 13, can effectually prevent that the impurity in the oil from getting into outer tube 5 or inner tube 6, thereby pipeline blocking's risk has been reduced, make oil recovery efficiency obtain the guarantee.

The electrical components shown herein are electrically connected to a main controller and a power supply, the main controller can be a conventional known device controlled by a computer, and the conventional power connection technology disclosed in the prior art is not described in detail herein.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Concentric double-barrelled instrument of dividing of packer can be bored to big latus rectum, including shell (1), its characterized in that: the inner wall of the shell (1) is fixedly provided with a concentric tube assembly through a mounting plate (2), and a plugging assembly is arranged in the concentric tube assembly;

the concentric tube assembly comprises an outer tube (5) fixedly mounted on the inner wall of the mounting plate (2), a built-in frame (8) is fixedly mounted on the inner wall of the outer tube (5), an electromagnetic valve (7) is fixedly mounted on the inner wall of the built-in frame (8), and an inner tube (6) is fixedly mounted on the inner wall of the electromagnetic valve (7);

the plugging assembly comprises a fixing frame (9) fixedly installed on the inner wall of the outer pipe (5) and located below the inner pipe (6), a hydraulic push rod (10) is fixedly installed inside the fixing frame (9), and a plugging block (11) is fixedly installed at the output end of the hydraulic push rod (10).

2. The large-drift-diameter drillable packer concentric double-tube separate injection tool according to claim 1, characterized in that: an inner mounting ring (4) is fixedly mounted on the inner wall of the shell (1) and located below the mounting plate (2), and an inner thread is formed in the inner wall of the inner mounting ring (4).

3. The large-drift-diameter drillable packer concentric double-tube separate injection tool according to claim 1, characterized in that: the mounting plate (2) is a circular ring plate, 4 water through holes (3) are formed in the surface of the mounting plate (2) at equal intervals, the water through holes (3) are arc-shaped, and the central angle of each water through hole (3) is between 60 and 70 degrees.

4. The large-drift-diameter drillable packer concentric double-tube separate injection tool according to claim 1, characterized in that: the bottom fixed mounting of outer tube (5) has the butt joint pipe, and breach (51) with shutoff piece (11) adaptation are seted up to the interior roof of butt joint pipe, and shutoff piece (11) and breach (51) are inverted frustum shape.

5. The large-drift-diameter drillable packer concentric double-tube separate injection tool according to claim 4, wherein: the inner wall fixed mounting of breach (51) has ring packing (12), and the annular groove of falling with shutoff piece (11) adaptation is seted up to the interior roof of ring packing (12), and ring packing (12) are corrosion-resistant rubber circle.

6. The large-drift-diameter drillable packer concentric double-tube separate injection tool according to claim 4, wherein: the surface thread of the butt joint pipe is provided with a filter cover (13), the bottom wall of the filter cover (13) is fixedly provided with a filter plate (14), and the diameter of the filter plate (14) is equal to the inner diameter of the butt joint pipe.

7. The large-drift-diameter drillable packer concentric double-tube separate injection tool according to claim 1, characterized in that: the outer shell (1), the outer tube (5) and the inner tube (6) are in a concentric and coaxial state.