CN206617145U

CN206617145U - Gas well underground rotational flow atomization water drainage gas production device

Info

Publication number: CN206617145U
Application number: CN201621467777.XU
Authority: CN
Inventors: 徐建宁; 王怡; 沈彬
Original assignee: Xian Shiyou University
Current assignee: Xian Shiyou University
Priority date: 2016-12-29
Filing date: 2016-12-29
Publication date: 2017-11-07
Anticipated expiration: 2026-12-29

Abstract

Gas well underground rotational flow atomization water drainage gas production device, fishing head, which is connected to, streams device top, streams device bottom connection guide shell upper end, and the threaded upper ends connection of guide shell lower end and cone, cone lower end outer wall is provided with the ring-shaped step of projection；Elastomer sleeve is on cone outer wall and by cutting off connection, and cutting is cut off, and elastic physical efficiency is slided on cone outer wall；The one end for the spring catch that the connection of elastomer outer wall is curved using steel wire；One end of spring catch other end connecting spring is round nose, the other end of spring is hook solid, when underground biphase gas and liquid flow streams device by two layers inside and outside the device, fluid flow state changes, fluid high-speed rotation produces shearing force and centrifugal force, the liquid film of high velocity air and low speed impacts mutually, sheared, rub obtains tiny droplet so as to destroy surface tension of liquid and viscous force --- realize atomization, when the particle diameter of drop is less than a certain critical numerical value, just hydrops is continued using gas well self-energy to discharge pit shaft, so as to improve gas well recovery ratio.

Description

Gas well underground rotational flow atomization water drainage gas production device

Technical field

The utility model is related to the downhole tool in the production gas technology field of oil field, and more particularly to gas well underground rotational flow atomization is arranged Hydromining device of air.

Background technology

Along with deepening continuously for gas field development, the production water and hydrops problem of gas well become increasingly conspicuous in production process, effectively Drainage gas recovery turn into ensure gas field middle and later periods reasonable Efficient Development key.When pit shaft fluidised form is ring mist flow, gas Well takes liquid effect preferably, gas well liquid loading to middle and later periods, and pit shaft fluidised form is from bottom to top slug flow, stirring stream, ring spray, gas well production Can be poor, shaft bottom starts hydrops when not reaching critical liquid carrying flow rate, and gas well can not be produced normally, and gas well plug-ging can be caused when serious Stop production.Therefore pit shaft fluidised form influences larger to gas well fluid-carrying capability.According to the pressure characteristic of natural gas well underground gas-liquid mixture, Atomizing is carried out to liquid phase stream using rotational flow atomization device, pit shaft fluidised form is can effectively improve.Therefore need badly very much rational in infrastructure Rotational flow atomization device.

The content of the invention

In order to overcome the defect of above-mentioned prior art, the purpose of this utility model is to provide gas well underground rotational flow atomization row Hydromining device of air, by means of natural gas well self-energy, when biphase gas and liquid flow is by the device, fluid high-speed rotation is produced Shearing force and centrifugal force destroy the surface tension of liquid, are atomized liquid crushing, become the smaller drop of particle diameter, with gas phase band Go out well head to discharge shaft bottom hydrops.

In order to achieve the above object, the technical solution of the utility model is：

Gas well underground rotational flow atomization water drainage gas production device, including fishing head 1, fishing head 1, which is connected to, streams the top of device 3, around The bottom of device 3 connection guide shell 5 upper end is flowed, the lower end of guide shell 5 is connected with the threaded upper ends of cone 6, and the lower end outer wall of cone 6 is set There is the ring-shaped step of projection；Elastomer 11 is enclosed on the outer wall of cone 6 and by cutting off 9 connections, in the case of cutting off 9 cuttings, bullet Property body 11 can be slided on the outer wall of cone 6；The one end for the spring catch 12 that the connection of the outer wall of elastomer 11 is curved using steel wire；Spring catch One end of 12 other end connecting spring 13 is round nose, and the other end of spring 13 is hook solid.

The device 3 that streams is constituted by inside and outside two layers, and internal layer, which streams device 15 and is socketed in outer layer, to stream in device 14, and outer layer streams device 2-5 roads A helical blades 2 are laid with 14 outside wall surface, it is solid that internal layer, which streams device 15, and internal layer is streamed in the outside wall surface of device 15 Also 2-5 roads B helical blades 16 are laid with.

Guide shell 5 is circumferentially to be uniformly distributed 3 fluid issuings 4 on hollow-core construction, the wall of guide shell 5.

Cone 6 is cylinder hollow-core construction.

Elastomer 11 is made up of annular solid 7 and latch plate 8, is connected with two symmetrically in an end face of annular solid 7 and is hung down Straight latch plate 8.

Two described medial surfaces of latch plate 8 have a raised block 10 respectively.

The beneficial effects of the utility model：The utility model is effectively improved pit shaft fluidised form, and when underground, biphase gas and liquid flow passes through During the device, fluid high-speed rotation, produces shearing force and centrifugal force destroys the surface tension of liquid, becomes liquid crushing atomization The smaller drop of particle diameter, when the particle diameter of drop is less than a certain critical numerical value, just continues hydrops using gas well self-energy Pit shaft is discharged, gas well recovery ratio is improved.A liquid boundary layer is generated in inner-walls of duct simultaneously, friction is reduced and by rubbing Caused pressure drop is wiped, so as to remove gas well internal water accumulation, increases gas production.

Brief description of the drawings

Fig. 1 is view when the utility model is gone into the well.

Fig. 2 is state diagram when the utility model is locking.

Fig. 3 is the structural representation for streaming device 3；Wherein Fig. 3 a are side views, and Fig. 3 b are front views.

Fig. 4 is the explosive view for streaming device 3；Wherein Fig. 4 a are that outer layer streams the schematic diagram of device 14, and Fig. 4 b are that internal layer streams device 15 Schematic diagram.

Embodiment

The utility model is described in detail with reference to the accompanying drawings and detailed description.

As shown in Figure 1 and Figure 2, gas well underground rotational flow atomization water drainage gas production device, including fishing head 1, fishing head 1 are connected to The top of device 3 is streamed, the bottom of device 3 connection guide shell 5 upper end is streamed, the lower end of guide shell 5 is connected with the threaded upper ends of cone 6, cone 6 Lower end outer wall is provided with the ring-shaped step of projection；Elastomer 11 is enclosed on the outer wall of cone 6 and by cutting off 9 connections, cuts off 9 cuttings In the case of, elastomer 11 can be slided on the outer wall of cone 6；The spring catch 12 that the connection of the outer wall of elastomer 11 is curved using steel wire One end；One end of the other end connecting spring 13 of spring catch 12 is round nose, and the other end of spring 13 is hook solid.

Reference picture 3, Fig. 4, the device 3 that streams are constituted by inside and outside two layers, and internal layer, which streams device 15 and is socketed in outer layer, streams device 14 Interior, outer layer, which streams, is laid with 2-5 roads A helical blades 2 in the outside wall surface of device 14, and it is solid that internal layer, which streams device 15, and internal layer streams Also 2-5 roads B helical blades 16 are laid with the outside wall surface of device 15.

Cone 6 is cylinder hollow-core construction.

Elastomer 11 is made up of annular solid 7 and latch plate 8, is connected with two symmetrically in an end face of annular solid 7 and is hung down Straight latch plate 8,

Two described medial surfaces of latch plate 8 have a raised block 10 respectively, block for transferring to during certain depth Firmly cone 6 and above section.

The fishing head 1, stream device 3 and guide shell 5 and can be processed as an entirety, can also mutually be interconnected by screw thread Connect, convenient dismounting, the device that streams of the helical blade with different pitch can be changed according to shaft structure, expands the scope of application.

Operation principle of the present utility model is：

1st, work progress：Reference picture 1.Before construction, being blocked the latch plate of the bottom of elastomer 11 with spring 13 makes latch plate Bottom keeps tightening state, completely unimpeded in oil pipe to ensure during drifting；Steel wire delivery tool series winding is connected on fishing head 1 Portion, slowly at the uniform velocity transfers the utility model, when transferring to design well depth position, above carries steel wire, spring 13 is flicked, and elastomer 11 expands Open and be in close contact with tube inner wall；Decentralization, cuts off 9, cone 6 is descending, and elastomer 11 is expanded to maximum gauge and lower end is solid It is stuck between tubing coupling, realizes and fix.Refering to Fig. 2.

2nd, the course of work：Refering to Fig. 2.After driving a well, gas-liquid mixture fluid is entered by the lower section of cone 6, then by cone 6 Chamber flows into the inner chamber of guide shell 5, is flowed out and is flowed up by the fluid issuing of guide shell 5, when streaming device 3 by inside and outside two layers, Fluid flow state changes, and fluid high-speed rotation produces shearing force and centrifugal force, the liquid film of high velocity air and low speed impacts mutually, Shearing, friction obtain tiny droplet so as to destroy surface tension of liquid and viscous force --- atomization is realized, when the grain of drop When footpath is less than a certain critical numerical value, just hydrops is continued using gas well self-energy to discharge pit shaft, so as to improve gas well harvesting Rate.

Claims

1. gas well underground rotational flow atomization water drainage gas production device, it is characterised in that including fishing head (1), fishing head (1) be connected to around Device (3) top is flowed, device (3) bottom connection guide shell (5) upper end is streamed, guide shell (5) lower end and the threaded upper ends of cone (6) connect Connect, cone (6) lower end outer wall is provided with the ring-shaped step of projection；Elastomer (11) is enclosed on cone (6) outer wall and by cutting off (9) connect, in the case of cutting off (9) cutting, elastomer (11) can be slided on cone (6) outer wall；Elastomer (11) outer wall connects Connect one end of the spring catch (12) curved using steel wire；One end of spring catch (12) other end connecting spring (13) is round nose, The other end of spring (13) is hook solid.

2. gas well underground rotational flow atomization water drainage gas production device according to claim 1, it is characterised in that described to stream device (3) constituted by inside and outside two layers, internal layer, which streams device (15) and is socketed in outer layer, to stream in device (14), and outer layer streams the outside wall surface of device (14) On be laid with 2-5 roads A helical blades (2), internal layer streams device (15) to be solid, and internal layer streams also equal in the outside wall surface of device (15) It is laid with 2-5 roads B helical blades (16).

3. gas well underground rotational flow atomization water drainage gas production device according to claim 1, it is characterised in that guide shell (5) is 3 fluid issuings (4) are circumferentially uniformly distributed on hollow-core construction, guide shell (5) wall.

4. gas well underground rotational flow atomization water drainage gas production device according to claim 1, it is characterised in that cone (6) is circle Cylinder hollow-core construction.

5. gas well underground rotational flow atomization water drainage gas production device according to claim 1, it is characterised in that elastomer (11) by Annular solid (7) and latch plate (8) composition, two symmetrical and vertical latch plates are connected with an end face of annular solid (7) (8)。

6. gas well underground rotational flow atomization water drainage gas production device according to claim 5, it is characterised in that two described bullets The medial surface of spring plank 8 has a raised block (10) respectively.