CN109630075A - A kind of oil/gas well slug flow combined gas slug crushing device and method - Google Patents
A kind of oil/gas well slug flow combined gas slug crushing device and method Download PDFInfo
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- CN109630075A CN109630075A CN201910139719.6A CN201910139719A CN109630075A CN 109630075 A CN109630075 A CN 109630075A CN 201910139719 A CN201910139719 A CN 201910139719A CN 109630075 A CN109630075 A CN 109630075A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 239000007791 liquid phase Substances 0.000 claims abstract description 13
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 230000008901 benefit Effects 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 230000007812 deficiency Effects 0.000 claims description 3
- 238000013019 agitation Methods 0.000 abstract description 4
- 239000012071 phase Substances 0.000 abstract description 4
- 230000010349 pulsation Effects 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 53
- 230000000694 effects Effects 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
Abstract
The present invention provides a kind of oil/gas well slug flow combined gas slug crushing device and method, is related to slug flow bubble breaking field.Broken bulb apparatus by landing bar, newel, wire, corrugated tube wall and porous plate can be vibrated form.Landing bar supports newel, carries out to slug tentatively broken.Wire can be vibrated along newel spiral, You Shuzhi solid matter cloth, solved the problems, such as because the broken bubble of the random agitation of fluid is incomplete.Corrugated tube wall increases turbulence pulsation and fluid impact, and liquid film is dispersed in gas phase.Porous plate is by bubble breaking at the minute bubbles met the requirements.Remnants liquid film is flowed out by tangent eyelet at tube wall, prevents liquid phase from gathering.Two kinds of broken bubble modes are organically combined and are improved by modular design by the present invention, it is insufficient to be made up single mode, and use corrugated tube wall, are improved turbulence intensity, are improved gas-liquid distribution, are reduced droop loss, extend oil/gas well turn(a)round, increase oil-gas field development benefit.
Description
Technical field
The present invention relates to oil/gas well slug flow bubble breaking fields, and specifically a kind of oil/gas well slug flow underground gas-liquid is divided
From combined gas slug crushing device before device.
Background technique
Oil/gas well was produced to the middle and later periods, and as strata pressure continues to decline, bottom pressure reduces, and fluid rises along pit shaft
Pressure reduces, and main flow pattern is changed into slug flow by annular flow in pit shaft, and will maintain the long period with this high gas-liquid ratio state
Production.Production unit for stable yields synergy, can generally take in the wellbore the artificial lifts such as sucker rod pump, submersible electric pump measure with
Recovery ratio is improved, while being equipped with underground gas-liquid separator the influence that reduces gas to lifting implement.And slug flow is because of one section
The special construction of one section of liquid of gas, gas occupy wellbore centre in the form of gaseous core, and liquid phase is attached to tube wall with form of liquid film.A large amount of gas
Body enters separator, and the processing capacity beyond underground gas-liquid separator causes separator to fail, subsequently into lifting implement,
Influence tool lifting efficiency, long this cause to cavitate, and reduce the service life of tool.When the tolerance of entering tool is excessive, cause
The problems such as tool gas lock, underload are shut down, shortens oil/gas well turn(a)round, influences the normal production of oil/gas well.
The broken common downhole tool of slug flow is mechanical broken bubbler at present, can be divided into the broken bubbler of multiaperture-type and metal
The broken bubbler of wire form has many advantages, such as that structure is simple, at low cost, is easily installed.The broken bubbler of multiaperture-type be based on machine cuts and
Turbulent flow collision principle forces its deformation, fracture bubble stream is out-of-date, can meet uniformly broken bubble and the small broken bubble of sub- bubble diameter
It is required that.But since area of passage strongly reduces, droop loss is larger after fluid passes through porous plate, and gas-liquid injection outflow easily causes point
The problems such as layer.Since liquid phase adheres to tube wall with form of liquid film, when passing through porous plate, liquid can be in the product of the edge below orifice plate
It is poly-, it causes to increase by the gaseous phase volume score of fluid.To solve gas-liquid lamination problem, multistage porous plate is widely adopted, edge
Fluid flow direction orifice plate series increases, eyelet gradually increases, aperture is gradually small, by bubble breaking at the minor diameter gas to meet the requirements
Bubble.And with orifice plate series increase, caused by droop loss increase.Liquid phase is gathered layer by layer, is detained when fluid passes through porous plate,
Gaseous phase volume score incrementally increases, while gas-liquid distribution situation is not improved well.It is porous and as eyelet attenuates
The turbulence intensity that plate generates increases.Both the collision probability that will increase bubble, causes bubble coalescence, and it is effective to seriously affect broken bubble
Operating distance.The broken bubbler of metal wire type is then that wire is uniformly arranged, and makes wire by generating turbulence pulsation using fluid
Vibration cutting bubble, achievees the purpose that bubble crushing.Pressure drop caused by it is smaller, but broken bubble is not comprehensive, is crushed the sub- gas generated
Bulb diameter and diameter variance are all larger, it is difficult to meet the requirement of uniformly broken bubble and sub- bubble diameter size, thus live use has
Limit.
The present invention utilizes Mechanical Crushing principle, based on the broken bubbler of multiaperture-type, is combined design and structure is improved,
In conjunction with metal wire cutting bubble and porous plate uniformly broken bubble the characteristics of, while use corrugated wall surface, improve gas-liquid distribution situation,
Liquid phase accumulation and droop loss are reduced, bubble breaking EFFECTIVE RANGE is extended.
Summary of the invention
It is an object of that present invention to provide a kind of oil/gas well slug flow combined gas slug crushing devices, it is intended to solve existing
The problems such as broken bulb apparatus pressure drop is big under oil/gas well slug flow, liquid phase is gathered.
The present invention provides a kind of oil/gas well slug flow combined gas slug broken crushing device, which is characterized in that it includes
Landing bar, newel can vibrate wire, corrugated tube wall, porous plate.
The landing bar is 4 rectangular corrosion resistant metal bars, and length is equal to broken bulb apparatus internal diameter, and width and height are equal
For 4mm, it is uniformly distributed in broken bulb apparatus inlet.
The newel is a cylindrical noncorroding metal cylinder, and diameter 6mm, the connection of 4 root entry crossbeams is fixed in lower end
Place, porous plate center is fixed in upper end.
It is described that vibrate wire be length is broken bulb apparatus internal diameter1/2, diameter 0.5mm anticorrosive, endurance metal
Silk, both ends are individually fixed in central axis and corrugated tube wall, and encrypt along central axis spiral and gradually.
The corrugated tube wall is fluctuating corrugated, ripple average height along broken bulb apparatus axis direction inner tube wall
For 4mm, top and porous plate outmost turns eyelet are tangent.
The porous plate thickness 6mm is located above broken bulb apparatus, uniformly arranges 9 loop diameter 1mm's by center to edge thereon
Aperture, and hole count gradually increases from inside to outside.
The present invention also provides a kind of oil/gas well slug flow combined gas slug breaking methods, to use above-mentioned broken bubble
The method of device progress bubble breaking.
Specific device according to the present invention, the gas slug breaking method at least include the following steps:
Downhole well fluid flows up through broken bulb apparatus, and the gas slug at center flows through landing bar and is broken into multiple minor diameters
Bubble.It continues up flowing and carries out cutting and crushing by that can vibrate wire；Near-wall fluid is made in waves
With lower formation local eddy currents, enhance the broken bubble effect of turbulence, while the liquid film for being attached to tube wall is impacted in corrugated tube wall and turbulent flow
It is dispersed in gas phase under effect, improves gas-liquid distribution situation.Finally, gas-liquid mixture flows out after porous plate is uniformly crushed, and manages
Remnants liquid film avoids liquid phase accumulation problems by flowing out with the tangent eyelet of corrugated tube wall at wall.
The present invention has overcome the deficiencies of the prior art and provide a kind of broken dress of oil/gas well slug flow combined gas slug
Set, landing bar gas slug is carried out it is tentatively broken, what then spiral gradually encrypted vibrate wire to bubble into
Row cutting and crushing, wire " are first dredged ", avoid generating a large amount of minute bubbles in great turbulence level effect because wire is excessive at the beginning
Under again collision it is poly- simultaneously；" rear close " solves to cause bubble irregular movement to cause bubble breaking is incomplete to ask because of gas-liquid agitation
Topic, further bubble crushing, gas-liquid mixture.Corrugated inner wall generates local eddy currents, enhances turbulence pulsation, will be attached to tube wall
Liquid film is dispersed in gas phase, improves gas-liquid distribution situation, the broken bubble effect of enhancing wire and gas-liquid mixed degree.Finished breaking compared with
Flowed out for complete gas-liquid mixture by porous plate, it is ensured that sub- bubble meets Particle size requirements, while at tube wall remnants liquid film by with
Tangent eyelet outflow.The present invention uses modular design, avoids big section gas slug from being directly broken and generates excessive pressure
Fluctuation causes droop loss and gas-liquid lamination, while solving liquid phase accumulation problems.
Detailed description of the invention
Fig. 1 is oil/gas well slug flow combined gas slug crushing device structural assembly diagram (sectional view) of the present invention；
Fig. 2 is oil/gas well slug flow combined gas slug crushing device structural assembly diagram (perspective view) of the present invention；
Fig. 3 is oil/gas well slug flow combined gas slug crushing device external structure top view of the present invention；
Fig. 4 is oil/gas well slug flow combined gas slug crushing device external structure bottom view of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, with reference to the accompanying drawings and embodiments, to this
Invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to
It is of the invention in limiting.
As shown in Figs 1-4, wherein Fig. 1 is oil/gas well slug flow combined gas slug crushing device structure dress of the present invention
Figure (sectional view)；Fig. 2 is oil/gas well slug flow combined gas slug crushing device structural assembly diagram (perspective view) of the present invention；
Fig. 3 is oil/gas well slug flow combined gas slug crushing device external structure top view of the present invention；Fig. 4 is oil/gas well of the present invention
Slug flow combined gas slug crushing device external structure bottom view.The present invention provides a kind of oil/gas well slug flow combined types
Gas slug crushing device, it uses modular design, including landing bar 1, newel 2, can vibrate wire 3, corrugated
Tube wall 4 and porous plate 5.Wherein: the landing bar 1 is 4 corrosion-resistant square metal bars, and length is equal in broken bulb apparatus
Diameter, width and height are 4mm, are uniformly distributed in broken bulb apparatus inlet.
The newel 2 is a cylindrical corrosion resistant metal cylinder, and diameter 6mm, the connection of 4 root entry cross bars is fixed in lower end
Place, porous plate center is fixed in upper end.
It is described that vibrate wire 3 be length is broken bulb apparatus internal diameter1/2, the anticorrosive of diameter 0.5mm, endurance it is golden
Belong to silk, both ends are individually fixed in central axis and corrugated tube wall, and along newel spiral, gradually encrypt.
The corrugated tube wall 4 is fluctuating corrugated, ripple average height along broken bulb apparatus axis direction inner tube wall
For 4mm, top and porous plate outmost turns eyelet are tangent.
The porous plate 5 is located above broken bulb apparatus with a thickness of 6mm, is uniformly arranged 9 loop diameters by center to edge thereon
The aperture of 1mm, and hole count gradually increases from inside to outside.
The process to be worked using oil/gas well slug flow combined gas slug crushing device of the present invention is as follows:
A kind of oil/gas well slug flow combined gas slug breaking method comprising the steps of:
Slug flow well liquid flows upwardly into the broken bubbler of combined type in pit shaft, and gas slug is tentatively broken through landing bar 1 between two parties
It mixes at the lesser sub- bubble of multiple diameters and with liquid phase, it is smaller to be then broken into diameter under the cutting that can vibrate wire 3
Sub- bubble, and arrange and encrypt with wire, broken sub- bubble diameter range is smaller.Gas-liquid mixture is in corrugated tubes
Local eddy currents are generated under the action of wall 4, enhance the agitation of fluid, improve gas-liquid distribution situation, then increase the vibration of wire,
Collision, the turbulence for enhancing bubble are broken, improve gas-liquid mixed degree.The higher bubble of degree of crushing is together with liquid phase through porous plate
5 outflows, it is ensured that broken sub- bubble diameter meets broken bubble requirement.
In conclusion compared to the prior art the shortcomings that and deficiency, the invention has the following advantages:
(1) wire arrangement mode can be vibrated by improving, and solved the problems, such as the random agitation of gas-liquid, optimized broken bubble effect；
(2) corrugated inner wall upper end and porous plate outmost turns eyelet are tangent, solve liquid phase accumulation problems, while in flowing side
Local eddy currents are generated upwards, increase turbulence and fluid impact, are improved gas-liquid distribution situation, are enhanced broken bubble effect, and to a certain degree
On compensate for the droop loss of porous plate；
(3) exit porous plate will mix more uniform liquid phase and bubble injection stream goes out, and uniform bubble crushing is allowed to full
Foot is broken to be required.
(4) easy for installation, it is economical and practical, it can be according to any percentage regulation of underground gas-liquid separator depth of setting；
(5) it is long to be excused from a college course the phase for package unit movement-less part, stable and reliable operation.
The foregoing is merely present pre-ferred embodiments, are not intended to limit the invention, all in spirit of the invention
Any modifications, equivalent replacements, and improvements with being done within principle, should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of oil/gas well slug flow combined gas slug crushing device, which is characterized in that it includes landing bar, center
Column can vibrate wire, corrugated tube wall and porous plate；
The landing bar supports newel, and the wire that vibrates is arranged around newel spiral, You Shuzhi solid matter, institute
It states corrugated tube wall to rise and fall along fluid flow direction, upper end and porous plate outmost turns eyelet are tangent, are distributed on the porous plate
The eyelet of diameter 1mm.
2. the apparatus according to claim 1, which is characterized in that the landing bar is 4 corrosion-resistant square metal bars, long
Degree is consistent with crushing device internal diameter, and wide, Gao Junwei 4mm is equally distributed in broken bulb apparatus inlet, is used to support newel,
Primary breakup is carried out to gas slug simultaneously.
3. the apparatus according to claim 1, which is characterized in that the newel is diameter 6mm, highly high with broken bulb apparatus
Identical corrosion resistant metal cylindrical body is spent, fixed wire is played.
4. the apparatus according to claim 1, which is characterized in that the wire that vibrates is that diameter 0.5mm is corrosion-resistant, anti-
Newel is fixed in tired filament, one end, and the other end is connected with corrugated tube wall.
5. the apparatus according to claim 1, which is characterized in that the ripple average height 4mm of the corrugated tube wall, along stream
Body flow direction rises and falls, and the upper end and porous plate outmost turns eyelet are tangent.
6. the apparatus according to claim 1, which is characterized in that the eyelet of 9 loop diameter 1mm is distributed on the porous plate,
Eyelet by porous plate center to edge, circumferentially arrange by shape, and eyelet quantity gradually increases.
7. a kind of oil/gas well slug flow combined gas slug breaking method, for using the apparatus according to claim 1
Carry out the broken method of gas slug.
8. gas slug breaking method according to claim 7, which is characterized in that be based on the gaseous core heart, liquid phase in a fluid
With the slug flow feature of form of liquid film attachment tube wall, designed using the structure that wire and porous plate combine, by each broken bubble skill
The advantage of art is organically combined and is improved, and is made up the deficiency of single mode, while using corrugated tube wall, is improved turbulence intensity, change
Kind gas-liquid distribution situation, reduces droop loss, optimizes underground gas-liquid separator operating condition, extends oil/gas well turn(a)round, increases
Oil-gas field development benefit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139719.6A CN109630075A (en) | 2019-02-26 | 2019-02-26 | A kind of oil/gas well slug flow combined gas slug crushing device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910139719.6A CN109630075A (en) | 2019-02-26 | 2019-02-26 | A kind of oil/gas well slug flow combined gas slug crushing device and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377710A (en) * | 2020-11-05 | 2021-02-19 | 长江大学 | Device for converting intermittent slug flow into continuous annular flow |
| CN112877931A (en) * | 2021-01-13 | 2021-06-01 | 浙江中星制针股份有限公司 | Crank type sewing machine for sewing flat seam |
| CN113797690A (en) * | 2021-09-30 | 2021-12-17 | 四川大学 | Cascading membrane descending column and device for cross-flow dust removal |
| CN114748981A (en) * | 2022-03-24 | 2022-07-15 | 重庆众源盛特环保设备制造有限公司 | Active dynamic film generator |
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| CN101658768A (en) * | 2009-09-24 | 2010-03-03 | 郝宏伟 | Fluid refining device |
| JP2015047527A (en) * | 2013-08-30 | 2015-03-16 | 株式会社デンソー | Ejector device and pipe washing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377710A (en) * | 2020-11-05 | 2021-02-19 | 长江大学 | Device for converting intermittent slug flow into continuous annular flow |
| CN112877931A (en) * | 2021-01-13 | 2021-06-01 | 浙江中星制针股份有限公司 | Crank type sewing machine for sewing flat seam |
| CN113797690A (en) * | 2021-09-30 | 2021-12-17 | 四川大学 | Cascading membrane descending column and device for cross-flow dust removal |
| CN113797690B (en) * | 2021-09-30 | 2022-05-06 | 四川大学 | Cascading membrane descending column and device for cross-flow dust removal |
| CN114748981A (en) * | 2022-03-24 | 2022-07-15 | 重庆众源盛特环保设备制造有限公司 | Active dynamic film generator |
| CN114748981B (en) * | 2022-03-24 | 2023-08-22 | 重庆众源盛特环保设备制造有限公司 | Active dynamic membrane generator |
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Application publication date: 20190416 |