CN105569625B - Underground steam flow mass dryness fraction distributes regulation device - Google Patents
Underground steam flow mass dryness fraction distributes regulation device Download PDFInfo
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Abstract
The invention discloses underground steam flow mass dryness fraction to distribute regulation device, including outer tube, flow adjuster, nozzle-type flow pressure bascule, the outer tube sets layer steam injection passage, the layer steam injection passage is divided into a main channel arranged side by side and at least one side passage, the upper port installation nozzle-type flow pressure bascule of the main channel, the side channel interior installs flow adjuster, the oblique outer tube bore being communicated to above the upper port of main channel of upper end entrance of the side passage.Steam flow pattern fairing is installed in the outer tube bore and before layer steam injection channel branch.The present invention improves the development degree and development effectiveness of thick oil pay and more series of strata oil wells, realizes steam quality, the reasonable distribution of flow between different oil reservoirs, and technology guarantee is provided to improve the exploitation effect of heavy crude reservoir.
Description
Technical field
The present invention relates to underground regulation device during heavy crude heat extraction, specifically underground steam flow mass dryness fraction distribution is adjusted
Control device.
Background technology
Wherein general steam injection mining type occupies significant proportion, but has arrived mid-later development phase, is opened together in multiple zone
Current cyclic steam stimulation block is most of all in the later stage of handling up under the conditions of the general steam injection of well, and contradiction is increasingly dashed forward between each reservoir
Go out, have a strong impact on the development degree of oil reservoir.China's heavy oil reserves very abundant, is oil recovery by heating using Thermal Recovery For Viscous Oil By Steam
A kind of important method, wherein the flow of injection underground steam and mass dryness fraction oil well production increasing and increasing economic efficiency is played it is particularly significant
Effect, especially for thick oil pay and more series of strata heavy crude reservoirs, realize flow that each layer designed by reservoir geology personnel and
Mass dryness fraction injects each layer, all has important practical significance to extending the production cycle of oil reservoir and improving recovery ratio.Current live well
Bet steam pipe base for post this using general steam injection by the way of, not to thick oil pay and the accurate flow of oil reservoir with multiple series of strata progress and mass dryness fraction
Regulation measure, and steam injection is carried out according to the anisotropism of oil reservoir itself, if things go on like this, cause each interval in underground to inhale vapour and oil production
Unbalanced, the place suction vapour of easy steam injection is more, and the local steam injection for being not easy steam injection is few, so as to have impact on the whole structure of steam injection, leads
Oil production is caused to be gradually reduced.
The distribution control technique investigation of laminated distributor under well steam injection flow mass dryness fraction has been carried out regarding to the issue above.At present, domestic contrast
Ripe laminated distributor under well steam injection technology is mainly the method using layered quantitative gas filling, using valve first one unit of note is dispensed, is reached
The steam injection passage is closed in pitching again after to gas injection rate, notes another unit.The technique realizes layered quantitative gas filling, but can not be real
Steam distribution in separate layer is carried out to it simultaneously in a present steam injection.Steam flow is limited by the way of steam distributing valve in addition, also having
System, the steam flow of each layer is removed in control, but its tubular column structure determines that the gas phase in moist steam preferentially enters steam distributing valve, causes to steam
Vapour mass dryness fraction increases with depth and gradually reduced, and can not realize etc. that mass dryness fraction matches somebody with somebody vapour.
The content of the invention
It is an object of the invention to provide underground steam flow mass dryness fraction to distribute regulation device, improves thick oil pay and more series of strata oil
The development degree and development effectiveness of well, steam quality, the reasonable distribution of flow between different oil reservoirs are realized, to improve heavy crude reservoir
Exploitation effect provides technology and ensured.
In order to reach above-mentioned purpose, present invention employs following technical scheme, underground steam flow mass dryness fraction distribution regulation and control dress
Put, including outer tube, flow adjuster, nozzle-type flow pressure bascule, the outer tube set layer steam injection passage,
The layer steam injection passage is divided into a main channel arranged side by side and at least one side passage, the upper port installation of the main channel
Nozzle-type flow pressure bascule, the side channel interior install flow adjuster, and the upper end of the side passage enters
The oblique outer tube bore being communicated to above the upper port of main channel of mouth.
Steam flow pattern fairing is installed in the outer tube bore and before layer steam injection channel branch.
The steam flow pattern fairing is in the form of annular discs, and opens up and be evenly equipped with multiple through holes.
The nozzle-type flow pressure bascule center opens up the centre bore of turbination.
The flow adjuster includes shell, streamlined float, standard orifice plate, and the outer casing inner wall installs gauge orifice
Streamlined float is installed at plate, the center of standard orifice plate, and shell bottom outer wall is by being threadably mounted at the lower end of side passage
On outlet inside wall.
The upper and lower of the streamlined float is provided with the straightening support for being fixed on outer casing inner wall, righting branch before being respectively
Frame, rear straightening support, the center of the preceding straightening support are connected to the upper surface of streamlined float, the rear straightening support and stream
Support spring is set between the lower surface of line style float, and the straightening support center opens up flow channels.
Sealed between outer shell outer wall and the side vias inner walls by sealing o circles.
The outer tube upper end is oil pipe top connection connection end, opens up internal thread, and the outer tube lower end connects for oil pipe lower contact
End is connect, opens up external screw thread.
Compared to prior art, the invention has the advantages that：
The present invention is filled according to the characteristic of steam-water two-phase fluid using the steam flow pattern rectification of uniformly densely covered porous type
Put and underground moist steam is rectified into dispersed stream, ensure that the water droplet in steam is uniformly distributed in gas phase, be subsequent control
Layer steam injection mass dryness fraction deviation provides precondition.Then by nozzle-type flow pressure bascule by the pressure control of different outlets
At the same pressure, different back pressures are influenceed system to caused by flow and mass dryness fraction between eliminating two outlets, and then a part of fluid is carried out
Layer steam injection passage one, another part enter layer steam injection passage two.In layer steam injection passage one, installation flow control dress
Put, the steam flow ensured into this layer calculates steam stream according to reservoir engineering personnel by steam-water two phase flow theory model
The numerical value that amount calculates enters, while also ensure that into the steam flow of next stage assignment channel and the numerical value of mass dryness fraction be by design
Carry out.The development degree and development effectiveness of thick oil pay and more series of strata oil wells are improved, realizes steam quality between different oil reservoirs, flow
Reasonable distribution, technology guarantee is provided to improve the exploitation effect of heavy crude reservoir.
Flow rate adjustable scope 0t/h-18t/h；2nd, pressure 0-30MPa；3rd, 374 DEG C of temperature；4th, regulate and control error and be less than 8%.
Brief description of the drawings
Fig. 1 is the structural representation that underground steam flow mass dryness fraction distributes regulation device；
Fig. 2 is the structural representation of flow adjuster in Fig. 1.
In figure, 1, oil pipe top connection connection end；2nd, steam flow pattern fairing；3rd, first layer steam injection feeder connection；4、
Nozzle-type flow pressure bascule；5th, flow adjuster；6th, first layer steam injection channel outlet；7th, the second layer steam injection leads to
Road；8th, oil pipe lower contact connection end；
501st, flow adjuster shell；502nd, preceding straightening support；503rd, streamlined float；504th, standard orifice plate；505、
Support spring；506th, rear straightening support；507th, lower thread sealed end；508th, o circles are sealed.
Embodiment
Detailed description for the present invention and technology contents, coordinate brief description of the drawings it is as follows, but accompanying drawing only provide reference with
Purposes of discussion, not it is used for being any limitation as the present invention.
According to Fig. 1-2, underground steam flow mass dryness fraction distribution regulation device, including outer tube, flow adjuster 5, spray
Mouth formula flow pressure bascule 4, the outer tube set layer steam injection passage, and the layer steam injection passage is divided into arranged side by side
One main channel (implementing the second layer steam injection passage 7 in illustration) and at least one side passage, the upper end of the main channel
Mouth installation nozzle-type flow pressure bascule 4, the side channel interior installs flow adjuster 5, the side passage
The oblique outer tube being communicated to above the upper port of main channel of upper end entrance (implement first layer steam injection feeder connection 3 in illustration)
Inner chamber.Steam flow pattern fairing 2 is installed in outer tube bore and before layer steam injection channel branch.The steam flow pattern
Fairing is in the form of annular discs, and opens up and be evenly equipped with multiple through holes.The center of nozzle-type flow pressure bascule 4 opens up rounding
The centre bore of taper.
Flow adjuster includes shell 501, streamlined float 503, standard orifice plate 504, the outer casing inner wall installation mark
Streamlined float is installed at quasi- orifice plate, the center of standard orifice plate, and shell bottom outer wall is by being threadably mounted at side passage
On lower end outlet (implementing the first layer steam injection channel outlet 6 in illustration) inwall.The upper and lower of the streamlined float is all provided with
The straightening support for being fixed on outer casing inner wall is equipped with, respectively preceding straightening support 502, rear straightening support 506, the preceding straightening support
Center be connected to the upper surface of streamlined float, set and support between straightening support and the lower surface of streamlined float after described
Spring 505, the straightening support center open up flow channels.By sealing o between outer shell outer wall and the side vias inner walls
Circle 508 is sealed.
Outer tube upper end is oil pipe top connection connection end 1, opens up internal thread, and the outer tube lower end is oil pipe lower contact connection end
8, open up external screw thread.
Outer tube upper end sets the steam flow pattern fairing 2 for uniform bore of gathering, behind connection two independently
Layer steam injection passage, ensure that the mass dryness fraction for entering two above passage is essentially identical first, then ensure first layer steam injection passage
Regulate and control with each laminar flow amount of the second layer steam injection passage according to the distribution of design.Then installation nozzle in the second layer steam injection passage
Formula flow pressure bascule 4, final second layer steam injection passage are finally coordinated by the oil pipe lower contact connection end 8 of lower end and divided
Layer packer etc. ensures two layers of steam distribution.
In addition, the steam flow, mass dryness fraction distribution regulation and control for more than three layers can connect again after interlayer separator is installed
Above underground steam flow mass dryness fraction regulation device is connect, realizes steam flow mass dryness fraction distribution regulation and control under multiple zone well.
The present invention is filled according to the characteristic of steam-water two-phase fluid using the steam flow pattern rectification of uniformly densely covered porous type
Put and underground moist steam is rectified into dispersed stream, ensure that the water droplet in steam is uniformly distributed in gas phase, be subsequent control
Layer steam injection mass dryness fraction deviation provides precondition.Then by nozzle-type flow pressure bascule by the pressure control of different outlets
At the same pressure, different back pressures are influenceed system to caused by flow and mass dryness fraction between eliminating two outlets, and then a part of fluid is carried out
Layer steam injection passage one, another part enter layer steam injection passage two.In layer steam injection passage one, installation flow control dress
Put, the steam flow ensured into this layer calculates steam stream according to reservoir engineering personnel by steam-water two phase flow theory model
The numerical value that amount calculates enters, while also ensure that into the steam flow of next stage assignment channel and the numerical value of mass dryness fraction be by design
Carry out.In addition, the volume control device in hierarchical channel two may also be the differential pressure type flow throttle control device such as orifice plate, nozzle.
Steam jet flow in hierarchical channel one is calculated as follows：
In formula：
The weight flow of W --- fluid, kg/h；
C --- nozzle orifice coeficient, by Re and do/D values；
Do --- nozzle minimum-value aperture, m；
D --- internal diameter of the pipeline, m；
P1 --- pressure before nozzle, Pa；
P2 --- pressure or critical limit flowing pressure after nozzle, its large one is taken, Pa；
M --- molecular weight；
Z --- the compressed coefficient, gas compressibility factor figure is looked into according to fluid reduced pressure (Pr) reduced temperature Tr and asked for；
T --- fluid temperature (F.T.) before nozzle, K；
K --- adiabatic exponent, k=Cp/Cv；
CP --- fluid specific heat at constant pressure, kJ/ (kgK)；
CV --- fluid specific heat at constant volume, kJ/ (kgK).
Adjustable steam flow in hierarchical channel two is calculated as follows：
According to fluid mechanics principle, the relation of flow and both ends pressure difference of the fluid Jing Guo throttling arrangement can be represented by the formula：
In formula：QM--- mass flow；A --- circulation area；C --- discharge coefficient；
ρ --- fluid density；Δ P --- the pressure difference at throttling arrangement both ends.
C, ρ in formula are considered as constant, when actual internal area A keeps constant, QMIt is directly proportional to Δ P square root, work as section
When stream device both ends pressure difference changes, flow changes therewith in runner.
Presently preferred embodiments of the present invention is the foregoing is only, is not used to limit the scope of the claims of the present invention, other are with this
The equivalence changes of the patent spirit of invention, it all should all belong to the scope of the claims of the present invention.
Claims (4)
1. underground steam flow mass dryness fraction distributes regulation device, it is characterised in that including outer tube, flow adjuster, nozzle-type stream
Pressure equaliser is measured, the outer tube sets layer steam injection passage, and the layer steam injection passage is divided into a master arranged side by side
Passage and at least one side passage, the upper port installation nozzle-type flow pressure bascule of the main channel, the side
Channel interior installs flow adjuster, the upper end entrance of the side passage is oblique be communicated to it is outer above the upper port of main channel
Tube cavity；Steam flow pattern fairing, the steaming are installed in the outer tube bore and before layer steam injection channel branch
Steam flow type fairing is in the form of annular discs, and opens up and be evenly equipped with multiple through holes, and the nozzle-type flow pressure bascule center is opened
If the centre bore of turbination, the flow adjuster includes shell, streamlined float, standard orifice plate, the outer casing inner wall
Standard orifice plate is installed, streamlined float is installed at the center of standard orifice plate, and shell bottom outer wall is by being threadably mounted at side
On the lower end outlet inside wall of passage.
2. underground steam flow mass dryness fraction according to claim 1 distributes regulation device, it is characterised in that described streamlined floating
The upper and lower of son is provided with the straightening support for being fixed on outer casing inner wall, respectively preceding straightening support, rear straightening support, before described
The center of straightening support is connected to the upper surface of streamlined float, between the rear straightening support and the lower surface of streamlined float
Support spring is set, and the straightening support center opens up flow channels.
3. underground steam flow mass dryness fraction according to claim 1 distributes regulation device, it is characterised in that the outer shell outer wall
Sealed between side vias inner walls by sealing o circles.
4. underground steam flow mass dryness fraction according to claim 1 distributes regulation device, it is characterised in that the outer tube upper end
For oil pipe top connection connection end, internal thread is opened up, the outer tube lower end is oil pipe lower contact connection end, opens up external screw thread.
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| CN201410643533.1A CN105569625B (en) | 2014-11-10 | 2014-11-10 | Underground steam flow mass dryness fraction distributes regulation device |
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| CN201410643533.1A CN105569625B (en) | 2014-11-10 | 2014-11-10 | Underground steam flow mass dryness fraction distributes regulation device |
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| CN105569625B true CN105569625B (en) | 2018-03-16 |
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| CN107570331B (en) * | 2016-06-30 | 2020-11-03 | 山保工业株式会社 | Liquid dispensing nozzle |
| CN107780906A (en) * | 2017-10-27 | 2018-03-09 | 长江大学 | The constant flow water filling jet pipe for principle of being jammed based on machinery |
| CN110984935A (en) * | 2019-12-12 | 2020-04-10 | 中国石油化工股份有限公司 | Intelligent steam regulation and control device for oil field ground steam injection pipe network |
| CN114427413A (en) * | 2020-10-09 | 2022-05-03 | 中国石油化工股份有限公司 | Equal-flow equal-dryness steam distributor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2487868Y (en) * | 2001-05-14 | 2002-04-24 | 中国石化胜利油田有限公司采油工艺研究院 | Integrated device for distributing metering and regulating in thickened oil filling steam process |
| CN101358518A (en) * | 2008-09-03 | 2009-02-04 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Heavy oil thermal recovery balanced steam injection and regulation device |
| CN201857948U (en) * | 2010-11-12 | 2011-06-08 | 中国石油化工股份有限公司 | Steam distributing, metering and regulating device of steam-injection branch well |
| CN201963282U (en) * | 2010-12-08 | 2011-09-07 | 中国石油天然气股份有限公司 | Uniform dryness distributor for saturated vapor in oil field |
| RU2436943C1 (en) * | 2010-06-03 | 2011-12-20 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Procedure for extraction of high viscous oil from deviating hole by method of steam cyclic pumping into reservoir |
| CN203214031U (en) * | 2013-04-23 | 2013-09-25 | 中国石油化工股份有限公司 | Device for distributing, regulating and controlling and metering flow and dryness of wet steam on ground surface of oil field |
| CN204371275U (en) * | 2014-11-10 | 2015-06-03 | 中国石油化工股份有限公司 | A kind of underground steam flow mass dryness fraction distributes regulation device |
-
2014
- 2014-11-10 CN CN201410643533.1A patent/CN105569625B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2487868Y (en) * | 2001-05-14 | 2002-04-24 | 中国石化胜利油田有限公司采油工艺研究院 | Integrated device for distributing metering and regulating in thickened oil filling steam process |
| CN101358518A (en) * | 2008-09-03 | 2009-02-04 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Heavy oil thermal recovery balanced steam injection and regulation device |
| RU2436943C1 (en) * | 2010-06-03 | 2011-12-20 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Procedure for extraction of high viscous oil from deviating hole by method of steam cyclic pumping into reservoir |
| CN201857948U (en) * | 2010-11-12 | 2011-06-08 | 中国石油化工股份有限公司 | Steam distributing, metering and regulating device of steam-injection branch well |
| CN201963282U (en) * | 2010-12-08 | 2011-09-07 | 中国石油天然气股份有限公司 | Uniform dryness distributor for saturated vapor in oil field |
| CN203214031U (en) * | 2013-04-23 | 2013-09-25 | 中国石油化工股份有限公司 | Device for distributing, regulating and controlling and metering flow and dryness of wet steam on ground surface of oil field |
| CN204371275U (en) * | 2014-11-10 | 2015-06-03 | 中国石油化工股份有限公司 | A kind of underground steam flow mass dryness fraction distributes regulation device |
Non-Patent Citations (1)
| Title |
|---|
| 可控定量配注器恒流阀恒流特性数值研究;王超等;《机床与液压》;20140930(第16期);第82-85页 * |
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