CN109386256A - Viscous crude steam jet lifting implement and steam gas lift system - Google Patents
Viscous crude steam jet lifting implement and steam gas lift system Download PDFInfo
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- CN109386256A CN109386256A CN201710665291.XA CN201710665291A CN109386256A CN 109386256 A CN109386256 A CN 109386256A CN 201710665291 A CN201710665291 A CN 201710665291A CN 109386256 A CN109386256 A CN 109386256A
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 70
- 239000012530 fluid Substances 0.000 claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 210000002445 nipple Anatomy 0.000 claims abstract description 22
- 230000008676 import Effects 0.000 claims abstract description 17
- 238000009792 diffusion process Methods 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims abstract description 6
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 20
- 239000007924 injection Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 10
- 230000002411 adverse Effects 0.000 abstract description 5
- 230000000977 initiatory effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 63
- 238000000034 method Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 238000010793 Steam injection (oil industry) Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 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
- E21B43/121—Lifting well fluids
- E21B43/122—Gas lift
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention proposes a kind of viscous crude steam jet lifting implement and steam gas lift system, which includes: top connection；Seating nipple, the upper end connect the top connection, are internally provided with nozzle, negative pressure chamber and mixing diffusion chamber, well liquid import, the production fluid entrance being connected to the negative pressure chamber and the production fluid spout being connected to the mixing diffusion chamber；Channel cylinder is socketed in outside the seating nipple, and interior be equipped with produces liquid channel and production fluid outlet；Partition is connected to the lower section for being located at the diffuser in the seating nipple, separates the well liquid import and the production fluid spout；Lower contact connects the lower end of the seating nipple.The tool can overcome the back pressure of pressure initiation caused by gas injection to adverse effect caused by oil reservoir, and the producing pressure differential of oil reservoir is further amplified, and gaslift well yield and lifting efficiency are improved in the case where not increasing input.
Description
Technical field
The present invention relates to oil tool technical fields, and in particular to a kind of viscous crude steam jet act for thick oil thermal extraction
The tool of liter and the steam gas lift system including the tool.
Background technique
Gas-lift production is compared with other machine modes of adopting and is had many good qualities, such as adaptable, i.e., for deep-well, shallow well, high oil
Gas can be applicable in than well, high sand drain, inclined shaft, the horizontal well of containing, convenient for management, advantage of lower cost etc..But gas-lift production technique has
One disadvantage cannot exactly lift viscous crude, because pressure is to gradually decrease during lifting the upward fluid of Shi Jingzhong
, in this way there have been the process of swell refrigeration, temperature will be gradually decreased, and the viscosity of viscous crude be variation with temperature and
It is jumpy, therefore the viscosity of viscous crude will sharply increase during lifting or the rising in oil pipe, very may be used in this way
It can will be solidified in the wellbore before being given rise to ground.In addition, during lifting it is easy to form bulk viscous crude and make
It slips loss to increase, reduces lifting efficiency, therefore viscous crude is not to be suitable for carrying out artificial lift with the mode of gaslift.It is main at present
If being recovered the oil with sucker rod pump.Gas-lift production technique has another disadvantage that negative pressure cannot be carried out as sucker rod pump adopts
Oil can cause very big back pressure, institute this is because gas injection pressure acts on oil reservoir always during lifting to oil reservoir
Gas-lift production can not be carried out in the case where gas injection pressure to force down for stream in lifting process.
In continuous gas lift well, the gas injection pressure that flowing bottomhole pressure (FBHP) is equal in annular space adds caused by the hydrodynamic face at operating valve
Pressure add-back pressure again, or add again equal to the aerated fluid column pressure filling gas point head of liquid below in oil pipe more than gas injection point
Back pressure.That is in continuous gas lift well, gas injection pressure plays the role of two, and one is that the fluid in pit shaft is lifted really
Ground is arrived, another effect is exactly to cause very high back pressure to stratum, causes the producing pressure differential of oil reservoir that cannot further put
Greatly, it has seriously affected oily well yield and has greatly reduced lifting efficiency.Cause current gas-lift production technique cannot be as there is bar
Pump recovers the oil amplifies the producing pressure differential of oil reservoir to greatest extent like that, improves yield.
Deep-well lower for pressure, gas injection pressure almost presses equal or higher than oil reservoir stream with the stream of oil reservoir sometimes
Pressure, in this way since gas injection pressure acts on oil reservoir, cannot amplify producing pressure differential, not only affect oily well yield, and
Gas injection ratio is very high, has seriously affected lifting efficiency.Shallow well lower for pressure can not be produced normally at all, and between can only using
It has a short break the mode of act, but the lifting efficiency of intermittent gaslift is again relatively low, and cost is also higher.
For pressure and the higher high-yield well of production capacity, since gas injection pressure and operating valve head of liquid below directly act on
On oil reservoir, excessively high back pressure will be generated to oil reservoir, prevents producing pressure differential from further amplifying, also severely impacts in this way
Gaslift well yield and lifting efficiency.Existing gaslift technology can only lift the lower thin oil of viscosity, can only for viscous crude
It is produced, and can not be produced with lift mode with sucker rod pump.
Summary of the invention
For some or all of of the above-mentioned technical problem in the presence of the prior art, the invention proposes a kind of viscous crude
Steam jet lifting implement can overcome the back pressure of pressure initiation caused by gas injection to adverse effect caused by oil reservoir, into
One step amplifies the producing pressure differential of oil reservoir, and gaslift well yield and lifting efficiency are improved in the case where not increasing input.
On the one hand, the invention proposes a kind of viscous crude steam jet lifting implements having following structure, comprising:
Top connection；
Seating nipple, the upper end connect the top connection, are internally provided with nozzle, negative pressure chamber and mixing diffusion chamber, described
Well liquid import is further respectively had on seating nipple cylinder, the production fluid entrance that is connected to the negative pressure chamber and mixes diffusion with described
The production fluid spout of chamber；
Channel cylinder is socketed in outside the seating nipple, and interior be equipped with produces liquid channel and production fluid outlet, and the production liquid is logical
The one end in road and the well liquid inlet communication, the other end for producing liquid channel are connected to the production fluid entrance, the output
Liquid outlet and the production fluid spout connection；
Partition is connected to the lower section for being located at the diffuser in the seating nipple, separate the well liquid import with it is described
Production fluid spout；
Lower contact connects the lower end of the seating nipple.
Viscous crude steam jet lifting implement of the invention, steam are applied directly to the viscous crude for entering negative pressure chamber through producing liquid channel
On, rather than act on oil reservoir, the injection of steam will not generate excessively high back pressure on oil reservoir, it is thus possible to overcome existing time
Press bring adverse effect.Meanwhile can play the role of promoting temperature to viscous crude by steam, the viscosity of viscous crude is reduced, from
And gaslift well yield and lifting efficiency can be improved.
In one embodiment, under the action of negative pressure, viscous crude from well liquid import through produce liquid channel enter negative pressure chamber and with
The high steam that nozzle ejects enter mixing diffuser casing mixed after, from the production fluid spout through production fluid export enter
It is lifted after annular space.Steam does not act directly on the oil reservoir on stratum, can overcome the influence of existing steam injection bring back pressure.
In one embodiment, the mixing diffusion chamber includes the trunnion connecting with negative pressure chamber and connects with the trunnion
The diffuser connect, the intracavity diameter of the trunnion are less than the intracavity diameter of the negative pressure chamber, and the intracavity diameter of the diffuser is big
In the intracavity diameter of the trunnion.Viscous crude and steam are mainly mixed in trunnion, are diffused in diffuser and are converted with kinetic energy, then
It is lifted after ejection.
In one embodiment, the nozzle, negative pressure chamber, trunnion and diffuser are sequentially communicated, the negative pressure chamber, trunnion
With diffuser integrally connected.Integral structure facilitates installation, can also simplify to the maximum extent and reduce connection in seating nipple or
Mounting complexity.
In one embodiment, the nozzle extends into the negative pressure chamber, and the outlet of the nozzle outwardly protrudes court
To the negative pressure chamber, the top of the nozzle is equipped with upper baffle ring.Nozzle is during installation generally by way of inserting, upper baffle ring pair
Nozzle plays restriction effect.
In one embodiment, the entrance of the trunnion is equipped with the horn mouth being connected to the negative pressure chamber, the larynx
Downward widened transition structure is equipped between pipe and the diffuser, the bottom of the diffuser is dome shape.Transition structure and
Dome shape bottom can reduce energy loss, improve energy conversion efficiency.
In one embodiment, the channel cylinder is symmetrically arranged at intervals with multiple production liquid channels and multiple productions
Eluate outlet, multiple production fluid outlets are arranged obliquely with multiple production fluid spouts.Subsequent job be carry out to
Upper lifting, production fluid spout and the production fluid outlet being arranged obliquely are more advantageous to subsequent job.
On the other hand, the invention also provides a kind of steam gas lift systems, and above-mentioned viscous crude steam jet is used to lift
Tool, the top connection of the tool are connected with the first oil pipe, and the lower contact of the tool is connected with the second oil pipe, the upper end of the tool
Be arranged with instlated tubular outside the first oil pipe, the lower end of the tool be located on the second oil pipe be connected with for separate steam points with
The tubing packer of lower liquid level.Instlated tubular can reduce the thermal loss in lifting process, and tubing packer can separate to be lifted
Gas mixture and oil reservoir avoid the pressure of gas mixture from impacting oil reservoir.
In one embodiment, the tubing packer is located above oil reservoir at not less than 10 meters, the instlated tubular position
At midpoint of pay zone, the steam quality of the high steam used is 68%~75%, steam pressure 7.0MPa.
In one embodiment, under the action of negative pressure, viscous crude from well liquid import through produce liquid channel enter negative pressure chamber and with
The high steam that nozzle ejects enter mixing diffuser casing mixed after, from the production fluid spout through production fluid export enter
It is lifted after annular space between the instlated tubular and first oil pipe.
Compared with prior art, the advantages of steam gas lift system of the invention, is:
Steam gas lift system of the invention avoids steam from directly making by using above-mentioned viscous crude steam jet lifting implement
With on oil reservoir, while the oil reservoir of mixed viscous crude Yu vapour mixture and lower part is opened by tubing packer packing, it can
The adverse effect of the back pressure generated on oil reservoir by gas injection pressure in the prior art is well solved, while oil can be further amplified
The producing pressure differential of layer.In addition, the instlated tubular of setting can function well as insulation effect, heat as far as possible in reduction lifting process
Loss improves gaslift well yield and lifting efficiency.
Detailed description of the invention
The preferred embodiment of the present invention is described in detail below in conjunction with attached drawing, in figure:
Fig. 1 shows the structural schematic diagram of one of embodiment of viscous crude steam jet lifting implement of the invention；
It is the A-A sectional view in Fig. 1 shown in Fig. 2；
It is the structural schematic diagram of steam gas lift system of the invention shown in Fig. 3.
In the figures above: 1, top connection, 2, seating nipple, 3, upper baffle ring, 4, nozzle, 5, production fluid entrance, 6, negative pressure chamber, 7,
Produce liquid channel, 8, trunnion, 9, production fluid spout, 10, diffuser, 11, channel cylinder, 12, well liquid import, 13, partition, 14, outer spiral shell
Line, 15, production fluid outlet, 16, instlated tubular, 17, tool, the 18, second oil pipe, 19, packer, 20, lower contact, the 21, first oil
Pipe.
In attached drawing, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
In order to which technical solution of the present invention and advantage is more clearly understood, below in conjunction with attached drawing to of the invention exemplary
Embodiment is described in more detail.Obviously, the described embodiments are merely a part of the embodiments of the present invention, rather than
The exhaustion of all embodiments.And in the absence of conflict, the feature in the embodiment and embodiment in the present invention can be mutual
It combines.
Inventor during invention it is noted that it is existing in such a way that gaslift is recovered the oil since gas injection back pressure and people are thick
The problems such as oil is influenced by ambient temperature big, deep-well lower for pressure, lifting efficiency is low, and gas injection is at high cost；For pressure and
The higher high-yield well of production capacity, then cannot be such that producing pressure differential further amplifies, and severely impact gaslift well yield and lifting
Efficiency.Therefore, caused by the result is that: existing gaslift technology can only lift the lower thin oil of viscosity, can only use for viscous crude
Sucker rod pump is produced, and can not be produced with lift mode.
Against the above deficiency, the embodiment of the present invention specially proposes a kind of viscous crude steam jet lifting implement 17, this is thick
Oil vapour jet stream lifting implement 17 uses high steam as gas source, using steam gaslift principle of negative pressure, by seating nipple 2
The structures such as diffuser 10 and the negative pressure chamber being connected to diffuser 10 overcome gas injection pressure (or being steam pressure) to oil
The adverse effect for the back pressure that layer generates, has been further amplified the producing pressure differential of oil reservoir, (has not increased gas injection rate not increasing input
And gas injection pressure) in the case where improve gaslift well yield and lifting efficiency.It carries out with reference to the accompanying drawings and examples specifically
It is bright.
Fig. 1 shows a kind of embodiment of viscous crude steam jet lifting implement of the invention.In this embodiment, of the invention
Viscous crude steam jet lifting implement specifically include that top connection 1, seating nipple 2, channel cylinder 11 and lower contact 20 (can refer to Fig. 3),
Lower contact 20 is not shown in Fig. 1, the external screw thread 14 connecting with lower contact 20 is only shown.Wherein, seating nipple 2, the upper end connection
Top connection 1, lower end connect lower contact.The inside of seating nipple 2 is successively arranged nozzle 4, negative pressure chamber 6 and mixing diffusion from top to bottom
Chamber.Mixing diffusion chamber mainly includes trunnion 8 and diffuser 10.Further respectively had on the cylinder of seating nipple 2 well liquid import 12,
The production fluid entrance 5 being connected to negative pressure chamber 6 and the production fluid spout 9 being connected to diffuser 10.Channel cylinder 11 is socketed in work
Outside cylinder 2.It is equipped in channel cylinder 11 and produces liquid channel 7 and production fluid outlet 15.The one end for producing liquid channel 7 is connected to well liquid import 12,
The other end for producing liquid channel 7 is connected to production fluid entrance 5.Production fluid spout 9 is connected to production fluid outlet 15.
In one embodiment, partition 13 is equipped with positioned at the lower section of diffuser 10 in seating nipple 2.The partition 13 is located at well
Between liquid import 12 and production fluid spout 9, the work for separating the gas-liquid mixture fluid of steam injection point liquid level below and output is played
With.
In the embodiment in figure 1, viscous crude enters negative pressure chamber 6 through production liquid channel 7 from well liquid import 12 and projects with nozzle spray 4
High steam enter trunnion 8 and after diffuser 10 is sufficiently mixed, enter ring from production fluid spout 9 through production fluid outlet 15
It is empty.Steam does not act directly on the oil reservoir on stratum, can overcome the influence of existing steam injection bring back pressure.
In one embodiment, the intracavity diameter of trunnion 8 is less than the intracavity diameter of negative pressure chamber 6.The inner cavity of diffuser 10 is straight
Diameter is greater than the intracavity diameter of trunnion 8.Viscous crude and steam are mainly mixed in trunnion 8, are diffused in diffuser 10 and are converted with kinetic energy,
Then it sprays.
In one embodiment, nozzle 4, negative pressure chamber 6, trunnion 8 and diffuser 10 are sequentially communicated, negative pressure chamber 6,8 and of trunnion
10 integrally connected of diffuser.Integral connecting structure can facilitate installation, also can simplify to the maximum extent and reduce in seating nipple 2
Connection or mounting complexity.
In one embodiment, nozzle 4 extends into negative pressure chamber 6, and the outlet of nozzle 4 is outwardly protruded towards negative pressure chamber 6, spray
The top of mouth 4 is equipped with upper baffle ring 3.For nozzle 4 during installation generally by way of inserting, upper baffle ring 3 can play limitation to nozzle 4
Effect.
In one embodiment, the entrance of trunnion 8 is equipped with the horn mouth being connected to negative pressure chamber 6.Trunnion 8 and diffuser 10
Between be equipped with downward widened transition structure.The bottom of diffuser is dome shape.Transition structure and dome shape bottom can reduce energy
Amount loss, improves energy conversion efficiency.
In one embodiment, as shown in Fig. 2, being symmetrically arranged at intervals with multiple production liquid channels 7 and multiple on channel cylinder 11
Production fluid outlet 15.It is preferred that multiple production fluid outlets 15 are arranged obliquely with multiple production fluid spouts 9.Since subsequent job is
The viscous crude sprayed from production fluid outlet 15 is lifted upwards with vapour mixture, the production fluid spout 9 being arranged obliquely and production
Eluate outlet 15 is more advantageous to subsequent job, is conducive to improve lifting efficiency, reduces energy loss.
On the other hand, the invention also provides a kind of steam gas lift systems.As Fig. 3 shows the one of the steam gas lift system
Kind embodiment, in this embodiment, which includes above-mentioned viscous crude steam jet lifting implement 17, and the tool 17 is upper
Connector 1 is connected with the first oil pipe 21, and the lower contact 20 of the tool 17 is connected with the second oil pipe 18, and the upper end of tool 17 is located at first
The outer cover of oil pipe 21 be equipped with instlated tubular 16, the lower end of tool 17 be located on the second oil pipe 18 be connected with for separate steam points with
The tubing packer 19 of lower liquid level.In an embodiment of the present invention, instlated tubular 16 can reduce the thermal loss in lifting process.Oil
Pipe packer 19 can separate gas mixture and oil reservoir to be lifted, and the pressure of gas mixture is avoided to impact oil reservoir.
In a preferred embodiment, tubing packer 19 is located above oil reservoir at not less than 10 meters.Instlated tubular 16
At midpoint of pay zone.It is preferred that the steam quality of the high steam used is 68%~75%, steam pressure 7.0MPa.
The working principle of the steam gas lift system is as follows: under negative pressure and down-hole pressure effect, viscous crude is from well liquid import 12
High steam through producing the entrance negative pressure chamber 6 of liquid channel 7 and ejecting with nozzle 4 enters trunnion 8 and diffuser 10 is sufficiently mixed
After conjunction, sprayed from production fluid spout 9 through production fluid outlet 15, after the annular space between instlated tubular 16 and the first oil pipe 21
It is lifted.
In an implementation, in order to reduce the heat loss of the steam in lifting process to the greatest extent, the upper lower contact of the tool 17 with
After the connection of first oil pipe 21 in tripping in instlated tubular 16.The lower band level-one tubing packer 19 of tool 17, to separate steam injection point one
Under liquid level and steam injection point more than production fluid (mainly viscous crude) and the mixture of steam between contact, make mixture
Pressure cannot act on oil reservoir, to eliminate injection steam to back pressure caused by oil reservoir.
After high steam is injected from the first oil pipe 21 (preferably steam quality is 7.0MPa in 70% or so pressure), pass through
It just will form the steam stream of high speed injection when nozzle 4, the negative pressure chamber 6 in this way around nozzle 4 forms certain negative pressure, at this moment work
Crude oil below tool 17 in pit shaft will be entered negative by well liquid import 12, the production liquid channel 7 of channel cylinder 11 and production fluid entrance 5
Pressure chamber 6, then with enter trunnion 8 together with the high velocity vapor that nozzle 4 gushes out, by being sufficiently mixed and pass through in trunnion 8
After energy converts (pressure energy is converted to speed energy, that is, kinetic energy is converted to potential energy), diffuser 10 is entered back into.Expanding
In separate tube 10 again by energy conversion (speed can be converted to pressure energy, kinetic energy is namely converted to potential energy) after, finally by
Production fluid spout 9 and production fluid outlet 15 spray, into being given rise to ground in the annular space between instlated tubular 16 and the first oil pipe 21
Face.
In an implementation, it is preferable that it is generally that instlated tubular 16 is lower at midpoint of pay zone, it is connected on the first oil pipe 21
Under packer 19 to above oil reservoir 10 meters, and the first oil pipe 21 generally to descend at midpoint of pay zone or substantially with it is heat-insulated
The same depth of pipe 16.In addition, on the first oil pipe 18 packer 19 of institute's band also should under at more than oil reservoir 10 meters.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.Therefore, it includes excellent that the following claims are intended to be interpreted as
Select embodiment and fall into having altered and/or modifying for the scope of the invention, the change that embodiment according to the present invention is made and/
Or modification should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of viscous crude steam jet lifting implement characterized by comprising
Top connection；
Seating nipple, the upper end connect the top connection, are internally provided with nozzle, negative pressure chamber and mixing diffusion chamber, the work
Well liquid import is further respectively had on cylinder cylinder, the production fluid entrance that is connected to the negative pressure chamber and mixes diffusion chamber with described
The production fluid spout of connection；
Channel cylinder is socketed in outside the seating nipple, and interior be equipped with produces liquid channel and production fluid outlet, the production liquid channel
One end and the well liquid inlet communication, the other end for producing liquid channel are connected to the production fluid entrance, and the production fluid goes out
Mouth and the production fluid spout connection；
Partition is connected to the lower section for being located at the diffuser in the seating nipple, separates the well liquid import and the output
Liquid spout；
Lower contact connects the lower end of the seating nipple.
2. tool according to claim 1, which is characterized in that under the action of negative pressure, viscous crude is logical through producing liquid from well liquid import
Road, which enters negative pressure chamber and enters with the high steam that nozzle ejects, to be mixed after diffuser casing mixed, from the production fluid spout
It is lifted after production fluid outlet enters annular space.
3. tool according to claim 1 or 2, which is characterized in that the mixing diffusion chamber includes connecting with negative pressure chamber
Trunnion and the diffuser that is connect with the trunnion, the intracavity diameter of the trunnion be less than the intracavity diameter of the negative pressure chamber, institute
The intracavity diameter for stating diffuser is greater than the intracavity diameter of the trunnion.
4. tool according to claim 3, which is characterized in that the nozzle, negative pressure chamber, trunnion and diffuser successively connect
It is logical, the negative pressure chamber, trunnion and diffuser integrally connected.
5. tool according to claim 3 or 4, which is characterized in that the nozzle extends into the negative pressure chamber, the spray
The outlet of mouth is outwardly protruded towards the negative pressure chamber, and the top of the nozzle is equipped with upper baffle ring.
6. tool according to any one of claim 3 to 5, which is characterized in that the entrance of the trunnion is equipped with and institute
The horn mouth for stating negative pressure chamber's connection is equipped with downward widened transition structure, the diffusion between the trunnion and the diffuser
The bottom of pipe is dome shape.
7. tool according to claim 6, which is characterized in that the channel cylinder is symmetrically arranged at intervals with multiple production liquid
Channel and multiple production fluid outlets, multiple production fluid outlets are arranged obliquely with multiple production fluid spouts.
8. a kind of steam gas lift system, which is characterized in that including viscous crude steam jet described in any one of claims 1 to 7
Lifting implement, the top connection of the tool are connected with the first oil pipe, and the lower contact of the tool is connected with the second oil pipe, the tool
Upper end, which is located at outside the first oil pipe, is arranged with instlated tubular, and the lower end of the tool, which is located on the second oil pipe, to be connected with for separating steam
Or less liquid level tubing packer.
9. system according to claim 8, which is characterized in that the tubing packer is located above oil reservoir not less than 10 meters
Place, the instlated tubular is located at midpoint of pay zone, and the steam quality of the high steam used is 68%~75%, steam pressure
For 7.0MPa.
10. system according to claim 9, which is characterized in that under the action of negative pressure, viscous crude is logical through producing liquid from well liquid import
Road, which enters negative pressure chamber and enters with the high steam that nozzle ejects, to be mixed after diffuser casing mixed, from the production fluid spout
It is lifted after production fluid exports the annular space entered between the instlated tubular and first oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665291.XA CN109386256B (en) | 2017-08-07 | 2017-08-07 | Thickened oil steam jet flow lifting tool and steam gas lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665291.XA CN109386256B (en) | 2017-08-07 | 2017-08-07 | Thickened oil steam jet flow lifting tool and steam gas lifting system |
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| Publication Number | Publication Date |
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| CN109386256A true CN109386256A (en) | 2019-02-26 |
| CN109386256B CN109386256B (en) | 2021-06-25 |
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| CN201710665291.XA Active CN109386256B (en) | 2017-08-07 | 2017-08-07 | Thickened oil steam jet flow lifting tool and steam gas lifting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464092A (en) * | 2020-03-31 | 2021-10-01 | 中国石油天然气股份有限公司 | Wax control device and oil recovery wax control tubular column |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3551074A (en) * | 1968-11-22 | 1970-12-29 | Walhamlin Inc | Flow augmenting device for oil wells |
| US4336839A (en) * | 1980-11-03 | 1982-06-29 | Rockwell International Corporation | Direct firing downhole steam generator |
| CN201162734Y (en) * | 2007-09-27 | 2008-12-10 | 西南石油大学 | Novel two-stage efflux pump for oil extraction |
| CN201843599U (en) * | 2010-10-22 | 2011-05-25 | 中国石油化工股份有限公司 | Thermal lifting device for heavy oil in ultradeep layer |
| CN205577962U (en) * | 2016-03-08 | 2016-09-14 | 中国石油化工股份有限公司 | Long horizontal well double -flow -passage of viscous crude sprays and annotates vapour device |
| CN205591888U (en) * | 2016-01-22 | 2016-09-21 | 中国石油化工股份有限公司 | Drainage oil extracting worker tubular column of planting |
| CN205937249U (en) * | 2016-08-23 | 2017-02-08 | 中国石油化工股份有限公司 | Oil jacket is with adopting jet pump |
-
2017
- 2017-08-07 CN CN201710665291.XA patent/CN109386256B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3551074A (en) * | 1968-11-22 | 1970-12-29 | Walhamlin Inc | Flow augmenting device for oil wells |
| US4336839A (en) * | 1980-11-03 | 1982-06-29 | Rockwell International Corporation | Direct firing downhole steam generator |
| CN201162734Y (en) * | 2007-09-27 | 2008-12-10 | 西南石油大学 | Novel two-stage efflux pump for oil extraction |
| CN201843599U (en) * | 2010-10-22 | 2011-05-25 | 中国石油化工股份有限公司 | Thermal lifting device for heavy oil in ultradeep layer |
| CN205591888U (en) * | 2016-01-22 | 2016-09-21 | 中国石油化工股份有限公司 | Drainage oil extracting worker tubular column of planting |
| CN205577962U (en) * | 2016-03-08 | 2016-09-14 | 中国石油化工股份有限公司 | Long horizontal well double -flow -passage of viscous crude sprays and annotates vapour device |
| CN205937249U (en) * | 2016-08-23 | 2017-02-08 | 中国石油化工股份有限公司 | Oil jacket is with adopting jet pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464092A (en) * | 2020-03-31 | 2021-10-01 | 中国石油天然气股份有限公司 | Wax control device and oil recovery wax control tubular column |
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