CN106555574A - Sand control, steam injection integrated apparatus and method - Google Patents
Sand control, steam injection integrated apparatus and method Download PDFInfo
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- CN106555574A CN106555574A CN201510621120.8A CN201510621120A CN106555574A CN 106555574 A CN106555574 A CN 106555574A CN 201510621120 A CN201510621120 A CN 201510621120A CN 106555574 A CN106555574 A CN 106555574A
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- steam injection
- sand control
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- sand
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The present invention relates to a kind of oil field oil gas steam injection quarrying apparatus, particularly a kind of sand control, steam injection integrated apparatus.The invention further relates to the method for realizing sand control, steam injection using this sand control, steam injection integrated apparatus.Sand control disclosed by the invention, steam injection integrated apparatus, it is connected in sequence by the first insulated tubing, heat-insulated down-well compensator, the second insulated tubing, steam injection ball-and-seat, packing device, intubation seal device and at least one sand control steam injection unit, by by sand control installation, gas filling device integration design, realizing a set of tubing string can be while plays sand control, steam injection efficiency, simplify process, the generation of complex situations is avoided, sand control and steam injection efficiency is effectively increased.
Description
Technical field
The present invention relates to a kind of oil field oil gas steam injection quarrying apparatus, particularly a kind of sand control, steam injection integrated apparatus.This
Invention further relates to the method for realizing sand control, steam injection using this sand control, steam injection integrated apparatus
Background technology
At present during Shengli Oil Field heavy crude reservoir heat extraction by steam injection, general steam injection mining type has accounted for more than 96%, by many
The impact of thin heavy oil interlayer heterogeneity, vertical steam entry profile generally expose uneven problem, and oil reservoir inhales vapour
Thickness only accounts for the 30%-50% of gross thickness, particularly thorny between reservoir, has had a strong impact on the development degree of oil reservoir.
In the development process of current heavy oil wells, sand control is first carried out before steam injection, adopts down after sand control packer by oil
Interval sand control pipe is sealed with casing annulus pack gravel sand body, then lower conventional steam injection string carries out steam injection,
Not only measure is complicated for above-mentioned technique, and can not realize sand control, steam injection integration, and in steam injection process, due to note
The high-temperature vapor for entering and casing section directly contact, injure sleeve pipe, and cause a large amount of heat-energy losses.And in steam injection process,
It is main by the control for realizing steam flow and mass dryness fraction with vapour lock to a certain extent using ad hoc structure in prior art,
It is the more commonly used in scene to have three kinds of technology modes：It is layered quantitative gas filling technique, single pipe layered with vapour technique and concentric tube point
Layer steam injection technology.Layered quantitative gas filling technique passes through dispensing valve first one unit of note, and after reaching steam injection amount, pitching closing is somebody's turn to do again
Steam injection passage, changes another unit of note, as the steam injection amount of each steam injection unit of the technology mode is fixed, it is not necessary to pass through
The size in machinery or duct is controlled or adjusts；, using double suspensions, down-hole is by outstanding for concentric tube separated layer gas injection tube technique well head
Hang sealer and two sections of oil reservoirs are separated by Delaminated steam injecting packer, it is real by telescopic slide sealing between inner tube and outer tube
Existing layer steam injection, steam respectively enter inner and outer tubes from two passages on ground, realize two notes by ground assignment flow process
The steam flow control of vapour passage；Oil reservoir is separated into 2-3 with vapour technique in same well section by the single pipe layered of maturation at present
Independent steam injection unit more than individual, carries out steam distribution in separate layer in a steam injection simultaneously to which, and according to the different qualities of each oil reservoir
Match somebody with somebody vapour according to design proportion, reach the requirement of layer steam injection.
Therefore, in existing sand control, steam injection technology, sand control, steam injection technology are complicated, and due to using dual string
Tubular column structure easily causes steam quality between each layer and distributes unbalanced problem, be assigned to the steam enthalpy ratio of each oil reservoir with
Steam flow causes the heat content of steam effectively distribute and utilize, additionally, heat in steam injection process than inconsistent
Loss is serious, easily injury sleeve pipe etc., and these problems have become sand control, with urgent problem in vapour technique.
The content of the invention
For the above-mentioned technical problem in the presence of prior art, the present invention proposes a kind of sand control, steam injection integrated apparatus.
By the integrated apparatus of the present invention, a set of tubing string can be realized during thickened oil recovery while realizing sand control and steam injection function,
And the mass dryness fraction steam injection such as single tube can be realized, is particularly suitable for exploiting with multiple zone steam injection.The invention further relates to use this sand control,
The method that steam injection integrated apparatus carry out sand control, steam injection.
According to the first aspect of the invention, it is proposed that a kind of sand control, steam injection integrated apparatus, the integrated apparatus are by first
Insulated tubing, heat-insulated down-well compensator, the second insulated tubing, steam injection ball-and-seat, packing device, intubation seal device with
And at least one sand control steam injection unit be connected in sequence, wherein, sand control steam injection unit include duplex joint, outer sand control dress
Put and interior gas filling device, interior gas filling device is located at the inner chamber of outer sand control installation, outer sand control installation and duplex joint bottom
External screw thread is connected, and outer sand control installation is screen mesh type sand screen；Interior gas filling device by steam distributor and steam distributor according to
Secondary to be formed by connecting, steam distributor upper end is connected with the female thread of duplex joint bottom, the bottom of steam distributor
It is connected with steam distributor.
Used as a modification of the present invention, the integrated apparatus include multiple sand control steam injection units, the adjacent sand control note
Long-acting vapour is connected between vapour unit and drives sealer, by different oil reservoir phase parting seals；Packing device is that steam drives packing
Device.
The integrated apparatus also include safety joint, and the safety joint one end is connected with intubation seal device, its other end
It is connected with duplex joint；Sealer connection is driven by long-acting vapour between second insulated tubing and steam injection ball-and-seat.
The first closed chamber that heat-insulated down-well compensator includes inner sliding pipe and is set on the outside of the inner sliding pipe, inner sliding pipe and first
The first seal assembly is provided between closed chamber, the upper end of the first closed chamber is additionally provided with the first pressure cap, to improve first
The sealing effectiveness of closed chamber；The heat-insulated down-well compensator also includes the insulated exterior duct being connected with the lower end of the first closed chamber,
The heat-insulated down-hole compensation device two ends are provided with change buckle joint.
Used as another improvement of the present invention, long-acting vapour drives sealer includes hollow central canal, on the outer wall of the central canal
Seal member is provided with, the outer wall upper measurement of the seal member is provided with heat-sensitive duplex metal, the outer wall upper measurement of the heat-sensitive duplex metal sets
There is high temperature resistant packing element.
The seal member includes the second closed chamber, the second seal assembly and the second pressure cap, during second closed chamber is set in
The outer wall of heart pipe, between the centrally disposed pipe of the second seal assembly and the second closed chamber, the second seal assembly upper end is by
Two pressure caps are fixed.
The upper and lower ends of high temperature resistant packing element are respectively arranged with perform ring and lower gear ring, and the bottom of the lower gear ring is provided with pin,
By the pin, lower gear ring, the second closed chamber and central canal are linked together；The lower section of lower gear ring, central canal it is outer
Anticollision ring is provided with wall.
Used as another improvement of the present invention, steam distributor is by phase separating device, the connection of steam injection arm in commutator, pipe
Form；In dividing plate of the cavity axis for axle within phase separating device inner chamber is provided with pipe, two end lines of the dividing plate and the pipe
The inner chamber of phase separating device in the pipe is separated into two parts inner chamber, wherein one by the bore seal laminating of phase separating device
Partial lumen is connected with the steam distributor, can directly to oil reservoir steam injection, and another part inner chamber is connected with steam injection arm,
Introduce steam into next oil reservoir.
Used as another improvement of the present invention, commutator inner chamber arranges spinning disk, and the spinning disk is distributed in the shape of a spiral；It is described
Steam distributor inner chamber is set to taper diffusingsurface.
According to the second aspect of the invention, it is proposed that using being prevented according to sand control mentioned above, steam injection integrated apparatus
The method of sand, steam injection, comprises the following steps：
Step one：Fill out chemical sand control.
First, enter to note sandpipe post under, high temperature precoated sand is homogeneously added into oil reservoir；
After note sand, oil field water is just being replaced to down-hole by noting sandpipe post, the high temperature precoated sand in tubing string is being replaced into out note completely
Sandpipe post, rises to note sandpipe post, and closing well is waited solidifying；
Under enter to bore plug tubing string, bore plug, it is clean to liquid is gone out to carry out anti-flushing well, rises and to bore plug tubing string；
Finally, enter pipe cleaning tubing string under, carry out drifting and test set, pipe cleaning, well-flushing, it is clean to liquid is gone out, act pipe cleaning tubing string.
Step 2：Assembling, under enter sand control, steam injection integrated apparatus.
The number of plies of steam injection oil reservoir selects the sand control steam injection unit of equal number as needed；
Sand control, steam injection integrated apparatus are attached with fixation, sealing is driven by long-acting vapour between multiple sand control steam injection units
Device is attached；
After assembling, by under sand control, steam injection integrated apparatus lower going-into-well so that the position of sand control steam injection unit with need note
The position of the oil reservoir of vapour is corresponding.
Step 3：To annular injection nitrogen.
By sleeve valve to oil jacket annular space nitrogen injection, annulus fluid is replaced into fuel-displaced set annular space, reduce instrument fouling
While, further improve effect of heat insulation.
Step 4：The mass dryness fraction steam injections such as layering.
Connection ground steam injection pipeline, blow-on steam injection, steam enter sand control, steam injection integrated apparatus by ground steam transmitting pipe line,
The long-acting vapour drive sealer as the temperature of steam injection string is raised gradually swollen envelope, and then realize oily Inter-zonal packing sealing,
Realize that steam quality distributes equal by underground steam allotter, further corresponding oil reservoir is entered by the steam distributor
Row steam injects, so as to realize the mass dryness fraction selective sand control steam injection such as single tube.
Compared with prior art, it is an advantage of the current invention that by by sand control installation, gas filling device integration design,
Realize a set of tubing string and process can be simplified while play sand control, steam injection efficiency, it is to avoid the generation of complex situations；
Meanwhile, by using cooperatively for allotter and distributor, can realize single pipe layered sand control, etc. mass dryness fraction steam injection, it is ensured that point
The steam enthalpy ratio and steam flow ratio for being fitted on each oil reservoir is consistent, additionally, drive packer, long-acting vapour by steam driving
Being used in combination for sealer, intubation seal device and heat-insulated down-well compensator, improves the heat seal effect and diarrhea of heat type of tubing string
With rate, it is to avoid heat loss, injury of the steam to sleeve pipe is also mitigated, so as to effectively increase sand control and steam injection efficiency.
Description of the drawings
Fig. 1 is the sand control of the present invention, steam injection integrated apparatus schematic diagram；
Half sectional views of the Fig. 2 for the heat-insulated down-well compensator of Fig. 1；
Half sectional views of the Fig. 3 for the long-acting vapour drive sealer of Fig. 1；
Half sectional views of the Fig. 4 for the steam drive packer of Fig. 1；
Half sectional views of the Fig. 5 for the intubation seal device of Fig. 1.
Fig. 6 is the schematic diagram after the steam distributor of Fig. 1 is connected with steam distributor.
Specific embodiment
Detailed description for the present invention and technology contents, coordinate description of the drawings as follows, but accompanying drawing only provides and refers to and say
It is bright to be used, not for being any limitation as to the present invention.
Fig. 1 is the sand control of the present invention, steam injection integrated apparatus schematic diagram.Sand control, steam injection integrated apparatus are heat-insulated by first
Oil pipe 1, heat-insulated down-well compensator 2, the second insulated tubing 3, long-acting vapour drive sealer 4, steam injection ball-and-seat 5, steam and drive
Packer 6, intubation seal device 7, safety joint 8 and sand control steam injection unit 9 are connected in sequence, sand control steam injection list
Unit 9 includes duplex joint 91, screen mesh type sand screen 92 and interior gas filling device, and interior gas filling device is located at screen mesh type sand screen
92 inner chamber, screen mesh type sand screen 92 are connected with the external screw thread of 91 bottom of duplex joint；Interior gas filling device is by steam
Allotter 93 is connected in sequence with steam distributor 94,93 upper end of steam distributor and 91 bottom of duplex joint
Female thread be connected, steam distribute 93 devices bottom be connected with steam distributor 94.Adjacent sand control steam injection unit 9 it
Between be connected with long-acting vapour and drive sealer 4, by different oil reservoir phase parting seals；Safety joint one end and intubation seal device phase
Even, its other end is connected with duplex joint.
Fig. 2 understand, heat-insulated down-well compensator 2 includes inner sliding pipe 22, its upper end be connected with change buckle joint 21, with every
Deep fat pipe 1 connects, and its lower end is connected with baffle ring 27；First closed chamber 25, which is set in the outside of inner sliding pipe 22, interior
It is provided with the first seal assembly 24 between slip pipe 22 and the first closed chamber 25, the first pressure cap 23, which is connected to the first closed chamber
25 upper end, and enclose and be located on the outer wall of inner sliding pipe 22, to fix the first seal assembly 24, to improve the first sealing
The sealing effectiveness of room 25；Insulated exterior duct 26, its upper end are connected with 25 lower end of the first closed chamber, and its lower end is connected with down
Become buckle joint 28, be connected with the second insulated tubing 3.
As can be seen from Figure 3, long-acting vapour drives sealer 4 includes hollow central canal 42, arranges on the outer wall of the central canal 42
There is seal member, the outer wall upper measurement of the seal member is provided with heat-sensitive duplex metal 47, the outer wall upper measurement of the heat-sensitive duplex metal 47 sets
There is high temperature resistant packing element 48.In a preferred embodiment, seal member includes the second closed chamber 45, the second seal assembly
44 and second pressure cap 43, second closed chamber 45 is set in the outer wall of central canal 42, and the second seal assembly 44 is arranged
Between central canal 42 and the second closed chamber 45,44 upper end of the second seal assembly is fixed by the second pressure cap 43.High temperature resistant
The upper and lower ends of packing element 48 are respectively arranged with perform ring 46 and lower gear ring 49, and the bottom of the lower gear ring 49 is provided with pin
410, by the pin 410, lower gear ring 49, the second closed chamber 45 and central canal 42 are linked together, fetter resistance to height
The radial displacement of warm packing element 48.Anticollision ring 411 is provided with the lower section of lower gear ring 49, the outer wall of central canal 42.Center
The upper end of pipe 42 is connected with joint 41.
As can be seen from Figure 4, steam drive packer 6 include top connection 61, pin 62, sealing ring 63, set piston 64,
Inner central tube 65, cylinder sleeve 66, power transmission set 67, lock ring 68, fishing head 69, overcoat 610, solution big envelope 611, shear pin
612nd, packer accessory upper baffle ring 613, sleeve 614, packer accessory 615, packer accessory lower baffle ring 616, upper cone 617, slips
Cover 618, slips 619, central canal 620, lock claw 621, sliding sleeve 622, lower contact 623.It is setting：Steam drives packer
Under 6 to after precalculated position, steel ball is put into in oil pipe, when hydraulic pressure passes to the hydraulic base sealed part of packer, setting part
In the presence of fluid pressure, power transmission set 67 is promoted to move downward, power transmission set 67 passes through packer accessory upper baffle ring 613 and set
Cylinder 614, first shears through setting shear pin 6121, then promotes the upper cone 617 and packer accessory 615 of packer to move downward,
Two interpyramidal distances reduce, and slips 619 opens, is supported on casing wall.Power transmission set 67 continues to move downward, and cuts off
Setting 6122,613 compression packing part 615 of packer accessory upper baffle ring is promoted, the enlarged outside diameter of packer accessory 615, packing oil is made
Collar-shaped space.Packer accessory 615 and slips 619 are locked by retaining mechanism simultaneously, setting to finish.Continue to suppress, cut off
The pin of hydraulic releasing part, setting sliding sleeve 622 promote support ring to move down, and make lock claw 621 lose inner support, when
During upper lifting pipe post, in the central canal 65 of 621 indentation packer of lock claw, thus make the hydraulic base sealed part of packer 6 and interior
Central canal 65 is departed from the body of packer 6, realizes giving up.If rising to design pressure, and packer not given up,
Then rotate forward tubing string, using the pressure of packer give up part make packer force give up.Deblocking：By fishing tool lower going-into-well
In, after dragging for the fishing head 69 of packer, upper lifting pipe post cuts off deblocking pin, continues upper lifting pipe post, solves big envelope 611
Begin to move up, strut lock ring 68, make retaining mechanism ineffective, then upper lifting pipe post, deblocking set drive power transmission set 67
Packer accessory 615 is discharged with packer accessory upper baffle ring 613；Then packer accessory upper baffle ring 613, sleeve 614 drive upper cone
617 move up, and two interpyramidal distances expand, and slips 619 is retracted under spring force, and packer 6 is released,
Realize deblocking.
As can be seen from Figure 5, intubation seal device 7 includes intubation 72, and its upper end is connected with centralizer 71, with steam injection single current
Valve 5 connects；Closed chamber 74, which is set in the lower end of the intubation 72, between the intubation 72 and the closed chamber 74
Seal assembly 75 is provided with, the upper end of the seal assembly 75 is fixed by pressure cap 73, and which is connected to the closed chamber 74
Upper end, there is change buckle joint 73 upper end of pressure cap, drives packer 6 with steam and is connected；There is variable buckle 74 lower end of the closed chamber
Joint, is connected with safety joint 8.
From shown in Fig. 6：Steam distributor 93 includes commutator 931, and 931 lower end of commutator is connected with pipe and mutually separates dress
932 are put, dividing plate 933 of the cavity axis for axle, two end lines of the dividing plate 933 within 932 inner chamber of phase separator is provided with pipe
With the surface of internal cavity palette of phase separating device 932 in pipe, the inner chamber of phase separating device 932 in pipe is separated into into two
Point inner chamber, a portion inner chamber are connected with steam distributor 94, can directly to oil reservoir steam injection, another part inner chamber and
Steam injection arm 934 is connected, and introduces steam into next oil reservoir.931 inner chamber of commutator is provided with spinning disk, the spinning disk
It is distributed in the shape of a spiral；Steam distributor inner chamber is set to taper diffusingsurface.
Below by according to Fig. 1-6 describing the method for carrying out sand control, steam injection using sand control, steam injection integrated apparatus, its bag
Include following steps：
Step one：Fill out chemical sand control.
First, enter to note sandpipe post under, high temperature precoated sand is homogeneously added into oil reservoir；
After note sand, oil field water is just being replaced to down-hole by noting sandpipe post, the high temperature precoated sand in tubing string is being replaced into out note completely
Sandpipe post, rises to note sandpipe post, and closing well is waited solidifying；
Under enter to bore plug tubing string, bore plug, it is clean to liquid is gone out to carry out anti-flushing well, rises and to bore plug tubing string；
Finally, enter pipe cleaning tubing string under, carry out drifting and test set, pipe cleaning, well-flushing, it is clean to liquid is gone out, act pipe cleaning tubing string.
Step 2：Assembling, under enter sand control, steam injection integrated apparatus.
The number of plies of steam injection oil reservoir selects the sand control steam injection unit 9 of equal number as needed；
According to the structure shown in Fig. 1, sand control, steam injection integrated apparatus are attached with fixation, multiple sand control steam injection units
Sealer 4 is driven by long-acting vapour between 9 to be attached；
After assembling, by under sand control, steam injection integrated apparatus lower going-into-well so that the position of sand control steam injection unit 9 and needs
The position of the oil reservoir of steam injection is corresponding.
Step 3：To annular injection nitrogen.
By sleeve valve to oil jacket annular space nitrogen injection, annulus fluid is replaced into fuel-displaced set annular space, reduce instrument fouling
While, further improve effect of heat insulation.
Step 4：The mass dryness fraction steam injections such as layering.
Connection ground steam injection pipeline, blow-on steam injection, steam enter sand control, steam injection integrated apparatus by ground steam transmitting pipe line,
Long-acting vapour drive sealer 4 as the temperature of steam injection string is raised gradually swollen envelope, and then realize oily Inter-zonal packing sealing, lead to
Cross steam distributor 93 and realize that steam quality distribution is equal, steam note is carried out to corresponding oil reservoir by steam distributor further
Enter, so as to realize the mass dryness fraction selective sand control steam injection such as single tube.
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 use this
The equivalence changes of bright patent spirit, all should all belong to the scope of the claims of the present invention.
Claims (10)
1. sand control, steam injection integrated apparatus, it is characterised in that：The integrated apparatus are compensated by the first insulated tubing, heat-insulated down-hole
Device, the second insulated tubing, steam injection ball-and-seat, packing device, intubation seal device and at least one sand control steam injection unit
It is connected in sequence, wherein, described sand control steam injection unit includes duplex joint, outer sand control installation and interior gas filling device,
The interior gas filling device is located at the inner chamber of the outer sand control installation, the outer sand control installation and the duplex joint bottom
External screw thread is connected, and the outer sand control installation is screen mesh type sand screen；The interior gas filling device is by steam distributor and steam
Distributor is connected in sequence, and the steam distributor upper end is connected with the female thread of the duplex joint bottom, institute
The bottom for stating steam distributor is connected with the steam distributor.
2. sand control as claimed in claim 1, steam injection integrated apparatus, it is characterised in that：The integrated apparatus include multiple anti-
Sand steam injection unit, is connected with long-acting vapour and drives sealer between the adjacent sand control steam injection unit, by different oil reservoir phase point
Every sealing；Described packing device is that steam drives packer.
3. sand control as claimed in claim 1 or 2, steam injection integrated apparatus, it is characterised in that：The integrated apparatus are also included
There is safety joint, the safety joint one end is connected with the intubation seal device, its other end is connected with the duplex joint；
Sealer connection is driven by long-acting vapour between second insulated tubing and the steam injection ball-and-seat.
4. sand control as claimed in claim 3, steam injection integrated apparatus, it is characterised in that：Described heat-insulated down-well compensator bag
The first closed chamber for including inner sliding pipe and being set on the outside of the inner sliding pipe, sets between the inner sliding pipe and first closed chamber
The first seal assembly is equipped with, the upper end of first closed chamber is additionally provided with the first pressure cap, to improve first sealing
The sealing effectiveness of room；The heat-insulated down-well compensator also includes the insulated exterior duct being connected with the lower end of the first closed chamber, should be every
Under hot well, compensation device two ends are provided with change buckle joint.
5. sand control as claimed in claim 2, steam injection integrated apparatus, it is characterised in that：Described long-acting vapour drives sealer bag
Hollow central canal is included, on the outer wall of the central canal, seal member is provided with, the outer wall upper measurement of the seal member is provided with temperature-sensitive
Bimetallic, the outer wall upper measurement of the heat-sensitive duplex metal are provided with high temperature resistant packing element.
6. sand control as claimed in claim 5, steam injection integrated apparatus, it is characterised in that described seal member includes second
Closed chamber, the second seal assembly and the second pressure cap, second closed chamber are set in the outer wall of the central canal, and described
Two seal assemblies are arranged between the central canal and second closed chamber, and the second seal assembly upper end is by the second pressure cap
It is fixed.
7. sand control as claimed in claim 5, steam injection integrated apparatus, it is characterised in that：Described high temperature resistant packing element it is upper and lower
Two ends are respectively arranged with perform ring and lower gear ring, and the bottom of the lower gear ring is provided with pin, by the pin, by lower gear
Ring, the second closed chamber and central canal link together；Anticollision is provided with the lower section of lower gear ring, the outer wall of central canal
Ring.
8. sand control as claimed in claim 1 or 2, steam injection integrated apparatus, it is characterised in that：Described
Steam distributor is formed by connecting by phase separating device, steam injection arm in commutator, pipe；Phase separating device inner chamber in the pipe
Dividing plate of the cavity axis for axle within being provided with, two end lines of the dividing plate are fitted with the bore seal of phase separating device in the pipe,
The inner chamber of phase separating device in the pipe is separated into into two parts inner chamber, a portion inner chamber and the steam distributor phase
Connection, can directly to oil reservoir steam injection, and another part inner chamber is connected with the steam injection arm, introduces steam into next oil reservoir.
9. sand control as claimed in claim 8, steam injection integrated apparatus, it is characterised in that：The commutator inner chamber arranges eddy flow
Piece, the spinning disk are distributed in the shape of a spiral；The steam distributor inner chamber is set to taper diffusingsurface.
10. it is a kind of to carry out sand control, steam injection using sand control as claimed in any one of claims 1-9 wherein, steam injection integrated apparatus
Method, comprises the following steps：
Step one：Fill out chemical sand control.
First, enter to note sandpipe post under, high temperature precoated sand is homogeneously added into oil reservoir；
After note sand, oil field water is just being replaced to down-hole by noting sandpipe post, the high temperature precoated sand in tubing string is being replaced into out note sandpipe completely
Post, rises to note sandpipe post, and closing well is waited solidifying；
Under enter to bore plug tubing string, bore plug, it is clean to liquid is gone out to carry out anti-flushing well, rises and to bore plug tubing string；
Finally, enter pipe cleaning tubing string under, carry out drifting and test set, pipe cleaning, well-flushing, it is clean to liquid is gone out, act pipe cleaning tubing string.
Step 2：Assembling, under enter sand control, steam injection integrated apparatus.
The number of plies of steam injection oil reservoir selects the sand control steam injection unit of equal number as needed；
Sand control, steam injection integrated apparatus are attached with fixation, sealer are driven by long-acting vapour between multiple sand control steam injection units and is entered
Row connection；
After assembling, by under sand control, steam injection integrated apparatus lower going-into-well so that the position of sand control steam injection unit with need steam injection
The position of oil reservoir is corresponding.
Step 3：To annular injection nitrogen.
By sleeve valve to oil jacket annular space nitrogen injection, annulus fluid is replaced into fuel-displaced set annular space, reduce the same of instrument fouling
When, further improve effect of heat insulation.
Step 4：The mass dryness fraction steam injections such as layering.
Connection ground steam injection pipeline, blow-on steam injection, steam enter sand control, steam injection integrated apparatus by ground steam transmitting pipe line,
The long-acting vapour drive sealer as the temperature of steam injection string is raised gradually swollen envelope, and then realize oily Inter-zonal packing sealing,
Realize that steam quality distributes equal by underground steam allotter, further corresponding oil reservoir is entered by the steam distributor
Row steam injects, so as to realize the mass dryness fraction selective sand control steam injection such as single tube.
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| CN201510621120.8A CN106555574B (en) | 2015-09-25 | 2015-09-25 | Sand prevention and steam injection integrated device and method |
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| CN201510621120.8A CN106555574B (en) | 2015-09-25 | 2015-09-25 | Sand prevention and steam injection integrated device and method |
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| CN106555574B CN106555574B (en) | 2022-12-27 |
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| CN108386174A (en) * | 2018-03-14 | 2018-08-10 | 西南石油大学 | SAGD Uniform Horizontal Well steam injection tubing strings and technique |
| CN109779588A (en) * | 2017-11-10 | 2019-05-21 | 中国石油化工股份有限公司 | Thermal production well steam injection, lost circulation prevention anti-flushing well and production integration tubing string |
| CN110107270A (en) * | 2018-02-01 | 2019-08-09 | 中国石油化工股份有限公司 | General sand proof well single-point layer steam injection method |
| CN110608023A (en) * | 2018-06-15 | 2019-12-24 | 中国石油化工股份有限公司 | Adaptability boundary analysis and evaluation method for stratified steam injection of thickened oil |
| CN110939420A (en) * | 2019-12-31 | 2020-03-31 | 克拉玛依联科节能环保技术有限公司 | Thick oil thermal recovery layering injection and recovery integrated pipe column tool |
| CN111219171A (en) * | 2018-11-27 | 2020-06-02 | 中国石油化工股份有限公司 | High-strength filling sand prevention process method for multi-turn steam injection well |
| CN111364956A (en) * | 2020-03-18 | 2020-07-03 | 中国海洋石油集团有限公司 | Sand control injection allocation integrated packer |
| CN114251077A (en) * | 2022-03-01 | 2022-03-29 | 中国石油大学胜利学院 | Double packer steam injection integrated device and method for oil field thick oil exploitation |
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| CN110107270B (en) * | 2018-02-01 | 2021-08-27 | 中国石油化工股份有限公司 | Single-point layered steam injection method for general sand control well |
| CN108386174A (en) * | 2018-03-14 | 2018-08-10 | 西南石油大学 | SAGD Uniform Horizontal Well steam injection tubing strings and technique |
| CN108386174B (en) * | 2018-03-14 | 2020-11-03 | 西南石油大学 | SAGD horizontal well uniform steam injection pipe column and process |
| CN110608023A (en) * | 2018-06-15 | 2019-12-24 | 中国石油化工股份有限公司 | Adaptability boundary analysis and evaluation method for stratified steam injection of thickened oil |
| CN111219171A (en) * | 2018-11-27 | 2020-06-02 | 中国石油化工股份有限公司 | High-strength filling sand prevention process method for multi-turn steam injection well |
| CN110939420A (en) * | 2019-12-31 | 2020-03-31 | 克拉玛依联科节能环保技术有限公司 | Thick oil thermal recovery layering injection and recovery integrated pipe column tool |
| CN111364956A (en) * | 2020-03-18 | 2020-07-03 | 中国海洋石油集团有限公司 | Sand control injection allocation integrated packer |
| CN114251077A (en) * | 2022-03-01 | 2022-03-29 | 中国石油大学胜利学院 | Double packer steam injection integrated device and method for oil field thick oil exploitation |
| CN114251077B (en) * | 2022-03-01 | 2022-04-29 | 中国石油大学胜利学院 | Double packer steam injection integrated device and method for oil field thick oil exploitation |
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