CN105275430B - Sliding sleeve and layering injection string - Google Patents
Sliding sleeve and layering injection string Download PDFInfo
- Publication number
- CN105275430B CN105275430B CN201510665392.8A CN201510665392A CN105275430B CN 105275430 B CN105275430 B CN 105275430B CN 201510665392 A CN201510665392 A CN 201510665392A CN 105275430 B CN105275430 B CN 105275430B
- Authority
- CN
- China
- Prior art keywords
- ring cavity
- hole
- sliding part
- tubing string
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
This application discloses a kind of sliding sleeve and layering injection strings.The sliding sleeve includes：The ontology of lengthwise extension, ontology offer the fluid channel to circulate for fluid along its lengthwise extending direction, and the side wall through ontology offers first through hole；This external body is sheathed on, ring cavity is formed between body and ontology, the second through-hole is provided on the wall of body；The first sliding part being set in ring cavity, the first sliding part have the closure part that can block first through hole；Ring cavity is divided into the first ring cavity section and the second ring cavity section by the first sliding part, wherein the first ring cavity section is connected with first through hole and the second through-hole, second ring cavity Duan Zhongneng houses thermal expansion material, thermal expansion material can expand to increase the pressure in the second ring cavity section when temperature reaches predetermined value, so as to which the first sliding part be pushed to be slided in ring cavity, so as to release closure of the closure part to first through hole, so that the first ring cavity section is connected with fluid channel.
Description
Technical field
The application belongs to oil gas development technology field more particularly to a kind of sliding sleeve and layering injection string.
Background technology
During oil-gas mining, difficulty is lifted to reduce, can usually be injected into reservoir with certain temperature, carries certain heat
For the fluid media (medium) of amount to supplement reservoir energy, the fluid media (medium) can include steam, high-temperature water, high-temperature gas, foam.Such as
During thickened oil recovery, steam can be injected into reservoir, reducing thick oil viscosity is improved its mobility by the heat carried using steam, so as to
Reduce the lifting difficulty of viscous crude.
Can be institute by the tubing string being lowered into the casing of injection well when injecting the fluid media (medium) for supplementing reservoir energy
It states fluid media (medium) and circulation passage is provided.Fluid media (medium) in tubing string is led into reservoir, it usually needs connected on tubing string
Sliding sleeve, the sliding sleeve can be opened to link up tubing string and reservoir in predefined conditions.Such as pitching sliding sleeve can be in the stream in tubing string
The pressure of body medium is opened when reaching predetermined value, so as to which fluid media (medium) is led into reservoir.When it is implemented, it needs to pass through pipe
Column launches sphere to pitching sliding sleeve, injects fluid media (medium), fluid media (medium) into tubing string again after sphere packing tubing string and casing annulus
It is built the pressure in tubing string until pressure reaches predetermined value, by the shear pin cutting of pitching sliding sleeve, pitching sliding sleeve is opened, and links up tubing string and storage
Layer can carry out the construction of injection fluid media (medium) later.Therefore, the operation of note fluid media (medium) is carried out to reservoir using pitching sliding sleeve
It is more complicated；In addition, the restriction of the managed column internal diameter of radial dimension for the sphere launched, often will appear the different injection of tubing string internal diameter
Well needs to be equipped with different pitching sliding sleeves and pitching, in this way, the limited flexibility of injection fluid media (medium) construction；And sphere easily by
Cause to set between sphere and ball seat not sternly into foreign matter in the influence of other factors such as pitching sliding sleeve, good can not insulate
Tubing string and casing annulus, fluid media (medium) can not build the pressure in tubing string, cause pitching sliding sleeve that can not open, and influence note fluid media (medium) and apply
Work.
Invention content
Above-mentioned at least one in order to solve the problems, such as, the application provides a kind of sliding sleeve and layering injection string.
To achieve the above object, this application provides following technical solutions.
A kind of sliding sleeve, including：
The ontology of lengthwise extension, the ontology offer the fluid channel to circulate for fluid along its lengthwise extending direction, pass through
The side wall for wearing the ontology offers first through hole；
Described external body is sheathed on, ring cavity, the wall of the body are formed between the body and the ontology
On be provided with the second through-hole；
The first sliding part being set in the ring cavity, first sliding part have closure part, and the closure part can be sealed
Block up the first through hole；The ring cavity is divided into the first ring cavity section and the second ring cavity section by first sliding part, wherein：
The first ring cavity section is connected with second through-hole；
The second ring cavity Duan Zhongneng houses thermal expansion material, and the thermal expansion material can be sent out when temperature reaches predetermined value
Raw expansion is to increase the pressure in the second ring cavity section, so as to which first sliding part be pushed to be slided in the ring cavity, from
And closure of the closure part to the first through hole is released, so that the first ring cavity section is connected with the fluid channel.
In one embodiment, the closure part is the second sliding part that can block the first through hole, and described second slides
Moving part is set in the fluid channel；Second sliding part is connect by connecting portion with first sliding part, the company
Socket part passes through the first through hole；First sliding part holds up admittedly described second sliding part in the fluid by the connecting portion
It is slided in channel, so that second sliding part releases the closure to the first through hole.
In one embodiment, the closure part is provided with third through-hole, the third through-hole and the first ring cavity section
Connection；First sliding part slides into precalculated position in the ring cavity, and the third through-hole is connected with the first through hole,
The closure part releases the closure to the first through hole.
In one embodiment, first sliding part passes through the shear pin with predetermined shearing strength and the body
Connection.
In one embodiment, the inner wall of the body is provided with shoulder, and first sliding part is provided with limiting section；Institute
When stating the closure part closure first through hole, the shoulder is consolidated on the limiting section top.
In one embodiment, the ontology includes the first noumenon portion being detachably connected and the second body part；Wherein institute
The first noumenon portion is stated close to the first ring cavity section, second body part is close to the second ring cavity section, the first through hole
Through being opened on the side wall in the first noumenon portion；It is formed between the first noumenon portion and second body part seamed
Gap, when second sliding part blocks the first through hole, the end of second sliding part is inserted into the gap.
In one embodiment, the body includes the first sheath body portion and the second sheath body portion that are detachably connected；Wherein institute
The first sheath body portion is stated close to the first ring cavity section, second sheath body portion is close to the second ring cavity section；Second through-hole
It is set in first sheath body portion.
In one embodiment, the direction of second through-hole is substantially identical with the lengthwise extending direction of the ring cavity.
Present invention also provides a kind of layering injection string, including：
The tubing string in precalculated position in the casing of injection well can be lowered into, annular space is formed between the tubing string and described sleeve pipe,
The tubing string has when being lowered into casing the close to the first end of the injection well well head and far from the injection well well head
Two ends；
The first packer being connect with the tubing string, first packer be located at the first end and the second end it
Between；
The second packer being connect with the tubing string, second packer are located at first packer and described second
Between end；
Sliding sleeve as described in one of the claims, the sliding sleeve are connect with the tubing string, are located at first envelope
Between device and second packer.
In one embodiment, the tubing string further includes：
The second end is connected with valve seat, can launch sphere to the valve seat by the tubing string, the sphere can be set
In on the valve seat to insulate the tubing string and the annular space；
The pressure difference sliding sleeve being connect with the tubing string, the pressure difference sliding sleeve be located at first packer and the second end it
Between, the pressure difference sliding sleeve can be opened to connect the tubing string and the annular space when the pressure in the tubing string reaches predetermined value.
By above technical solution, the beneficial effects of the present invention are：The sliding sleeve of the application preferably utilizes supplement storage
The condition that the heat of fluid media (medium) that must be injected during layer energy is opened as it notes fluid media (medium) to supplement reservoir energy
Constructing operation is simplified.
In addition, relative to pitching sliding sleeve, cancel and launch difference to adapt to the tubing string of different inner diameters when opening pitching sliding sleeve
The sphere of size, need to only change the radial dimension of connector accordingly, and the flexibility of constructing operation improves；And it is difficult to occur such as
The problem of pitching sliding sleeve can not be opened ensures that note fluid media (medium) constructing operation can smoothly complete.
With reference to following explanation and attached drawing, only certain exemplary embodiments of this invention is disclosed in detail, specifies the original of the present invention
Reason can be in a manner of adopted.It should be understood that embodiments of the present invention are not so limited in range.In appended power
In the range of the spirit and terms of profit requirement, embodiments of the present invention include many changes, modifications and are equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
Used in a other embodiment, with the feature in other embodiment it is combined or substitute other embodiment in feature.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Description of the drawings
In order to become apparent from explicitly illustrating the technical solution in the embodiment of the present invention, needed in being described below to embodiment
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.In the accompanying drawings：
Structure diagram when Fig. 1 is a kind of the second sliding part closure first through hole of embodiment of the application；
Fig. 2 is structure diagram when the second sliding part shown in FIG. 1 releases the closure to first through hole；
Structure diagram when Fig. 3 is the closure part closure first through hole of the application another embodiment；
Fig. 4 is structure diagram when closure part shown in Fig. 3 releases the closure to first through hole；
Fig. 5 is the partial enlarged view of body shown in Fig. 2 and the first sliding part；
Fig. 6 is a kind of structure diagram of embodiment of the first sliding part shown in fig. 1 or fig. 2 and the second sliding part；
Fig. 7 is the structural representation of the another embodiment of the first sliding part shown in fig. 1 or fig. 2 and the second sliding part
Figure；
Fig. 8 is the structure diagram of the layering injection string of the application embodiment.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly shown
Show, be fully described by, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, what those of ordinary skill in the art were obtained without creative efforts is all
Other embodiment shall fall within the protection scope of the present invention.
In the description of the present application, it is to be understood that indicating positions or the position such as term " on ", " under ", " interior ", " outer "
Relationship be based on the orientation or position shown in Figure of description, be for only for ease of description the application and simplify description rather than
Indicate or imply that signified device or component necessarily have specific orientation or position or carry out structure with specific orientation or position
It makes or operates, therefore it is not intended that limitation to the application protection domain.
Please also refer to Fig. 1 to Fig. 4, a kind of sliding sleeve 10 of the application embodiment offer, including：The ontology of lengthwise extension
100, the ontology 100 offers the fluid channel 103 to circulate for fluid along its lengthwise extending direction, through the ontology 100
Side wall offer first through hole 104.The body 200 being sheathed on outside the ontology 100, the body 200 and the ontology 100
Between be formed with ring cavity 300, the second through-hole 204 is provided on the wall of the body 200.It is set to the first of the ring cavity 300
Sliding part 401, first sliding part 401 have closure part, and the closure part can block the first through hole 104.Described
The ring cavity 300 is divided into the first ring cavity section 301 and the second ring cavity section 302 by one sliding part 401, wherein the first ring cavity section 301
Second through-hole 204 connects.Thermal expansion material can be housed in the second ring cavity section 302, the thermal expansion material can be in temperature
Degree is expanded when reaching predetermined value to increase the pressure in the second ring cavity section 302, so as to push first sliding part
401 slide in the ring cavity 300, so as to release closure of the closure part to the first through hole 104, so that described first
Ring cavity section 301 is connected with the fluid channel 103.
In present embodiment, the ontology 100 for being provided with fluid channel 103 substantially can in a tubular form, and both ends can set tool
Threaded connector is removably connected with the tubing string for realizing and injecting fluid media (medium), and the radial dimension of connector and screw thread can root
Variation is adapted to according to the radial dimension for the tubing string being attached thereto.The tubing string can be lowered into the casing of injection well, the tubing string with
Annular space can be formed between casing.The fluid channel 13 that ontology 100 is opened up along longitudinally can connect with the internal chamber space of tubing string
It is logical, provide circulation passage for the fluid media (medium).First through hole 104 runs through the side wall of ontology 100, can connect fluid channel
103 with the exterior space of ontology 100.
Body 200 substantially with ontology 100 can removably be connect, for example, be threadedly coupled in a tubular form.Body
200 radial dimension is more than the radial dimension of ontology 100, so when body 200 is sheathed on the outside of ontology 100, Ke Yi
Ring cavity 300 is formed between the two.When first through hole 104 is opened, the fluid media (medium) in circulation passage 103 can be through first through hole 104
It enters in ring cavity 300.The second through-hole 204 being set on body 200 can connect the external sky of ring cavity 300 and body 200
Between i.e. the annular space, therefore enter the fluid media (medium) in ring cavity 300 can through the second through-hole 204 enter annular space in and can finally into
Row reservoir corresponding with the annular space.
First sliding part 401 substantially can be in annular shape, the internal diameter size of the first circular sliding part 401 and ontology 100
Outer diameter be adapted.Present embodiment does not define the cross sectional shape of 100 and first sliding part 401 of ontology, as long as
First sliding part 401 can be sheathed on outside ontology 100, such as the section of the two can be circle, or other shapes
Such as polygon (quadrangle, hexagon), when the two cross sectional shape be polygon when, it can be achieved that ontology 100 and first slide
Part 401 is circumferentially fixed, so as to rotate when preventing the first sliding part 401 from being slided in ring cavity 300.
First sliding part 401 is movably set in ring cavity 300, i.e., along the first sliding part of lengthwise extending direction 401
Length dimension is less than the length dimension of ring cavity 300.Between the inner wall of the outer wall and body 200 of first sliding part 401 and ontology 100
It is in sealing contact, specifically it can for example be set on the inner wall of the outer wall of the first sliding part 401, the outer wall of ontology 100 or body 200
One or more sealing rings, so as to which ring cavity 300 can be divided into the first ring cavity section 301 and the second ring cavity by the first sliding part 401
Section 302.First ring cavity section 301 is connected with the second through-hole 204, specifically, the outer wall or set of the first sliding part 401 and ontology 100
It can be formed between 200 inner wall of body and have the gap 61, the gap 61 is connected the first ring cavity section 301 and realized with the second through-hole 204 with this
The connection of the two.Thermal expansion material can be housed in second ring cavity section 302, specifically, can be corresponding in the side wall of body 200 in advance
One or more through-holes are bored on position, thermal expansion material is inserted, then the through-hole is blocked tightly through the one or more through-hole；
Thermal expansion material can be inserted in ring cavity 300 in advance, then first sliding part 401 is packed into ring cavity 300.The thermal expansion
Material can be expanded when temperature reaches predetermined value, such as the expanding material can be solid alcohol, and temperature reaches predetermined
During value, solid alcohol, which can volatilize, generates gas, due to the chamber that the second ring cavity section 302 is sealing, thermal expansion material production
Raw gas increases the pressure in the second ring cavity section 302 and acts on the first sliding part 401, so as to push the first slip
Part 401 moves in ring cavity 300.And closure of the closure part to first through hole 104 is released, make the second ring cavity section 302 and first logical
Hole 104 connects.First ring cavity section 301 is connected with 104 and second through-hole 204 of first through hole, therefore when first through hole 104 is opened
When, the fluid media (medium) in circulation passage 103 can enter through first through hole 104, the first ring cavity section 301 and the second through-hole 204 successively
Fluid media (medium) in tubing string is led into reservoir to compensate the mesh of reservoir energy by annular space, and eventually enter into reservoir so as to reach
's.
As described above, fluid media (medium) can be the steam for carrying certain heat, high-temperature water, high-temperature gas, foam.It uses
When, it is lowered into the casing of injection well after the sliding sleeve 10 of the application embodiment is connect with tubing string, utilizes the heat of fluid media (medium)
Amount heats the thermal expansion material being placed in the second ring cavity section 302, and thermal expansion material expands the second ring cavity of increase
Pressure in section 302 pushes the first sliding part 401 to slide so as to open first through hole 104, and fluid media (medium) is successively through first through hole
104th, the first ring cavity section 301 and the second through-hole 204 enter annular space, and eventually enter into reservoir, so as to reach compensation reservoir energy
Purpose.The sliding sleeve 10 of present embodiment preferably by the use of the heat of fluid media (medium) that must be injected when supplementing reservoir energy as
Its condition opened, note fluid media (medium) are simplified with supplementing the constructing operation of reservoir energy.In addition, relative to pitching sliding sleeve,
Cancel and launch different size of sphere to adapt to the tubing string of different inner diameters when opening pitching sliding sleeve, only need to change connector accordingly
Radial dimension, the flexibility of constructing operation improves；And be difficult to occur as pitching sliding sleeve can not open the problem of, ensure note
Fluid media (medium) constructing operation can smoothly complete.
First sliding part 401 is connect by the shear pin 500 with predetermined shearing strength with the body 200,
Closure part is in the working condition for blocking first through hole 104 at this time.When temperature reaches predetermined value, it is placed in the second ring cavity section
Thermal expansion material in 302, which expands, to be increased the pressure in the second ring cavity section 302 and acts on the first sliding part 401.
When the active force that the pressure in the first ring cavity section 301 gives the first sliding part 401 is more than the shearing strength of shear pin 500,
Shear pin 7 is cut, and the first sliding part 401 moves in ring cavity 300, until closure part releases the closure to first through hole 104,
The second ring cavity section 302 is made to be connected with first through hole 104.
For the sliding sleeve 10 of the application embodiment during the casing of tripping in injection well, down-hole pressure can pass through the second through-hole
204 and first ring cavity section 301 act on first sliding part 401.When down-hole pressure gives the shear pin 500 upwards
Pressure be more than shear pin 500 shearing strength when, then may not yet be lowered into scheduled working position in casing in sliding sleeve 10
When putting, shear pin 500 is cut in advance, so as to can not normally be constructed.The generation of the above situation in order to prevent,
As shown in figure 5, shoulder 203 can be set on the inner wall of body 200, the first sliding part setting limiting section 403.At closure part
When the working condition for blocking first through hole 104, the solid shoulder 203 in the top of limiting section 403.During the casing of tripping in injection well,
Down-hole pressure gives the upward power of the first sliding part 401 and acts on body by the shoulder 203 and limiting section 403 being mutually clamped
On 200, shear pin 500 can not be acted in the process by upward power, it is thus prevented to be cut in advance.
Also referring to Fig. 1 and Fig. 2, in one embodiment of the application, the closure part can include that first can be blocked
Second sliding part 402 of through-hole 104, the second sliding part 402 are set in fluid channel 103；Second sliding part 402 passes through connection
Portion 40 is connect with the first sliding part 401, and connecting portion passes through the first through hole 104；First sliding part 401 is held up solid by connecting portion
Second sliding part slides in fluid channel 103, so that the second sliding part releases the closure to first through hole 104.
Second sliding part 402 substantially can be in annular shape, the outer diameter of the second circular sliding part 402 and ontology 100
Internal diameter size be adapted, when the second sliding part 402 can so slided in the fluid channel 103, the second sliding part 402 can be with
It is preferably bonded with the inner wall of ontology 100, avoids generating gap between the second sliding part 402 and ontology 100, thus prevent
Fluid media (medium) in fluid channel 103 leaks.The cross sectional shape of second sliding part 402 and ontology 100 can refer to above-mentioned
The cross sectional shape of one sliding part 401 and ontology 100, details are not described herein.
As shown in fig. 6, the first sliding part 401 and the second sliding part 402 integrally formed can manufacture, connecting portion 40 is at this time
First sliding part 401 of integrally formed manufacture and a part for the second sliding part 402.Certainly, the first sliding part 401 and second is slided
Moving part 402 or individual mechanism, i.e. the first sliding part 401 and the second sliding part 402 manufacture forming respectively, then by the two
It is attached.Specifically as shown in fig. 7, the second sliding part 402 can detachably be connected by connecting portion 40 and the first sliding part 401
It connects, such as the two can pass through connection and be keyed.First sliding part 401 holds up solid second sliding part 402 by connecting portion 40, so as to
It is driven to be moved in fluid channel 103.
It is fitted into ring cavity 300 for convenience of the first sliding part 401, the body 200 includes the first body being detachably connected
201 and second sheath body portion 202 of portion, the two can be connected through a screw thread；Wherein the first sheath body portion 201 is close to the first ring cavity section
301, second sheath body portion 202 is close to the second ring cavity section 302.After first sliding part 401 is packed into ring cavity 300, by second
Sheath body portion 202 is connected through a screw thread with the first sheath body portion 201.Second through-hole 20 is set in the first sheath body portion 201.This
Outside, the second through-hole 204 can be set to the by direct-injection casing when fluid media (medium) enters through the second through-hole 204 in annular space in order to prevent
The lower part of one sheath body portion 201, the direction for making the second through-hole 201 is substantially identical with the longitudinally of ring cavity 300, such fluid media (medium)
It, will not direct-injection casing when entering annular space through the first ring cavity section 301.
The ontology 100 can include 101 and second body part 102 of the first noumenon portion being detachably connected, wherein described
The first noumenon portion 101 is close to the first ring cavity section 301, and second body part 102 is close to the second ring cavity section 302, and
One through-hole 104, which runs through, to be opened on the side wall in the first noumenon portion 101.In present embodiment, ontology 100 can be spliced by two parts
Composition.Certainly, the application embodiment splices to obtain the quantity of the body section of ontology 100 and is not limited to two, can be according to reality
It needs to choose the quantity of suitable body section, realizes the independent assortment of ontology 100.In addition, 101 and second ontology of the first noumenon portion
It is formed between portion 102 and has the gap 62, when second sliding part 401 blocks first through hole 104, the first noumenon portion 101
End is plugged in the gap 62, so as to ensure plugging effect of second sliding part 401 to first through hole 104, anti-fluid stopping
Body media leaks.
Using present embodiment sliding sleeve 10 carry out beam body media technology basic procedure be：By the cunning of present embodiment
Set 10 is connect with tubing string, and the first sliding part 401 is fixed on by shear pin 500 on body 200, at this time the second sliding part 402
In the working condition for blocking first through hole 104；Tubing string is injected into predetermined work position in casing together with 10 tripping in of sliding sleeve
It puts, makes sliding sleeve 10 corresponding with reservoir；Fluid media (medium) is noted by tubing string, the heat of fluid media (medium) will be to being placed in the second ring cavity section
Thermal expansion material heating in 302；When temperature reaches predetermined value, thermal expansion material expands, and is pressed in the second ring cavity section 302
Increase and act on the first sliding part 401 by force, when the pressure in the second ring cavity section 302 gives the effect of the first sliding part 401
When power is more than the shearing strength of shear pin 500, shear pin 500 is cut, and the first sliding part 401 moves in ring cavity 300,
Second sliding part 402 moves under the drive of the first sliding part 401, and the second sliding part 402 is gradually released to first through hole
104 closure, first through hole 104 are opened, and fluid media (medium) can be successively through first through hole 104, the first ring cavity section 301 and the second through-hole
204 enter in outside, that is, ring cavity of bodies 200, and eventually enter into reservoir, so as to reach by fluid media (medium) lead into reservoir with
Compensate the purpose of reservoir energy.
Also referring to Fig. 3 and Fig. 4, in the application another embodiment, third through-hole is provided on the closure part
304, the third through-hole 304 is connected with the first ring cavity section 301；First sliding part 401 is sliding in the ring cavity 300
When moving to precalculated position, the third through-hole 304 is connected with the first through hole 401.
In present embodiment, the closure part is a part for the first sliding part 401, the first sliding part 401 and ontology 100
Outer wall it is in sealing contact, therefore the closure part of the part as the first sliding part 401 can to first through hole 401 formed seal
It is stifled.Specifically, as shown in figure 3, can be the closure part positioned at the part 4011 of 401 opposite lower section of the first sliding part.It blocks
The third through-hole 304 set in portion is connected by gap 61 with the first ring cavity section 301, when the first sliding part 401 is in ring cavity 300
When sliding into precalculated position, closure part releases blocking and blocking to first through hole 104, and makes third through-hole 304 and first
Through-hole 104 connects, so as to which the second ring cavity section 302 be made to be connected with first through hole 104.Fluid media (medium) in such fluid channel 103
First through hole 104, third through-hole 304, the second ring cavity section 202 and the second through-hole 204 that can be through being sequentially communicated enter body 200
Outside, and reservoir is eventually entered into, achieve the purpose that supplement reservoir energy.
Using present embodiment sliding sleeve 10 carry out beam body media technology basic procedure be：By the cunning of present embodiment
Set 10 is connect with tubing string, and the first sliding part 401 is fixed on by shear pin 500 on body 200, and closure part, which is in, at this time blocks
The working condition of first through hole 104；Tubing string is injected into predetermined work position in casing together with 10 tripping in of sliding sleeve, makes sliding sleeve
10 is corresponding with reservoir；Fluid media (medium) is noted by tubing string, the heat of fluid media (medium) will be swollen to the heat being placed in the second ring cavity section 302
Swollen material heating；When temperature reaches predetermined value, thermal expansion material expands, and pressure increases and makees in the second ring cavity section 302
For the first sliding part 401, when the active force that the pressure in the first ring cavity section 901 gives sliding part 16 is more than shear pin
During 500 shearing strength, shear pin 500 is cut, and the first sliding part 16 moves in ring cavity 300, until third through-hole 304 with
First through hole 104 connects, and fluid media (medium) can be logical through first through hole 104, third through-hole 304, the first ring cavity section 301 and second successively
Hole 204 enters in outside, that is, ring cavity of body 200, and eventually enters into reservoir, guides the fluid media (medium) in tubing string so as to reach
Into reservoir to compensate the purpose of reservoir energy.
Since the application structure is complex, plurality of component such as ontology 100, body 200, ring cavity 300 are by two
Structure assembles or splicing is got；In order to clearly show that the relationship between component and its assembling or splicing construction, present specification
Component and assembling or splicing construction the label of subordinate relation has been subjected to using braces in attached drawing.It is but it should be recognized that attached
The content that includes of braces in icon note is only limitted to the content at its both ends, and the content inside braces is not its subject matter.
Fig. 8 is referred to, present invention also provides a kind of layering injection string using above-mentioned sliding sleeve, the layering ascending pipes
Column includes：The tubing string 23 in precalculated position in the casing 26 of injection well, shape between the tubing string 23 and described sleeve pipe 26 can be lowered into
Into annular space 27, the tubing string 23 has when being lowered into casing 26 close to the first end of the steam injection well well head and far from the note
The second end of vapour well well head.The first packer 29 being connect with the tubing string 23, first packer 29 are located at described first
Between end and the second end.The second packer 25 being connect with the tubing string 23, second packer 25 are located at described the
Between one packer 29 and the second end.Sliding sleeve 10 as described in the embodiment, the sliding sleeve 10 and the tubing string 23
Connection, between first packer 29 and second packer 25.
In present embodiment, tubing string 23 is lowered into the casing of injection well together with the packer and sliding sleeve connected thereon
It, can be first by two packer settings on casing 26 after 26.Can any appropriate model, ruler be chosen according to actual requirement of engineering
Packer that is very little and setting principle.For example, can be the packer set by pressure, or set by gravity mode
Packer, can also be thermal packer.
In present embodiment, the first packer 29 can be the packer that is set by gravity mode, the second packer 25
Can be thermal packer, tubing string 23 is lowered into the casing 26 of injection well together with the packer and sliding sleeve connected thereon
Afterwards, the first packer 29 can be set first, then by 23 note fluid media (medium) of tubing string, fluid media (medium) by tubing string 23 second end into
Enter lower part reservoir；And the first packer 25 can be set under the action of fluid media (medium) heat in the process, sliding sleeve 10 is beaten later
It opens, fluid media (medium) enters top reservoir by sliding sleeve 10, so as to carry out hierarchical supplementary energy.
In another embodiment, the first packer 29 can be the packer that is set by pressure, the second packer 25
Can be thermal packer, at this point it is possible in the second end connecting valve seat 35 of tubing string 23, it can be to the valve by the tubing string 23
Seat 35 launch spheres, the sphere can set on the valve seat 35 to insulate the tubing string 23 and the annular space 27, at this time to
Highly pressurised liquid is suppressed in tubing string 23 sets the first packer 29.It, can be on the tubing string 23 for fluid media (medium) is made to carry out reservoir
Pressure difference sliding sleeve 31 is connected with, the pressure difference sliding sleeve 31 is between first packer 29 and the second end, the pressure difference
Sliding sleeve 31 can be opened to connect the tubing string 23 and the annular space 27 when the pressure in the tubing string 23 reaches predetermined value.It completes
After the setting of first packer 29, continue to suppress highly pressurised liquid, open pressure difference sliding sleeve 31, highly pressurised liquid passes through the pressure difference sliding sleeve
31 are discharged into lower part reservoir.At this point, tubing string 23 does not play pressure, note fluid media (medium) is then carried out, the second packer 25 is set, slides later
Set 10 is opened, and fluid media (medium) enters top reservoir by sliding sleeve 10, so as to carry out hierarchical supplementary energy.
The layering injection string of the application embodiment is illustrated by taking two layers of reservoir as an example, but needs what is illustrated
It is the situation that two layers of reservoir is not limited to scene of the layering injection string of the application embodiment；The application embodiment party
" lower part reservoir " described in formula, " top reservoir ", " the first packer ", " the second packer " are only opposite to be directed toward, between the two
And there is no sequencing relationships.It will thus be appreciated that in Practical Project when fluid media (medium) is injected in layering, " lower part ", " on
Portion " is the relative position of two of which reservoir, and the quantity of reservoir can be three or more；" first ", " second " are packers
Relative numbering, the quantity that the quantity of packer corresponds to reservoir can be three or more.
The foregoing is merely several embodiments of the application, and those skilled in the art is according to application documents disclosure
Various changes or modifications can be carried out without departing from the spirit and scope of the present invention to the embodiment of the present invention.
Claims (7)
1. a kind of sliding sleeve, which is characterized in that including：
The ontology of lengthwise extension, the ontology offers the fluid channel to circulate for fluid along its lengthwise extending direction, through institute
The side wall for stating ontology offers first through hole；
Described external body is sheathed on, ring cavity is formed between the body and the ontology, is set on the wall of the body
It is equipped with the second through-hole；
The first sliding part being set in the ring cavity, first sliding part have closure part, and the closure part can block institute
State first through hole；The ring cavity is divided into the first ring cavity section and the second ring cavity section by first sliding part, wherein：
The first ring cavity section is connected with second through-hole；
The second ring cavity Duan Zhongneng houses thermal expansion material, using the heat of the fluid to being placed in the second ring cavity section
Interior thermal expansion material is heated, and the thermal expansion material can expand to increase described when temperature reaches predetermined value
Pressure in two ring cavity sections, so as to which first sliding part be pushed to be slided in the ring cavity, so as to release the closure part pair
The closure of the first through hole, so that the first ring cavity section is connected with the fluid channel；
The closure part is the second sliding part that can block the first through hole, and second sliding part is set to the fluid and leads to
In road；Second sliding part is connect by connecting portion with first sliding part, and the connecting portion passes through the first through hole；
First sliding part is held up admittedly described second sliding part by the connecting portion and is slided in the fluid channel, so that described
Two sliding parts release the closure to the first through hole；
The ontology includes the first noumenon portion being detachably connected and the second body part；Wherein described the first noumenon portion is close to described
First ring cavity section, for second body part close to the second ring cavity section, the first through hole, which runs through, is opened in the first
On the side wall in body portion；It is formed and had the gap between the first noumenon portion and second body part, second sliding part blocks
During the first through hole, the end of second sliding part is inserted into the gap.
2. sliding sleeve as described in claim 1, it is characterised in that：First sliding part passes through cutting with predetermined shearing strength
Pin is cut to connect with the body.
3. sliding sleeve as claimed in claim 2, it is characterised in that：The inner wall of the body is provided with shoulder, and described first slides
Part is provided with limiting section；When the closure part blocks the first through hole, the shoulder is consolidated on the limiting section top.
4. sliding sleeve as described in claim 1, it is characterised in that：The body includes the first sheath body portion for being detachably connected and the
Two sheath body portions；Wherein described first set body portion is close to the first ring cavity section, and second sheath body portion is close to second ring cavity
Section；Second through-hole is set in first sheath body portion.
5. sliding sleeve as claimed in claim 4, it is characterised in that：Lengthwise of the direction of second through-hole substantially with the ring cavity
Extending direction is identical.
6. a kind of layering injection string, which is characterized in that including：
The tubing string in precalculated position in the casing of injection well can be lowered into, annular space is formed between the tubing string and described sleeve pipe, it is described
Tubing string has when being lowered into casing close to the first end of the injection well well head and the second end of the separate injection well well head；
The first packer being connect with the tubing string, first packer is between the first end and the second end；
The second packer being connect with the tubing string, second packer be located at first packer and the second end it
Between；
Sliding sleeve as described in claim 1 to 5 any one, the sliding sleeve are connect with the tubing string, are located at first envelope
Between device and second packer.
7. tubing string as claimed in claim 6, which is characterized in that including：
The second end is connected with valve seat, can launch sphere to the valve seat by the tubing string, the sphere can be set in institute
It states on valve seat to insulate the tubing string and the annular space；
The pressure difference sliding sleeve being connect with the tubing string, the pressure difference sliding sleeve between first packer and the second end,
The pressure difference sliding sleeve can be opened to connect the tubing string and the annular space when the pressure in the tubing string reaches predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510665392.8A CN105275430B (en) | 2015-10-15 | 2015-10-15 | Sliding sleeve and layering injection string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510665392.8A CN105275430B (en) | 2015-10-15 | 2015-10-15 | Sliding sleeve and layering injection string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105275430A CN105275430A (en) | 2016-01-27 |
| CN105275430B true CN105275430B (en) | 2018-07-10 |
Family
ID=55145162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510665392.8A Active CN105275430B (en) | 2015-10-15 | 2015-10-15 | Sliding sleeve and layering injection string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105275430B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138941A (en) * | 2018-07-26 | 2019-01-04 | 中国石油天然气股份有限公司 | It is layered injection string and layering injected system |
| CN109138942A (en) * | 2018-08-01 | 2019-01-04 | 中国石油天然气股份有限公司 | It is layered injection string and layering injected system |
| CN111425174B (en) * | 2019-01-09 | 2022-02-01 | 中国石油天然气股份有限公司 | Thermal concentric layered electric ignition process pipe column |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201539215U (en) * | 2009-08-28 | 2010-08-04 | 大庆油田有限责任公司 | CO2 displacement concentric double-tube injection technique tubing string |
| CN101806200A (en) * | 2010-03-19 | 2010-08-18 | 中国石油天然气股份有限公司 | Interlaminar multistep control valve used for well completion |
| CN103244091A (en) * | 2013-04-23 | 2013-08-14 | 中国石油天然气股份有限公司 | Reverse steam injection device |
| CN205135550U (en) * | 2015-10-15 | 2016-04-06 | 中国石油天然气股份有限公司 | Sliding sleeve and layering injection string |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7669661B2 (en) * | 2008-06-20 | 2010-03-02 | Baker Hughes Incorporated | Thermally expansive fluid actuator devices for downhole tools and methods of actuating downhole tools using same |
| US9187991B2 (en) * | 2012-03-02 | 2015-11-17 | Halliburton Energy Services, Inc. | Downhole fluid flow control system having pressure sensitive autonomous operation |
-
2015
- 2015-10-15 CN CN201510665392.8A patent/CN105275430B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201539215U (en) * | 2009-08-28 | 2010-08-04 | 大庆油田有限责任公司 | CO2 displacement concentric double-tube injection technique tubing string |
| CN101806200A (en) * | 2010-03-19 | 2010-08-18 | 中国石油天然气股份有限公司 | Interlaminar multistep control valve used for well completion |
| CN103244091A (en) * | 2013-04-23 | 2013-08-14 | 中国石油天然气股份有限公司 | Reverse steam injection device |
| CN205135550U (en) * | 2015-10-15 | 2016-04-06 | 中国石油天然气股份有限公司 | Sliding sleeve and layering injection string |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105275430A (en) | 2016-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105275430B (en) | Sliding sleeve and layering injection string | |
| CN104196464B (en) | Tubing string string and bridging plug set the method made with abrasive perforating connection | |
| CN103352684B (en) | Chemical Physics compound explosion fracturing equipment and manufacture method thereof | |
| CN106555574B (en) | Sand prevention and steam injection integrated device and method | |
| CN103883263A (en) | Aerogel composite heat insulation sleeve | |
| CN104213888B (en) | A kind of thick oil thermal extraction down-hole steam injection string | |
| CN105888639A (en) | Feeding-controlling full-bore sliding sleeve sectional fracturing tube column | |
| CN111980648B (en) | Multistage time-delay steam injection pipe column | |
| CN205135550U (en) | Sliding sleeve and layering injection string | |
| CN111577204B (en) | Underground cascade sliding sleeve system | |
| CN102979482B (en) | A kind of docking diverting means for the outer medicament channel of down-hole oil tube | |
| CN105178906B (en) | Compound action layering vapour drives packer | |
| CN101555778A (en) | External packer of high temperature pipe | |
| CN104131800B (en) | Thermal production well annular space security control instrument | |
| CN111425163B (en) | Switch type double-wall packer and injection-production integrated tubular column thereof | |
| CN109763784A (en) | Divide valve bridge plug hydraulic setting tool and its sets method | |
| CN207686693U (en) | A kind of flow string and device for producing thickened oil | |
| CN106761625A (en) | Underground thermal-arrest temperature-control energy-saving completion integral tubing string and technique | |
| CN206071531U (en) | Fireflood bridging plug | |
| CN212428730U (en) | Shaft float switch | |
| CN108979572A (en) | Combined anti-pollution sand flushing device and method | |
| CN105696995B (en) | The tool of envelope pressure is sprayed for pressure stage differential style and includes its tubing string | |
| CN207229085U (en) | Without throttling dual channel straddle test tubing string | |
| CN203685094U (en) | Layered sealing, separating and repairing device for expansion pipes with multiple clamped sleeves for long-segment casing damage well | |
| CN206458398U (en) | The Recyclable packer of machinery deblocking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |