CN207004566U - A kind of filling, sand control, steam injection integrated apparatus - Google Patents

A kind of filling, sand control, steam injection integrated apparatus Download PDF

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Publication number
CN207004566U
CN207004566U CN201720759145.9U CN201720759145U CN207004566U CN 207004566 U CN207004566 U CN 207004566U CN 201720759145 U CN201720759145 U CN 201720759145U CN 207004566 U CN207004566 U CN 207004566U
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CN
China
Prior art keywords
filling
integrated apparatus
tube
sealing
sealing unit
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Withdrawn - After Issue
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CN201720759145.9U
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Chinese (zh)
Inventor
梅明霞
张学超
宋清新
李常友
陈伟
王冰
杨军
许霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering Shengli Co
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China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering Shengli Co
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Priority to CN201720759145.9U priority Critical patent/CN207004566U/en
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Abstract

Oil-gas exploration, development technique field are the utility model is related to, more particularly to a kind of filling, sand control, steam injection integrated apparatus.One kind filling provided by the utility model, sand control, steam injection integrated apparatus, including filling inner tube, fill outer tube, the first sealing unit and the second sealing unit;The utility model by by filling, sand control, gas filling device integration design, realize a set of tubing string and can be carried out filling, sand control and steam injection operation, process is not only simplify, reduces construction period and operating cost, and turn avoid the generation of complex situations;Secondly, pass through being equipped with for the first sealing unit and the second sealing unit, efficiently solve the pit shaft sealing problem during filling, sand control, more round steam injections, ensure that can keep sealing for a long time during filling, sand control and more round steam soaks, have lasting, efficient sealing property.

Description

A kind of filling, sand control, steam injection integrated apparatus
Technical field
Oil-gas exploration, development technique field are the utility model is related to, more particularly to a kind of filling, sand control, steam injection integration Device.
Background technology
In oilfield exploitation procedure, viscous crude resource is as a kind of valuable source in oil field development, due to viscosity of crude It is higher, typically exploited by the way of heat extraction by steam injection, to ensure that pit shaft is safe, long-acting and steam injection quality is, it is necessary to effective well Cylinder packing sealing;Simultaneously because most HEAVY OIL RESERVOIRs is loose, it is easy to shake out and prevents, it is necessary to carry out filling before steam injection thermal recovery Sand operation.Therefore, pit shaft packing sealing both needs to meet more than 25MPa high pressure sealings under normal temperature, to realize that high-pressure extrusion fills Sand control;Meet the packing sealing of HTHP steam injection again.
In the prior art, generally use thermal packer carries out pit shaft packing sealing, and thermal packer is hot fluid injection The important composition part of tubing string, its effect is in the oil jacket annular space during heated fluid injection more than oil-separating layer, prevents high temperature The annular space of fluid sleeve pipe and instlated tubular composition, so as to reach the heat loss for reducing pit shaft, and formation protection sleeve pipe Purpose.Terminate in hot-fluid injection, go in oil recovery process, packer still is able to sealing function.Thermal production well insulates at present Device uses the design concept of conventional packer, because steam injecting temperature is high, to ensure that pit shaft safety exists with steam injection quality and realization Under HTHP to pit shaft realize insulate, the underground sealing drum intensity used is higher, have high temperature do not soften, high pressure it is indeformable The characteristics of, it is difficult to because this performance of sealing drum also causes this conventional packer to exist under the limited wellbore conditions of size The problem of compression is set;Normal temperature high voltage seal request during filling anti-sand can not effectively be met, sand card pipe when causing filling anti-sand Post, and cause heavy repair task.
On the other hand, thermal recovery packing tool usually used at present, although thermal production well filling anti-sand technological requirement can be met, But after steam injection, seal failure situation easily occurs, it is impossible to meet more round steam injections and the HTHP seal request of production, this When, packing tool failure, to ensure steam injection safety, it usually needs tripping in bridging plug is inserted with close again, is carried out annular space sealing, was both increased Flow chart adds operating cost again, also, more subjobs influence thermal production well steam injection exploitation effect again, and it is hidden to add safety Suffer from.
Utility model content
For above-mentioned technical problem in the presence of prior art, the utility model proposes a kind of filling, sand control, steam injection one Body makeup is put.It can not only realize the integrated construction of filling, sand control and steam injection, and disclosure satisfy that filling, sand control and Long-term seal during more round steam soaks, has both saved process, in turn ensure that construction effect.
Provided according to the utility model outside a kind of filling, sand control, steam injection integrated apparatus, including filling inner tube, filling Pipe, the first sealing unit and the second sealing unit;
The filling inner tube includes top connection, connecting tube, hollow valve pocket and the washing pipe joint being sequentially connected, in the connection For pipe with being additionally provided with first piston in top connection annular space, the first piston is sleeved on the outside of the connecting tube, wherein, the company It is connected between female connector and hollow valve pocket by pin;The hollow valve pocket inner chamber is additionally provided with matched single current Ball;
The filling outer tube includes being arranged on upper exterior central tube, lower exterior central tube, reversing cover, company outside the filling inner tube Female connector and lower contact, wherein, it is fixedly connected between described upper exterior central tube one end and lower exterior central tube, its other end and described the One piston is connected by anti-rotation pin, and the reversing cover, adapter sleeve and lower contact are sequentially connected fixation, on the reversing cover Trip end is connected with the connecting tube;
First sealing unit include be sleeved on successively the top cover outside the upper exterior central tube, the first sealing drum, on Cone;
Second sealing unit include being sleeved on successively lower cone outside lower exterior central tube, the second sealing drum, spacer ring, Elastomeric element, second piston, thermal expansion component and cylinder sleeve;The second piston, thermal expansion component are located at the cylinder sleeve and lower outer center In annular space between pipe, the cylinder sleeve downstream end is connected with lower center tube;Between the lower cone and upper cone also It is set with slips;The inclined-plane of the conical surface of the upper cone, the conical surface of lower cone respectively with the slips both ends fits.
As it is of the present utility model it is a kind of improve, be additionally provided with inlet in the connecting tube upstream, the inlet with Annular space between the first piston upper surface, top connection is connected;In the connecting tube being in contact with the hollow valve pocket Filling mouth is additionally provided with wall, when the hollow valve pocket moves relative to connecting tube along downstream direction, the filling mouth is opened, institute The inside for stating connecting tube is communicated with the outside.
Further, the first piston outer wall, which is additionally provided with, returns liquid mouth, when first piston with respect to top connection along downstream side To during movement, described to return liquid mouth opening, the first piston inner chamber connects with oil jacket annular space.
As another improvement of the present utility model, also set up in the annular space between the reversing cover and connecting tube relevant Door pocket, the shutdown, which covers, is additionally provided with unidirectional button on the surface being in contact with the reversing cover, the shutdown set relative can only change Unidirectionally moved to set along updrift side.
Preferably, first sealing unit also includes the first regulation ring, and first regulation ring is positioned at the described first sealing Between cylinder and upper cone, first regulation ring can adjust the position of the first sealing drum.
Further, first sealing unit also includes being arranged on the top cover upstream end thereof and is sleeved on described outer Pressure ring outside central tube, the pressure ring downstream end is provided with the first lock ring.
As another improvement of the present utility model, second sealing unit also includes being sleeved on the lower exterior central tube It is outside, between elastomeric element and thermal expansion component and the second regulation ring and lock ring set that abut, in lock ring set and The second lock ring is additionally provided with annular space between lower exterior central tube.
Further, first sealing unit also includes being circumferentially positioned at the top cover both ends and close to the spacing of top cover Ring.
Preferably, the elastomeric element is disc spring, and the unidirectional button is gingival cyst of mucous gland in the newborn button or lock tooth.
Compared with prior art, the utility model has the advantage of first by the way that filling, sand control, gas filling device is integral The design of change, realize a set of tubing string and can be carried out filling, sand control and steam injection operation, not only simplify process, reduce Construction period and operating cost, and turn avoid the generation of complex situations;Secondly, it is close by the first sealing unit and second Being equipped with for envelope unit, efficiently solves the pit shaft sealing problem during filling, sand control, more round steam injections, ensure that It can for a long time keep sealing during filling, sand control and more round steam soaks, there is lasting, efficient sealing property, both The filling anti-sand quality and construction safety of effective guarantee thermal production well, and can ensure the production of thermal production well safety and effectivity.
Brief description of the drawings
Fig. 1 is the utility model filling, sand control, the structural representation of steam injection integrated apparatus.
Fig. 2 is the structural representation of the utility model filling, sand control, steam injection integrated apparatus when filling construction.
Fig. 3 is the structural representation of the utility model filling, sand control, steam injection integrated apparatus when steam injection is constructed.
In figure:1- top connections, 2- first pistons, 3- return liquid mouth, 4- anti-rotation pins, 5- connecting tubes, 6- pressure rings, and 7- first locks Ring, 8- top covers, the sealing drums of 9- first, the regulation rings of 10- first, the upper exterior central tubes of 11-, 12- upper cones, 13- slips, bore under 14- Body, the sealing drums of 15- second, 16- spacer rings, 17- elastomeric elements, the regulation rings of 18- second, 19- lock ring sets, the lock rings of 20- second, 21- Lower exterior central tube, 22- second pistons, 23- thermal expansion components, 24- cylinder sleeves, 25- reversing covers, 26- filling mouths, 27-, which closes the door, to be covered, 28- Unidirectional button, 29- pins, 30- adapter sleeves, 31- lower contacts, the hollow valve pockets of 32-, 33- single current balls, 34- washing pipe joints, 35- closure Ball.
Embodiment
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides ginseng Examine and purposes of discussion, be not used for being any limitation as the utility model.
In this application, term " upstream " refers to the direction towards top connection 1, and " downstream " refers to towards washing pipe joint 34 Direction.
Fig. 1 is filling of the present utility model, sand control, the structural scheme of mechanism of steam injection integrated apparatus.A kind of filling, sand control, Steam injection integrated apparatus, including filling inner tube, filling outer tube, the first sealing unit and the second sealing unit;
Filling inner tube includes top connection 1, connecting tube 5, hollow valve pocket 32 and the washing pipe joint 34 being sequentially connected, in connecting tube 5 in the annular space of top connection 1 with being additionally provided with first piston 2, and the first piston 2 is sleeved on the outside of connecting tube 5, wherein, adapter sleeve 5 It is connected between hollow valve pocket 32 by pin 29;The hollow inner chamber of valve pocket 32 is additionally provided with matched single current ball 33, single current ball 33 is seated in the hollow inner chamber of valve pocket 32, and the single current ball 33 can only allow the direction flowing that upstream is swum under fluid edge; Wherein, connecting tube 5 is placed in inside top connection 1, is connected through a screw thread on the inside of the downstream end of top connection 1 with connecting tube 5.
Filling outer tube include be arranged on filling inner tube outside upper exterior central tube 11, lower exterior central tube 21, reversing cover 25, even Female connector 30 and lower contact 31, wherein, it is fixedly connected between upper one end of exterior central tube 11 and lower exterior central tube 21, its other end and One piston 2 is connected by anti-rotation pin 4, and reversing cover 25, adapter sleeve 30 and lower contact 31 are sequentially connected fixation, reversing cover 25 It is placed in inside cylinder sleeve 24, the upstream end thereof of reversing cover 25 is connected with connecting tube 5;Outer tube integral assembling is filled in filling inner tube It is outside;
First sealing unit includes being sleeved on top cover 8 outside exterior central tube 11, the first sealing drum 9, upper cone successively 12;First sealing drum 9 is located in the groove of top cover 8;
Second sealing unit include being sleeved on successively lower cone 14 outside lower exterior central tube 21, the second sealing drum 15, every Ring 16, elastomeric element 17, second piston 22, thermal expansion component 23 and cylinder sleeve 24;Second piston 22, thermal expansion component 23 are located at cylinder sleeve 24 In annular space between lower exterior central tube 21, the downstream end of cylinder sleeve 24 is connected with lower center tube 21;Lower cone 14 with it is upper Slips 13 is also set between cone 12;The conical surface of upper cone 12, the conical surface of lower cone 14 inclined-plane with the both ends of slips 13 respectively Fit, under external force, upper cone 12 and lower cone 14 can eject slips 13 along the conical surface, pass through the slips on slips 13 Pawl is by tubing string grappling;
In one embodiment, connecting tube 5 is that reverse thread is connected with upper exterior central tube 11.In the upstream of connecting tube 5 also Inlet is provided with, inlet is connected with the annular space between the upper surface of first piston 2, top connection 1;With hollow valve pocket 32 Filling mouth 26 is additionally provided with the inwall of connecting tube 5 being in contact, when hollow valve pocket 32 moves relative to connecting tube 5 along downstream direction When, filling mouth 26 is opened, and now, the inside of connecting tube 5 is communicated with the outside.
The outer wall of first piston 2, which is additionally provided with, returns liquid mouth 3, when first piston 2 moves relative to top connection 1 along downstream direction, Return liquid mouth 3 to open, the inner chamber of first piston 2 connects with oil jacket annular space.
Shutdown set 27 is additionally provided with annular space between reversing cover 25 and connecting tube 5, close the door set 27 and the phase of reversing cover 25 Unidirectional button 28 is additionally provided with the surface of contact, set 27 of closing the door can only unidirectionally move relative to reversing cover 25 along updrift side.One In preferred embodiment, unidirectional button 28 is gingival cyst of mucous gland in the newborn button or lock tooth.
In still another embodiment, the first sealing unit also includes the first regulation ring 10, and first regulation ring 10 is located at Between first sealing drum 9 and upper cone 12, first regulation ring 10 can adjust the position of the first sealing drum 9.
First sealing unit also includes being arranged on the upstream end thereof of top cover 8 and the pressure ring being sleeved on outside gone up exterior central tube 11 6, the downstream end of pressure ring 6 is provided with the first lock ring 7, the first lock ring 7 is mutually nibbled with the upper outer surface of exterior central tube 11 by screw thread Close, so as to ensure that the first lock ring 7 can only be made unidirectionally to move along the direction for above swimming over to downstream.
Second sealing unit also includes being sleeved on outside lower exterior central tube 21, positioned at elastomeric element 17 and thermal expansion component 23 it Between and the second regulation ring 18 and lock ring set 19 that abut, also set in the annular space between lock ring set 19 and lower exterior central tube 21 The second lock ring 20 is equipped with, the second lock ring 20 is intermeshed with the lower upper outer surface of exterior central tube 21 by screw thread, so as to ensure second Make unidirectionally to move in the direction that lock ring 20 can only swim over to upstream under.
In still another embodiment, the first sealing unit also include be circumferentially positioned at the both ends of the first sealing drum 9 and close to The spacing ring of first sealing drum 9.Spacing ring is limiting the first sealing drum 9 along the expansion on tubing string axial direction, it is ensured that first Sealing drum 9 only expands in a lateral direction.
Second sealing unit can also include being circumferentially positioned at the both ends of the second sealing drum 15 and close to the second sealing drum 15 Stopping means.Stopping means is limiting the second sealing drum 15 along the expansion on tubing string axial direction, it is ensured that the second sealing drum 15 Only expand in a lateral direction.
In addition, in another preferred embodiment, elastomeric element 17 is disc spring.First sealing drum 9 is conventional packing element, and material is Common oil resistant rubber, the high pressure sealing of more than 25MPa within 250 DEG C can be realized, the second sealing drum 15 is elevated-temperature seal packing element, can 300 DEG C of high temperature resistant -- 350 DEG C.In first piston 2, second piston 22 with being respectively provided with sealing on respective cooperation faying face Circle, to ensure sealing effectiveness.
Filling, sand control, steam injection integrated apparatus the first sealing drum 9 and the upstream portion of slips 13 in filling anti-sand work progress The slips pawl divided plays a part of sealing and grappling, and during steam injection, the first sealing drum 9 fails, but in the work of steam Under, the distending of the second sealing drum 15, and the slips pawl of the downstream part of slips 13 is opened, it ensure that oil jacket annular space during steam injection Sealing, ensure service life of the packing tool during more round steam soaks.
Below by according to Fig. 1 to 3 come describe using filling, sand control, steam injection integrated apparatus progress operation operational method, Comprise the following steps:
Step 1:Packing tool grappling and set
Ball sealer 35 is put into from well head, pumping liquid pressurization, under hydraulic action, anti-rotation pin 4 is cut, first piston 2 promotion top covers 8 move, and further compress the first sealing drum 9, swollen envelope first sets unit;
Upper cone 12 is promoted under pressure, is opened the upstream portion of slips 13, is realized grappling.
Step 2:Filling anti-sand
Continue to suppress to pin 29 and cut, hollow valve pocket 32 discharges;
Back-up sand is pumped into, back-up sand is filled by connecting tube 5 to stratum;
Load fluid after filling passes through the washing pipe of the bottom of washing pipe joint 34 after the sand screen filtering of packing tool bottom Return at single current ball 33, single current ball 33 is opened on top, by the annular between connecting tube 5 and upper exterior central tube 11, lower exterior central tube 21 Space enters oil jacket annular space;
Backwash is carried out, injects flushing fluid, flushing fluid passes through between connecting tube 5 and upper exterior central tube 11, lower exterior central tube 21 Annular space, the water-carrying groove on hollow valve pocket 32, oil pipe is returned to by connecting tube 5, finally returns to ground.
Step 3:Give up
Tear well head open, rotate tubing string, realize that tubing string is given up;And rise to fill inner tube.
Step 4:Steam injection
Tripping in steam injection string carries out steam soak, the expanded by heating of thermal expansion component 23, promotes second piston 22 to move upwards, presses Contracting elastomeric element 17, further compresses the second sealing drum 15, and swollen envelope second sets unit;
Promote lower cone 14 under pressure simultaneously, further grappling slips 13, realize setting under hot environment With grappling.
Although the utility model is described by reference to preferred embodiment, model of the present utility model is not being departed from In the case of enclosing, various improvement can be carried out to it and part therein can be replaced with equivalent.The utility model is not It is confined to specific embodiment disclosed herein, but all technical schemes including falling within the scope of the appended claims.

Claims (9)

1. a kind of filling, sand control, steam injection integrated apparatus, it is characterised in that:The integrated apparatus is outer including filling inner tube, filling Pipe, the first sealing unit and the second sealing unit;
The filling inner tube includes the top connection, connecting tube, hollow valve pocket and the washing pipe joint that are sequentially connected, the connecting tube with First piston is additionally provided with top connection annular space, the first piston is sleeved on the outside of the connecting tube, wherein, the adapter sleeve It is connected between hollow valve pocket by pin;The hollow valve pocket inner chamber is additionally provided with matched single current ball;
The filling outer tube includes being arranged on upper exterior central tube, lower exterior central tube, reversing cover, adapter sleeve outside the filling inner tube And lower contact, wherein, it is fixedly connected between described upper exterior central tube one end and lower exterior central tube, its other end is lived with described first Plug is connected by anti-rotation pin, and the reversing cover, adapter sleeve and lower contact are sequentially connected fixation, the reversing cover upstream end Portion is connected with the connecting tube;
First sealing unit includes being sleeved on top cover outside the upper exterior central tube, the first sealing drum, upper cone successively;
Second sealing unit includes being sleeved on lower cone outside lower exterior central tube, the second sealing drum, spacer ring, elasticity successively Part, second piston, thermal expansion component and cylinder sleeve;The second piston, thermal expansion component be located at the cylinder sleeve and lower exterior central tube it Between annular space in, the cylinder sleeve downstream end is connected with lower center tube;Also it is set between the lower cone and upper cone There is slips;The inclined-plane of the conical surface of the upper cone, the conical surface of lower cone respectively with the slips both ends fits.
2. integrated apparatus as claimed in claim 1, it is characterised in that:Inlet is additionally provided with the connecting tube upstream, The inlet is connected with the annular space between the first piston upper surface, top connection;Connect with the hollow valve pocket Filling mouth is additionally provided with tactile connection inside pipe wall, it is described when the hollow valve pocket moves relative to connecting tube along downstream direction Fill mouth to open, the inside of the connecting tube is communicated with the outside.
3. integrated apparatus as claimed in claim 2, it is characterised in that:The first piston outer wall, which is additionally provided with, returns liquid mouth, It is described to return liquid mouth opening, the first piston inner chamber and oil jacket ring when first piston moves relative to top connection along downstream direction Kongxiang penetrates.
4. such as the integrated apparatus any one of claim 1-3, it is characterised in that:The reversing cover and connecting tube it Between annular space in be additionally provided with shutdown set, is additionally provided with unidirectional button on the surface that is in contact with the reversing cover of set of closing the door, The shutdown set can only unidirectionally move relative to reversing cover along updrift side.
5. integrated apparatus as claimed in claim 4, it is characterised in that:First sealing unit also includes the first regulation Ring, for first regulation ring between first sealing drum and upper cone, first regulation ring can adjust the first sealing drum Position.
6. integrated apparatus as claimed in claim 5, it is characterised in that:First sealing unit is also described including being arranged on Top cover upstream end thereof and the pressure ring being sleeved on outside the upper exterior central tube, the pressure ring downstream end is provided with the first lock Ring.
7. integrated apparatus as claimed in claim 4, it is characterised in that:Second sealing unit is also described including being sleeved on Outside lower exterior central tube, between elastomeric element and thermal expansion component and the second regulation ring and lock ring set that abut, in institute State in the annular space between lock ring set and lower exterior central tube and be additionally provided with the second lock ring.
8. integrated apparatus as claimed in claim 6, it is characterised in that:First sealing unit also includes being circumferentially positioned at Top cover both ends and close to the spacing ring of top cover.
9. integrated apparatus as claimed in claim 4, it is characterised in that:The elastomeric element is disc spring, and the unidirectional button is Gingival cyst of mucous gland in the newborn button or lock tooth.
CN201720759145.9U 2017-06-27 2017-06-27 A kind of filling, sand control, steam injection integrated apparatus Withdrawn - After Issue CN207004566U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720759145.9U CN207004566U (en) 2017-06-27 2017-06-27 A kind of filling, sand control, steam injection integrated apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720759145.9U CN207004566U (en) 2017-06-27 2017-06-27 A kind of filling, sand control, steam injection integrated apparatus

Publications (1)

Publication Number Publication Date
CN207004566U true CN207004566U (en) 2018-02-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720759145.9U Withdrawn - After Issue CN207004566U (en) 2017-06-27 2017-06-27 A kind of filling, sand control, steam injection integrated apparatus

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139099A (en) * 2017-06-27 2019-01-04 中国石油化工股份有限公司 A kind of filling, sand control, steam injection integrated apparatus and its operational method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139099A (en) * 2017-06-27 2019-01-04 中国石油化工股份有限公司 A kind of filling, sand control, steam injection integrated apparatus and its operational method
CN109139099B (en) * 2017-06-27 2023-08-04 中国石油化工股份有限公司 Filling, sand prevention and steam injection integrated device and operation method thereof

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