CN206111126U - Close inserting of independent liquid accuse sliding sleeve formula - Google Patents
Close inserting of independent liquid accuse sliding sleeve formula Download PDFInfo
- Publication number
- CN206111126U CN206111126U CN201621111352.5U CN201621111352U CN206111126U CN 206111126 U CN206111126 U CN 206111126U CN 201621111352 U CN201621111352 U CN 201621111352U CN 206111126 U CN206111126 U CN 206111126U
- Authority
- CN
- China
- Prior art keywords
- well
- flushing
- sliding sleeve
- annular space
- cover
- 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.)
- Expired - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a close inserting of independent liquid accuse sliding sleeve formula, including center tube, overcoat, sliding sleeve, support cover, T type packing assembly, sliding sleeve, support cover all overlap in the center tube outside, sliding sleeve outside cover has the overcoat, support the cover upper end and connect the overcoat through last well -flushing cover, support the cover lower extreme and connect the lower clutch through well -flushing cover down, the plunger assembly is connected to the sliding sleeve upper end, form the spring annular space between sliding sleeve and the center tube and go up well -flushing passageway annular space, it forms well -flushing passageway annular space down to support between cover and the center tube, spring annular space, last well -flushing passageway annular space, lower well -flushing passageway annular space feed through each other, go up the well -flushing cover and all offer radial limbers with lower well -flushing cover, sliding sleeve. Realize the secret and insert ganging up or closing of well -flushing passageway, realize big discharge capacity reverse well washing, realize that each oil reservoir layering is sealed, satisfy the requirement of marine liquid accuse formula selective sand control seperated layer water injection.
Description
Technical field
The utility model is related to marine water injection well sand control completion construction downhole tool, and specifically a kind of independent hydraulic control is slided
Shell type is close to insert.
Background technology
The marine chengdao oilfield main force's oil reservoir Guantao group anisotropism of triumph is strong, stratum interlayer pressure difference shakes out greatly, easily, to layering
The reliability of sand control stratified injection water technology proposes higher technical requirements.Meanwhile, high-inclination directional well is adopted tidal zone oilfield more
Exploitation, platform is narrow and small, and operation maintenance and follow-up test acidifying etc. are costly, to the long-lasting requirement of stratified injection water technology compared with
It is high.With the extensive enforcement of offshore oilfield water injection well sand-preventing process, independent hydraulically-controlled type stratified injection water technology obtains popularization should
With the packer supporting with the water injection string is mainly independent hydraulic control amplificate packer and independent hydraulic control compression packer, plays
The effect of oil-separating layer and huge discharge anti-flushing well.And find that hydraulic control packer is present in application process at the scene and easily cause when going into the well
Damage, packing element deblocking time length, packing element failure by rupture the problems such as, thus, need to develop that a kind of new independent hydraulic control sleeve type is close to be inserted,
Coordinate packoff nipple application in sand control pipe, substitute the conventional batch technique that oil reservoir packing is completed with packer.The instrument both may be used
Full pit shaft anti-flushing well is capable of achieving to realize that layered seal is reliable, is the field of razor clam to improve water injection well interval qualification rate and well washing effect
The Efficient Development in island oil field and continuously steady production provide technical support.
Utility model content
The purpose of this utility model is that a kind of independent hydraulic control sleeve type of offer is close inserts, using the liquid controling pipe line that setting is independent
Suppress passage control sliding sleeve to shift to realize ganging up or closing for close slotting well-flushing passage up and down, realize huge discharge anti-flushing well；Simultaneously
Each oil reservoir layered seal is realized using the packoff nipple interference fit in T-type structure packing and sand control pipe, marine liquid is met
The requirement of control formula selective sand control seperated layer water injection.
In order to reach above-mentioned purpose, the utility model employs following technical scheme, and a kind of independent hydraulic control sleeve type is close to be inserted,
Including central tube, overcoat, sliding sleeve, support set, T-shaped packing assembly, the sliding sleeve, support set are enclosed within central tube outside, described
Sliding sleeve outside is cased with overcoat, and by upper well-flushing set connection overcoat, support set lower end is connected by lower well-flushing set for the support set upper side
Lower contact is connect, the sliding sleeve upper end connects assembly for plunger, spring annular space is formed between the sliding sleeve and central tube and upper well-flushing is logical
Road annular space, forms lower well-flushing passage annular space between the support set and central tube, the spring annular space, upper well-flushing passage annular space,
Lower well-flushing passage annular space is interconnected, and the upper well-flushing set and lower well-flushing set, sliding sleeve open up radial direction limbers, the upper well-flushing
Set inwall arranges upper packing combination, lower packing combination, respectively above and below the radial direction limbers of upper well-flushing set, sliding sleeve
Lower end outer wall temporarily first blocks the radial direction limbers of well-flushing set.
The sliding sleeve outer wall opens up outer chuck, and outer casing inner wall opens up interior chuck, and the outer chuck lower surface is in interior chuck
The distance of end face is consistent with the distance between the radial direction limbers that the radial direction limbers of sliding sleeve to upper well-flushing covers.
The T-shaped packing assembly arranges two sets, is axially abutting well-flushing set and lower well-flushing set, the T-shaped packing respectively
Assembly includes T-shaped packing, pressure ring, wherein T-shaped packing is at least provided with two, and arranges pressure ring between any two.
The ring spring installs in the air spring, and lower spring end is fixed on spring base, and upper end withstands on adapter sleeve lower end, connection
Set lower end is connected to sliding sleeve upper end, connects the plunger of set upper side connecting pole plug assembly.
The assembly for plunger includes plunger, cylinder body, and the cylinder body lower end inner wall connects central tube, and lower end outer wall connection is outer
Set, the centrally disposed plunger cavity of cylinder body, plunger is arranged in plunger cavity, in the embedded adapter sleeve in plunger lower end.
The cylinder body upper end connects top connection, and the top connection opens up individually axial direction oil flow channel, oil flow channel connection
Plunger cavity.
Compared to prior art, the utility model has the advantages that：
The utility model completes oil reservoir packing using close inserting on sand proof well water filling well-completing process with casing nipple cooperation
Effect, instead of the conventional waterflooding Completion Techniques of packer oil-separating layer, it is to avoid packing element failure by rupture causes layering note
The problems such as water fails and well-flushing is obstructed；Meanwhile, suppress downslide on the close slotting sliding sleeve of passage control using independent liquid controling pipe line is arranged
Move, so as to control ganging up and closed mode for well-flushing passage annular space and oil jacket annular space, realize big under T-shaped packing_seal packing state
The effect of discharge capacity anti-flushing well；The instrument had not only realized layered seal reliability but also had realized full pit shaft anti-flushing well, improve marine note
Well interval qualification rate and well washing effect.
Description of the drawings
Fig. 1 is a kind of close slotting structural representation of independent hydraulic control sleeve type of the utility model.
In figure：Top connection 1, cylinder body 2, plunger 3, adapter sleeve 4, spring 5, central tube 6, overcoat 7, spring base 8, sliding sleeve 9, on
Well-flushing set 10, upper packing combination 11, lower packing combination 12, T-shaped packing 13, T-shaped pressure ring 14, T-shaped packing 15, pressure ring 16, support
Set 17, pressure ring 18, T-shaped packing 19, T-shaped pressure ring 20, T-shaped packing 21, lower well-flushing set 22, lower contact 23.
Specific embodiment
Relevant detailed description of the present utility model and technology contents, coordinate description of the drawings as follows, but accompanying drawing only provides ginseng
Examine and purposes of discussion, not for being any limitation as to the utility model.
According to Fig. 1, a kind of independent hydraulic control sleeve type is close to be inserted, including central tube 6, cylinder body 2, sliding sleeve 9, overcoat 7, upper well-flushing set
10th, support set 17, lower well-flushing set 22, T-shaped packing 13,15,19,21, the sliding sleeve 9, support set 17 are enclosed within the outside of central tube 6,
Spring annular space and well-flushing passage annular space are provided between the sliding sleeve 9 and central tube 6, the spring annular space is built-in with spring base 8, bullet
Spring 5, adapter sleeve 4, the sliding sleeve 9 is threadedly coupled with adapter sleeve 4, and the adapter sleeve 4 and plunger 3 are embedded connection, the post
Plug 3 is embedded in the plunger cavity of cylinder body 2, and the lower end of the cylinder body 2 is threadedly coupled with central tube 6, overcoat 7, and the upper end of cylinder body 2 connects with above
1 threaded connection, the upper well-flushing set 10 is connected with overcoat 7, support set 17, the lower well-flushing cover 22 with support set 17, under connect
23 connections, fill area is built into T-shaped packing and combines 11,12 between the support set 17 and upper well-flushing set 10, the support set
Fill area is built into T-shaped packing and combines between 17 and lower well-flushing set 22.
The upper end of the top connection 1 is tubing thread screw thread, and lower end is common button internal thread on the outside of top connection, and lower end inside is provided with
Aprons slot, and with the upper end cushion rubber interference fit of cylinder body 2.
The top connection 1 is provided with the NPT joints and oil flow channel being connected with liquid controling pipe line.
The upper end inner sleeve of the cylinder body 2 in the inner side of top connection 1, the upper end of cylinder body 2 outside for common button screw thread and with top connection 1
Threaded connection, the lower end inside of cylinder body 2 and outside are common button screw thread and are connected with central tube 6, overcoat 7 respectively, described common
Button screw thread rear is equipped with aprons slot and built-in cushion rubber.
With one plunger cavity is drilled with the body of the cylinder body 2, plunger cavity is built into plunger 3.
The top of the cylinder body 2 is provided with gap annular space with the bottom of top connection 1, and the gap annular space is oil flow channel.
The upper end of the plunger 3 is provided with twice aprons slot, and with plunger cavity wall cushion rubber interference fit.
The lower end of the plunger 3 is provided with Baltimore groove, and forms embedded connection with the top of adapter sleeve 4.
The spring 5 is enclosed within the outside of central tube 6, and the upper end of spring 5 withstands on the bottom of adapter sleeve 4, and the lower end of spring 5 withstands on spring base
8 tops；
There is certain compression stress in the spring 5, when assembling to ensure that the upper end of adapter sleeve 4 is withstood in top connection 1.
The middle part ring of upper well-flushing set 10, the lower well-flushing set 22 is provided with uniform limbers.
The upper inner side of well-flushing set 10 is built into packing and combines 11,12 with the fill area between the lower end outside of sliding sleeve 9, the disk
Root combination 11,12 is alternately arranged by polytetrafluoroethylene (PTFE) and packing and is constituted.
The lower end ring of the sliding sleeve 9 is provided with uniform limbers, and the limbers is in before independent liquid controling pipe line is suppressed
The top of packing combination 11, now oil jacket annular space and well-flushing passage annular space are closed.Liquid controling pipe line is suppressed to design load, and sliding sleeve is moved down
Align with upper well-flushing set limbers to sliding sleeve limbers, now oil jacket annular space and well-flushing passage annular space are ganged up.
The overcoat 7, the external screw thread of support set 17 are commonly buckles screw thread, and be respectively provided with glue in the externally threaded front end in every place
Ring recess and built-in cushion rubber.
The T-shaped packing combination is alternately arranged and is constituted by pressure ring, packing, T-shaped pressure ring, packing, and upper T-shaped packing combination
13rd, 14,15,16 with T-shaped packing combine 18,19,20,21 when mounted be subject to certain axial pressing force.
The lower end of the lower contact 23 is tubing thread screw thread, and the upper end of lower contact 23 inner side is provided with twice aprons slot and built-in glue
Circle, upper end outside screw lower section is provided with aprons slot, and covers 22 lower end inside cushion rubber interference fits with lower well-flushing.
Specifically used method of the present utility model：As shown in Figure 1.
When operation field is constructed, first by operation on the sea technological design, enter under correspondence reservoir depth in sleeve pipe first anti-
Sandpipe post (links packoff nipple) between packers at different levels.Then by entering completion tubular column, plug, flushing valve, injection well downhole flow regulator, cunning under design
Shell type it is close it is slotting wait completion tool to be serially connected on oil pipe by design requirement and be lowered into successively in sand control tube cavity, while by a hydraulic control
Pipeline is connected on the close NPT joints plugged of sleeve type, until liquid controling pipe line is connected into pressure gauge and pressure device at well head.
Seal process：Sleeve type is close to be inserted in the packoff nipple of sand control pipe, you can complete the effective of upper and lower oil reservoir
Packing, realizes each oil reservoir seperated layer water injection.
Anti-flushing well process：Liquid controling pipe line pressure is suppressed to design pressure value at the well head of ground, close slotting sliding sleeve is descending
Align with upper well-flushing set limbers to sliding sleeve limbers, realize that oil jacket annular space is ganged up with well-flushing passage annular space.Then from well head set
Pipe closer door injects flushing fluid, and flushing fluid enters well-flushing passage annular space from upper well-flushing set limbers, then by lower well-flushing set limbers stream
Go out, by the flushing valve on tubing string oil pipe is entered, final flushing fluid is discharged from oil pipe.After the completion of well-flushing, by liquid controling pipe line well
Mouth pressure release is moved to 0MPa, on close slotting sliding sleeve and closes well-flushing passage.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the scope of the claims of the present utility model, its
He all should all belong to the scope of the claims of the present utility model with the equivalence changes of patent spirit of the present utility model.
Claims (6)
1. a kind of independent hydraulic control sleeve type is close inserts, it is characterised in that total including central tube, overcoat, sliding sleeve, support set, T-shaped packing
Into the sliding sleeve, support set are enclosed within central tube outside, and the sliding sleeve outside is cased with overcoat, and the support set upper side is by upper
Well-flushing set connection overcoat, support set lower end is by the set connection lower contact of lower well-flushing, and the sliding sleeve upper end connects assembly for plunger, described
Spring annular space and upper well-flushing passage annular space are formed between sliding sleeve and central tube, lower well-flushing is formed between the support set and central tube
Passage annular space, the spring annular space, upper well-flushing passage annular space, lower well-flushing passage annular space are interconnected, the upper well-flushing set and under
Well-flushing set, sliding sleeve open up radial direction limbers, and the upper well-flushing set inwall arranges upper packing combination, lower packing combination, respectively position
Above and below the radial direction limbers of upper well-flushing set, sliding sleeve lower end outer wall temporarily first blocks the radial direction water flowing of well-flushing set
Hole.
2. a kind of independent hydraulic control sleeve type according to claim 1 is close inserts, it is characterised in that the sliding sleeve outer wall opens up outer
Chuck, outer casing inner wall opens up interior chuck, the outer chuck lower surface to the distance of interior chuck upper surface and the radial direction water flowing of sliding sleeve
The distance between the radial direction limbers that hole covers to upper well-flushing is consistent.
3. a kind of independent hydraulic control sleeve type according to claim 1 is close inserts, it is characterised in that the T-shaped packing assembly sets
Two sets are put, well-flushing set and lower well-flushing set is axially being abutted respectively, the T-shaped packing assembly includes T-shaped packing, pressure ring, wherein T
Type packing arranges between any two pressure ring at least provided with two.
4. a kind of independent hydraulic control sleeve type according to claim 1 is close inserts, it is characterised in that the ring spring is installed in the air
Spring, lower spring end is fixed on spring base, and upper end withstands on adapter sleeve lower end, and adapter sleeve lower end is connected to sliding sleeve upper end, connection
Set upper side connects the plunger of assembly for plunger.
5. a kind of independent hydraulic control sleeve type according to claim 1 is close inserts, it is characterised in that the assembly for plunger includes post
Plug, cylinder body, the cylinder body lower end inner wall connects central tube, and lower end outer wall connection overcoat, the centrally disposed plunger cavity of cylinder body, plunger sets
Put in plunger cavity, in the embedded adapter sleeve in plunger lower end.
6. a kind of independent hydraulic control sleeve type according to claim 5 is close inserts, it is characterised in that in the cylinder body upper end connection
Joint, the top connection opens up individually axial direction oil flow channel, oil flow channel connection plunger cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621111352.5U CN206111126U (en) | 2016-10-10 | 2016-10-10 | Close inserting of independent liquid accuse sliding sleeve formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621111352.5U CN206111126U (en) | 2016-10-10 | 2016-10-10 | Close inserting of independent liquid accuse sliding sleeve formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111126U true CN206111126U (en) | 2017-04-19 |
Family
ID=58528500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621111352.5U Expired - Fee Related CN206111126U (en) | 2016-10-10 | 2016-10-10 | Close inserting of independent liquid accuse sliding sleeve formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111126U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173483A (en) * | 2018-11-09 | 2020-05-19 | 中国石油化工股份有限公司 | Time-sharing water injection pipe column and time-sharing water injection method |
| CN111535775A (en) * | 2020-05-21 | 2020-08-14 | 济南鸿泰华丰机械有限公司 | Adjustable constant pressure washable well packer |
| CN112709556A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
| CN114482921A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Electro-hydraulic integrated switch and application thereof |
-
2016
- 2016-10-10 CN CN201621111352.5U patent/CN206111126U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173483A (en) * | 2018-11-09 | 2020-05-19 | 中国石油化工股份有限公司 | Time-sharing water injection pipe column and time-sharing water injection method |
| CN111173483B (en) * | 2018-11-09 | 2022-03-29 | 中国石油化工股份有限公司 | Time-sharing water injection pipe column and time-sharing water injection method |
| CN112709556A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
| CN112709556B (en) * | 2019-10-24 | 2022-12-06 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
| CN111535775A (en) * | 2020-05-21 | 2020-08-14 | 济南鸿泰华丰机械有限公司 | Adjustable constant pressure washable well packer |
| CN111535775B (en) * | 2020-05-21 | 2022-08-30 | 东营市华科石油科技开发有限责任公司 | Adjustable constant pressure washable well packer |
| CN114482921A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Electro-hydraulic integrated switch and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206111126U (en) | Close inserting of independent liquid accuse sliding sleeve formula | |
| CN110107251B (en) | Fracturing filling conversion tool | |
| CN109681159B (en) | Oil field multitube layering water injection string | |
| CN101975041B (en) | Well cementing method for avoiding coal bed and device thereof | |
| CN103277078A (en) | Hydraulic sliding sleeve | |
| CN202731863U (en) | Long-lasting layered water injection tubular column of directional well | |
| CN202578589U (en) | Multifunctional string capable of washing well, logging and layering profile control flooding | |
| CN108301785B (en) | Sand prevention well completion pipe string and method | |
| CN105178908B (en) | The chemical grouting packing device and method of down-hole formation closure | |
| CN104141477A (en) | Concentric three-tube separated layer water injection device and using method thereof | |
| CN206458437U (en) | A kind of bridge-type eccentric separate layer water injection string | |
| CN103541700B (en) | Reverse sealed eccentric injection mandrel | |
| CN108386155B (en) | Double-eccentric integrated packer for water injection well of oil field | |
| CN107916910A (en) | Independent hydraulic control packer pressure valve | |
| CN111577204B (en) | Underground cascade sliding sleeve system | |
| CN204492776U (en) | A kind of on-line control separate zone production flow string | |
| CN107842346A (en) | A kind of oil-water well combined type is intubated internal sealed seating nipple | |
| CN109707327A (en) | A kind of concentric double pipe dispensing Operating Pressure tubing string | |
| CN110242260A (en) | The application method of the layering gas recovery device of the double-deck tubing string | |
| CN210134883U (en) | Injection-production integrated pipe column in same well | |
| CN112177575B (en) | Sand mould-proof hydraulic layer-changing exploitation pipe column and use method thereof | |
| CN211115941U (en) | Injection-production communicating vessel and injection-production-down-production process pipe column | |
| CN105401931B (en) | A kind of sliding sleeve of bushing fracturing integrated pipe column and its fracturing method | |
| CN101173605A (en) | Layered quantitative gas filling device | |
| CN212508228U (en) | Compact gravel packing tool for sand prevention |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20191010 |