CN205349309U - Double -deck injection technology tubular column of carbon dioxide alternate water injection displacement of reservoir oil single tube - Google Patents
Double -deck injection technology tubular column of carbon dioxide alternate water injection displacement of reservoir oil single tube Download PDFInfo
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- CN205349309U CN205349309U CN201620002989.4U CN201620002989U CN205349309U CN 205349309 U CN205349309 U CN 205349309U CN 201620002989 U CN201620002989 U CN 201620002989U CN 205349309 U CN205349309 U CN 205349309U
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- slide cartridge
- interior slide
- sleeve
- urceolus
- carbon dioxide
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Abstract
The utility model discloses a double -deck injection technology tubular column of carbon dioxide alternate water injection displacement of reservoir oil single tube, including the sleeve pipe, at the intraductal oil pipe that is equipped with of cover, characterized by: can bore the bridging plug intraductal being equipped with of cover, can bore the bridging plug and be divided into interval and lower interval with the sleeve pipe, it has sealed intubate to peg graft on can boring the bridging plug, termination oil pipe in the sealed intubate, and oil pipe from bottom to top is equipped with the seat sealing ball valve in proper order, throws the formula of dragging for production mandrel and packer, it includes urceolus and interior slide cartridge to throw the formula production mandrel of dragging for, be equipped with the fixed shear pin of the slide cartridge interior slide cartridge that the edge axial was slided in the urceolus in preventing on the urceolus, open on urceolus and interior slide cartridge have on interval gas injection mouth, including still be equipped with the formula of dragging for of throwing blanking plug in the slide cartridge, blanking plug upper portion is equipped with fishing head, interval gas injection mouth under the blanking plug lower part is equipped with, string structure is simple for this technology, construction and injection rate are adjusted conveniently, can realize single upper strata of annotating, singly pour down the layer, it is two -layer with annotating, the one deck can adopt general injection mode continuation work after pouring into the trouble into.
Description
Technical field
This utility model relates to a kind of oil field process pipe string, especially a kind of single-tube double-layer injection technology tubing string used to injecting carbon dioxide in oil field.
Background technology
Carbon dioxide drive oil production process needs utilize tubing string to oil reservoir injecting carbon dioxide, owing to the permeability of each oil reservoir there are differences, adopt layering injection technology accordingly, it would be desirable to preferential.The carbon dioxide of the prior art layering injection technology tubing string CO adopted disclosed in CN201539215U more2Drive concentric double pipe zone separate injection technical string, this process pipe string is formed the dual pathways by inner oil tube and outer oil pipe, owing to inner oil tube to dock with packer after passing outer oil pipe again, difficulty of construction is bigger, further, break down once wherein passage and just to an interval injecting carbon dioxide, or whole tubing string can only be tripped out repairing, not only affect production, and operating expenses is higher.
Utility model content
Utility model to solve the technical problem that: provides a kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string, this process pipe string simple in construction, construction and injection rate are easy to adjust, can realize singly noting upper strata, singly pouring down layer, two-layer with note, after one layer of injection fault, general injection mode can be adopted to work on.
Solve the technical scheme that technical problem is taked: a kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string, including sleeve pipe, oil pipe it is provided with in sleeve pipe, it is provided with in sleeve pipe and can bore bridging plug, bridging plug can be bored sleeve pipe is divided into upper interval and lower layer section, bridging plug is plugged with sealing intubates boring, sealing intubates upper termination oil pipe, oil pipe is sequentially provided with and sets ball valve, retrievable type production mandrel and packer, described retrievable type production mandrel includes the urceolus that two ends are connected with oil pipe, the interior slide cartridge coordinated with outer tube inner wall slipper seal it is provided with in urceolus, urceolus is provided with and prevents the interior slide cartridge fixing shear pin of the interior slide cartridge of sliding vertically in urceolus, urceolus and interior slide cartridge have the upper interval gas injection port of through outer tube wall and interior slide cartridge wall, it is additionally provided with in interior slide cartridge and coordinates with interior slide cartridge inwall slipper seal, make the Throw-salvage type stopper that gas injection port opens or closes, blanking plug top is provided with fishing head, it is provided with lower layer section air injection opening in blanking plug bottom.
As improvement of the present utility model: be provided with a plurality of closure gasket groove on interior slide cartridge outer circumference surface, be embedded with O-ring seal at closure gasket groove.
As further improvement of the utility model: the lower layer section air injection opening outer wall upper and lower two of upper interval gas injection port is provided with a plurality of closure gasket groove, is embedded with O-ring seal at closure gasket groove.
Further improve as of the present utility model: be provided with, in interior slide cartridge upper surface, the conical surface coordinated with ball sealer.
Another kind of improve as of the present utility model: described in set ball valve and include sleeve, the sliding sleeve coordinated with the slipper seal of sleeve lining face it is provided with in sleeve, unidirectional valve ball it is provided with in the valve pocket of sliding sleeve, sleeve is additionally provided with and prevents from sliding over the fixing shear pin of the sliding sleeve slid axially in sleeve, the outer circumference surface of sliding sleeve is provided with closure gasket groove, is embedded with O-ring seal at closure gasket groove.
Beneficial effect: carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present utility model includes sleeve pipe owing to have employed described process pipe string, oil pipe it is provided with in sleeve pipe, it is provided with in sleeve pipe and can bore bridging plug, bridging plug can be bored sleeve pipe is divided into upper interval and lower layer section, bridging plug is plugged with sealing intubates boring, sealing intubates upper termination oil pipe, oil pipe is sequentially provided with and sets ball valve, described in retrievable type production mandrel and packer, retrievable type production mandrel includes the urceolus that two ends are connected with oil pipe, the interior slide cartridge coordinated with outer tube inner wall slipper seal it is provided with in urceolus, urceolus is provided with and prevents the interior slide cartridge fixing shear pin of the interior slide cartridge of sliding vertically in urceolus, urceolus and interior slide cartridge have the upper interval gas injection port of through outer tube wall and interior slide cartridge wall, it is additionally provided with in interior slide cartridge and coordinates with interior slide cartridge inwall slipper seal, make the Throw-salvage type stopper that gas injection port opens or closes, blanking plug top is provided with fishing head, the technical characteristic of lower layer section air injection opening it is provided with in blanking plug bottom, make carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present utility model can pass through pulling production mandrel replacing water nozzle to realize singly noting upper strata, singly pour down layer, two-layer is with note, not only easy switching, and can pass through to change water nozzle adjustment injection rate, once wherein one layer of injection is broken down, can pass through at aboveground throwing ball sealer, the interior slide cartridge of retrievable type production mandrel is destroyed, get through, lower channel, realize general injection, thus having avoided post maintenance activity, save construction cost；On interior slide cartridge outer circumference surface, it is provided with a plurality of closure gasket groove due to have employed, is embedded with the technical characteristic of O-ring seal at closure gasket groove, not only increase the airtight effect of interior slide cartridge and urceolus, and destroy operation without influence on by interior slide cartridge；Owing to the lower layer section air injection opening outer wall that have employed upper and lower two of upper interval gas injection port is provided with a plurality of closure gasket groove, the technical characteristic of O-ring seal it is embedded with at closure gasket groove, also improve the airtight effect of air injection opening and interior slide cartridge accordingly, and without influence on the pulling operation of blanking plug；Owing to have employed the technical characteristic being provided with the conical surface coordinated with ball sealer in interior slide cartridge upper surface, make the ball sealer of production mandrel in input well can be fully contacted, block the upper port of interior slide cartridge with interior slide cartridge upper surface, so that interior slide cartridge is easier to destroy；Described in have employed, set ball valve include sleeve, the sliding sleeve coordinated with the slipper seal of sleeve lining face it is provided with in sleeve, unidirectional valve ball it is provided with in the valve pocket of sliding sleeve, sleeve is additionally provided with and prevents from sliding over the fixing shear pin of the sliding sleeve slid axially in sleeve, the outer circumference surface of sliding sleeve is provided with closure gasket groove, the technical characteristic of O-ring seal it is embedded with at closure gasket groove, not only facilitate setting of packer, and, after packer setting, by continuing to suppress, the sliding sleeve setting in ball valve is destroyed, easily realize the through of upper and lower passage.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present utility model is described in further detail.
Fig. 1 is the structural representation of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present utility model；
Fig. 2 is the structure for amplifying schematic diagram of production mandrel in carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present utility model；
Fig. 3 is the structure for amplifying schematic diagram setting ball valve in carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present utility model.
Detailed description of the invention
As shown in Figure 1, carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present utility model includes sleeve pipe 2, oil pipe 3 it is provided with in sleeve pipe, it is provided with in sleeve pipe and can bore bridging plug 8, can boring bridging plug and sleeve pipe is divided into upper interval and lower layer section, be plugged with sealing intubate 7 boring on bridging plug, described sealing intubates and preferably is from righting type and seals and intubate, sealing intubates upper termination oil pipe, and oil pipe is sequentially provided with and sets ball valve 6, retrievable type production mandrel 5 and packer 1.
As shown in Figure 2, described retrievable type production mandrel includes the urceolus 51 that two ends are connected with oil pipe, the interior slide cartridge 55 coordinated with outer tube inner wall slipper seal it is provided with in urceolus, urceolus is provided with and prevents the interior slide cartridge fixing shear pin 53 of the interior slide cartridge of sliding vertically in urceolus, urceolus and interior slide cartridge have the upper interval gas injection port 56 of through outer tube wall and interior slide cartridge wall, it is additionally provided with in interior slide cartridge and coordinates with interior slide cartridge inwall slipper seal, make the Throw-salvage type stopper 54 that gas injection port opens or closes, blanking plug top is provided with fishing head 52, it is provided with lower layer section air injection opening 58 in blanking plug bottom, the conical surface 50 coordinated with ball sealer it is provided with in interior slide cartridge upper surface, interior slide cartridge outer circumference surface is provided with a plurality of closure gasket groove 59, it is embedded with O-ring seal at closure gasket groove, on upper interval gas injection port, the lower layer section air injection opening outer wall of lower two is provided with a plurality of closure gasket groove 57, it is embedded with O-ring seal at closure gasket groove.
As shown in Figure 3, the described ball valve that sets includes sleeve 61, the sliding sleeve 62 coordinated with the slipper seal of sleeve lining face it is provided with in sleeve, unidirectional valve ball 63 it is provided with in the valve pocket of sliding sleeve, sleeve is additionally provided with and prevents from sliding over the fixing shear pin 64 of the sliding sleeve slid axially in sleeve, the outer circumference surface of sliding sleeve is provided with closure gasket groove 65, is embedded with O-ring seal at closure gasket groove.
Carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string construction method of the present utility model:
1. bridging plug setting tool is connected with boring bridging plug, with arriving design attitude under cable, bridging plug can be bored and set, after setting, bridging plug setting tool be tripped out；
2. salvagable production mandrel is filled with lower layer of water nozzle, is installed on sealing and intubates top together with setting ball valve, directly docks with oil pipe, and top is import packer；
3. during tubing string about 10 meters away from bridging plug be, should slowly transfer tubing string, sealing intubate dock with bridging plug after slowly transfer tubing string, when weight indicator changes, explanation intubates and puts in place down, lift up tubing string certain distance according to well depth, in order to avoid string creep power repeated action is on bridging plug during water filling, affect the sealing effectiveness of bridging plug；
4. suppress from oil pipe, suppress to packer setting pressure, by packer setting；
5. continuing to suppress and destroyed by the sliding sleeve setting in ball valve, sliding sleeve falls in the floral tube of bottom, lower passage is got through；
6. according to each layer injection allocation amount, water nozzle is changed in pulling, can singly note upper strata, singly pours down layer, also can two-layer note together；
7., once meet card, the stopper of production mandrel cannot be pulled out, from aboveground throwing ball sealer, suppresses from oil pipe, is destroyed by slide cartridge in production mandrel, it may be achieved two-layer mixed water injection；
If 8. interior slide cartridge also cannot be destroyed by pitching, interior slide cartridge can be swept, because the fixing shear pin of interior slide cartridge is designed into top, therefore very easily clear away.
Claims (5)
1. a carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string, including sleeve pipe, oil pipe it is provided with in sleeve pipe, it is characterized in that: be provided with in sleeve pipe and can bore bridging plug, bridging plug can be bored sleeve pipe is divided into upper interval and lower layer section, bridging plug is plugged with sealing intubates boring, sealing intubates upper termination oil pipe, oil pipe is sequentially provided with and sets ball valve, retrievable type production mandrel and packer, described retrievable type production mandrel includes the urceolus that two ends are connected with oil pipe, the interior slide cartridge coordinated with outer tube inner wall slipper seal it is provided with in urceolus, urceolus is provided with and prevents the interior slide cartridge fixing shear pin of the interior slide cartridge of sliding vertically in urceolus, urceolus and interior slide cartridge have the upper interval gas injection port of through outer tube wall and interior slide cartridge wall, it is additionally provided with in interior slide cartridge and coordinates with interior slide cartridge inwall slipper seal, make the Throw-salvage type stopper that gas injection port opens or closes, blanking plug top is provided with fishing head, it is provided with lower layer section air injection opening in blanking plug bottom.
2. carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string according to claim 1, is characterized in that: be provided with a plurality of closure gasket groove on interior slide cartridge outer circumference surface, be embedded with O-ring seal at closure gasket groove.
3. carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string according to claim 2, is characterized in that: the lower layer section air injection opening outer wall upper and lower two of upper interval gas injection port is provided with a plurality of closure gasket groove, is embedded with O-ring seal at closure gasket groove.
4. carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string according to claim 3, is characterized in that: be provided with, in interior slide cartridge upper surface, the conical surface coordinated with ball sealer.
5. the carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string according to any one of Claims 1-4, it is characterized in that: described in set ball valve and include sleeve, the sliding sleeve coordinated with the slipper seal of sleeve lining face it is provided with in sleeve, unidirectional valve ball it is provided with in the valve pocket of sliding sleeve, sleeve is additionally provided with and prevents from sliding over the fixing shear pin of the sliding sleeve slid axially in sleeve, the outer circumference surface of sliding sleeve is provided with closure gasket groove, is embedded with O-ring seal at closure gasket groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002989.4U CN205349309U (en) | 2016-01-05 | 2016-01-05 | Double -deck injection technology tubular column of carbon dioxide alternate water injection displacement of reservoir oil single tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002989.4U CN205349309U (en) | 2016-01-05 | 2016-01-05 | Double -deck injection technology tubular column of carbon dioxide alternate water injection displacement of reservoir oil single tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205349309U true CN205349309U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620002989.4U Withdrawn - After Issue CN205349309U (en) | 2016-01-05 | 2016-01-05 | Double -deck injection technology tubular column of carbon dioxide alternate water injection displacement of reservoir oil single tube |
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|---|---|
| CN (1) | CN205349309U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545264A (en) * | 2016-01-05 | 2016-05-04 | 沈阳华威石油机械制造有限公司 | Carbon dioxide wheel injection oil displacement single-tube double-layer injection process tubular column |
| CN107013190A (en) * | 2017-06-03 | 2017-08-04 | 中国石油化工股份有限公司 | Steam flooding well flow string and implementation |
-
2016
- 2016-01-05 CN CN201620002989.4U patent/CN205349309U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545264A (en) * | 2016-01-05 | 2016-05-04 | 沈阳华威石油机械制造有限公司 | Carbon dioxide wheel injection oil displacement single-tube double-layer injection process tubular column |
| CN105545264B (en) * | 2016-01-05 | 2018-02-13 | 沈阳华威石油机械制造有限公司 | A kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string |
| CN107013190A (en) * | 2017-06-03 | 2017-08-04 | 中国石油化工股份有限公司 | Steam flooding well flow string and implementation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160629 Effective date of abandoning: 20180213 |