CN202531148U - Layered steam injection sliding sleeve - Google Patents
Layered steam injection sliding sleeve Download PDFInfo
- Publication number
- CN202531148U CN202531148U CN2012200253425U CN201220025342U CN202531148U CN 202531148 U CN202531148 U CN 202531148U CN 2012200253425 U CN2012200253425 U CN 2012200253425U CN 201220025342 U CN201220025342 U CN 201220025342U CN 202531148 U CN202531148 U CN 202531148U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- ring
- urceolus
- steam injection
- vapour
- 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
- 238000010793 Steam injection (oil industry) Methods 0.000 title claims abstract description 28
- 125000006850 spacer group Chemical group 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 8
- 230000007812 deficiency Effects 0.000 description 4
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
The layered steam injection sliding sleeve is applied to layered steam injection exploitation of thick oil in an oil field. The lower end of the upper joint is connected with the sliding sleeve outer cylinder; the upper end of the sliding sleeve outer cylinder is connected with a central pipe, the wall of the central pipe is provided with a through hole, and the top of the central pipe is fixed with a guide pressing cap, an opening baffle ring and a steel ball; through holes are uniformly distributed on the inner wall of the sliding sleeve outer cylinder; a sliding sleeve is arranged in the sliding sleeve outer cylinder; an annular space is arranged between the inner wall of the sliding sleeve outer cylinder and the sliding sleeve, and a graphite sealing ring, a steam injection spacer ring and a compression sleeve are arranged in the annular space between the sliding sleeve outer cylinder and the sliding sleeve; the sliding sleeve and the steam injection spacer ring are fixed together through shear pins. The lower end of the sliding sleeve outer cylinder is in threaded connection with a lower joint. The effect is as follows: the device can realize that the thermal recovery pump is put in before steam injection, the layer changing operation is carried out without moving a well head in the steam injection, and the thermal recovery operation can be directly carried out after the steam injection. The whole set of separate injection combined mining process is simple, convenient to operate and high in heat utilization rate of steam.
Description
Technical field
The utility model relates to steam injection technical field under the oil-field thick-oil recovery well, and particularly the down-hole string of layer steam injection is a kind of layer steam injection sliding sleeve.Can divide annotate when changing layer at needs, suppress through oil pipe and cut off the sliding sleeve shear pin, sliding sleeve is descending, closes the bottom and annotates the vapour passage, opens top simultaneously and annotates the vapour passage, reaches the effect that layer is annotated vapour of changing.
Background technology
At present, similar product is annotated vapour sliding sleeve etc. like heavy oil wells, throws core for ground and changes a layer instrument.This instrument need adopt the branch of high temperature side test run pulling different structure to annotate fuse when changing layer operation, annotates need pull branch out after vapour finishes and annotate fuse.And after blowing finishes, need just can descend the pump operation after the decline of wait wellhead temperature, the kill-job, the operation relative complex, the heat utilization efficiency of steam is lower.
Existing have tubing string and divide and annotate that the operation relative complex needs kill job could descend the deficiency of pump with annotating after vapour finishes when changing layer, in addition the lower deficiency of steam heat utilization rate in addition.
The utility model content
The purpose of the utility model is: a kind of layer steam injection sliding sleeve is provided, can divide annotates when changing layer at needs, promote steel ball with push rod earlier and be seated on the sliding sleeve, suppress through oil pipe and cut off the sliding sleeve shear pin, make sliding sleeve descending.Close the bottom and annotate the vapour passage, open top simultaneously and annotate the vapour passage, change layer notes vapour thereby reach.Overcome existing tubing string and divide and annotate operation relative complex when changing layer, annotate and need kill job could descend the deficiency of pump after vapour finishes, overcome the lower deficiency of steam heat utilization rate.
The technical scheme that the utility model adopts is: the layer steam injection sliding sleeve comprises top connection, guiding pressure cap, steel ball, opening baffle ring, central tube, sliding sleeve urceolus, sliding sleeve, graphite-seal ring, shear pin, notes vapour spacer ring, lower contact and compression sleeve; There is internal thread the upper end of top connection, can be connected with steam injection string, it is characterized in that: there is cylinder the lower end of top connection, in the lower end of top connection internal thread is arranged, and the cylinder lower end of top connection connects the sliding sleeve urceolus; There is internal thread the upper end of sliding sleeve urceolus; The upper end of the sliding sleeve urceolus central tube that is threaded, there is through hole the upper end of central tube on the center tube wall in the cylinder of top connection lower end; Be fixed with the guiding pressure cap of an annular in the central tube screw top; There is ring-shaped step upper end at the central tube centre bore, and the opening baffle ring of an annular is arranged on ring-shaped step, and a steel ball is arranged on the top of opening baffle ring; Instantly pressing steel balls, after steel ball strutted the opening baffle ring, steel ball can be through the opening baffle ring and to the whereabouts.The guiding pressure cap is pressed on the steel ball, prevents that steel ball from skidding off.
On the wall of sliding sleeve urceolus, be evenly distributed with through hole; A sliding sleeve is arranged in the sliding sleeve urceolus, and the taper seat ball seat is arranged at the top of sliding sleeve centre bore, and steel ball can be enclosed on the taper seat ball seat at sliding sleeve centre bore top by seat; Between sliding sleeve outer tube inner wall and sliding sleeve, annular space is arranged; Graphite-seal ring is arranged at the top of the annular space between sliding sleeve urceolus and sliding sleeve; The vapour of notes spacer ring is arranged at the bottom of graphite-seal ring; Annotating the vapour spacer ring is to be evenly distributed with through hole on the cylindrical wall, and the through hole of annotating on the vapour spacer ring wall is relative with the through hole on the sliding sleeve outer tube wall; In notes vapour spacer ring lower end another graphite-seal ring is arranged, compression sleeve is arranged at the bottom of another graphite-seal ring, and compression sleeve is threaded with the lower end of sliding sleeve urceolus, and compression sleeve upwards compresses another graphite-seal ring; Be fixed together through shear pin between sliding sleeve and the notes vapour spacer ring.There is external screw thread lower end at the sliding sleeve urceolus, and the lower end screw thread of sliding sleeve urceolus is connected with a lower contact; There is external screw thread the lower end of lower contact, can be connected on the steam injection string.
During assembling layer steam injection sliding sleeve, consult Fig. 1.Earlier sliding sleeve 7 is packed into and annotate in the vapour spacer ring 10, and the shear pin groove in the sliding sleeve 7 is alignd with shear pin 9 holes of annotating vapour spacer ring 10, shear pin 9 is installed to annotates in the vapour spacer ring 10; Successively with graphite-seal ring 8, sliding sleeve 7 with annotate vapour spacer ring 10 connectors, and another graphite-seal ring 8 packs in the sliding sleeve urceolus 6, with compression sleeve 12 and sliding sleeve urceolus 6 through being threaded; With sliding sleeve urceolus 6 and lower contact 11 through being threaded; Through being threaded, successively with opening baffle ring 4, steel ball 3 central tube 5 of packing into, and will lead pressure cap 2 and central tube 5 are through being threaded with central tube 5 and sliding sleeve urceolus 6; At last with top connection 1 and sliding sleeve urceolus 6 through being threaded.Promptly accomplish the assembling of layer steam injection sliding sleeve.
When the layer steam injection sliding sleeve uses, consult Fig. 1.Earlier vapour is annotated in the lower layer position through the notes vapour passage below the layer steam injection sliding sleeve.The bottom oil reservoir will be carried sucker rod downwards with oil pumper after injecting the superheated steam completion, and sucker rod drive insert pump seating nipple and push rod are to lower slider; When the push rod lower ends downward slides into the bottom of insert pump urceolus, continue to transfer sucker rod, make push rod promote the steel ball 3 in the layer steam injection sliding sleeve downwards, steel ball 3 is fallen sliding sleeve 7 tops; Suppress sliding sleeve 7 to lower slider and cut off shear pin 9 from well head, sliding sleeve 7 is to lower slider, and sliding sleeve 7 is seated in the lower contact 11, annotates the vapour passage thereby close the bottom, exposes simultaneously and annotates the side opening that vapour spacer ring 10 is connected with sliding sleeve urceolus 6, opens the notes vapour passage of top oil reservoir.Realize layer notes vapour operation of changing in the steam injection process.
The beneficial effect of the utility model: the utility model layer steam injection sliding sleeve, can realize annotating and be lowered to the thermal recovery pump before the vapour, annotate and need not moving well head in the vapour and change a layer operation, can directly carry out the thermal recovery operation after annotating vapour.Make that a whole set of separated injection and combined recovery technology heat utilization efficiency simple, easy to operate, steam is higher.
Description of drawings
Fig. 1 is the utility model layer steam injection shift sleeve structure generalized section.
Among the figure, the 1-top connection, the 2-pressure cap that leads, the 3-steel ball, 4-opening baffle ring, the 5-central tube, 6-sliding sleeve urceolus, the 7-sliding sleeve, the 8-graphite-seal ring, the 9-shear pin, 10-annotates vapour spacer ring, 11-lower contact, 12-compression sleeve.
The specific embodiment
Embodiment 1: with a layer steam injection sliding sleeve is example, and the utility model is done further explain.
Consult Fig. 1.The utility model layer steam injection sliding sleeve comprises top connection 1, guiding pressure cap 2, steel ball 3, opening baffle ring 4, central tube 5, sliding sleeve urceolus 6, sliding sleeve 7, graphite-seal ring 8, shear pin 9, annotates vapour spacer ring 10, lower contact 11 and compression sleeve 12;
There is API standard oil pipe internal thread the upper end of top connection 1, can be connected with steam injection string.
There is cylinder the lower end of top connection 1, in the lower end of top connection 1 internal thread is arranged, and the cylinder lower end of top connection 1 connects sliding sleeve urceolus 6; There is internal thread the upper end of sliding sleeve urceolus 6, the upper end of sliding sleeve urceolus 6 central tube 5 that is threaded, and the upper end of central tube 5 is evenly distributed with four through holes on central tube 5 walls in the cylinder of top connection 1 lower end, and the steam of injection can get in the central tubes 5 through four through holes.Be fixed with the guiding pressure cap 2 of an annular in central tube 5 screw top, ring-shaped step arranged, the opening baffle ring 4 of an annular is arranged, opening baffle ring 4 internal diameter 32mm, external diameter 42mm on ring-shaped step in the upper end of central tube 5 centre bores.The steel ball 3 that a 38.1mm is arranged on the top of opening baffle ring 4; Guiding pressure cap 2 is pressed on the steel ball 3, prevents that steel ball breaks away from opening baffle ring 4.
On the wall of sliding sleeve urceolus 6, be evenly distributed with four through holes; A sliding sleeve 7 is arranged in sliding sleeve urceolus 6, and the taper seat ball seat is arranged at the top of sliding sleeve 7 centre bores, and the diameter of sliding sleeve 7 centre bores is 28mm.Between sliding sleeve urceolus 6 inwalls and sliding sleeve 7, annular space is arranged; A graphite-seal ring 8 is arranged at the top of the annular space between sliding sleeve urceolus 6 and sliding sleeve 7; The vapour of notes spacer ring 10 is arranged at the bottom of graphite-seal ring 8; Annotate vapour spacer ring 10 and be evenly distributed with four through holes on the cylindrical wall, four through holes annotating on vapour spacer ring 10 walls are relative with four through holes on sliding sleeve urceolus 6 walls; In notes vapour spacer ring 10 lower ends another graphite-seal ring 8 is arranged, compression sleeve 12 is arranged at the bottom of another graphite-seal ring 8, and compression sleeve 12 is threaded with the lower end of sliding sleeve urceolus 6, and upwards compresses another graphite-seal ring 8.Be fixed together through equally distributed four shear pins 9 between sliding sleeve 7 and the notes vapour spacer ring 10.There is external screw thread lower end at sliding sleeve urceolus 6, and the lower end screw thread of sliding sleeve urceolus 6 is connected with a lower contact 11; There is API standard oil tube external thread the lower end of lower contact 11.
Claims (1)
1. a layer steam injection sliding sleeve comprises top connection (1), guiding pressure cap (2), steel ball (3), opening baffle ring (4), central tube (5), sliding sleeve urceolus (6), sliding sleeve (7), graphite-seal ring (8), shear pin (9), annotates vapour spacer ring (10), lower contact (11) and compression sleeve (12); There is internal thread the upper end of top connection (1), it is characterized in that: there is cylinder the lower end of top connection (1), in the lower end of top connection (1) internal thread is arranged, and the cylinder lower end of top connection (1) connects sliding sleeve urceolus (6); There is internal thread the upper end of sliding sleeve urceolus (6); The upper end of sliding sleeve urceolus (6) central tube (5) that is threaded, there is through hole the upper end of central tube (5) on central tube (5) wall in the cylinder of top connection (1) lower end; Be fixed with the guiding pressure cap (2) of an annular in central tube (5) screw top; There is ring-shaped step upper end at central tube (5) centre bore, and the opening baffle ring (4) of an annular is arranged on ring-shaped step, on the top of opening baffle ring (4) steel ball (3) is arranged; Guiding pressure cap (2) is pressed on the steel ball (3);
On the wall of sliding sleeve urceolus (6), be evenly distributed with through hole; A sliding sleeve (7) is arranged in sliding sleeve urceolus (6), and the taper seat ball seat is arranged at the top of sliding sleeve (7) centre bore; Between sliding sleeve urceolus (6) inwall and sliding sleeve (7), annular space is arranged; Graphite-seal ring (8) is arranged at the top of the annular space between sliding sleeve urceolus (6) and sliding sleeve (7); The vapour spacer ring (10) of notes is arranged at the bottom of graphite-seal ring (8); Annotate vapour spacer ring (10) for being evenly distributed with through hole on the cylindrical wall, the through hole of annotating on vapour spacer ring (10) wall is relative with the through hole on sliding sleeve urceolus (6) wall; In notes vapour spacer ring (10) lower end another graphite-seal ring (8) is arranged, compression sleeve (12) is arranged at the bottom of another graphite-seal ring (8), and compression sleeve (12) is threaded with the lower end of sliding sleeve urceolus (6); Be fixed together through shear pin (9) between sliding sleeve (7) and the notes vapour spacer rings (10); There is external screw thread lower end at sliding sleeve urceolus (6), and the lower end screw thread of sliding sleeve urceolus (6) is connected with a lower contact (11); There is external screw thread the lower end of lower contact (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200253425U CN202531148U (en) | 2012-01-19 | 2012-01-19 | Layered steam injection sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200253425U CN202531148U (en) | 2012-01-19 | 2012-01-19 | Layered steam injection sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531148U true CN202531148U (en) | 2012-11-14 |
Family
ID=47132338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200253425U Expired - Fee Related CN202531148U (en) | 2012-01-19 | 2012-01-19 | Layered steam injection sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2012
- 2012-01-19 CN CN2012200253425U patent/CN202531148U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103244091B (en) * | 2013-04-23 | 2015-07-08 | 中国石油天然气股份有限公司 | Reverse steam injection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102562004A (en) | Separate injection combined production method for one-trip pipe column of heavy oil thermal production well | |
| CN201050318Y (en) | Loose ground closed core-picking tool | |
| CN102400661B (en) | Balance valve for multi-layer fracturing operation of continuous oil pipe | |
| CN204851170U (en) | Oil gas well well cementation staged fracturing bowling sliding sleeve | |
| CN104989316A (en) | Integrated horizontal well water finding and blocking pipe column | |
| CN201620854U (en) | Double-element split type plunger gas lift tool | |
| CN102493777B (en) | Hydraulic release blanking plug | |
| CN202152663U (en) | Bidirectional floating type setting device | |
| CN201620785U (en) | Pressure-controlled hydraulic pushing tool | |
| CN202745837U (en) | Natural energy circulation gas lift well completion pipe string | |
| CN202531148U (en) | Layered steam injection sliding sleeve | |
| CN201021612Y (en) | Separation device for dense SAGD steam driven gas injection well | |
| CN201560744U (en) | Internal ball injection device | |
| CN201778686U (en) | Oil-mixing and gas-preventing integrated lifting process pipe column | |
| CN201176922Y (en) | Bridge type separated oil production pump | |
| CN202360058U (en) | Fishable oil pipe plug | |
| CN101956541B (en) | Underground well switching device for coal bed gas test direct-reading storage | |
| CN201106441Y (en) | Three-section separate injection string for water injection of horizontal well | |
| CN103835675A (en) | Long-rubber-sleeve compression type open hole packer | |
| CN103775046B (en) | Thick oil separate injection and joint production eccentric feedback pump and process method | |
| CN207813557U (en) | A kind of water plugging of horizontal well tubing string | |
| CN201554439U (en) | Steam dispenser | |
| CN201857934U (en) | Special sealing intubation tube for sealing packer | |
| CN206816482U (en) | Multitube hydraulic oil producing pump | |
| CN105464615B (en) | Deepwater wells parallel double tube packer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20210119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |