CN205243483U - Special profile control ware - Google Patents
Special profile control ware Download PDFInfo
- Publication number
- CN205243483U CN205243483U CN201521087401.1U CN201521087401U CN205243483U CN 205243483 U CN205243483 U CN 205243483U CN 201521087401 U CN201521087401 U CN 201521087401U CN 205243483 U CN205243483 U CN 205243483U
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- China
- Prior art keywords
- piston
- profile control
- main body
- lockwheel
- valve ball
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- Withdrawn - After Issue
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Abstract
The utility model relates to a special profile control ware, it includes overcoat (1), overcoat (1) is including adapter sleeve (12), be equipped with piston (14) in adapter sleeve (12), adapter sleeve (12) middle part is equipped with profile control hole (16), be equipped with profile control hole two (17) on the lateral wall of piston (14), be equipped with core (2) in overcoat (1), core (2) are including dragging for pole (21), cam assembly (3), main part (22), valve ball (23), valve ball pressure spring (24) and lock wheel assembly (4), be equipped with profile control hole three (30) on the lateral wall of main part (22), assemble in overcoat (1) from the one end of overcoat (1) top connection (11) core (2). Use after its water injection more that the tube replacement post can carry out the profile control, can save manpower and material resources greatly, reduce the operating cost, save the activity duration, can not lead to the slitter loss of profile control liquid, can not cause profile control liquid deposit and lead to the overhaul of well unnecessary in the tubular column to can realize the individual layer profile control.
Description
Technical field
The utility model relates to petroleum tool, is specifically related to a kind of oil field water well profile control tubing string.
Background technology
When oil field water well carries out water injection profile adjustment, need to change water injection string is profile control tubing string, can expend a large amount of man power and materials, is unfavorable for reducing operating cost and saves the activity duration. If while not changing tubing string injection well downhole flow regulator replacement profile control device profile control,, because profile control solution slitter loss is very large, easily cause profile control solution to deposit in tubing string, cause the unnecessary overhaul of well, and can not realize individual layer profile control.
Summary of the invention
The purpose of this utility model is to provide need not be changed tubing string after a kind of water filling and can carry out profile control, can save man power and material, reduce operating cost, save the activity duration, can not cause profile control solution slitter loss, can not cause profile control solution to deposit in tubing string and cause the unnecessary overhaul of well, can realize the special profile control device of individual layer profile control.
Technical solution of the present utility model is: it comprises overcoat, overcoat includes top connection, adapter sleeve and lower contact, the lower end of top connection is connected with the top axial of adapter sleeve by screw thread, the lower end of adapter sleeve is connected with the top axial of lower contact by screw thread, in adapter sleeve, be provided with piston and piston stage clip, piston bush is contained in adapter sleeve, the inwall axial sliding fit of the outer wall of piston and adapter sleeve, the below that piston stage clip is positioned at piston is arranged on adapter sleeve, match with the lower end of piston in the upper end of piston stage clip, match with the upper surface of lower contact in lower end, the be slidably matched sidewall of position of adapter sleeve middle part and piston is provided with a profile control hole one being communicated with inside and outside adapter sleeve, the sidewall of profile control hole one top piston is provided with the profile control hole two inside and outside the connection piston corresponding with profile control hole one, in overcoat, be provided with core body, core body includes and drags for bar, Cam set assembly, main body, valve ball, valve ball stage clip, two locating detents, locating detent stage clip, lock tube, lock tube stage clip and lockwheel assembly, drag for the lower end of bar and the upper end of main body is connected, Cam set assembly is positioned at the below of dragging for bar, Cam set assembly is by two cams, camshaft and cam torsion spring form, camshaft is radially arranged in main body along main body, two cams and cam torsion spring are arranged on respectively on camshaft, match respectively with two cams in the two ends of cam torsion spring, projection on two cams matches with the cam path of piston inner wall opposite side respectively, valve ball and valve ball stage clip are positioned at Cam set assembly below and are arranged on the centre bore of main body one on the other successively, valve ball upwards matches with the valve ball seat being located in main center hole, the upper end of valve ball stage clip is pressed on valve ball, lower end is pressed on main body inner face, the sidewall of valve ball below main body is provided with the profile control hole three corresponding with profile control hole two on piston, two locating detents are positioned at valve ball stage clip below, upper end is hinged on respectively left and right in main body and matches, locating detent stage clip is arranged on two ends between two locating detents and is pressed in respectively on locating detent, lock tube is positioned at locating detent lower shaft to being slidably mounted on main center hole, the lower end of blocking two locating detents suitable for reading of lock tube makes the compression of locating detent stage clip, in main body, be radially provided with lock tube sidewall on the lock tube axle that is slidably matched of cylindrical void, the below that lock tube stage clip is positioned at lock tube axle is arranged on lock tube, the upper end of lock tube stage clip is pressed on lock tube axle, lower end is pressed on the inner face of lock tube, lockwheel assembly is positioned at lock tube below, lockwheel assembly is by lockwheel, lockwheel torsion spring, lockwheel pawl and lockwheel pawl torsion spring form, lockwheel is hinged in main body by the lockwheel axle being radially arranged in main body, outer rim matches with lock tube lower surface, lockwheel torsion spring set is contained on lockwheel axle, match with main body and lockwheel respectively in two ends, one end of lockwheel pawl is hinged in lockwheel by lockwheel pawl axle, lockwheel pawl torsion spring set is contained on lockwheel pawl axle, match with lockwheel and lockwheel pawl respectively in two ends, core body is assemblied in overcoat from one end of overcoat top connection, core body main body outer wall and piston inner wall axial sliding fit.
Technique effect of the present utility model is: use and need not change tubing string after its water filling and can carry out profile control, can greatly save man power and material, reduce operating cost, save the activity duration, can not cause profile control solution slitter loss, can not cause profile control solution to deposit in tubing string and cause the unnecessary overhaul of well, and can realize individual layer profile control. It is simple in structure, operation and easy to use, and result of use is reliable, is connected to the top that is positioned at injection well downhole flow regulator on water injection string when use. While needing profile control, core body is put into overcoat from well head, just can be carried out the profile control operation of specific interval. After profile control operation completes, only need pull core body out ground, tubing string can carry out normal water filling operation.
Advantage:
1, the use of this profile control device has realized the specific individual layer profile control of well, the history of the general profile control that is through with, filled up can not individual layer profile control technology blank;
2, easy and simple to handle, practical, save the waste of changing a large amount of man power and materials that tubing string causes;
3, practical, solve profile control solution left over deposition problems in tubing string, avoid workover treatment unnecessary after profile control.
Brief description of the drawings
Fig. 1 is the axial sectional structure chart of the utility model embodiment.
Detailed description of the invention
As shown in Figure 1, it comprises overcoat 1, overcoat 1 includes top connection 11, adapter sleeve 12 and lower contact 13, the lower end of top connection 11 is connected with the top axial of adapter sleeve 12 by screw thread, the lower end of adapter sleeve 12 is connected with the top axial of lower contact 13 by screw thread, in adapter sleeve 12, be provided with piston 14 and piston stage clip 15, piston 14 is sleeved in adapter sleeve 12, the inwall axial sliding fit of the outer wall of piston 14 and adapter sleeve 12, the below that piston stage clip 15 is positioned at piston 14 is arranged on adapter sleeve 12, match with the lower end of piston 14 in the upper end of piston stage clip 15, match with the upper surface of lower contact 13 in lower end, the be slidably matched sidewall of position of adapter sleeve 12 middle parts and piston 14 is provided with one and is communicated with the inside and outside profile control hole 1 of adapter sleeve 12, the sidewall of profile control hole one 16 top pistons 14 is provided with the inside and outside profile control hole 2 17 of the connection piston corresponding with profile control hole 1 14, in overcoat 1, be provided with core body 2, core body 2 includes and drags for bar 21, Cam set assembly 3, main body 22, valve ball 23, valve ball stage clip 24, two locating detents 25, locating detent stage clip 26, lock tube 27, lock tube stage clip 28 and lockwheel assembly 4, the lower end of dragging for bar 21 is connected with the upper end of main body 22, Cam set assembly 3 is positioned at the below of dragging for bar 21, Cam set assembly 3 is by two cams 31, camshaft 32 and cam torsion spring 33 form, camshaft 32 is radially arranged in main body 22 along main body 22, two cams 31 and cam torsion spring 33 are arranged on respectively on camshaft 32, match respectively with two cams 31 in the two ends of cam torsion spring 33, projection on two cams 31 matches with the cam path of piston 14 inwall opposite sides respectively, valve ball 23 and valve ball stage clip 24 are positioned at Cam set assembly 3 belows and are arranged on the centre bore of main body 22 one on the other successively, valve ball 23 upwards matches with the valve ball seat 29 being located in main body 22 centre bores, the upper end of valve ball stage clip 24 is pressed on valve ball 23, lower end is pressed on main body 22 inner faces, the sidewall of valve ball 23 below main bodys 22 is provided with the profile control hole three 30 corresponding with profile control hole 2 17 on piston 14, two locating detents 25 are positioned at valve ball stage clip 24 belows, upper end is hinged on respectively left and right in main body 22 and matches, locating detent stage clip 26 is arranged on two ends between two locating detents 25 and is pressed in respectively on locating detent 25, lock tube 27 is positioned at locating detent 25 lower shaft to being slidably mounted on main body 22 centre bores, the lower end of blocking two locating detents 25 suitable for reading of lock tube 27 is compressed locating detent stage clip 26, in main body 22, be radially provided with lock tube 27 sidewalls on the lock tube axle 271 that is slidably matched of cylindrical void, the below that lock tube stage clip 28 is positioned at lock tube axle 271 is arranged on lock tube 27, the upper end of lock tube stage clip 28 is pressed on lock tube axle 271, lower end is pressed on the inner face of lock tube 27, lockwheel assembly 4 is positioned at lock tube 27 belows, lockwheel assembly 4 is by lockwheel 41, lockwheel torsion spring, lockwheel pawl 42 and lockwheel pawl torsion spring form, lockwheel 41 is hinged in main body 22 by the lockwheel axle 43 being radially arranged in main body 22, outer rim matches with lock tube 27 lower surfaces, lockwheel torsion spring set is contained on lockwheel axle 43, match with main body 22 and lockwheel 41 respectively in two ends, one end of lockwheel pawl 42 is hinged in lockwheel 41 by lockwheel pawl axle 44, lockwheel pawl torsion spring set is contained on lockwheel pawl axle 44, match with lockwheel 41 and lockwheel pawl 42 respectively in two ends, core body 2 is assemblied in overcoat 1 from one end of overcoat 1 top connection 11, core body 2 main body 22 outer walls and piston 14 inwall axial sliding fits.
Piston 14 is by piston upper body 18, piston lower body 19 and support 20 form, the suitable for reading of piston upper body 18 is up big and down small tubaeform core guide mouth 10, cam path is located on piston upper body 18 inwalls of core guide mouth 10 belows, profile control hole 2 17 is located on the sidewall of piston upper body 18, the upper end of piston lower body 19 is axially connected with the lower end of piston upper body 18 by external screw thread, the upper end of support 20 is axially connected with the lower end of piston lower body 19 by internal thread, match with the lower surface of support 20 in the upper end of piston stage clip 15, the inwall of support 20 is provided with the locating detent groove 101 matching with locating detent 25, adapter sleeve 12 is provided with radially and is arranged on the anti-turn screw 40 on adapter sleeve 12 by screw thread, position corresponding with anti-turn screw 40 on the outer wall of piston lower body 19 is axially arranged with the anti-rotation chute 102 being slidably matched towards the end of piston lower body 19 with anti-turn screw 40 along piston lower body 19. the outer wall of support 20 is provided with jump-ring slot one, and on adapter sleeve 12 inwalls, the position corresponding with jump-ring slot one is provided with jump-ring slot two, and the jump ring cover 103 in can retraction jump-ring slot one is installed in jump-ring slot one and jump-ring slot two after support 20 axially loadeds. on the piston upper body 18 of 2 17 above and belows, profile control hole and piston lower body 19 outer walls, be respectively equipped with seal groove, the sealing ring coordinating with adapter sleeve 12 inwall slipper seals is installed in seal groove.
Main body 22 is by plug screw 221, upper main body 222, intermediate 223, lower main body 224 and guide head 225 form, plug screw 221 is sleeved on the upper end of dragging on bar 21 and being connected to upper main body 222 by external screw thread, plug screw 221 and dragging between bar 21 is provided with by threading path to being arranged on plug screw 221, end and the shear pin 226 that drags for bar 21 and match, the lower end that drags for bar 21 is alternate with plug screw 221 separates a upward sliding distance, drag for bar 21 lower end bottoms and be provided with limited block 211, limited block 211 matches and prevents that cam 31 from rotating in piston 14 with the arc-shaped limit groove 311 on two cams 31, Cam set assembly 3 is arranged in upper main body 222 by camshaft 32, the lower end of upper main body 222 is connected with the top axial of intermediate 223 by external screw thread, in intermediate 223 centre bores, be provided with the valve ball seat 29 that is positioned at main body 222 belows, the below that valve ball 23 and valve ball stage clip 24 lay respectively at valve ball seat 29 is arranged in intermediate 223 centre bores, profile control hole 3 30 is positioned at valve ball 23 belows and is located on the sidewall of intermediate 223 and with intermediate 223 centre bores and is connected, the lower end of intermediate 223 is connected with the top axial of lower main body 224 by internal thread, the lower end of valve ball stage clip 24 is pressed on the upper surface of lower main body 224, two locating detents 25, lock tube 27, lock tube axle 271 and lockwheel assembly 4 are arranged on respectively in lower main body 224, guide head 225 is arranged on lower main body 224 bottoms by external screw thread. on intermediate 223 outer walls of 3 30 above and belows, profile control hole, be respectively equipped with seal groove, in seal groove, be provided with the sealing ring coordinating with the inwall slipper seal of piston 14.
Operation principle:
1, overcoat 1 is connected on tubing string with under tubing string lower going-into-well, now the profile control hole 2 17 on the pressure-acting lower piston 14 of piston stage clip 15 be positioned at profile control hole 1 on adapter sleeve 12 above be staggered and be not connected with profile control hole 1, the 103 pairs of pistons 14 of jump ring cover between adapter sleeve 12 and support 20 have position-limiting action.
2, while needing profile control, core body 2 is sent into down-hole by steel wire, in the time that core body 2 arrives the interior suitable position of overcoat 1, on carry core body 2, lockwheel pawl 42 is scraped on overcoat 1 inwall, lockwheel 41 is rotated under the effect of lockwheel pawl 42, the position-limiting action of lock tube 27 is removed, lock tube 27 is down sliding under the effect of lock tube stage clip 28, lock tube 27 position-limiting action to two locating detents 25 suitable for reading is removed, two locating detents 25 are opened outside lower end under the effect of locating detent stage clip 26, are stuck in the locating detent groove 101 on support 20. Meanwhile, the projection on two cams 31 is stuck in the cam path on piston upper body 18, and under the effect of limited block 211, the projection of cam 31 can not be overturn downwards, can not uply can not descending realization locate again thereby core body 2 is fixed in piston 14.
3, core body 2 fixes behind position in overcoat 1, squeezes into profile control solution from aboveground to down-hole, and the pressure of profile control solution overlaps in the jump-ring slot one of 103 interior retraction supports 20 jump ring, and piston 14 is descending with core body 2. In the time that piston 14 goes downwards to profile control hole 1 with 2 17 conducting of profile control hole, profile control solution can compress valve ball stage clip 24 by valve ball 23, and profile control solution can inject stratum by the profile control hole 2 17 on profile control hole 3 30, piston upper body 18 on intermediate 223 and the profile control hole on adapter sleeve 12 1 and realize profile control. In the time that profile control process finishes, stop to down-hole injection profile liquid, piston 14 is exercised the not conducting of again staggering of profile control hole 1 and profile control hole 2 17 on can be under the rebound effect of piston stage clip 15. Make profile control hole 1 and profile control hole 2 17 continue conducting in order to prevent that piston 14 is stuck, can be by bailing bar 21 from the aboveground steel wire being lowered to, because cam 31 is blocked by piston 14, drag for bar 21 and can drive piston 14 to force to rise, just can guarantee that profile control hole 1 and profile control hole 2 17 stagger completely and make profile control solution passage disconnect not conducting.
4, need to take out core body 2 time, by bailing bar 21 from the aboveground steel wire being lowered to is again afterburning, plug screw 221 and the shear pin 226 dragging between bar 21 can be cut off, dragging for bar 21 can be in distance of the interior upward sliding of plug screw 221, now dragging for limited block 221 on 21, bar and the arc-shaped limit groove 311 on two cams 31 throws off, the position-limiting action of two cams 31 is removed, on continuing, steel wire lifts under the effect of power, projection on two cams 31 can be overturn downwards under the cam path effect on piston upper body 18, just can core body 2 be mentioned aboveground, tubing string can carry out normal water filling operation.
Claims (6)
1. special profile control device, it comprises overcoat (1), overcoat (1) includes top connection (11), adapter sleeve (12) and lower contact (13), the lower end of top connection (11) is connected with the top axial of adapter sleeve (12) by screw thread, the lower end of adapter sleeve (12) is connected with the top axial of lower contact (13) by screw thread, it is characterized in that: in adapter sleeve (12), be provided with piston (14) and piston stage clip (15), piston (14) is sleeved in adapter sleeve (12), the inwall axial sliding fit of the outer wall of piston (14) and adapter sleeve (12), the below that piston stage clip (15) is positioned at piston (14) is arranged on adapter sleeve (12), match with the lower end of piston (14) in the upper end of piston stage clip (15), match with the upper surface of lower contact (13) in lower end, the be slidably matched sidewall of position of adapter sleeve (12) middle part and piston (14) is provided with a profile control hole one (16) being communicated with inside and outside adapter sleeve (12), the sidewall of profile control hole one (16) top piston (14) is provided with the inside and outside profile control hole two (17) of the connection piston (14) corresponding with profile control hole one (16), in overcoat (1), be provided with core body (2), core body (2) includes and drags for bar (21), Cam set assembly (3), main body (22), valve ball (23), valve ball stage clip (24), two locating detents (25), locating detent stage clip (26), lock tube (27), lock tube stage clip (28) and lockwheel assembly (4), the lower end of dragging for bar (21) is connected with the upper end of main body (22), Cam set assembly (3) is positioned at the below of dragging for bar (21), Cam set assembly (3) is by two cams (31), camshaft (32) and cam torsion spring (33) form, camshaft (32) is radially arranged in main body (22) along main body (22), two cams (31) and cam torsion spring (33) are arranged on respectively on camshaft (32), match respectively with two cams (31) in the two ends of cam torsion spring (33), projection on two cams (31) matches with the cam path of piston (14) inwall opposite side respectively, valve ball (23) and valve ball stage clip (24) are positioned at Cam set assembly (3) below and are arranged on the centre bore of main body (22) one on the other successively, valve ball (23) upwards matches with the valve ball seat (29) being located in main body (22) centre bore, the upper end of valve ball stage clip (24) is pressed on valve ball (23), lower end is pressed on main body (22) inner face, the sidewall of valve ball (23) below main body (22) is provided with the profile control hole three (30) corresponding with profile control hole two (17) on piston (14), two locating detents (25) are positioned at valve ball stage clip (24) below, upper end is hinged on respectively the upper left and right of main body (22) and matches, locating detent stage clip (26) is arranged on two ends between two locating detents (25) and is pressed in respectively on locating detent (25), lock tube (27) is positioned at locating detent (25) lower shaft to being slidably mounted on main body (22) centre bore, the lower end of blocking two locating detents (25) suitable for reading of lock tube (27) makes locating detent stage clip (26) compression, in main body (22), be radially provided with lock tube (27) sidewall on the lock tube axle (271) that is slidably matched of cylindrical void, the below that lock tube stage clip (28) is positioned at lock tube axle (271) is arranged on lock tube (27), the upper end of lock tube stage clip (28) is pressed on lock tube axle (271), lower end is pressed on the inner face of lock tube (27), lockwheel assembly (4) is positioned at lock tube (27) below, lockwheel assembly (4) is by lockwheel (41), lockwheel torsion spring, lockwheel pawl (42) and lockwheel pawl torsion spring form, lockwheel (41) is hinged in main body (22) by the lockwheel axle (43) being radially arranged in main body (22), outer rim matches with lock tube (27) lower surface, lockwheel torsion spring set is contained on lockwheel axle (43), match with main body (22) and lockwheel (41) respectively in two ends, one end of lockwheel pawl (42) is hinged in lockwheel (41) by lockwheel pawl axle (44), lockwheel pawl torsion spring set is contained on lockwheel pawl axle (44), match with lockwheel (41) and lockwheel pawl (42) respectively in two ends, core body (2) is assemblied in overcoat (1) from one end of overcoat (1) top connection (11), core body (2) main body (22) outer wall and piston (14) inwall axial sliding fit.
2. special profile control device as claimed in claim 1, it is characterized in that described piston (14) is by piston upper body (18), piston lower body (19) and support (20) form, the suitable for reading of piston upper body (18) is up big and down small tubaeform core guide mouth (10), cam path is located on piston upper body (18) inwall of core guide mouth (10) below, profile control hole two (17) is located on the sidewall of piston upper body (18), the upper end of piston lower body (19) is axially connected with the lower end of piston upper body (18) by external screw thread, the upper end of support (20) is axially connected with the lower end of piston lower body (19) by internal thread, match with the lower surface of support (20) in the upper end of piston stage clip (15), the inwall of support (20) is provided with the locating detent groove (101) matching with locating detent (25), adapter sleeve (12) is provided with radially and is arranged on the anti-turn screw (40) on adapter sleeve (12) by screw thread, position corresponding with anti-turn screw (40) on the outer wall of piston lower body (19) is axially arranged with the anti-rotation chute (102) being slidably matched towards the end of piston lower body (19) with anti-turn screw (40) along piston lower body (19).
3. special profile control device as claimed in claim 2, the outer wall that it is characterized in that described support (20) is provided with jump-ring slot one, on adapter sleeve (12) inwall, the position corresponding with jump-ring slot one is provided with jump-ring slot two, and the jump ring cover (103) in can retraction jump-ring slot one is installed in jump-ring slot one and jump-ring slot two after support (20) axially loaded.
4. special profile control device as claimed in claim 2, it is characterized in that being respectively equipped with seal groove on the piston upper body (18) of two (17) above and belows, described profile control hole and piston lower body (19) outer wall, the sealing ring coordinating with adapter sleeve (12) inwall slipper seal is installed in seal groove.
5. special profile control device as claimed in claim 1, it is characterized in that described main body (22) is by plug screw (221), upper main body (222), intermediate (223), lower main body (224) and guide head (225) form, plug screw (221) is sleeved on the upper end of dragging for bar (21) above and being connected to upper main body (222) by external screw thread, plug screw (221) and dragging between bar (21) is provided with by threading path to being arranged on plug screw (221), end and the shear pin (226) that drags for bar (21) and match, the lower end that drags for bar (21) is alternate with plug screw (221) separates a upward sliding distance, drag for bar (21) lower end bottom and be provided with limited block (211), limited block (211) matches with the arc-shaped limit groove (311) on two cams (31) and prevent that cam (31) from rotating to deviate from piston (14), Cam set assembly (3) is arranged in upper main body (222) by camshaft (32), the lower end of upper main body (222) is connected with the top axial of intermediate (223) by external screw thread, in intermediate (223) centre bore, be provided with the valve ball seat (29) that is positioned at main body (222) below, the below that valve ball (23) and valve ball stage clip (24) lay respectively at valve ball seat (29) is arranged in intermediate (223) centre bore, profile control hole three (30) is positioned at valve ball (23) below and is located on the sidewall of intermediate (223) and is connected with intermediate (223) centre bore, the lower end of intermediate (223) is connected with the top axial of lower main body (224) by internal thread, the lower end of valve ball stage clip (24) is pressed on the upper surface of lower main body (224), two locating detents (25), lock tube (27), lock tube axle (271) and lockwheel assembly (4) are arranged on respectively in lower main body (224), guide head (225) is arranged on lower main body (224) bottom by external screw thread.
6. special profile control device as claimed in claim 5, it is characterized in that being respectively equipped with seal groove on intermediate (223) outer wall of three (30) above and belows, described profile control hole, in seal groove, be provided with the sealing ring coordinating with the inwall slipper seal of piston (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087401.1U CN205243483U (en) | 2015-12-24 | 2015-12-24 | Special profile control ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087401.1U CN205243483U (en) | 2015-12-24 | 2015-12-24 | Special profile control ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205243483U true CN205243483U (en) | 2016-05-18 |
Family
ID=55942563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521087401.1U Withdrawn - After Issue CN205243483U (en) | 2015-12-24 | 2015-12-24 | Special profile control ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205243483U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422064A (en) * | 2015-12-24 | 2016-03-23 | 牡丹江博实石油机械科技有限公司 | Special profile control device |
| CN108999590A (en) * | 2017-06-06 | 2018-12-14 | 中国石油天然气股份有限公司 | Profile control tool, dispensing profile control integrated pipe column and technique |
-
2015
- 2015-12-24 CN CN201521087401.1U patent/CN205243483U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422064A (en) * | 2015-12-24 | 2016-03-23 | 牡丹江博实石油机械科技有限公司 | Special profile control device |
| CN105422064B (en) * | 2015-12-24 | 2017-09-05 | 牡丹江博实石油机械科技有限公司 | Special profile control device |
| CN108999590A (en) * | 2017-06-06 | 2018-12-14 | 中国石油天然气股份有限公司 | Profile control tool, dispensing profile control integrated pipe column and technique |
| CN108999590B (en) * | 2017-06-06 | 2021-07-02 | 中国石油天然气股份有限公司 | Profile control tool, separate injection profile control integrated pipe column and process |
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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: 20160518 Effective date of abandoning: 20170905 |