CN205382923U - Packing sand control technology tubular column is segmented to circulate by horizontal well outside of tubes - Google Patents
Packing sand control technology tubular column is segmented to circulate by horizontal well outside of tubes Download PDFInfo
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- CN205382923U CN205382923U CN201620011966.XU CN201620011966U CN205382923U CN 205382923 U CN205382923 U CN 205382923U CN 201620011966 U CN201620011966 U CN 201620011966U CN 205382923 U CN205382923 U CN 205382923U
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- sand control
- pawl
- horizontal well
- tubular column
- overcoat
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Abstract
The utility model discloses a packing sand control technology tubular column is segmented to circulate by horizontal well outside of tubes, including completion pipe string and service tubular column, the service is gone into under the tubular column to the completion pipe string inside. Completion pipe string includes hierarchical hoop, outside of tubes packer, screen pipe, controllable valve, segmentation packer, guide shoe that top -down connected gradually. The service tubular column includes oil pipe, conversion tool, direction head that top -down connected gradually. In conversion tool inserted into controllable valve, both carried out cooperation work. The one -level is installed at least to controllable valve. The utility model provides a present fill that technology segmentation quantity is limited, the latus rectum reduces in the completion pipe string, the stifled water of unable card, the complicated scheduling problem of structure, improves the sand control effect of the long well section horizontal well of loose sand oil reservoir.
Description
Technical field
This utility model relates to oil exploitation well open hole sand control well-completing process, specifically horizontal well tube exterior subsection flow pack sand control string.
Background technology
Compared with simple horizontal well sieve tube completion, carry out filling anti-sand technique tool at horizontal well open-hole annulus to have an enormous advantage: the gravel packing zone of high osmosis can keep unimpeded between oil well and pit shaft for a long time, improve well deliverability, make oil well keep high yield for a long time；Form sand block barrier at screen casing and open-hole annulus, be conducive to slowing down or avoid screen casing to block, extend the sand control life；The gravel packing zone of high intensity is possible to prevent cave-in, keeps wellbore stability.Current filling anti-sand manifold crosses the flushing valve of screen casing end to annular pack.In long sieve tube segment horizontal well construction, due to the leak-off of load fluid, gravel just settled in advance before underfill annular space, produces sand bridge blocking, causes filling imperfection, and sand controlling result is poor, constrains the popularization and application of filling anti-sand technology.
For realizing the balanced sold stowing sand control of long well section horizontal well, occur in that sublevel fill stoping technology, one of which technique are with, in completion tubular column lower going-into-well, opening sliding sleeve step by step by putting into the ball of obstructed diameter, it is achieved sublevel fill stoping by change internal diameter sliding sleeve.This technology has following limitation: the impact that (1) is arranged by sliding sleeve tee size classification, number of fragments is restricted；(2) ball seat makes latus rectum in completion tubular column reduce, and under the later stage, working string closes sliding sleeve difficulty, and stratum is told sand and caused filling anti-sand failure.
Another kind of technique is with, in filling tubing string lower going-into-well, screen casing and oil pipe annular space being divided into multistage by choked flow packer, by increasing fluid flow resistance, reaches the purpose of balanced filling.This technology has following limitation: (1) is only applicable to simple sieve tube completion, cannot filling for sectional well completion and selective completion；(2) it is simple annular space between screen casing and oil pipe is divided into multiple well section, it is impossible to realize effective separation of annular space between screen casing and bore hole, it is impossible to carry out card plug water construction targetedly；(3) interior service tube-column is long, and tool construction is complicated, and constructing operation is loaded down with trivial details, is constructed into power low.
Utility model content
The purpose of this utility model is in that to provide horizontal well tube exterior subsection flow pack sand control string, solve that existing filling process number of fragments is limited, in completion tubular column latus rectum reduce, cannot card water blockoff, complex structure and other problems, improve the sand controlling result of loose sand oil accumulation long well section horizontal well.
In order to reach above-mentioned purpose, this utility model have employed following technical scheme, horizontal well tube exterior subsection flow pack sand control string, and including completion tubular column and service tube-column, described service tube-column is lowered into inside completion tubular column.
Sizing collar that described completion tubular column includes being sequentially connected with from top to bottom, external packer of pipe, screen casing, controlled valve, section packer, guide shoe.
Oil pipe that described service tube-column includes being sequentially connected with from top to bottom, crossover tool, guide head.
Described crossover tool is inserted in controlled valve, and both carry out cooperating.
Described controlled valve at least installs one-level.
Described crossover tool includes controlling set, overcoat, inner sleeve, central canal, the described set lower semisection outer wall that controls is socketed overcoat, control set lower end inner wall socket inner sleeve, described jacket and inner sleeve all offers circulation port radially, described overcoat lower end connects outer sand control set, described inner sleeve lower end connects interior sand control set, arranges and turn to body between described outer sand control set with interior sand control set；Described overcoat epimere outer wall offers square hole and pawl is opened in installation, and described overcoat hypomere outer wall is offered square hole and installs closedown pawl, and described interior sand control set lower end connects central canal；Described outer set upper side connects upper packing element, gluing jacket casing is controlling on set, upper packing element upper end is upper glue tube base, described upper glue tube base radial aperture also installs wiper block, wiper block inwall and control to arrange flat spring between set outer wall, outer set upper side is offered the inner conical surface that male cone (strobilus masculinus) offers with the upper packing element of top and is docked；Described central canal outer wall is cased with lower rubber cylinder seat, lower rubber cylinder seat outer wall is cased with lower rubber cylinder, lower rubber cylinder upper end is offered the male cone (strobilus masculinus) that inner conical surface offers with lower rubber cylinder seat and is docked, and lower rubber cylinder seat upper end connects outer sand control set and to turning to body axial limiting, described lower rubber cylinder lower end connection deck；Described pawl of opening can swing, there is cylindrical projection described both sides, pawl body rear end of opening, front end then protrude square hole that overcoat epimere outer wall offers outer and, described in open both sides, pawl body rear end cylindrical projection and be provided with and can make to open the automatically reset torsion spring of pawl, described closedown pawl is in like manner；Described pawl of opening presses solidly in respective square hole respectively through respective pressing plate with closedown both sides, pawl rear end cylindrical projection；Described control set upper side connects top connection, and described central canal lower end connects lower contact.
Described controlled valve includes filling operation cylinder, slip cap, top connection, lower contact, described filling operation cylinder upper and lower side connects top connection and lower contact respectively, described slip cap is sleeved on filling operation cylinder inwall, described filling operation cylinder, slip cap all offer circulation port, and described slip cap is provided with combination locking mechanism；Described combination locking mechanism includes lock nut, inner lock rings, outer lock rings, described slip cap offers radially shoulder hole, described lock nut snaps in shoulder hole, radially blind slot offered by described filling operation cylinder, outer lock rings is radially in blind slot, and the outside of described lock nut also embeds an inner lock rings, and the outside of inner lock rings connects outer lock rings, described lock nut medial extremity is designed as taper surface, and taper surface stretches into slip cap inner chamber；Described outer lock rings and inner lock rings are C type structure, have to thimble grip；Described top connection, lower contact, filling operation cylinder inwall offer top reversing groove, bottom reversing groove and groove of slipping out of the hand respectively；Being attached with connector between top connection and filling operation cylinder, described top connection inwall is provided with direct orbit.
Compared to prior art, this utility model has the advantages that
1) this process pipe string achieves the sublevel fill stoping sand control of long well section horizontal well, the problem such as solve that existing sand-preventing process number of fragments is limited, latus rectum reduces in completion tubular column, filling leakiness, improves the sand controlling result of loose sand oil accumulation long well section horizontal well；
2) this process pipe string is simultaneously achieved the independence packing of pay interval, can pass through controlled valve and realize adjusting the measure such as producing pressure differential, Plugging Water Zones section.
2) controlled valve structures at different levels, equivalently-sized, number of fragments is unrestricted, and interior latus rectum is consistent with sleeve pipe, does not result in completion tubular column internal diameter and reduces step by step, without influence on later stage operation；
3) enter one-trip string under and can complete the keying of multiple controlled valve, it is achieved continuous, multi-stage adsorption, simplify construction procedure, shorten the activity duration；
4) crossover tool is only had just can to open the slip cap of controlled valve, it is prevented that operation process to open by mistake slip cap and causes stratum to tell sand.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model horizontal well tube exterior subsection flow pack sand control string；
Fig. 2 is sublevel fill stoping completion tubular column schematic diagram；
Fig. 3 is sublevel fill stoping service tube-column schematic diagram；
Fig. 4 is crossover tool structural representation；
Fig. 5 be controlled valve partly cut open schematic diagram；
Fig. 6 is that crossover tool opens controlled valve schematic diagram；
Fig. 7 is that crossover tool closes controlled valve schematic diagram；
Fig. 8 is that combination locking mechanism closes schematic diagram；
Fig. 9 is combination locking mechanism opening schematic diagram；
Figure 10 is direct orbit plane outspread drawing.
In figure: 1-controlled valve, 11-top connection, 111-top reversing groove, 12-direct orbit, 13-connector, 14-filling operation cylinder, 141-slips out of the hand groove, 15-sliding sleeve, 16-combination locking mechanism, 161-outer lock rings, 162-inner lock rings, 163-lock nut, 17-lower contact, 171-bottom reversing groove.
2-crossover tool, 21-top connection, 22-controls set, 23-wiper block, 24-flat spring, the upper glue tube base of 25-, 26, packing element, the upper packing element of 261-, 262-lower rubber cylinder, 27-overcoat, 28-pressing plate, 29-opens pawl, 210-torsion spring, 211-inner sleeve, 212-closes pawl, and 213-turns to body, the outer sand control set of 214-, sand control set in 215-, 216-central canal, 217-lower rubber cylinder seat, 218-deck, 219-lower contact.
31-surface pipe, 32-production string, 33-sizing collar, 34-external packer of pipe, 35-screen casing, 36-section packer, 37-guide shoe.
41-oil pipe, 42-guide head.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to illustrate as follows, but accompanying drawing only provides reference and purposes of discussion, is not used for this utility model is any limitation as.
Accompanying drawings 1-3, horizontal well tube exterior subsection filling anti-sand process pipe string includes completion tubular column and service tube-column two parts.Completion tubular column includes production string 32 and the sizing collar 33 being sequentially connected with, external packer of pipe 34, screen casing 35, controlled valve 1, section packer 36, guide shoe 37.Wherein, controlled valve at least installs one-level, is 3 grades in accompanying drawing 1.Service tube-column includes oil pipe 41 and the crossover tool 2 being sequentially connected with, guide head 42.
During completion practice, first according to oil reservoir, electrical measurement data optimizing fractional progression, it is determined that the position of sizing collar 33, external packer of pipe 34, controlled valve 1 and section packer 36, then according to design data will enter under completion tubular column to specifying position.Well head builds the pressure the sealing tube external packer 34 that rises, and continues to build the pressure and opens sizing collar 33, by completion of more than sieve tube segment cementing the well.First entering down the sealing pipe column that rises before packing job, rise envelope to section packer 36, it is achieved the independence packing (if using Self-expanding packer can omit this step) of pay interval.The service tube-column with crossover tool is entered under rear, crossover tool is utilized to open controlled valve circulation port, load fluid pumps into from oil pipe, open-hole annulus is entered through crossover tool circulation port, controlled valve circulation port, return on reverse, gravel is gradually deposited at open-hole annulus, and load fluid enters oil jacket annular space from screen casing and then returns out well head, completes flow pack sand control.After sand off, utilize crossover tool to close the circulation port of controlled valve, repeat this step, complete the filling construction of other intervals.
According to Fig. 4,6,7, crossover tool include top connection 21, control set 22, wiper block 23, flat spring 24, upper glue tube base 25, upper packing element 261, lower rubber cylinder 262, overcoat 27, pressing plate 28, open pawl 29, torsion spring 210, inner sleeve 211, close pawl 212, turn to body 213, outer sand control set 214, interior sand control set 215, central canal 216, lower rubber cylinder seat 217, deck 218, lower contact 219.The described set 22 lower semisection outer wall that controls is socketed overcoat 27, control set lower end inner wall socket inner sleeve 211, described jacket and inner sleeve all offers circulation port radially, transfer control set can by 211 inner sleeves, 22 control set, 27 overcoat three layers covers circulation port overlap set up circulation, described overcoat lower end connects outer sand control set 214, in described inner sleeve lower end connects, sand control overlaps 215, and outer sand control set, interior sand control set only serve connection and sealing function.Arrange between described outer sand control set and interior sand control set and turn to body 213；Described overcoat epimere outer wall offers square hole and pawl 29 is opened in installation, and described overcoat hypomere outer wall is offered square hole and installs closedown pawl 212, and described interior sand control set lower end connects central canal 216.
Described pawl 29 of opening includes opening pawl body, rotating shaft, torsion spring 210, described pawl body rear end thereof of opening is in rotating shaft, front end is then protruded outside the square hole that overcoat epimere outer wall is offered, and sheathed in described rotating shaft can make to open the automatically reset torsion spring of pawl, and described closedown pawl is in like manner.Described pawl of opening presses solidly in respective square hole respectively through respective pressing plate 28 with closedown pawl.Described control set upper side connects top connection 21, and described central canal lower end connects lower contact 219.
Described outer set upper side connects upper packing element 261, gluing jacket casing is controlling on set 22, upper packing element upper end is upper glue tube base 25, described upper glue tube base radial aperture also installs wiper block 23, wiper block inwall and control to arrange flat spring 24 between set outer wall, outer set upper side is offered the inner conical surface that male cone (strobilus masculinus) offers with the upper packing element of top and is docked；Described central canal outer wall is cased with lower rubber cylinder seat 217, lower rubber cylinder seat outer wall is cased with lower rubber cylinder 262, lower rubber cylinder upper end is offered the male cone (strobilus masculinus) that inner conical surface offers with lower rubber cylinder seat and is docked, and lower rubber cylinder seat upper end connects outer sand control set and to turning to body 213 axial limiting, described lower rubber cylinder lower end connection deck 218.
According to Fig. 5,6,7,8,9,10, with crossover tool with the use of filling anti-sand with switchable control valve, hereinafter referred to as controlled valve, including top connection 11, direct orbit 12, connector 13, filling operation cylinder 14, slip cap 15, combination locking mechanism 16, outer lock rings 161, inner lock rings 162, lock nut 163, lower contact 17.Described filling operation cylinder upper and lower side connects top connection and lower contact respectively, and described slip cap is sleeved on filling operation cylinder inwall, and described filling operation cylinder, slip cap all offer circulation port, and described slip cap is provided with combination locking mechanism 16.Described top connection, lower contact, filling operation cylinder inwall offer top reversing groove 111, bottom reversing groove 171 and groove 141 of slipping out of the hand respectively.Top reversing groove, bottom reversing groove corresponding conversion instrument open pawl and close pawl, open pawl and close pawl commutation use；The wiper block of direct orbit corresponding conversion instrument, aligns both crossover tool and controlled valve spout and uses, be attached with connector 13 between top connection and filling operation cylinder, and described top connection inwall is provided with direct orbit 12.Described combination locking mechanism includes lock nut 163, inner lock rings 162, outer lock rings 161, described slip cap offers radially shoulder hole, described lock nut snaps in shoulder hole, radial ringed blind slot offered by described filling operation cylinder, outer lock rings is radially in annular blind slot, the outside of described lock nut also embeds an inner lock rings, and described lock nut medial extremity is designed as taper surface, and taper surface stretches into slip cap inner chamber.Described outer lock rings and inner lock rings are C type structure, have to thimble grip.
During filling construction, use coiled tubing or plain tubing to connect crossover tool 2 bottom it, become service tube-column, be lowered in completion tubular column.When crossover tool 2 arrives the top reversing groove 111 of controlled valve, open pawl 29 and first closedown pawl 212 commutates as being directed upwardly；Continue to transfer crossover tool 2, when crossover tool arrives bottom reversing groove 171, owing to bottom reversing groove diameter stretches width more than opening pawl 29, and stretch width less than closing pawl 212, therefore open pawl 29 and commutate as being directed downward, closedown pawl 212 continues maintenance and is directed upwardly；Now lift up crossover tool, if well head suspending weight can rise, it was shown that close pawl 212 and block slip cap 15 lower end；Again transfer crossover tool, open pawl 29 and can block slip cap 15 upper end and promote slip cap descending；Now, due to the dimensional fits relation of internal diameter of external diameter and the slip cap 15 of overcoat 27, overcoat 27 promotes lock nut 163 radially overhanging, is ejected by outer lock rings 161, and slip cap 15 unlocks descending, opens controlled valve circulation port；While transferring tubing string, control set 22 descending, expose crossover tool circulation port, and promoting inner sleeve 211, turn to body 213, glue tube base 217 descending, compression lower rubber cylinder 262 is setting, top connection 21 promotes upper glue tube base 25 descending, in compression, packing element 261 is setting, seals circulation port two ends；Due to the guide effect of direct orbit 12, wiper block 23 can make crossover tool circulation port and controlled valve circulation port align, and now can start segmentation pickling and filling construction.Construct complete, lift up crossover tool 2, the up closedown controlled valve circulation port of slip cap 15, continue to lift up crossover tool 2, close pawl 212 and arrive groove 141 of slipping out of the hand, commutate and slip out of the hand for being directed downward, now controlled valve 1 can be proposed crossover tool 2, meanwhile, outer lock rings 161, by locked for slip cap 15, completes this section of filling anti-sand construction.Repeat this step, complete the packing job of other intervals.
In a word, this utility model horizontal well tube exterior subsection flow pack sand control pipe includes completion tubular column and service tube-column two parts.Completion tubular column includes sleeve pipe and the sizing collar being sequentially connected with, external packer of pipe, screen casing, filling anti-sand switchable control valve (hereinafter referred to as controlled valve), section packer, guide shoe.Wherein, controlled valve at least installs one-level, and section packer can use hydraulic base sealed formula or meet oil chance water Self-expanding packer.Service tube-column includes oil pipe and the crossover tool being sequentially connected with, guide head.Adopting service tube-column to be lowered into the structure in completion tubular column, one-trip string can open and close multiple controlled valve, it is achieved multi-stage adsorption.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence change of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.
Claims (7)
1. horizontal well tube exterior subsection flow pack sand control string, it is characterised in that including completion tubular column and service tube-column, described service tube-column is lowered into inside completion tubular column.
2. horizontal well tube exterior subsection flow pack sand control string according to claim 1, it is characterised in that sizing collar that described completion tubular column includes being sequentially connected with from top to bottom, external packer of pipe, screen casing, controlled valve, section packer, guide shoe.
3. horizontal well tube exterior subsection flow pack sand control string according to claim 2, it is characterised in that oil pipe that described service tube-column includes being sequentially connected with from top to bottom, crossover tool, guide head.
4. horizontal well tube exterior subsection flow pack sand control string according to claim 3, it is characterised in that described crossover tool is inserted in controlled valve, and both carry out cooperating.
5. horizontal well tube exterior subsection flow pack sand control string according to claim 3, it is characterised in that described controlled valve at least installs one-level.
6. horizontal well tube exterior subsection flow pack sand control string according to claim 3, it is characterized in that, described crossover tool includes controlling set, overcoat, inner sleeve, central canal, the described set lower semisection outer wall that controls is socketed overcoat, controlling set lower end inner wall socket inner sleeve, described jacket and inner sleeve all offers circulation port radially, and described overcoat lower end connects outer sand control set, described inner sleeve lower end connects interior sand control set, arranges and turn to body between described outer sand control set with interior sand control set；Described overcoat epimere outer wall offers square hole and pawl is opened in installation, and described overcoat hypomere outer wall is offered square hole and installs closedown pawl, and described interior sand control set lower end connects central canal；Described outer set upper side connects upper packing element, gluing jacket casing is controlling on set, upper packing element upper end is upper glue tube base, described upper glue tube base radial aperture also installs wiper block, wiper block inwall and control to arrange flat spring between set outer wall, outer set upper side is offered the inner conical surface that male cone (strobilus masculinus) offers with the upper packing element of top and is docked；Described central canal outer wall is cased with lower rubber cylinder seat, lower rubber cylinder seat outer wall is cased with lower rubber cylinder, lower rubber cylinder upper end is offered the male cone (strobilus masculinus) that inner conical surface offers with lower rubber cylinder seat and is docked, and lower rubber cylinder seat upper end connects outer sand control set and to turning to body axial limiting, described lower rubber cylinder lower end connection deck；Described pawl of opening can swing, there is cylindrical projection described both sides, pawl body rear end of opening, front end then protrude square hole that overcoat epimere outer wall offers outer and, described in open both sides, pawl body rear end cylindrical projection and be provided with and can make to open the automatically reset torsion spring of pawl, described closedown pawl is in like manner；Described pawl of opening presses solidly in respective square hole respectively through respective pressing plate with closedown both sides, pawl rear end cylindrical projection；Described control set upper side connects top connection, and described central canal lower end connects lower contact.
7. horizontal well tube exterior subsection flow pack sand control string according to claim 3, it is characterized in that, described controlled valve includes filling operation cylinder, slip cap, top connection, lower contact, described filling operation cylinder upper and lower side connects top connection and lower contact respectively, described slip cap is sleeved on filling operation cylinder inwall, described filling operation cylinder, slip cap all offer circulation port, and described slip cap is provided with combination locking mechanism；Described combination locking mechanism includes lock nut, inner lock rings, outer lock rings, described slip cap offers radially shoulder hole, described lock nut snaps in shoulder hole, radially blind slot offered by described filling operation cylinder, outer lock rings is radially in blind slot, and the outside of described lock nut also embeds an inner lock rings, and the outside of inner lock rings connects outer lock rings, described lock nut medial extremity is designed as taper surface, and taper surface stretches into slip cap inner chamber；Described outer lock rings and inner lock rings are C type structure, have to thimble grip；Described top connection, lower contact, filling operation cylinder inwall offer top reversing groove, bottom reversing groove and groove of slipping out of the hand respectively；Being attached with connector between top connection and filling operation cylinder, described top connection inwall is provided with direct orbit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620011966.XU CN205382923U (en) | 2016-01-07 | 2016-01-07 | Packing sand control technology tubular column is segmented to circulate by horizontal well outside of tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620011966.XU CN205382923U (en) | 2016-01-07 | 2016-01-07 | Packing sand control technology tubular column is segmented to circulate by horizontal well outside of tubes |
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| CN205382923U true CN205382923U (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620011966.XU Active CN205382923U (en) | 2016-01-07 | 2016-01-07 | Packing sand control technology tubular column is segmented to circulate by horizontal well outside of tubes |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106089161A (en) * | 2016-08-21 | 2016-11-09 | 中国石油化工股份有限公司 | A kind of layering section sand control production integration control valve and completion tubular column |
| CN106121586A (en) * | 2016-08-21 | 2016-11-16 | 中国石油化工股份有限公司 | A kind of layering section sand control production integration control valve |
| CN106121548A (en) * | 2016-08-19 | 2016-11-16 | 中国石油集团渤海钻探工程有限公司 | A kind of sand prevention integrated tubing string of righting and operational approach thereof |
| CN107269252A (en) * | 2017-07-06 | 2017-10-20 | 核工业北京化工冶金研究院 | It is reverse in a kind of well to throw gravel instrument and its application method |
| CN112664148A (en) * | 2021-03-18 | 2021-04-16 | 东营市福利德石油科技开发有限责任公司 | Horizontal well sand prevention completion pipe string and horizontal well rapid sand prevention completion method |
| CN112709557A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction method |
| CN114837630A (en) * | 2022-05-26 | 2022-08-02 | 中煤科工集团西安研究院有限公司 | Coal mine underground broken soft coal seam directional long drilling fast screening system and method |
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- 2016-01-07 CN CN201620011966.XU patent/CN205382923U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106121548A (en) * | 2016-08-19 | 2016-11-16 | 中国石油集团渤海钻探工程有限公司 | A kind of sand prevention integrated tubing string of righting and operational approach thereof |
| CN106121548B (en) * | 2016-08-19 | 2018-08-17 | 中国石油集团渤海钻探工程有限公司 | A kind of sand prevention integrated tubing string of righting and its operating method |
| CN106089161A (en) * | 2016-08-21 | 2016-11-09 | 中国石油化工股份有限公司 | A kind of layering section sand control production integration control valve and completion tubular column |
| CN106121586A (en) * | 2016-08-21 | 2016-11-16 | 中国石油化工股份有限公司 | A kind of layering section sand control production integration control valve |
| CN106089161B (en) * | 2016-08-21 | 2018-10-16 | 中国石油化工股份有限公司 | A kind of layering section sand control production integration control valve and completion tubular column |
| CN107269252A (en) * | 2017-07-06 | 2017-10-20 | 核工业北京化工冶金研究院 | It is reverse in a kind of well to throw gravel instrument and its application method |
| CN112709557A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction method |
| CN112709557B (en) * | 2019-10-24 | 2022-12-06 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction method |
| CN112664148A (en) * | 2021-03-18 | 2021-04-16 | 东营市福利德石油科技开发有限责任公司 | Horizontal well sand prevention completion pipe string and horizontal well rapid sand prevention completion method |
| CN112664148B (en) * | 2021-03-18 | 2021-06-29 | 东营市福利德石油科技开发有限责任公司 | Horizontal well sand prevention completion pipe string and horizontal well rapid sand prevention completion method |
| CN114837630A (en) * | 2022-05-26 | 2022-08-02 | 中煤科工集团西安研究院有限公司 | Coal mine underground broken soft coal seam directional long drilling fast screening system and method |
| CN114837630B (en) * | 2022-05-26 | 2023-08-25 | 中煤科工集团西安研究院有限公司 | Quick screen pipe feeding system and method for directional long drilling of underground crushed soft coal layer of coal mine |
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