CN101915071A - Tool for filling and backwashing oil well - Google Patents
Tool for filling and backwashing oil well Download PDFInfo
- Publication number
- CN101915071A CN101915071A CN2010102292167A CN201010229216A CN101915071A CN 101915071 A CN101915071 A CN 101915071A CN 2010102292167 A CN2010102292167 A CN 2010102292167A CN 201010229216 A CN201010229216 A CN 201010229216A CN 101915071 A CN101915071 A CN 101915071A
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- China
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- filling
- urceolus
- coat
- turning
- oil well
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Abstract
The invention relates to a tool for filling and backwashing an oil well, which is characterized in that: the middle part in a filling outer tube (1) is movable connected with a filling central tube (2), so the tool can fill the oil well for two or more times, reduce cost, shorten construction period, reduce lifting time, improve sand prevention quality, prolong sand prevention valid period, achieve a large sand prevention diameter, form a high-performance sand blocking screen, have high fluid producing intensity and carrying capacity, reduce the pollution on an oil layer and make well repair easier, and is particularly suitable for filling the oil well for multiple times and backwashing during oil field operation.
Description
Technical field
The present invention relates to the filling in a kind of oil gas well repair process and the instrument of anti-flushing well operation, the particularly a kind of instrument that can repeatedly finish oil well filling and anti-flushing well.
Background technology
At present, China is in petroleum industry, and along with loose sand oil accumulation exploitation scale constantly enlarges, this just need often repair the borehole wall of the oil well of this class geological conditions, thereby improves the sand control success rate, extends the expiration date the reduction operating cost; Now, in the prior art, high pressure packing primary filling instrument is mainly adopted in the sand control operation, though this instrument in use is a kind of leading highly sophisticated products in the current oilfield of China, in use can only carry out the primary filling operation to oil well, can not secondary or repeatedly filling, and carry instrument on when repairing, needing, produce long in time limit, the cost height, sand prevention is of poor quality, and the sand prevention period of validity is short.
Summary of the invention
Purpose of the present invention be exactly to provide a kind of do not use the instrument of carrying can secondary or repeatedly filling, minimizing expense, reduction of erection time, minimizing on the well time, improve the sand prevention quality, prolong the sand prevention period of validity, effectively sand prevention Feng Jing big, formed the husky barrier of dynamical retaining, fluid producing intensity height, the power of carrying is strong, reduced the pollution of oil reservoir and the instrument of easier oil well filling of well workover and anti-flushing well.
The object of the present invention is achieved like this: the instrument of a kind of oil well filling and anti-flushing well is characterized in that the middle part flexibly connects the filling central tube in the filling outer tube.
Filling outer tube of the present invention is by the fixedly connected filling urceolus of positioning sleeve one end upper end, fixedly connected location is strong near the inwall of the positioning sleeve of filling urceolus, connect the filling inner core on the inwall of filling urceolus, outside filling, connect guide ring on the drum outer wall, and on the relative filling inner core inwall of guide ring, connect upper seal bore, filling urceolus lower end connects the urceolus upper end of turning one's coat by connector, turn one's coat and connect inner core on the outer tube inner wall, connect the lower seal tube on the inwall of the middle part of inner core, the fixedly connected lower contact in urceolus lower end of turning one's coat is formed, between positioning sleeve and the filling urceolus by being threaded, the filling urceolus by connector with turn one's coat between the urceolus by being threaded, turn one's coat between urceolus and the lower contact by being threaded, with the filling inner core of upper seal bore junction at least 2 pack holes are arranged, on the corresponding filling urceolus at least 2 pack holes are also arranged, the spring I is arranged in the upper seal bore, with the inner core of lower seal tube junction at least 2 skies of turning one's coat are arranged, at least 2 skies of turning one's coat are also arranged on the corresponding urceolus of turning one's coat, the spring II is arranged in the lower seal tube.
Filling central tube of the present invention is on the sidewall by the lower end of guide pipe locating hole to be arranged, its lower end is connected with the pipe of turning one's coat, on the wall of pipe upper end of turning one's coat, at least 2 pack holes are arranged, on the wall of its Lower Half, have 2 holes of turning one's coat at least, turning one's coat flexibly connects hydraulic piston on the inwall of pipe, and its lower end connects pipe nipple and forms.
Be that by the location on the filling outer tube locating hole on the strong and filling central tube flexibly connects being connected between filling outer tube of the present invention and the filling central tube.
The present invention compared with prior art has the following advantages:
Because adopted the form of structure of middle part flexible connection filling central tube in the filling outer tube, thereby:
1, under the situation that oil well need be repaired, do not use the instrument of carrying and get final product, reduce expense, reduction of erection time like this, on manpower and materials, saved sizable fund;
2, after the oil well of repairing carries out the sand surfing processing, can directly insert the filling central tube and carry out filling and anti-flushing well operation, reduce the last well time like this, improved the sand prevention quality, prolonged the sand prevention period of validity;
3, big discharge capacity high pressure combines stratum filling and wellbore fillup, has guaranteed that pack gravel and air-conditioning perisporium closely inlay, and effective sand prevention Feng Jing is big, has formed the husky barrier of dynamical retaining, so period of validity is long, has overcome the deficiency of primary filling;
4, fluid producing intensity height, the power of carrying is strong, and the pollution and the well workover that have reduced oil reservoir are easier.
Description of drawings:
Fig. 1: be concrete structure schematic diagram of the present invention
Fig. 2: be the concrete structure schematic diagram of filling outer tube of the present invention (1)
Fig. 3: be the concrete structure schematic diagram of filling central tube of the present invention (2)
1, filling outer tube 2, filling central tube 3, positioning sleeve 4, positioning key 5, filling urceolus
6, filling inner core 7, guide ring 8, spring I 9, upper seal bore 10, connector
11, turn one's coat urceolus 12, inner core 13, lower seal tube 14, spring II 15, lower contact
16, guide pipe 17, locating hole 18, hydraulic piston 19, turn one's coat pipe 20, pipe nipple
The specific embodiment:
Filling outer tube 1 is by filling urceolus 5 upper ends that are threaded by positioning sleeve 3 one ends, fixedly connected location strong 4 near the inwall of the positioning sleeve 3 of filling urceolus 5, the inwall welding filling inner core 6 of filling urceolus 5, on filling urceolus 5 outer walls, connect guide ring 7, guide ring 7 is set upright the filling orientation with semiclosed the playing of pack hole when going into the well, on relative filling inner core 6 inwalls of guide ring 7, connect upper seal bore 9, with the filling inner core 6 of upper seal bore 9 junctions on 3 pack holes are arranged, 3 pack holes are also arranged on the corresponding filling urceolus 6, spring I 8 is arranged in the upper seal bore 9, filling urceolus 5 lower ends are by connector 10 urceolus 11 upper ends of turning one's coat by being threaded, the welding inner core 12 on urceolus 11 inwalls of turning one's coat, connect lower seal tube 13 on the inwall of the middle part of inner core 12, with the inner core 12 of lower seal tube 13 junctions on 3 skies of turning one's coat are arranged, on the corresponding urceolus 11 of turning one's coat 3 skies of turning one's coat are also arranged, spring II 14 is arranged in the lower seal tube 13, urceolus 11 lower ends of turning one's coat are formed by the lower contact 15 that is threaded; Filling central tube 2 is on the sidewall by the lower end of guide pipe 16 locating hole 17 to be arranged, its lower end and the pipe of turning one's coat are 19 by being threaded, on the wall of pipe 19 upper ends of turning one's coat, 3 pack holes are arranged, 3 holes of turning one's coat are arranged on the wall of its Lower Half, turning one's coat flexibly connects hydraulic piston 18 on pipe 19 the inwall, and its lower end connects pipe nipple 20 and forms; Be being connected between filling outer tube 1 and the filling central tube 2 to flexibly connect by the locating hole on location on the filling outer tube 1 strong 4 and the filling central tube 2 17.
During use, now the present invention and disposable high pressure packing device are linked together, form device for filling, in needs carry out the oil gas well of sand prevention operation, with it down to the precalculated position, insert oil pipe and filling central tube 2, locating hole 17 on the filling central tube 2 well combines with the positioning key 4 on the filling outer tube 1, at this moment, hydraulic piston 18 presses off upper seal bore 9 and lower seal tube 13, passage is opened in pressurization, inject high pressure by the surface pump group and take the sand flow body, through filling the filler opening on the central tube 2 and filling urceolus 5, filling on the inner core 6 filler opening enters oil reservoir and fills, after the surface pump group is injected high pressure accuracy sand flow body, water again recoils, by oil well bottom pressure water is injected in the pipe 19 of turning one's coat, by turn one's coat hole and connector 10 on turn one's coat hole and the filling outer tube 1 on it sand in the oil pipe is dashed to ground, after described filling well-flushing step is finished, to fill central tube 2 proposes in tubing string, upper seal bore 9 moved up under the effect of spring II 14 and then the hole of turning one's coat on pack hole on the filling inner core 6 and the inner core 12 was sealed in spring I 8 and lower seal tube 13 this moment, filling outer tube 1 does not need to mention on the ground, so just can realize repeatedly operation; When needing again to carry out the sand prevention operation, repeat above-mentioned steps and get final product.
Claims (6)
1. the instrument of oil well filling and anti-flushing well is characterized in that the interior middle part of filling outer tube (1) flexibly connects filling central tube (2).
2. the instrument of oil well filling according to claim 1 and anti-flushing well, it is characterized in that described filling outer tube (1) is by the positioning sleeve fixedly connected filling urceolus of (3) one ends (5) upper end, fixedly connected location strong (4) near the inwall of the positioning sleeve (3) of filling urceolus (5), connect filling inner core (6) on the inwall of filling urceolus (5), on filling urceolus (5) outer wall, connect guide ring (7), and on relative filling inner core (6) inwall of guide ring (7), connect upper seal bore (9), filling urceolus (5) lower end connects urceolus (11) upper end of turning one's coat by connector (10), turn one's coat and connect inner core (12) on urceolus (11) inwall, connect lower seal tube (13) on the inwall of the middle part of inner core (12), the fixedly connected lower contact in the urceolus of turning one's coat (11) lower end (15) is formed.
3. the instrument of oil well filling according to claim 2 and anti-flushing well, it is characterized in that between described positioning sleeve (3) and the filling urceolus (5) by being threaded, filling urceolus (5) by between connector (10) and the urceolus of turning one's coat (11) by being threaded, between the urceolus of turning one's coat (11) and the lower contact (15) by being threaded.
4. the instrument of oil well filling according to claim 2 and anti-flushing well, it is characterized in that described with the filling inner core (6) of upper seal bore (9) junction at least 2 pack holes are arranged, on the corresponding filling urceolus (5) at least 2 pack holes are also arranged, spring I (8) is arranged in the upper seal bore (9), with the inner core (12) of lower seal tube (13) junction at least 2 skies of turning one's coat are arranged, at least 2 skies of turning one's coat are also arranged on the corresponding urceolus of turning one's coat (11), spring II (14) is arranged in the lower seal tube (13).
5. the instrument of oil well filling according to claim 1 and anti-flushing well, it is characterized in that described filling central tube (2) is on the sidewall by the lower end of guide pipe (16) locating hole (17) to be arranged, its lower end is connected with the pipe (19) of turning one's coat, on the wall of pipe (19) upper end of turning one's coat, at least 2 pack holes are arranged, at least 2 holes of turning one's coat are arranged on the wall of its Lower Half, turning one's coat flexibly connects hydraulic piston (18) on the inwall of pipe (19), and its lower end connects pipe nipple (20) and forms.
6. according to the instrument of claim 1,2,3,4 or 5 described oil well fillings and anti-flushing well, it is characterized in that being connected between described filling outer tube (1) and the filling central tube (2) is by locating hole (17) flexible connection on the location on the filling outer tube (1) strong (4) and the filling central tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102292167A CN101915071A (en) | 2010-07-07 | 2010-07-07 | Tool for filling and backwashing oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102292167A CN101915071A (en) | 2010-07-07 | 2010-07-07 | Tool for filling and backwashing oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101915071A true CN101915071A (en) | 2010-12-15 |
Family
ID=43322685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102292167A Pending CN101915071A (en) | 2010-07-07 | 2010-07-07 | Tool for filling and backwashing oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101915071A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777148A (en) * | 2012-08-24 | 2012-11-14 | 招远金河石油设备技术开发有限公司 | Double-function releasing bridge plug for horizontal well |
| CN104110231A (en) * | 2013-04-22 | 2014-10-22 | 中国石油化工股份有限公司 | Energy-saving packing device for heavy oil thermal recovery |
| CN114439432A (en) * | 2020-10-20 | 2022-05-06 | 中国石油化工股份有限公司 | Hydraulic shaping, filling and sand prevention integrated pipe column and method |
| CN116658131A (en) * | 2023-08-02 | 2023-08-29 | 招远金河石油设备技术开发有限公司 | Vibration screen tube sand filtering screen pipe device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1479636A1 (en) * | 1987-06-18 | 1989-05-15 | Всесоюзный научно-исследовательский и проектно-конструкторский институт геофизических методов исследований, испытания и контроля нефтегазоразведочных скважин | Packer |
| US5494109A (en) * | 1995-01-19 | 1996-02-27 | Stren Company | Backflush filter system for downhole pumps |
| CN1281088A (en) * | 2000-08-25 | 2001-01-24 | 王松 | One-step filling technology for isolating high pressure and its tool |
| CN2530030Y (en) * | 2002-01-22 | 2003-01-08 | 中国石化胜利油田有限公司井下作业公司 | Oil well anti-sand filling device |
| CN2642986Y (en) * | 2003-07-09 | 2004-09-22 | 冯永胜 | Filling mechanism |
| CN101078341A (en) * | 2007-05-25 | 2007-11-28 | 冯永胜 | Oil gas water well open hole filling sand prevention completion method and tool |
| CN201771469U (en) * | 2010-07-07 | 2011-03-23 | 招远金河石油设备技术开发有限公司 | Tool for oil well filling and backwashing |
-
2010
- 2010-07-07 CN CN2010102292167A patent/CN101915071A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1479636A1 (en) * | 1987-06-18 | 1989-05-15 | Всесоюзный научно-исследовательский и проектно-конструкторский институт геофизических методов исследований, испытания и контроля нефтегазоразведочных скважин | Packer |
| US5494109A (en) * | 1995-01-19 | 1996-02-27 | Stren Company | Backflush filter system for downhole pumps |
| CN1281088A (en) * | 2000-08-25 | 2001-01-24 | 王松 | One-step filling technology for isolating high pressure and its tool |
| CN2530030Y (en) * | 2002-01-22 | 2003-01-08 | 中国石化胜利油田有限公司井下作业公司 | Oil well anti-sand filling device |
| CN2642986Y (en) * | 2003-07-09 | 2004-09-22 | 冯永胜 | Filling mechanism |
| CN101078341A (en) * | 2007-05-25 | 2007-11-28 | 冯永胜 | Oil gas water well open hole filling sand prevention completion method and tool |
| CN201771469U (en) * | 2010-07-07 | 2011-03-23 | 招远金河石油设备技术开发有限公司 | Tool for oil well filling and backwashing |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777148A (en) * | 2012-08-24 | 2012-11-14 | 招远金河石油设备技术开发有限公司 | Double-function releasing bridge plug for horizontal well |
| CN102777148B (en) * | 2012-08-24 | 2015-06-24 | 招远金河石油设备技术开发有限公司 | Double-function releasing bridge plug for horizontal well |
| CN104110231A (en) * | 2013-04-22 | 2014-10-22 | 中国石油化工股份有限公司 | Energy-saving packing device for heavy oil thermal recovery |
| CN114439432A (en) * | 2020-10-20 | 2022-05-06 | 中国石油化工股份有限公司 | Hydraulic shaping, filling and sand prevention integrated pipe column and method |
| CN114439432B (en) * | 2020-10-20 | 2024-03-22 | 中国石油化工股份有限公司 | Hydraulic shaping, filling and sand prevention integrated pipe column and method |
| CN116658131A (en) * | 2023-08-02 | 2023-08-29 | 招远金河石油设备技术开发有限公司 | Vibration screen tube sand filtering screen pipe device |
| CN116658131B (en) * | 2023-08-02 | 2023-10-10 | 招远金河石油设备技术开发有限公司 | Vibration screen tube sand filtering screen pipe device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101215 |