CN102635328B - Method for running bridge plug sitting tool by means of differential pressure and bridge plug sitting tool utilized by same - Google Patents
Method for running bridge plug sitting tool by means of differential pressure and bridge plug sitting tool utilized by same Download PDFInfo
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- CN102635328B CN102635328B CN201210112437.5A CN201210112437A CN102635328B CN 102635328 B CN102635328 B CN 102635328B CN 201210112437 A CN201210112437 A CN 201210112437A CN 102635328 B CN102635328 B CN 102635328B
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Abstract
The invention relates to a method for running a bridge plug sitting tool by means of differential pressure and a bridge plug sitting tool used by the same. When a bridge plug is sit, the bridge plug is electrified from the ground through a cable, an electromagnetic valve is turned on or a rupture disk is ruptured, a liquid inlet hole is opened, or a clock is turned on to drive an upper mandrel to move, annulus fluid enters into the tool to drive a piston to move upwards due to the differential pressure with an air chamber, the bridge plug is sit, and the piston moves continuously and upwards so as to be released from the bridge plug. The bridge plug sitting tool has three types such as an electromagnetic valve control type, a rupture disk control type and a clock control type, and consists of a cable connecting joint, an upper joint, an upper outer cylinder, a middle outer cylinder, a lower outer cylinder, an adjusting nut, a push rod, one bridge plug connecting joint, an internally-arranged electromagnetic valve, an internally-arranged contact switch, an upper mandrel, a piston, an upper piston rod, a lower piston rod, another bridge plug connecting joint and the like which are in threaded connection with one another. According to the invention, the bridge plug is stable in sitting process, and small in vibration, and when the bridge plug is connected with a perforation hole in parallel, a perforation apparatus can not be vibrated to be broken; and when the bridge plug is released, the contact switch can be touched, so that a conducting wire is disconnected, and the tool provided by the invention is obvious in ground display.
Description
Technical field
Patent of the present invention relates to a kind of lower bridging plug method of oil-water well and the setting instrument of bridging plug used.Particularly with hydraulic base sealed method and the setting instrument of solenoid control, rupture disk control, clock control.
Background technology
Bridging plug is used for Oil/gas Well sealing, has that working procedure is few, the cycle is short, a card envelope position feature accurately, is divided into permanent type bridging plug and detachable bridge plug two kinds.Its operating principle is: utilize cable or tubing string to be transported to pit shaft precalculated position, the pressure produced by gunpowder explosion, hydraulic base sealed or mechanical setting instrument acts on upper slips, pulling force acts on tension force stick, by upper lower cone, upper pressure is imposed to cartridge and draw two power, when pulling force reaches certain value, tension force stick ruptures, and setting instrument and bridging plug depart from.Locking device now on bridging plug central tube plays usefulness, and upper lower slips fragmentation is also embedded on internal surface of sleeve pipe, and packing element expands and seals, and completes setting.
The setting employing electric ignition of traditional electric cable bridge plug, gunpowder detonation in setting instrument produces the power of gases at high pressure as setting bridging plug, and it has the following disadvantages: shake larger; When bridging plug operation and perforation join do time, may perforating appliances be damaged; Relate to the use of priming system, there is certain danger.Therefore, need exploitation without gunpowder, the setting instrument of low vibrations electric cable bridge plug and construction technology.
Summary of the invention
The object of the invention is for above-mentioned present situation, aim to provide a kind of structure simple, easy to operate, can use in oil, gas, well, setting utilize pressure reduction electromagnetic-valve control type, rupture disc controlled type, clock control formula bridging plug setting reliably method and setting instrument used.
The implementation of the object of the invention is, utilize the method for the setting tool seat envelope of pressure reduction bridging plug, concrete steps are as follows:
1) open the setting instrument oil cavity channel of bridging plug, annulus fluid enters the setting instrument of bridging plug in urceolus and lower urceolus from bridging plug setting instrument inlet,
2) the pressure differential piston stroking upward between the liquid-to-air chamber of coming in, piston upwards drives bridging plug jointing to move upward, and bridging plug jointing is connected with the center-pole of bridging plug, and bridging plug center-pole up compression bridge plug seat sealing makes bridging plug setting,
3) bridge plug seat is honored as a queen, and piston continuation is up to be realized bridging plug give up until bridging plug jointing and bridging plug center-pole departs from,
4) realize after bridging plug gives up, touch contact-making switch, contact-making switch has wire to be connected with on the control panel on ground, and ground judges whether successfully to give up according to pilot break-make.
Utilize the setting instrument of electromagnetic-valve control type bridging plug that the setting tool seat of pressure reduction bridging plug is sealed, the setting instrument of electromagnetic-valve control type bridging plug, top connection one end is threaded with cable connection joint, one end is threaded with upper urceolus, middle urceolus one end is threaded with upper urceolus, one end is threaded with lower urceolus, lower urceolus and nut, push rod is threaded, there is O-ring seals junction, in, lower urceolus has inlet one, two, upper urceolus has air inlet port, electromagnetic valve is fixed in top connection by cable connection joint, contact-making switch is positioned at top connection, piston is positioned at upper outside tube inner chamber, upper spindle is through piston cock body, the spring of electromagnetic valve is withstood in termination, the upper piston rod of piston is positioned at lower urceolus, lower piston rod is positioned at lower urceolus and push rod, lower piston club head connects bridging plug jointing, bridging plug and push rod, bridging plug jointing is connected.
Utilize the setting instrument of rupture disc controlled type bridging plug that the setting tool seat of pressure reduction bridging plug is sealed, top connection one end of the setting instrument of rupture disc controlled type bridging plug is threaded with cable connection joint, one end is threaded with upper urceolus, middle urceolus one end is threaded with upper urceolus, one end is threaded with lower urceolus, lower urceolus is threaded with nut, push rod, there is O-ring seals junction, rupture disk is threaded with upper urceolus end, middle urceolus, lower urceolus have inlet one, inlet two, and upper urceolus has air inlet port.
Contact-making switch is positioned at top connection, piston is positioned at upper outside tube inner chamber, upper spindle is through piston cock body, the spring of top connection is withstood in termination, the upper piston rod of piston is positioned at lower urceolus, lower piston rod is positioned at lower urceolus and push rod, and lower piston club head connects bridging plug jointing, and bridging plug is connected with push rod, bridging plug jointing.
The setting instrument of clock control formula bridging plug utilizing the setting tool seat of pressure reduction bridging plug to seal, top connection one end of the setting instrument of clock control formula bridging plug is threaded with cable connection joint, one end is threaded with upper urceolus, middle urceolus one end is threaded with upper urceolus, one end is threaded with lower urceolus, and lower urceolus is threaded with nut, push rod, and there is O-ring seals junction, middle urceolus, lower urceolus have inlet one, inlet two, and upper urceolus has air inlet port.
Contact-making switch is positioned at top connection, piston is positioned at upper outside tube inner chamber, upper spindle is through piston cock body, termination is threaded with clock, the upper piston rod of piston is positioned at lower urceolus, lower piston rod is positioned at lower urceolus and push rod, and lower piston club head connects bridging plug jointing, and bridging plug is connected with push rod, bridging plug jointing.
Adopt the present invention; because the passage opened by electromagnetic valve, rupture disk, clock in setting instrument is narrow; limit the speed of annular fluid from inlet entering tool; make bridging plug setting procedure comparatively steady; thus overcome the setting instrument of gunpowder deflagration type and shake large defect, carrying out protecting perforating appliances to be badly shaken when connection is done with perforation.Control line in instrument is at piston movement to extreme position, and realize bridging plug when giving up, can touch a contact-making switch, contact-making switch has wire to be connected with on the control panel on ground, and ground can to judge to give up whether success according to pilot break-make.
Tool construction of the present invention is simple, easy to operate.The present invention can be widely applied in the bridging plug construction of oil, gas, well, particularly oilfield.
Accompanying drawing explanation
Fig. 1 is the original operating state structural representation of the setting instrument of electromagnetic-valve control type bridging plug of the present invention,
Fig. 2 is the final working state structure schematic diagram of the setting instrument of electromagnetic-valve control type bridging plug of the present invention,
Fig. 3 is the original operating state structural representation of the setting instrument of rupture disc controlled type bridging plug of the present invention,
Fig. 4 is the final working state structure schematic diagram of the setting instrument of rupture disc controlled type bridging plug of the present invention,
Fig. 5 is the original operating state structural representation of the setting instrument of clock control formula bridging plug of the present invention,
Fig. 6 is the final working state structure schematic diagram of the setting instrument of clock control formula bridging plug of the present invention.
Detailed description of the invention
Utilize pressure reduction to use the method for the setting tool seat envelope of bridging plug, concrete steps are as follows:
1) open the setting instrument oil cavity channel of bridging plug, annulus fluid enters the setting instrument of bridging plug in urceolus and lower urceolus from bridging plug setting instrument inlet,
2) the pressure differential piston stroking upward between the liquid-to-air chamber of coming in, piston upwards drives bridging plug jointing to move upward, and bridging plug jointing is connected with the center-pole of bridging plug, and bridging plug center-pole up compression bridge plug seat sealing makes bridging plug setting,
3) bridge plug seat is honored as a queen, and piston continuation is up to be realized bridging plug give up until bridging plug jointing and bridging plug center-pole departs from,
4) realize after bridging plug gives up, touch contact-making switch, contact-making switch has wire to be connected with on the control panel on ground, and ground judges whether successfully to give up according to pilot break-make.
Open the setting instrument oil cavity channel of bridging plug, allow annulus fluid enter the setting instrument of bridging plug urceolus and the method in lower urceolus from bridging plug setting instrument inlet different and different according to setting instrument.
For the setting instrument of electromagnetic-valve control type bridging plug, from ground by cable, the setting instrument of electromagnetic-valve control type bridging plug is energized, open electromagnetic valve, the suction of electromagnetic valve makes upper spindle move and opens oil cavity channel, and oil cavity channel is opened rear annulus fluid and to be entered the setting instrument of electromagnetic-valve control type bridging plug in urceolus and lower urceolus respectively from inlet.
For the setting instrument of rupture disc controlled type bridging plug, from ground by annular space, the setting instrument of rupture disc controlled type bridging plug is pressurizeed, after annular pressure reaches the limiting value of rupture disk, rupture disk passage is opened, and after opening rupture disk pressure channel, annulus fluid to enter the setting instrument of rupture disc controlled type bridging plug in urceolus and lower urceolus from inlet respectively.
For the setting instrument of clock control formula bridging plug, from ground by cable, the setting instrument of clock control formula bridging plug is energized, start clock, the clockwork spring of clock utilizes screw thread to drive upper spindle to move, upper spindle moves opens oil cavity channel, and oil cavity channel is opened rear annulus fluid and to be entered the setting instrument of clock control formula bridging plug in urceolus and lower urceolus respectively from inlet.
With reference to the accompanying drawings in detail the present invention is described in detail.
With reference to Fig. 1,2, top connection 2 one end of the setting instrument of electromagnetic-valve control type bridging plug of the present invention is threaded with cable connection joint 1, one end is threaded with upper urceolus 5, middle urceolus 8 one end is threaded with upper urceolus 5, one end is threaded with lower urceolus 10, lower urceolus 10 is threaded with nut 12, push rod 13, and there is O-ring seals junction.Middle urceolus 8, lower urceolus 10 have inlet 1, inlet 2 19, and upper urceolus 5 has air inlet port 17.
Electromagnetic valve 3 is fixed in top connection 2 by cable connection joint 1, contact-making switch 4, piston 7 are positioned at urceolus 5 inner chamber, upper spindle 6 is through piston 7 cock body, the spring 3 of electromagnetic valve is withstood in termination, the upper piston rod 9 of piston is positioned at lower urceolus 10, lower piston rod 11 is positioned at lower urceolus 10 and push rod 13, and lower piston club head connects bridging plug jointing 14, and bridging plug 15 is connected with push rod 13, bridging plug jointing 14.
For preventing joint leakage body, there is O-ring seals in top connection 2 and upper urceolus 5, piston 7, middle urceolus 8, upper piston rod 9, lower urceolus 10, lower piston rod 11 joint portion.
When adopting the setting tool seat of electromagnetic-valve control type bridging plug to seal, be energized from ground by cable 16, open electromagnetic valve 3, the suction of electromagnetic valve makes upper spindle 6 move, and open oil cavity channel, oil cavity channel is opened rear annulus fluid and is entered in middle urceolus 8 and lower urceolus 10 respectively from inlet one 18,2 19, pressure differential piston 7 between the liquid-to-air chamber of coming in is up, piston upwards drives bridging plug jointing 14 to move upward, bridging plug jointing is connected with the center-pole of bridging plug 15, and bridging plug center-pole up compression bridge plug seat sealing makes bridging plug setting.Bridge plug seat be honored as a queen piston continue up until bridging plug jointing and bridging plug center-pole depart from, realize bridging plug and give up.
The passage opened because of electromagnetic valve in instrument is narrow, limit the speed of annular fluid from inlet entering tool, make bridging plug setting procedure comparatively steady, thus overcome the setting instrument of gunpowder deflagration type and shake large defect, carrying out protecting perforating appliances to be badly shaken when connection is done with perforation; Control line to extreme position at piston movement, realizes bridging plug when giving up, can touch a contact-making switch, make wire break, and ground can to judge to give up whether success according to pilot break-make, easy to operate.
With reference to Fig. 3,4, top connection 2 one end of the setting instrument of rupture disc controlled type bridging plug of the present invention is threaded with cable connection joint 1, one end is threaded with upper urceolus 5, middle urceolus 8 one end is threaded with upper urceolus 5, one end is threaded with lower urceolus 10, lower urceolus 10 is threaded with nut 12, push rod 13, and there is O-ring seals junction.Rupture disk 20 is threaded with upper urceolus 5 end, and middle urceolus 8, lower urceolus 10 have inlet 1, inlet 2 19, and upper urceolus 5 has air inlet port 17.
Contact-making switch 4 is positioned at top connection 2, piston 7 is positioned at urceolus 5 inner chamber, upper spindle 6 is through piston 7 cock body, the spring 3 in top connection is withstood in termination, the upper piston rod 9 of piston is positioned at lower urceolus 10, lower piston rod 11 is positioned at lower urceolus 10 and push rod 13, and lower piston club head connects bridging plug jointing 14, and bridging plug 15 is connected with push rod 13, bridging plug jointing 14.
When adopting the setting tool seat of rupture disc controlled type bridging plug to seal, be energized from ground by cable 16, annular pressure is applied from ground, after annular pressure reaches the limiting value of rupture disk, open rupture disk pressure channel, rupture disk pressure channel opens rear annulus fluid from inlet 1, inlet 2 19 to enter in the middle urceolus 8 of the setting instrument of rupture disc controlled type bridging plug and lower urceolus 10 respectively, pressure differential piston 7 between the liquid-to-air chamber of coming in is up, piston upwards drives bridging plug jointing 14 to move upward, bridging plug jointing is connected with the center-pole of bridging plug 15, bridging plug center-pole up compression bridge plug seat sealing makes bridging plug setting.Bridge plug seat be honored as a queen piston continue up until bridging plug jointing and bridging plug center-pole depart from, realize bridging plug and give up.
The passage opened because of rupture disk in instrument is narrow, limit the speed of annular fluid from inlet entering tool, make bridging plug setting procedure comparatively steady, thus overcome the setting instrument of gunpowder deflagration type and shake large defect, carrying out protecting perforating appliances to be badly shaken when connection is done with perforation; Control line to extreme position at piston movement, realizes bridging plug when giving up, can touch a contact-making switch, make wire break, and ground can to judge to give up whether success according to pilot break-make, easy to operate.
With reference to Fig. 5,6, top connection 2 one end of the setting instrument of clock control formula bridging plug of the present invention is threaded with cable connection joint 1, one end is threaded with upper urceolus 5, middle urceolus 8 one end is threaded with upper urceolus 5, one end is threaded with lower urceolus 10, lower urceolus 10 is threaded with nut 12, push rod 13, and there is O-ring seals junction.Middle urceolus 8, lower urceolus 10 have inlet 1, inlet 2 19, and upper urceolus 5 has air inlet port 17.
Contact-making switch 4 is positioned at top connection 2, piston 7 is positioned at urceolus 5 inner chamber, upper spindle 6 is through piston 7 cock body, termination is threaded with clock 22, the upper piston rod 9 of piston is positioned at lower urceolus 10, lower piston rod 11 is positioned at lower urceolus 10 and push rod 13, and lower piston club head connects bridging plug jointing 14, and bridging plug 15 is connected with push rod 13, bridging plug jointing 14.
For preventing joint leakage body, there is O-ring seals in top connection 2 and upper urceolus 5, piston 7, middle urceolus 8, upper piston rod 9, lower urceolus 10, lower piston rod 11 joint portion.
When adopting the setting tool seat of clock control formula bridging plug to seal, be energized from ground by cable 16, start clock 22, clock utilizes screw thread to drive upper spindle 6 to move, upper spindle 6 moves opens oil cavity channel, oil cavity channel is opened rear annulus fluid and is entered in middle urceolus 8 and lower urceolus 10 respectively from inlet one 18,2 19, pressure differential piston 7 between the liquid-to-air chamber of coming in is up, piston upwards drives bridging plug jointing 14 to move upward, bridging plug jointing is connected with the center-pole of bridging plug 15, and bridging plug center-pole up compression bridge plug seat sealing makes bridging plug setting.Bridge plug seat be honored as a queen piston continue up until bridging plug jointing and bridging plug center-pole depart from, realize bridging plug and give up.
The passage opened because of clock in instrument is narrow, limit the speed of annular fluid from inlet entering tool, make bridging plug setting procedure comparatively steady, thus overcome the setting instrument of gunpowder deflagration type and shake large defect, carrying out protecting perforating appliances to be badly shaken when connection is done with perforation; Control line to extreme position at piston movement, realizes bridging plug when giving up, can touch a contact-making switch, make wire break, and ground can to judge to give up whether success according to pilot break-make, easy to operate.
Claims (4)
1. utilize the method for the setting tool seat envelope of pressure reduction bridging plug, it is characterized in that concrete steps are as follows:
1) open the setting instrument oil cavity channel of bridging plug, annulus fluid enters the setting instrument of bridging plug in urceolus and lower urceolus from bridging plug setting instrument inlet,
2) the pressure differential piston stroking upward between the liquid-to-air chamber of coming in, piston upwards drives bridging plug jointing to move upward, and bridging plug jointing is connected with the center-pole of bridging plug, and bridging plug center-pole up compression bridge plug seat sealing makes bridging plug setting,
3) bridge plug seat is honored as a queen, and piston continuation is up to be realized bridging plug give up until bridging plug jointing and bridging plug center-pole departs from,
4) realize after bridging plug gives up, touch contact-making switch, contact-making switch has wire to be connected with on the control panel on ground, and successfully whether ground judge to give up according to pilot break-make;
The setting instrument of bridging plug used is the setting instrument of electromagnetic-valve control type bridging plug, the setting instrument of rupture disc controlled type bridging plug or the setting instrument of clock control formula bridging plug;
Top connection one end of the setting instrument of electromagnetic-valve control type bridging plug used is threaded with cable connection joint, one end is threaded with upper urceolus, middle urceolus one end is threaded with upper urceolus, one end is threaded with lower urceolus, lower urceolus is threaded with nut, push rod, there is O-ring seals junction, in, lower urceolus has inlet one, two;
Upper urceolus has air inlet port, electromagnetic valve is fixed in top connection by cable connection joint, contact-making switch is positioned at top connection, piston is positioned at upper outside tube inner chamber, and upper spindle is through piston cock body, and the spring of electromagnetic valve is withstood in termination, the upper piston rod of piston is positioned at lower urceolus, lower piston rod is positioned at lower urceolus and push rod, and lower piston club head connects bridging plug jointing, and bridging plug center-pole is connected with bridging plug jointing;
Top connection one end of the setting instrument of rupture disc controlled type bridging plug used is threaded with cable connection joint, one end is threaded with upper urceolus, middle urceolus one end is threaded with upper urceolus, one end is threaded with lower urceolus, lower urceolus is threaded with nut, push rod, and there is O-ring seals junction, and rupture disk is threaded in upper urceolus end, middle urceolus, lower urceolus have inlet one, inlet two, and upper urceolus has air inlet port;
Contact-making switch is positioned at top connection, piston is positioned at upper outside tube inner chamber, upper spindle is through piston cock body, spring is withstood in termination, the upper piston rod of piston is positioned at lower urceolus, lower piston rod is positioned at lower urceolus and push rod, and lower piston club head connects bridging plug jointing, and bridging plug center-pole is connected with bridging plug jointing;
Top connection one end of the setting instrument of clock control formula bridging plug used is threaded with cable connection joint, one end is threaded with upper urceolus, middle urceolus one end is threaded with upper urceolus, one end is threaded with lower urceolus, lower urceolus is threaded with nut, push rod, there is O-ring seals junction, and middle urceolus, lower urceolus have inlet one, inlet two, and upper urceolus has air inlet port;
Contact-making switch is positioned at top connection, piston is positioned at upper outside tube inner chamber, upper spindle is through piston cock body, termination is threaded with clock, the upper piston rod of piston is positioned at lower urceolus, lower piston rod is positioned at lower urceolus and push rod, and lower piston club head connects bridging plug jointing, and bridging plug center-pole is connected with bridging plug jointing.
2. the method utilizing the setting tool seat envelope of pressure reduction bridging plug according to claim 1, it is characterized in that being energized to the setting instrument of electromagnetic-valve control type bridging plug from ground by cable, open electromagnetic valve, the suction of electromagnetic valve makes upper spindle move and opens oil cavity channel, and oil cavity channel is opened rear annulus fluid and to be entered the setting instrument of electromagnetic-valve control type bridging plug in urceolus and lower urceolus respectively from inlet.
3. the method utilizing the setting tool seat envelope of pressure reduction bridging plug according to claim 1, it is characterized in that pressurizeing to the setting instrument of rupture disc controlled type bridging plug from ground by annular space, after annular pressure reaches the limiting value of rupture disk, rupture disk pressure channel is opened, and after opening rupture disk feed pathway, annulus fluid to enter the setting instrument of rupture disc controlled type bridging plug in urceolus and lower urceolus from inlet respectively.
4. the method utilizing the setting tool seat envelope of pressure reduction bridging plug according to claim 1, it is characterized in that being energized to the setting instrument of clock control formula bridging plug from ground by cable, start clock, the clockwork spring of clock utilizes screw thread to drive upper spindle to move, upper spindle moves opens oil cavity channel, and oil cavity channel is opened rear annulus fluid and to be entered the setting instrument of clock control formula bridging plug in urceolus and lower urceolus respectively from inlet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210112437.5A CN102635328B (en) | 2012-04-16 | 2012-04-16 | Method for running bridge plug sitting tool by means of differential pressure and bridge plug sitting tool utilized by same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210112437.5A CN102635328B (en) | 2012-04-16 | 2012-04-16 | Method for running bridge plug sitting tool by means of differential pressure and bridge plug sitting tool utilized by same |
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| CN102635328A CN102635328A (en) | 2012-08-15 |
| CN102635328B true CN102635328B (en) | 2015-03-04 |
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| CN102852476B (en) * | 2012-09-15 | 2015-09-09 | 中国石油集团西部钻探工程有限公司 | Down-hole stretching tool |
| CN105041258B (en) * | 2015-07-16 | 2017-11-17 | 重庆科技学院 | Deep-well bridge plug seat seal apparatus based on minor diameter motor |
| CN106703745B (en) * | 2015-11-18 | 2019-10-29 | 中国石油化工股份有限公司 | A kind of pumped type bridge plug |
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| CN108060910A (en) * | 2016-11-07 | 2018-05-22 | 天津汇铸石油设备科技有限公司 | Circulating valve |
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| CN113931885A (en) * | 2021-10-13 | 2022-01-14 | 重庆航天工业有限公司 | Electro-hydraulic setting tool for oil-gas well and stroke detection method |
| CN115263234B (en) * | 2022-08-30 | 2023-05-12 | 大庆长垣能源科技有限公司 | Pressure-controlled underground switch bridge plug |
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| CN102635328A (en) | 2012-08-15 |
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