CN106593392A - Putting type impulse plugging releasing effect-improving technique for oil and gas well - Google Patents
Putting type impulse plugging releasing effect-improving technique for oil and gas well Download PDFInfo
- Publication number
- CN106593392A CN106593392A CN201710001085.9A CN201710001085A CN106593392A CN 106593392 A CN106593392 A CN 106593392A CN 201710001085 A CN201710001085 A CN 201710001085A CN 106593392 A CN106593392 A CN 106593392A
- Authority
- CN
- China
- Prior art keywords
- gunpowder
- hanger
- instrument
- cable
- long delay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
Abstract
The invention discloses a putting type impulse plugging releasing effect-improving technique for an oil and gas well. The problems that cables are burned due to ignition in a traditional technique, and cable cores are broken off when the cables leap upwards are solved. According to the putting type impulse plugging releasing effect-improving technique for the oil and gas well, a delivering recycling tool downhole instrument, gunpowder hanging equipment, a long-time-delayed exploder and a fracturing propellent grain are conveyed to a construction layer section by adopting a cable conveying mode. The gunpowder hanging equipment is anchored on a casing pipe by adopting an up-lifting and down-putting mode. The delivering recycling tool downhole instrument is driven to be separated from the upper end of the gunpowder hanging equipment, the cables and the delivering recycling tool downhole instrument are pulled out, and meanwhile, an inner passageway of the gunpowder hanging equipment is opened. Downhole liquid column pressure is acted on the upper end face of a piston of the long-time-delayed exploder through the inner passageway, a pin bolt is cut off, a firing pin moves downwards, the long-time-delayed exploder is triggered, the cables and the delivering recycling tool downhole instrument are pulled out during the period of delaying, and the fracturing propellent grain is ignited after delaying, so that the circumstances that the cables are burned when gunpowder burns, and the cable cores are broken off due to the fact that the cables leap upwards and knotted are avoided.
Description
Technical field
The present invention relates to a kind of cable transfer pulse release construction technology.
Background technology
Traditional cable conveying pulse release is mainly sequentially connected electric igniter, high energy gas pressure when constructing using cable lower
Split bullet（Pressure break powder column）Form of construction work.By cable transfer to construction target zone（Oil reservoir）Afterwards, ground is powered, electric current Jing cables
Triggering lighter, igniter blast lights high energy gas fracture bomb.High energy gas fracture bomb burning produces high temperature and high pressure gas edge
The pulse loading of oil reservoir perforation tunnel, near wellbore formation crack is produced, and so as to increase the percolation ability of near wellbore formation, reaches oil well increasing
Product, the purpose of intensified injection of wells.
It is found that in construction in place of some shortcomings using the technique.On the one hand, when high energy gas fracture bomb burns, by
The impulsive force that high temperature and high pressure gas are produced is larger, makes to be altered on cable, so as to cause cable to knot in well or a large amount of cable winds
On well head, the even upper km cable breakdown of rice up to a hundred is made, so as to cause larger economic loss；On the other hand, powder burning
The high temperature meeting ablation cable of generation, causes cable to be burnt；Meanwhile, cable is scurried out in a large number from well head, and to ground construction, personnel also deposit
In certain potential safety hazard.
The content of the invention
The technical problem to be solved is the damage electricity for carrying out existing when traditional cable conveying pulse release is constructed
Alter on cable and cable to the well head security hidden trouble that nearby workmen produces.The use of present invention process, can light
Cable is taken out from well before pressure break powder column, it is ensured that without cable in well during igniting, thus cable will not be damaged, it also avoid electricity
The danger brought to well head workmen is altered on cable.
For achieving the above object, the technical solution used in the present invention is：A kind of Oil/gas Well releasing type pulse release
Synergistic process, the process duct string is followed successively by from top to bottom cable, fast cable joint, magnetic localizer, delivery recovery instrument well
Lower instrument, gunpowder hanger, long delay initiator, pressure break powder column；During construction, recovery instrument well will be delivered using cable transfer mode
Lower instrument, gunpowder hanger, long delay initiator, pressure break powder column are delivered to construction interval, the mode of putting is put in employing and hangs gunpowder
Hanging device is anchored on sleeve pipe, and now the long delay initiator of its underpart and bottom pressure break powder column are suspended in therewith on sleeve pipe, so
Ground instrument is driven afterwards, will be delivered recovery instrument downhole instrument and is separated with gunpowder hanger upper end, meanwhile, gunpowder hanger inner passage
Open, head of liquid acts on long delay initiator piston upper surface by gunpowder hanger inner passage in well, cuts off pin,
Piston driving striker is moved down, and triggers long delay initiator, arranges long delay initiator delay time, during time delay, by electricity in well
Cable, delivery recovery instrument go out from well, and after time delay terminates, initiator is under fire and lights pressure break powder column, and powder column burning produces high temperature
High pressure gas fracturing oil reservoir, after pressure break, then reclaims gunpowder hanger, long delay by entering to deliver recovery instrument downhole instrument under cable
Initiator.
It is preferred that long delay initiator delay time is 25 minutes.
The employing above puts the mode of putting and gunpowder hanger is anchored on sleeve pipe, particularly determines gunpowder hanger anchor
After depthkeeping degree, 0.5 meter of portable cable is first gone up, brake pad drives feather key by the short groove tip motions on central canal to short bottom land end, this
When anchor mechanism slips also move down into central canal bottom with brake pad, then descend 1 meter of payout again, brake pad drives feather key by
Short bottom land end on heart pipe is shifted to elongated slot, and after 1 meter of lower payout, slips is with the elongated slot top moved on on brake pad on central canal
End, now slips is anchored on sleeve pipe by pyramidal support, and therewith gunpowder hanger hangs long delay initiator and pressure break powder column
On sleeve pipe.
The delivery recovery instrument downhole instrument is separated with gunpowder hanger upper end, and particularly ground instrument drives to deliver and reclaims
Instrument downhole instrument motor is rotated forward, and Motor drive shaft joint drives leading screw to rotate forward makes claw and seal shaft move upwards, now claw
Depart from vertebral body fishing head, seal shaft departs from from gunpowder hanger inner passage opens gunpowder hanger inner passage, delivers and reclaims
Instrument downhole instrument is in released state with gunpowder hanger.
Beneficial effects of the present invention：The technique can reach well when cable transfer pulse release Synergistic technique pressure break powder column burns
The interior purpose without cable, so as to avoiding the High Temperature High Pressure ablation cable produced during the burning of pressure break powder column and causing to alter knotting on cable
The problems such as.
Description of the drawings
Fig. 1 is that instrument downhole instrument structural representation is reclaimed in the delivery of the present invention.
In figure：1- magnetic location instrument joints, 2- motors, 3- motor bases, 4- shaft joints, 5- leading screws, 6- claws.
Fig. 2 is that instrument downhole instrument bottom, gunpowder hanger, long delay initiator top connection knot are reclaimed in the delivery of the present invention
Structure schematic diagram.
In figure：7- seal shafts, 8- fishing heads, 9- inner passages, 10- vertebral bodys, 11- central canals, 12- slips, 13- frictions
Block, 14- springs, 15- feather keys.
Fig. 3 is the long delay initiator structural representation of the present invention.
In figure：16- pistons, 17- shear pins, 18- strikers, 19- ignition charges, 20- extension ropes, 21- igniting gunpowders, 22- are fiery
Medicine joint.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described further：
A kind of Oil/gas Well releasing type pulse release synergistic process, it is quick that the process duct string is followed successively by from top to bottom cable, cable
Joint, magnetic location instrument, delivery recovery instrument downhole instrument, gunpowder hanger, long delay initiator, pressure break powder column.Wherein cable,
Fast cable joint, magnetic location instrument are daily perforation indispensability instrument, and pressure break powder column is daily cable transfer pulse release technique
Indispensable instrument, it is existing device to deliver recovery instrument downhole instrument, gunpowder hanger, long delay initiator.
When being embodied as the technique, carry out in accordance with the following steps：
1st, process duct series winding connects
Fast cable joint and magnetic location instrument and delivery recovery instrument downhole instrument screwed connection successively；Deliver recovery instrument down-hole
The Elastic Steel pawl of instrument lower end is engaged in the cone fishing head draw-in groove of gunpowder hanger upper end, gunpowder hanger lower end and long delay
The screwed connection of initiator upper end, gunpowder joint and the pressure break powder column screwed connection of long delay initiator lower end.
2nd, the grappling of gunpowder hanger
Cable craft pipe string is delivered to after target zone, and by magnetic location instrument depth localization is carried out, and determines gunpowder hanger grappling
After depth, first go up 0.5 meter of portable cable, because gunpowder hanger spring 14 be applied to brake pad 13 elastic force effect, brake pad 13 with
All the time there is frictional force between casing wall, under this force, brake pad 13 drives feather key 15 by the short groove on central canal 11
Tip motions to short bottom land end, now anchor mechanism slips 12 also move down into the bottom of central canal 11 with brake pad 13, then again under
1 meter of payout, also due to the frictional force effect between brake pad 13 and casing wall, the drive feather key 15 of brake pad 13 is by central canal
Short bottom land end on 11 is shifted to elongated slot, and after 1 meter of lower payout, slips 12 is with the elongated slot moved on on brake pad 13 on central canal 11
Top, now slips 12 strutted by vertebral body 10 and be anchored on sleeve pipe, therewith gunpowder hanger is by long delay initiator and pressure break medicine
Post is suspended on sleeve pipe.
3rd, deliver recovery instrument downhole instrument and gunpowder hanger departs from
After gunpowder hanger grappling, ground instrument drives delivery recovery instrument downhole instrument motor 2 to rotate forward, and motor 2 drives the band of shaft joint 4
Dynamic leading screw 5 is rotated forward makes claw 6 and seal shaft 7 move upwards, and now claw 6 departs from vertebral body fishing head 8, and seal shaft 7 is outstanding from gunpowder
Gunpowder hanger inner passage 9 is opened in the disengaging of hanging device inner passage 9, is delivered recovery instrument downhole instrument and is in gunpowder hanger and divides
From state.
4th, rise and cable, trigger pressure break powder column
Recovery instrument downhole instrument is delivered with gunpowder hanger after separating, the liquid column hydrostatic pressure of liquid is hung by gunpowder in well
Device inner passage 9 acts on the upper surface of long delay initiator piston 16, when liquid column hydrostatic pressure is more than 5 MPas, on piston 16
Shear pin 17 is cut off, and piston 16 drives striker 18 to move down, and striker 18 clashes into ignition charge 19 lights extension rope 20, and this duration prolongs
When initiator enter the delay stage of 25 minutes, in this section of delay time, have grace time by cable, magnetic location instrument and throwing
Send the downhole instrument that puts the tools away back to take out from well, after time delay 25 minutes, extension rope 20 lights igniting gunpowder 21, igniting gunpowder 21 is under fire point again
Combustion pressure break powder column, pressure break powder column produces High Temperature High Pressure and carries out pressure break de-plugging to interval of constructing.
5th, downhole tool is reclaimed
Delivery recovery instrument downhole instrument motor 2 is inverted on ground by manipulating ground instrument, now motor 2 drives the band of shaft joint 4
Dynamic leading screw 5 makes claw 6 move downwardly to lower end, completes claw 6 and resets, and now delivers recovery instrument downhole instrument in salvaging shape
State.Again by entering to deliver recovery instrument downhole instrument under cable, when delivery recovery instrument downhole instrument claw 6 is touched sleeve pipe is anchored on
After gunpowder hanger upper end fishing head 8 on wall, reclaim under instrument downhole instrument action of gravity in upper end cable and delivery, claw 6
It is engaged with the draw-in groove of fishing head 8, then plays out gunpowder hanger and long delay initiator, completes to gunpowder hanger and long delay
The recovery of initiator, construction is finished.
Claims (4)
1. a kind of Oil/gas Well releasing type pulse release synergistic process, it is fast that the process duct string is followed successively by from top to bottom cable, cable
Quick coupling, magnetic localizer, delivery recovery instrument downhole instrument, gunpowder hanger, long delay initiator, pressure break powder column；Its feature
It is：Recovery instrument downhole instrument, gunpowder hanger, long delay initiator, pressure break powder column will be delivered using cable transfer mode defeated
Construction interval is delivered to, the mode of putting is put in employing gunpowder hanger is anchored on sleeve pipe, now the long delay detonation of its underpart
Device and bottom pressure break powder column are suspended in therewith on sleeve pipe, then drive ground instrument, will deliver recovery instrument downhole instrument and gunpowder
Hanger upper end separates, meanwhile, gunpowder hanger inner passage is opened, and head of liquid passes through gunpowder hanger inner passage in well
Long delay initiator piston upper surface is acted on, pin is cut off, piston driving striker is moved down, trigger long delay initiator, arranged
Long delay initiator delay time, during time delay, well inner cable, delivery recovery instrument is gone out from well, after time delay terminates, is risen
Quick-fried device is under fire and lights pressure break powder column, and powder column burning produces high temperature and high pressure gas pressure break oil reservoir, after pressure break, then by entering to throw under cable
Send the downhole instrument that puts the tools away back to and reclaim gunpowder hanger, long delay initiator.
2. Oil/gas Well according to claim 1 releasing type pulse release synergistic process, it is characterised in that：Setting long delay
Initiator delay time is 25 minutes.
3. Oil/gas Well according to claim 1 releasing type pulse release synergistic process, it is characterised in that：It is described using upper
Put the mode of putting gunpowder hanger is anchored on sleeve pipe, particularly determine after gunpowder hanger anchoring depth, first above carry electricity
0.5 meter of cable, brake pad drives feather key by the short groove tip motions on central canal to short bottom land end, now anchor mechanism slips also with
Brake pad moves down into central canal bottom, then descends 1 meter of payout, brake pad to drive feather key to be changed by the short bottom land end on central canal again
To elongated slot, after 1 meter of lower payout, slips is supportted with the elongated slot top moved on on brake pad on central canal, now slips by vertebral body for position
Open and be anchored on sleeve pipe, therewith gunpowder hanger is suspended on long delay initiator and pressure break powder column on sleeve pipe.
4. Oil/gas Well according to claim 1 releasing type pulse release synergistic process, it is characterised in that：It is described to deliver back
The downhole instrument that puts the tools away is separated with gunpowder hanger upper end, and particularly ground instrument drives and delivering recovery instrument downhole instrument motor just
Turn, Motor drive shaft joint drives leading screw to rotate forward makes claw and seal shaft move upwards, now claw departs from vertebral body fishing head, close
Envelope axle departs from from gunpowder hanger inner passage opens gunpowder hanger inner passage, delivers recovery instrument downhole instrument and hangs with gunpowder
Hanging device is in released state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710001085.9A CN106593392A (en) | 2017-01-03 | 2017-01-03 | Putting type impulse plugging releasing effect-improving technique for oil and gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710001085.9A CN106593392A (en) | 2017-01-03 | 2017-01-03 | Putting type impulse plugging releasing effect-improving technique for oil and gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106593392A true CN106593392A (en) | 2017-04-26 |
Family
ID=58582330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710001085.9A Pending CN106593392A (en) | 2017-01-03 | 2017-01-03 | Putting type impulse plugging releasing effect-improving technique for oil and gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593392A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654213A (en) * | 2017-10-09 | 2018-02-02 | 大庆金祥寓科技有限公司 | A kind of high energy negative pressure deblocking device |
| CN115405279A (en) * | 2022-08-26 | 2022-11-29 | 武汉华工融军科技有限公司 | Hydraulic pulse shock wave petroleum yield increasing device |
| CN117365420A (en) * | 2023-12-05 | 2024-01-09 | 大庆金祥寓科技有限公司 | Full non-explosive energy release blocking removal process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012162308A3 (en) * | 2011-05-26 | 2013-03-28 | Baker Hughes Incorporated | Select-fire stackable gun system |
| CN103883294A (en) * | 2014-01-10 | 2014-06-25 | 大庆红祥寓科技有限公司 | Lifting and placing type gunpowder hanger |
| CN204024610U (en) * | 2014-09-05 | 2014-12-17 | 辽宁华丰民用化工发展有限公司 | The two time delay pressure detonator of getting angry of a kind of oil well |
| CN204212757U (en) * | 2014-10-21 | 2015-03-18 | 中国石油天然气股份有限公司 | long delay priming device |
| CN104563932A (en) * | 2014-01-24 | 2015-04-29 | 大庆红祥寓科技有限公司 | Depth-positioning projecting tool |
-
2017
- 2017-01-03 CN CN201710001085.9A patent/CN106593392A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012162308A3 (en) * | 2011-05-26 | 2013-03-28 | Baker Hughes Incorporated | Select-fire stackable gun system |
| CN103883294A (en) * | 2014-01-10 | 2014-06-25 | 大庆红祥寓科技有限公司 | Lifting and placing type gunpowder hanger |
| CN104563932A (en) * | 2014-01-24 | 2015-04-29 | 大庆红祥寓科技有限公司 | Depth-positioning projecting tool |
| CN204024610U (en) * | 2014-09-05 | 2014-12-17 | 辽宁华丰民用化工发展有限公司 | The two time delay pressure detonator of getting angry of a kind of oil well |
| CN204212757U (en) * | 2014-10-21 | 2015-03-18 | 中国石油天然气股份有限公司 | long delay priming device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654213A (en) * | 2017-10-09 | 2018-02-02 | 大庆金祥寓科技有限公司 | A kind of high energy negative pressure deblocking device |
| CN107654213B (en) * | 2017-10-09 | 2023-12-22 | 大庆金祥寓科技有限公司 | High-energy negative pressure blocking remover |
| CN115405279A (en) * | 2022-08-26 | 2022-11-29 | 武汉华工融军科技有限公司 | Hydraulic pulse shock wave petroleum yield increasing device |
| CN115405279B (en) * | 2022-08-26 | 2023-09-15 | 武汉华工融军科技有限公司 | Liquid electric pulse shock wave petroleum yield increasing device |
| CN117365420A (en) * | 2023-12-05 | 2024-01-09 | 大庆金祥寓科技有限公司 | Full non-explosive energy release blocking removal process |
| CN117365420B (en) * | 2023-12-05 | 2024-02-27 | 大庆金祥寓科技有限公司 | Full non-explosive energy release blocking removal process |
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170426 |