CN105201435B - Explosion releasing and releasing method for cable transportation clustering perforation operation - Google Patents
Explosion releasing and releasing method for cable transportation clustering perforation operation Download PDFInfo
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- CN105201435B CN105201435B CN201510596421.XA CN201510596421A CN105201435B CN 105201435 B CN105201435 B CN 105201435B CN 201510596421 A CN201510596421 A CN 201510596421A CN 105201435 B CN105201435 B CN 105201435B
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- 238000004880 explosion Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 17
- 210000000078 claw Anatomy 0.000 claims abstract description 73
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 17
- 238000012546 transfer Methods 0.000 claims description 15
- 230000005662 electromechanics Effects 0.000 claims description 9
- 238000004064 recycling Methods 0.000 claims description 9
- 210000002445 nipple Anatomy 0.000 claims description 8
- 230000005713 exacerbation Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 4
- 230000037452 priming Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005474 detonation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention discloses a cable transportation clustering perforation operation explosion releasing and releasing method, which comprises the following steps: a. sequentially connecting a fishing spear, a weighting device, a magnetic positioner, a conversion joint, an electromechanical release device, a multi-stage perforating gun string and a bridge plug tool, wherein the pipe string is connected with a cable and is lowered into a well; b. if the perforating gun string needs to be discarded when the perforating gun string is blocked in the construction process, an electric signal is sent to the selecting and sending block, a detonator and a detonating cord in the electromechanical releasing device are detonated, the weak point on the weak point explosion rod is exploded, well liquid enters an inner cavity of the electromechanical releasing device through a through hole in an explosion bypass, a piston rod is pushed to move downwards, the claw end of a releasing claw is recovered, and the releasing sleeve and the perforating gun string are released under the action of the self gravity of the pipe string or the external cable pulling force, so that the releasing and releasing are realized. The invention can increase the tension of the cable weak point, and can ensure that the weight of the cable and the tool string in the well is not less than the pressure load of the well mouth under the condition of releasing the clamp and releasing the hand, thereby ensuring the safety of the cable.
Description
Technical field
The present invention relates to a kind of cable transfer sub-clustering perforating job explosion unfreezings to give up method, belongs to conventional and unconventional oil
Gas well development technique field.
Background technology
Sub-clustering perforating technology has obtained sizable application in untraditional reservoir exploration and development, this technique need into
Row wellheadpressure operation, when operation, need to increase the weight of downhole pipe string, ensure pipe string can be in straight well section by dead weight
Operation.
Sub-clustering perforation is in the straight well, horizontal well operation process of complex hole condition, the casing deformation of one side straight well, or pumping
Formation sand production, the chemical sediment of level of operation well precipitate and the reasons such as shaft deformation, well track are irregular, on the other hand
Weakness such as is not slipped out of the hand at the factors when cable sets bridge plug, and pipe string can be often encountered in operation and meets card phenomenon, can not be by pipe string out of well
It rises, needs to apply drag load to cable by ground winch and pull cable from the weakness of setting, but due to wellheadpressure,
Once cable is conducted oneself with dignity and well head pressure load imbalance, cable quickly outer under the action of well head pressure will be spat, and coil of cable is caused
It is bent and generate and scrap, or even generate secondary engineering accident.In addition to this, in perforating job be arranged cable weakness pulling force than
Cable body pulling force is small, is unfavorable for meeting card accident under processing well.
Although prior art discloses some releasing devices, as China Patent Publication No. 204252892U discloses a kind of electricity
Cable transmission perforation electromechanics releasing device, publication date 2015-04-08, for another example China Patent Publication No. 204252891U disclose
A kind of electromechanics is given up device of escaping, publication date 2015-04-08, but the above problem does not still solve.
Invention content
It is an object of the invention to overcome the above problem existing for existing sub-clustering perforating technology, a kind of cable transfer is provided
Sub-clustering perforating job explosion unfreezing is given up method, and the present invention can increase cable weakness pulling force, it is ensured that unfreezing is slipped out of the hand situation
Inner cable of going into the well adds the weight of tool string to ensure cable safety not less than well head pressure load, meets card in pipe string and realizes
Control is published on ground, avoids secondary engineering accident.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of cable transfer sub-clustering perforating job explosion unfreezing is given up method, which is characterized in that is included the following steps：
A, fishing spear, exacerbation, magnetic locator, crossover sub, electromechanical releasing device, multi-stage perforator rifle string and bridge are sequentially connected
Plug tool, the pipe string after connection and cable connection, go into the well；
If perforating gun string need to be lost by b, meeting card in work progress, electric signal is sent out to block is published, ignites electromechanical releasing device
In detonator and primacord, so that the weakness on weakness loading pole is blown up, well liquid is entered electromechanics and lost by the through-hole in bypass that explodes
Arm device inner cavity pushes piston rod to move downward, the recycling of the pawl end of elastic claw of slipping out of the hand, give up sleeve together with perforating gun string pipe string from
It is released under the action of body gravity or external cable pulling force, realizes that unfreezing is given up.
The invention also includes step c：It after realizing that unfreezing is given up, is arranged according to construction, carries out next step salvage.
The electromechanics releasing device includes explosion bypass, elastic claw of slipping out of the hand, elastic claw housing, give up sleeve and relay pipe nipple, institute
It states and is provided with through-hole in explosion bypass, elastic claw of slipping out of the hand one end is sealedly and fixedly connected with explosion bypass, and the sealing fixation of elastic claw housing is set
It sets and is slipping out of the hand in elastic claw, sleeve of giving up limit is connected to the elastic claw other end of slipping out of the hand, and sleeve one end of giving up is matched with the sealing of elastic claw housing
It closes, the other end is sealedly and fixedly connected with relay pipe nipple；It is provided with explosion connectivity structure in explosion bypass, is provided in elastic claw of slipping out of the hand
Solve card structure.
The explosion connectivity structure includes publishing block, detonator, primacord and weakness loading pole, publish block and cable connection and
It is fixed on weakness loading pole outer wall, primacord is arranged in weakness loading pole endoporus, and primacord is connect with detonator, thunder
Block connection is managed and publishes, the setting of weakness loading pole in explosion bypass, with explosion bypass inner wall sealing match by weakness loading pole both ends
It closes, corresponding to through-hole on weakness loading pole is provided with weakness, and when the weakness on weakness loading pole is blown up, well liquid is bypassed by exploding
On through-hole enter weakness loading pole endoporus.
The solution card structure includes the piston rod being arranged in elastic claw of slipping out of the hand, before unfreezing, piston rod outer wall and elastic claw of slipping out of the hand
Pawl end cooperation will give up sleeve limit；When well liquid enters weakness loading pole endoporus by the through-hole in bypass that explodes, push
Piston rod moves downward, and the pawl end recycling for elastic claw of slipping out of the hand, elastic claw of slipping out of the hand is detached with sleeve of giving up.
Described piston rod one end is provided with sealed guide column, and sealed guide column is fixed on piston rod by insulated enclosure plug
In inner cavity, the input terminal of sealed guide column is connect with the output line for publishing block, and the sealed guide column other end is connected to that publish block defeated
Enter on line.
The piston rod other end end set has the annular protrusion that the pawl end for the elastic claw that makes to slip out of the hand extends out, sleeve lining of giving up
On be provided with annular groove, before unfreezing, the pawl end for elastic claw of slipping out of the hand is expanded outwardly by the annular protrusion on piston rod, is embedded in and is lost
In the annular groove of gloves cylinder；When the pawl end that piston rod moves downwardly to elastic claw of slipping out of the hand is located above annular protrusion, bullet of slipping out of the hand
The pawl end recycling of pawl is detached with annular groove, and elastic claw of slipping out of the hand is detached with sleeve of giving up.
Four through-holes are arranged in the explosion bypass upper edge annular, and weakness corresponds to through-hole setting in a ring.
Advantage using the present invention is：
One, the present invention publishes detonation by ground in face of releasing tool power supply, and the energy that priming system detonation is formed blows up weakness,
It guides inside well liquid entering tool, realizes that hydraulic-driven is given up, it is at low cost.
Two, the present invention overcomes the weakness that electronics fuse cutout trepanning needs dedicated ground power supply unit and fuse cutout,
It is strong with existing tool and equipment compatibility.
Three, the present invention can connect enough exacerbations, realization and well head pressure counterweight balance, prevent coil of cable after slipping out of the hand
It is bent.
Four, elastic claw of slipping out of the hand in the present invention plays out well head with cable, bullet of giving up after domestic releasing device before overcoming
Pawl falls the risk for being unfavorable for salvaging in well.
More than elastic claw of five, giving up in the present invention exacerbation can be connected, overcome and aggravate to stay in the disadvantage in well in the past, make up
Pipe string meets card and can not salvage pipe string, reduces the economic loss of exacerbation.
Six, fishing socket of the present invention can be easy to salvaged tool and catch, and strong applicability, milling operation pipe string will not turn
It is dynamic.
Seven, the present invention is suitable for cable transmission operation, and explosion energy is big, and using hydraulic-driven, function of giving up is reliable.
Eight, the present invention is suitable for cable transmission sub-clustering perforation use, and releasing tool therein can adapt in conventional, unconventional
Other cable transmission perforation operations during oil-gas exploration and development, the releasing method of giving up is safe and reliable, without for electricity of going into the well
Cable presets weakness, enhances cable tensile strength, and the ontology of high-tensile is reserved for follow-up salvage, can be cable transfer
Sub-clustering perforating job provides strong safe practice guarantee.
To sum up, the present invention combines firer's explosion principle, sub-clustering perforating job principle, using explosion weakness, hydraulic drive
And the structural principle of elastic claw rebound, also can individually be controlled as ground firing panel in cable transfer sub-clustering perforation pipe string one
Grade can meet card etc. in pipe string and be started in special circumstances, realize unfreezing of giving up, while also be that base is accomplished fluently in follow-up salvage
Plinth.
Description of the drawings
Fig. 1 is the pipe string attachment structure schematic diagram in the present invention
Fig. 2 is the electromechanical releasing device structural schematic diagram in the present invention
In figure label for：1, cable, 2, fishing spear, 3, aggravate, 4, magnetic locator, 5, crossover sub, 6, electromechanics gives up dress
It sets, 7, multi-stage perforator rifle string, 8, bridge plug tool, 9, publish block, 10, detonator, 11, primacord, 12, weakness loading pole, 13, explosion
Bypass, 14, sealed guide column, 15, elastic claw of slipping out of the hand, 16, piston rod, 17, elastic claw housing, 18, sleeve of giving up, 19, relay pipe nipple.
Specific implementation mode
Embodiment 1
A kind of cable transfer sub-clustering perforating job explosion unfreezing is given up method, is included the following steps：
A, it is sequentially connected fishing head 2, aggravates 3, magnetic locator 4, crossover sub 5, electromechanical releasing device 6, multi-stage perforator rifle
String 7 and bridge plug tool 8, the pipe string after connection are gone into the well by being connect with cable 1；
If perforating gun string need to be lost by b, meeting card in work progress, electric signal is sent out to block 9 is published, ignites electromechanical releasing device
Detonator 10 in 6 and primacord 11, make the weakness on weakness loading pole 12 blow up, well liquid by explode bypass 13 on through-hole into
Enter 6 inner cavity of electromechanical releasing device, piston rod 16 pushed to move downward, the pawl end recycling of elastic claw of slipping out of the hand 15, give up sleeve 18 together with
Perforating gun string is released under the action of pipe string its own gravity or external cable pulling force, realizes that unfreezing is given up.
The invention also includes step c：It after realizing that unfreezing is given up, is arranged according to construction, carries out next step salvage.
In the present embodiment, the electromechanics releasing device 6 includes explosion bypass 13, elastic claw of slipping out of the hand 15, elastic claw housing 17, gives up
Sleeve 18 and relay pipe nipple 19, the explosion bypass and are provided with through-hole on 13,15 one end of elastic claw of slipping out of the hand and 13 sealing of explosion bypass
It is fixedly connected, the sealing of elastic claw housing 17, which is fixed at, slips out of the hand in elastic claw 15, and sleeve 18 of giving up limit is connected to elastic claw 15 of slipping out of the hand
The other end, 18 one end of sleeve of giving up coordinate with the sealing of elastic claw housing 17, and the other end is sealedly and fixedly connected with relay pipe nipple 19；Explosion
It is provided with explosion connectivity structure in bypass 13, solution card structure is provided in elastic claw of slipping out of the hand 15.
In the present embodiment, the explosion connectivity structure includes publishing block 9, detonator 10, primacord 11 and weakness loading pole 12,
It publishes the input line of block 9 and the cable core connection of cable and is fixed on 12 outer wall of weakness loading pole, 11 1 sections of peaces of primacord
In 12 endoporus of weakness loading pole, one section of 12 endoporus of the exposing weakness of primacord 11 loading pole is connect with detonator 10, detonator 10
The conducting wire of one end is connect with the detonator line for publishing block 9, and the setting of weakness loading pole 12 is in explosion bypass 13,12 liang of weakness loading pole
End coordinates with explosion 13 inner wall sealings of bypass, and corresponding to through-hole on weakness loading pole 12 is provided with weakness, when on weakness loading pole 12
Weakness when blowing up, well liquid enters 12 endoporus of weakness loading pole by the through-hole in bypass 13 that explodes.
In the present embodiment, the solution card structure includes the piston rod 16 being arranged in elastic claw 15 of slipping out of the hand, before unfreezing, piston rod
The pawl end of 16 outer walls and elastic claw 15 of slipping out of the hand coordinates the sleeve 18 that will give up to limit；When well liquid is entered by the through-hole to explode in bypass 13
When weakness 12 endoporus of loading pole, piston rod 16 is pushed to move downward, the recycling of the pawl end of elastic claw of slipping out of the hand 15, elastic claw of slipping out of the hand 15 with give up
Sleeve 18 detaches.
In the present embodiment, 16 one end of the piston rod is provided with sealed guide column 14, and sealed guide column 14 is close by insulating
Block head is fixed in 16 inner cavity of piston rod, and the input terminal of sealed guide column 14 is connect with the output line for publishing block 9, sealed guide
14 other end of column, which is connected to, to be published in 9 input line of block, subsequently into the sub-clustering perforating job of multi-stage perforator rifle string.
In the present embodiment, 16 other end end set of the piston rod has the convex annular that the pawl end for the elastic claw 15 that makes to slip out of the hand extends out
It rises, is provided with annular groove on 18 inner wall of sleeve of giving up, before unfreezing, the pawl end of elastic claw of slipping out of the hand 15 passes through the annular on piston rod 16
Protrusion expands outwardly, and is embedded in the annular groove for sleeve 18 of giving up；When piston rod 16 moves downwardly to the pawl for elastic claw 15 of slipping out of the hand
When end is located above annular protrusion, the pawl end recycling of elastic claw of slipping out of the hand 15 is detached with annular groove, elastic claw of slipping out of the hand 15 and sleeve of giving up
18 separation.
In the present embodiment, the explosion bypasses 13 upper edge annulars and four through-holes is arranged, and weakness corresponds to through-hole setting in a ring.
In the present embodiment, in addition to electromechanical releasing device, the prior art can be used in miscellaneous equipment.
Embodiment 2
As shown in Fig. 2, electromechanical releasing device its assembling steps in the present invention are：1）15 one end of the elastic claw that will slip out of the hand and explosion
13 connection of bypass, the other end are connect with elastic claw housing 17；2）To give up 18 one end of sleeve indentation elastic claw housing 17；3）Sealing is led
Terminal 14 is pressed into piston rod 16, involves both ends conducting wire, then is pressed into and is given up sleeve 18 until entering 17 inner cavity of elastic claw housing；4）Even
Connect the relay pipe nipple 19 to connect with first order perforating gun；5）Block 9 and detonator 10 and primacord 11 are published in connection, then with sealed guide
The lead of 14 one end of column is connected, embedded weakness loading pole 12, last whole loading explosion bypass 13.
Unfreezing of exploding when cable transfer sub-clustering perforating job is given up specific implementation step：1）It is sequentially connected fishing spear 2, aggravates
3, magnetic locator 4, crossover sub 5, electromechanical releasing device 6, multi-stage perforator rifle string 7, bridge plug tool 8；2）Pipe string after connection with
Cable 1 connects, and goes into the well.If perforating gun string need to be lost by meeting card in work progress, corresponded in sub-clustering perforation ground ignition control panel
Block 9 to be published in electromechanical releasing device sends out electric signal, detonating primer 10 and primacord 11, weakness is blown up on weakness loading pole 12,
Well liquid enters electromechanical releasing device inner cavity by the through-hole in bypass 13 that explodes, and pushes piston rod 16 to move downward, elastic claw of slipping out of the hand
15 pawl ends are recycled, and sleeve 18 of giving up is released together with perforating gun string under the action of pipe string its own gravity or external cable pulling force,
Realize that unfreezing is given up.It is arranged according to construction, carries out next step salvage.
Embodiment 3
It is stifled that electromechanical releasing device in the present invention includes weakness loading pole 12, explosion bypasses 13, piston rod 16, insulated enclosure
Head, elastic claw of slipping out of the hand 15, give up sleeve 18 and rifle string jointing.
Annular weakness, through-hole, priming system and conducting wire, priming system built in weakness loading pole 12 are designed on weakness loading pole 12
It is limited using screw, sealing structure is designed at weakness both ends, and for through-hole between two sealing structures, weakness loading pole 12 is placed in explosion
Inside bypass 13, weakness loading pole 12 has the function of resistance to compression 105MPa.
Explosion bypass 13 annular design, 4 through-holes, annular weakness is just consistent with lead to the hole site, female thread one end and igniter head
Connection；Insulated enclosure plug has to 16 insulation function of flexible piston rods, and normal power supply, signal transfer functions may be implemented, and pacifies
Mounted in 16 upper end of flexible piston rods.16 upper end of piston rod integrally has sealing function with insulated enclosure plug, and lower end limit is slipped out of the hand
Elastic claw, intermediate throughholes penetrated wire can move down under hydraulic drive.
The flexible elastic claw of 6-10 pieces is designed in elastic claw of slipping out of the hand 15, tensile strength reaches 10 tons or more, design sealing work(
Can, there is convex-concave assembly between elastic claw of slipping out of the hand 15 and sleeve 18 of giving up, pulling force is just realized under the limit of flexible piston rods 16
It transmits.
18 interior design of sleeve of giving up can accommodate the space of flexible piston rods 16 and conducting wire, and connection rifle series winding in lower end connects
Head, rifle string jointing can be connect with sub-clustering perforating gun string；Elastic claw of slipping out of the hand 15 matches connection with sleeve 18 of giving up, elastic claw of slipping out of the hand
15 limit it by flexible piston rods 16, ensure that relay is reliable, have radial unbending.
It is described electromechanics releasing device start explode unfreezing before have sealing function and prevent well liquid from entering tool inside,
And with pulling force transfer function without slipping out of the hand in advance；Once pipe string meets card, surface power supply detonating primer, detonator detonation firer
Product, priming system energy blow up weakness loading pole, and well liquid enters weakness loading pole endoporus from the through-hole of explosion bypass, and hydraulic pressure will live
Piston bar and insulated enclosure plug, which are integrally pushed down on and fallen into, gives up in sleeve, infinite place inside elastic claw of slipping out of the hand and projection bullet
Property restore, disengaging is given up sleeve recess, upper portable cable, and cable drive sleeve of giving up is released together with perforating gun string, realizes unfreezing
It gives up.
Claims (5)
- A kind of method 1. cable transfer sub-clustering perforating job explosion unfreezing is given up, which is characterized in that include the following steps：A, fishing spear, exacerbation, magnetic locator, crossover sub, electromechanical releasing device, multi-stage perforator rifle string and bridge plug work are sequentially connected Tool, the pipe string after connection and cable connection, go into the well；If perforating gun string need to be lost by b, meeting card in work progress, electric signal is sent out to block is published, is ignited in electromechanical releasing device Detonator and primacord make the weakness on weakness loading pole blow up, and well liquid enters electromechanics by the through-hole in bypass that explodes and gives up dress Inner cavity is set, piston rod is pushed to move downward, the pawl end recycling for elastic claw of slipping out of the hand, sleeve of giving up is together with perforating gun string in pipe string itself weight It is released under the action of power or external cable pulling force, realizes that unfreezing is given up；The electromechanics releasing device includes that explosion bypasses（13）, elastic claw of slipping out of the hand（15）, elastic claw housing, sleeve of giving up（18）And relay Pipe nipple（19）, the explosion bypass（13）On be provided with through-hole, elastic claw of slipping out of the hand（15）One end is bypassed with explosion（13）Sealing is fixed Connection, the sealing of elastic claw housing are fixed at elastic claw of slipping out of the hand（15）On, sleeve of giving up（18）Limit is connected to elastic claw of slipping out of the hand（15） The other end, sleeve of giving up（18）One end coordinates with the sealing of elastic claw housing, the other end and relay pipe nipple（19）It is sealedly and fixedly connected；It is quick-fried Fried bypass（13）It is inside provided with explosion connectivity structure, elastic claw of slipping out of the hand（15）Inside it is provided with solution card structure；The explosion connectivity structure includes publishing block（9）, detonator（10）, primacord（11）With weakness loading pole（12）, publish block （9）With cable connection and be fixed at weakness loading pole（12）On outer wall, primacord（11）It is arranged in weakness loading pole（12） In endoporus, and primacord（11）With detonator（10）Connection, detonator（10）With publish block（9）Connection, weakness loading pole（12）Setting It is bypassed in explosion（13）It is interior, weakness loading pole（12）Both ends are bypassed with explosion（13）Inner wall sealing coordinates, weakness loading pole（12） Upper corresponding through-hole is provided with weakness, when weakness loading pole（12）On weakness when blowing up, well liquid passes through bypass of exploding（13）On Through-hole enters weakness loading pole（12）Endoporus；The solution card structure includes being arranged in elastic claw of slipping out of the hand（15）Interior piston rod（16）, before unfreezing, piston rod（16）Outer wall with It slips out of the hand elastic claw（15）The cooperation of pawl end will give up sleeve（18）Limit；When well liquid is bypassed by exploding（13）On through-hole enter it is weak Point source explosion bar（12）When endoporus, piston rod is pushed（16）It moves downward, elastic claw of slipping out of the hand（15）Pawl end recycling, elastic claw of slipping out of the hand（15） With sleeve of giving up（18）Separation.
- The method 2. cable transfer sub-clustering perforating job explosion unfreezing according to claim 1 is given up, which is characterized in that also wrap Include step c：It after realizing that unfreezing is given up, is arranged according to construction, carries out next step salvage.
- The method 3. cable transfer sub-clustering perforating job explosion unfreezing according to claim 1 or 2 is given up, it is characterised in that： The piston rod（16）One end is provided with sealed guide column（14）, sealed guide column（14）It is fixed on work by insulated enclosure plug Stopper rod（16）In inner cavity, sealed guide column（14）Input terminal and publish block（9）Output line connection, sealed guide column（14）Separately One end, which is connected to, publishes block（9）In input line.
- The method 4. cable transfer sub-clustering perforating job explosion unfreezing according to claim 3 is given up, it is characterised in that：It is described Piston rod（16）Other end end set has and makes elastic claw of slipping out of the hand（15）The annular protrusion that extends out of pawl end, sleeve of giving up（18）Inner wall On be provided with annular groove, before unfreezing, elastic claw of slipping out of the hand（15）Pawl end pass through piston rod（16）On annular protrusion expand outwardly, It is embedded in sleeve of giving up（18）Annular groove in；Work as piston rod（16）Move downwardly to elastic claw of slipping out of the hand（15）Pawl end be located at ring When shape protrusion top, elastic claw of slipping out of the hand（15）Pawl end recycling detached with annular groove, elastic claw of slipping out of the hand（15）With sleeve of giving up（18） Separation.
- The method 5. cable transfer sub-clustering perforating job explosion unfreezing according to claim 4 is given up, it is characterised in that：It is described Explosion bypass（13）Four through-holes are arranged in upper edge annular, and weakness corresponds to through-hole setting in a ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510596421.XA CN105201435B (en) | 2015-09-18 | 2015-09-18 | Explosion releasing and releasing method for cable transportation clustering perforation operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510596421.XA CN105201435B (en) | 2015-09-18 | 2015-09-18 | Explosion releasing and releasing method for cable transportation clustering perforation operation |
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| CN105201435A CN105201435A (en) | 2015-12-30 |
| CN105201435B true CN105201435B (en) | 2018-07-24 |
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| CN109098678B (en) * | 2018-10-19 | 2024-01-26 | 中石化江汉石油工程有限公司 | Releasing nipple for horizontal well conveying tractor perforating tool |
| CN109899013A (en) * | 2019-02-11 | 2019-06-18 | 中国石油天然气股份有限公司 | Sand jam prevention device and method for horizontal well cable transmission hydraulic pumping tool |
| CN112780204A (en) * | 2019-11-07 | 2021-05-11 | 中国石油天然气股份有限公司 | Releasing device and releasing method |
| CN112196476A (en) * | 2020-09-09 | 2021-01-08 | 中国石油天然气股份有限公司 | Horizontal well cable clustering perforating gun string safety release device |
| CN112576202B (en) * | 2020-12-14 | 2023-04-18 | 西安威尔格德能源技术有限公司 | Physical isolation release nipple joint for perforation tool string |
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| CN204419138U (en) * | 2014-12-09 | 2015-06-24 | 中国石油集团川庆钻探工程有限公司 | Horizontal well cable transmission lateral ring guide clustering directional perforation mechanism |
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2015
- 2015-09-18 CN CN201510596421.XA patent/CN105201435B/en active Active
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