CN209586368U - A kind of fluid injection and apparatus to cause bursting for oil and gas reservoir - Google Patents
A kind of fluid injection and apparatus to cause bursting for oil and gas reservoir Download PDFInfo
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- CN209586368U CN209586368U CN201920185569.8U CN201920185569U CN209586368U CN 209586368 U CN209586368 U CN 209586368U CN 201920185569 U CN201920185569 U CN 201920185569U CN 209586368 U CN209586368 U CN 209586368U
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Abstract
The utility model discloses a kind of fluid injection for oil and gas reservoir and apparatus to cause burstings, the device includes center steel column, cylinder barrel, piston, open quick-fried unit, pressure controller, perforated interval elastic packing unit, transition joint, it is compressed axially component, guide head into, the center steel column is connected with cylinder barrel by transition joint, the piston is movably arranged in cylinder barrel, it is described to open quick-fried unit and be arranged in the right end centre bore of piston, in the centrally disposed steel column of pressure controller, the center steel column outer cover sets perforated interval elastic packing unit, the two sides for being compressed axially component and perforated interval elastic packing unit being set, the right end guided head into and be fixed on center steel column by hold-down bolt；Matching is provided with fluid infusion channel on the perforated interval elastic packing unit and center steel column.The utility model can safely, controllably, reliably realize fluid injection and ignite process.
Description
Technical field
The utility model belongs to oil gas field completion technique field, and in particular to a kind of fluid injection for oil and gas reservoir and
Apparatus to cause bursting.
Background technique
Currently, opening in petroleum gas unconventional shale storage exploitation and the high-quality close low permeability oil and gas field of other routines
It adopts in operation, in Completion Operations, hydraulic fracturing becomes the key means for obtaining industrial flow.However hydraulic fracturing is costly
High, expense has accounted for 50% or more of entire Completion cost, and, in addition hydraulic fracturing pair higher in water shortage oil field fracturing expense
A large amount of consumings of water resource and environmental pollution, cause many negative socials to influence；And in some oil gas fields with a varied topography, greatly
Type hydraulic fracturing vehicle is mobile difficult, also limits the exploitation of these Region of Oil-gas.
Oil and gas reservoir explosive fracturing is the technical solution of most potential substitution hydraulic fracturing.
Utility model content
In view of this, the main purpose of the utility model is to provide a kind of fluid injection for oil and gas reservoir and igniting
Device.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
The utility model embodiment provides a kind of fluid injection for oil and gas reservoir and apparatus to cause bursting, during which includes
Heart steel column, piston, opens quick-fried unit, pressure controller, perforated interval elastic packing unit, transition joint, is compressed axially group cylinder barrel
Part guides head into, and the center steel column is connected with cylinder barrel by transition joint, and the piston is movably arranged in cylinder barrel, described to open
Quick-fried unit is arranged in the right end centre bore of piston, in the centrally disposed steel column of pressure controller, outside the center steel column
Portion is arranged perforated interval elastic packing unit, and the two sides for being compressed axially component and perforated interval elastic packing unit being arranged in are described
Guide the right end that head is fixed on center steel column by hold-down bolt into；It is matched on the perforated interval elastic packing unit and center steel column
It is provided with fluid infusion channel.
In above scheme, the center steel column includes the first center steel column, the second center steel column, third center steel column, institute
The left and right ends for stating the second center steel column are separately connected the first center steel column, third center steel column, second center steel column
Left and right end face is provided with fluid channel gap, second central steel between the first center steel column, third center steel column respectively
Column is radially provided with first fluid injector tunnel, is provided in the axial direction of second center steel column for being connected to two streams
First duct of body path clearance.
In above scheme, the pressure controller includes shell, ball seat, pressure ball, compression spring, look nut, described
The intracorporal left side of shell is arranged ball seat, and right side is arranged look nut, the pressure ball be arranged in the left end of ball seat and with shell
Import abuts, and the compression spring is arranged between ball seat and look nut.
In above scheme, the component that is compressed axially includes first annular piston, the second annular piston, described first annular
Piston, the second annular piston are set on the steel column of center and are separately positioned on the two sides of perforated interval elastic packing unit.
In above scheme, be provided between the first annular piston and transition joint for fluid flow into first between
Gap, second annular piston and guides between head the second gap being provided with for driving liquid stream to enter into；The transition joint is extremely
Few side is provided with the second duct for being connected to fluid storehouse and the first gap in cylinder barrel.
In above scheme, fluid switch is set, and the left end of the fluid switch is extend out in cylinder barrel in second duct
In fluid storehouse.
It is described to open quick-fried unit including pressing quick-fried head, the striker that detonates, opening quick-fried bullet, shear pin, impact detonator in above scheme；Institute
It states the quick-fried head of pressure to be fixed in the right end centre bore of piston by shear pin, and presses the right side of the prominent piston in the right side of quick-fried head；
The left end central hole location of piston is arranged in the detonation striker；The right side opening quick-fried bullet and being arranged in the centre bore for pressing quick-fried head
Side, the left side and its right end that the impact detonator is arranged in the centre bore for pressing quick-fried head are abutted with the left end for opening quick-fried bullet.
In above scheme, the perforated interval elastic packing unit includes the first elastic seal ring, stop sleeve, the second elasticity
Sealing ring；First elastic seal ring, stop sleeve, the second elastic seal ring are from left to right sequentially sleeved at the first central steel
Outside column；It is provided on the stop sleeve and the matched second fluid injector tunnel in first fluid injector tunnel.
In above scheme, the left end of the cylinder barrel is provided with the top connection for connecting with driving unit；The top connection
Region between cylinder barrel is first pressure liquid storehouse, is provided with check valve in the top connection.
Compared with prior art, the utility model realizes the sealing of target perforated interval by the pressure transmitting of piston first,
Then it automatically turns on again and liquid explosives is injected into oil and gas reservoir by perforation tunnel high pressure；When required explosive charge injects oil inlet
After gas reservoir, and the momentary status of injection pressure is kept, it is immediately automatic to ignite by the liquid explosives in injection oil and gas reservoir, to oil
Gas-bearing formation carries out exploding in fracture pressure break；The utility model can safely, controllably, reliably realize this serial procedures.
Detailed description of the invention
Fig. 1 shows for the structure that the utility model embodiment provides a kind of fluid injection and apparatus to cause bursting for oil and gas reservoir
It is intended to；
Fig. 2 provides a kind of fluid injection for oil and gas reservoir and pressure control in apparatus to cause bursting for the utility model embodiment
The structural schematic diagram of device processed；
Fig. 3 is the partial enlarged view of Fig. 1；
Fig. 4 provides a kind of fluid injection for oil and gas reservoir and apparatus to cause bursting in shaft sleeve for the utility model embodiment
In pipe, start status diagram when starting；
Fig. 5 provides a kind of fluid injection for oil and gas reservoir and apparatus to cause bursting in shaft sleeve for the utility model embodiment
In pipe, liquid explosives will inject the status diagram finished；
Wherein, the center 1- steel column, the first center 101- steel column, the second center 102- steel column, 103- third center steel column,
1011- second pressure liquid storehouse, 1021- first fluid injector tunnel, the first duct 1022-, 1023- fluid channel gap,
1031- centre bore, 2- cylinder barrel, 21- fluid storehouse, 3- piston, 4- open quick-fried unit, 41- presses quick-fried head, 42- detonation striker, 43- open it is quick-fried
Bullet, 44- impact detonator, 45- shear pin, 5- pressure controller, 51- shell, 52- ball seat, 53- pressure ball, 54- compression spring,
55- look nut, 6- perforated interval elastic packing unit, the first elastic seal ring of 61-, 62- stop sleeve, 621- second fluid note
Enter duct, the second elastic seal ring of 63-, 7- transition joint, the second duct 71-, 8- are compressed axially the first annular work of component, 81-
Plug, the second annular piston of 82-, the first gap 811-, the second gap 821-, 9- guide head, 10- hold-down bolt, 11- fluid into and open
Pass, 12- top connection, 121- first pressure liquid storehouse, 122- check valve.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
It is to be appreciated that "left", "right" mentioned in the following implementation of the utility model is shown in each figure
Direction on the basis of, these, which are used to limit the words in direction, is intended merely to facilitate explanation, does not represent to the utility model tool
The limitation of body technique scheme.
The utility model embodiment provides a kind of fluid injection for oil and gas reservoir and apparatus to cause bursting, such as Fig. 1,2 institutes
Show, the device include center steel column 1, cylinder barrel 2, piston 3, open quick-fried unit 4, pressure controller 5, perforated interval elastic packing unit 6,
Transition joint 7 is compressed axially component 8, guides first 9 into, and the center steel column 1 and cylinder barrel 2 are connected by transition joint 7, the work
Plug 3 is movably arranged in cylinder barrel 2, and described to open quick-fried unit 4 and be arranged in the right end centre bore of piston 3, the pressure controller 5 is set
It sets in center steel column 1, perforated interval elastic packing unit 6 is arranged outside the center steel column 1, the component 8 that is compressed axially is set
It sets in the two sides of perforated interval elastic packing unit 6, it is described to guide first 9 right ends that center steel column 1 is fixed on by hold-down bolt 10 into；
Matching is provided with fluid infusion channel on the perforated interval elastic packing unit 6 and center steel column 1.
The center steel column 1 includes the first center steel column 101, the second center steel column 102, third center steel column 103, institute
The left and right ends for stating the second center steel column 102 are separately connected the first center steel column 101, third center steel column 103, in described second
The left and right end face of heart steel column 102 is provided between fluid channel between the first center steel column 101, third center steel column 103 respectively
Gap 1023, second center steel column 102 are radially provided with first fluid injector tunnel 1021, second center steel column
The first duct 1022 for being connected to two fluid channel gaps 1023 is provided in 102 axial direction.
The first fluid injector tunnel 1021 and the first duct 1022 are dislocation hole.
The left end of the cylinder barrel 2 is provided with the top connection 12 for connecting with driving unit；The top connection 12 and cylinder barrel
Region between 2 is first pressure liquid storehouse 121, is provided with check valve 122 in the top connection 12.
The region between piston 3 and third center steel column 103 is in the cylinder barrel 2 for fluid storehouse 21, in described first
It is second pressure liquid storehouse 1011 that the region between pressure controller 5 and hold-down bolt 10 is in heart steel column 101.
For storing liquid explosives in the fluid storehouse 21, storage driving unit is used in first pressure liquid storehouse 121
The pressure fluid injected by check valve 122, to push piston 3 to move right, second pressure liquid storehouse 1011 is driven for storing
The pressure fluid that moving axis is moved to compression assembly 8.
The component 8 that is compressed axially includes first annular piston 81, the second annular piston 82, the first annular piston
81, the second annular piston 82 is set on center steel column 1 and is separately positioned on the two sides of perforated interval elastic packing unit 6,
By first annular piston 81, the second annular piston 82 to the axial compression of perforated interval elastic packing unit 6 so that perforated interval bullet
Property sealing unit 6 realize sealing to perforated interval.
The pressure controller 5 includes shell 51, ball seat 52, pressure ball 53, compression spring 54, look nut 55, described
Ball seat 52 is arranged in left side in shell 51, and look nut 55 is arranged in right side, and the left end of ball seat 52 is arranged in simultaneously in the pressure ball 53
And abutted with the import of shell 51, the compression spring 54 is arranged between ball seat 52 and look nut 55.
Under driving pressure effect, by the control of pressure controller 5, realization perforated interval elastic packing unit 6 first exists
The sealing under pressure to perforated interval two sides is set, it is described after driving pressure is greater than setting pressure (i.e. realization high-pressure-resistant sealed)
Fluid channel in pressure controller 5 automatically opens, and then the injection of automatic start liquid explosive.
The first gap 811 flowed into for fluid, institute are provided between the first annular piston 81 and transition joint 7
It states the second annular piston 82 and guides the second gap 821 being provided between first 9 for driving liquid stream to enter into.
When piston 3 moves right, the liquid explosives in fluid storehouse 21 flow into second by the duct on fluid switch 11
In duct 71, then flows into the first gap 811 and first annular piston 81 is pushed to move right, while the liquid in fluid storehouse 21
The centre bore 1031 that body explosive also passes through third center steel column 103 flows into the first duct 1022, then is flowed by the first duct 1022
Enter in second pressure liquid storehouse 1011, pressure is transmitted to the pressure fluid in second pressure liquid storehouse 1011, pressure fluid passes through the second gap
821 flow into and the second annular piston 82 are pushed to be moved to the left, the first annular piston 81 and the second annular piston 82 difference
Sealing to perforated interval is achieved to the both direction transmitting pressure of perforated interval elastic packing unit 6.
After the both direction transmitting pressure of the perforated interval elastic packing unit 6 achieves the sealing to perforated interval, when
When driving pressure is greater than setting pressure, the pressure ball 53 of the pressure controller 5 moves right and compression spring 54 is compressed,
Liquid explosives are flowed by the entrance of shell 51, are flowed out by the liquid explosives of shell 51 from the outlet of look nut 55, finally
It is injected into perforation seal section by first fluid injector tunnel 1021, second fluid injector tunnel 621, then passes through wellbore casing
On preforation tunnel, be injected into oil and gas reservoir.
It is described to open quick-fried unit 4 including pressing quick-fried head 41, detonation striker 42, opening quick-fried bullet 43, shear pin 45, impact detonator 44；Institute
It states the quick-fried head 41 of pressure to be fixed in the right end centre bore of piston 3 by shear pin 45, and presses the prominent piston 3 in the right side of quick-fried head 41
Right side；The left end central hole location of piston 3 is arranged in the detonation striker 42；It is described to open quick-fried bullet 43 the quick-fried head 41 of pressure is set
Right side in centre bore, left side that the impact detonator 44 is arranged in the centre bore for pressing quick-fried head 41 and its on the right side of with open quick-fried bullet
43 left end abuts.
Carrying while the piston 3 moves right presses quick-fried head 41 to move right, when the liquid explosives quilt in fluid storehouse 21
When all extruding, the left end face contact of the pressure quick-fried head 41 and transition joint 7, the pressure of generation cuts shear pin 45, at this moment, institute
State the quick-fried head 41 of pressure under pressure, quick-fried bullet 43 is opened in carrying, and the centre bore along piston 3 is moved to the left, until the impact detonator
44 bump against with detonation striker 42, and the impact detonator 44 opens quick-fried, and opens quick-fried bullet 43 described in igniting, and open after quick-fried bullet 43 detonates, produce
The right side steel plate for pressing quick-fried head 41 is punched in raw high-speed jet, ignites the liquid in the centre bore 1031 of third center steel column 103
The liquid explosives that explosive, fluid infusion channel and perforated interval retain ignite injection oil gas storage as booster explosive, by preforation tunnel
The liquid explosives explosion of layer.
The perforated interval elastic packing unit 6 includes the first elastic seal ring 61, stop sleeve 62, the second elastic seal ring
63；First elastic seal ring 61, stop sleeve 62, the second elastic seal ring 63 are from left to right sequentially sleeved at the first center
Outside steel column 101；Second fluid injector tunnel 621 is provided on the stop sleeve 62.
The first annular piston 81 transmits pressure to the right to the first elastic seal ring 61, and the second annular piston 82 is to the
The pressure of two elastic seal rings 63 transmitting to the left, since stop sleeve 62 is located at the first elastic seal ring 61 and the second elastic packing
Among circle 63, it is compressed axially and diameter so first elastic seal ring 61 and the second elastic seal ring 63 generate after being under pressure
To expansion, finally, the sealing to perforated interval is realized.
The course of work that each unit of the utility model embodiment starts sequencing automatically is as follows:
(1) starting of driving unit:
As shown in Fig. 2, pushing piston 3 to move right to 121 injection pressure liquid of first pressure liquid storehouse by check valve 122
It is dynamic, driving pressure F is generated, pressure is generated to the liquid explosives in fluid storehouse 21；
On the one hand liquid explosives pass through the inflow of the second duct 71, transmit pressure to first annular piston 81；On the other hand logical
The first duct 1022 for crossing the second center steel column 102 flows into second pressure liquid storehouse 1011, to the pressure in second pressure liquid storehouse 1011
Power liquid transmits pressure, at this point, the driving unit starts, that is, the utility model opens work.
(2) the seal process starting of perforated interval:
After the driving unit of the utility model is opened, when driving pressure F is less than the setting pressure of pressure controller 5, institute
It states pressure controller 5 to be in close state, the perforated interval elastic packing unit 6 under this operating condition, for target seal perforated interval
Preferential automatic starting.
Liquid explosives in the fluid storehouse 21 are flowed by the second duct 71 and push first annular piston 81 to the right
It is mobile, pressure is passed into the first elastic seal ring 61, while the liquid explosives in fluid storehouse 21 also pass through the second center steel column
102 the first duct 1022 flows into second pressure liquid storehouse 1011, transmits pressure, institute to the pressure fluid in second pressure liquid storehouse 1011
It states pressure fluid in second pressure liquid storehouse 1011 to flow by the second gap 821, and pushes the second annular piston 82 to moving to left
It is dynamic, pressure is passed into the second elastic seal ring 63；Since stop sleeve 62 is located at the first elastic seal ring 61 and the second elasticity
Among sealing ring 63, under the continuous action of driving pressure F, first elastic seal ring 61 and the second elastic seal ring 63
Axial width become smaller, the first elastic seal ring 61 and the second elastic seal ring 63 are to being radially expanded, until squeezed tight to well
Cylinder internal surface of sleeve pipe realizes the high-pressure-resistant sealed to perforated interval both ends, and when the first elastic seal ring 61 and the second elastic packing
When the axial crushing deformation of circle 63 reaches the deflection of design requirement, namely it ensure that the resistance to voltage levels of the sealing of design requirement, when
When driving pressure F is greater than the setting pressure of pressure controller 5, the pressure controller 5 can be opened, this is close from perforated interval
Envelope is completed, to the key node for starting injection in next step.
(3) the automatic starting of liquid explosives injection oil and gas reservoir process:
After the completion of perforated interval sealing, when driving pressure F is greater than the setting pressure of pressure controller 5, the pressure control
The pressure ball 53 of device 5 moves right and compression spring 54 is compressed, and liquid explosives are flowed by the entrance of shell 51, passes through shell
The liquid explosives of body 51 are flowed out from the outlet of look nut 55, are infused eventually by first fluid injector tunnel 1021, second fluid
Enter duct 621 to be injected into perforation seal section, then oil and gas reservoir is injected by the preforation tunnel on wellbore casing, to realize
The connection of the fluid infusion channel and preforation tunnel and oil and gas reservoir of the utility model, under the action of driving pressure F, the work
Plug 3 continues to move right, and the liquid explosives in fluid storehouse 21 start to inject oil and gas reservoir, as shown in Figure 3.
Under the action of driving pressure F, the fluid injection that the liquid explosives in fluid storehouse 21 have stepped through connection is logical
Road is injected into oil and gas reservoir.
(4) instant pressure opens the automatic starting of quick-fried, propagation of explosion, explosive fracturing process:
After liquid explosives in fluid storehouse 21 are all forced out, at this moment, the right side of the piston 3 compresses fluid
Switch 11, and pressure is transmitted, the fluid switch 11 moves right to the second duct 71, in this way, fluid switch 11 and first
Liquid explosives between annular piston 81 and the liquid explosives in fluid storehouse 21 are completely isolated；
It moves right with fluid switch 11 to simultaneously, the carrying of piston 3 is opened quick-fried unit 4 and is connected in the second duct 71
At this moment the left end of third center steel column 103 presses the right side of quick-fried head 41 directly to abut with the left side of third center steel column 103,
It under driving pressure F continuous action, is kept for the moment of injection pressure, the shear pin 45 of the quick-fried head 41 of pressure is cut, the pressure
Under pressure, quick-fried bullet 43 is opened in carrying to quick-fried head 41, and the centre bore along piston 3 is moved to the left, until the impact detonator 44 with
The striker 42 that detonates bumps against, and the impact detonator 44 opens quick-fried, and opens quick-fried bullet 43 described in igniting, opens the height generated after quick-fried bullet 43 detonates
Rapid fire stream punches the right side steel plate for pressing quick-fried head 41, ignites the liquid explosives in the centre bore 1031 of third center steel column 103, stream
The liquid explosives that body injection channel and perforated interval retain ignite the liquid of injection oil and gas reservoir by preforation tunnel as booster explosive
Explosive charge realizes exploding in fracture pressure break.
Explosive fracturing is a dynamic process in oil and gas reservoir, under the impact loading of certain loading speed, in oil
Gas reservoir forms fracture swarm, significantly promotes oil and gas reservoir volume fracture spacing.The detonation wave of explosion, stress wave and generation
The comprehensive function of a large amount of high fever high pressure gas makes crack extend extension at double, meanwhile, so that rock stratum torn, misplace, distorted and produces
Raw rubble support forms the fracture swarm with higher permeability to cannot restore to be closed in situ after unloading crack；Meanwhile
Rock generates expendable plastic deformation, crack is made still to keep one after unloading under the high pressure effect for being more than yield limit
Fixed remaining slit width.
As shown in table 1, the preliminary test of the utility model shows exploding in fracture pressure break significantly better than hydraulic fracturing, layer implosion
Fried pressure break can increase substantially the drainage area of oil and gas reservoir, the communication level being obviously improved between oil and gas reservoir and pit shaft,
And the recovery ratio and well yield of oil and gas reservoir is substantially improved.
Table 1
The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model
Range.
Claims (9)
1. a kind of fluid injection and apparatus to cause bursting for oil and gas reservoir, which is characterized in that the device includes center steel column, cylinder
Cylinder, piston open quick-fried unit, pressure controller, perforated interval elastic packing unit, transition joint, are compressed axially component, guide head into,
The center steel column is connected with cylinder barrel by transition joint, and the piston is movably arranged in cylinder barrel, described to open quick-fried unit setting
In the right end centre bore of piston, in the centrally disposed steel column of pressure controller, the center steel column outer cover sets perforation
Section elastic packing unit, the two sides for being compressed axially component and perforated interval elastic packing unit being arranged in, the head of guiding into pass through
Hold-down bolt is fixed on the right end of center steel column；Matching is provided with fluid on the perforated interval elastic packing unit and center steel column
Injection channel.
2. the fluid injection and apparatus to cause bursting according to claim 1 for oil and gas reservoir, which is characterized in that the center
Steel column includes the first center steel column, the second center steel column, third center steel column, and the left and right ends of second center steel column are distinguished
Connect the first center steel column, third center steel column, the left and right end face of second center steel column respectively with the first center steel column,
Fluid channel gap is provided between three center steel columns, second center steel column is radially provided with first fluid injection hole
Road is provided with the first duct for being connected to two fluid channel gaps in the axial direction of second center steel column.
3. the fluid injection and apparatus to cause bursting according to claim 1 or 2 for oil and gas reservoir, which is characterized in that described
Pressure controller includes shell, ball seat, pressure ball, compression spring, look nut, and ball seat is arranged in the intracorporal left side of shell, right
Look nut is arranged in side, and the pressure ball is arranged in the left end of ball seat and abuts with the import of shell, and the compression spring is set
It sets between ball seat and look nut.
4. the fluid injection and apparatus to cause bursting according to claim 3 for oil and gas reservoir, which is characterized in that the axial direction
Compression assembly includes first annular piston, the second annular piston, during the first annular piston, the second annular piston are set in
On heart steel column and it is separately positioned on the two sides of perforated interval elastic packing unit.
5. the fluid injection and apparatus to cause bursting according to claim 4 for oil and gas reservoir, which is characterized in that described first
Be provided between annular piston and transition joint for fluid flow into the first gap, second annular piston and guide into head it
Between be provided with the second gap for driving liquid stream to enter；The transition joint at least side is provided with for being connected to fluid in cylinder barrel
Second duct in storehouse and the first gap.
6. the fluid injection and apparatus to cause bursting according to claim 5 for oil and gas reservoir, which is characterized in that described second
Fluid switch is set in duct, and the left end of the fluid switch is extend out in cylinder barrel in fluid storehouse.
7. the fluid injection and apparatus to cause bursting according to claim 6 for oil and gas reservoir, which is characterized in that it is described open it is quick-fried
Unit includes pressing quick-fried head, the striker that detonates, opening quick-fried bullet, shear pin, impact detonator；The quick-fried head of pressure is fixed on piston by shear pin
Right end centre bore in, and press the right side of the prominent piston in the right side of quick-fried head；The left end of piston is arranged in the detonation striker
Central hole location；The quick-fried head of pressure is arranged in the right side opening quick-fried bullet and being arranged in the centre bore for pressing quick-fried head, the impact detonator
Left side and its right end in centre bore are abutted with the left end for opening quick-fried bullet.
8. the fluid injection and apparatus to cause bursting according to claim 7 for oil and gas reservoir, which is characterized in that the perforation
Section elastic packing unit includes the first elastic seal ring, stop sleeve, the second elastic seal ring；First elastic seal ring,
Stop sleeve, the second elastic seal ring are from left to right sequentially sleeved at outside the first center steel column；It is provided on the stop sleeve
With the matched second fluid injector tunnel in first fluid injector tunnel.
9. the fluid injection and apparatus to cause bursting according to claim 8 for oil and gas reservoir, which is characterized in that the cylinder barrel
Left end be provided with the top connection for connecting with driving unit；Region between the top connection and cylinder barrel is first pressure liquid
Storehouse is provided with check valve in the top connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920185569.8U CN209586368U (en) | 2019-02-02 | 2019-02-02 | A kind of fluid injection and apparatus to cause bursting for oil and gas reservoir |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920185569.8U CN209586368U (en) | 2019-02-02 | 2019-02-02 | A kind of fluid injection and apparatus to cause bursting for oil and gas reservoir |
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| CN209586368U true CN209586368U (en) | 2019-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339761A (en) * | 2018-11-16 | 2019-02-15 | 吴继先 | Fluid injection and apparatus to cause bursting for oil and gas reservoir |
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2019
- 2019-02-02 CN CN201920185569.8U patent/CN209586368U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339761A (en) * | 2018-11-16 | 2019-02-15 | 吴继先 | Fluid injection and apparatus to cause bursting for oil and gas reservoir |
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