CN110118077A - A kind of completion practice perforating system - Google Patents
A kind of completion practice perforating system Download PDFInfo
- Publication number
- CN110118077A CN110118077A CN201810114743.XA CN201810114743A CN110118077A CN 110118077 A CN110118077 A CN 110118077A CN 201810114743 A CN201810114743 A CN 201810114743A CN 110118077 A CN110118077 A CN 110118077A
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- China
- Prior art keywords
- jet hose
- jet
- hose
- perforating system
- limit
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/11—Perforators; Permeators
- E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/11—Perforators; Permeators
- E21B43/119—Details, e.g. for locating perforating place or direction
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Nozzles (AREA)
- Catching Or Destruction (AREA)
Abstract
The present invention provides a kind of completion practice perforating system, including shell and nozzle assembly, one end of the nozzle assembly is disposed in the housing, the other end stretches out the shell, the nozzle assembly includes multiple jet hoses being successively arranged, and the combined sprinkler set on jet hose ejection end, the combined sprinkler include the multiple split blocks to connect one to one with jet hose, the adjacent jet hose is limited by the shear pin being set between split block；The limit assembly when inside tube extend out to outside pipe end with outboard tube limit cooperation is equipped between the adjacent jet hose.The present invention has many advantages, such as that increase reservoir drainage area, structure are simple and easy to operate.
Description
Technical field
The present invention relates to underground completion tool field more particularly to a kind of completion practice perforating systems.
Background technique
In oil exploitation, getting through oil flow channel is an important process.The existing mode for getting through oil flow channel is to adopt
With cumulative bullet perforation, the compaction band pollution that reservoir generates can not be overcome using the perforating modes, and significantly reduce reservoir to have
Permeability is imitated, it is totally unfavorable to crude oil production.In order to solve the above technical problems, existing mode is using high-pressure water jet perforation
Mode, the duct of certain length can be generated.But duct communication range is still far from enough, and injection rock breaking efficiency is limited.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of increase reservoir drainage area,
Structure is simple and easy to operate completion practice perforating system.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of completion practice perforating system, including shell and nozzle assembly, one end of the nozzle assembly are set to described
In shell, the other end stretches out the shell, and the nozzle assembly includes multiple jet hoses being successively arranged, and is set to injection
The combined sprinkler of hose ejection end, the combined sprinkler includes the multiple split blocks to connect one to one with jet hose, adjacent
The jet hose is limited by the shear pin being set between split block；It is equipped between the adjacent jet hose and is stretched out in inside tube
When to outside pipe end with the limit assembly of outboard tube limit cooperation.
As a further improvement of the above technical scheme:
The intensity of the shear pin of limit outside jet hose is less than the intensity of the shear pin of limit inside jet hose.
The shear pin at least two of same jet hose is limited, multiple shear pins are uniformly arranged along the circumferential direction of jet hose.
The limit assembly includes the stop collar set on jet hose front end outer side, and is set on the inside of jet hose end
Match cyclization, the inside tube extend out to outside pipe end when, the stop collar with cyclization limit cooperate.
The combined sprinkler is equipped with the power stream channel being connected to jet hose inner cavity and point fluidic channel；Positioned at outermost
Each jet hose in the jet hose of side was equipped with recirculation hole, and the jet hose inner cavity passed through recirculation hole and divided jet stream logical
Road connection.
The total area of passage for crossing recirculation hole is greater than the power stream channel and divides total area of passage of fluidic channel.
Described point of fluidic channel be it is multiple, it is each it is described divide the center line of fluidic channel to intersect, in the power stream channel
Heart line and the crosspoint for dividing fluidic channel intersect.
The shell be equipped with for jet hose pass through through through-hole, it is described through being equipped between through-hole and jet hose
For guaranteeing the seal receptacle of housing cavity sealing, one end of jet hose described in outermost, which is equipped with to limit with the seal receptacle, to be cooperated
Limiting section.
The first sealing ring, sealing ring and compression ring, first sealing ring are equipped between the seal receptacle and jet hose
And seal ring set is set on the outermost jet hose, and the compression ring by being bolted on seal receptacle adjusts sealing position
It sets；The seal receptacle and the second sealing ring is equipped between the through-hole.
The shell includes top connection, lower contact and connected with outer casing, the both ends of the connected with outer casing respectively with top connection and
Lower contact is threadedly coupled, and third sealing ring is equipped between the connected with outer casing and top connection and lower contact.
Compared with the prior art, the advantages of the present invention are as follows:
Nozzle assembly of the invention includes multiple jet hoses being successively arranged, jet hose under waterpower draw by
Grade, which is stretched out, pierces reservoir implementation pore-creating, increases pore depth significantly, links up reservoir range to extend significantly, reach
Increase the purpose of reservoir drainage area, volume increase.The combined sprinkler of jet hose ejection end includes multiple split blocks, multiple split blocks
It connects one to one with jet hose, adjacent jet hose is limited by the shear pin being set between split block, and shear pin is corresponding
It is cut when two jet hose relative motions, it is easy to operate, perforation efficiency is high so that jet hose can stretch out step by step and seperated
Block and the form structure of shear pin combination are simple and compact, occupy little space.Meanwhile limit assembly is equipped between adjacent jet hose,
It makes inside tube extend out to outside pipe end Shi Keyu outboard tube limit cooperation, ensure that jet hose is reliably stretched step by step
Out.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein:
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the enlarged diagram in the portion A of Fig. 1.
Fig. 3 is the enlarged diagram in the portion B of Fig. 1.
Fig. 4 is the main view of spray head of the present invention.
Fig. 5 is the main sectional view of spray head of the present invention.
Fig. 6 is the top view of spray head of the present invention.
Fig. 7 is the cross-sectional view of primary shear pin position of the invention.
Fig. 8 is the cross-sectional view of secondary shear pin position of the invention.
Fig. 9 is structural schematic diagram when outer tube of the present invention is fully extended.
Figure 10 is structural schematic diagram when middle tube of the present invention is fully extended.
Figure 11 is structural schematic diagram when inner tube of the present invention is fully extended.
Each label indicates in figure:
1, shell；11, run through through-hole；12, top connection；13, lower contact；14, connected with outer casing；15, third sealing ring；2, it sprays
Nozzle assembly；21, jet hose；211, recirculation hole is crossed；212, limiting section；22, combined sprinkler；221, split block；222, power stream
Channel；223, divide fluidic channel；3, shear pin；31, primary shear pin；32, secondary shear pin；33, shear pin hole；4, limit assembly；41, it limits
Position ring；42, match cyclization；5, seal receptacle；6, the first sealing ring；7, sealing ring；8, compression ring；9, the second sealing ring.
Specific embodiment
Under the present invention will be described in further details in conjunction with Figure of description and specific embodiment, but therefore do not limit
Protection scope of the present invention processed.
In the embodiment for showing completion practice perforating system such as Fig. 1 to Fig. 8, completion practice is mainly used with perforating system
Increase production field in the complete well of petroleum carbonate reservoir.Completion practice perforating system includes shell 1 and nozzle assembly 2, nozzle sets
One end of part 2 is set in shell 1；The other end of nozzle assembly 2 stretches out shell 1, to carry out injection pore-creating to rock.
In the present embodiment, nozzle assembly 2 includes jet hose 21 and combined sprinkler 22.Wherein, jet hose 21 is multiple,
Multiple jet hoses 21 are successively arranged, and jet hose 21 stretches out step by step under waterpower draw pierces reservoir implementation pore-creating,
Pore depth is increased significantly, is linked up reservoir range to extend significantly, has been reached the mesh for increasing reservoir drainage area, volume increase
's.Combined sprinkler 22 is set to the ejection end of jet hose 21, and combined sprinkler 22 includes multiple split blocks 221, multiple split blocks 221
It connects one to one with jet hose 21, and adjacent jet hose 21 is limited by the shear pin 3 being set between split block 221, is cut
Nail 3 is cut in corresponding two jet hoses, 21 relative motion, easy to operate, penetrate so that jet hose 21 can stretch out step by step
Hole is high-efficient, and split block 221 and shear pin 3 it is combined form structure it is simple and compact, occupy little space.Meanwhile it is adjacent injection it is soft
It is equipped with limit assembly 4 between pipe 21, the jet hose 21 positioned inside is extend out to positioned at 21 end of jet hose in outside
It can limit and cooperate with outside jet hose 21 when end, ensure that jet hose 21 is reliable step by step and stretch out.
In the present embodiment, the intensity of the shear pin 3 of limit outside jet hose 21 is less than cutting for limit inside jet hose 21
The intensity of nail 3.It makes the jet hose 21 positioned at outside first cut generation relative movement in perforation, ensure that jet hose
21 stretching step by step.
As shown in Figure 1 to Figure 3, the jet hose 21 of the present embodiment is three, and three jet hoses 21 respectively successively cover
If inner tube, middle tube and outer tube；Split block 221 is set as three, and three split blocks 221 are soft with corresponding injection respectively
Pipe 21 is threadedly coupled.In other embodiments, it can be required to be set as two, four etc. according to injector stroke, split block 221 is corresponding
It is set as two, four etc..As shown in Figure 6 to 8, the inner tube and middle tube of the present embodiment pass through between split block 221
Primary shear pin 31 limits, and middle tube and outer tube are limited by the secondary shear pin 32 between split block 221.Primary shear pin 31 it is strong
Degree is less than the intensity of secondary shear pin 32, so that middle tube and inner tube are stretched out step by step after outer tube is stretched out in place.
Further, the shear pin 3 for limiting same jet hose 21 is two, and two shear pins 3 are symmetrically arranged in jet hose
21 two sides.In other embodiments, as long as can the quantity of shear pin 3 guarantee the bonding strength and shearing strength of jet hose 21
It is required that shear pin 3 may be alternatively provided as three, four etc., multiple shear pins 3 are uniformly arranged along the circumferential direction of jet hose 21.
As shown in Figures 2 and 3, limit assembly 4 including stop collar 41 and matches cyclization 42.Stop collar 41 is set to jet hose 21
Front end outer side, be set to cyclization 42 on the inside of the end of jet hose 21, when the jet hose 21 for being located inside extend out to and is located at
When the end of the jet hose 21 in outside, stop collar 41 cooperates with the limit of cyclization 42.Its structure is simple and convenient to operate.
As shown in figure 5, the combined sprinkler 22 of the present embodiment is equipped with power stream channel 222 and divides fluidic channel 223.Master penetrates
Circulation road 222 and fluidic channel 223 and the inner cavity of jet hose 21 is divided to be connected to.Each injection in outermost jet hose 21
Hose 21 was equipped with recirculation hole 211, and the inner cavity of jet hose 21 passed through recirculation hole 211 and is connected to point fluidic channel 223.This
In embodiment, the total area of passage for crossing recirculation hole 211 is greater than power stream channel 222 and divides total area of passage of fluidic channel 223,
So that forming chock pressure difference at combined sprinkler 22, the stretching of jet hose 21 is drawn.
Further, point fluidic channel 223 is set as four.Circumferential direction of four points of fluidic channels 223 along jet hose 21
It is evenly arranged, and the center line intersection of each point of fluidic channel 223, the center line in power stream channel 222 and divides fluidic channel 223
Crosspoint intersection.In other embodiments, the quantity of point fluidic channel 223 can be adjusted according to perforation traffic requirement, such as be set
It is set to three, five.
In the present embodiment, combined sprinkler 22 is equipped with the shear pin hole 33 passed through for shear pin 3.Along the circumferential direction of jet hose 21,
Shear pin hole 33 is staggeredly arranged with point fluidic channel 223.In the present embodiment, combined sprinkler 22 is sphere type combined sprinkler, at other
In embodiment, it may be configured as rectangular, cylindrical etc..
As shown in Fig. 2, shell 1, which is equipped with, runs through through-hole 11 for what jet hose 21 passed through.It is soft through through-hole 11 and injection
Seal receptacle 5 is equipped between pipe 21, seal receptacle 5 is bolted in through-hole 11, which ensure that effective sealing of 1 inner cavity of shell.Most
One end of outside jet hose 21 is equipped with limiting section 212, so that outermost jet hose 21 is moved to extreme position Shi Yumi
Seal the limit cooperation of seat 5.It is inclined hole through through-hole 11 in the present embodiment, inclined hole is arranged towards perforation direction.
Further, the first sealing ring 6, sealing ring 7 and compression ring 8 are equipped between seal receptacle 5 and jet hose 21.Its
In, the first sealing ring 6 and sealing ring 7 be sheathed on outermost jet hose 21, it can be achieved that seal receptacle 5 and jet hose 21 it
Between dual-seal；Compression ring 8 is bolted in seal receptacle 5, and the first sealing ring 6 and sealing ring 7 are compressed by compression ring 8 and sealed,
Meanwhile the depth that is spirally connected for adjusting compression ring 8 can adjust the sealing station of the first sealing ring 6 and sealing ring 7, the setting of compression ring 8
Further improve sealing effect.Seal receptacle 5 and the second sealing ring 9 is equipped between the through-hole 11, to guarantee seal receptacle 5 and pass through
Effective sealing between reach through hole 11.
Further, shell 1 includes top connection 12, lower contact 13 and connected with outer casing 14.Wherein, top connection 12 and lower contact
13 connect with completion tubular column respectively, shell 1 can with completion tubular column tripping in predetermined reservoir, meanwhile, on shell 1 run through through-hole 11
For pre-manufactured hole so that perforating job can be carried out after 1 tripping in of shell, avoid need to from well head tripping in spraycan, need to be in shell 1
The cumbersome problem of upper other punch operation, it is easy to operate, high-efficient, and strong applicability.The both ends of connected with outer casing 14 respectively with
Top connection 12 and lower contact 13 are threadedly coupled.Third sealing ring 15 between connected with outer casing 14 and top connection 12 and lower contact 13, with
Guarantee effective seal isolation of 1 inner cavity of shell.
As shown in Figures 9 to 11, in the present embodiment, by taking jet hose 21 is three groups as an example, completion practice perforating system
Construction operation process are as follows: (1) perforating system is with completion tubular column G.I.H, in completion practice, ball-off in completion tubular column
Completion tubular column inner cavity continues in pipe to pump acid filling liquid stream body, and overpressure increases, under the action of hydraulic pressuring difference, acid solution fluid warp
The combined sprinkler 22 of 21 ejection end of jet hose sprays, and rock pore-creating is realized under acid liquid corrosion and water-jet compound action.
Meanwhile the area of passage of combined sprinkler 22 becomes smaller to form chock pressure difference, jet hose 21 is stretched from shell 1 under waterpower draw
Out, it is limited at seal receptacle 5 until the front end of outermost jet hose 21 reaches, completes releasing completely for first order jet hose 21
It puts.(2) fixed displacement is improved in pipe and continues pump note, and primary shear pin 31 is cut after choke pressure reaches certain value, jet hose 21
Inner tube, middle tube continue to extend outwardly, when middle tube front end stop collar 41 and outer layer pipe end with cyclization 42 limit
When, second level jet hose 21 discharges completely.(3) continue to improve discharge capacity in pipe, when choke pressure continues to rise to certain pressure,
Secondary shear pin 32 is cut, inner tube continues to extend outwardly, when the stop collar 41 and middle layer pipe end of inner tube front end match cyclization
When 42 limit, third level jet hose 21 discharges completely.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (10)
1. one end of a kind of completion practice perforating system, including shell and nozzle assembly, the nozzle assembly is set to the shell
In vivo, the other end stretches out the shell, which is characterized in that and the nozzle assembly includes multiple jet hoses being successively arranged, with
And the combined sprinkler set on jet hose ejection end, the combined sprinkler include multiple points to connect one to one with jet hose
Body block, the adjacent jet hose are limited by the shear pin being set between split block；It is equipped between the adjacent jet hose
Limit assembly when inside tube extend out to outside pipe end with outboard tube limit cooperation.
2. completion practice perforating system according to claim 1, which is characterized in that the shear pin of limit outside jet hose
Intensity be less than limit inside jet hose shear pin intensity.
3. completion practice perforating system according to claim 2, which is characterized in that limit the shear pin of same jet hose
At least two, multiple shear pins are uniformly arranged along the circumferential direction of jet hose.
4. according to claim 1 to completion practice perforating system described in 3, which is characterized in that the limit assembly includes setting
Match cyclization in the stop collar of jet hose front end outer side, and on the inside of jet hose end, the inside tube is extend out to
When the pipe end of outside, the stop collar cooperates with cyclization limit.
5. according to claim 1 to completion practice perforating system described in 3 any one, which is characterized in that the combination spray
Head is equipped with the power stream channel being connected to jet hose inner cavity and point fluidic channel；Each spray in outermost jet hose
It penetrates hose and was equipped with recirculation hole, the jet hose inner cavity passed through recirculation hole and is connected to a point fluidic channel.
6. completion practice perforating system according to claim 5, which is characterized in that the total flow-passing surface for crossing recirculation hole
Product is greater than the power stream channel and divides total area of passage of fluidic channel.
7. completion practice perforating system according to claim 5, which is characterized in that it is described divide fluidic channel be it is multiple,
The center line of fluidic channel is divided to intersect described in each, the center line in the power stream channel and the crosspoint phase for dividing fluidic channel
It hands over.
8. according to claim 1 to completion practice perforating system described in 3 any one, which is characterized in that on the shell
Equipped with for jet hose pass through through through-hole, it is described to be equipped with through between through-hole and jet hose for guaranteeing that housing cavity is close
The seal receptacle of envelope, one end of jet hose described in outermost are equipped with the limiting section with seal receptacle limit cooperation.
9. completion practice perforating system according to claim 8, which is characterized in that the seal receptacle and jet hose it
Between be equipped with the first sealing ring, sealing ring and compression ring, first sealing ring and seal ring set are set to the outermost injection
On hose, and the compression ring by being bolted on seal receptacle adjusts sealing station；It the seal receptacle and is equipped between through-hole
Second sealing ring.
10. according to claim 1 to completion practice perforating system described in 3 any one, which is characterized in that the shell packet
Top connection, lower contact and connected with outer casing are included, the both ends of the connected with outer casing are threadedly coupled with top connection and lower contact respectively, described
Third sealing ring is equipped between connected with outer casing and top connection and lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114743.XA CN110118077B (en) | 2018-02-06 | 2018-02-06 | Perforating device for well completion operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114743.XA CN110118077B (en) | 2018-02-06 | 2018-02-06 | Perforating device for well completion operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110118077A true CN110118077A (en) | 2019-08-13 |
| CN110118077B CN110118077B (en) | 2021-06-04 |
Family
ID=67519367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810114743.XA Active CN110118077B (en) | 2018-02-06 | 2018-02-06 | Perforating device for well completion operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110118077B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151045A (en) * | 2022-02-07 | 2022-03-08 | 东营石油技术与装备产业研究院有限公司 | Adjustable perforating device for well completion operation |
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| US20090288833A1 (en) * | 2008-05-20 | 2009-11-26 | Halliburton Energy Services, Inc. | System and methods for constructing and fracture stimulating multiple ultra-short radius laterals from a parent well |
| US20130284440A1 (en) * | 2012-03-23 | 2013-10-31 | Wesley Mark McAfee | System, apparatus and method for abrasive jet fluid cutting |
| US20140096966A1 (en) * | 2012-10-08 | 2014-04-10 | Mr. Gary Freitag | Method and Apparatus for Completion of Heavy Oil Unconsolidated Sand Reservoirs |
| CN105443085A (en) * | 2014-09-24 | 2016-03-30 | 中国石油化工股份有限公司 | Oil gas exploitation apparatus and method |
| CN107407129A (en) * | 2015-02-24 | 2017-11-28 | 特种油管有限责任公司 | Downhole Hydraulic Jetting Components |
| CN107429542A (en) * | 2015-02-24 | 2017-12-01 | 特种油管有限责任公司 | Hydraulic jet nozzle and guidance system are manipulated for down hole drill device |
-
2018
- 2018-02-06 CN CN201810114743.XA patent/CN110118077B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090288833A1 (en) * | 2008-05-20 | 2009-11-26 | Halliburton Energy Services, Inc. | System and methods for constructing and fracture stimulating multiple ultra-short radius laterals from a parent well |
| US20130284440A1 (en) * | 2012-03-23 | 2013-10-31 | Wesley Mark McAfee | System, apparatus and method for abrasive jet fluid cutting |
| US20140096966A1 (en) * | 2012-10-08 | 2014-04-10 | Mr. Gary Freitag | Method and Apparatus for Completion of Heavy Oil Unconsolidated Sand Reservoirs |
| CN105443085A (en) * | 2014-09-24 | 2016-03-30 | 中国石油化工股份有限公司 | Oil gas exploitation apparatus and method |
| CN107407129A (en) * | 2015-02-24 | 2017-11-28 | 特种油管有限责任公司 | Downhole Hydraulic Jetting Components |
| CN107429542A (en) * | 2015-02-24 | 2017-12-01 | 特种油管有限责任公司 | Hydraulic jet nozzle and guidance system are manipulated for down hole drill device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151045A (en) * | 2022-02-07 | 2022-03-08 | 东营石油技术与装备产业研究院有限公司 | Adjustable perforating device for well completion operation |
| CN114151045B (en) * | 2022-02-07 | 2022-04-12 | 东营石油技术与装备产业研究院有限公司 | Adjustable perforating device for well completion operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110118077B (en) | 2021-06-04 |
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