CN110080683A - A kind of hydraulic adjustable delay boring device - Google Patents
A kind of hydraulic adjustable delay boring device Download PDFInfo
- Publication number
- CN110080683A CN110080683A CN201910177503.9A CN201910177503A CN110080683A CN 110080683 A CN110080683 A CN 110080683A CN 201910177503 A CN201910177503 A CN 201910177503A CN 110080683 A CN110080683 A CN 110080683A
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- China
- Prior art keywords
- hydraulic
- delay
- hole
- sliding sleeve
- pressure
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
Abstract
The invention discloses a kind of hydraulic adjustable delay boring device, it is applied to realize and delays after a certain period of time in the perforation construction technology of aperture again.The device passes through two independent sealed hydraulic cavities of design, under hydraulic action pushes in central tube, the liquid of upper hydraulic cavities is flowed by delay hole to lower hydraulic pressure chamber, realizes the purpose of delay aperture, the delay bore dia of the device may be sized in processing simultaneously, realize the adjustable of delay length；On the other hand, the amount of liquid size of upper hydraulic cavities can realize the adjusting of delay length when device assembles.The aperture function of the device is accomplished that the circulation inside oil pipe between oil/gas well annular space.
Description
Technical field
The invention belongs in oil/gas well completion perforating field of operation, especially perforating oil gas well technology realize oil pipe in and ring
The technology to circulate between empty set pipe, in particular to a kind of hydraulic adjustable delay boring device.
Background technique
Hydraulic portiforium apparatus is the device being commonly used in perforating oil gas well, which realizes the perforating gun string of oil pipe conveying
The function of aperture in underground construction is completed to open the circulation passage in oil pipe between annular space casing, realizes that perforation construction is opened
The technique requirement in hole.For in conventional perforation construction, after pressurizeing in oil pipe, moment realizes aperture purpose, but certain spies
Different perforation construction technology needs aperture and other construction technology having times poor, generally requires to be pressurized to some pressure in oil pipe
Value first completes the techniques such as perforation, is delayed tens seconds later and arrives several hundred seconds, then realize aperture function, opens between oil pipe and casing
Circulation passage.By retrieval, the hydraulic delay boring device of such structure is not found.This patent proposes perforating oil gas well work
In skill, the time of delaying is adjustable, and the device of aperture function is realized by oil pipe internal pressurization.
Summary of the invention
Technical problem solved by the present invention is being all to open moment with boring device for current existing perforating oil gas well
Hole can not achieve the problem of delaying aperture after a certain period of time.The present invention takes mechanical hydraulic-pressure type theory structure, in oil/gas well aperture
On the basis of device, design two independent sealed hydraulic cavities, fill hydraulic oil, under hydraulic action, hydraulic cavities it is hydraulic
Oil flows to another sky hydraulic cavities by fine delay hole, realizes the purpose of delay, is completed at the same time aperture.
The technical scheme is that a kind of hydraulic adjustable delay boring device, which is characterized in that including upper body, under
Ontology and sliding sleeve；Upper body, lower body are connected with each other, and inside forms plenum chamber；
The cavity column of sliding sleeve generally both ends open, be located at plenum chamber in, one end withstand lower body not with upper body
One end of connection, the other end are connected by pin and upper body limit；Sliding sleeve outer wall is in multistage shape, is formed with the inner wall of upper body
Upper hydraulic cavities form lower hydraulic pressure chamber with the inner wall of lower body；Sliding sleeve is opened on the side wall between upper hydraulic cavities and lower hydraulic pressure chamber
There is pressure-bearing hole, pressure-bearing axially bored line is mutually perpendicular to sliding sleeve axis, while being circumferentially provided with annular groove in pressure-bearing hole corresponding position, annular
The inner wall of slot and upper body medium position is formed, and pressure-bearing hole is mutually communicated with the annular groove；On sliding sleeve lateral wall with sliding sleeve axis
It is arranged in parallel with a delay hole, position and the pressure-bearing hole in the hole that is delayed must be in staggered distribution, and may be selected to be symmetrical arranged, and be delayed axially bored line
It is parallel to each other with lower body axis, and the hole that is delayed is connected to upper hydraulic cavities and lower hydraulic pressure chamber；Upper body upper end and oil/gas well production are managed
Column connection, the upper end oral area of upper body enter liquid, and in the case where hydraulically full inside sliding sleeve, liquid is entered by pressure-bearing hole
Cavity acts on the pressure-bearing section of sealing ring formation, and sliding sleeve is pushed to slide to the open end direction of upper body, and sliding sleeve sliding is cut
Disconnected pin, sliding sleeve continue hydraulic intracavitary hydraulic oil in sliding compression and are flowed by the hole that is delayed into lower hydraulic pressure chamber, delay to slide
Speed, forming delay effect makes 4 complete apertures of recirculation hole after final delay.
A further technical solution of the present invention is: the upper body is the cavity column of both ends open, inner wall is multistage
Shape.
A further technical solution of the present invention is: the lower body is cavity column closed at one end open at one end, under
Body open end and upper body one end are coaxially connected, and inside forms plenum chamber；Lower body is on the side wall of closed port along axis
Line is symmetrically provided with through-hole as recirculation hole, and the axially bored line that circulates is mutually perpendicular to lower body axis.
A further technical solution of the present invention is: the upper hydraulic cavities fill hydraulic oil capacity no more than upper hydraulic cavities volume
3/4, the volume of lower hydraulic pressure chamber is greater than upper hydraulic cavities volume, and upper hydraulic cavities fill hydraulic oil capacity adjustable openings delay time.
A further technical solution of the present invention is: the aperture in the delay hole is in the processable setting of 0.5mm to 3mm, delay
Time adjustment is in 10s to 300s range.
A further technical solution of the present invention is: the sectional area of the sealing ring is greater than the sectional area of sealing ring, into holding
The pressure-bearing surface for pressing the liquid effects in hole to be formed in sealing ring pushes sliding sleeve to move upwards and realizes 4 recirculation hole apertures.
Invention effect
The technical effects of the invention are that: the beneficial effects of the present invention are embodied in the following aspects:
(1) the invention proposes the devices that a kind of innovative mechanical-hydraulic theory structure realizes delay aperture.
(2) the invention proposes a kind of two hydraulic cavities of reasonable layout to realize different function purpose, regulating delay time
And realize the structure of aperture.
(3) the invention proposes the ranges by adjusting delay pore diameter size, realize the adjusting control of delay time,
How much the assembly amount of another aspect hydraulic oil can also adjust delay time with small range.
Detailed description of the invention
Fig. 1 is hydraulic adjustable delay boring device schematic diagram.
Fig. 2 is upper body structural schematic diagram
Fig. 3 is lower body structural schematic diagram
Fig. 4 is shift sleeve structure schematic diagram
Fig. 5 is that upper and lower hydraulic cavities flow partial enlarged view
Fig. 6 is pressure-bearing pore structure partial enlarged view
Description of symbols: 1-upper body；2-sealing rings；3-piston rings；4-pins；5-upper hydraulic cavities；6-is sliding
Set；7-sealing rings；8-pressure-bearing holes；9-delay holes；10-lower hydraulic pressure chambers；11-recirculation holes；12-lower bodies；13-sealings
Circle；
Specific embodiment
Referring to Fig. 1-Fig. 6, a kind of hydraulic adjustable delay boring device device by upper body 1, sealing ring 2, piston ring 3,
It is pin 4, upper hydraulic cavities 5, sliding sleeve 6, sealing ring 7, pressure-bearing hole 8, delay hole 9, lower hydraulic pressure chamber 10, recirculation hole 11, lower body 12, close
The composition such as seal 13, sealing ring 14, sealing ring 15, sealing ring 16, the device are applied in perforating oil gas well tubing string, and oil is applied to
In gas well construction, the function that delay aperture is required in perforation construction technology is realized.
Upper body 1 is connect with lower body 12 by threaded sealing structure, and sliding sleeve 6 is filled by the way that pin 4 and piston ring 3 are fixed
Match, then in the whole center for being assemblied in upper body 1 and lower body 12.Upper hydraulic cavities 5 fill hydraulic oil capacity no more than upper hydraulic
The volume of the 3/4 of chamber volume, lower hydraulic pressure chamber 12 is greater than upper 5 volume of hydraulic cavities, and upper hydraulic cavities 5 fill hydraulic oil capacity adjustable openings
Delay time.The aperture in delay hole 9 is adjusted in the processable setting of 0.5mm to 3mm, delay time in 10s to 300s range.
Pin hole is distributed on piston ring 3, by assembling pin 4 in varying numbers, settable different aperture pressure.
The sectional area of sealing surface 2 (7) be greater than sealing surface 1 (2) sectional area, into pressure-bearing hole 8 liquid effects in sealing
Face 2 (7) pushes sliding sleeve 6 to move upwards and realizes 4 11 apertures of recirculation hole.
Sliding sleeve 6 moves upwards, and upper hydraulic cavities 5 have 1/4 cavity, and piston ring 3 has sheared pin 4, and upward sliding is upper hydraulic
The hydraulic oil of chamber 5 flows into lower hydraulic pressure chamber 10 by delay hole 9 and realizes delay function.
The method that the device is realized is that the upper end of upper body 1 can connect oil pipe, under original state, sealing ring 2 and sealing
It encloses 7 enclosure spaces and forms hydraulic cavities 5, the built-in hydraulic oil of upper hydraulic cavities 5, sealing ring 13 and 15 enclosure space of sealing ring are formed down
Hydraulic cavities 10,6 lower end of sliding sleeve and lower body 12 seal off, and form closed state to recirculation hole 11, sliding sleeve 6 and piston ring 3 are logical
It crosses pin 4 to be fixedly connected, while being limited at the interior stepped hole of upper body 1.The sealed section product that the sealing ring 7 of sliding sleeve 6 is formed
Greater than the sealed section product that sealing ring 2 is formed, under the promotion for sliding over fluid pressure, may be implemented to 1 open end of upper body
Sliding.
Hydraulically full in the centre bore of sliding sleeve 6 by pressurizeing in oil pipe under working condition, liquid passes through holding on sliding sleeve 6
Hole is pressed, sealing surface 2 (7) is acted on, as pressure increases, the pressure-bearing surface that the sealing ring 7 on sliding sleeve 6 is formed is than the formation of sealing ring 2
Pressure-bearing surface sectional area it is big, generate upward thrust, push 6 upward sliding of sliding sleeve, pressure increases to piston ring 3 and is enough to shear
The shear force that the pin 4 of disconnected distribution designs, the hydraulic oil of upper hydraulic cavities 5 starts to flow to lower hydraulic pressure chamber 10 later, upper hydraulic cavities 5
Running of hydraulic power oil time, represent delay time, until recirculation hole 11 thoroughly open, realize delay aperture purpose.
Claims (6)
1. a kind of hydraulic adjustable delay boring device, which is characterized in that including upper body (1), lower body (2) and sliding sleeve (3)；On
Ontology (1), lower body (2) are connected with each other, and inside forms plenum chamber；
The cavity column of sliding sleeve (3) generally both ends open, be located at plenum chamber in, one end withstand lower body (2) not with upper
One end of body (1) connection, the other end are connected by pin (4) and upper body (1) limit；Sliding sleeve (3) outer wall is in multistage shape, and upper
The inner wall of ontology (1) forms hydraulic cavities (5), forms lower hydraulic pressure chamber (10) with the inner wall of lower body (2)；Sliding sleeve (3) is located at upper
It is provided on side wall between hydraulic cavities (5) and lower hydraulic pressure chamber (10) pressure-bearing hole (8), pressure-bearing hole (8) axis and sliding sleeve (3) axis phase
It is mutually vertical, while annular groove, the inner wall of annular groove and upper body (1) medium position are circumferentially provided in pressure-bearing hole (8) corresponding position
It is formed, pressure-bearing hole (8) are mutually communicated with the annular groove；A delay hole is arranged in parallel on sliding sleeve lateral wall with sliding sleeve axis
(9), the position of delay hole (9) must be in staggered distribution with pressure-bearing hole (8), may be selected to be symmetrical arranged, and be delayed hole (9) axis and lower body
(2) axis is parallel to each other, and hydraulic cavities (5) and lower hydraulic pressure chamber (10) in hole (9) connection that is delayed；Upper body (1) upper end and oil gas
The connection of well flow string, the upper end oral area of upper body (1) enter liquid, in the case where sliding sleeve (3) is internal hydraulically full, liquid
Enter cavity by pressure-bearing hole (8), act on the pressure-bearing section of sealing ring (7) formation, pushes sliding sleeve (3) to upper body (1)
Pin (4) are cut in the sliding of open end direction, sliding sleeve sliding, and it is logical that sliding sleeve continues the hydraulic oil in sliding compression in hydraulic cavities (5)
Delay hole (9) flowing into lower hydraulic pressure chamber (10) is crossed, sliding speed is delayed, forming delay effect makes 4 after final delay
The complete aperture of a recirculation hole (11).
2. a kind of hydraulic adjustable delay boring device as described in claim 1, which is characterized in that the upper body (1) is two
The cavity column of end opening, inner wall are multistage shape.
3. a kind of hydraulic adjustable delay boring device as described in claim 1, which is characterized in that the lower body (2) is one
End opening cavity column closed at one end, lower body (2) open end and upper body (1) one end are coaxially connected, and inside forms empty
Chamber；Lower body (2) is provided with through-hole as recirculation hole along axisymmetrical on the side wall of closed port, and circulate axially bored line and
Lower body (2) axis is mutually perpendicular to.
4. a kind of hydraulic adjustable delay boring device as described in claim 1, which is characterized in that upper hydraulic cavities (5) dress
Hydraulic oil capacity is not more than the 3/4 of upper hydraulic cavities volume, and the volume of lower hydraulic pressure chamber (12) is greater than upper hydraulic cavities (5) volume, upper liquid
Pressure chamber (5) fills hydraulic oil capacity adjustable openings delay time.
5. a kind of hydraulic adjustable delay boring device as described in claim 1, which is characterized in that the hole of delay hole (9)
Diameter is adjusted in the processable setting of 0.5mm to 3mm, delay time in 10s to 300s range.
6. a kind of hydraulic adjustable delay boring device as described in claim 1, which is characterized in that the sealing ring (7) is cut
Area is greater than the sectional area of sealing ring (2), and the liquid effects into pressure-bearing hole (8) are pushed in the pressure-bearing surface that sealing ring (7) is formed
Sliding sleeve (6), which moves upwards, realizes 4 recirculation hole (11) apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177503.9A CN110080683B (en) | 2019-03-09 | 2019-03-09 | Hydraulic adjustable time delay tapping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177503.9A CN110080683B (en) | 2019-03-09 | 2019-03-09 | Hydraulic adjustable time delay tapping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110080683A true CN110080683A (en) | 2019-08-02 |
| CN110080683B CN110080683B (en) | 2020-12-01 |
Family
ID=67412337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910177503.9A Active CN110080683B (en) | 2019-03-09 | 2019-03-09 | Hydraulic adjustable time delay tapping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110080683B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200975242Y (en) * | 2006-11-11 | 2007-11-14 | 华东石油局试采大队 | Horizontal well perforating hydraulic time-delay impacting assembly |
| CN201310318Y (en) * | 2008-11-27 | 2009-09-16 | 西部钻探克拉玛依钻井工艺研究院 | Automatic-reset hydraulic grading hoop |
| US20150369040A1 (en) * | 2013-03-07 | 2015-12-24 | Geodynamics, Inc. | Hydraulic Delay Toe Valve System and Method |
| CN207437007U (en) * | 2017-10-24 | 2018-06-01 | 中石化石油工程技术服务有限公司 | Hydraulic delay switch DP formula sliding sleeve |
| WO2019023363A1 (en) * | 2017-07-25 | 2019-01-31 | Hunting Titan, Inc. | Hydraulic time delay actuated by the energetic output of a perforating gun |
| CN109339757A (en) * | 2018-08-21 | 2019-02-15 | 中国石油天然气股份有限公司 | A kind of delay sliding sleeve |
| US10208565B2 (en) * | 2012-03-20 | 2019-02-19 | Flowpro Well Technology a.s. | System and method for delaying actuation using a destructible impedance device |
-
2019
- 2019-03-09 CN CN201910177503.9A patent/CN110080683B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200975242Y (en) * | 2006-11-11 | 2007-11-14 | 华东石油局试采大队 | Horizontal well perforating hydraulic time-delay impacting assembly |
| CN201310318Y (en) * | 2008-11-27 | 2009-09-16 | 西部钻探克拉玛依钻井工艺研究院 | Automatic-reset hydraulic grading hoop |
| US10208565B2 (en) * | 2012-03-20 | 2019-02-19 | Flowpro Well Technology a.s. | System and method for delaying actuation using a destructible impedance device |
| US20150369040A1 (en) * | 2013-03-07 | 2015-12-24 | Geodynamics, Inc. | Hydraulic Delay Toe Valve System and Method |
| WO2019023363A1 (en) * | 2017-07-25 | 2019-01-31 | Hunting Titan, Inc. | Hydraulic time delay actuated by the energetic output of a perforating gun |
| CN207437007U (en) * | 2017-10-24 | 2018-06-01 | 中石化石油工程技术服务有限公司 | Hydraulic delay switch DP formula sliding sleeve |
| CN109339757A (en) * | 2018-08-21 | 2019-02-15 | 中国石油天然气股份有限公司 | A kind of delay sliding sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110080683B (en) | 2020-12-01 |
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