CN109915088A - A kind of underground laser perforating system of umbilical transmission laser - Google Patents
A kind of underground laser perforating system of umbilical transmission laser Download PDFInfo
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- CN109915088A CN109915088A CN201910241216.XA CN201910241216A CN109915088A CN 109915088 A CN109915088 A CN 109915088A CN 201910241216 A CN201910241216 A CN 201910241216A CN 109915088 A CN109915088 A CN 109915088A
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- focalizer
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Abstract
The present invention relates to a kind of downhole perforation devices, and in particular to a kind of underground laser perforating system of umbilical transmission laser.It is made of central tube, top connection, lower contact, umbilical connector, focalizer and support sleeve, is equipped with focalizer by inner convex platform in central tube, and focalizer one end is equipped with umbilical connector, and one end of umbilical connector and focalizer connect；The focalizer other end is equipped with support sleeve, and support sleeve is provided with reflecting mirror.The underground laser perforating system carries out perforating job using the high-energy ray of laser, casing caused by traditional perforation can be effectively avoided to rupture leakage at perforation, and eyelet surrounding rock blocks eyelet because of rupture, simultaneously laser thermal effect should be able to it is a degree of improve rock stratum petro-gas permeation efficiency, improve oil well recovery ratio.It is low to solve existing perforating bullet functional reliability, not quick-fried phenomenon, perforation distribution fixation the problem of cannot being adjusted flexibly, use work progress especially suitable for perforating job frequent occurrence.
Description
Technical field
The present invention relates to a kind of downhole perforation devices, and in particular to a kind of underground laser perforation dress of umbilical transmission laser
It sets.
Background technique
Key link of the gun perforation process as completion technique, has direct relation with Oil & Gas Productivity.Perforating technology at present
Mode of movement is broadly divided into: cable transfer perforation, tubing string transmission perforation, flexible pipe conveying gun perforation.And perforator is classified are as follows: conventional
Perforator, super deep penetration perforator, big-role perforator, high shot density perforator (20 holes/rice), sand control perforation, composite perforator
Etc. diversified forms.The final purpose of perforation is that reliable, effective channel is established between layer of oil gas production and pit shaft, to improve oil
The output effect of gas.Perforation is to open casing, cement sheath and stratum using mechanical, chemistry or other energy, links up oil-gas reservoir
The underground work in channel.Conventional jet perforating is the high-velocity wire particle flux formed using perforating bullet explosion, is formed one very high
The impulse load (shock wave) of temperature and pressure is hit target plate (casing, cement sheath, rock), will be all in its motion profile
Substance all squeezes, and a hole or duct are formed in rock target.Rock particles is destroyed and cannot be returned to original state,
Generate physical deformation or secondary fracture has one to penetrate to generate typical perforating damage area rock assemblage structure around duct
Hole compacted region, the region endoparticle is broken, and bulky grain quantity is reduced, and little particle quantity increases, and contacts between particle fine and close.
In the prior art, perforating gun shell hole technology, explosive management require harshness, and perforating bullet functional reliability is low, applies
Work process frequent occurrence fix, cannot be adjusted flexibly, and can be only formed circular hole, the course of work by not quick-fried phenomenon, perforation distribution
Mechanical shock is larger, has very major injury to pipe string and well cementation, perforation gun body reuse rate is low to wait a series of problems, and not
It can effectively solve current perforating parameter problem, such as wear depth, aperture.
Summary of the invention
It is an object of the invention to: a kind of well of efficient, environmentally friendly umbilical transmission laser for cooperating continuous pipe to use is provided
Lower laser perforating system, the device carry out perforating job using the high-energy ray of laser, can effectively avoid caused by traditional perforation
Casing ruptures leakage at perforation and eyelet surrounding rock blocks eyelet because of rupture, meanwhile, it should be able to using the thermal effect of laser
The petro-gas permeation efficiency of rock stratum is improved to a certain extent, and then improves the recovery ratio of oil well.
The technical scheme is that
A kind of underground laser perforating system of umbilical transmission laser, it is by central tube, top connection, lower contact, umbilical connector, focusing
Device and support sleeve are constituted, and the threaded one end of central tube is equipped with top connection, and the other end screw thread of central tube is equipped with lower contact；Its
It being characterized in that: focalizer being equipped with by inner convex platform in central tube, focalizer one end is equipped with umbilical connector by fixed end cap,
One end of umbilical connector and focalizer connect；The focalizer other end is equipped with support sleeve by clamp-screw, in support sleeve
Equipped with reflecting mirror.
The focalizer is by shell, limit sleeve, mounting rack, assembly fixture, upper alignment mirror, lower alignment mirror and focus lamp structure
At；The shell is that variable diameter is cylindric, is fixed with mounting rack by limit sleeve in shell；Mounting rack passes through limit central spacer installation
There are upper alignment mirror, lower alignment mirror and focus lamp；Anti-reflection mirror is fixed with by assembly fixture in the shell of focus lamp side.
The upper alignment mirror is two-sided convex lens, and lower alignment mirror and focus lamp are respectively single side convex lens.
The support sleeve and top connection is respectively goblet, is evenly distributed on the corresponding support sleeve circumference of reflecting mirror in 120 degree
There is reflection hole.
The reflecting mirror is taper triangular prism.
It is evenly equipped with pilot hole in 120 degree on the central tube circumference, pilot hole is provided with dust-proof anti-reflection mirror.
The pilot hole is arranged with reflection hole in corresponding shape.
The limit sleeve is diameter-changing body, is provided with horn-like through-hole on limit sleeve.
The shell is made of upper housing, middle shell and lower case, by solid between upper housing, middle shell and lower case
Tight bolt is fixed to each other, and limit convex shoulder is provided on the inner wall of upper housing；Sealing ring is provided between upper housing and limit sleeve.
Centre bore is provided on the umbilical connector；
For the fixation end cap in bowl-shape, fixing end base portion is provided centrally with through-hole.
The beneficial effects of the present invention are:
The underground laser perforating system of the umbilical transmission laser carries out perforating job using the high-energy ray of laser, can effectively avoid
Casing caused by traditional perforation ruptures leakage at perforation and eyelet surrounding rock blocks eyelet, while laser because of rupture
Thermal effect should be able to it is a degree of improve rock stratum petro-gas permeation efficiency, improve oil well recovery ratio.Solves existing perforating bullet work
It is low to make reliability, not quick-fried phenomenon, perforation distribution fixation are particularly suitable the problem of cannot being adjusted flexibly frequent occurrence for work progress
It is used in perforating job.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the overlooking structure diagram of reflecting mirror of the invention；
Fig. 3 is working state schematic representation of the invention.
In figure: 1, central tube, 2, top connection, 3, lower contact, 4, umbilical connector, 5, support sleeve, 6, inner convex platform, 7, limit
Set, 8, mounting rack, 9, assembly fixture, 10, upper alignment mirror, 11, lower alignment mirror, 12, focus lamp, 13, upper housing, 14, middle shell,
15, lower case, 16, stop collar, 17, anti-reflection mirror, 18, fixed end cap, 19, clamp-screw, 20, reflecting mirror, 21, reflection hole, 22,
Pilot hole, 23, dust-proof anti-reflection mirror, 24, inlet and outlet.
Specific embodiment
The underground laser perforating system of the umbilical transmission laser by central tube 1, top connection 2, lower contact 3, umbilical connector 4,
Focalizer and support sleeve 5 are constituted, and the threaded one end of central tube 1 is equipped with top connection 2, and top connection 2 is goblet, to central tube
1 one end, which is formed, to be blocked, and the other end screw thread of central tube 1 is equipped with lower contact 3；Inner convex platform 6, inner convex platform 6 are provided in central tube 1
On be provided with through-hole, focalizer is equipped with by inner convex platform 6 in central tube 1.Focalizer is by shell, limit sleeve 7, mounting rack 8, dress
It is constituted with frame 9, upper alignment mirror 10, lower alignment mirror 11 and focus lamp 12.Shell is that variable diameter is cylindric, shell by upper housing 13, in
Shell 14 and lower case 15 are constituted, and are fixed to each other between upper housing 13, middle shell 14 and lower case 15 by clamping bolt, mesh
The assembly for being easy for each components in shell；Limit convex shoulder is provided on the inner wall of upper housing 13.
Limit sleeve 7 is equipped with by limit convex shoulder in upper housing 13, limit sleeve 7 is diameter-changing body, is provided with loudspeaker on limit sleeve
The through-hole of shape；Sealing ring is provided between upper housing 13 and limit sleeve 7.Installation is fixed in the middle shell 14 of 7 side of limit sleeve
Frame 8；Alignment mirror 10, lower alignment mirror 11 and focus lamp 12 are equipped with by the interval of stop collar 16 on mounting rack 8；Upper alignment mirror 10
For two-sided convex lens, lower alignment mirror 11 and focus lamp 12 are respectively single side convex lens.Pass through assembly fixture 9 in the shell of 12 side of focus lamp
It is fixed with anti-reflection mirror 17.
13 one end of upper housing of focalizer passes through fixed end cap 18 and is equipped with umbilical connector 4, one end of umbilical connector 4 and poly-
The limit sleeve 7 of burnt device connects；Centre bore is provided on umbilical connector 4；Fixed end cap 18 is in bowl-shape, fixed 18 bottom of end cap
It is provided centrally with through-hole, in order to penetrating for optical cable；When assembly, pass through the end face of lower contact 3, fixed end cap 18 and inner convex platform 6
Cooperation, realize axially position in central tube 1 of umbilical connector 4 and focalizer.
Support sleeve 5 is equipped with by clamp-screw 19 in the lower case 15 of the focalizer other end, is set on 15 circumference of lower case
The groove by axis direction is set, lower case 15 is slidably connected by clamp-screw 19 and the cooperation of groove, passes through clamp-screw 19
Elastic adjusting support sleeve 5 can be made to slide in lower case 15, with adjust support sleeve 5 assembly axial distance.Support sleeve 5 is built-in
There is reflecting mirror 20；Reflecting mirror 20 is taper triangular prism.
The support sleeve 5 of the laser perforating system and top connection 2 are respectively goblet, the corresponding support sleeve 5 of reflecting mirror 20 circle
120 degree of Zhou Shangcheng are evenly equipped with reflection hole 21.Pilot hole 22, pilot hole 22 and reflection hole are evenly equipped in 120 degree on 1 circumference of central tube
21 in corresponding shape setting；Pilot hole 22 is provided with dust-proof anti-reflection mirror 23.
It is respectively set between middle shell 14 and mounting rack 8 between the limit sleeve 7 and upper housing 13 of the laser perforating system
There is annular space, the gas of annular space can be passed in and out by the inlet and outlet 24 being arranged on upper housing 13 and middle shell 14；To annular space inside
Cool down.
When the laser perforating system works, top connection 2 installs lower stabilizer for connecting, and lower contact 3 is for connecting installation
Upper stabilizer, fiber cable joint lower end extend to the centre bore of umbilical connector 4 through upper stabilizer and are threadedly coupled with umbilical connector 4；
After the laser perforating system enters underground work region, the laser generated by well head laser generator is penetrated via umbilical and the laser
Aperture apparatus connection, laser focus under the action of focus lamp 12 after through lower collimating mirror 11 and the calibration filtering of upper collimating mirror 20
And along axial incidence, meanwhile, increased by anti-reflection mirror 17 and focused to reinforce the energy of laser, the laser irradiation axially injected is anti-
It penetrates and forms reflection on mirror 20, radially each 120 ° of directions are projected, then on the casing or formation through the dust-proof anti-reflection effect of mirror 23,
To carry out first time perforation, after the completion of first time perforation, by regulating and controlling the coil tubing unit of well head, continuous Guan Shangti is controlled
Certain distance can carry out second of perforation, so the perforating job of circulation realization continuous high-efficient.
The underground laser perforating system carries out perforating job using the high-energy ray of laser, can effectively avoid traditional perforation from leading
The casing of cause ruptures leakage at perforation and eyelet surrounding rock blocks eyelet because of rupture, while the thermal effect of laser should be able to
A degree of petro-gas permeation efficiency for improving rock stratum, improves oil well recovery ratio.It is low to solve existing perforating bullet functional reliability,
Work progress frequent occurrence fix, the problem of cannot being adjusted flexibly, make especially suitable for perforating job by not quick-fried phenomenon, perforation distribution
With.
Claims (9)
1. a kind of underground laser perforating system of umbilical transmission laser, it is by central tube (1), top connection (2), lower contact (3), pipe
Cable joint (4), focalizer and support sleeve (5) are constituted, and the threaded one end of central tube (1) is equipped with top connection (2), central tube (1)
The other end screw thread lower contact (3) are installed；It is characterized by: focalizer is installed by inner convex platform (6) in central tube (1),
Focalizer one end passes through fixed end cap (18) and is equipped with umbilical connector (4), and one end of umbilical connector (4) contacts company with focalizer
It connects；The focalizer other end is equipped with support sleeve (5) by clamp-screw (19), and support sleeve (5) is provided with reflecting mirror (20).
2. the underground laser perforating system of a kind of umbilical transmission laser according to claim 1, it is characterised in that: it is described
Focalizer is by shell, limit sleeve (7), mounting rack (8), assembly fixture (9), upper alignment mirror (10), lower alignment mirror (11) and focus lamp
(12) it constitutes；The shell is that variable diameter is cylindric, is fixed with mounting rack (8) by limit sleeve (7) in shell；Mounting rack (8) is logical
It crosses stop collar (16) interval and alignment mirror (10), lower alignment mirror (11) and focus lamp (12) is installed；Focus lamp (12) side
Anti-reflection mirror (17) are fixed with by assembly fixture (9) in shell.
3. the underground laser perforating system of a kind of umbilical transmission laser according to claim 2, it is characterised in that: described is upper
Being straightened mirror (10) is two-sided convex lens, and lower alignment mirror (11) and focus lamp (12) are respectively single side convex lens.
4. the underground laser perforating system of a kind of umbilical transmission laser according to claim 1, it is characterised in that: the branch
Support set (5) and top connection (2) are respectively goblet, are evenly equipped on corresponding support sleeve (5) circumference of reflecting mirror (20) in 120 degree anti-
Perforation (21).
5. the underground laser perforating system of a kind of umbilical transmission laser according to claim 4, it is characterised in that: described is anti-
Penetrating mirror (20) is taper triangular prism.
6. the underground laser perforating system of a kind of umbilical transmission laser according to claim 1, it is characterised in that: in described
It is evenly equipped with pilot hole (22) on heart pipe (1) circumference in 120 degree, pilot hole (22) is provided with dust-proof anti-reflection mirror (23) pilot hole (22)
It is arranged with reflection hole (21) in corresponding shape.
7. the underground laser perforating system of a kind of umbilical transmission laser according to claim 2, it is characterised in that: the limit
Position set (7) is diameter-changing body, and limit sleeve is provided with horn-like through-hole on (7).
8. the underground laser perforating system of a kind of umbilical transmission laser according to claim 2, it is characterised in that: the shell
Body is made of upper housing (13), middle shell (14) and lower case (15), upper housing (13), middle shell (14) and lower case (15) it
Between be fixed to each other by clamping bolt, be provided with limit convex shoulder on the inner wall of upper housing (13)；Upper housing (13) and limit sleeve (7)
Between be provided with sealing ring.
9. the underground laser perforating system of a kind of umbilical transmission laser according to claim 1, it is characterised in that: the pipe
Cable joint is provided with centre bore on (4)；In bowl-shape, fixed end cap (18) bottom centre is provided with logical the fixation end cap (18)
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910241216.XA CN109915088B (en) | 2019-03-28 | 2019-03-28 | Underground laser perforating device for conveying laser by pipe cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910241216.XA CN109915088B (en) | 2019-03-28 | 2019-03-28 | Underground laser perforating device for conveying laser by pipe cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109915088A true CN109915088A (en) | 2019-06-21 |
| CN109915088B CN109915088B (en) | 2021-04-27 |
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ID=66967289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910241216.XA Active CN109915088B (en) | 2019-03-28 | 2019-03-28 | Underground laser perforating device for conveying laser by pipe cable |
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| Country | Link |
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| CN (1) | CN109915088B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6147754A (en) * | 1995-03-09 | 2000-11-14 | The United States Of America As Represented By The Secretary Of The Navy | Laser induced breakdown spectroscopy soil contamination probe |
| US20090133871A1 (en) * | 2004-11-12 | 2009-05-28 | Skinner Neal G | Drilling, perforating and formation analysis |
| CN102155199A (en) * | 2011-02-01 | 2011-08-17 | 西北大学 | Petroleum underground laser perforation well completion device |
| WO2012031009A1 (en) * | 2010-08-31 | 2012-03-08 | Foro Energy Inc. | Fluid laser jets, cutting heads, tools and methods of use |
| CN104816086A (en) * | 2015-04-17 | 2015-08-05 | 温州大学 | Pipe inner wall laser machining head |
| CN105392954A (en) * | 2013-06-10 | 2016-03-09 | 沙特阿拉伯石油公司 | Downhole deep tunneling tool and method using high power laser beam |
| WO2016090229A1 (en) * | 2014-12-04 | 2016-06-09 | Saudi Arabian Oil Company | High power laser-fluid guided beam for open hole oriented fracturing |
| CN206655682U (en) * | 2017-04-26 | 2017-11-21 | 长春理工大学光电信息学院 | A kind of laser perforating system of analogue perforation bullet track |
-
2019
- 2019-03-28 CN CN201910241216.XA patent/CN109915088B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6147754A (en) * | 1995-03-09 | 2000-11-14 | The United States Of America As Represented By The Secretary Of The Navy | Laser induced breakdown spectroscopy soil contamination probe |
| US20090133871A1 (en) * | 2004-11-12 | 2009-05-28 | Skinner Neal G | Drilling, perforating and formation analysis |
| WO2012031009A1 (en) * | 2010-08-31 | 2012-03-08 | Foro Energy Inc. | Fluid laser jets, cutting heads, tools and methods of use |
| CN102155199A (en) * | 2011-02-01 | 2011-08-17 | 西北大学 | Petroleum underground laser perforation well completion device |
| CN105392954A (en) * | 2013-06-10 | 2016-03-09 | 沙特阿拉伯石油公司 | Downhole deep tunneling tool and method using high power laser beam |
| WO2016090229A1 (en) * | 2014-12-04 | 2016-06-09 | Saudi Arabian Oil Company | High power laser-fluid guided beam for open hole oriented fracturing |
| CN104816086A (en) * | 2015-04-17 | 2015-08-05 | 温州大学 | Pipe inner wall laser machining head |
| CN206655682U (en) * | 2017-04-26 | 2017-11-21 | 长春理工大学光电信息学院 | A kind of laser perforating system of analogue perforation bullet track |
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| Publication number | Publication date |
|---|---|
| CN109915088B (en) | 2021-04-27 |
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