CN104373091A - Sand blasting perforator - Google Patents
Sand blasting perforator Download PDFInfo
- Publication number
- CN104373091A CN104373091A CN201410608352.5A CN201410608352A CN104373091A CN 104373091 A CN104373091 A CN 104373091A CN 201410608352 A CN201410608352 A CN 201410608352A CN 104373091 A CN104373091 A CN 104373091A
- Authority
- CN
- China
- Prior art keywords
- impeller
- sand blasting
- rotary body
- nozzle
- blasting perforator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005488 sandblasting Methods 0.000 title claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 71
- 230000005540 biological transmission Effects 0.000 claims description 28
- 230000007246 mechanism Effects 0.000 claims description 26
- 239000008393 encapsulating agent Substances 0.000 claims description 7
- 239000011148 porous material Substances 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 26
- 239000003921 oil Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 5
- 239000003129 oil well Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Landscapes
- 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)
- Earth Drilling (AREA)
Abstract
The invention provides a sand blasting perforator which comprises a body, a rotating body, a nozzle and an impeller. The body is provided with an upper joint. An open pore is formed in the side wall of the body. The body is provided with a fluid channel communicated with the upper joint and the open pore. The rotating body is arranged in the open pore in a rotating mode and is coaxial with the open pore. The nozzle is arranged on the rotating body eccentrically. The impeller is arranged in the fluid channel in a rotating mode. When fluid passes through the fluid channel, the impeller can be driven by the fluid to rotate, so that the rotating body is driven to rotate. When the sand blasting perforator carries out sand blasting and perforating, the pore diameter of a perforating sleeve ranges from 20 mm to 50 mm and can be adjusted, and the pore diameter is increased compared with that of the prior art.
Description
Technical field
The present invention relates to oil and gas exploitation field, particularly relate to a kind of sand blasting perforator.
Background technology
Hydraulic jet perforation contains sand flow body on ground to shaft bottom pumping high pressure by oil pipe, high pressure sprays from nozzle containing sand flow body, in destination layer position, down-hole, sleeve-penetrating and cementing concrete ring are penetrated by place, and penetrate stratum certain depth, form the gas channel of certain diameter and the degree of depth.
When carrying out perforating job, this hole is the passage flowed into as oil exploitation process Crude Oil in pit shaft, and when oil well production, being more beneficial to oil gas flows out to pit shaft from stratum more greatly in the aperture in this hole, is more littlely more unfavorable for that oil gas flows out from stratum.According to No. ZL201220009979.5th, Chinese patent, the content that name is called " hydraulic sand blasting sand blasting perforator " discloses, existing sand blasting perforator nozzle is generally fixed relative to the position of tubing string.Like this in the operation of abrasive perforating, improve the aperture that nozzle penetrates sleeve-penetrating, the way in the aperture can thought by increase nozzle realizes.If but adopt the method to improve the aperture that nozzle in prior art penetrates sleeve-penetrating, so in order to maintain the range emitted by the flow velocity of the jet sprayed from nozzle and jet, the ability of the pump group equipment that this injection stream is provided must be increased, but in prior art, this pump group capacity of equipment is limited, can not increase arbitrarily.So in the ability of existing pump group, be difficult to improve the aperture that nozzle penetrates sleeve-penetrating.
Summary of the invention
The object of this invention is to provide a kind of energy and expand the sand blasting perforator penetrating the aperture of sleeve-penetrating.
Above-mentioned purpose of the present invention can adopt following technical proposal to realize: a kind of sand blasting perforator, and it comprises: the body with top connection, and the sidewall of described body offers perforate, and described body is provided with the fluid passage being communicated with described top connection and described perforate; That can rotate is arranged in described perforate, and the rotary body coaxial with described perforate; Be eccentrically set on the nozzle on described rotary body; The impeller be arranged in described fluid passage that can rotate, when have in fluid passage fluid by time, described impeller can be driven by described fluid and rotate, and then drive described rotary body to rotate.
Preferably, described sand blasting perforator comprises the transmission mechanism between described impeller and described rotary body, and the high-speed rotation of described impeller can be converted to slowly running of described rotary body by described transmission mechanism.
Preferably, described transmission mechanism comprises belt transmission, gear drive, and Chain conveyer, Worm Wheel System be a kind of or its combination wherein.
Preferably, described impeller and described rotary body are coaxially arranged.
Preferably, comprise the balance pipe be positioned on described body, described balance pipe is for balancing the external and internal pressure of described transmission mechanism.
Preferably, encapsulant is provided with between described rotary body and described perforate.
Preferably, encapsulant is provided with between described nozzle and described rotary body.
Preferably, described body is provided with lower contact away from one end of described top connection, and described lower contact adapts to and is connected with described top connection.
Preferably, described fluid passage is from described top connection to the through described body of described lower contact.
Preferably, the pivot center of described impeller is parallel with the pivot center of described rotary body.
Preferably, described nozzle have near described fluid passage arrival end and back to the port of export, the internal diameter of described nozzle reduces from described arrival end to the described port of export.
The beneficial effect of sand blasting perforator provided by the invention is: first, the present invention is in existing pump group limit of power, by arranging a kind of nozzle that can rotate around rotating shaft center on sand blasting perforator, make when abrasive perforating operation, the aperture that the rotating jet beam sleeve-penetrating that this nozzle is formed is formed can reach 20-50mm, expand the aperture penetrating sleeve-penetrating, when oil well production, the aperture after expansion is conducive to oil gas and flows out to pit shaft from stratum.Secondly, because nozzle can rotate around rotating shaft center, so the jet point of jet beam that this nozzle is formed can not be always overlapping with the backflow point of this jet beam, reduce the loss of the effluxvelocity that backflow effect causes, be conducive to forming darker perforation tunnel.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the right sectional view in fluid passage;
Fig. 3 is transmission mechanism schematic diagram;
Fig. 4 is fluid channel location figure;
Fig. 5 is nozzle revolute axes configuration schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the invention provides a kind of sand blasting perforator 9, it comprises: the body 10 with top connection 11, the sidewall of described body offers perforate 12, and described body is provided with the fluid passage 14 being communicated with described top connection 11 and described perforate 12; That can rotate is arranged in described perforate 12, and the rotary body 56 coaxial with described perforate 12; Be eccentrically set on the nozzle 18 on described rotary body 56; The impeller 20 be arranged in described fluid passage 14 that can rotate, when have in fluid passage 14 fluid by time, described impeller 20 can be driven by described fluid and rotate, and then drive described rotary body 56 to rotate.
Sand blasting perforator 9 provided by the invention, under the flow that existing equipment can provide, by arrange on sand blasting perforator 9 a kind of can around the nozzle 18 of rotary body 56 central rotation, make when abrasive perforating operation, the aperture that the rotating jet beam sleeve-penetrating that this nozzle 18 is formed is formed can reach 20-50mm, expand the aperture penetrating sleeve-penetrating, when oil well production, the aperture after expansion is conducive to oil gas and flows out to pit shaft from stratum.On the other hand, because nozzle 18 can around rotary body 56 central rotation, so the jet point of jet beam that this nozzle 18 is formed can not be always overlapping with the backflow point of this jet beam, reduce the loss of the effluxvelocity that backflow effect causes, be conducive to forming darker perforation tunnel.
Sand blasting perforator provided by the invention can be applied to oil well, the natural gas well.
As shown in Figure 1, in the present embodiment, the overall lengthwise of body 10 extends, have back to top 8 and bottom 13, top 8 is provided with top connection 11.Body 10 can be connected with outside high pressure fluid pump by top connection 11, and the high-pressure fluid provided to enable high pressure fluid pump enters in body 10.Annexation between top 8 with top connection 11 comprises: the two is one-body molded makes or the two adopts and is threaded, or the two welding.
The sidewall of body 10 is provided with perforate 12, is formed with fluid passage 14 between perforate 12 and top connection 11.After top connection 11 is connected with high pressure fluid pump, high-pressure fluid can arrive perforate 12 by fluid passage 14.
Fluid passage 14 is provided with impeller installation portion 24, this impeller installation portion 24 can at least accommodate impeller 20, and the part of this impeller installation portion 24 being accommodated impeller 20 is positioned at fluid passage 14, when flowing through impeller 20 to make high-pressure fluid, can impeller 20 rotate.In the present embodiment, impeller installation portion 24 comprises Part I 26, Part II 28 and Part III 35.This Part I 26, Part II 28 and Part III 35 are the entirety be communicated with, and Part II 28 is positioned at fluid passage 14 for accommodating impeller 20.
Between impeller installation portion 24 and perforate 12, be provided with transmission mechanism installation portion 38, this transmission mechanism installation portion 38 is for installing transmission mechanism 70.This transmission mechanism installation portion 38 comprises the second pinion mounting holes 40, second gear-bearing bore 42 and the 3rd pinion mounting holes 43.Second pinion mounting holes 40, second gear-bearing bore 42 is the entirety be communicated with the 3rd pinion mounting holes 43.Second pinion mounting holes 40 is connected with the Part I 26 of impeller installation portion 24, and the 3rd pinion mounting holes 43 is connected with perforate 12, so transmission mechanism installation portion 38 is connected with perforate 12 with impeller installation portion 24 respectively.
As shown in Figure 2, in the present embodiment, impeller 20 is positioned at fluid passage, when high-pressure fluid flows through fluid passage 14, impeller 20 is rotated impact impeller 20, produces rotation torque.Impeller 20 comprises impeller blade 21 and fixed part 23.Impeller blade 21 is along this fixed part 23 circumference distribution, and this impeller blade 21 quantity can arrive several less, how to tens.When high-pressure fluid flow through fluid passage 14 impact impeller time, fluid impact impeller blade 21 makes impeller 20 rotate, produce rotation torque.Fixed part 23 has a groove 29, impeller 20 is fixed on wheel rotation axle 30 by this groove 29, impeller 20 is fixed in the circumferential thus when impeller 20 rotates by fluid impact and drives this wheel rotation axle 30 to rotate, impeller 20 circumference does not occur and rotates relative to this wheel rotation axle 30.
As shown in Figure 1, wheel rotation axle 30 is located in impeller installation portion 24, comprises first end 25 and the second end 27.Part I 26, second end 27 that the first end 25 of impeller rotating shaft 30 is positioned at impeller installation portion 24 is positioned at the Part II 28 of impeller installation portion 24.Sealed by encapsulant between the first end 25 of impeller rotating shaft 30 and the Part I 26 of impeller installation portion 24, when making the fluid impact impeller 20 in fluid passage 14, do not have the Part I 26 that fluid flows into impeller installation portion 24.Second end 27 of impeller rotating shaft 30 is arranged on bearing support 34 by rolling bearing 32, and bearing support 34 is fixed in the Part III 35 of impeller installation portion 24.As shown in Figure 2, second end 27 of impeller rotating shaft 30 has the cavity 33 matched with the groove 29 on impeller fixed part 23, this cavity 33 matches with the groove 29 on impeller fixed part 23 formation vallecular cavity, this vallecular cavity is for holding key 31, this key 31 part is arranged in groove 29, another part is arranged in cavity 33, thus when wheel rotation, the groove 29 be positioned on impeller also rotates, because key 31 is arranged in groove 29, so this key 31 also rotates thereupon, again because key 31 is positioned at cavity 33, thus the impeller rotating shaft 30 at cavity 33 place is also driven to rotate.Being coordinated with vallecular cavity by key 31 is fixed on the second end 27 of impeller rotating shaft 30 by impeller 20, and this second end 27 is positioned at the Part II 28 of impeller installation portion 24 and the Part II 28 of impeller installation portion 24 is positioned at fluid passage 14, so impeller 20 is limited in fluid passage 14.When high-pressure fluid flows through fluid passage 14 from fluid pump, will impact impeller 20, impeller 20 is rotated, produce rotation torque, the rotation of impeller 20 is by the rotation of impeller axis of rotation 30.
As shown in Figure 1, in the present embodiment, rotary body 56 is arranged in perforate 12, and coaxially arranges with perforate 12, the rotation of perforate 12 and the rotation axis parallel of impeller rotating shaft 30, the thus rotation of rotary body 56 and the rotation axis parallel of impeller rotating shaft 30.Rotary body 56 is fixed in perforate 12 by rolling bearing 64, seals between rotary body 56 and perforate 12 with encapsulant 66.As shown in Figure 5, rotary body 56 is provided with the installation portion 55 of installation the 3rd gear 54, is connected between rotary body 56 with the 3rd gear 54 by interference fit.As shown in Figure 5, on rotary body 56, eccentric setting has nozzle installing hole 58, and this nozzle installing hole 58 is a through hole, is provided with nozzle 18 in through hole.When fluid is from fluid passage flow nozzle 18, finally can eject from nozzle 18.
As shown in Figure 5, in the present embodiment, nozzle 18 is fixed in nozzle installing hole 58, the axis of nozzle 18 and rotary body 56 axis being parallel.Adopt encapsulant to seal between nozzle 18 and nozzle installing hole 58, when making fluid flow into perforate 12 through fluid passage 14, can only flow out from nozzle 18.Nozzle 18 have close fluid passage 14 arrival end 60 and back to the port of export 62, the internal diameter of nozzle 18 reduces from this arrival end 60 to this port of export 62, make fluid when nozzle 18 flows out, the jet beam impact force of generation is strong, is conducive to the perforating job of jet beam sleeve-penetrating.Distance between the axis of nozzle 18 and the axis of rotary body 56 determines the pore size of jet beam sleeve-penetrating, make in the ability of existing pump group, by using different rotary bodies 56, change the distance between the axis of nozzle 18 and the axis of rotary body 56, realize this swivel nozzle when abrasive perforating operation, the aperture penetrating sleeve-penetrating is adjustable between 20-50mm.
In the present embodiment, transmission mechanism 70 is located between impeller 20 and rotary body 56, and the high-speed rotation of impeller 20 can be converted to slowly running of rotary body 56 by this transmission mechanism 70.Transmission mechanism 70 comprises belt transmission, gear drive, and Chain conveyer, Worm Wheel System be a kind of or its combination wherein; This transmission mechanism 70 can also be impeller shaft 30, and impeller 20 coaxially can be arranged with rotary body 56.
In the present embodiment, transmission mechanism 70 is located in transmission mechanism installation portion 38, and as shown in Figure 3, transmission mechanism 70 comprises the first gear 36, second gear 46 and the 3rd gear 54.First gear 36 is fixed on the first end 25 of impeller rotating shaft 30, is positioned at the first end 26 of impeller installation portion 24; Second gear 46 is positioned at the second pinion mounting holes 40 of transmission mechanism installation portion 38, and be fixed on the second gear shaft 48, rolling bearing is equipped with in one end of second gear shaft 48, rolling bearing is fixed on the second gear shaft holder 50, and the second gear shaft holder 50 is fixed in the second gear-bearing bore 42; 3rd gear 54 is fixed on rotary body 56, is positioned at the 3rd pinion mounting holes 43.First gear 36 is fixed on impeller rotating shaft 30, coaxially arranges with impeller 20, and one end of the second gear 46 is engaged with the first gear 36, and the other end engages with the 3rd gear 54.The tooth radius of the first gear 36, second gear 46 and the 3rd gear 54 is ascending to be increased progressively successively, so slowly running of high-speed rotation can being converted to of the reduction gearing mechanism be made up of the first gear 36, second gear 46 and the 3rd gear 54.Impact impeller 20 make impeller 20 produce rotation torque when high-pressure fluid flows through fluid passage 14, during high-speed rotation, impeller installation shaft 30 is rotated, thus the first gear 36 in impeller installation shaft 30 rotates, thus the second gear 46 rotates, thus the 3rd gear 54 rotates because the 3rd gear 54 interference fit be sheathed on rotary body 56, so will rotate by driven rotary body 56 when the 3rd gear 54 rotates.So the high-speed rotation of impeller 20 can be converted to slowly running of rotary body 56 by transmission mechanism 70.
As shown in Figure 4, in the present embodiment, body is provided with balance pipe 7, the upper end of this balance pipe 7 is communicated with top connection 11, and lower end is connected with the 3rd pinion mounting holes 43, for being introduced in the 3rd pinion mounting holes 43 by the high-pressure fluid in top connection 11.3rd gear 54 is installed in the 3rd pinion mounting holes 43 and the 3rd pinion mounting holes 43 is full of lubrication oil, high-pressure fluid is introduced in the 3rd pinion mounting holes 43, squeezing action will be produced to lubrication oil, this active force acts on the 3rd gear 54, thus produces axial external pressure F1 to the 3rd gear 54.On the other hand, when in high-pressure fluid incoming fluid passage 14, when ejecting from nozzle 18, active force along rotary body 56 axis is produced to rotary body 56, this active force acts on the 3rd gear 54 that fixes with rotary body 56, to the 3rd gear 54 produce axial in pressure F2, this interior pressure F2 and external pressure F1 offsets, the active force that the 3rd gear 54 being subject to this external and internal pressure is subject in the axial direction reduces, and is conducive to the rotation of transmission mechanism.
When high-pressure fluid from fluid pump flow out enter top connection 11 flow through fluid passage 14 time, impeller 20 will be impacted, produce rotation torque, the rotation of impeller 20 is by the rotation of impeller axis of rotation 30, the rotation being rotated through transmission mechanism 70 driving rotating bodies 56 of this impeller rotating shaft 30, and then bias is positioned at the nozzle 18 on rotary body 56 around the axis of rotary body 56 and rotates, high-pressure fluid arrives nozzle 18 through fluid passage, last injection from nozzle 18, form rotary irradiating a fluid stream, carry out casing-pipe cutting operation, the aperture can penetrating sleeve-penetrating formation is adjustable between 20-50mm.
As shown in Figure 1, in the present embodiment, be provided with lower contact 22 on 13 bottom sand blasting perforator body 10, the top connection 11 that this lower contact 22 adapts to sand blasting perforator body 10 top 8 connects.Through by fluid passage 14 between this top connection 11 and this lower contact 22.When perforation, according to the ability to work of oil reservoir quantity and pump, single sand blasting perforator or multiple sand blasting perforator can be taked to be cascaded use.
The foregoing is only several embodiments of the present invention, those skilled in the art can carry out various change or modification to the embodiment of the present invention according to content disclosed in application documents and not depart from the spirit and scope of the present invention.
Claims (11)
1. a sand blasting perforator, is characterized in that, it comprises:
Have the body of top connection, the sidewall of described body offers perforate, described body is provided with the fluid passage being communicated with described top connection and described perforate;
That can rotate is arranged in described perforate, and the rotary body coaxial with described perforate;
Be eccentrically set on the nozzle on described rotary body;
The impeller be arranged in described fluid passage that can rotate, when have in fluid passage fluid by time, described impeller can be driven by described fluid and rotate, and then drive described rotary body to rotate.
2. sand blasting perforator according to claim 1, it is characterized in that: described sand blasting perforator comprises the transmission mechanism between described impeller and described rotary body, the high-speed rotation of described impeller can be converted to slowly running of described rotary body by described transmission mechanism.
3. sand blasting perforator according to claim 2, is characterized in that: described transmission mechanism comprises belt transmission, gear drive, and Chain conveyer, Worm Wheel System be a kind of or its combination wherein.
4. sand blasting perforator according to claim 1, is characterized in that: described impeller and described rotary body are coaxially arranged.
5. sand blasting perforator according to claim 2, is characterized in that: comprise the balance pipe be positioned on described body, and described balance pipe is for balancing the external and internal pressure of described transmission mechanism.
6. sand blasting perforator according to claim 1, is characterized in that: be provided with encapsulant between described rotary body and described perforate.
7. sand blasting perforator according to claim 1, is characterized in that: be provided with encapsulant between described nozzle and described rotary body.
8. sand blasting perforator according to claim 1, is characterized in that: described body is provided with lower contact away from one end of described top connection, and described lower contact adapts to and is connected with described top connection.
9. sand blasting perforator according to claim 8, is characterized in that: described fluid passage is from described top connection to the through described body of described lower contact.
10. sand blasting perforator according to claim 1, is characterized in that: the pivot center of described impeller is parallel with the pivot center of described rotary body.
11. sand blasting perforator according to claim 1, is characterized in that: described nozzle have near described fluid passage arrival end and back to the port of export, the internal diameter of described nozzle reduces from described arrival end to the described port of export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608352.5A CN104373091A (en) | 2014-11-03 | 2014-11-03 | Sand blasting perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608352.5A CN104373091A (en) | 2014-11-03 | 2014-11-03 | Sand blasting perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373091A true CN104373091A (en) | 2015-02-25 |
Family
ID=52552255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410608352.5A Pending CN104373091A (en) | 2014-11-03 | 2014-11-03 | Sand blasting perforator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373091A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484709A (en) * | 2015-12-21 | 2016-04-13 | 中国石油天然气股份有限公司 | Sand-blast perforator |
| CN106285606A (en) * | 2016-10-27 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of rotatable nozzle-type double bunch hydraulic jetting fracturing tubing string and fracturing process |
| CN112814631A (en) * | 2021-04-01 | 2021-05-18 | 中国石油天然气股份有限公司 | Sand-blasting and well-washing integrated spray gun, abrasive water jet flow operation system and method |
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| CN101899949A (en) * | 2010-04-30 | 2010-12-01 | 辽宁工程技术大学 | Multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed |
| CN103835653A (en) * | 2014-03-25 | 2014-06-04 | 中国石油大学(北京) | Self-propelled rock debris grinding material straight-spinning jet mixing flow drill bit |
| CN204252972U (en) * | 2014-11-03 | 2015-04-08 | 中国石油天然气股份有限公司 | Sand blasting perforator |
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| US4369850A (en) * | 1980-07-28 | 1983-01-25 | The Curators Of The University Of Missouri | High pressure fluid jet cutting and drilling apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484709A (en) * | 2015-12-21 | 2016-04-13 | 中国石油天然气股份有限公司 | Sand-blast perforator |
| CN105484709B (en) * | 2015-12-21 | 2018-10-16 | 中国石油天然气股份有限公司 | Sand blasting perforator |
| CN106285606A (en) * | 2016-10-27 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of rotatable nozzle-type double bunch hydraulic jetting fracturing tubing string and fracturing process |
| CN112814631A (en) * | 2021-04-01 | 2021-05-18 | 中国石油天然气股份有限公司 | Sand-blasting and well-washing integrated spray gun, abrasive water jet flow operation system and method |
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Application publication date: 20150225 |