CN202970575U - High-pressure jet flow and negative pressure suction blockage removal device - Google Patents
High-pressure jet flow and negative pressure suction blockage removal device Download PDFInfo
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- CN202970575U CN202970575U CN201220528986.6U CN201220528986U CN202970575U CN 202970575 U CN202970575 U CN 202970575U CN 201220528986 U CN201220528986 U CN 201220528986U CN 202970575 U CN202970575 U CN 202970575U
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- 239000007921 spray Substances 0.000 claims abstract description 31
- 238000009987 spinning Methods 0.000 claims description 68
- 238000007789 sealing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000001404 mediated effect Effects 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000541 pulsatile effect Effects 0.000 description 2
- 206010010214 Compression fracture Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
The utility model discloses a stifled device is separated with negative pressure suction to high-pressure efflux, negative pressure suction back-drainage including connecting gradually from top to bottom is separated stifled device (1), bleeder (2), single current valve (3), rotate connecting device (4), autogyration sprayer (5), oblique nozzle (51) are installed in the autogyration sprayer (5) of the device, can produce a tangential force and be used for peeling off the jam behind oblique nozzle (51) spun high-pressure rivers reaching the unblock position, autogyration sprayer can also autogyration when the water spray simultaneously, make rivers produce impact fatigue to the unblock position, make the jam more easily not hard up, break away from, the device not only separates stifled effectual, and work efficiency is high. In addition, after the high-pressure water jet flow is used for unblocking, impurities are discharged out of the ground by adopting a negative pressure suction method, and the problem of pollution and blockage of an oil layer can be better solved.
Description
Technical field
The utility model relates to the oil output apparatus field, particularly a kind of high-pressure spray and negative pressure suction plug-removing device for oil well production increasing.
Background technology
Along with deepening continuously of oil field development, because the oil layer pollutions former thereby that cause such as operation, well-flushing have caused oil well productivity decline.Be de-plugging of well in order to have adopted multiple technologies to oil well volume increase people, high pressure water jet is exactly wherein a kind of, this technology is that the physical actions such as low frequency hydraulic blow, high-frequency sasser and cavitation noise that utilize high-pressure water jet to produce will combine, make near the obstruction of the formation void of perforation borehole become flexible, come off, near well, the rock on stratum also can produce tired microcrack net under the repeated action of this waterpower pulse and ripple simultaneously, thereby recover and improve the permeability on stratum, solve the blockage problem of oil reservoir.As Chinese patent CN 201908641U, " a kind of hydraulic impact compression fracture plug removing device " disclosed on July 27th, 2011, this device is exactly to adopt high pressure water jet to be used for de-plugging of well.But this technology in use the High-Pressure Water that ejects of plug-removing device can only vertical impact to need the position of de-plugging, current to peel off the effect of obstruction limited, current can be pressed into the gap with obstruction and further result in blockage even sometimes.
The utility model content
In order to solve the vertical poor technical problem of position plugging removal effect that needs de-plugging of spraying of prior art mesohigh current, the utility model provides a kind of high-pressure spray and negative pressure suction plug-removing device, the spinning ejector of this device is equipped with oblique nozzle, tiltedly the High-Pressure Water of nozzle ejection acts on tangential force of obstruction surface meeting output for peeling off obstruction, more easily make obstruction become flexible, break away from, not only plugging removal effect is good, and high efficiency.
the utility model for the technical scheme that solves its technical problem employing is: a kind of high-pressure spray and negative pressure suction plug-removing device, comprising from top to bottom that the negative pressure suction that connects is successively returned mediates block apparatus, bleeder, ball-and-seat, rotary connecting device, the spinning ejector, the spinning ejector is connected with the rotary connecting device rotary seal, the surface of spinning ejector is provided with at least one oblique nozzle, tiltedly the angle between the diameter of the axis of nozzle and the axis that passes oblique nozzle and the spinning ejector of the crossing focus in spinning ejector surface is greater than 0 ° and less than or equal to 90 °.
Tiltedly nozzle is arranged on the surface of spinning ejector, the High-Pressure Water that oblique nozzle ejection goes out can be to position one impact force that needs de-plugging, this impact force can be decomposed into pressure and a tangential shearing force radially, this shearing force is used for peeling off obstruction, reduce the adhesion in obstruction and gap, make obstruction easily become flexible, break away from the gap.Simultaneously, tiltedly the current of nozzle ejection have a reaction force to the spinning ejector, this reaction force also can decomposite power and a tangential power radially, spinning ejector and rotary connecting device are rotationally connected, this tangential power can make spinning ejector automatic rotation after water spray, the current that so oblique nozzle ejection goes out also have pulsatile effect, make obstruction accelerate to come off because of impact fatigue.In addition, after high pressure water jet, in the method that adopts the negative pressure suction, impurity is discharged ground, can solve better the contamination and plugging problem that oil reservoir exists.
Preferred described angle is more than or equal to 30 ° and less than or equal to 45 °.
The surface of preferred spinning ejector is provided with at least one straight nozzle, and the axis of straight nozzle overlaps with the diameter of spinning ejector.
Preferably along the axis direction of spinning ejector, the surface of spinning ejector is provided with the oblique nozzle layer of one deck and one deck straight nozzle layer at least at least, tiltedly is provided with a plurality of oblique nozzles in nozzle layer, is provided with a plurality of straight nozzles in the straight nozzle layer.
Preferred a plurality of oblique nozzles are tiltedly evenly distributing in nozzle layer.
Preferred a plurality of straight nozzle evenly distributes in the straight nozzle layer.
Preferred spinning ejector is cylindric, and the lower end of spinning ejector is provided with seal plug.
Preferred rotary connecting device comprises outer tube and inner sleeve, is provided with bearing and sealing ring between outer tube and inner sleeve, and ball-and-seat is connected with outer tube, and the spinning ejector is connected with inner sleeve.
Preferred negative pressure suction return mediate between block apparatus and bleeder, between bleeder and ball-and-seat, between ball-and-seat and rotary connecting device, all be communicated with by oil pipe between rotary connecting device and spinning ejector.
The beneficial effects of the utility model are: the High-Pressure Water of the oblique nozzle ejection of this device can tangential force of output be used for peeling off obstruction after reaching the de-plugging position, simultaneously the spinning ejector can also spinning when water spray, make current to de-plugging position generation impact fatigue, make more loosening, disengaging of obstruction, this installs, and not only plugging removal effect is good, and high efficiency.In addition, after high pressure water jet, in the method that adopts the negative pressure suction, impurity is discharged ground, can solve better the contamination and plugging problem that oil reservoir exists.
Description of drawings
Below in conjunction with accompanying drawing, high-pressure spray described in the utility model and negative pressure suction plug-removing device are described in further detail.
Fig. 1 is the structural representation of high-pressure spray described in the utility model and negative pressure suction plug-removing device.
Fig. 2 is the structural representation of spinning ejector.
Fig. 3 is the sectional view of A-A direction in Fig. 2.
Fig. 4 is the sectional view of B-B direction in Fig. 2.
Wherein 1. negative pressure suctions are returned and are mediated block apparatus, 2. bleeder, 3. ball-and-seat, 4. rotary connecting device, 41. outer tubes, 42. inner sleeve, 43. bearings, 44. sealing rings, 5. spinning ejector, 51. oblique nozzles, 52. straight nozzle, 53. oblique nozzle layers, 54. straight nozzle layers, 55. seal plugs, 6. oil pipe.
The specific embodiment
Below in conjunction with accompanying drawing, high-pressure spray described in the utility model and negative pressure suction plug-removing device are described in detail.A kind of high-pressure spray and negative pressure suction plug-removing device, comprising from top to bottom that the negative pressure suction that connects is successively returned mediates block apparatus 1, bleeder 2, ball-and-seat 3, rotary connecting device 4, spinning ejector 5, spinning ejector 5 is connected with rotary connecting device 4 rotary seals, the surface of spinning ejector 5 is provided with at least one oblique nozzle 51, tiltedly the angle between the diameter of the axis of nozzle 51 and the axis that passes oblique nozzle 51 and the spinning ejector 5 of the spinning ejector 5 crossing focuses in surface is greater than 0 ° and less than or equal to 90 °, as Fig. 1, Fig. 2, shown in Figure 3.
In Fig. 3, tiltedly the angle between the diameter OA of the axis L of nozzle 51 and the axis L that passes oblique nozzle 51 and the spinning ejector 5 of the spinning ejector 5 crossing focus A in surface is θ, and namely the angle between straight line L and OA is θ.Tiltedly nozzle 53 is arranged on the surface of spinning ejector 5, the High-Pressure Water that oblique nozzle 53 ejects can be to position one impact force that needs de-plugging, this impact force can be decomposed into pressure and a tangential shearing force radially, this shearing force is used for peeling off obstruction, reduce the adhesion in obstruction and gap, make obstruction easily become flexible, break away from the gap.Simultaneously, tiltedly the current of nozzle 53 ejections have a reaction force to spinning ejector 5, this reaction force also can decomposite power and a tangential power radially, spinning ejector 5 is rotationally connected with rotary connecting device 4, this tangential power can make spinning ejector 5 automatic rotation after water spray, the current that so oblique nozzle 53 ejects also have pulsatile effect, make obstruction accelerate to come off because of impact fatigue.In addition, after high pressure water jet, in the method that adopts the negative pressure suction, impurity is discharged ground, can solve better the contamination and plugging problem that oil reservoir exists.
Larger to the tangential reaction force of spinning ejector 5 after the larger current ejection in θ angle, the rotary speed of spinning ejector 5 also can be faster, and current reduce the effect of peeling off of obstruction; The θ angle is less, and flow action is also less in the tangential force on obstruction surface, is unfavorable for equally peeling off obstruction, thus preferred 30 °≤θ≤45 °.
In prior art, vertical the injection has advantages of that water flow impact pressure is large, in order further to strengthen plugging removal effect, preferably will vertically spray, tilt and spray and rotary-jet combines, bring into play simultaneously advantage separately, so the surface of spinning ejector 5 also is provided with at least one straight nozzle 52, the axis of straight nozzle 52 overlaps with the diameter of spinning ejector 5, as Fig. 4.Along the axis direction of spinning ejector 5, the surface of spinning ejector 5 is provided with the oblique nozzle layer 53 of one deck and one deck straight nozzle layer 54 at least at least, tiltedly is provided with a plurality of oblique nozzles 51 in nozzle layer 53, is provided with a plurality of straight nozzles 52 in straight nozzle layer 54.As shown in Figure 2, Figure 3, Figure 4, the top of spinning ejector 5 is provided with straight nozzle layer 54,4 straight nozzles 52 are in the interior even distribution of straight nozzle layer 54, and the bottom of spinning ejector 5 is provided with 53,4 oblique nozzles 51 of oblique nozzle layer in the tiltedly interior even distribution of nozzle layer 53.
Different according to core intersection, in order to enlarge the scope of application of this high-pressure spray and negative pressure suction plug-removing device, negative pressure suction is returned to mediate between block apparatus 1 and bleeder 2 and is communicated with by oil pipe 6, be communicated with by oil pipe 6 between bleeder 2 and ball-and-seat 3, be communicated with by oil pipe 6 between ball-and-seat 3 and rotary connecting device 4, be communicated with by oil pipe 6 between rotary connecting device 4 and spinning ejector 5.Be to be threaded by the oil pipe 6 of certain-length between above-mentioned each parts.
The course of work of high-pressure spray described in the utility model and negative pressure suction plug-removing device is as follows: according to thickness and the degree of depth of oil reservoir, negative pressure suction is returned mediated block apparatus 1, bleeder 2, ball-and-seat 3, rotary connecting device 4 and spinning ejector 5 and from top to bottom fit together successively, the tubing string that the top of mediating block apparatus 1 connects certain-length is returned in the negative pressure suction, and the high-pressure spray and the negative pressure that assemble are aspirated plug-removing device near circle, oil reservoir top.Well head installs self-sealing blowout preventer, suppresses from the tubing string of well head, and water under high pressure enters spinning ejector 5 downwards.The oblique nozzle 51 of spinning ejector 5 and straight nozzle 52 eject High-Pressure Water and are used for de-plugging of well, and the ejector 5 of spinning simultaneously is take the axis of spinning ejector 5 as the axle rotation.In order to guarantee the sealing of rotary connecting device 4, inner sleeve 42 external surface cars are fluted, can be inserted in sealing ring, realize the sealing between internal and external casing.Spinning ejector 5 constantly rotates when the inject high pressure current, simultaneously by the slow handling tubing string on ground, high-pressure spray and negative pressure suction plug-removing device is moved up and down, and realizes the de-plugging of whole well section is processed.Tubing string from well head drops into steel ball afterwards, oil pipe and the parts of sealing ball-and-seat more than 3, just suppressing 8～12MPa, negative pressure suction is being returned mediated block apparatus 1 and set, whole handling high-pressure spray aspirates plug-removing device with negative pressure, negative pressure suction is returned and is mediated block apparatus 1 and be close to sleeve pipe and move with tubing string, aspirate, oil reservoir is produced strong suction function, make the high-pressure spray de-plugging process rear loosening oil layer blocking thing and discharge ground, avoid secondary to stop up, thereby reach better plugging removal effect.At last from the tubing string caber, metal bar striking oil draining apparatus 2, the cutting-off controlling pin, the central tube of bleeder 2 moves down, and exposes the eyelet pressure release, and construction fulfils assignment.
The above; be only specific embodiment of the utility model, can not limit the scope that utility model is implemented with it, so the displacement of its equivalent assemblies; or according to equivalent variations and modification that the utility model scope of patent protection is done, all should still belong to the category that this patent is contained.
Claims (9)
1. a high-pressure spray and negative pressure suction plug-removing device, it is characterized in that: comprising from top to bottom that the negative pressure suction that connects is successively returned mediates block apparatus (1), bleeder (2), ball-and-seat (3), rotary connecting device (4), spinning ejector (5), spinning ejector (5) is connected with rotary connecting device (4) rotary seal, the surface of spinning ejector (5) is provided with at least one oblique nozzle (51), tiltedly the angle between the diameter of the axis of nozzle (51) and the axis that passes oblique nozzle (51) and the spinning ejector (5) of the surperficial crossing focus of spinning ejector (5) is greater than 0 ° and less than or equal to 90 °.
2. high-pressure spray according to claim 1 and negative pressure are aspirated plug-removing device, and it is characterized in that: described angle is more than or equal to 30 ° and less than or equal to 45 °.
3. high-pressure spray according to claim 1 and negative pressure are aspirated plug-removing device, it is characterized in that: the surface of spinning ejector (5) is provided with at least one straight nozzle (52), and the axis of straight nozzle (52) overlaps with the diameter of spinning ejector (5).
4. high-pressure spray according to claim 3 and negative pressure are aspirated plug-removing device, it is characterized in that: along the axis direction of spinning ejector (5), the surface of spinning ejector (5) is provided with the oblique nozzle layer of one deck (53) and one deck straight nozzle layer (54) at least at least, tiltedly be provided with a plurality of oblique nozzles (51) in nozzle layer (53), be provided with a plurality of straight nozzles (52) in straight nozzle layer (54).
5. high-pressure spray according to claim 4 and negative pressure are aspirated plug-removing device, it is characterized in that: a plurality of oblique nozzles (51) are tiltedly evenly distributing in nozzle layer (53).
6. high-pressure spray according to claim 4 and negative pressure are aspirated plug-removing device, it is characterized in that: a plurality of straight nozzles (52) evenly distribute in straight nozzle layer (54).
7. high-pressure spray according to claim 1 and negative pressure are aspirated plug-removing device, it is characterized in that: spinning ejector (5) is for cylindric, and the lower end of spinning ejector (5) is provided with seal plug (55).
8. high-pressure spray according to claim 1 and negative pressure are aspirated plug-removing device, it is characterized in that: rotary connecting device (4) comprises outer tube (41) and inner sleeve (42), be provided with bearing (43) and sealing ring (44) between outer tube (41) and inner sleeve (42), ball-and-seat (3) is connected with outer tube (41), and spinning ejector (5) is connected with inner sleeve (42).
9. high-pressure spray according to claim 1 and negative pressure suction plug-removing device is characterized in that: negative pressure suction return mediate between block apparatus (1) and bleeder (2), between bleeder (2) and ball-and-seat (3), between ball-and-seat (3) and rotary connecting device (4), all be communicated with by oil pipe (6) between rotary connecting device (4) and spinning ejector (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220528986.6U CN202970575U (en) | 2012-10-16 | 2012-10-16 | High-pressure jet flow and negative pressure suction blockage removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220528986.6U CN202970575U (en) | 2012-10-16 | 2012-10-16 | High-pressure jet flow and negative pressure suction blockage removal device |
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| Publication Number | Publication Date |
|---|---|
| CN202970575U true CN202970575U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220528986.6U Expired - Fee Related CN202970575U (en) | 2012-10-16 | 2012-10-16 | High-pressure jet flow and negative pressure suction blockage removal device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593386A (en) * | 2016-12-15 | 2017-04-26 | 中国石油天然气股份有限公司 | Blockage removal device and blockage removal process pipe column |
| CN109424334A (en) * | 2017-08-28 | 2019-03-05 | 中国石油天然气股份有限公司 | Well-flushing spray gun |
| CN110529063A (en) * | 2019-09-09 | 2019-12-03 | 盘锦展鸿科工贸发展有限公司 | A kind of vibrator and vibration negative-pressure de-plugging tubing string |
| CN112513411A (en) * | 2018-07-18 | 2021-03-16 | 沙特阿拉伯石油公司 | Underground fracturing method |
| CN115434311A (en) * | 2022-10-14 | 2022-12-06 | 东南大学 | External mobile jet flow suction type caisson foundation reinforcing device and reinforcing method |
-
2012
- 2012-10-16 CN CN201220528986.6U patent/CN202970575U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593386A (en) * | 2016-12-15 | 2017-04-26 | 中国石油天然气股份有限公司 | Blockage removal device and blockage removal process pipe column |
| CN109424334A (en) * | 2017-08-28 | 2019-03-05 | 中国石油天然气股份有限公司 | Well-flushing spray gun |
| CN112513411A (en) * | 2018-07-18 | 2021-03-16 | 沙特阿拉伯石油公司 | Underground fracturing method |
| CN112513411B (en) * | 2018-07-18 | 2023-12-29 | 沙特阿拉伯石油公司 | Underground fracturing method |
| CN110529063A (en) * | 2019-09-09 | 2019-12-03 | 盘锦展鸿科工贸发展有限公司 | A kind of vibrator and vibration negative-pressure de-plugging tubing string |
| CN115434311A (en) * | 2022-10-14 | 2022-12-06 | 东南大学 | External mobile jet flow suction type caisson foundation reinforcing device and reinforcing method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20211016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |