CN201125722Y - Downhole pressure pulsed jet solution tools - Google Patents
Downhole pressure pulsed jet solution tools Download PDFInfo
- Publication number
- CN201125722Y CN201125722Y CNU200720158794XU CN200720158794U CN201125722Y CN 201125722 Y CN201125722 Y CN 201125722Y CN U200720158794X U CNU200720158794X U CN U200720158794XU CN 200720158794 U CN200720158794 U CN 200720158794U CN 201125722 Y CN201125722 Y CN 201125722Y
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- Prior art keywords
- control valve
- liquid
- pulse
- urceolus
- valve
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- 239000007788 liquid Substances 0.000 claims abstract description 56
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000004146 energy storage Methods 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 26
- 239000007924 injection Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000020477 pH reduction Effects 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model relates to an oil field acidification, downhole pressure pulse charge tool used for watering, which is composed of an automatic reversal blowing mechanism, an energy storage type pressure impulse mechanism and joints. A supercharger outer tube, a liquid storing cavity outer tube, an pulse liquid output control valve protecting sleeve screwed with the joints are composed of the case of the tools. The supercharger outer tube is equipped with an automatic reversal supercharging mechanism, and the liquid storing cavity outer tube is equipped with an air bag. When working, the automatic reversal supercharging mechanism injects the high-pressure fluid to the energy storage type pressure impulse mechanism, and compresses the high-pressure air bag to store the energy in the liquid storing cavity, when the pressure in the liquid storing cavity reaches the open pressure set by the pulse fluid output control valve, the control valve is opened to generate the pulse jet. The tools can automatically work depending on injecting liquid, independent of the driving device on the ground with low cost. The parameters such as the period, the pressure amplitude for generating the pulse fluid can be adjusted. The oil pool has wide practical range.
Description
Technical field
The utility model relates to the improvement of a kind of acidification of oil field, water filling usefulness down-hole pressure pulse fluid injection instrument.
Background technology
At present, what water flooding mainly adopted is to annotate water under high pressure by waterflood-transmission line to the stratum by the ground high-pressure pump, and with the natural energy that constantly consumes in the additional oil recovery process, but the pressure of the water under high pressure of annotating is more stable.The result of this water filling only is by pre-existent pore, stratum, crack to a large amount of water of stratum re-injection, occurs easily stopping up oil reservoir, and causing injection pressure to raise gradually because of poor water quality injected.Adopt commingled water injection, the high permeability formation individual layer often appears in the water filling later stage advances by leaps and bounds, the too early water logging of corresponding oil well; In, less permeable layer water filling difficulty, it is serious to short phenomenon, stratum energy can not get effectively replenishing, producing degree of reservoir is poor.Can alleviate this interlayer contradiction to a certain extent after being adjusted into seperated layer water injection, but the zonal injection technology technical sophistication, the input cost height.
The pressure pulse technology is a kind of raising recovery ratio new technology that grows up based on the porous media mechanics.By utilizing pulse fluid injection instrument to change into the recurrent pulses fluid injection stable injection liquid, producing low frequency, high-amplitude pressure and shock wave makes the stratum form fracture network and broken obstruction, improve the permeability of near wellbore zone, reach augmented injection, the swept volume that improves liquid and the purpose of oil recovery factor.The key of pressure pulse technology is the pressure pulse fluid injection instrument that development one cover is applied to water injection well.
Summary of the invention
The purpose of this utility model provides a kind of down-hole pressure pulse fluid injection instrument for oil field pulse fluid injection exactly.This instrument is converted into periodically high-voltage pulse liquid injection by injecting liquid, with technical problem such as solve shorting of existing in water flooding and the acidizing treatment, individual layer is advanced by leaps and bounds.
Technical solution of the present utility model is: down-hole pressure pulse fluid injection instrument comprises automatic reverse booster body, energy-storage type pressure pulse generating mechanism and joint.The top sub lower end is threaded with the upper end of booster urceolus; the automatic reverse booster body is fixed in the booster urceolus; the lower end of booster urceolus is threaded with the upper end of center contact; the liquid-storing cavity liquid inlet control valve is housed in the center contact; the lower end of center contact is threaded with the upper end of liquid-storing cavity urceolus; air bag is fixed in the liquid-storing cavity urceolus; the lower end of liquid-storing cavity urceolus is threaded with the upper end of bottom joint; the lower end of bottom joint is threaded with pulse liquid output control valve protective sleeve; pulse liquid output control valve is fixed in the pulse liquid output control valve protective sleeve, and connection of thread all has seal.
The automatic reverse booster body by booster urceolus, valve core of the spool valve, slide valve support, commutation trigger, piston rod, piston, plunger case, plunger, liquid inlet control valve, go out hydraulic control valve etc. and form; The booster outer tube inner wall is furnished with water stream channel; Valve core of the spool valve is a tubular structure, and outer wall has boss, and wall is provided with the water hole; Valve core of the spool valve is fixed in the slide valve support, and slide valve support is a tubular structure, and wall is provided with the water hole; The commutation trigger is contained in the valve core of the spool valve; Commutation trigger, piston, plunger are integral structure, and plunger end is provided with water stream channel along axis; Liquid inlet control valve is equipped with in inside, plunger lower end; Go out hydraulic control valve and be contained in booster urceolus inside bottom.
Energy-storage type pressure pulse generating mechanism is made up of liquid-storing cavity liquid inlet control valve, liquid-storing cavity urceolus, air bag, ventilating control valve, bottom joint, pulse liquid output control valve etc.; Air bag is oval column, and the top is a hemispherical, and the ventilating control valve is equipped with in the bottom; The bottom joint is provided with centre bore vertically, and the centre bore upper end is threaded with the ventilating control valve, and the centre bore lower end is threaded with pulse liquid output control valve.
The utlity model has following advantage:
1, the down-hole pressure impulse tool adopts the positive displacement liquid pulse in the shaft bottom, avoids the leakage of frequency and the loss of energy, and power output is big.
2, a whole set of impulse tool all places the down-hole, relies on fully to inject liquid realization work automatically, does not rely on the ground power-equipment, and cost is low.
3, the pulsing jet of Chan Shenging, parameters such as its pulse period, pulse can be exported control valve by pulsed flow and regulate, and are applicable to various pore type oil reservoirs.
Description of drawings
Fig. 1 is the structural profile schematic diagram of down-hole pressure pulse fluid injection instrument
Wherein: the 1-top sub; The 2-valve core of the spool valve; The 3-slide valve support; The 4-trigger that commutates; The 5-runner; The 6-piston rod; The 7-piston; The 8-plunger; The 9-liquid inlet control valve; The 10-plunger case; 11-goes out hydraulic control valve; The 12-runner; 13-booster urceolus; The 14-center contact; 15-liquid-storing cavity liquid inlet control valve; The 16-liquid-storing cavity; The 17-air bag; 18-liquid-storing cavity urceolus; 19-ventilating control valve; 20-bottom joint; 21-pulse liquid output control valve; 22-pulse liquid output cavity; 23-pulse liquid output control valve protective sleeve.
The specific embodiment
According to Fig. 1 the utility model is described further: top sub 1 lower end is threaded with the upper end of booster urceolus 13; the lower end of booster urceolus 13 is threaded with the upper end of center contact 14; the lower end of center contact 14 is threaded with the upper end of liquid-storing cavity urceolus 18; the lower end of liquid-storing cavity urceolus 18 is threaded with the upper end of bottom joint 20; the lower end of bottom joint 20 is threaded with pulse liquid output control valve protective sleeve 23; connection of thread all has seal, and they have constituted the shell of entire tool.Valve core of the spool valve 2 is installed in the slide valve support 3, slide valve support 3 is installed in the top of booster urceolus 13 inner chambers, commutation trigger 4, piston 7, plunger 8 are installed in the middle part of booster urceolus 13 inner chambers, liquid inlet control valve 9 is installed in the inside of plunger 8, goes out the bottom that hydraulic control valve 11 is installed in booster urceolus 13 inner chambers.Center contact 14 is provided with along axis and liquid-storing cavity is housed in the centre bore advances control valve 15 at night.Bottom joint 20 is provided with centre bore along axis, and the centre bore upper end is threaded with ventilating control valve 19, and the centre bore lower end is exported control valve 21 with pulse liquid and is threaded.Ventilating control valve 19 and air bag 17 riveted joints.
When going into the well, at first in air bag 17, inject gases at high pressure, again pressure pulse fluid injection instrument is connected the position of stratum that G.I.H need be handled by last end joint 1 with fluid injection pipeline flexibility or rigidity by ventilating control valve 19.
For the down-hole pressure pulse fluid injection instrument in the lower going-into-well, the ground highly pressurised liquid is through the fluid injection pipeline, by the P mouth of valve core of the spool valve 2, the B mouth of slide valve support 3, enter piston rod cavity of resorption N through runner 12, because the pressure of liquid makes the main motion part up, the liquid in the piston rod 6 epicoele M enters low-pressure area through runner 5 by the A mouth of slide valve support 3, the T mouth of valve core of the spool valve, when main motion was up, highly pressurised liquid entered plunger case 10 by feed liquor control 9; When the main motion part goes upward to top dead-centre, commutation trigger 4 promotes valve core of the spool valve 3 and makes the reversal valve commutation, be second kind of station, at this moment the P mouth of changement communicates with the A mouth, the T mouth communicates with the B mouth, highly pressurised liquid is by the P mouth of valve core of the spool valve 2, the A mouth of slide valve support 3, enter piston rod epicoele M through runner 5, because the pressure of liquid makes the main motion part descending, liquid in the piston rod 6 cavity of resorption N is through runner 12, B mouth by slide valve support 3, the T mouth of valve core of the spool valve enters low-pressure area, in the time of main motion part descending, after the liquid supercharging in the plunger case 10 by going out hydraulic control valve 11 and liquid-storing cavity liquid inlet control valve 15 enters liquid-storing cavity 16; When the main motion part comes downwards to bottom dead centre, commutation trigger 4 promotes valve core of the spool valve 3 and makes the reversal valve commutation, and the main motion part is up again, and so forth, forms the continuous reciprocating motion of main motion, realizes injecting the continuous supercharging of plunger cavity liquid.Liquid after the plunger cavity supercharging enters liquid-storing cavity 16 continuously, compressing gasbag 17 holds liquid, when the fluid pressure of liquid-storing cavity 16 reaches the opening pressure of pulse liquid output control valve 21 settings, control valve is opened, air bag 17 rapid expanding, enter the stratum by pulse liquid output cavity 22 in the high-pressure fluid short time of large volume, produce impulse wave, set up oscillator field, pulsing jet along with highly pressurised liquid, pressure reduces rapidly, and when the pressure of liquid-storing cavity 16 liquid dropped to the fixed closing presure of pulse liquid output control valve 21, pulse liquid output control valve 21 was closed.Open and so forth, close, realize the pulse fluid injection.
Claims (3)
1; a kind of down-hole pressure pulse fluid injection instrument; comprise the automatic reverse booster body; energy-storage type pressure pulse generating mechanism and joint; it is characterized in that: top sub (1) lower end is threaded with the upper end of booster urceolus (13); the automatic reverse booster body is fixed in the booster urceolus (13); the lower end of booster urceolus (13) is threaded with the upper end of center contact (14); liquid-storing cavity liquid inlet control valve (15) is housed in the center contact (14); the lower end of center contact (14) is threaded with the upper end of liquid-storing cavity urceolus (18); air bag (17) is fixed in the liquid-storing cavity urceolus (18); the lower end of liquid-storing cavity urceolus (18) is threaded with the upper end of bottom joint (20); the lower end of bottom joint (20) is threaded with pulse liquid output control valve protective sleeve (23); pulse liquid output control valve (21) is fixed in the pulse liquid output control valve protective sleeve (23), and connection of thread all has seal.
2, a kind of down-hole pressure pulse fluid injection instrument according to claim 1 is characterized in that: the automatic reverse booster body by booster urceolus (13), valve core of the spool valve (2), slide valve support (3), commutation trigger (4), piston rod (6), piston (7), plunger case (10), plunger (8), liquid inlet control valve (9), go out hydraulic control valve (11) etc. and form; Booster urceolus (13) inwall is furnished with water stream channel; Valve core of the spool valve (2) is a tubular structure, and outer wall has boss, and wall is provided with the water hole; Valve core of the spool valve (2) is fixed in the slide valve support (3), and slide valve support (3) is a tubular structure, and wall is provided with the water hole; Commutation trigger (4) is contained in the valve core of the spool valve (2); Commutation trigger (4), piston (7), plunger (8) are integral structure, and plunger end is provided with water stream channel along axis; Liquid inlet control valve (9) is equipped with in plunger (8) inside, lower end; Go out hydraulic control valve (11) and be contained in booster urceolus (13) inside bottom.
3, a kind of down-hole pressure pulse fluid injection instrument according to claim 1 is characterized in that: energy-storage type pressure pulse generating mechanism is made up of liquid-storing cavity liquid inlet control valve (15), liquid-storing cavity urceolus (18), air bag (17), ventilating control valve (19), bottom joint (20), pulse liquid output control valve (21) etc.; Air bag (17) is oval column, and the top is a hemispherical, and ventilating control valve (19) is equipped with in the bottom; Bottom joint (20) is provided with centre bore vertically, and the centre bore upper end is threaded with ventilating control valve (19), and the centre bore lower end is threaded with pulse liquid output control valve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720158794XU CN201125722Y (en) | 2007-12-24 | 2007-12-24 | Downhole pressure pulsed jet solution tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720158794XU CN201125722Y (en) | 2007-12-24 | 2007-12-24 | Downhole pressure pulsed jet solution tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201125722Y true CN201125722Y (en) | 2008-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720158794XU Expired - Fee Related CN201125722Y (en) | 2007-12-24 | 2007-12-24 | Downhole pressure pulsed jet solution tools |
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| Country | Link |
|---|---|
| CN (1) | CN201125722Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900406A (en) * | 2012-10-10 | 2013-01-30 | 胜利油田高原石油装备有限责任公司 | Pressure-pulse oil well production-increasing device and application method thereof |
| CN103321620A (en) * | 2013-06-13 | 2013-09-25 | 中国石油集团西部钻探工程有限公司 | Device for injecting gel while drilling |
| CN103352678A (en) * | 2013-06-27 | 2013-10-16 | 哈尔滨工业大学 | Polymer injection water injection layering selection continuous adjustable injection allocation device |
| CN103635656A (en) * | 2011-07-06 | 2014-03-12 | 国际壳牌研究有限公司 | System and method for injecting a treatment fluid into a wellbore and a treatment fluid injection valve |
| CN106555572A (en) * | 2016-11-30 | 2017-04-05 | 中国海洋石油总公司 | A kind of manpower intervention formula pulsed infusion equipment and its pulsed infusion method |
| CN108316900A (en) * | 2018-03-01 | 2018-07-24 | 崔自力 | Efficient hydraulic augmented injection equipment |
| CN112855099A (en) * | 2021-03-27 | 2021-05-28 | 管芮 | Pulse type pressurization injection device |
| CN113216914A (en) * | 2021-06-09 | 2021-08-06 | 门万龙 | Layered injection allocation device |
| CN113513293A (en) * | 2021-04-23 | 2021-10-19 | 西南石油大学 | Oil and Gas Stimulation Method Based on Discharge Plasma Pulse Shock Wave Accelerating Acidizing Fluid Surge Injection |
| CN115126466A (en) * | 2022-08-09 | 2022-09-30 | 山东科技大学 | An inertial accumulator boost pulse device |
| CN117145437A (en) * | 2023-08-31 | 2023-12-01 | 成都北方石油勘探开发技术有限公司 | Acidizing fluid injection tool of accuse water completion |
-
2007
- 2007-12-24 CN CNU200720158794XU patent/CN201125722Y/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635656A (en) * | 2011-07-06 | 2014-03-12 | 国际壳牌研究有限公司 | System and method for injecting a treatment fluid into a wellbore and a treatment fluid injection valve |
| CN103635656B (en) * | 2011-07-06 | 2016-12-14 | 国际壳牌研究有限公司 | For system and method and process liquid injection valve that fluid is injected in well will be processed |
| CN102900406A (en) * | 2012-10-10 | 2013-01-30 | 胜利油田高原石油装备有限责任公司 | Pressure-pulse oil well production-increasing device and application method thereof |
| CN102900406B (en) * | 2012-10-10 | 2015-11-11 | 胜利油田高原石油装备有限责任公司 | Pressure pulse oil well production increasing device and application process thereof |
| CN103321620A (en) * | 2013-06-13 | 2013-09-25 | 中国石油集团西部钻探工程有限公司 | Device for injecting gel while drilling |
| CN103321620B (en) * | 2013-06-13 | 2016-01-13 | 中国石油集团西部钻探工程有限公司 | With brill gel injection device |
| CN103352678A (en) * | 2013-06-27 | 2013-10-16 | 哈尔滨工业大学 | Polymer injection water injection layering selection continuous adjustable injection allocation device |
| CN103352678B (en) * | 2013-06-27 | 2015-10-07 | 哈尔滨工业大学 | Layering continuously adjustabe injection allocation apparatus is selected in the poly-water filling of note |
| CN106555572B (en) * | 2016-11-30 | 2018-12-14 | 中国海洋石油集团有限公司 | A kind of manpower intervention formula pulsed infusion method |
| CN106555572A (en) * | 2016-11-30 | 2017-04-05 | 中国海洋石油总公司 | A kind of manpower intervention formula pulsed infusion equipment and its pulsed infusion method |
| CN108316900A (en) * | 2018-03-01 | 2018-07-24 | 崔自力 | Efficient hydraulic augmented injection equipment |
| CN108316900B (en) * | 2018-03-01 | 2023-12-29 | 崔自力 | High-efficiency hydraulic injection increasing equipment |
| CN112855099A (en) * | 2021-03-27 | 2021-05-28 | 管芮 | Pulse type pressurization injection device |
| CN112855099B (en) * | 2021-03-27 | 2022-08-12 | 辽宁金兴石油集团有限公司 | A pulsed pressurized injection device |
| CN113513293A (en) * | 2021-04-23 | 2021-10-19 | 西南石油大学 | Oil and Gas Stimulation Method Based on Discharge Plasma Pulse Shock Wave Accelerating Acidizing Fluid Surge Injection |
| CN113216914A (en) * | 2021-06-09 | 2021-08-06 | 门万龙 | Layered injection allocation device |
| CN115126466A (en) * | 2022-08-09 | 2022-09-30 | 山东科技大学 | An inertial accumulator boost pulse device |
| CN115126466B (en) * | 2022-08-09 | 2024-02-02 | 山东科技大学 | Inertial pressure accumulation amplitude-rising type pulse device |
| CN117145437A (en) * | 2023-08-31 | 2023-12-01 | 成都北方石油勘探开发技术有限公司 | Acidizing fluid injection tool of accuse water completion |
| CN117145437B (en) * | 2023-08-31 | 2024-05-07 | 成都北方石油勘探开发技术有限公司 | Acidizing fluid injection tool of accuse water completion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20101224 |