CN101073798B - Pulse vibration generator and generation method - Google Patents
Pulse vibration generator and generation method Download PDFInfo
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- CN101073798B CN101073798B CN2006100814062A CN200610081406A CN101073798B CN 101073798 B CN101073798 B CN 101073798B CN 2006100814062 A CN2006100814062 A CN 2006100814062A CN 200610081406 A CN200610081406 A CN 200610081406A CN 101073798 B CN101073798 B CN 101073798B
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- pressurized canister
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Abstract
The invention is concerned with the pulse shocking creating equipment the method, consists of: the air compressor (-), the holder of gas (-), the controlling display collection system (-), the after-press adjust equipment (-), the charge kettle (-), fills a quantity of liquid in the charge kettle (-), pushes the liquid in the charge kettle (-) to to-and-fro movement by the pressed gas in order to achieve pulse shock at the exit of the charge kettle (-). It is: uses the equipment to create the shocking wave in order to force press pulse to the grout column in the well opening and the sleeve ring, which can improve the grout capability, improve the cementation quality of the cement and sleeve and the well.
Description
Technical field
The present invention relates to a kind of impulse oscillation generation device and produce the method for impulse oscillation, belong to the generation equipment of finishing the mechanical oscillation that the common mechanical operation uses, particularly with the equipment of the system works that the reciprocating motion object is arranged by this device.
Background technology
In the past, after the oil gas well cementing operation operation, always wait for the cement mortar time passively with fixed attention, cement mortar distribution situation in the well and cement mortar strength development are not applied any influence, the later stage operation of well cementation is in a kind of passive state.
US5377753A discloses a kind of method and apparatus that improves the well cementation bonding quality, wherein by the vibration (seeing its accompanying drawing 5) of exerting pressure of the cement mortar of pneumatic diaphragm pump in well and casing annulus.The problem of its existence is: because diaphragm material and flexible restriction thereof, the amplitude of this device can be very not big, and its frequency range also is restricted, and the energy transmission is limited, influences the transmission distance of vibration wave.In addition, because abominable, the complexity of vibration environment are very high to the requirement of diaphragm material, cause the material selection difficulty.Owing to there are these problems, will inevitably influence the curing efficiency of cement mortar, influence well cementation bonding quality vibrates also not steady.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of amplitude and frequency is easily controlled, adjustable, adjustable range is big, and the impulse oscillation generation device and the method for pressure pulse can be provided to stable and continuous; And further provide a kind of aforementioned impulse oscillation generation device is applied to well head impulse oscillation cementing operation device and method in the cementing operation.
Impulse oscillation generation device of the present invention comprises: air compressor 1, air accumulator 2, control show acquisition system 3, overbottom pressure adjusting device 4 and pressurized canister 5, charged certain amount of fluid in the described pressurized canister 5, when described device is started working, air compressor 1 starts, to air accumulator 2 inflations, show that by control acquisition system 3 by the venting of overbottom pressure adjusting device 4 control air accumulators 2 to pressurized canister 5 inflations and control pressurized canister 5, promotes the outlet that liquid moves back and forth in pressurized canister 5 in the pressurized canister 5 by gas-pressurized and realizes impulse oscillation again.
The method of generation impulse oscillation of the present invention is the method that is produced impulse oscillation by aforesaid impulse oscillation generation device.
Well head impulse oscillation cementing operation device of the present invention comprises: air compressor 1, air accumulator 2, control shows acquisition system 3, overbottom pressure adjusting device 4 and pressurized canister 5, the outlet of described pressurized canister 5 connects well head, charged certain amount of fluid in it, when described device is started working, air compressor 1 starts, to air accumulator 2 inflations, show that by control acquisition system 3 by the venting of overbottom pressure adjusting device 4 control air accumulators 2 to pressurized canister 5 inflations and control pressurized canister 5, promotes the outlet that liquid moves back and forth in pressurized canister 5 in the pressurized canister 5 by gas-pressurized and realizes impulse oscillation again.
Well head impulse oscillation cementing operation method of the present invention comprises: after oil gas well cementing operation finishes, aforesaid well head impulse oscillation cementing operation device is connected to well head, to the pulse of exerting pressure of the well cementation liquid in well and the casing annulus.
In said apparatus and method:
Described overbottom pressure adjusting device 4 is positioned on the pipeline of the outlet that connects air accumulator 2 and pressurized canister 5 imports, and its switch control pressurized canister 5 by magnetic valve is communicated with air accumulator 2 to inflate or mouthful be communicated with the overbottom pressure adjusting exits.
Described pressurized canister 5 has liquid level gauge 6, is used to show the level change in it.
Described air accumulator 2 comprises tank body 11, top cover 9, bottom 10, vent valve 8, air inlet 13 and gas outlet 12.
Described control shows acquisition system 3 by the construction parameters of setting, and the branch time is controlled the switch of described magnetic valve, pressurized canister 5 is inflated and is exitted, and then realize impulse oscillation, and described inflationtime and deflation time all were controlled at 0.1～50.0 second.
It is one-period that inflationtime adds the venting time, and the control vibration frequency range is 0.01～5.0Hz.
The inventor proves by a large amount of test datas: after oil gas well cementing operation finishes, adopt impulse oscillation generation device of the present invention to produce vibration wave to the pulse of exerting pressure of the cement mortar post in well and the casing annulus, can significantly improve the performance of cement mortar, effectively improve the bonding quality of cement and sleeve pipe and well, improve cementing quality.
Characteristics of the present invention are as follows:
(1) but use pressure in the air accumulator intensifier pulse process steadily and continuity
The volume of air accumulator can design as required, as 1m
3For convenient on-the-spot impulse oscillation cementing operation, improve safety of construction, the preferred air accumulator air feed that uses big volume and can bear big pressure has increased gas-storing capacity like this, has increased the stationarity and the continuity of the pressure in the pulse process.In addition, can select single-screw air compressor for use is the air accumulator air feed, is that its outside air feed speed can reach 10m under the condition of 1.2MPa at pressure
3/ min, and air feed process stable and continuous.
(2) control system is set the control construction parameter
Control demonstration acquisition system is by the construction parameter of setting, and opening and closing of branch time control solenoid valve controlled pressure-air and filled and release to pressurized canister, and then realize impulse oscillation.Inflationtime and deflation time all can be controlled in 50.0～0.1 seconds, and inflationtime and deflation time are to be determined by the reaction time of the reaction time of magnetic valve and frequency converter; It is one-period that inflationtime adds the venting time, and so controlled damping dynamic frequency scope is 1/ (50.0+50.0) for the 0.01[formula]～the 5.0[formula is 1/ (0.1+0.1)] Hz.
(3) gather stocking system and provide direct various demonstration to the operator
1. LCDs can show the instantaneous value curve of pulse and the instantaneous decrement curve of performance graph and borehole fluid, so that adjust construction parameter; 2. four parameter values of decrement of pulse frequency, pulse, pulse amplitude and the borehole fluid of single-chip microcomputer storage construction overall process are connected with computer by standard serial port.Can read all data and analyze.
(4) by pressurized canister to the bore hole annulus pulse of exerting pressure
Along with the filling and the release of pulse, cause the compression and the recovery of annulus fluid, form moving up and down of high water tank.Acquisition system shows and stores decrement, can dynamically embody the situation of solidifying of cement mortar in the bore hole annulus.The volume of pressurized canister can be as required, and as 80 liters, it forms airtight chamber by pipeline and bore hole annulus, this chamber gas-liquid coexistence.
Impulse oscillation generation device of the present invention not only can be applied to cementing operation, also can be used for the operation that other any needs use impulse oscillation.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is done to describe in further detail.
Fig. 1 impulse oscillation generation device flow chart
Fig. 2 air accumulator schematic diagram
Fig. 3 pressurized canister and liquid level gauge schematic diagram thereof
Fig. 4 SN360 well protective casing well cementation sound width of cloth curve
The specific embodiment
As shown in Figure 1, impulse oscillation generation device of the present invention comprises that mainly air compressor 1, air accumulator 2, control show acquisition system 3 (being Programmable Logic Controller), overbottom pressure adjusting device 4,5 five parts of pressurized canister.Charged certain amount of fluid in the pressurized canister 5, when the beginning vibration service, air compressor 1 starts, to air accumulator 2 inflations, when treating that air pressure in the air accumulator 2 reaches setting pressure (as 0.9Mpa) near air compressor 1, show that by control acquisition system 3 by the venting of overbottom pressure adjusting device 4 control air accumulators 2 to pressurized canister 5 inflations and control pressurized canister 5, promotes the outlet that liquid moves back and forth in pressurized canister 5 in the pressurized canister 5 by gas-pressurized and realizes impulse oscillation again.The frequency of pressure pulse shows acquisition system 3 controls by control, and is adjustable.The adjusting of the wave amplitude of pressure pulse realizes by overbottom pressure adjusting device 4.
On the connecting line of air accumulator 2 and pressurized canister 5 take-off line is arranged, the outlet of this take-off line is that overbottom pressure is regulated mouth.Overbottom pressure adjusting device 4 comprises two valves: one of them intake valve places on the connecting line top set pipeline position before of air accumulator 2 and pressurized canister 5, is used for to pressurized canister 5 inflations; Another overbottom pressure control valve places on the described take-off line, is used for the venting of pressurized canister 5.Switch by these two valves switches, and realizes that control convert pressurized jar is communicated with air accumulator or pressurized canister is communicated with overbottom pressure adjusting mouth.
Be convenient on-the-spot impulse oscillation cementing operation, improve the stable and continuous of air feed speed, the inventor has designed air accumulator as shown in Figure 2.Air accumulator 2 comprises tank body 11, top cover 9, bottom 10 and vent valve 8, air inlet 13, gas outlet 12.The principle of air accumulator is that air is entered by air inlet 13, and when treating that the air pressure in the jar reaches the setting pressure of air compressor machine 1 (for example 0.9Mpa), air compressor machine 1 stops to inflate to air accumulator; When the air pressure in the jar during less than the setting pressure of air compressor machine 1, compressed air continues to be entered by air inlet 13, the process above repeating.
For the frequency of controlled pressure pulse, increased control and shown acquisition system.Controlled frequency scope: 0.01[=1/ (50.0+50.0)]～5.0[=1/ (0.1+0.1)] Hz, the amplitude range when preferably vibrating: 0.0～0.9Mpa.Control shows that the principle of acquisition system is under the control of program, and inlet open a closes second, and the overbottom pressure control valve opens b and cuts out second, and above process so moves in circles.
As shown in Figure 3, for the chamber of a buffering is provided to gases at high pressure, the inventor has designed impulse chamber especially, and just pressurized canister 5, and it plays the effect of buffer stream liquid in well; Pressurized canister 5 is furnished with the pipeline that connects well head, charges for example 2/3 water in it, the situation of change of liquid level when liquid level gauge 6 can observe directly construction.Its course of work is: INO, and gases at high pressure are entered by air inlet 14, the flow direction well head in the compression pressurized canister 5; A is after second, and intake valve cuts out; At this moment, the overbottom pressure control valve is opened b second, and the air pressure in the pressurized canister 5 discharges.The liquid level variation that liquid level gauge 6 shows in the pressurized canister 5.Repeat said process.
Embodiment
Well head impulse oscillation cementing operation device is put in the middle of the cementing operation.The SN360 well is that the part, northeast is deployed in a bite prospect pit of stepping on the Lou Ku structure, and this well cementing operation finishes promptly to replace the slurry bruising, uses well head impulse oscillation cementing operation device that annular space cement mortar post is carried out impulse oscillation behind the seat big envelope pipe, and the time is 1 hour.Work progress adopts the amplitude of 0.7MPa, and five time periods construct.Entire field construction operation process is smooth, and pulsing unit works well.Construction parameter is adjusted simple, and data acquisition is accurate.Concrete vibration parameters sees Table 1.
The decrement of the vibration transmission fluid of five periods construction periods of table 1:
The decrement data of the vibration transmission fluid by five sections in the table 1 construction periods as can be seen, along with solidifying of cement mortar, the decrement of the transmission fluid of different identical vibration parameters of period is more and more littler, illustrates that the amount of the free liquid of annular space is also fewer and feweri.
The survey sound width of cloth after 24 hours of cementing the well, full well water mud interval isolation acoustic amplitude average out to 6.5%, the cementing quality Comprehensive Assessment is excellent, well cementation sound width of cloth curve is seen Fig. 4.
Claims (16)
1. impulse oscillation generation device, comprise: air compressor (1), air accumulator (2), control shows acquisition system (3), overbottom pressure adjusting device (4) and pressurized canister (5), described pressurized canister has charged certain amount of fluid in (5), when described device is started working, air compressor (1) starts, inflate to air accumulator (2), show that by control acquisition system (3) by the venting of overbottom pressure adjusting device (4) control air accumulator (2) to pressurized canister (5) inflation and control pressurized canister (5), promotes the outlet that liquid moves back and forth in pressurized canister (5) in the pressurized canister (5) by gas-pressurized and realizes impulse oscillation again.
2. impulse oscillation generation device as claimed in claim 1, it is characterized in that: described overbottom pressure adjusting device (4) is positioned on the pipeline of the outlet that connects air accumulator (2) and pressurized canister (5) import, and its switch control pressurized canister (5) by magnetic valve is communicated with air accumulator (2) to inflate or mouthful be communicated with the overbottom pressure adjusting exits.
3. impulse oscillation generation device as claimed in claim 2 is characterized in that: described pressurized canister (5) has liquid level gauge (6), is used to show the level change in it.
4. as claim 2 or 3 described impulse oscillation generation devices, it is characterized in that: described air accumulator (2) comprises tank body (11), top cover (9), bottom (10), vent valve (8), air inlet (13) and gas outlet (12).
5. method that produces impulse oscillation by impulse oscillation generation device as claimed in claim 1.
6. one kind by the method that produces impulse oscillation as each described impulse oscillation generation device among the claim 2-4.
7. method as claimed in claim 6, it is characterized in that: described control shows that acquisition system (3) is by the construction parameter of setting, divide the time to control the switch of described magnetic valve, pressurized canister (5) is inflated and exitted, and then the realization impulse oscillation, described inflationtime and deflation time all were controlled at 0.1～50.0 second.
8. method as claimed in claim 7 is characterized in that: it is one-period that inflationtime adds the venting time, and the control vibration frequency range is 0.01～5.0Hz.
9. well head impulse oscillation cementing operation device, comprise: air compressor (1), air accumulator (2), control shows acquisition system (3), overbottom pressure adjusting device (4) and pressurized canister (5), the outlet of described pressurized canister (5) connects well head, charged certain amount of fluid in it, when described device is started working, air compressor (1) starts, inflate to air accumulator (2), show that by control acquisition system (3) by the venting of overbottom pressure adjusting device (4) control air accumulator (2) to pressurized canister (5) inflation and control pressurized canister (5), promotes the outlet that liquid moves back and forth in pressurized canister (5) in the pressurized canister (5) by gas-pressurized and realizes impulse oscillation again.
10. well head impulse oscillation cementing operation device as claimed in claim 9, it is characterized in that: described overbottom pressure adjusting device (4) is positioned on the pipeline of the outlet that connects air accumulator (2) and pressurized canister (5) import, and its switch control pressurized canister (5) by magnetic valve is communicated with air accumulator (2) to inflate or mouthful be communicated with the overbottom pressure adjusting exits.
11. well head impulse oscillation cementing operation device as claimed in claim 10, it is characterized in that: described pressurized canister (5) has liquid level gauge (6), is used to show the level change in it.
12. as claim 10 or 11 described well head impulse oscillation cementing operation devices, it is characterized in that: described air accumulator (2) comprises tank body (11), top cover (9), bottom (10), vent valve (8), air inlet (13) and gas outlet (12).
13. a well head impulse oscillation cementing operation method comprises: after oil gas well cementing operation finishes, the described well head impulse oscillation of claim 9 cementing operation device is connected to well head, to the pulse of exerting pressure of the well cementation liquid in well and the casing annulus.
14. well head impulse oscillation cementing operation method, comprise: after oil gas well cementing operation finishes, each described well head impulse oscillation cementing operation device among the claim 10-12 is connected to well head, to the pulse of exerting pressure of the well cementation liquid in well and the casing annulus.
15. method as claimed in claim 14, it is characterized in that: described control shows that acquisition system (3) is by the construction parameter of setting, divide the time to control the switch of described magnetic valve, pressurized canister (5) is inflated and exitted, and then the realization impulse oscillation, described inflationtime and deflation time all were controlled at 0.1～50.0 second.
16. method as claimed in claim 15 is characterized in that: it is one-period that inflationtime adds the venting time, and the control vibration frequency range is 0.01～5.0Hz.
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| CN2006100814062A CN101073798B (en) | 2006-05-18 | 2006-05-18 | Pulse vibration generator and generation method |
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| CN2006100814062A CN101073798B (en) | 2006-05-18 | 2006-05-18 | Pulse vibration generator and generation method |
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| CN101073798A CN101073798A (en) | 2007-11-21 |
| CN101073798B true CN101073798B (en) | 2010-04-14 |
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| CN104624466B (en) * | 2014-11-04 | 2017-06-16 | 苏州珂锐铁电气科技有限公司 | It is contactless to draw the device that shakes |
| CN113595007B (en) * | 2021-07-15 | 2023-12-05 | 国网浙江省电力有限公司金华供电公司 | Deicing device and deicing method for power transmission line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4407365A (en) * | 1981-08-28 | 1983-10-04 | Exxon Production Research Co. | Method for preventing annular fluid flow |
| US5377753A (en) * | 1993-06-24 | 1995-01-03 | Texaco Inc. | Method and apparatus to improve the displacement of drilling fluid by cement slurries during primary and remedial cementing operations, to improve cement bond logs and to reduce or eliminate gas migration problems |
| CN1144721A (en) * | 1996-01-29 | 1997-03-12 | 徐永升 | Water-vapour pulse pipe-cleaning method |
| CN2693945Y (en) * | 2003-12-24 | 2005-04-20 | 大港油田集团有限责任公司 | Hydraulic pulse vibrator |
-
2006
- 2006-05-18 CN CN2006100814062A patent/CN101073798B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4407365A (en) * | 1981-08-28 | 1983-10-04 | Exxon Production Research Co. | Method for preventing annular fluid flow |
| US5377753A (en) * | 1993-06-24 | 1995-01-03 | Texaco Inc. | Method and apparatus to improve the displacement of drilling fluid by cement slurries during primary and remedial cementing operations, to improve cement bond logs and to reduce or eliminate gas migration problems |
| CN1144721A (en) * | 1996-01-29 | 1997-03-12 | 徐永升 | Water-vapour pulse pipe-cleaning method |
| CN2693945Y (en) * | 2003-12-24 | 2005-04-20 | 大港油田集团有限责任公司 | Hydraulic pulse vibrator |
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