CN100526882C - Pulse vibration tester for cement slurry - Google Patents

Pulse vibration tester for cement slurry Download PDF

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CN100526882C
CN100526882C CNB2005100777266A CN200510077726A CN100526882C CN 100526882 C CN100526882 C CN 100526882C CN B2005100777266 A CNB2005100777266 A CN B2005100777266A CN 200510077726 A CN200510077726 A CN 200510077726A CN 100526882 C CN100526882 C CN 100526882C
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grout
toroidal cavity
pressure
pulse
cement slurry
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CN1885034A (en
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丁士东
周仕明
周体秋
张克坚
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China Petroleum and Chemical Corp
Sinopec Exploration and Production Research Institute
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China Petroleum and Chemical Corp
Sinopec Exploration and Production Research Institute
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Abstract

The invention relates to a cement slurry hydraulic impulse vibration test device, to test the solidify parameter via impulse vibration, wherein said test device comprises a test well cylinder 16, a circulate system, an impulse vibration system, a heating system, and a pressurizing system; the test well cylinder comprise a sheathed analogue well eye 14 and analogue sleeve 15; the outer diameter of analogue well eye 14 is larger than the outer diameter of analogue sleeve 15, while its inner wall and the outer wall of analogue sleeve 15 form the annular chamber; the test device uses the cement of annular chamber to circulated feed; and it uses impulse vibration system, heating system, and pressurizing system to function special vibration frequency on the cement at certain temperature, time and pressure, to test the properties of vibrated cement slurry and compare the properties of non-vibrated cement slurry or in other vibration parameter, to find out the parameter to obtain best property of solidified cement slurry.

Description

Pulse vibration tester for cement slurry
Technical field
The present invention relates to a kind of test apparatus that detects the grout parameter, the grout that relates under the detection generation impulse oscillation pressure of saying so further solidifies the test apparatus of parameter.
Background technology
" well cementation mine water force vibration generator " number of patent application ZL98238548.X.This is a kind of utility model patent, " be used to improve the down-hole waterpower impulse oscillation generator of petroleum drilling cementing quality ", under the effect of fluid impact power, the rotation of the rotor of Vib., focusing on waterpower pulse pressure is changed into vibration mechanical energy, is the application during impulse oscillation is cemented the well at the scene; It is the tool of production, non-measurement for Evaluation instrument.
" hydraulic pulse generator " number of patent application CN86108271A.This is a kind of hydraulic pulse generator, utilizes pressurized air as power, promotes the motion of hollow piston, and the water in the compression tube forms high-pressure water jet by nozzle.Being used for mining industry and hydraulic engineering, utilizing high-voltage pulse jet crushing rock, also can be used for the boiler plant that cogeneration plant is cleaned in power engineering, is the application of impulse oscillation in the middle of actual production.Because the enclosed water drain cavity links to each other with the inner chamber of vibration machine hollow piston and the inner chamber of pipeline, pressure wherein is along with the arrival of low-pressure wave can not increase continuously, and its pressure value is lower than input pressure.
" half-duplex channel rotation type hydraulic pulse producer " number of patent application CN87214188U.This is a kind of rotation type hydraulic pulse producer, utilizes oil groove or the hydraulic fluid port opened on rotor, the stator, makes pressure oil constantly change passage in pulse producer, thereby obtains the pressure oil pulse of half-duplex channel.This equipment does not possess the ability of overall work, only is parts that the pressure of hydraulic oil changed into mechanical energy.
Summary of the invention
The objective of the invention is: a kind of hydraulic impulse vibration tester is provided, can produces impulse oscillation pressure, the working condition when the cement slurry cementing construction is used in simulation, thereby the test grout parameter relevant with cementing operation.
Pulse vibration tester for cement slurry provided by the present invention comprises experimental wwll cylinder, the circulation system, impulse oscillation system, heating system, compression system etc.
Wherein said experimental wwll cylinder comprises simulation well and analog casing.Simulation well and analog casing are two tubular structures that are nested together and interfix, and the external diameter of simulation well is greater than the external diameter of analog casing.Form toroidal cavity between the inwall of simulation well and the outer wall of analog casing.The upper end of toroidal cavity is provided with the grout outlet, and the lower end is provided with the grout import, and grout is filled with annular space from the bottom up during test.This experimental wwll cylinder structure of the present invention is to simulate the hole structure of actual oil well is scaled, thus the better actual environment of simulated field well cementation.
The fixed form of the above simulation well and analog casing can adopt the fixed form between existing sleeve pipe in the prior art.Preferred in the present invention sleeve pipe locating ring and the running casing locating ring on two ends are provided with up and down that adopts toroidal cavity between between simulation well and analog casing is fixed on the simulation well intraocular with analog casing.Described sleeve pipe locating ring is an engraved structure on perpendicular to the xsect of ring axis, for example spreads all over through hole or locating ring by structures such as the brace rod of inner and outer ring and two interannulars constitute, can make the grout in the test flow unimpeded in toroidal cavity.
In the test instrument provided by the invention, the described circulation system comprises ebullator, grout bucket etc.Ebullator (1) is extracted grout out from grout bucket (2), and grout is injected from the grout import of the toroidal cavity lower end of experimental wwll cylinder (16) by associated line, grout flows back to the grout bucket (2) from the grout outlet of toroidal cavity upper end by pipeline after filling described toroidal cavity, circulates.Wait to simulate the well cementing operation condition, make grout in the circulation system behind the circulation certain hour, the valve closing with grout is imported and exported can begin the test of impulse oscillation.The pipeline of grout circulation is imported and exported with the grout of described toroidal cavity and is detachable the connection.After off-test, the grout import and the pipeline of described toroidal cavity are taken apart, open valve and just proof grout can be released.After treating that grout cleans out, import is connected with grout with pipeline again, and it is additional by ebullator the grout in the toroidal cavity to be circulated then, is convenient to test next time.
In the test instrument provided by the invention, described impulse oscillation system comprises pulse producer, the pressure line of pulse producer by communicating with the toroidal cavity upper end of simulating between well, analog casing applies the pulse vibration signal for the grout in the described toroidal cavity.
Above-described pulse producer can adopt the existing various pulse producers that can be used for occasion of the present invention in the prior art.Preferred in the present invention impulse oscillation system comprises motor, cam (being eccentric wheel), hydraulic cylinder etc.Described cam is vertically fixed on its axle center on the main shaft of motor, and the end face of the pump piston of hydraulic cylinder contacts with the cam outer rim.Hydraulic cylinder links to each other with the toroidal cavity upper end of described experimental wwll cylinder by hydraulic line.When the motor drives cam rotation, cam is with regard to the driving pump reciprocating motion of the pistons, and the hydraulic oil in the hydraulic cylinder is produced pulse, utilizes hydraulic oil that the hydraulic impulse vibration signal that produces is acted on the grout in the described toroidal cavity by hydraulic line.The amplitude of impulse oscillation can be regulated by the cam of replacing different eccentric throws.Owing to utilize hydraulic pressure to produce impulse oscillation, contact with hydraulic oil in order to prevent the grout in the described toroidal cavity, so be provided with the barrier film back-up ring in the inside of described toroidal cavity upper end and hydraulic line junction.When the impulse oscillation system implemented impulse oscillation to grout, the barrier film back-up ring carried out dynamic seal (packing) to described toroidal cavity, and hydraulic oil in the hydraulic cylinder and the grout in the toroidal cavity are kept apart.
In the test instrument provided by the invention, described heating system comprises the heating arrangement that is arranged on the experimental wwll cylinder, and the grout in the toroidal cavity is heated.Described heating arrangement can adopt existing various applicable heating arrangements of the present invention in the prior art.Preferably on the analog casing outer wall, heating jacket is set among the present invention, to guarantee heating and heat preservation effect to the grout in the toroidal cavity.
In the test instrument provided by the invention, described compression system comprises pressure apparatus, to the pressurization of the toroidal cavity between simulation well and analog casing.Described pressure apparatus can adopt existing pressure apparatus in the prior art.The preferred elevated pressure nitrogen gas tank of pressure apparatus in the present invention.High pressure line is connected the upper end of simulating the toroidal cavity between well and analog casing in elevated pressure nitrogen gas tank and the described experimental wwll cylinder, can be by high-pressure nitrogen bottle to the grout pressurization in the toroidal cavity of simulation well and analog casing formation.Pressure is by the pressure-regulating valve control that is arranged on the elevated pressure nitrogen gas tank.
In the test instrument provided by the invention, described various experiment parameters comprise that the control of temperature, pressure, pulse signal etc. can finish by some automatic control means.Therefore test instrument of the present invention can also comprise the control acquisition system.
Described control acquisition system comprises that control panel reaches with lower device:
1. frequency converter: be arranged on the control panel, and be connected with the pulse producer of impulse oscillation system; The pulse signal occurrence frequency of described impulse oscillation system is by Frequency Converter Control, and frequency data directly are presented on the frequency converter on the control panel;
2. automatic thermostat: be arranged on the control panel, and be connected with the heating arrangement of described heating system; Control the temperature that grout in the experimental wwll cylinder is regulated in the heating of described heating arrangement by automatic thermostat, temperature data is presented on the automatic thermostat on the control panel;
3. tensimeter: be arranged on the control panel, and be connected with the toroidal cavity of described experimental wwll cylinder; The surge pressure value of measuring the original pressure value in the described toroidal cavity and bringing by tensimeter by impulse oscillation pressure, and be presented on the tensimeter on the control panel.The undulating quantity of pressure can be indirect the amplitude that is considered as impulse oscillation.
In the preferred version of pulse vibration tester for cement slurry of the present invention, the motor in the pulse producer of described frequency converter and described impulse oscillation system is connected, the frequency of coming control wave by the rotational frequency of control motor; The heating jacket that is arranged on the analog casing outer wall in described automatic thermostat and the described heating arrangement is connected.
The setting range of the frequency of the above frequency converter is greater than 0.0Hz, smaller or equal to 50.0Hz; When the ambient temperature of test during less than the testing requirements temperature, temperature controller can be warmed up to pit shaft temperature required, and the temperature setting range is at 0 ℃ to 200.0 ℃.(when being lower than 0 ℃ when ambient temperature, temperature controller pit shaft can be warmed up to 0 ℃ and more than, the highlyest be no more than 200 ℃).
Instrument and equipments such as the adjustable speed motor in the test instrument of the present invention, cam, hydraulic cylinder, frequency converter, heating jacket, automatic thermostat, tensimeter all can adopt existing various pertinent instruments equipment etc. in the prior art.Generally can select frequency resolution for use is that frequency converter, the temperature control precision of 0.1Hz reaches 0.1 ℃ temperature controller.
Utilize test instrument of the present invention to carry out the test of grout impulse oscillation, the frequency of its impulse oscillation is preferably 0.5~6Hz, and amplitude is that 0.2~0.4MPa (amplitude is reliably replaced the cam of different eccentric throws and regulated), experimental temperature are preferably 20 ℃ to 95 ℃.At first be warming up to the heating jacket in the experimental wwll cylinder temperature required in the test, then grout is carried out simulation loop, the valve closing of behind the certain hour to be recycled grout being imported and exported, stop circulation and (or earlier grout is carried out simulation loop, simultaneously described heating jacket is heated up, treat that slurry temperature reaches temperature required and/or stops circulation during the time).Afterwards the grout in the toroidal cavity of simulation well and analog casing formation is exerted pressure and the pulse signal, detect every performance of grout behind the certain hour.According to concrete experiment, cement slurry property contrast situation such as table 1 before and after the experiment:
Table 1
Figure C200510077726D00091
Annotate: the experimental data of sequence number 1 records under the non-vibration condition; Good magnificent G class g cement is by commercially available acquisition.
The above experimental standard of doing is as follows: compressive strength test 7.2.5,7.5.1-7.5.3,7.6.2.2 in " the oil well cement test method " of " State Standard of the People's Republic of China GB/T 19139-2003 "; Oil well simulation thickening time test conformance with standard 9.1-9.4.5; The mensuration of rheological property meets: 12.4.1-12.4.9.
Experimental analysis: get the mean value of resulting performance parameter value under its each vibration condition, with the performance parameter contrast under the vibration condition not, the result is that the compressive strength of cement stone improves
9.4%; Shortened 2.5% the setting time of grout, and first final set is tied and shortened 14.3% transit time.This shows with this test instrument experiment, can simulate actual well cementation condition, can reflect more accurately the situation of solidifying of grout, in the actual well cementation process rationally the adjusting process parameter very big directive significance is arranged.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation of grout hydraulic pressure pulse vibration tester;
Fig. 2 is the structural representation of experimental wwll cylinder;
Fig. 3 is the pulse producer structural representation.
Embodiment
Fig. 1 is the structural drawing of grout hydraulic pressure pulse vibration tester.It comprises six part compositions such as experimental wwll cylinder 16, impulse oscillation system, control acquisition system, the circulation system, heating system, compression system.Its major function is in the simulated field well cementation process, and the grout in the toroidal cavity of injection test pit shaft 16 is applied the hydraulic impulse of certain frequency, certain amplitude and certain hour, detects grout then and solidifies the every performance index in back.
Specifically experimental wwll cylinder 16 comprises rubber hose coupling 26 (grout outlet), sebific duct stop valve 17, threeway 20, last stop valve 21, high pressure line 12, hydraulic line 10, barrier film back-up ring 25, simulation well 14, analog casing 15, goes up sleeve pipe locating ring 23, running casing locating ring 24, following stop valve 18, square elbow 22 and following rubber hose coupling 9 (grout import) as shown in Figure 1, 2.Wherein:
Simulation well 14 and two tubular structures of analog casing 15 for being nested together, the external diameter of simulation well 14 is greater than the external diameter of analog casing 15, form toroidal cavity between the inwall of simulation well 14 and the outer wall of analog casing 15, thereby simulated the hole structure of actual oil well in proportion.Form toroidal cavity between simulation well 14 and the analog casing 15, toroidal cavity communicates with last stop valve 21 and following stop valve 18, last rubber hose coupling 26 is connected with the threaded one end of sebific duct stop valve 17, the other end of stop valve 17 is threaded with the middle port of threeway 20, the upper port of threeway 20 is connected with high pressure line 12, the lower port of threeway 20 is threaded with the outlet of last stop valve 21, and the inlet of last stop valve 21 is threaded with experimental wwll cylinder 16.Be provided with barrier film back-up ring barrier film back-up ring 25 in the toroidal cavity upper end of experimental wwll cylinder 16 and the last stop valve 21 of hydraulic line 10 (see figure 2) junctions, barrier film back-up ring 25 covers the toroidal cavity of simulation well 14 and analog casing 15 formation when applying vibration.Sleeve pipe locating ring 23 and running casing locating ring 24 are fixed on analog casing 15 in the experimental wwll cylinder 14, and the sleeve pipe locating ring is made of the brace rod of inner and outer ring and two interannulars.The outlet of following stop valve 18 is threaded with the lower end of experimental wwll cylinder 14, and the inlet of following stop valve 18 is connected with the threaded one end of square elbow 22, and the other end of square elbow 22 is threaded with following rubber hose coupling 9.
In order to simulate in the well cementation process, the actual motion situation of grout in toroidal cavity, test instrument of the present invention is provided with the circulation system.The specifically described as shown in Figure 1 circulation system comprises ebullator 1, grout bucket 2 and associated line.The inlet of ebullator 1 is connected with grout bucket 2 through associated line, and the outlet of ebullator 1 is through connecting sebific duct with rubber hose coupling 9 pipelines connection down.Soft pipeline 11 1 ends connect upward, and rubber hose coupling 26 communicates other end connection grout bucket 2 with the toroidal cavity upper end of 15 of simulation well 14 analog casings.During test, pour grout into grout bucket 2 li,, inject from the toroidal cavity lower end of simulating 15 of well 14 and analog casings by associated line and following rubber hose coupling 9 by ebullator 1 suction.Treat to flow back to the grout bucket 2 by soft pipeline 11 from the toroidal cavity upper end after grout is filled with the back, afterwards upper and lower stop valve 21,18 is closed, can begin pressurization and impulse oscillation.Can heat up simultaneously in the circulation, also can earlier described toroidal cavity be heated to temperature requiredly, carry out the circulation under the simulation well again.The pipeline of grout circulation is detachable the connection with the rubber hose coupling up and down of described toroidal cavity (being that grout is imported and exported).After off-test, the following rubber hose coupling and the pipeline of described toroidal cavity are taken apart, open down stop valve 18 and just proof grout can be released.After treating that grout cleans out, will descend rubber hose coupling to be connected with pipeline again, it is additional by ebullator the grout in the toroidal cavity to be circulated then, is convenient to test next time.
In order to give the pressurization of the grout in the experimental wwll cylinder, test instrument of the present invention is provided with compression system.Specifically described as shown in Figure 1 compression system comprises compositions such as high-pressure nitrogen bottle, high pressure line 12, air release and stop valve.High pressure line 12 connects the upper end of the toroidal cavity of high-pressure nitrogen bottle and simulation well 14 and analog casing 15 formation.Can pressurize to simulation well 14 and the toroidal cavity that analog casing 15 forms by high-pressure nitrogen bottle.Pressure is by the pressure-regulating valve control that is arranged on the elevated pressure nitrogen gas tank.
For stable and adjustable vibration frequency and vibration amplitude being provided for experimental wwll cylinder 16, test instrument of the present invention is provided with the impulse oscillation system.The impulse oscillation system comprises pulse producer and pipeline etc. as described in specifically shown in Fig. 1,3.Described pulse producer comprises motor 3, cam 7, hydraulic cylinder 6 etc.Cam 7 is vertically fixed on its axle center on the motor shaft 29 of motor 3, and the end face of the pump piston 27 of hydraulic cylinder 6 contacts with the outer rim of cam 7, and pump piston is provided with the spring 28 that pump piston is resetted.Hydraulic cylinder 6 links to each other with the toroidal cavity upper end of described experimental wwll cylinder 16 by hydraulic line 10.When motor 3 drove cams 7 and rotates, cam 7 produced pulse with regard to 27 to-and-fro movements of driving pump piston, sent the hydraulic impulse vibration signal thus and acted on the grout in the described toroidal cavity by hydraulic line 10; And by hydraulic oil and grout being isolated the implementation dynamic seal (packing) with the inner barrier film back-up ring 25 that is provided with in hydraulic line 10 junctions on the described toroidal cavity.
Adjustable and constant for the temperature in the warranty test pit shaft 16, can further study the situation of change of cement slurry property in the different temperatures environment, test instrument of the present invention is provided with heating system.Concrete described as shown in Figure 1 heating system comprises temperature controller and is arranged on heating jacket on analog casing 15 outer walls etc.Temperature controller is set to a certain numerical value, opens heater switch, can be heated to target temperature the grout in the toroidal cavity.
For the test operation that makes test instrument of the present invention can be controlled automatically.Test instrument of the present invention is provided with the control acquisition system.It comprises that control panel 4 reaches with lower device:
1. frequency converter: adopting frequency resolution is the rotational frequency of motor 3 in the described impulse oscillation of the Frequency Converter Control system of 0.1Hz, thus the control wave occurrence frequency; Frequency converter is arranged on the control panel 4, and is connected with the motor 3 of described pulse producer; The setting range of frequency converter frequency is greater than 0.0Hz, smaller or equal to 50.0Hz; Frequency data directly are presented on the frequency converter on the control panel 4;
2. automatic thermostat: the temperature of grout in the heating that the automatic thermostat that adopts temperature control precision to reach 0.1 ℃ is controlled described heating arrangement is regulated in the experimental wwll cylinder; Automatic thermostat is arranged on the control panel 4, and is connected with the heating jacket of described heating system; Setting range is 0.0~200.0 ℃; Temperature data is presented on the automatic thermostat on the control panel 4;
3. tensimeter: be arranged on the control panel 4, and be connected with the toroidal cavity of experimental wwll cylinder 16; Pressure amplitude when wherein pulse table 19 is measured annulus pressure and vibration; Original pressure table 5 is measured by pressure system and is imposed on pressure in the described toroidal cavity, i.e. Shi Yan original pressure value; Described pressure data all is presented on the pulse table 19 and original pressure table 5 on the control panel 4.
The situation that test instrument of the present invention experimentizes is as follows: after configuring grout, be poured in the grout bucket 2, grout in the grout bucket 2 is pumped in the toroidal cavity of simulation well eye 14 and analog casing 15 formation by ebullator 1, grout can flow back to grout bucket 2 and forms infinite loop and (can at first the heating jacket in the experimental wwll cylinder be warming up to temperature requiredly in the test, then grout be carried out simulation loop through soft pipeline 11; Also can earlier grout be carried out simulation loop, simultaneously described heating jacket be heated up, treat that slurry temperature reaches temperature required and/or stops circulation during the time).When carrying out the impulse oscillation test, the following stop valve 18 of closing ebullator 1, experimental wwll cylinder 16 reaches in the toroidal cavity that upward stop valve 21 forms simulation well 14 and analog casing 15 and is full of grout; Grout by high-pressure nitrogen bottle and 12 pairs of described toroidal cavities of high pressure line is exerted pressure; Actuating motor 3 drives hydraulic cylinders 6, and hydraulic cylinder 6 promotes hydraulic oil and produces impulse oscillations, by hydraulic line 10, the hydraulic oil of pulsation is acted on the grout in the toroidal cavity that simulation well 14 and analog casing 15 form.Behind certain vibration frequency, vibration amplitude and time of vibration, grout after the vibration is carried out every performance detection, with do not vibrate or other vibration parameters under performance compare, promote grout to solidify the various parameters that the back obtains optimum performance thereby find out.

Claims (8)

1. a pulse vibration tester for cement slurry comprises experimental wwll cylinder (16), the circulation system, impulse oscillation system, heating system and compression system, it is characterized in that:
Described experimental wwll cylinder (16) comprises simulation well (14) and analog casing (15), simulation well (14) and analog casing (15) two tubular structures for being nested together and interfixing, the external diameter of simulation well (14) forms toroidal cavity greater than the external diameter of analog casing (15) between the inwall of simulation well (14) and the outer wall of analog casing (15); The upper end of toroidal cavity is provided with the grout outlet, and the lower end is provided with the grout import;
The described circulation system comprises ebullator (1) and grout bucket (2), ebullator (1) is extracted grout out from grout bucket (2), and grout is injected from the grout import of the toroidal cavity lower end of experimental wwll cylinder (16) by associated line, grout flows back to the grout bucket (2) from the grout outlet of toroidal cavity upper end by pipeline after filling described toroidal cavity, circulates;
Described impulse oscillation system comprises pulse producer, and the pressure line of pulse producer by communicating with toroidal cavity upper end between analog casing (15) with simulation well (14) applies the impulse oscillation pressure signal to the grout in the described toroidal cavity;
Described heating system comprises the heating arrangement that is arranged on the experimental wwll cylinder (16), and the grout in the toroidal cavity is heated;
Described compression system comprises pressure apparatus, by pressure line the grout in the toroidal cavity between simulation well (14) and analog casing (15) is pressurizeed.
2. pulse vibration tester for cement slurry according to claim 1, wherein said experimental wwll cylinder (16) comprises sleeve pipe locating ring (23) and running casing locating ring (24), last sleeve pipe locating ring (23) and running casing locating ring (24) are arranged on the two ends up and down of the toroidal cavity between simulation well (14) and analog casing (15), and analog casing (15) is fixed in the simulation well (14); Described sleeve pipe locating ring is an engraved structure on perpendicular to the xsect of ring axis.
3. pulse vibration tester for cement slurry according to claim 1, pulse producer in the wherein said impulse oscillation system comprises motor (3), cam (7) and hydraulic cylinder (6), cam (7) is vertically fixed on the main shaft of motor (3) with its axle center, the end face of the pump piston (27) of hydraulic cylinder (6) contacts with cam (7) outer rim, and hydraulic cylinder (6) links to each other with the toroidal cavity upper end of described experimental wwll cylinder (16) by hydraulic line (10); When motor (3) drove cam rotation, cam produced pulse with regard to the driving pump reciprocating motion of the pistons, sends the hydraulic impulse vibration signal thus, and acted on the interior grout of described toroidal cavity by hydraulic line (10); Inside in described toroidal cavity upper end and hydraulic line (10) junction is provided with barrier film back-up ring (25), and when in the impulse oscillation system grout being implemented impulse oscillation, barrier film back-up ring (25) carries out dynamic seal (packing) to described toroidal cavity.
4. pulse vibration tester for cement slurry according to claim 1, wherein said heating system comprise the heating jacket that is arranged on analog casing (15) outer wall.
5. pulse vibration tester for cement slurry according to claim 1, the pressure apparatus of wherein said compression system comprises elevated pressure nitrogen gas tank and high pressure line (12), high pressure line (12) connects the upper end of simulating the toroidal cavity between well (14) and analog casing (15) in elevated pressure nitrogen gas tank and the experimental wwll cylinder (16), by the interior grout pressurization of toroidal cavity that the elevated pressure nitrogen gas tank forms simulation well (14) and analog casing (15), pressure is by the pressure-regulating valve control that is arranged on the elevated pressure nitrogen gas tank.
6. according to each described pulse vibration tester for cement slurry of claim 1~5, comprising the control acquisition system, the control acquisition system comprises that control panel (4) reaches with lower device:
1. frequency converter: be arranged on the control panel (4), and be connected with the pulse producer of impulse oscillation system; The pulse signal occurrence frequency of described impulse oscillation system is by Frequency Converter Control, and frequency data directly are presented on the frequency converter on the control panel (4);
2. automatic thermostat: be arranged on the control panel (4), and be connected with the heating arrangement of described heating system; Control the temperature that (16) interior grout in the experimental wwll cylinder is regulated in the heating of described heating arrangement by automatic thermostat, temperature data is presented on the automatic thermostat on the control panel (4);
3. tensimeter: be arranged on the control panel (4), and be connected with the toroidal cavity of described experimental wwll cylinder (16); The surge pressure value of measuring the original pressure value in the described toroidal cavity and bringing by tensimeter by impulse oscillation pressure, and be presented on the tensimeter on the control panel (4).
7. pulse vibration tester for cement slurry according to claim 6, the motor (3) in the pulse producer of wherein said frequency converter and described impulse oscillation system is connected; The heating jacket that is arranged on analog casing (15) outer wall in described automatic thermostat and the described heating arrangement is connected.
8. pulse vibration tester for cement slurry according to claim 6, the setting range of the frequency of wherein said frequency converter are greater than 0.0Hz, smaller or equal to 50.0Hz; The temperature setting range of described automatic thermostat is 0.0~00.0 ℃.
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