CN201284636Y - Circulating foam simulation experiment apparatus - Google Patents
Circulating foam simulation experiment apparatus Download PDFInfo
- Publication number
- CN201284636Y CN201284636Y CNU200820141304XU CN200820141304U CN201284636Y CN 201284636 Y CN201284636 Y CN 201284636Y CN U200820141304X U CNU200820141304X U CN U200820141304XU CN 200820141304 U CN200820141304 U CN 200820141304U CN 201284636 Y CN201284636 Y CN 201284636Y
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- foam
- base fluid
- stop valve
- defoamer
- mechanical defoaming
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Abstract
The utility model relates to a circulative foam simulation testing device used for simulating the circulative foam drilling in petroleum and natural gas drilling. The device consists of a base liquid adding system, a gas supply system, a foam heating system, a mechanical defoaming device system and a chemical antifoam agent adding system. The base liquid adding system, the gas supply system, the foam heating system, the mechanical defoaming device system and the chemical antifoam agent adding system are connected with each other to form a closed integral testing system, thus executing the circulation utilization of the foam. The device has the beneficial effects as follows: 1. by monitoring the parameters at the outlet of a sampling device such as foam quality, half life, temperature, pressure, density and the like, the quick adjustment of the foam performance can be realized, thus achieving the object of simulating the high-temperature and high-pressure environment under the well; 2. The simulation testing device sufficiently utilizes the synergistic action of combined chemical and mechanical defoaming, overcomes the shortage that the single defoaming efficiency is deficient and is beneficial for realizing the circulation utilization of the foam.
Description
Technical field
The utility model relates to the foam analogue experiment installation a kind of capable of circulation that the simulation loop foam drilling is used in oil and gas well drilling.
Background technology
The aerated fluid technology starts from the 1950's, domesticly begins the research and the application of aerated fluid drilling technology in the eighties, and in succession in Xinjiang, oil fields such as triumph, the Liaohe River, grand celebration, long celebrating, Sichuan obtain field practice.Aerated fluid is compared with the conventional mud drilling well owing to have the unique texture different with common fluid, and foam drilling has following remarkable advantage: 1, improve drilling speed, prolong the application life of drill bit; 2, the drilling fluid leakage amount is low, can reduce formation damage; 3, large rock-carrying ability is strong, can remove the shaft bottom landwaste effectively; 4, oil is obvious; 5, viscosity height, liquid column hydrostatic pressure low, can significantly reduce formation leakage.Therefore; the foam drilling technology is used more on low pressure, low permeability reservoirs and leakiness stratum; be one of effective method of realizing by under balance pressure drilling protection low pressure oil gas reservoir, along with the old and new's Oilfield developing, the drillng operation of making circulatory mediator with foam can constantly increase.
Present foam drilling technology exists the disposable use amount of foam big, and problems such as the easy contaminated environment of returning out of foam not only increase the foam drilling cost, and are unfavorable for applying of foam drilling technology.Aerated fluid is recycling to have become the common technical barrier of paying close attention to both at home and abroad, " bottleneck " problem that restricts this technology be to be difficult to find a kind of efficient, eliminate the effective ways of a large amount of foams that return out from well head fast.Froth breaking method commonly used at present comprises the physical defoaming method; The mechanical defoaming method; Four kinds of chemistry froth breaking method and natural froth breaking methods etc., all there is deficiency in they when eliminating foam.Physical defoaming can not be handled a large amount of foams, only is applicable to some emergency measure; Mechanical defoaming not only needs optional equipment, and defoamed ratio is not high; The construction of chemistry froth breaking method is simple, defoamed ratio is high, but the defoamer consumption is big, and cost is higher; Nature froth breaking floor space is big, foam time is long.
Patent CN200510078221.1 has introduced the recycling method of drilling well foam, the foam that returns to well head is directly imported closed-cycle system, remove landwaste wherein in confined conditions, utilize the foam pressurization system that it is carried out supercharging then, make the value that its pressure reaches to be needed, it is entered converge, realize recycling into well casing.Adopt the patent introduction of Mechanical Method froth breaking in addition in addition.Owing to lack the experimental facilities of using in lab simulation circulation foam drilling at present, so the experimental facilities that research is used in lab simulation circulation foam drilling develops the foam drilling technology, it is significant to find out best debubbling method.
The utility model content
The experimental facilities that provides a kind of simulation loop foam drilling to use is provided the utility model purpose, for research foam drilling technology provides experimental data and theoretical foundation.
The technical scheme that the utility model adopted is: a kind of foam analogue experiment installation capable of circulation is connected and composed by base fluid add-on system, air supply system, foam heating system, mechanical defoaming device system and chemical defoamer add-on system, and it links to each other with the chemical defoamer add-on system by base fluid add-on system, air supply system, foam heating system, mechanical defoaming device system and forms closed integral experiment system.
Described base fluid add-on system is installed in regular turn by foam base fluid jar, stop valve, measuring pump, orifice flowmeter and is formed; Described air supply system is made up of the connection in regular turn of air compressor machine, atmospheric valve, gas tank, stop valve, spinner flowmeter, stop valve; Form gas-liquid mixed stream by base fluid add-on system and air supply system, enter foam maker; The foam maker port of export is equipped with pressure meter and stop valve; Enter the gas liquid ratio and the pressure of foam maker by adjusting, can realize simulating the purpose of the pressure environment of foam drilling.
Described foam heating system is connected to form by cable heat tracing pipe, thermocouple thermometer, stop valve, foam sampler: the port of export of foam sampler is equipped with pressure meter and stop valve; Can reach the purpose of hot environment under the simulation well by regulating cable heat tracing pipe temperature, the foam sampler can be used to monitor in real time parameters such as foam quality, half-life, temperature, pressure, density.
Described mechanical defoaming device system is equipped with shower at the top of mechanical defoaming device, and the defoamer that pumps out from the defoamer storage tank evenly is sprayed onto on the foam by shower, reaches the purpose of chemical froth breaking; The two ends of mechanical defoaming device are symmetrically installed with brokenly the bubble nozzle, aerated fluid is by the ejection of broken bubble nozzle, utilize its impact force, shearing force and produce negative pressure and realize mechanical defoaming,, can regulate the defoaming effectiveness of mechanical defoaming device by changing brokenly the nozzle quantity and the aperture of bubble nozzle.
Described chemical defoamer add-on system is to distribute the part base fluid from the foam base fluid jar, enter the defoamer storage tank through stop valve, centrifugal pump, after chemical defoamer and foam base fluid process in the defoamer storage tank stirs and fully is mixed, enter shower by centrifugal pump, stop valve and pressure meter, constitute the chemical defoamer add-on system thus; By from the foam base fluid jar, introducing the part base fluid defoamer is diluted, enter mechanical defoaming device from shower then, in mechanical defoaming device, realize chemistry and mechanically combining froth breaking.
Liquid behind the broken bubble through centrifugal pump, stop valve, is back to the foam base fluid jar from the mechanical defoaming device bottom, realizes the recycling of foam.
The beneficial effects of the utility model are: 1, by parameters such as monitoring sampler outlet foam quality, half-life, temperature, pressure, density, can realize the quick adjustment of foaming properties, reach the purpose of high temperature and high pressure environment under the simulation well; 2, analogue experiment installation makes full use of the synergistic effect of chemistry and mechanically combining froth breaking, overcomes the shortcoming of single froth breaking method defoaming effectiveness deficiency, helps realizing the recycling of foam.
Description of drawings
1. foam base fluid jars, 2. stop valve, 3. measuring pump among the figure, 4. orifice flowmeter, 5. air compressor machine, 6. atmospheric valve, 7. gas tank, 8. stop valve, 9. spinner flowmeter, 10. stop valve, 11. foam makers, the pressure meter of 12. ports of export, 13. stop valve, 14. cable heat tracing pipes, 15. thermocouple thermometers, 16. stop valve, 17. foam samplers, the pressure meter of 18. ports of export, 19. stop valve, 20. mechanical defoaming devices, 21. broken bubble nozzles, 22. shower, 23. pressure meters, 24. stop valves, 25. measuring pump, 26. defoamer storage tanks, 27. centrifugal pumps, 28. stop valve, 29. centrifugal pumps, 30. stop valves.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.A kind of foam analogue experiment installation capable of circulation of the utility model is connected and composed by base fluid add-on system, air supply system, foam heating system, mechanical defoaming device system and chemical defoamer add-on system, and it links to each other with the chemical defoamer add-on system by base fluid add-on system, air supply system, foam heating system, mechanical defoaming device system and forms closed integral experiment system.
Described base fluid add-on system is installed in regular turn by foam base fluid jar 1, stop valve 2, measuring pump 3, orifice flowmeter 4 and is formed; Described air supply system is made up of air compressor machine 5, atmospheric valve 6, gas tank 7, stop valve 8, spinner flowmeter 9, stop valve 10 connection in regular turn; Form gas-liquid mixed stream by base fluid add-on system and air supply system, enter foam maker 11; Foam maker 11 ports of export are equipped with pressure meter 12 and stop valve 13; Enter the gas liquid ratio and the pressure of foam maker 11 by adjusting, can realize simulating the purpose of the pressure environment of foam drilling.
Described foam heating system is connected to form by cable heat tracing pipe 14, thermocouple thermometer 15, stop valve 16, foam sampler 17: the port of export of foam sampler 17 is equipped with pressure meter 18 and stop valve 19; Can reach the purpose of hot environment under the simulation well by the temperature of regulating cable heat tracing pipe 14, foam sampler 17 can be used to monitor in real time parameters such as foam quality, half-life, temperature, pressure, density.
Described mechanical defoaming device system is equipped with shower 22 at the top of mechanical defoaming device 20, and the defoamer that pumps out from defoamer storage tank 26 evenly is sprayed onto on the foam by shower 22, reaches the purpose of chemical froth breaking; The two ends of mechanical defoaming device 20 are symmetrically installed with brokenly bubble nozzle 21, aerated fluid is by broken bubble nozzle 21 ejections, utilize its impact force, shearing force and produce negative pressure and realize mechanical defoaming, by changing brokenly the nozzle quantity and the aperture of bubble nozzle 21, can regulate the defoaming effectiveness of mechanical defoaming device 20.
Described chemical defoamer add-on system is to distribute the part base fluid from foam base fluid jar 1, enter defoamer storage tank 26 through stop valve 28, centrifugal pump 27, after chemical defoamer and foam base fluid process in defoamer storage tank 26 stirs and fully is mixed, enter shower 22 by centrifugal pump 25, stop valve 24 and pressure meter 23, constitute the chemical defoamer add-on system thus; By from foam base fluid jar 1, introducing the part base fluid defoamer is diluted, enter mechanical defoaming device 20 from shower 22 then, in mechanical defoaming device 20, realize chemistry and mechanically combining froth breaking.Liquid behind the broken bubble through centrifugal pump 29, stop valve 30, is back to foam base fluid jar 1 from mechanical defoaming device 20 bottoms, realizes the recycling of foam.
Operating principle:
In foam base fluid jar 1, prepare certain density stable foam in advance, foam base fluid enters hole formula foam maker 11 by stop valve 2, centrifugal pump 3, orifice flowmeter 4, and air enters hole formula foam maker 11 via air compressor machine 5, gas tank 7, stop valve 8, spinner flowmeter 9, stop valve 10.The adjustments of gas flow is 1.5m
3/ min, fluid flow are 17.81/min, and this moment, gas liquid ratio was 84.3.Enter the foam heating system from the pressure meter 12 of hole formula foam maker 11 ports of export and the foam of stop valve 13 outflows.After cable heat tracing pipe 14 heating, it is 81 ℃ that thermocouple thermometer 15 records foam temperature, indoorly records that foam quality is 86.2% in the foam sampler 17, and half foam life period is 45min, and the reading of the port of export pressure meter 18 of foam sampler 17 is 1.3MPa.
Enter the mechanical defoaming device system from the pressure meter 18 of foam sampler 17 ports of export and high temperature, the high pressure foam of stop valve 19 outflows.The nozzle that it is 2mm that the two ends of mechanical defoaming device 20 are symmetrically installed with 10 diameters respectively.
Distribute the part base fluid from foam base fluid jar 1, enter defoamer storage tank 26 through stop valve 28, centrifugal pump 27, in defoamer storage tank 26, be added with chemical defoamer, after chemical defoamer and foam base fluid process in defoamer storage tank 26 stirs and fully mixes, enter shower 22 by measuring pump 25, stop valve 24 and pressure meter 23, by shower 22 chemical defoamer evenly is sprayed onto on the foam, realizes the purpose of chemical froth breaking.
Test result shows: single mechanical defoaming rate is 60.5%, single chemical defoamed ratio is 85.0%, realize chemistry and mechanically combining froth breaking in mechanical defoaming device 20, defoamed ratio can reach 97.0%, and remaining foam is realized the nature froth breaking in mechanical defoaming device 20.Liquid behind the broken bubble through centrifugal pump 29, stop valve 30, is back to foam base fluid jar 1 from mechanical defoaming device 20 bottoms, realizes the recycling of foam.
Claims (4)
1. a foam analogue experiment installation capable of circulation is made of base fluid add-on system, air supply system, foam heating system, mechanical defoaming device system and chemical defoamer add-on system, it is characterized in that: linking to each other by base fluid add-on system, air supply system, foam heating system, mechanical defoaming device system and chemical defoamer add-on system forms closed integral experiment system; Described mechanical defoaming device system is equipped with shower (22) at the top of mechanical defoaming device (20), and the defoamer that pumps out from defoamer storage tank (26) evenly is sprayed onto on the foam by shower (22), realizes the effect of chemical froth breaking; Described chemical defoamer add-on system is to distribute the part base fluid from foam base fluid jar (1), enter defoamer storage tank (26) through stop valve (28), centrifugal pump (27), chemical defoamer and foam base fluid process in defoamer storage tank (26) enters shower (22) by centrifugal pump (25), stop valve (24) and pressure meter (23) after stirring and fully being mixed.By from foam base fluid jar (1), introducing the part base fluid defoamer is diluted, enter mechanical defoaming device (20) from shower (22) then, in mechanical defoaming device (20), realize chemistry and mechanically combining froth breaking.
2. a kind of foam analogue experiment installation capable of circulation according to claim 1 is characterized in that: described base fluid add-on system is installed in regular turn by foam base fluid jar (1), stop valve (2), measuring pump (3), orifice flowmeter (4) and is formed; Described air supply system is made up of air compressor machine (5), atmospheric valve (6), gas tank (7), stop valve (8), spinner flowmeter (9), stop valve (10) connection in regular turn; Form gas-liquid mixed stream by base fluid add-on system and air supply system, enter foam maker (11); Foam maker (11) port of export is equipped with pressure meter (12) and stop valve (13); Enter the gas liquid ratio and the pressure of foam maker (11) by adjusting, can realize simulating the purpose of the pressure environment of foam drilling.
3. a kind of foam analogue experiment installation capable of circulation according to claim 1 is characterized in that: described foam heating system is connected to form by cable heat tracing pipe (14), thermocouple thermometer (15), stop valve (16), foam sampler (17); The port of export of foam sampler (17) is equipped with pressure meter (18) and stop valve (19); Can reach the purpose of hot environment under the simulation well by the temperature of regulating cable heat tracing pipe (14), foam sampler (17) can be used to monitor in real time parameters such as foam quality, half-life, temperature, pressure, density.
4. a kind of foam analogue experiment installation capable of circulation according to claim 1, it is characterized in that: the two ends of mechanical defoaming device (20) are symmetrically installed with brokenly bubble nozzle (21), aerated fluid is by broken bubble nozzle (21) ejection, utilize its impact force, shearing force and produce negative pressure and realize mechanical defoaming, by changing brokenly the nozzle quantity and the aperture of bubble nozzle (21), can regulate the defoaming effectiveness of mechanical defoaming device (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820141304XU CN201284636Y (en) | 2008-11-07 | 2008-11-07 | Circulating foam simulation experiment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820141304XU CN201284636Y (en) | 2008-11-07 | 2008-11-07 | Circulating foam simulation experiment apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284636Y true CN201284636Y (en) | 2009-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820141304XU Expired - Fee Related CN201284636Y (en) | 2008-11-07 | 2008-11-07 | Circulating foam simulation experiment apparatus |
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| CN (1) | CN201284636Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871330A (en) * | 2010-07-20 | 2010-10-27 | 西南石油大学 | Foam cyclic utilization method by utilizing low carbon alcohol to realize foam drilling |
| CN101975716A (en) * | 2010-09-10 | 2011-02-16 | 长沙理工大学 | Device for testing foaming performance of foam asphalt |
| CN101701902B (en) * | 2009-11-20 | 2011-06-22 | 同济大学 | Theoretical measurement method for expansivity and half-life period of foamed asphalt |
| CN103195372A (en) * | 2013-04-24 | 2013-07-10 | 中国水电顾问集团中南勘测设计研究院 | Spiral drill bit, foam drilling device and foam drilling process |
| CN104931655A (en) * | 2015-06-15 | 2015-09-23 | 中铁十一局集团第五工程有限公司 | Foam generating testing equipment allowing foam quality to be adjusted |
| CN111359266A (en) * | 2020-04-09 | 2020-07-03 | 北京国电龙源环保工程有限公司 | System for defoaming slurry outside desulfurization absorption tower and measuring density and construction method |
-
2008
- 2008-11-07 CN CNU200820141304XU patent/CN201284636Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701902B (en) * | 2009-11-20 | 2011-06-22 | 同济大学 | Theoretical measurement method for expansivity and half-life period of foamed asphalt |
| CN101871330A (en) * | 2010-07-20 | 2010-10-27 | 西南石油大学 | Foam cyclic utilization method by utilizing low carbon alcohol to realize foam drilling |
| CN101975716A (en) * | 2010-09-10 | 2011-02-16 | 长沙理工大学 | Device for testing foaming performance of foam asphalt |
| CN101975716B (en) * | 2010-09-10 | 2012-01-11 | 长沙理工大学 | Device for testing foaming performance of foam asphalt |
| CN103195372A (en) * | 2013-04-24 | 2013-07-10 | 中国水电顾问集团中南勘测设计研究院 | Spiral drill bit, foam drilling device and foam drilling process |
| CN103195372B (en) * | 2013-04-24 | 2016-08-17 | 中国电建集团中南勘测设计研究院有限公司 | A kind of screw type bit and a kind of foam drilling device and foam drilling technique |
| CN104931655A (en) * | 2015-06-15 | 2015-09-23 | 中铁十一局集团第五工程有限公司 | Foam generating testing equipment allowing foam quality to be adjusted |
| CN104931655B (en) * | 2015-06-15 | 2016-08-17 | 中铁十一局集团第五工程有限公司 | The foam of adjustable foam quality produces testing equipment |
| CN111359266A (en) * | 2020-04-09 | 2020-07-03 | 北京国电龙源环保工程有限公司 | System for defoaming slurry outside desulfurization absorption tower and measuring density and construction method |
| CN111359266B (en) * | 2020-04-09 | 2022-04-22 | 国能龙源环保有限公司 | System for defoaming slurry outside desulfurization absorption tower and measuring density and construction 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20111107 |