CN2921267Y - Moving foaming device for low-density cement paste well cementation - Google Patents
Moving foaming device for low-density cement paste well cementation Download PDFInfo
- Publication number
- CN2921267Y CN2921267Y CN 200620041360 CN200620041360U CN2921267Y CN 2921267 Y CN2921267 Y CN 2921267Y CN 200620041360 CN200620041360 CN 200620041360 CN 200620041360 U CN200620041360 U CN 200620041360U CN 2921267 Y CN2921267 Y CN 2921267Y
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- foam
- pipeline
- gasholder
- supply system
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Abstract
The utility model belongs to technical field of electromechanical device and particularly relates to a movable foaming device used for shaft wall cementing with low-density cement grout, which comprises a liquid supply system, a gas supply system and a system for supplying foams, wherein, the liquid supply system comprises a tank for preparation, a mixer and a metering pump connected by pipelines. The gas supply system comprises an air compressor and a gas tank; meanwhile, the system for supplying foams comprises a foam generator, a coil pipe and an outlet for foam. All these components are assembled on a base. The utility model is characterized in flexible movement, reasonable structure and arrangement, convenient assembly and start-up, safe usage and operation and continuous foaming. The low-density cement grout produced by this utility model meets technical requirements of shaft wall cementing because this device produces air bubbles having average size and highly strengthened gas films.
Description
Technical field
The utility model belongs to the mechanical ﹠ electrical technology field, is specifically related to a kind of portable foam device that is used for the low-density cement mortar well cementation.
Background technology
Low-density cement mortar is for adapting to the class special cement slurry system that multiple complicated well cementation is developed, and density is at 1.10-1.45g/cm
3, be mainly used in: (1) leakiness lost territory layer and the well cementation of sub pressure gradient stratum prevent cement paste leakage and reservoir pollution, the protection oil-gas Layer; (2) contain the oil well of heavy corrosion water or gas in sealing gas well or the stratum, the well sealing of will demanding perfection of such well had not only increased the sealing performance but also the protective casing corrosion of oil gas well, all need reduce the density of cement paste; (3) even the stage cementing technology is adopted in the ultradeep well well cementation, also need to reduce as much as possible the static pressure of cement paste post, so that under lower pump pressure, obtain cementing quality preferably; (4) the supporting well cementation of under balance pressure drilling, under balance pressure drilling mainly utilizes some nconventional methods, routine or unconventional fluid (gas phase, gas-liquid two-phase, foam etc.), unconventional equipment etc. to solve the relevant difficult problem in the complicated reservoirs drilling process in the exploration and development, because its unconventional property, well cementation is had higher requirement, under balance pressure drilling well cementation supporting technology essence is exactly the nearly balance well cementation problem that will solve after the under balance pressure drilling, this means and want special concern to select reasonable cementing pressure reduction, suitable cementing concrete pulp density and proper construction technology.
At present being equipped with oil gas field with the legal system of getting angry cements the well and with low-density cement mortar two kinds of methods is arranged: 1. chemical gas generation.Realize by interpolation blowing agent and foam stabilizer in cement paste, this method complex process, and cost is higher; 2. mechanical aeration.Charge into nitrogen or air in cement paste, this method construction is complicated, and ground installation is many.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, conveniently moving, the portable foam device that is used for the low-density cement mortar well cementation that practicality is good.
The portable foam device that the utility model proposes is by liquid-supplying system, air supply system and supply the bubble system to form, and its structure as shown in Figure 1.The function of liquid-supplying system is preparation, metering and carries expanding foam solution, connected to form through pipeline by parts such as preparation case, agitator and measuring pumps; The function of air supply system provides the compressed air of foaming institute palpus, is connected to form through pipeline by parts such as compressor and gasholder; For the bubble system is the function that the utility model finally will be realized, produces the bubble that is used to prepare low-density cement mortar, is made up of foam maker, coil pipe and bubble output hole.
In the liquid-supplying system, preparation case 1 is provided with water inlet pipe 2 and expanding foam solution feed tube 4, is respectively applied for to inject tap water and expanding foam solution, and stirring motor 3 is installed on the preparation case 1, can drive the agitator in the preparation case 1, and measuring pump 5 has pipeline 16 to be connected with preparation case 1; In the air supply system, air compressor 15 is driven by motor 14, and is connected with gasholder 12 by pipeline 13; In the bubble system, foam maker 8, coil pipe 10 and foam outlet 11 are assembled on the gasholder 12, gasholder 12 has pipeline 7 to be connected with foam maker 8, foam maker 8 has pipeline 9 to be connected with coil pipe 10, foam outlet 1 directly is connected with coil pipe 10, and measuring pump has pipeline 6 to be connected with foam maker 8; Gasholder 12, motor 14, air compressor 15, measuring pump 5 and preparation case 1 are assembled on the base 17.
The utility model has taken into full account the needs of well cementation field operation.At first be mobility, all devices of this invention all is installed on the base 17, and base 17 is lifted on the haulage vehicle, can be transported to the well cementation scene easily; Next is the requirement according to well cementing operation, and all motors and control system all are explosion-proof, to guarantee job safety.
Each component layouts of the present utility model is reasonable, easy to assembly, whole device satisfies every technical requirements of oil field equipment, has passed through reliability tests such as indoor vibration-testing and real road test, and various electric and control appliances also meet oil field field operation requirement.
The utility model prepares bubble with physical method, does not have chemical reaction, and technology is simple, and cost is lower, and ground installation is few, and is easy to operate.
During actual the use, at first the expanding foam solution that configures is injected preparation case 1 by feed tube 4, add suitable quantity of water through water inlet pipe 2, configure the concentration of expanding foam solution as required, start stirring motor 3, make expanding foam solution concentration even, adjust the operating pressure of gasholder 12, set the flow of measuring pump 5, starter motor 14 then, drive air compressor 15 work; Restart measuring pump 5, expanding foam solution in the preparation case 1 is flowed through by certain flow behind the measuring pump 5,6 enter foam maker 8 by the road, compressed air from gasholder 12 7 enters foam maker 8 by the road, impact expanding foam solution at foam maker 8 inner high voltage gases and make its foaming, the bubble that comes out from foam maker 89 is flowed through behind the coil pipe 10 by the road, flows out by bubble output hole 11.Can produce independent, airtight, of uniform size bubble with this foaming machine, bubble surface film-strength height, the life-span is long, meets the cementing technology requirement with the low-density cement mortar of its preparation.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Number in the figure: 1. preparation case, 2. water inlet pipe, 3. stirring motor, 4. feed tube, 5. measuring pump, 6. pipeline, 7. pipeline, 8. foam maker, 9. pipeline, 10. coil pipe, 11. bubble output holes, 12. gasholder, 13. pipeline, 14. motors, 15. air compressors, 16. pipelines, 17. bases.
The specific embodiment
In the utility model, motor 3 and motor 14 all adopt fire-proof motor, and power of motor is selected according to actual needs, and gasholder 12 adopts horizontal gasholder, and compressor 15 adopts screw air compressor.Main building block and layout as shown in Figure 1, by preparation case 1, explosion-proof stirring motor 3, measuring pump 5, foam maker 8, coil pipe 10, bubble output hole 11, horizontal gasholder 12, screw air compressor 15, fire-proof motor 14, base 17 connect to form through pipeline.Be respectively equipped with water inlet pipe 2 and expanding foam solution feed tube 4 on the preparation case 1, after expanding foam solution and water mix in preparation case 1, it stirred by explosion-proof stirring motor 3.Measuring pump 5 is near preparation casees 1, is connected by pipeline 16 between preparation case 1 and the measuring pump 5, and measuring pump 5 flows can be regulated as required.Fire-proof motor 14 drives the compressed air that the screw air compressor 15 that is positioned at its top produces high pressure, and compressed air 13 enters horizontal gasholder 12 by the road, and the pressure of adjusting gasholder 12 is after setting value, and compressed air just can be used for foaming.Screw air compressor 15 and fire-proof motor 14 are formed unit, near measuring pump 5.Horizontal gasholder 12 is fixed on the base 17, foam maker 8, coil pipe 10 and bubble output hole 11 have been installed respectively above horizontal gasholder 12, from the compressed air of the expanding foam solution of measuring pump 5 and horizontal gasholder 12 respectively by the road 6 and pipeline 7 enter foam maker 8, the bubble that comes out from foam maker 89 is flowed through behind the coil pipe 10 by the road, flows out by bubble output hole 11.Micro bubbles is transported to designated equipment by pipeline can produces various low-density cement pastes.
Concrete operations step of the present utility model is as follows:
1). expanding foam solution and tap water are injected preparation case 1 from feed tube 4 and water inlet pipe 2 respectively in 1: 24 ratio, start explosion-proof stirring motor 3 to solution concentration and evenly end.
2). start fire-proof motor 14, drive screw air compressor 15 work, produce gases at high pressure, gases at high pressure 13 enter horizontal gasholder 12 by the road, and the pressure of adjusting horizontal gasholder 12 is behind 0.2Mpa, and compressed air just can be used to foam.
3). starting measuring pump 5, adjust flow according to density requirements, is 1.45kg/cm as obtaining density
3Cement paste, adjusting the measuring pump flow is that 0.36kg/s just can reach requirement.
4). expanding foam solution 16 is pumped into the foam maker 8 by measuring pump 5 by the road from preparation case 1, from the compressed air of the expanding foam solution of measuring pump 5 and horizontal gasholder 12 respectively by the road 6 and pipeline 7 enter foam maker 8, impact expanding foam solution at foam maker 8 inner high voltage gases and make its foaming, the bubble that comes out from foam maker 89 is flowed through behind the coil pipe 10 by the road, flows out by bubble output hole 11.The density of the foam that flows out from foaming machine is approximately 0.01kg/L.Adjustable continuously for bubble speed, the maximum bubble amount that supplies can reach 30000L/h.
Adjusting expanding foam solution measuring pump 5 flows is 0.36kg/s, and the air pressure of adjusting horizontal gasholder 12 is 0.2Mpa, is that 0.44 G level oil well cement mixes with water/binder ratio, and can obtain density is 1.45kg/cm
3Cement paste (pumping rate of cement paste is 0.9m
3/ min);
Adjusting expanding foam solution measuring pump 5 flows is 0.54kg/s, and the air pressure of adjusting horizontal gasholder 12 is 0.2Mpa, is that 0.44 G level oil well cement mixes with water/binder ratio, and can obtain density is 1.25kg/cm
3Cement paste (pumping rate of cement paste is 0.9m
3/ min).
Claims (2)
1, a kind of portable foam device that is used for the low-density cement mortar well cementation is characterized in that being made up of liquid-supplying system, air supply system and confession bubble system; Wherein, in the liquid-supplying system, preparation case (1) is provided with water inlet pipe (2) and expanding foam solution feed tube (4), be respectively applied for and inject tap water and expanding foam solution, stirring motor (3) is installed on the preparation case (1), can drive the agitator in the preparation case (1), measuring pump (5) has pipeline (16) to be connected with preparation case (1); In the air supply system, air compressor (15) is driven by motor (14), and is connected with gasholder (12) by pipeline (13); In the bubble system, foam maker (8), coil pipe (10) and foam outlet (11) are assembled on the gasholder (12); Gasholder (12) has pipeline (7) to be connected with foam maker (8), and foam maker (8) has pipeline (9) to be connected with coil pipe (10), and foam outlet (1) directly is connected with coil pipe (10), and measuring pump has pipeline (6) to be connected with foam maker (8); Gasholder (12), motor (14), air compressor (15), measuring pump (5) and preparation case (1) are assembled on the base (17).
2, the portable foam device that is used for the low-density cement mortar well cementation according to claim 1 is characterized in that described stirring motor (3) and motor (4) adopt fire-proof motor, and air compressor (15) adopts screw air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620041360 CN2921267Y (en) | 2006-04-27 | 2006-04-27 | Moving foaming device for low-density cement paste well cementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620041360 CN2921267Y (en) | 2006-04-27 | 2006-04-27 | Moving foaming device for low-density cement paste well cementation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921267Y true CN2921267Y (en) | 2007-07-11 |
Family
ID=38253746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620041360 Expired - Fee Related CN2921267Y (en) | 2006-04-27 | 2006-04-27 | Moving foaming device for low-density cement paste well cementation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921267Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929319A (en) * | 2010-08-26 | 2010-12-29 | 中国石油集团川庆钻探工程有限公司长庆运输总公司 | Physical foaming cement well cementation technology and supporting system |
| CN101403285B (en) * | 2008-11-18 | 2012-05-23 | 中国石油集团川庆钻探工程有限公司 | Physical foam cementing method |
| CN103223690A (en) * | 2013-04-15 | 2013-07-31 | 马鞍山十七冶工程科技有限责任公司 | Combined foam generator for light foam concrete foaming agent |
| CN104420847A (en) * | 2013-08-29 | 2015-03-18 | 中国石油化工股份有限公司 | Method for preparing foamed cement slurry |
| CN104986576A (en) * | 2015-05-26 | 2015-10-21 | 兖矿集团有限公司 | Mining cement foaming machine using pneumatic transmission and construction process thereof |
| CN109514740A (en) * | 2017-09-18 | 2019-03-26 | 中国石油化工股份有限公司 | A kind of foam slurry cementing equipment and method |
| US11846154B2 (en) | 2020-12-11 | 2023-12-19 | Heartland Revitalization Services Inc. | Portable foam injection system |
-
2006
- 2006-04-27 CN CN 200620041360 patent/CN2921267Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403285B (en) * | 2008-11-18 | 2012-05-23 | 中国石油集团川庆钻探工程有限公司 | Physical foam cementing method |
| CN101929319A (en) * | 2010-08-26 | 2010-12-29 | 中国石油集团川庆钻探工程有限公司长庆运输总公司 | Physical foaming cement well cementation technology and supporting system |
| CN101929319B (en) * | 2010-08-26 | 2013-10-16 | 中国石油集团川庆钻探工程有限公司长庆运输总公司 | Physical foaming cement well cementation technology and matching system |
| CN103223690A (en) * | 2013-04-15 | 2013-07-31 | 马鞍山十七冶工程科技有限责任公司 | Combined foam generator for light foam concrete foaming agent |
| CN104420847A (en) * | 2013-08-29 | 2015-03-18 | 中国石油化工股份有限公司 | Method for preparing foamed cement slurry |
| CN104420847B (en) * | 2013-08-29 | 2017-06-13 | 中国石油化工股份有限公司 | The compound method and device of a kind of foam slurry and its application |
| CN104986576A (en) * | 2015-05-26 | 2015-10-21 | 兖矿集团有限公司 | Mining cement foaming machine using pneumatic transmission and construction process thereof |
| CN109514740A (en) * | 2017-09-18 | 2019-03-26 | 中国石油化工股份有限公司 | A kind of foam slurry cementing equipment and method |
| CN109514740B (en) * | 2017-09-18 | 2021-03-23 | 中国石油化工股份有限公司 | Foam cement slurry well cementation equipment and method |
| US11846154B2 (en) | 2020-12-11 | 2023-12-19 | Heartland Revitalization Services Inc. | Portable foam injection system |
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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: 20070711 Termination date: 20140427 |