CN103470235A - High-pressure nitrogen foam generation measuring and control device - Google Patents
High-pressure nitrogen foam generation measuring and control device Download PDFInfo
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- CN103470235A CN103470235A CN2013104606980A CN201310460698A CN103470235A CN 103470235 A CN103470235 A CN 103470235A CN 2013104606980 A CN2013104606980 A CN 2013104606980A CN 201310460698 A CN201310460698 A CN 201310460698A CN 103470235 A CN103470235 A CN 103470235A
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Abstract
The invention belongs to a measuring and control device and particularly relates to a high-pressure nitrogen foam generation measuring and control device. The high-pressure nitrogen foam generation measuring and control device comprises a foam generator, an electric cabinet and an agent tank, wherein the agent tank is connected with the foam generator by a pipeline; the joint of the agent tank and the foam generator is provided with a check valve; the front end of the foam generator is provided with a high-pressure nitrogen inlet; the rear end of the foam generator is provided with a foam outlet; the foam generator is also connected with a high-pressure water inlet by the pipeline; the front end of the high-pressure water inlet is connected with a flowmeter for controlling water flow rate. Nitrogen is compressed to required pressure, an agent with certain flow is provided by a metering pump, the agent, the nitrogen and liquid are mixed and enter the foam generator to generate foam fluid with even density, and the density of the foam fluid is adjustable so as to adapt to process requirements under different working conditions.
Description
Technical field
The invention belongs to a kind of measure and control device, specifically a kind of high pressure nitrogen foam generation measure and control device.
Background technology
China's bottom water reservoir reserves are abundant, have serious bottom water coning phenomenon in the bottom water reservoir development process, affected the exploitation of bottom water reservoir.Improve the high water-cut well development effectiveness in this oil field, control the key that straight well bottom water coning and horizontal well bottom water coning become oilfield stable production.In order effectively to implement the steady oil control of nitrogen foam water extraction high recovery rate technology, the observing and controlling of nitrogen foam is just seemed to particularly important.
In prior art, the generating means of nitrogen foam exists the problems such as measurement control integrated degree is low, and automation degree of equipment is not high.Therefore, need technical progress, structural improvement, make the design of nitrogen foam generation measure and control device more reasonable.
Summary of the invention
The present invention is directed to the problem of above-mentioned existence, high pressure nitrogen foam generation measure and control device is provided.This device is to need configure for operating mode that aerated fluid is injected in the oil gas field down-hole, by this device, isolated nitrogen G&W, frother in air are fully mixed to the uniform aerated fluid of rear formation, and can regulate control to flow and the density of aerated fluid.
High pressure nitrogen foam generation measure and control device, comprise foam maker, electric control box, pharmacy jar, wherein, pharmacy jar is connected with foam maker by pipeline, pharmacy jar and foam maker junction are equipped with flap valve, and described foam maker front end is provided with the high pressure nitrogen import, and the foam maker rear end is provided with foam outlet, described foam maker also is connected with the water under high pressure import by pipeline, and the front end of water under high pressure import is connected with the flow meter of controlling discharge.
Preferably, described foam maker also is connected with dosing pump assembly, and described dosing pump assembly is connected with air inlet port by pipeline.
Preferably, the high pressure nitrogen import department of foam maker front end setting is equipped with gas-distribution pipe, and described gas-distribution pipe is provided with joint ring.
Preferably, described pharmacy jar is carried liquid by the feed tube be arranged in pipeline to foam maker.
Preferably, the foam outlet place that the foam maker rear end arranges is equipped with the back-up ring structure, and the foam outlet place that the foam maker rear end arranges also is equipped with filler device, and back-up ring is connected with filler device.
Nitrogen pressure is reduced to certain pressure, the medicament of certain flow is provided by measuring pump, and medicament, nitrogen, liquid are mixed into foam maker, generate the aerated fluid of even density, aerated fluid density can be regulated, to adapt to the process requirements under different working conditions.Can also set the density value of required foam according to concrete working condition requirement, by regulating controlled parameter value, realize the Auto-regulating System of Density of Heavy Medium of aerated fluid.
The accompanying drawing explanation
The structural representation that Fig. 1 is measure and control device of the present invention;
The structural representation that Fig. 2 is foam maker.
In figure, 1, the high pressure nitrogen import; 2, water under high pressure import; 3, measuring pump; 4, foam maker; 5, foam outlet; 6, standby mouthful of a; 7, standby mouthful of b; 8, air inlet pipe; 9, gas-distribution pipe; 10, filler device; 11, outlet.
The specific embodiment
For making technical scheme of the present invention and characteristics clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail.At this, following examples are used for the present invention is described, but are not used for limiting the scope of the invention.
As shown in Figure 1, nitrogen is injected to high pressure nitrogen import 1, water is through water under high pressure import 2, provide medicament by measuring pump 3, medicament, nitrogen, liquid water are mixed in foam maker 4, generate the aerated fluid of even density, and aerated fluid arrives required scene through foam outlet 5 and uses.In addition, this measure and control device also is provided with standby mouthful of a6 and standby mouthful of b7 is the standby use of measure and control device.
The inlet pressure of the nitrogen inlet temperature of measure and control device Real-Time Monitoring high pressure nitrogen, nitrogen inlet pressure, highly pressurised liquid, inlet temperature, foam outlet pressure, foam flow.According to the needs of actual condition, first set required foam density value, by regulating the numerical value of above-mentioned parameter, realize the adjusting of aerated fluid density is controlled.
The control system of measure and control device is selected built-in industrial control machine, is directly installed in the center-control case, is an independently computer control system.Utilize temperature pick up, pressure sensor, flow meter and other instrument, parameter value is transferred to central control system, and program parameter value is monitored.Can also realize automatic alarm and shutdown, comprise that overpressure alarm, density exceed standard to report to the police or leakage is reported to the police etc.The variation of above-mentioned parameter can be showed the form by curve simultaneously, more directly perceived.
As shown in Figure 2, high pressure nitrogen, highly pressurised liquid enter respectively foam maker 4, and gases at high pressure enter into gas-distribution pipe 9 from air inlet pipe 8, are provided with several spileholes on the tube wall of gas-distribution pipe 9.Simultaneously, highly pressurised liquid tangentially enters from feed tube 8, with gas-distribution pipe 9 gas out, fully mixes, and then enters into filler device 10.Filler device 10 is by one group of media assemblage, closely adjacent between filler, the adjacent interlaced one-tenth an angle of 90 degrees of two filler textures, and this structure design is fully cut the gas-liquid mixture produced.After having produced uniform and stable aerated fluid, by outlet 11, discharge.The supervisor of foam maker 4 is high voltage bearing alloy material, can install supervisor additional high pressure flange according to actual service condition, cleaning for convenience detach.
High pressure nitrogen foam generation measure and control device automatic controlling level of the present invention is high, for the association areas such as oil drilling, natural gas extraction provide the circulation of high pressure nitrogen foam, and can carry out Monitoring and Controlling to the density of aerated fluid, make measure and control device adapt to the demand of different operating modes.
Obviously, the above embodiment of the present invention is only for example of the present invention clearly is described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give all embodiments exhaustive.Every still row in protection scope of the present invention of apparent variation that technical scheme of the present invention extends out or change that belong to.
Claims (7)
1. high pressure nitrogen foam generation measure and control device, comprise foam maker, electric control box, pharmacy jar, it is characterized in that, pharmacy jar is connected with foam maker by pipeline, pharmacy jar and foam maker junction are equipped with flap valve, and described foam maker front end is provided with the high pressure nitrogen import, and the foam maker rear end is provided with foam outlet, described foam maker also is connected with the water under high pressure import by pipeline, and the front end of water under high pressure import is connected with the flow meter of controlling discharge.
2. high pressure nitrogen foam generation measure and control device according to claim 1, is characterized in that, described foam maker also is connected with dosing pump assembly, and described dosing pump assembly is connected with air inlet port by pipeline.
3. high pressure nitrogen foam generation measure and control device according to claim 1, is characterized in that, the high pressure nitrogen import department of foam maker front end setting is equipped with gas-distribution pipe.
4. high pressure nitrogen foam generation measure and control device according to claim 3, is characterized in that, described gas-distribution pipe is provided with joint ring.
5. high pressure nitrogen foam generation measure and control device according to claim 1, is characterized in that, described pharmacy jar is carried liquid by the feed tube be arranged in pipeline to foam maker.
6. high pressure nitrogen foam generation measure and control device according to claim 1, is characterized in that, the foam outlet place that the foam maker rear end arranges is equipped with the back-up ring structure.
7. high pressure nitrogen foam generation measure and control device according to claim 6, is characterized in that, the foam outlet place that the foam maker rear end arranges is equipped with filler device, and back-up ring is connected with filler device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104606980A CN103470235A (en) | 2013-10-08 | 2013-10-08 | High-pressure nitrogen foam generation measuring and control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013104606980A CN103470235A (en) | 2013-10-08 | 2013-10-08 | High-pressure nitrogen foam generation measuring and control device |
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| CN103470235A true CN103470235A (en) | 2013-12-25 |
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| CN2013104606980A Pending CN103470235A (en) | 2013-10-08 | 2013-10-08 | High-pressure nitrogen foam generation measuring and control device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672961A (en) * | 2014-11-20 | 2016-06-15 | 中国石油化工股份有限公司 | Integrated profile control technology of nitrogen foams during recovery of viscous oil reservoirs |
| CN105672962A (en) * | 2015-12-31 | 2016-06-15 | 中国石油天然气股份有限公司 | Air foam flow distribution device and method |
| CN107165608A (en) * | 2017-06-21 | 2017-09-15 | 南通市中京机械有限公司 | Fracture-pore reservoir foam system is configured and foamed system |
| CN107587865A (en) * | 2017-08-09 | 2018-01-16 | 胜利油田华滨实业有限公司石油机械滨州分公司 | A kind of foaming agent allocation process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672961A (en) * | 2014-11-20 | 2016-06-15 | 中国石油化工股份有限公司 | Integrated profile control technology of nitrogen foams during recovery of viscous oil reservoirs |
| CN105672961B (en) * | 2014-11-20 | 2019-12-17 | 中国石油化工股份有限公司 | integral profile control process for nitrogen foam in heavy oil reservoir exploitation process |
| CN105672962A (en) * | 2015-12-31 | 2016-06-15 | 中国石油天然气股份有限公司 | Air foam flow distribution device and method |
| CN105672962B (en) * | 2015-12-31 | 2018-08-10 | 中国石油天然气股份有限公司 | Air foam flow distribution device and method |
| CN107165608A (en) * | 2017-06-21 | 2017-09-15 | 南通市中京机械有限公司 | Fracture-pore reservoir foam system is configured and foamed system |
| CN107587865A (en) * | 2017-08-09 | 2018-01-16 | 胜利油田华滨实业有限公司石油机械滨州分公司 | A kind of foaming agent allocation process |
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Application publication date: 20131225 |