Claims
- 1. A method of simultaneously conveying through the same pipe both the liquid and gas components of a diphasic fluid of a gas/liquid volumetric ratio of at least 10% of gas, comprising separating from the diphasic fluid a liquid of reduced free gas content from a residual gas, said liquid comprising the liquid component of said diphasic fluid, carrying out the series of the following steps at least once, in order to obtain a new a diphasic fluid having a limited free gas content lower than a specified value, said series of the following steps comprising:
- (a) increasing the pressure of said liquid of reduced free gas content,
- (b) independently simultaneously increasing to the same value the pressure of the residual gas, and
- (c) producing a new diphasic fluid of redcuced free gas content by admixing said liquid of reduced free gas content with said residual gas; said new diphasic fluid being introduced into said conveying pipe and conveyed therethrough.
- 2. A method according to claim 1, wherein the pressure of said liquid of reduced free gas content and said residual gas being separated is not substantially reduced.
- 3. A method according to claim 1, comprising performing said step of increasing the pressure of said liquid of reduced free gas content with pumping means, wherein said new diphasic fluid has a limited free gas content at most equal to said specified value.
- 4. A method according to claim 3, further comprising increasing the pressure of said new fluid before its introduction into the pipe for conveying therethrough.
- 5. A device for simultaneously conveying through the same pipe both the liquid and gas components of a diphasic fluid of a gas/liquid volumetric ratio of at least 10% of gas, said device comprising:
- separating means for receiving a first diphasic fluid flow for separating the gas component from the liquid component of said first diphasic fluid without a substantial reduction in pressure, said separator having a first outlet orifice for delivering at least the entire amount of the liquid component of said first diphasic fluid and a second outlet or orifice for delivering at least a fraction of said gas component;
- first pumping means having an inlet orifice connected to said first orifice of said separating means for receiving said liquid component and for increasing the pressure thereof, second pumping means having an inlet orifice connected to said second orifice of said separating means for receiving said fraction of said gas component and for increasing the pressure thereof, and mixing means having inlet orifices respectively connected to said first pumping means and second pumping means for receiving and mixing said increased pressure liquid component and said increased pressure fraction of said gas component under substantially constant pressure conditions; and
- said mixing means comprising equalizing means for substantially equalizing, before mixing, the pressures of said fraction of said gas component and of said liquid component delivered to said mixing means, and control means for controlling the amount of mixed gas as a function of the amount of liquid, in relation to a specified value of the gas/liquid volumetric ratio which must be obtained.
- 6. A device according to claim 5, comprising a plurality of said processing means connected in series.
- 7. A device according to claim 5, wherein said first pumping means is adapted for increasing the pressure of diphasic fluids whose gas/liquid volumetric ratio is at most equal to a specified value, and wherein said separator is adapted for delivering through its first orifice a diphasic fluid whose gas/liquid volumetric ratio is at most equal to said specified value.
- 8. A device according to claim 7, wherein said separating means has said first and second orifices located for simultaneously delivering all the liquid component through said first orifice and substantially all the gas component of the processed diphasic fluid through its second orifice, and wherein said separating means comprises secondary mixing means connected between said first orifice and the inlet orifice of said first pumping means and connected to said second orifice for receiving simultaneously gas from said second orifice of said separator, said secondary mixing means adapted for producing a diphasic fluid whose gas/liquid volumetric ratio has a value at most equal to said specified value.
- 9. A device according to claim 5, wherein said second pumping means comprises fluid producing means for producing a secondary diphasic fluid by mixing said fraction of said gas component with an auxiliary liquid supplied thereto, third pumping means for pumping and increasing the pressure of the resulting secondary component diphasic fluid and a gas liquid separator for receiving the secondary diphasic fluid after its pressure has been increased.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of application Ser. No. 16,467 filed Mar. 1, 1979 now abandoned and it also relates to application Ser. No. 11,818 filed Feb. 13, 1979.
US Referenced Citations (6)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2105926 |
Oct 1971 |
DEX |
2134520 |
Dec 1972 |
FRX |
Continuation in Parts (1)
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Number |
Date |
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Parent |
16467 |
Mar 1979 |
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