EP3481912A1 - Stabilisation de mousses par des particules d'argile - Google Patents
Stabilisation de mousses par des particules d'argileInfo
- Publication number
- EP3481912A1 EP3481912A1 EP17734731.7A EP17734731A EP3481912A1 EP 3481912 A1 EP3481912 A1 EP 3481912A1 EP 17734731 A EP17734731 A EP 17734731A EP 3481912 A1 EP3481912 A1 EP 3481912A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- surfactant
- foaming composition
- foam
- mixture
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/594—Compositions used in combination with injected gas, e.g. CO2 orcarbonated gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/032—Inorganic additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/592—Compositions used in combination with generated heat, e.g. by steam injection
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/536—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning characterised by their form or by the form of their components, e.g. encapsulated material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/92—Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
- C09K8/94—Foams
Definitions
- the present invention relates to aqueous foams which are particularly useful for the enhanced recovery of crude oil in underground formations, and more particularly to foam stability problems in such cases of enhanced oil recovery.
- a fluid is injected (re-injection of the diluted or non-diluted produced water, injection of sea or river water, or injection of gas, for example) into the hydrocarbon reservoir, with a view to exerting a positive overpressure in the tank to drive the oil to the production well (s).
- a common technique in this context is the injection of water (also referred to as flooding or “waterflooding”), in which large volumes of water are injected under pressure into the reservoir via injection wells. The injected water causes some of the oil it meets and pushes it to one or more producing wells.
- thermal EOR methods of heating the oil to facilitate its flow have been developed, which advantageously implement foams.
- thermal EOR methods the so-called SAGD (Steam Assisted Gravity Drainage), CSS (for example: “Cyclic Steam Stimulation”, “Steam Flooding”, or even air injection methods, especially those of the LTO type (for the first time).
- the present invention relates to foams for use in these enhanced oil recovery methods, which are typically formed and used under relatively extreme conditions within underground formations (high temperature, pressure, pH, salinity, etc.).
- a problem encountered with these foams is that of their stability under these conditions.
- many surfactants tend to lysate under these conditions, especially under the effect of temperature and pH.
- An object of the present invention is to provide a method of forming foam improving stability.
- the present invention relates to a method of forming a stabilized foam comprising:
- ⁇ preferably a heat treatment step of the foam formed, which may be subsequently or simultaneously with said step of the foam forming expansion at a temperature higher than the temperature of thermolysis of said surfactant or surfactant mixture.
- the expansion fluid employed in the process of the invention contains water vapor, optionally mixed with a gas or mixture of gases such as nitrogen.
- the foam is referred to as "steam foam”.
- Other foams are nevertheless conceivable according to the invention, which are overrun by an expansion fluid containing no water vapor (air-based foam for example, or based on another gas).
- the expansion and heat treatment steps of the process of the invention can typically be carried out as part of a petroleum extraction operation, in particular enhanced oil recovery.
- the stabilized foam formed is used for hydrocarbon extraction, advantageously in an underground formation where the conditions of the thermolysis of said surfactant or surfactant mixture are combined.
- the process of the invention is typically conducted (i) by injecting the foaming composition into an underground formation where the temperature is between 30 to 350 ° C, and preferably at a temperature above the temperature of thermolysis of said surfactant or mixture of surfactants; and (ii):
- the method of the invention which specifically implements the clay particles, leads to the formation of a particular foam, gelled type.
- the aqueous foam formed during the expansion step can be described as a particular heterogeneous medium which comprises a plurality of gas bubbles contiguous to one another, separated from each other by liquid films, which are called lamellae, which are based on the foaming composition.
- the clay particles present within the lamellae are organized into a network and form a microstructure of the physical gel type which confers interesting rheological properties on the constituent fluid of the lamellae, typically that of a fluid with a threshold of flow which makes it possible to slow, or even to inhibit, the phenomena of drainage of water out of the lamellae and thus to increase the resistance of the foam to coalescence and to ripening.
- the heat treatment when carried out in the process of the invention (which is most often unavoidable in the case of a petroleum extraction), induces lysis of all or part of the surfactants which does not call into question the stabilization by clay particles.
- the process of the invention comprises a heat treatment which lyses all or part of the surfactants, it makes it possible to obtain a stabilized foam which has the advantage of containing a reduced amount of surfactants.
- This reduction of the surfactant content ("replaced” in some way in whole or in part by clay particles) has interesting repercussions: on the one hand, it allows, in a general way, to limit any potential "pollution" of the formations underground by tensiocatives, which is an advantage in terms of environmental impact; on the other hand, and more fundamentally, it leads to a reduction of the surfactant content in the water / hydrocarbon mixture extracted from the formation underground, which ultimately allows a better separation of the hydrocarbons contained in these mixtures. Indeed, the more the water / hydrocarbon mixture is rich in surfactants and the more this mixture is difficult to separate in view of the formation of an emulsion that is more stable as there are surfactants.
- the clay particles have the advantage of leading to an effective stabilization of the foam by their effect on the rheology, but not to a stabilization of water / hydrocarbon emulsions recovered in fine.
- the clay used in the context of the present invention is a synthetic or natural clay. It may for example be a bentonite, a hectorite or a montmorillonite. Advantageously it is a hectorite.
- the clays according to the invention may optionally be treated for example with quaternary ammonium compounds. Untreated clays can however also be used.
- the clay used according to the invention is a laponite, typically synthetic.
- laponite adapted to the invention reference may be made to Laponite XLG® available from Safic Alcan which is the subject of the examples given at the end of the present description.
- the clay is used in the compositions of the invention in the form of "particles", namely in the form of small scattered objects, typically less than one millimeter, and generally much lower.
- Clay particles consist of more elemental sheets or less aggregate whose state of aggregation can be measured in particular by transmission electron microscopy (Cryo MET) or by light scattering techniques which give access to the average hydrodynamic diameter of the particles in the foaming composition.
- the foaming composition employed according to the invention comprises at least 0.001%, typically at least 0.01%, for example at least 0.05% by weight relative to to the total mass of the foaming composition.
- interesting results are obtained in particular when the clay content is greater than 0.1%, for example at least 0.15% by weight relative to the total weight of the foaming composition.
- the more the amount of clay increases the more the stabilizing effect increases.
- the clays have a significant thickening character and that for most applications it is preferable to limit their content to avoid obtaining excessive viscosities.
- the clay content in the foaming composition remains less than or equal to 5%, and more preferably less than 1% or even 0.5% by weight relative to the total mass of the foam. Foaming composition, in particular for applications in the field of petroleum extraction.
- the foaming composition employed comprises the clay at a content between 0.01 and 1% by weight. mass relative to the total mass of the foaming composition, for example between 0.02 and 0.5%, especially between 0.05 and 0.2%.
- any surfactant or surfactant system suitable for forming a foam may be used according to the invention.
- the surfactants will be further selected to be able to be degraded in whole or in part after or during the formation of the foam.
- the mass ratio surfactant (s) / clay is preferably between 1 and 2000.
- the foaming composition preferably comprises from 0.005 to 5% of surfactants or of a surfactant mixture, preferably from 0.1 to 1% by weight relative to the total weight of the foaming composition.
- the surfactant or mixture of surfactants present in the foaming composition used according to the invention comprises a tensiaoctif of alkyl sulphate or alkyl ether sulphate type where the alkyl chain advantageously comprises from 8 to 18 carbon atoms, for example from 10 to 16, such as sodium laureth sulfate.
- a surfactant of this type is Rhodapex® ESB-70 / A2 available from the company Solvay illustrated in the examples given below.
- a surfactant of the alkyl sulphate or alkyl ether sulphate type may be employed at a level of 0.1 to 1% by weight relative to the total weight of the foaming composition.
- alkyl sulphate or alkyl ether sulphate are particularly interesting because they are both good foaming agents and they are generally quite thermally sensitive. Typically, by forming a foam from these agents at a temperature above 100 ° C., especially at 150 ° C., for example of the order of 200 ° C., the formation of the foam and the thermolysis according to US Pat. invention.
- Other interesting surfactants that degrade in the same temperature ranges are:
- alkyl ampho dipropionate s mixtures of two or more of these compounds and mixtures of these compounds with alkyl sulphates or alkyl ether sulphates.
- the surfactant or mixture of surfactants present in the foaming composition used according to the invention comprises a zwitterionic surfactant, in particular an alkylamidobetaine, an alkylamidohydroxysultaine, an alkylbetaine, or an alkylhydroxysultaine, in which the alkyl chain advantageously comprises 8 to 18 carbon atoms, such as cocoamidohydroxypropyl sultaine illustrated in the examples, which are quite thermally sensitive.
- mixtures of surfactants according to the invention in particular when it is desired to obtain a thermal degradation effect at a relatively low temperature (typically below 250 ° C., for example between 150 and 200 ° C.) with a good foaming effect, are the mixtures of alkyl ether sulphate and zwitterionic surfactants of the abovementioned type, in particular of the amido type; and mixtures of alkyl ether sulphate with alkyl poly glycoside.
- the surfactant or mixture of surfactants present in the foaming composition used according to the invention comprises an alkyl sulfonate tensiaoctif, in which the alkyl chain advantageously comprises from 8 to 18 carbon atoms, for example from 10 to 16, such as, for example, C14-16 alfa olefin sulfonate.
- the alkylsulfonates are preferably employed in admixture with alkyl sulfates.
- the invention relates to foaming compositions for implementing the process of the invention, comprising:
- At least one surfactant preferably degraded at a temperature of less than or equal to 250 ° C, more preferably less than or equal to 200 ° C, preferably of one of the abovementioned types;
- the stability was tested for foams made at 200 ° C. and 25 bar (2.5 ⁇ 10 6 Pa) from various foaming solutions including clay particles.
- the foaming solution brought to 200 ° C. and injected at the operating pressure via a high-pressure liquid pump with a constant flow rate of 3.2 ml / min; nitrogen brought to 200 ° C. and injected at the pressure of working via a high pressure gas pump with a constant flow rate of 4.8 mL / min
- the foam formed at the outlet of the sinter is injected into the bottle from above.
- a tube dipping into the bottle and opening at the bottom of it ensures an outlet of too much liquid from below.
- the tube which opens on one side at the bottom of the tube has been connected at its other end to a back pressure regulator, which keeps the pressure constant in the bottle.
- the gas used is nitrogen to avoid the artifacts associated with the vapor recondensation.
- a CCD camera allows the temporal acquisition of formed foam images observed through the transparent tube. The analysis of the images thus makes it possible to follow the evolution of the foam height as a function of time.
- the foam height increases and reaches a maximum (initial volume of foam) and the foam height decreases over time.
- the measured half-life time for the foams formed with each of the foaming compositions tested in the present example is the time at which the foam height is equal to half the initial foam height (the section of the tube being constant, this also corresponds to the time that the initial volume of foam to halve).
- foaming compositions tested include the following products: Surfactants:
- Rhodapex® ESB-70 / A2 alkyl ether sulfate - source: Solvay
- the surfactant is solubilized in demineralized water at a total mass concentration of 0.5% by weight of active material, then stirred for 24 hours at room temperature.
- compositions tested nature of the surfactant and content in the composition, in weight percentage relative to the total mass of the composition - clay content (Laponite XLG) in percentage by mass relative to the total mass of the composition) and the half-life time (ti / 2 ) measured for each of them.
- the surfactants employed are degraded by thermolysis, which is not the case with clays. Whatever the nature of the surfactants, the addition of clay improves the stability.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Detergent Compositions (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1656597A FR3053690B1 (fr) | 2016-07-08 | 2016-07-08 | Stabilisation de mousses par des particules d'argile |
PCT/EP2017/066474 WO2018007305A1 (fr) | 2016-07-08 | 2017-07-03 | Stabilisation de mousses par des particules d'argile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3481912A1 true EP3481912A1 (fr) | 2019-05-15 |
Family
ID=57539335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17734731.7A Withdrawn EP3481912A1 (fr) | 2016-07-08 | 2017-07-03 | Stabilisation de mousses par des particules d'argile |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3481912A1 (fr) |
CA (1) | CA3030057A1 (fr) |
FR (1) | FR3053690B1 (fr) |
WO (1) | WO2018007305A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115058238B (zh) * | 2022-06-20 | 2024-02-06 | 中国石油大学(华东) | 一种表面改性纳米颗粒高温泡沫稳定剂及其制备方法和应用 |
CN115011319B (zh) * | 2022-06-22 | 2023-07-14 | 中国地质大学(武汉) | 一种耐温耐盐驱油用三相泡沫体系及其制备方法与应用 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1155050B (de) * | 1959-06-17 | 1963-09-26 | Adicon Ltd | Verfahren zur Herstellung von Leichtmoertel oder Leichtbeton mittels eines Schaumbildners durch Begasung einer Zementmischung |
US6297295B1 (en) * | 1999-03-03 | 2001-10-02 | Mbt Holding Ag | Transport of solid particulates |
US20030228270A1 (en) * | 2002-06-10 | 2003-12-11 | Erika Tazberik | Foaming clay cleanser composition |
US20120220502A1 (en) * | 2011-02-24 | 2012-08-30 | Basf Se | Compositions comprising alkylalkoxysulfonates for the production of high temperature stable foams |
CA2827323A1 (fr) * | 2011-02-24 | 2012-08-30 | Basf Se | Compositions comprenant des alkyle alcoxy sulfonates pour la production de mousses stables a hautes temperatures |
US8997868B2 (en) * | 2012-06-21 | 2015-04-07 | Halliburton Energy Services, Inc. | Methods of using nanoparticle suspension aids in subterranean operations |
CN103694983B (zh) * | 2014-01-06 | 2016-08-17 | 中国石油大学(华东) | 一种泡沫驱油用粘土稳泡复合剂及其制备方法与应用 |
CN104119853B (zh) * | 2014-07-02 | 2017-03-29 | 成都理工大学 | 一种空气泡沫压裂液的制备方法 |
-
2016
- 2016-07-08 FR FR1656597A patent/FR3053690B1/fr not_active Expired - Fee Related
-
2017
- 2017-07-03 WO PCT/EP2017/066474 patent/WO2018007305A1/fr unknown
- 2017-07-03 EP EP17734731.7A patent/EP3481912A1/fr not_active Withdrawn
- 2017-07-03 CA CA3030057A patent/CA3030057A1/fr not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CA3030057A1 (fr) | 2018-01-11 |
FR3053690A1 (fr) | 2018-01-12 |
WO2018007305A1 (fr) | 2018-01-11 |
FR3053690B1 (fr) | 2019-12-06 |
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