EP3310875A1 - Ethoxylierte desorptionsmittel zur erhöhten ölgewinnung - Google Patents

Ethoxylierte desorptionsmittel zur erhöhten ölgewinnung

Info

Publication number
EP3310875A1
EP3310875A1 EP16733337.6A EP16733337A EP3310875A1 EP 3310875 A1 EP3310875 A1 EP 3310875A1 EP 16733337 A EP16733337 A EP 16733337A EP 3310875 A1 EP3310875 A1 EP 3310875A1
Authority
EP
European Patent Office
Prior art keywords
formula
anionic
anionic surfactants
surfactants
use according
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Withdrawn
Application number
EP16733337.6A
Other languages
English (en)
French (fr)
Inventor
Mikel Morvan
Patrick MOREAU
René Tabary
Brigitte Bazin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IFP Energies Nouvelles IFPEN
Rhodia Operations SAS
Original Assignee
IFP Energies Nouvelles IFPEN
Rhodia Operations SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IFP Energies Nouvelles IFPEN, Rhodia Operations SAS filed Critical IFP Energies Nouvelles IFPEN
Publication of EP3310875A1 publication Critical patent/EP3310875A1/de
Withdrawn legal-status Critical Current

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
    • C09K8/584—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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • 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
    • C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes

Definitions

  • the present invention relates to the field of enhanced recovery of crude oil from underground formations, and more particularly to the problems of retention of surfactants in these subterranean formations during stages 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.
  • the surfactants usually recommended in this context are typically anionic surfactants, especially of the sulphate or sulphonate type. Although they are effectively effective in lowering the water / oil interfacial tension, these anionic surfactants have the disadvantage that they tend to remain trapped within the subterranean formations, typically due to chemical adsorption phenomena. the surface of the rocks, which significantly affects the efficiency of recovery and / or process costs.
  • the surfactants thus immobilized in the tank can no longer participate in the mobilization of oil and its extraction, and the efficiency of the extraction is therefore affected.
  • High adsorption can be offset by high surfactant concentrations but with cost implications. More generally, adsorption phenomena surfactants negatively impact the costs of extraction.
  • rock formations such as carbonates or clay rocks such as clayey sandstones (where the adsorption is high, even if water with high salt content and / or divalent ions) is avoided.
  • An object of the present invention is to provide an even more effective means of limiting or even eliminating the harmful effects of the retention of anionic surfactants, especially of the sulphate and / or sulphonate type, within oil reservoirs during stages. assisted oil recovery, especially in oil-bearing rocks of the carbonate or argillaceous rocks type.
  • the present invention proposes the use of at least one ethoxylated nonionic surfactant chosen from the following compounds of formula (I):
  • R is a hydrocarbon group comprising from 6 to 40, for example from 8 to 20 carbon atoms;
  • n is zero or is a non-zero number ranging from 0 to 20, integer or not, m denoting the average number of propylene oxide units -CH 2 -CH (-CH 3 ) O-;
  • n is a number greater than m and which is greater than 20, preferably greater than 25, n denoting the average number of ethylene oxide units -CH 2 -CH (-CH 3 ) -O-,
  • anionic surfactants used here in the plural refers both to a population of at least one surfactant, namely either several anionic surfactants of one and the same type, a mixture of several types of anionic surfactants).
  • the compounds of formula (I) mentioned above are agents which have the particularly advantageous property of desorbing anionic surfactants when they are injected in aqueous solution into rocks (oil reservoirs) where these anionic surfactants have been previously adsorbed.
  • the compounds of formula (I) can be qualified as desorbent agents for anionic surfactants.
  • the work of the inventors has now made it possible to demonstrate that this desorption effect is all the more clear as the compound of formula (I) is ethoxylated, that is to say all the more so as the value of n is high.
  • n is greater than 25, or more specifically greater than 30, or even more specifically greater than 40.
  • the value of n remains the highest. often less than 70 and generally does not need to exceed 60 or even 50.
  • the value of n is between 25 and 70, for example between 30 and 60 and can especially be between 40 and 50 when we try to ensure a particularly pronounced desorbent effect.
  • the compounds of formula (I) make it possible to desorb sulfate and / or sulphonate anionic surfactants in a particularly efficient manner from oil-bearing rocks, especially mixtures of primary surfactants of the olefin sulfonate or alkylarylsulphonate type and secondary alkyl ether sulphate or alkyl ether glyceryl sulfonate.
  • the compounds of formula (I) can desorb most of the anionic surfactants used for enhanced oil recovery, including anionic surfactants carboxylate type, phosphates and / or phosphonate.
  • anionic surfactant encompasses all surfactants carrying at least one anionic group under the conditions of the extraction carried out.
  • an anionic surfactant includes not only the above-mentioned sulfates and sulfonates, but also other types of surfactants, including zwitterionic surfactants.
  • the compounds of formula (I) are well suited to the desorption of purely anionic surfactants (ie carriers that do not carry positive charges). That being so, according to a specific embodiment, the compounds of formula (I) may optionally be employed to desorb zwitterionic compounds (alone or mixed with purely anionic surfactants).
  • the compounds of formula (I) may furthermore inhibit the retention effect of the anionic surfactants, especially of the abovementioned type, when they are introduced together with said anionic surfactants. In this sense, they can also be considered as anti-retention agents of anionic surfactants within oil-bearing rocks (oil reservoirs).
  • the compounds of formula (I) can in particular be used to avoid the retention of anionic surfactants both when they are used in the form of an extraction liquid and when they are under the form of a foam (obtained by injection of the anionic surfactant and the compound of formula (I) in an aqueous medium into the oil rock and then injection of a gas, typically according to the so-called "WAG" method).
  • the compounds of formula (I) are particularly suitable for improving the effect of the foam, avoiding retention phenomena in the rock.
  • This anti-retention effect in co-addition is in general also all the more marked that the value of n is high and can therefore typically be used, depending on the intensity of the desired effect, compounds (I) where n is in the abovementioned ranges, ie for example compounds in which n is greater than 25 or more specifically greater than 30 or even more specifically greater than 40, the value of n being typically less than 70, most often less than at 60, and typically at most 50.
  • the compounds of formula (I) make it possible to prevent the retention effect of the anionic surfactants, by limiting the amount of anionic surfactants that adsorb on the rock.
  • the compounds of formula (I) can also be described as sacrificial agents.
  • this preventive effect is most often all the more marked as the value of n is high and it is therefore typically possible to use, depending on the intensity of the effect sought, compounds (I) where n is in the aforementioned ranges, ie for example compounds where n is greater than 25 or more specifically greater than 30 or even more specifically greater than 40, the value of n being typically less than 70, most often less than 60, and typically at most 50.
  • the effects observed in the context of the present invention do not imply high concentrations of compound of formula (I).
  • the compounds of formula (I) are used - alone or in the form of a mixture of several nonionic surfactants of formula (I) - in aqueous fluids comprising these compounds at a concentration which does not have to exceed 5 g / l, and which may for example be between 0.1 and 4 g / l, preferably between 0.5 and 2 g / l.
  • the compounds of formula (I) that are useful according to the invention can at least in certain cases improve the solubility in water of anionic surfactants, in particular of the sulphate or sulphonate type.
  • the compounds of formula (I) make it possible to improve the injectivity of certain anionic surfactants, especially mixtures of primary surfactants of olefin sulfonate or alkylarylsulphonate type and secondary alkyl ether sulfate or sulfonate type, when they are added together with these surfactants.
  • the use of the compounds of formula (I), which are nonionic surfactants is such as to be able to improve the compatibility of anionic surfactants, especially of the sulphonate type, with other compounds which are used in EOR, such as for example, viscosity polymers such as partially hydrolysed polyacrylamides, for example, which constitutes yet another advantage of the compounds of formula (I).
  • the compounds of formula (I) are used in conjunction with at least one viscous polymer.
  • the effect of inhibition of retention phenomena of anionic surfactants or their desorption proves in general to be particularly interesting. Most often, an improved effect is observed in the presence of the additional polymer, or even a synergistic effect in certain cases (the effect of inhibition of the retention of surfactants on the rock is generally greater than the simple addition of the effect observed in the presence of a compound (I) without polymer and the effect observed in the presence of the polymer without the compound of formula (I)).
  • Such a synergistic effect is, for example, observed, in particular for surfactants or sulphate or sulphonate type formulations, by using additional polymers which are chosen from polyacrylamides, preferably partially hydrolysed.
  • the compounds of formula (I) can in particular be used in conjunction with viscosity polymers chosen from:
  • hydrophilic polymers including homo-, co-, or terpolymers such as, for example, polymers of the alkyl acrylate type, modified or otherwise, optionally carrying substituents such as 2-acrylamido acid groups; 2methyl propane sulfonic acid, ⁇ , ⁇ -dimethylacrylamide, vinylpyrrolidone, dimethylaminethyl methacrylate, acrylic acid, vinyl acetate, vinylsulfonic acid, or methacrylic acid.
  • biopolymers such as guars or xanthan gum, for example.
  • the group -R is a hydrocarbon group, linear or branched, saturated or introduced, possibly cyclized in whole or part (s). Although the presence of heteroatoms (N, P, or halogens) is not excluded, in the absolute, on this R group, it is most often a group which comprises only hydrogen atoms and of carbon.
  • the group -R preferably comprises at least 6 carbon atoms, more preferably at least 10 carbon atoms. This number of carbon atoms preferably remains lower than or equal to 30, preferably less than or equal to 20.
  • the group -R is a hydrocarbon group of the aforementioned type comprising of the order of 12 carbon atoms.
  • This group -R is linear or branched, and generally non-cyclic, although it may, according to some embodiments, possibly be cyclized in whole or in part.
  • the group -R is preferably a hydrocarbon group comprising only hydrogen and carbon atoms, for example chosen from alkyls, aryls, arylalkyls and alkylaryls. It can thus typically be a linear or branched alkyl or alkenyl group, then preferably having from 6 to 18 carbon atoms, more preferably from 10 to 16 carbon atoms.
  • R groups particularly well suited to the implementation of the invention there may be mentioned the linear alkyl groups hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl and pentadecyl, and groups 2 -éthylhexyle.
  • the group -R is a dodecyl group - (CH 2 ) i (CH 3 ).
  • the compounds of formula (I) employed in the context of the present invention preferably comprise, as group R, alkyl Ci 0 to C 8, for example a linear alkyl group of 5 to Ci 0. It may for example be a C12 alkyl (dodecyl) or C13 (tridecyl)
  • Compounds of formula (I) of interest include Rhodasurf LA / 300, Rhodasurf TDA50 or Rhodasurf E-20 marketed by Solvay.
  • the compounds of formula (I) above are used to inhibit the retention phenomena of anionic surfactants chosen from:
  • anionic agents of sulphonate and / or sulphate type mixtures of anionic surfactants comprising one or more sulphonate and / or sulfate anionic agents, these mixtures preferably not comprising any nonionic surfactants.
  • the compounds of formula (I) are used as desorbent agents for anionic surfactants.
  • the subject of the present invention is the processes for the enhanced recovery of petroleum from an underground formation, which make use of at least one of the aforementioned uses of the compounds of formula (I), the compound of formula (I) preferably being at least employed as a desorbent.
  • the subject of the present invention is in particular a method for the enhanced recovery of oil from an underground formation, in which:
  • a first fluid comprising at least one aqueous medium, an anionic surfactant, and optionally an additional anionic surfactant, called anionic co-surfactant (this first fluid being typically free of nonionic surfactant and may advantageously comprise a polymer, especially a partially hydrolysed polyamide); then
  • a second fluid comprising a compound of formula (I) of the aforementioned type is then injected by the same injection well (s);
  • At least one means of production is recovered, a fluid conveying the oil leaving the underground formation.
  • the subject of the present invention is a method of assisted oil recovery of an underground formation, in which:
  • At least one injection well is injected into said subterranean formation, a first fluid comprising at least one aqueous medium, a compound of formula (I) of the aforementioned type an anionic surfactant, and optionally an anionic co-surfactant (this fluid being typically free of nonionic surfactant other than compound I and may advantageously comprise a polymer, especially a partially hydrolyzed polyamide) and; then
  • the subject of the present invention is a method for the enhanced recovery of oil from an underground formation, in which:
  • At least one injection well is injected into said subterranean formation, a first fluid comprising a compound of formula (I) of the aforementioned type, and then
  • this second fluid comprising at least one aqueous medium, an anionic surfactant and optionally an anionic co-surfactant (this second fluid is typically free of nonionic surfactant and may advantageously comprise a polymer, in particular a partially hydrolysed polyamide); ;
  • At least one means of production is recovered, a fluid conveying the oil leaving the underground formation.
  • This example illustrates the effect of compounds of formula (I) on the inhibition of adsorption of an anionic surfactant formulation (mixture of sodium olefin sulfonate and sodium alkyl ether sulphate).
  • anionic surfactants used in this example was prepared in various brines namely:
  • This example illustrates the effect of compounds of formula (I) on the inhibition of the adsorption of an anionic surfactant formulation (mixture of sodium alkyl benzene sulphonate and sodium alkyl glyceryl ether sulphonate)
  • the anionic surfactant formulation used in this example was prepared in brine (S) containing 4000 ppm dissolved salts (2819 ppm NaCl, 300 ppm KCl, 237 ppm MgCl 2, 644 ppm CaCl 2).
  • the adsorption was measured by a conventional method on a crushed rock (Berea sandstone), with reference to the specific surface of the rock, determined by the BET method with Krypton.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Extraction Or Liquid Replacement (AREA)
EP16733337.6A 2015-06-18 2016-06-17 Ethoxylierte desorptionsmittel zur erhöhten ölgewinnung Withdrawn EP3310875A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1501273A FR3037595B1 (fr) 2015-06-18 2015-06-18 Agents desorbants ethoxyles pour la recuperation assistee du petrole
PCT/EP2016/063997 WO2016202975A1 (fr) 2015-06-18 2016-06-17 Agents desorbants ethoxyles pour la recuperation assistee du petrole

Publications (1)

Publication Number Publication Date
EP3310875A1 true EP3310875A1 (de) 2018-04-25

Family

ID=53794272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16733337.6A Withdrawn EP3310875A1 (de) 2015-06-18 2016-06-17 Ethoxylierte desorptionsmittel zur erhöhten ölgewinnung

Country Status (6)

Country Link
US (1) US10563116B2 (de)
EP (1) EP3310875A1 (de)
CA (1) CA2987218A1 (de)
FR (1) FR3037595B1 (de)
RU (1) RU2709261C2 (de)
WO (1) WO2016202975A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020127523A1 (en) * 2018-12-20 2020-06-25 Rhodia Operations Polyoxopolyamine desorbents for enhanced oil recovery
RU2764968C1 (ru) * 2020-09-10 2022-01-24 Общество с ограниченной ответственностью ООО "САНСОРС МИНЕРАЛС" Композиция и способ для обработки нефтяных пластов

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799264A (en) * 1972-12-13 1974-03-26 Texaco Inc Surfactant oil recovery process for use in formations containing high concentrations of polyvalent ions such as calcium or magnesium
US4276933A (en) * 1978-04-28 1981-07-07 Texaco Inc. Surfactant waterflood method for the recovery of oil
US4448697A (en) * 1982-01-22 1984-05-15 Texaco Inc. Secondary recovery process
CN1216660C (zh) * 1995-02-14 2005-08-31 联合泡沫技术公司 稳定的和防水的含水泡沫组合物
RU2394056C2 (ru) * 2008-03-04 2010-07-10 Государственное образовательное учреждение высшего профессионального образования Волгоградский государственный архитектурно-строительный университет (ВолгГАСУ) Полимерная композиция для антикоррозионной защиты
EP2274398B1 (de) * 2008-04-10 2016-01-27 Basf Se Neuartige tenside für die tertiäre erdölförderung auf basis von verzweigten alkoholen
AU2011240606B2 (en) * 2010-04-16 2013-07-18 Basf Se Guerbet alcohol alkoxylate surfactants and their use in enhanced oil recovery applications
EP2614944A1 (de) * 2012-01-16 2013-07-17 Bayer Intellectual Property GmbH Vorrichtung zum Auftragen eines aufschäumenden Reaktionsgemisches
FR2986008B1 (fr) * 2012-01-25 2015-02-20 Rhodia Operations Agents desorbants pour la recuperation assistee du petrole

Also Published As

Publication number Publication date
RU2018101696A (ru) 2019-07-18
RU2018101696A3 (de) 2019-07-24
RU2709261C2 (ru) 2019-12-17
US20180171212A1 (en) 2018-06-21
CA2987218A1 (fr) 2016-12-22
WO2016202975A1 (fr) 2016-12-22
US10563116B2 (en) 2020-02-18
FR3037595B1 (fr) 2017-06-23
FR3037595A1 (fr) 2016-12-23

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