WO2010068082A1 - Composición espumante para alta temperatura y salinidad - Google Patents
Composición espumante para alta temperatura y salinidad Download PDFInfo
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- WO2010068082A1 WO2010068082A1 PCT/MX2009/000106 MX2009000106W WO2010068082A1 WO 2010068082 A1 WO2010068082 A1 WO 2010068082A1 MX 2009000106 W MX2009000106 W MX 2009000106W WO 2010068082 A1 WO2010068082 A1 WO 2010068082A1
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- sodium
- amido
- foam
- propyl
- stability
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- 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
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- 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
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/02—Alkyl sulfonates or sulfuric acid ester salts derived from monohydric alcohols
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- 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
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/16—Amines or polyamines
-
- 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
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/22—Amides or hydrazides
-
- 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
Definitions
- the present invention is related to a foaming composition with improved stability that controls the gas channeling in naturally fractured carbonated deposits with conditions of high salinity and temperature, by means of the synergistic effect derived from the supramolecular interaction of sodium alpha olefin sulfonates with alkyl propyl amido betaines
- Foams are dispersions of gas in a small amount of a liquid and have a wide range of application at the industrial level.
- the use of foams has been extended to naturally fractured deposits and its main application has been to control the progress of gas in finished wells near the gas-oil contact and in improved recovery processes.
- the stability of the foam plays an extremely important role and this depends on the chemical structure of the surfactant that is used to generate it, in addition to the conditions of temperature, pressure and salinity that are present in the reservoir.
- the salinity is greater than 30,000 ppm of total solids and the concentration of divalent ions such as calcium and magnesium is greater than 2,000 ppm, the stability of the foam that generates this kind of chemical families of surfactants decreases drastically.
- US Patent 3,939,911 describes a three surfactant system applied to improved recovery processes in reservoirs with high temperature and whose formation water contains 200 to 14,000 ppm of dissolved polyvalent ions, such as calcium or magnesium.
- the three surfactant system is composed of: 1) A water-soluble salt of an alkyl or alkyl sulfonate, where the alkyl chain may have 5 to 25 carbon atoms, 2) A phosphate ester surfactant with an average molecular weight not exceeding 1000 AMU and 3) A sulfobetaine base surfactant of the structural formula (2) and where R is an alkyl group of 12 to 24 carbon atoms.
- the combination is stable until at least a temperature of 107 0 C and resistant to attack by bacteria and inhibits the formation of incrustations.
- US Patent 4,703,797 mentions an improved scanning method during improved hydrocarbon recovery processes.
- the method is to generate a foam by dispersing the displacement fluid in an aqueous solution containing a surfactant formulation.
- the surfactant formulation consists of a foaming lignosulfonates base and a foaming surfactant.
- foaming surfactants mention is made of the group consisting of anionic, non-ionic and amphoteric surfactants.
- US Patent 5,295,540 mentions a method based on foams to improve the production of hydrocarbons in underground formations and which consists of: 1) Injecting steam and fluids produced within the formation and 2)
- Inject a mixture of steam, a non-condensable gas and an aqueous mixture of surfactant and polysaccharides are linear toluene sulphonates, alkylaryl sulphonates, dialkylaryl sulphonates, alpha olefin sulfonates and dimerized alpha olefin sulfonates.
- US Patent 5,542,474 mentions a foam-based method for improving performance during the supply of steam or carbon dioxide in underground formations containing crude oil and which are constituted by at least one producing well and an injector well.
- the sweeping efficiency in the oil recovery process through steam supply is improved 5 by: 1) Injecting steam until it begins to appear in the producing well and 2) Subsequently adding a mixture of steam, gas to the formation non-condensable and an aqueous solution of a surfactant-polypeptide.
- the aqueous surfactant-polypeptide solution forms a stable foam with the oil of the formation at the reservoir conditions.
- the surfactants that are used as the foaming agent base are sodium and ammonium salts of sulfated ethoxylated alcohols, ethoxylated linear alcohols, linear toluene sulphonates.
- US 7,104,327 provides methods for fracturing underground areas of high temperature and foamed and viscous aqueous fracturing fluids for this purpose.
- the fracturing fluid of the invention comprises water, a terpolymer of 2- acrylamido-2-methylpropane sulfonic acid, acrylamide and acrylic acid or salts thereof, a gas, a foaming agent and a viscosity breaker to control and reduce the viscosity of the fracturing fluid
- the foaming agent in said invention is selected from the group consisting of
- alkyl amido propyl betaines with anionic surfactants.
- Sodium alkyl sulfate and sodium alkyl sulfate type has been studied in the literature (Langmuir 2000, 16, 1000-1013, Langmuir 2004, 20, 565-571, Langmuir 2004, 20, 5445-5453) and mainly indicated Ability of the alkyl amido propyl betaines to stabilize and improve the rheological properties (viscosity) of the foams generated by these anionic surfactants and which have application in shampoos and hair conditioners.
- a composition and process for recovering hydrocarbons consist of injecting an aqueous solution into a hydrocarbon-containing formation, through one or more injector wells, moving the solution within the formation and recovery of the hydrocarbon through one or more producing wells.
- the aqueous solution contains one or more amphoteric surfactants of the alkyl amido betaine type that form a viscoelastic surfactant gel that can reduce the interfacial tension and increase the viscosity of the injection fluid simultaneously in certain oils and brines.
- Viscoelastic gels are electrolyte tolerant and multivalent cations and are particularly useful within reservoirs that have medium to high temperature, high salinities, high concentrations of divalent ions and low porosity.
- the hydrocarbon recovery composition contains one or more amphoteric surfactants selected for their ability to lower the interfacial tension and increase the viscosity simultaneously, an aqueous medium, a secondary surfactant and optionally one or more polymers to provide viscosity residual.
- the patent application indicates that one of the amphoteric surfactants (4), that the secondary surfactant can be selected from the group of anionic, cationic or non-ionic and that the polymer that provides the residual viscosity is selected from the group of polyacrylamide, partially hydrolyzed polyacrylamide , xanthan gum, hydroxyethyl cellulose or guar gum.
- the patent application mentions that the combination of alkyl amido betaines with secondary surfactants of the linear type sodium dodecylbenzene sulfonate and arylalkyl xylene sulfonate reduces the interfacial tension and increases the viscosity of the system.
- alkyl amido betaine base amphoteric surfactants and their mixtures are used to generate foams, nor does it indicate that mixtures of alkyl amido betaines and anionic surfactants of the alpha olefin sulphonates type are used.
- supramolecular chemistry is the part of chemistry that is responsible for the study of systems that involve aggregates of molecules or ions that are linked through non-covalent interactions, such as electrostatic interactions, hydrogen bonds, Fl-interactions. FI, dispersion interactions and solvophobic effects.
- Supramolecular chemistry It can be divided into two large areas; 1) Hospedero-Guest Chemistry and 2) Self-assembly. The difference between these two large areas is a matter of size and shape; where there is no significant difference in size and none of the species acts as a host for the other, the non-covalent union between two or more species is called self-assembly.
- supramolecular interactions are much weaker than covalent interactions, which are located in the energy range of 150 to 450 Kj / mol for single bonds.
- the energy range of non-covalent interactions is located from 2 kj / mol for dispersion interactions up to 300 kj / mol for ion-ion interactions (Table 1) and the sum of several supramolecular interactions can give rise to highly stable supramolecular complexes.
- Computational chemistry is a tool widely used worldwide to predict the stability and structure of chemical systems with potential improved properties and has found application at the industrial level in the development of quantitative structure-activity relationship studies.
- computational methods of calculation that have been used for this purpose, find the methods of molecular mechanics, quantum methods, within which there are semi-empirical and ab initio methods, and methods of functional theory of density.
- foaming additives that apply the synergistic effect of sodium alpha olefin sulphonates and alkyl amido propyl betaines for the development of formulations that are capable of working in high salinity and temperature environments is not claimed in any of the references mentioned.
- the present invention has the advantage that the generated formulations work efficiently in environments of high salinity, temperature and a high concentration of divalent calcium and magnesium ions, in addition to the fact that the foam formed has a superior stability with respect to that generated by the products which are currently used worldwide.
- Figure 1 Scheme of the foam generation system that allows the stability of the foam to be evaluated at atmospheric pressure and up to 100 0 C.
- This system consists of the following elements: 1) gas tank (TG), 2) foam meter (ES) ), 3) flow meter (F), 4) thermal bath (BT), 5) Video camera (CV), 6) Image capture system (SCI), 7) Flow control valve (VCF), 8) Valve Three-way (VTV) and 9) Valve.
- Figure 19 Behavior of the stability of the foam at 1 kg / cm 2 and 75 0 C as a function of time, prepared with brine at 1% of formulation F.
- Figure 20 Stability of the foams at 1 kg / cm 2 and 75 0 C with respect to the time of the different chemical products (supramolecular complexes 9, formulation E and formulation F) at 1% by weight.
- Figure 22 Behavior of the stability of the foam at 1 kg / cm 2 and 75 0 C as a function of time, prepared with brine at 1% by weight of the formulation G.
- Figure 23 Stability of the foams at 1 kg / cm 2 and 75 0 C with respect to the time of the different chemical products (supramolecular complexes 9 and formulation G) at 1% by weight.
- Figure 26 Behavior of the stability of the foam at 100 kg / cm 2 and 95 0 C as a function of time, formed with brine at 1% by weight of the sodium dodec-2-in-1- sulfonate 10.
- Figure 27 Behavior of the stability of the foam at 100 kg / cm 2 and 95 0 C as a function of time, formed with brine at 1% by weight of the coco-amido-propyl betaine 11.
- Figure 28 Stability of the foams at 100 kg / cm 2 and 95 0 C with respect to the time of the different chemical products (supramolecular complexes 9, sodium dodec-2-en-1-sulfonate 10 and coco-amido-propyl betaine 11 ) at 1% by weight.
- Figure 30 Artificial longitudinal fracture used for the gas channeling control test.
- Figure 31 Diagram showing the foam in a longitudinal fracture, where it is observed that this foam supports a pressure difference of 10 psi after two weeks.
- the present invention is related to the synergistic effect derived from the supramolecular interaction of sodium alpha olefin sulfonates with alkyl amido propyl betaines and their application in the development of foaming formulations with improved stability that control the gas channeling in naturally fractured carbonated deposits with conditions High salinity and temperature.
- the supramolecular complexes developed from the interaction of sodium alpha olefin sulfonates with alkyl amido propyl betaines are tolerant under conditions of high temperature and / or pressure to the presence of divalent ions such as calcium and magnesium and have the property that when used in formulations generate stable foams at these conditions; surpassing Widely in performance as foaming agents to alpha olefin sulphonates or alkyl amido propyl betaines base compounds that are traditionally used as foaming agents in industrial-level formulations that have application in low temperature processes and in brines with low concentrations of divalent ions.
- the compounds of the type alpha olefin sulphonates can be used to generate foams at high temperatures and in brines with 30 concentrations of 30,000 and 120,000 ppm of total solids dissolved and whose concentrations of divalent ions vary between 2000 and 3800 ppm (Industrial & Engineer Chemistry Research 2004, 43, 4413-4421). Also, the stability The foam generated dramatically depends on the concentration of divalent ions, this is because thermodynamically the exchange of sodium ions is favored by calcium or magnesium ions and alpha olefin sulfonates of divalent ions are generated that are compounds that do not have foaming properties .
- alkyl amido propyl betaines have in their structure an amido group highly susceptible to interact supramolecularly with the allyl protons of the alpha olefin sulfonates and thereby significantly increase the stability of the supramolecular complexes that are generated.
- the liaison distances of 1,991 and 2,277 ⁇ for the H3A-O6 and H4A-O4 interactions show the presence of two strong hydrogen bonds, which together with the coordination bonds formed by the sodium atom are responsible of the formation of the supramolecular complex 3.
- the link distance of 2,490 ⁇ for the H11A-O3 interaction indicates the presence of a supramolecular interaction between the oleic protons of the alpha olefin sulfonates and the oxygen atom of the amido group of Ia alkyl amido propyl betaine.
- the atomic charge of Mulliken on the hydrogen atoms H3A and H4A of the supramolecular complex 3 is increased by 0.027 and 0.033 units, respectively, with respect to the charge that these atoms have on the alkyl amido propyl betaine 2 compound, while
- the atomic charge of Mulliken of the oxygen atom O4 undergoes an increase of 0.027 units and that of the oxygen atom 06 undergoes a decrease of 0.017 units, with respect to the alpha olefin sulfonate sulfonate compound 1.
- Tables 5, and 6 show the energy results and the distances of main bonds for compounds 4, 5 and the supramolecular complex 6.
- the supramolecular complexes derived from the present invention are obtained according to the synthesis procedure (7) and which consists of mixing at room temperature and atmospheric pressure alpha olefin sulfonates 7 with alkyl amido propyl betaines 8.
- the molar ratio in which Supramolecular complexes are formed from the interaction of the sodium alpha olefin sulfonates with the alkyl amido propyl betaines in the ranges of 1 to 2 or 2 to 1, with the 1 to 1 molar ratio being preferred.
- Table 6 Main link distances in compounds 4, 5 and in the supramolecular complex 6.
- the formation of supramolecular complexes from the mixture of sodium alpha olefin sulfonates with the alkyl amido propyl betaines can be carried out in water, alcohols or a water-alcohol mixture, with the aqueous medium being preferred.
- the final concentration by weight of the supramolecular complexes in the mixture can vary from 0.1% to 50%, preferably in the range of 20% to 50%.
- sodium alpha olefin sulfonates useful for the present invention are sodium but-2-in-1-sulfonate, sodium pent-2-in-1-sulphonate, hex-2-in-1 - sodium sulfonate, sodium hept-2-en-1-sulfonate, sodium oct-2-en-1- sulfonate, sodium non-2-en-1-sulphonate, dec-2-en- Sodium 1-sulphonate, sodium undec-2-en-1-sulphonate, sodium dodec-2-en-1-sulfonate, sodium tetradec-2-en-1-sulphonate, hexadec-2- en-1-sodium sulfonate and the mixture of two or more of these alpha olefin sodium sulfonates.
- Propyl betaine amido useful for the present invention are ethyl-amido-propyl-betaine, propyl-amido-propyl-betaine, butyl-amido-propyl-betaine, pentyl-amido-propyl-betaine, hexyl-amido -propyl-betaine, the heptyl-amido-propyl-betaine, the octyl-amido-propyl-betaine, the nonyl-amido-propyl-betaine, the decyl-amido-propyl-betaine, the undecyl-amido-propyl-betaine, The coco-amido-propyl betaine and mixtures of two or more of these alkyl amido propyl betaines.
- a comparison of the chemical shifts obtained in the 13 C nuclear magnetic resonance of the supramolecular complexes 9 with those obtained from the 13 C nuclear magnetic resonance spectra of the coco-amido-propyl betaine 11 and the dodec-2 -en-1- sodium sulfonate 10 shows the following: 1) in the 13 C spectrum of the supramolecular complexes 9 the main single signals for C8 and C1 carbonyls are observed at 175.9 and 169.3 ppm, while in the spectrum of 13 C of the coco-amido-propyl betaine 11 are observed in 175.8 and 168.8 ppm, 2) in the 13 C spectrum of the supramolecular complexes 9 the main simple signals for the C10 and C11 alkenyl carbons are observed in 138.1, 136.0 , 119.7 and 119.2 ppm, while in the 13 C spectrum of sodium dodec-2- in-1-sulphonate 10 are observed in 138.7, 136.6, 119.2 and 118.6
- the atmospheric pressure foam generation system was designed to evaluate the stability of the foams generated by surfactants at temperatures up to 100 0 C.
- the foam generation system ( Figure 1. Diagram of the foam generation system that allows the stability of the foam to be evaluated at atmospheric pressure and up to 100 0 C) consists of the following elements: 1) gas tank (TG) , 2) Foamometer (ES), 3) Flowmeter (F), 4) Thermal bath (BT), 5) Video camera (CV), 6) Image capture system (SCI), 7) Flow control valve ( VCF), 8) Three-way valve (VTV) and 9) Valve.
- the core device of the system is the glass foam tester, which consists of two concentric tubes.
- the outer tube is 1.35 m high with a diameter of 0.0762 m, inside it is installed a tube with a height of 1.15 m, with a diameter of 0.0508 m.
- the solution to be evaluated is loaded (brine plus surfactant) and the lance is placed with the sintered diffuser in its center (which can be made of glass or steel), through which the gas from the tank is injected, which is diffused in the liquid containing the surfactant through the disperser that is at its lower end.
- the gas flow regulator unit consists of three valves; one bypass, a flow control valve and a three-way valve, which are connected to a flow meter (maximum flow of 3 sfc / h) and the temperature control is done in the annular space through thermal bath of digital circulation.
- the stopwatch is stopped and the total time is recorded.
- the stability of the foam is defined as the variation of the initial height of the foam with respect to time ( Figure 3. Readings necessary for the calculation of foam stability) and is determined according to equation 1.
- Foam stability 100 - 100
- Ai (t) Foam height at each time t selected for measurement
- the stability of the foam generated by the supramolecular complexes 9 derived from the interaction of sodium dodec-2-in-1 -sulfonate 10 and coco-amido-propyl betaine 11 was evaluated through the Atmospheric Pressure Foaming Test, a a temperature of 75 0 C, using a brine containing 120,000 ppm of total solids, of which 5,323 ppm corresponded to divalent ions (Calcium and Magnesium), a concentration of supramolecular complexes 9 of 1% by weight and as nitrogen gas (N2 ). The time established to obtain each parameter (height of the foam and the liquid) was two minutes and the minimum percentage of foam stability that was recorded was 30%.
- Figure 4 (Behavior of the stability of the foam at 1 kg / cm 2 and 75 ° C as a function of the time prepared with brine at 1% by weight of the molecular complexes 9) shows the stability ratio of the foam obtained with supramolecular complexes 9 over time and it is observed that the minimum stability of 30% is reached in a time of 155 minutes.
- a formulation A was made consisting of 88% by weight of the supramolecular complexes 9.6% by weight of an anionic suriactant of the sodium 3-hydroxy-dodecyl sulphonate type 15 and 6% of the coco-amido -propyl betaine 11.
- formulation A The stability of formulation A was evaluated through the foaming test at atmospheric pressure, at a temperature of 75 0 C, using a brine containing 120,000 ppm of total solids, of which 5,323 ppm corresponded to divalent ions (Calcium and Magnesium), a concentration of 1% by weight of formulation A and as nitrogen gas (N 2 ).
- a formulation B was made consisting of 95.2% by weight of the supramolecular complexes 9 and 4.8% by weight of Poly (itaconic acid) 16 with a number average molecular weight of 1100 Daltons.
- the stability of the formulation B was evaluated through the foaming test at atmospheric pressure, at a temperature of 75 0 C, using a brine containing 120,000 ppm of total solids, of which 5,323 ppm corresponded to divalent ions (Calcium and Magnesium), a concentration of formulation B of 1% by weight and as nitrogen gas (N2).
- Example 9 In order to determine the effect of the addition of gels derived from poly (acrylamide) partially hydrolyzed on the stability of the foam generated from the supramolecular complexes 9 derived from the interaction of dodec-2-in-1-sulphonate of sodium 10 and coco-amido-propyl betaine 11, a formulation C was made consisting of 91% by weight of the supramolecular complexes 9.9% by weight of partially hydrolyzed Poly (acrylamide) 17.
- the stability of the formulation C was evaluated through the atmospheric pressure foaming test, at a temperature of 75 0 C, using a brine containing 120,000 ppm of total solids, of which 5,323 ppm corresponded to divalent ions (Calcium and Magnesium), a concentration of the formulation C of 1% by weight and as nitrogen gas (N2).
- a formulation D was made consisting of 87% by weight of supramolecular complexes 9, 8.7% by weight of partially hydrolyzed Poly (acrylamide) 17 and 4.3% by weight of poly (itaconic acid) 16.
- the stability of the formulation D was evaluated through Ia foaming test at atmospheric pressure, at a temperature of 75 0 C, using a brine containing 120,000 ppm of total solids, of which 5,323 ppm corresponded to divalent ions (Calcium and Magnesium), a concentration of the formulation D of 1% by weight and as nitrogen gas (N 2 ).
- the stability of the formulation F was evaluated through the foaming test at atmospheric pressure, at a temperature of 75 0 C, using a brine containing 38,000 ppm of total solids, of which 6800 ppm corresponded to divalent ions (Calcium and Magnesium), a concentration of the F formulation of 1% by weight and as methane gas (CH 4 ).
- formulation E was evaluated which consisted of 91% by weight of the supramolecular complexes 9, 4.5% by weight of a cationic surfactant of the dodecyl-trimethyl-ammonium chloride type 18 and 4.5% of the coconut -amido-propyl betaine 11.
- the stability of formulation E was evaluated at or through the foaming test at atmospheric pressure, at a temperature of
- the formulation F was evaluated which consisted of 87% by weight of the supramolecular complex 9, 4.4% by weight of dodecyl-trimethyl-ammonium chloride 18, 4.3% by weight of coco-amido-propyl betaine 11 and 4.3% by weight of Poly (itaconic acid) 16 with a number average molecular weight of 1100 Daltons.
- the stability of the formulation F was evaluated through the foaming test at atmospheric pressure, at a temperature of 75 0 C, using a brine containing 38,000 ppm of total solids, of which 6800 ppm corresponded to divalent ions (Calcium and Magnesium), a concentration of the formulation F of 1% by weight and as ethane gas (CH 3 CH 3 ).
- supramolecular complexes 9 were evaluated in a brine containing 38,000 ppm of total solids, of which 6800 ppm corresponded to divalent ions (Calcium and Magnesium ), a concentration of 1% by weight of the supramolecular complexes 9 and as nitrogen gas (N 2 ).
- a formulation G was made consisting of 50% by weight of the supramolecular complexes 9, 28% by weight of coco-amido-propyl betaine 11 and 22% by weight of a cationic surfactant of the type chloride dodecyl trimethyl ammonium 18.
- the stability of the formulation G was evaluated through Ia foaming test at atmospheric pressure, at a temperature of 75 0 C, using a brine containing 38,000 ppm total solids, of which 6800 ppm corresponded to divalent ions (Calcium and Magnesium), a concentration of the formulation G of 1% by weight and as nitrogen gas (N 2 ).
- the high pressure foam generation system consists of a PVT cell (Pressure, temperature, volume) adapted as shown in Figure 24 (PVT cell adapted and used for the stability test of foams at high pressure and temperature).
- PVT cell Pressure, temperature, volume
- the adapted PVT cell consists of a BPR valve whose purpose is to maintain the working pressure in the system and allow the injection of the fluids.
- a disperser was adapted through which the gas is injected, in this same part an inlet was adapted for the injection of the brine already formulated with the foaming agent.
- the foam is generated inside a sapphire tube, in this tube there is a piston that moves to allow the entry of fluids, the space between the piston and the BPR is filled with a mineral oil with which it is possible to control the height of the piston.
- the stability of the foam generated by the supramolecular complexes 9 derived from the interaction of sodium dodec-2-in-1 -sulfonate 10 and coco-amido-propyl betaine 11 was evaluated through the high pressure foaming test, at a temperature of 95 0 C, a pressure of 100 kg / cm 2 , using a brine containing 120,000 ppm of total solids, of which 5,323 ppm corresponded to divalent ions (Calcium and Magnesium), a concentration of supramolecular complexes 9 of 1 % by weight and as nitrogen gas (N 2 ).
- Figure 25 (Behavior of the stability of the foam at 100 kg / cm 2 and 95 0 C as a function of the time formed with brine at 1% by weight of the molecular complexes 9) shows the stability ratio of the foam obtained with the supramolecular complex 9 over time and it is observed that the minimum stability of 45% is achieved in a time of 72 hours (4320) minutes.
- a comparison between the time required for the atmospheric pressure foaming tests (example 4) and high pressure foaming tests (example 19) to increase the stability of the foam generated by the supramolecular complexes 9 to 45% indicates that the Increasing the pressure has a positive effect on the stability of the foam, and that the time required to decrease the% stability of the foam in the high pressure test is 681 times larger than what is required in the pressure test atmospheric
- the stability of the foam generated by the dodec-2-in-1 was determined -sodium sulphonate 10 and coco-amido-propyl betaine 11 under the same experimental conditions mentioned in example 19.
- Stability of the foams at 100 kg / cm 2 and 95 0 C with respect to the time of the different chemical products (supramolecular complexes 9 , dodec-2-en-1- sodium sulfonate 10 and coco-amido-propyl betaine 11) at 1% by weight) indicates that the foam generated by the supramolecular complexes 9 is 6.5 times more stable than that generated by the dodec- 2-in-1-sodium sulfonate 10 and 18 times more stable than that generated by coco-amido-propyl betaine 11;
- the advantage of using supramolecular complexes 9 derived from the interaction of sodium dodec-2-in-1- sulfonate 10 and coco-amido-propyl betaine 11 as foaming agents at high pressure, temperature is demonstrated in a novel way high and high concentration of total solids and divalent ions.
- An artificial fracture system consisting of 4 plugs with low permeability is cut longitudinally through the center, placed in series to form a composite medium with an artificial fracture (Figure 30. Artificial longitudinal fracture used for the gas channeling control test) .
- This system is placed in the core holder and installed in the experimental arrangement shown in Figure 31. Once installed, its permeability (40 mD) and porosity (3.67%) are determined experimentally.
- An overload pressure 300 psi higher than the displacement pressure
- the system is saturated with synthetic brine of the formation and leads to irreducible water conditions with oil. The system is left to age for two weeks at conditions of pressure and reservoir temperature.
- three cylinders are used: one that contains nitrogen (B1) and another that contains the brine (B2) dosed as the foaming agent and the cylinder that receives the formed foam (B3).
- BC1 pump Gas injection
- BC2 pump brine
- CE packed column
- the foam is injected into the fractured medium with the BC1 pump, before the fractured system a transparent capillary tube (TC1) is placed to visually verify the formed foam. After the invoiced system there is also a visual cell (TC2) to identify the stability of the foam once it has passed through the invoice system. Before and after the fractured system there are two pressure transducers. 4. Gas advance control.
- the capacity of the foam generated by the supramolecular complexes 9 derived from the interaction of sodium dodec-2-in-1 -sulfonate 10 and coco-amido-propyl betaine 11 to control the gas channeling in fractured systems at high pressure and temperature it was evaluated through Ia control test gas channeling, at a temperature of 95 0 C, a pressure of 100 kg / cm 2 using a brine containing 120,000 ppm of total solids, of which 5,323 ppm corresponded to ions divalent (Calcium and Magnesium), a concentration of supramolecular complexes 9 of 1% by weight and as nitrogen gas (N 2 ).
- the backflow gas pressure was such that it allowed a pressure difference of 10 psi to be reached and the system was allowed to stand for two weeks.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI0917766A BRPI0917766A2 (pt) | 2008-12-12 | 2009-10-05 | composiçao espumante para alta temperatura e salinidade |
| CN200980156613.1A CN102325586B (zh) | 2008-12-12 | 2009-10-05 | 用于高温和盐度条件的发泡组合物 |
| CA2746366A CA2746366C (en) | 2008-12-12 | 2009-10-05 | Foaming composition for high temperature and salinity |
| EP09832164.9A EP2374530B1 (en) | 2008-12-12 | 2009-10-05 | Use of a composition with foaming properties in oil recovery processes |
| US13/139,199 US8722588B2 (en) | 2008-12-12 | 2009-10-05 | Foaming composition for high temperature and salinity |
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| Application Number | Priority Date | Filing Date | Title |
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| MXMX/A/2008/015989 | 2008-12-12 | ||
| MX2008015989A MX2008015989A (es) | 2008-12-12 | 2008-12-12 | Composicion espumante para alta temperatura y salinidad. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2010068082A1 true WO2010068082A1 (es) | 2010-06-17 |
| WO2010068082A8 WO2010068082A8 (es) | 2011-04-14 |
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|---|---|---|---|
| PCT/MX2009/000106 Ceased WO2010068082A1 (es) | 2008-12-12 | 2009-10-05 | Composición espumante para alta temperatura y salinidad |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8722588B2 (es) |
| EP (1) | EP2374530B1 (es) |
| CN (1) | CN102325586B (es) |
| BR (1) | BRPI0917766A2 (es) |
| CA (1) | CA2746366C (es) |
| CO (1) | CO6400206A2 (es) |
| MX (1) | MX2008015989A (es) |
| WO (1) | WO2010068082A1 (es) |
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| WO2012101120A1 (fr) | 2011-01-27 | 2012-08-02 | Rhodia Operations | Agents moussants phosphorés stables à haute température |
| US8985206B2 (en) | 2011-05-13 | 2015-03-24 | Rhodia Operations | Enhanced foam stability applications and methods |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012101120A1 (fr) | 2011-01-27 | 2012-08-02 | Rhodia Operations | Agents moussants phosphorés stables à haute température |
| US8985206B2 (en) | 2011-05-13 | 2015-03-24 | Rhodia Operations | Enhanced foam stability applications and methods |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010068082A8 (es) | 2011-04-14 |
| BRPI0917766A2 (pt) | 2016-08-02 |
| US20110275546A1 (en) | 2011-11-10 |
| EP2374530A4 (en) | 2017-05-10 |
| EP2374530A8 (en) | 2011-12-14 |
| CO6400206A2 (es) | 2012-03-15 |
| CN102325586B (zh) | 2015-07-15 |
| CA2746366A1 (en) | 2010-06-17 |
| CA2746366C (en) | 2015-03-17 |
| US8722588B2 (en) | 2014-05-13 |
| EP2374530A1 (en) | 2011-10-12 |
| EP2374530B1 (en) | 2024-07-31 |
| CN102325586A (zh) | 2012-01-18 |
| MX2008015989A (es) | 2010-06-14 |
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