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    • 专利摘要:
    composition and method for reducing hydrate agglomeration presents and claims a composition and method for inhibiting the formation of hydrate agglomerates in a fluid comprising water, gas and, optionally, liquid hydrocarbon comprising adding to the fluid an effective anti-caking amount of the following formula and, optionally, salts of this formula (i): where each r ~ 1 ~ is independently absent, c ~ 1 ~ -c ~ 10 ~ alkyl, benzyl or h; where r ~ 2 ~ is c ~ 1 ~ -c ~ 10 ~ alkyl; where r ~ 3 ~ is c ~ 1 ~ -c ~ 10 ~ alkyl; and where r ~ 4 ~ is c ~ 4 ~ -c ~ 22 ~ alkyl or alkenyl.
    公开号:BR112013015062B1
    申请号:R112013015062-9
    申请日:2011-12-14
    公开日:2020-03-10
    发明作者:Peter A. Webber
    申请人:Nalco Company；
    IPC主号:
    专利说明:

    "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION AND METHOD TO REDUCE HYDRATE AGGLOMERATION" APPLICATION FIELD
    [0001] The present patent application relates generally to the reduction or inhibition of the formation and growth of hydrate particles in fluids containing hydrocarbon gas and water. More specifically, the present application for a patent relates to the reduction or inhibition of such formation in the production and transportation of natural gas, petroleum gas or other gases. The present application for a patent has particular relevance in the treatment of systems with beta-amino ester surfactants as anti-caking agents to reduce or inhibit the formation of gas hydrates.
    TECHNICAL STATUS
    [0002] Since Hammerschmidt discovered in 1934 that gas hydrates could block gas pipelines, research to prevent hydrate formation and agglomeration has become an important issue. Gas hydrates can easily form during the transportation of oil and gas in pipelines when the appropriate conditions are present. The water content, low temperatures and high pressure are necessary for the formation of gas hydrates. The formation of gas hydrates usually results in the loss of oil production, damage to the piping and safety risks to field workers. Modern oil and gas technologies normally operate under strict conditions during the course of oil recovery and production; for example, high pumping speed, high pressure in the pipes, extended pipe length and low temperature of the oil and gas flowing through the pipes. These conditions are especially favorable for the formation of gas hydrates, which can be particularly dangerous for oil production on the high seas or for places with a cold climate.
    [0003] Gas hydrates are ice-like solids that are formed from small non-polar molecules and water at low temperatures and high pressures. Under these conditions, water molecules can form cage-like structures around these small non-polar molecules (usually dissolved gases such as carbon dioxide, hydrogen sulphide, methane, ethane, propane, butane and iso-butane), creating a type host-guest interaction also known as clathrate or hydrate. The specific architecture of this cage structure can be one of several types (called type 1, type 2, type H), depending on the identity of the guest's molecules. However, once formed, these crystalline cage structures tend to settle into the solution and accumulate in large solid masses that can travel through oil and gas transport pipes and potentially clog or damage related pipes and / or equipment. Damage resulting from clogging can be very expensive from the point of view of equipment repair, as well as loss of production and ultimately the resulting environmental impact.
    [0004] The industry uses a number of methods to prevent such blockages as thermodynamic hydrate inhibitors (THI), anti-caking agents (AA) and kinetic hydrate inhibitors (KHI). The amount of chemicals needed to prevent clogging varies widely depending on the type of inhibitor used. Thermodynamic hydrate inhibitors are substances that can reduce the temperature at which hydrates form at a given pressure and water content and are normally used in very high concentrations (regularly closed at 50% based on water content - glycol is widely used in high amounts of 100% of the weight of the water produced). Therefore, there is a substantial cost associated with transporting and storing large quantities of these solvents.
    [0005] A more cost-effective alternative is the use of LDHIs, as it generally requires less than 2% of dose to inhibit nucleation or the growth of gas hydrates. There are two general types of LDHIs, kinetic hydrate inhibitors (KHIs) and anti-caking agents (AAs), both of which are normally used in much lower concentrations (0.3-0.5% active concentration). KHIs act by slowing the growth of gas hydrate crystals and as core antiforms. AAs allow hydrates to form, but prevent them from clumping and subsequently accumulating into larger masses capable of causing buffers. An AA allows the formation of gas hydrates, but in the form of mud fluid dispersed in the liquid hydrocarbon phase. In general, the percentage of water must be below 50%, otherwise the mud will become too viscous to be transported.
    [0006] There is, therefore, a continuing need for new and effective methods of inhibiting the formation of hydrate clusters, especially those that are capable of acting on higher water cuts.
    SUMMARY
    [0007] Accordingly, the present patent application concerns anti-caking compositions as well as methods for inhibiting the formation of hydrate agglomerates in an aqueous medium comprising water, gas and, optionally, liquid hydrocarbon.
    [0008] In one aspect, the present patent application concerns the synthesis and use of beta-amino ester surfactants as anti-caking agents. Such surfactants comprise 3- (dialkylamino) -1-propylamine as the hydrophilic portion of the molecule and a fatty alkyl group as the hydrophobic portion of the molecule. Such anti-caking agents provide a composition comprising the following formula and, optionally, salts thereof.
    [000 9] Each Ri is independently Ci-C10 alkyl, benzyl or H. In one configuration, at least one Ri is absent. R2 and R3 are independently C1-C10 alkyl. R4 is C4-C22 alkyl or alkenyl.
    [0010] In one configuration, a counterion is present when Ri is present in quaternary or cationic nitrogen.
    [0011] In another aspect, the present patent application provides a method for inhibiting the formation of hydrate agglomerates in an aqueous medium comprising water, gas, and, optionally, liquid hydrocarbon comprising adding an effective amount of anti-caking agent to the aqueous medium. of a composition comprising the above formula and, optionally, salts thereof.
    [0012] In one configuration, a counterion is present when Ri is present in quaternary or cationic nitrogen.
    [0013] It is an advantage of the present patent application to provide anti-caking compositions useful for the prevention of hydrate buffers in oil-producing tubes.
    [0014] Another advantage of the present patent application is to provide anti-caking compositions that do not adversely affect the quality of sea water.
    [0015] An additional advantage of the present patent application is to provide anti-caking compositions that are capable of being routed in underwater umbilical tubes.
    [0016] The aforementioned outlines in general terms the characteristics and technical advantages of the present patent application so that the detailed description of the present patent application below can be better understood. Additional features and advantages of the present patent application which form the subject of the claims of the present patent application will now be described. It should be recognized by those skilled in the art that the specific concept and configurations disclosed can be immediately used as a basis for modifying or designing other configurations to accomplish the same purposes as the present application for an invention patent. It should also be noted by those with experience in the art that such equivalent configurations do not deviate from the essence and scope of the present invention patent application as set out in the appended claims. DETAILED DESCRIPTION
    [0017] The compositions of the present application comprise a generic formula and, optionally, salts thereof as shown below.
    [0018] In one configuration, at least one Ri is absent. In another configuration, each R1 is independently C1-C10 alkyl, benzyl or H. R2 and R3 are independently C1-C10 alkyl. R4 is C4-C22 alkyl or alkenyl. In one configuration, a contraion is present when Ri is present in quaternary or cationic nitrogen. The presence of Ri, although not necessary, generally improves the properties of the composition in terms of anti-agglomeration and water quality. In addition, it is believed that the presence of the ester group in the generic structure may enable improved biodegradation profiles.
    [0019] "Alkenyl" means a monovalent group derived from a straight, branched or cyclic hydrocarbon containing at least one carbon-carbon double bond by removing a single hydrogen atom from each of the two adjacent carbon atoms in an alkyl group. Representative alkenyl groups include, for example, ethylenyl, propenyl, butenyl, 1-methyl-2-buten-1-yl, and the like.
    [0020] "Alkyl" refers to a monovalent group derived by the removal of a single hydrogen atom from a straight or branched cyclic saturated or unsaturated hydrocarbon. Representative alkyl groups include methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl and decyl.
    [0021] "Contraion" refers to a halide selected from fluoride, chloride, bromide, iodide or carboxylate selected from a reaction with mineral acid, acrylic acid, acetic acid, methacrylic acid, glycolic acid, thioglycolic acid, propionic acid , butyric acid, the like, and any combination of these.
    [0022] In one configuration, the composition comprises the following formula and, optionally, salts thereof: [0023] In another configuration, the composition comprises the following formula and, optionally, salts thereof: [0024] In another configuration, the The composition comprises the following formula and, optionally, salts thereof: [0025] In another configuration, the composition comprises the following formula and, optionally, salts thereof: [0026] In another configuration, the composition comprises the following formula and, optionally, salts thereof: [0027] Various synthesis methodologies, which can be recognized by someone with common experience in the technique, can be used to make the claimed compositions.
    [0028] The compositions of this application may contain one or more additional compounds. Various formulations can be recognized by someone with common experience in the technique and can be made without undue experimentation.
    [0029] In one embodiment, the composition further comprises at least one additional hydrate inhibitor. Exemplary hydrate inhibitors are filed in States Patent Application, Serial No. 12 / 253,504, "Method of Controlling Gas Hydrates in Fluid Systems," filed on October 17, 2008, 12 / 253,529, "Method of Controlling Gas Hydrates in Fluid Systems, "filed on October 17, 2008, 12 / 400,428," Compositions and Methods for Inhibiting the Agglomeration of Hydrates in a Process, "filed on March 9, 2009, all currently pending.
    [0030] In another embodiment, the composition further comprises one or more thermodynamic hydrate inhibitors, one or more kinetic hydrate inhibitors, one or more anti-caking agents or a combination thereof.
    [0031] In another embodiment, the composition further comprises one or more asphaltene inhibitors, paraffin inhibitors, corrosion inhibitors, scale inhibitors, emulsifiers, water decanters, dispersants, emulsion separators or a combination thereof.
    [0032] In another configuration, the composition further comprises one or more polar or non-polar solvents or a mixture of these.
    [0033] In another configuration, the composition further comprises one or more solvents selected from isopropanol, methanol, ethanol, 2-ethylhexanol, heavy aromatic naphtha, toluene, ethylene glycol, ethylene glycol monobutyl ether (EGMBE), diethylene glycol monoethyl ether, xylene or a combination of these.
    [0034] The composition is introduced into the fluid by any suitable means to ensure dispersion of the inhibitor through the fluid under treatment. Typically, the inhibitor is injected using mechanical equipment such as chemical injection pumps, iron T, injection adapters and the like. The inhibitor mixture can be injected as prepared or formulated in one or more additional polar or non-polar solvents depending on the application and needs.
    [0035] Representative polar solvents suitable for formulation with the inhibitor composition include water, brine, seawater, alcohols (including straight or branched aliphatic compounds such as methanol, ethanol, propanol, isopropanol, butanol, 2-ethylhexanol, hexanol , octanol, decanol, 2-25 butoxyethanol, etc.), glycols and derivatives (ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, ethylene glycol monobutyl ether, etc.), ketones (cyclohexanone, diisobutyl ketone) , N-methylpyrrolidinone (NMP), N, N-dimethylformamide and the like.
    Representatives of non-polar solvents suitable for formulation with the inhibitor composition include aliphatic compounds such as pentane, hexane, cyclohexane, methylcyclohexane, heptane, decane, dodecane, diesel and the like; aromatic compounds such as toluene, xylene, heavy aromatic naphtha, derivatives of fatty acids (acids, esters, amides) and the like.
    [0037] In embodiments of the present application, the disclosed composition is used in a method of inhibiting the formation of hydrate agglomerates in an aqueous medium comprising water, gas and, optionally, liquid hydrocarbon. The method comprises adding an effective amount of anti-caking agent to the aqueous medium of the disclosed composition.
    [0038] The composition and method of this patent application are effective for controlling the formation of gas hydrates and buffering in the production of hydrocarbons and in transport systems. To ensure effective hydrate inhibition, the inhibitor composition must be injected before substantial hydrate formation. A preferred injection point for oil production operations is at the bottom of the well next to the surface controlled underwater safety valve. This ensures that during a closure, the product can be dispersed throughout the area of occurrence of hydrates. The treatment can also occur in other areas in the flow line, taking into account the density of the injected fluid. If the injection point is well above the hydrate formation depth, the hydrate inhibitor must be formulated with a solvent with a density high enough for the inhibitor to sink into the flow line and accumulate at the water / oil interface. In addition, the treatment can also be used for pipes or any part of the system where there is a potential for the formation of hydrates.
    [0039] In the configurations, the composition is applied to an aqueous medium that contains various levels of salinity. In one configuration, the fluid has a salinity of 1% to 25% by weight / weight (w / w) of total dissolved solids (TDS). The aqueous medium in which the disclosed compositions and / or formulations are applied can be contained in many different types of apparatus, especially those which transport an aqueous medium from one point to another.
    [0040] In the configurations, the aqueous medium is contained in an oil and gas pipeline. In other configurations, the aqueous medium is contained in refineries, such as separation tanks, dehydration units, gas and oil pipelines.
    [0041] In the settings, the composition is applied to an aqueous medium that contains various levels of water percentage. Someone with ordinary experience in the technique would interpret the percentage of water as the% water in a composition containing a mixture of oil and water. In one configuration, the water percentage ranges from 1 to 80% w / w of total dissolved solids.
    [0042] The compositions of the present disclosure and / or their formulations can be applied to an aqueous medium in several ways that would be recognized by someone with common experience in the technique. Someone with common experience in the technique would recognize these techniques and the various locations to which the compositions or compounds can be applied.
    [0043] In one configuration, compositions and / or formulations are pumped into the oil / gas pipeline using an umbilical cable. In another configuration, capillary column injection systems can be used to route the compositions and / or formulations of the present patent application, in this case anti-caking agents. US patent No. 7,311,144 provides a description of an apparatus and methods related to capillary injection.
    [0044] Various dosage amounts of a composition and / or formulation can be applied to the aqueous medium to inhibit the formation of hydrate agglomerates. Someone with ordinary experience in the technique would be able to calculate the amount of anti-caking agent for a given situation without undue experimentation. Factors that could be considered important in such calculations include, for example, the content of the aqueous medium, the percentage of water, the API gravity of the hydrocarbon and the composition of the test gas.
    [0045] In one configuration, the dose range for the hydrate inhibitor that is applied to an aqueous medium is between approximately 0.1% by volume and approximately 3% by volume based on the percentage of water. In another configuration, the dose range varies from approximately 0.25% by volume to approximately 1.5% by volume based on the percentage of water.
    [0046] The methodologies described in the present patent application can be used with other compositions that are proportional to the scope of this disclosure. Other compounds used to inhibit the formation of binders in fluids, which are outside the specific generic formula described above, but are proportional to the scope of the generic formula of the claimed compositions, can be used if the conditions of the system allow the compositions to inhibit the formation of binders (hydrate clusters). This protocol can be obtained without undue experimentation, specifically, for example, the oscillation test described below can be used when determining whether a compound works or not.
    [0047] The aforementioned can be better understood with reference to the following examples, which are intended for illustrative purposes and are not intended to limit the scope of the present application for an invention patent. Example 1 [0048] This example illustrates a configuration of the composition of the present patent application. A representative synthetic procedure for 2-ethylhexyl 3- (3- (dimethylamino) propylamino) propionate is described.
    [0049] To a 500-mL round-bottom flask with 3 necks, 50.0 g (0.49 mol) of 3- (dimethylamino) -1-propylamine and a magnetic stir bar were added. The flask was equipped with a thermocouple, a reflux condenser and an additional funnel containing 90.2 g (0.49 mol) of 2-ethylhexylacrylate. Acrylate was added to the moving amine in three applications of equal volume. Once the addition was complete, the reaction mixture was heated to 100 ° C for 5 hours. The final product was a light yellow liquid at room temperature. The complete conversion is evident by the disappearance of the initial diamine material by TLC (1/5 CHCl3 / MeOH with 0.5% v / v NH4OH).
    Example 2 [0050] This example illustrates a configuration of the composition of the present patent application. A representative synthetic procedure for N- (3- (butyl (3- (2-ethylhexyloxy) -3-10 oxopropyl) amino) propyl) -N, N-dimethylbutan-1-aminium chloride is described.
    [0051] To a sealed tube with 220 mL of volume capacity, 25.0 g (87.3 mmol) of 2-ethylhexyl 3- (3- (dimethylamino) propylamino) propianate, 16.2 g (174.6 mmol) of 1-chlorobutane, 8.27 g of 2-propanol and a magnetic stir bar. The tube was well sealed and heated in a silicone oil bath for 21 hours at 130 ° C. The complete conversion is evident by the disappearance of the initial diamine material by TLC (1/5 CHCla / MeOH with 0.5% v / v NH4OH).
    Example 3 [0052] This example illustrates a configuration of the composition of the present application. A representative synthetic procedure for 2-ethylhexyl 3- (3- (dibutylamino) propylamino) propianate is described.
    [0053] To a 500-mL round-bottom flask with 3 necks, 50.0 g (0.27 .mol) 3- (dibutylamino) -1-propylamine and a magnetic stir bar were added. The flask was equipped with a thermocouple, a reflux condenser and an additional funnel containing 49.4 g (0.27 mol) of 2-ethylhexylacrylate. Acrylate was added to the moving amine in three applications of equal volume. Once the addition was complete, the reaction mixture was heated to 100 ° C for 5 hours. The final product was a light yellow liquid at room temperature. The complete conversion is evident by the disappearance of the initial diamine material by TLC (1/5 CHCl3 / MeOH with 0.5% v / v NH4OH).
    Example 4 [0054] This example illustrates a configuration of the composition of the present patent application. A representative synthetic procedure for N-butyl-N- (3- (3- (2-ethylhexyloxy) -3-oxopro-pilamino) propyl) butan-1-aminium acetate is described.
    [0055] To a 500-mL round-bottom flask with 3 necks, 99.4 g of 2-ethylhexyl 3- (3- (dibutylamino) propylamino) propianate and a magnetic stir bar were added. The flask was equipped with a thermocouple, a reflux condenser and an additional funnel containing 16.1 g (0.27 mol) of acetic acid. Acetic acid was added at room temperature slowly over 10 minutes. Once the addition was complete, the reaction mixture was stirred for 2 hours at room temperature. The final product was a thick, orange liquid at room temperature.
    [0056] The structures in table 1 are, for example, the quaternization products of the reaction of 1-bromobutane with the adduct formed from the addition of 2-ethylhexylacrylate to (3-dimethylamino) -1-propylamine or the products of quaternization of the reaction of 1-chlorobutane with the adduct formed from the addition of 2-ethylhexylacrylate available on the market to (3-dimethylamino) -1-propylamine. All of the quaternary ammonium species are soluble in 2-propanol (IPA), methanol, ethylene glycol (MEG), ethylene glycol monobutyl ether (EGMBE) and their combinations. For variables in Structures 1 to 18 in Table 1, see the general formula below.
    Example 4 [0057] Certain structures from 1 to 18 were dissolved in 40% w / w for the anti-agglomeration test (Table 2). The oscillation cell test is the primary test for evaluating the performance of an anti-caking compound. The compounds were evaluated based on their ability to effectively minimize the particle size of the hydrate agglomerate and then disperse these particles in the hydrocarbon phase. Chemical performance was assessed by determining the percentage of maximum treatable water (water / oil ratio) and the minimum chemical dosage to register an approval in the oscillation cell test.
    [0058] The oscillation cell had two parts, a collector and a structure. The collector was made of welded stainless steel parts and had three rods. The inlet rod was used to carry the gas into the cell. The outlet rod was used to release the gas from the cell. The third rod was connected to a transducer that measured the pressure inside the cell. The cell structure had three layers. The outer layer was a polycarbonate tube whose thickness was 0.7 cm. The middle layer was made of stainless steel and was connected to the collector. The inner layer was a high-pressure sapphire tube with an outer diameter of 2.8 cm, an inner diameter of 1.85 cm and a length of 5 cm. This sapphire tube had a nominal capacity of up to 3,000 psi. A 1.6 cm diameter stainless steel sphere was located inside the sapphire tube to induce turbulence and mix fluids during the oscillation process.
    [0059] The test fluids contained three components. For this anti-agglomerate test, a correct amount of warm Magnolia oil was injected into the cell. Then, a solution of 7% by weight of NaCl and Dl water was injected with the exact amount according to the percentage of the aqueous phase. The anti-agglomerate of the tested patent application was the final component injected into the cell. The dosage of the compound was based on the volume of the aqueous phase. The test was set at 21 ° C as an initial condition. Each cell was filled with Green Canyon gas and pressurized to 2,100 psi. AH cells were oscillated for at least 1.5 to 2 hours until the fluid was saturated and the pressure stabilized. The temperature was reduced to an attachment point of 4 ° C. The cells were oscillated for 16 hours, kept static for 6 hours and oscillated again for 2 hours. Pressure data were recorded at these times. Observations were recorded every two or three hours, before the oscillation was interrupted and also immediately after being restarted. Comparative examples are described in United States Patent Application Serial No. 12 / 396,076, "Compositions Containing Amide Surfactants and Methods for Inhibiting the Formation of Hydrate Agglomerates," filed on March 2, 2009, currently pending. The results are shown in Table 2.
    Table 2 [0060] It is possible to see in Table 2 that the compositions of the present patent application provide not only an increase in chemical performance in the oscillation cell test, but a significant increase in the quality of sea water. The compositions of the present application (which are surfactants) have a tendency to stabilize the emulsion at the oil / water interface. These compositions have also been shown in laboratory bottle testing experiments to result in improved water quality and rapid destabilization of emulsions compared to Comparative Examples A and B (Table 2).
    [0061] All compositions and methods disclosed and claimed in this document can be made and executed without undue experimentation in the light of this disclosure. Although this patent application can be configured in several different ways, preferred configurations specific to the present patent application are described in detail in this document. The present disclosure is an example of the principles of the present patent application and is not intended to limit the present patent application to the configurations illustrated in particular. In addition, unless expressly defined otherwise, the use of the term "one / one" is intended to include "at least one" or "one or more." For example, "a device" is intended to include "at least one device" or "one or more devices".
    [0062] Any ranges reported in absolute terms or in approximate terms are intended to cover both, and any definitions used in this document are intended to be enlightening and not limiting. Notwithstanding the fact that the numerical ranges and parameters that establish the broad scope of the present application for an invention patent are approximations, the numerical values established in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective test measurements. In addition, all ranges disclosed in this document are to be understood as comprising any and all sub-ranges (including all fractional and integer values) included therein.
    [0063] In addition, the present application for a patent covers any and all possible combinations of some or all of the configurations described in this document. Any and all patents, patent applications, scientific articles and other references cited in this application, as well as any references cited therein, are hereby incorporated by reference in their entirety. It should also be understood that various changes and modifications to the currently preferred configurations described in this document will become apparent to those with experience in the art. Such changes and modifications can be made without departing from the essence and scope of the present invention patent application and without reducing its intended advantages. It is therefore intended that such changes and modifications are covered by the attached claims.
    权利要求:
    Claims (20)
    [1]
    1. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", comprising the formula and the respective optional salts below: characterized by each Ri being independently C1-C10 alkyl, benzyl or H; wherein R2 is C1-C10 alkyl; wherein R3 is C1-C10 alkyl; and wherein R4 is C4-C22 alkyl or alkenyl.
    [2]
    2. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION" according to claim 1, characterized in that each alkyl is selected independently from the group consisting of a strong alkyl chain, a branched alkyl chain, a cyclic alkyl, a saturated version of the above mentioned, an unsaturated version of the above and respective combinations.
    [3]
    3. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized in that the alkyl for each of Ri, R2 and R3 is selected independently of the group consisting of methyl; ethyl; propyl; butyl; pentyl; hexyl; heptyla; octyl; nonila; decila and respective combinations.
    [4]
    4. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized in that the alkyl for R4 is selected from the group consisting of butyl; pentyl; hexyl; heptyla; octyl; nonila; decila and respective combinations.
    [5]
    5. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized by R2 and R3 being methyl.
    [6]
    6. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized by R2 and R3 being butyl or n-butyl.
    [7]
    7. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized by also comprising an X counterion, as shown in the general formula below:
    [8]
    8. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 7, characterized in that the counterion is a halide.
    [9]
    9. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 8, characterized in that the halide is selected from the group consisting of fluoride, chloride, bromide, iodide and any respective combination.
    [10]
    10. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 7, characterized in that the counterion is a carboxylate selected from reaction with mineral acid; acrylic acid; Acetic Acid; methacrylic acid; glycolic acid; thioglycolic acid; propionic acid; butanoic acid and respective combinations.
    [11]
    11. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized by providing, at least, one component selected from the group consisting of thermodynamic hydrate inhibitors, one or more kinetic hydrate inhibitors, one or more additional anti-caking agents and combinations thereof.
    [12]
    12. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized by providing, at least, one component selected from the group consisting of asphaltene inhibitors, paraffin inhibitors, corrosion inhibitors, scale, emulsifiers, water clarifiers, dispersants, emulsion breakers and respective combinations.
    [13]
    13. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized by providing, at least, a polar or support solvent or a respective mixture.
    [14]
    14. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized by providing, at least, a solvent selected from the group consisting of isopropanol, methanol, ethanol, 2-ethyl hexanol, heavy aromatic naphtha , toluene, ethylene glycol, ethylene glycol monobutyl ether (EGMBE), diethylene glycol monoethyl ether, xylene and combinations thereof.
    [15]
    15. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized by providing at least one or any combination of the following formulas:
    [16]
    16. "COMPOSITION TO REDUCE HYDRATE AGGLOMERATION", according to claim number 1, characterized by providing at least one or any combination of the respective optional formulas and salts:
    [17]
    17. “METHOD TO REDUCE HYDRATE AGGLOMERATION", covers a method to inhibit the formation of hydrate clusters in a fluid by providing water, gas and, optionally, liquid hydrocarbon, characterized by adding an amount between 0.1 and 3% by volume based on the percentage of anti-caking water in the composition as described in claim 1.
    [18]
    18. “METHOD FOR REDUCING HYDRATE AGGLOMERATION", according to claim number 17, characterized in that the said fluid has a salinity of 1% to 25% w / w of the percentage of total dissolved solids.
    [19]
    19. "METHOD TO REDUCE HYDRATE AGGLOMERATION", according to claim number 17, characterized in that said fluid has a water cut of 1 to 80% v / v of the total dissolved solids.
    [20]
    20. “METHOD FOR REDUCING HYDRATE AGGLOMERATION", according to claim number 17, characterized in that the fluid is contained in an oil or gas pipeline or refinery.
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    同族专利:
    公开号 | 公开日
    US20120157351A1|2012-06-21|
    WO2012082815A3|2013-01-17|
    CA2821730A1|2012-06-21|
    US8618025B2|2013-12-31|
    CN103261149B|2015-07-15|
    EP2651877A4|2014-08-06|
    CA2821730C|2019-11-12|
    EA024680B1|2016-10-31|
    EA201390709A1|2013-12-30|
    CN103261149A|2013-08-21|
    BR112013015062A2|2017-09-19|
    MX2013006947A|2013-07-15|
    WO2012082815A2|2012-06-21|
    EP2651877A2|2013-10-23|
    PL2651877T3|2016-07-29|
    US9458373B2|2016-10-04|
    MX340173B|2016-06-29|
    US20140094393A1|2014-04-03|
    EP2651877B1|2016-03-09|
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    法律状态:
    2018-11-21| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2019-06-11| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2020-02-18| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-03-10| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 14/12/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    2021-10-13| B21F| Lapse acc. art. 78, item iv - on non-payment of the annual fees in time|Free format text: REFERENTE A 10A ANUIDADE. |
    2021-10-26| B25D| Requested change of name of applicant approved|Owner name: NALCO COMPANY LLC (US) |
    2021-11-16| B25D| Requested change of name of applicant approved|Owner name: CHAMPIONX LLC (US) |
    2022-02-01| B24J| Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)|Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2649 DE 13-10-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |
    优先权:
    申请号 | 申请日 | 专利标题
    US12/970,280|2010-12-16|
    US12/970,280|US8618025B2|2010-12-16|2010-12-16|Composition and method for reducing hydrate agglomeration|
    PCT/US2011/064766|WO2012082815A2|2010-12-16|2011-12-14|Composition and method for reducing hydrate agglomeration|
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