CN105199702A - Foam scrubbing agent for resisting condensate oil and methyl alcohol and preparation method thereof - Google Patents
Foam scrubbing agent for resisting condensate oil and methyl alcohol and preparation method thereof Download PDFInfo
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- CN105199702A CN105199702A CN201510683048.1A CN201510683048A CN105199702A CN 105199702 A CN105199702 A CN 105199702A CN 201510683048 A CN201510683048 A CN 201510683048A CN 105199702 A CN105199702 A CN 105199702A
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- methyl alcohol
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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
- C09K8/584—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
Abstract
The invention provides a foam scrubbing agent for resisting condensate oil and methyl alcohol and a preparation method thereof. The foam scrubbing agent consists of the following components in percentage by weight: 30 to 40 percent of an amphoteric surfactant, 3 to 5 percent of an anion surfactant, 0.1 to 0.2 percent of a cation surfactant, 1 to 3 percent of a nonionic surfactant, 0.5 to 1.0 percent of a foam stabilizing agent, 0.1 to 0.3 percent of triethanolamine, 0.1 to 0.3 percent of ethylene glycol, 0.1 to 0.3 percent of sodium salt and the balance of water. The foam scrubbing agent for resisting condensate oil and methyl alcohol is high in water-carrying performance, and achieves the effects of reducing the oil jacket pressure difference and improving the water-carrying performance. The production technology of the foam scrubbing agent for resisting condensate oil and methyl alcohol is simple; the production cost is low, and the pollution to the environment is low.
Description
Technical field
The present invention relates to gas well exploitation foam discharging agent in a kind of oil-gas field field, particularly a kind of oil field gas well foam discharging agent and preparation method simultaneously possessing condensate oil and methyl alcohol function.
Background technology
Be a kind of drainage gas recovery that recent domestic develops rapidly at foam drainage gas recovery, its essence belongs to chemical draining, is a kind of new technology utilizing the whipability in tensio-active agent and grow up.Its principle is the effect of the foaming agent utilizing Sweet natural gas and be dissolved in liquid in well, form the foamy column risen continuously, in well, carry out liquid and be mixed in solid particulate wherein, by introducing some tensio-active agent with specific function and high molecular polymers in the mineralized water of shaft bottom, by means of the stirring of natural gas flow, fully contact with shaft bottom hydrops, produce a large amount of more stable low-density resistance aqueous foams, make it in gas-liquid two-phase mixing perpendicular flow process, produce foam, dispersion, drag reduction, the multiple physical-chemical effects such as washing, reduce in pit shaft " slippage loss ", improve air-flow and vertically lift liquid ability, reach the object of water pumping gas production.In fluid-discharge technology technology series, bubble row technique is simple with its easy construction, equipment, easy construction, cost are low, be suitable for well depth scope greatly, does not affect the advantages such as gas well is normally produced, Cheap highly effective.Technology of gas recovery by foam drainage for the gas-water well of low pressure, little output, have construction easily, the advantage such as produce effects fast, cost is low, the daily production that do not affect gas well, be day by day subject to common concern both domestic and external.Can foaming water discharge obtain successfully, depends on the performance of pore forming material used to a great extent, therefore must set up effective foam discharging agent evaluation technique, be in optimized selection foam discharging agent.
Because the reservoir properties of gas field different blocks is different, many gas wells are with condensate oil and methyl alcohol.With this understanding, now can greatly reduce with the latherability of foam discharging agent, froth stability and fluid-carrying capability, the foam that many foam discharging agents produce can rapidly disappear, and does not even produce foam.This is just in the urgent need to developing a kind of novel foam discharging agent be applicable to containing condensate oil and methyl alcohol gas field stratum characteristic and field conditions, to reach oil/gas well stimulation, stable yields object.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of for the gas well containing a large amount of condensate oil and methyl alcohol, can foam under Sweet natural gas stirs, form a large amount of foam, make condensate oil, first alcohol and water more easily by the condensate oil, the foam discharging agent of methyl alcohol and the preparation method that take out of.
In order to achieve the above object, the technical scheme that the present invention takes is: the foam discharging agent of a kind of condensate oil, methyl alcohol, and this foam discharging agent forms according to the component of following weight ratio:
Amphoterics 30 ~ 40%;
Anion surfactant 3 ~ 5%;
Cats product 0.1 ~ 0.2%;
Nonionic class tensio-active agent 1 ~ 3%;
Suds-stabilizing agent 0.5 ~ 1.0%;
Trolamine 0.1 ~ 0.3%;
Ethylene glycol 0.1 ~ 0.3%;
Sodium salt 0.1 ~ 0.3%;
All the other are water.
Described amphoterics is get any one in AMONYL 380LC, dodecanamide propyl amine oxide or dodecyl hydroxypropyl sultaine.
Described anion surfactant is any one of sodium alkyl sulfate, sodium alkyl benzene sulfonate, alkyl sodium sulfonate, dioctyl succinate disulfonate acid or petroleum sodium sulfonate.
Described cats product is any one in cetyl trimethylammonium bromide, palmityl trimethyl ammonium chloride, Trimethyllaurylammonium bromide or dodecyltriethylammonium brometo de amonio.
Described nonionogenic tenside is perfluoro hexyl potassium sulfonate or ethylperfluoro alkylamide.
Described suds-stabilizing agent is any one in polyvinyl alcohol, sodium lauryl sulphate or polyoxyethylenated alcohol sodium sulfate.
Described sodium salt is any one in sodium-chlor, sodium sulfate or sodium carbonate.
A preparation method for the foam discharging agent of condensate oil, methyl alcohol:
(1) measuring weight ratio is respectively the amphoterics of 30 ~ 40%, anion surfactant, the cats product of 0.1 ~ 0.2%, nonionic class tensio-active agent, the suds-stabilizing agent of 0.5 ~ 1.0%, trolamine, the ethylene glycol of 0.1 ~ 0.3%, the sodium salt of 0.1 ~ 0.3% of 0.1 ~ 0.3% of 1 ~ 3% of 3 ~ 5%, as raw material for standby;
(2) get the amphoterics, anion surfactant, cats product, the nonionogenic tenside that measure in step (1) to add respectively in a mixing bowl and stir, be heated to 30 ~ 50 DEG C;
(3) get in a mixing bowl that the suds-stabilizing agent measured in step (1) joins in step (2), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(4) get the trolamine, ethylene glycol, sodium salt and the water that measure in step (1) to join successively in the middle a mixing bowl of step (3), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(5) released by the material all dissolved in a mixing bowl in step (4), packaging, obtains the finished product of foam discharging agent.
The present invention adopts above technical scheme, has the following advantages:
(1) foam discharging agent of the present invention's synthesis is easy to operate, consumption is few, does not need dilution, directly come into operation, and adding of agent concentration is 0.4 ~ 0.6%, and like product is 1.0 ~ 3.0% during use;
(2) this foam discharging agent of foam discharging agent of the present invention's synthesis has excellent lathering property and fluid-carrying capability under high-content condensate oil and methyl alcohol condition, and froth stability is good, and like product mostly is simple function foam discharging agent on market, there is no the foam discharging agent of condensate oil and methyl alcohol simultaneously at present yet;
(3) foam discharging agent of the present invention's synthesis takes outlet capacity by force, serves and reduces oil jacket pressure reduction, improves the effect taking outlet capacity;
(4) the foam discharging agent production technique of the present invention's synthesis is simple, and production cost is low, and environmental pollution is little.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment 1
A foam discharging agent for condensate oil, methyl alcohol, this foam discharging agent forms according to the component of following weight ratio:
Amphoterics 30 ~ 40%;
Anion surfactant 3 ~ 5%;
Cats product 0.1 ~ 0.2%;
Nonionic class tensio-active agent 1 ~ 3%;
Suds-stabilizing agent 0.5 ~ 1.0%;
Trolamine 0.1 ~ 0.3%;
Ethylene glycol 0.1 ~ 0.3%;
Sodium salt 0.1 ~ 0.3%;
All the other are water.
A preparation method for the foam discharging agent of condensate oil, methyl alcohol:
(1) measuring weight ratio is respectively the amphoterics of 30 ~ 40%, anion surfactant, the cats product of 0.1 ~ 0.2%, nonionic class tensio-active agent, the suds-stabilizing agent of 0.5 ~ 1.0%, trolamine, the ethylene glycol of 0.1 ~ 0.3%, the sodium salt of 0.1 ~ 0.3% of 0.1 ~ 0.3% of 1 ~ 3% of 3 ~ 5%, as raw material for standby;
(2) get the amphoterics, anion surfactant, cats product, the nonionogenic tenside that measure in step (1) to add respectively in a mixing bowl and stir, be heated to 30 ~ 50 DEG C;
(3) get in a mixing bowl that the suds-stabilizing agent measured in step (1) joins in step (2), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(4) get the trolamine, ethylene glycol, sodium salt and the water that measure in step (1) to join successively in the middle a mixing bowl of step (3), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(5) released by the material all dissolved in a mixing bowl in step (4), packaging, obtains the finished product of foam discharging agent.
The content of two aspects is mainly carried out in the evaluation of foam discharging agent, i.e. foam discharging agent foaming power and the surely evaluating and measuring of bubble ability and the mensuration of foam discharging agent liquid carry over.
Foaming agent foam power and steady bubble ability performance evaluation: Ross mono-Mi1es method (Roche Mir method).
The mensuration of pore forming material liquid carry over: the gas of certain flow rate is passed into test solution, forms foam, and the volume number of the liquid (You Heshui) that foamover goes out after measuring certain hour, as measuring of whipping agent fluid-carrying capability.
Obtained by evaluation the present embodiment being obtained to foam discharging agent; methyl alcohol and condensate oil all have a certain impact to foam discharging agent; at 60 DEG C; when drug concentration is 0.5%, it has stronger foaming power to the high-content condensate oil mineralized water of 30%, and fluid-carrying capability can reach more than 58%; for the mineralized water containing methyl alcohol 20%; also there is good latherability, and foam stabilization, its fluid-carrying capability also can reach more than 80%; For containing the condensate oil of high-content and the mineralized water of methyl alcohol simultaneously,
Also have good latherability and froth stability, its fluid-carrying capability also can reach more than 50%, illustrates that it has good methanol tolerance and condensate oil ability.
Embodiment 2
The foam discharging agent (code name CQ-1) that the present embodiment provides, obtains according to the consumption of following feed composition:
(1) measuring weight ratio is respectively the AMONYL 380LC of 30%, sodium alkyl sulfate, the cetyl trimethylammonium bromide of 0.1%, perfluoro hexyl potassium sulfonate, the polyvinyl alcohol of 0.5%, trolamine, the ethylene glycol of 0.1%, the sodium-chlor of 0.1% of 0.1% of 1% of 3%, as raw material for standby;
(2) get the AMONYL 380LC, sodium alkyl sulfate, cetyl trimethylammonium bromide, the perfluoro hexyl potassium sulfonate that measure in step (1) to add respectively in a mixing bowl and stir, be heated to 30 ~ 50 DEG C;
(3) get in a mixing bowl that the polyvinyl alcohol measured in step (1) joins in step (2), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(4) get the trolamine, ethylene glycol, sodium-chlor and the water that measure in step (1) to join successively in the middle a mixing bowl of step (3), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(5) released by the material all dissolved in a mixing bowl in step (4), packaging, obtains the finished product of foam discharging agent.
Embodiment 3
The foam discharging agent (code name CQ-2) that the present embodiment provides, obtains according to the consumption of following feed composition:
(1) measuring weight ratio is respectively the dodecanamide propyl amine oxide of 40%, sodium alkyl benzene sulfonate, the palmityl trimethyl ammonium chloride of 0.2%, ethylperfluoro alkylamide, the sodium lauryl sulphate of 1%, trolamine, the ethylene glycol of 0.3%, the sodium sulfate of 0.3% of 0.3% of 3% of 5%, as raw material for standby;
(2) get the dodecanamide propyl amine oxide, sodium alkyl benzene sulfonate, palmityl trimethyl ammonium chloride, the ethylperfluoro alkylamide that measure in step (1) to add respectively in a mixing bowl and stir, be heated to 30 ~ 50 DEG C;
(3) get in a mixing bowl that the sodium lauryl sulphate measured in step (1) joins in step (2), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(4) get the trolamine, ethylene glycol, sodium-chlor and the water that measure in step (1) to join successively in the middle a mixing bowl of step (3), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(5) released by the material all dissolved in a mixing bowl in step (4), packaging, obtains the finished product of foam discharging agent.
Embodiment 4
The foam discharging agent (code name CQ-3) that the present embodiment provides, obtains according to the consumption of following feed composition:
(1) measure respectively weight ratio be 35% dialkyl group hydroxypropyl sultaine, 4% dioctyl succinate disulfonate acid (or alkyl sodium sulfonate or petroleum sodium sulfonate), the Trimethyllaurylammonium bromide (dodecyltriethylammonium brometo de amonio) of 0.15%, ethylperfluoro alkylamide, the polyoxyethylenated alcohol sodium sulfate of 0.75%, trolamine, the ethylene glycol of 0.2%, the sodium carbonate of 0.2% of 0.2% of 1.5%, as raw material for standby;
(2) get the dialkyl group hydroxypropyl sultaine, dioctyl succinate disulfonate acid, Trimethyllaurylammonium bromide, the ethylperfluoro alkylamide that measure in step (1) to add respectively in a mixing bowl and stir, be heated to 30 ~ 50 DEG C;
(3) get in a mixing bowl that the polyoxyethylenated alcohol sodium sulfate measured in step (1) joins in step (2), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(4) get the trolamine, ethylene glycol, sodium carbonate and the water that measure in step (1) to join successively in the middle a mixing bowl of step (3), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(5) released by the material all dissolved in a mixing bowl in step (4), packaging, obtains the finished product of foam discharging agent.
Below that verification experimental verification is carried out to the performance that embodiment 1-3 obtains foam discharging agent respectively:
(1) experimental simulation water sample test
Laboratory configuration total mineralization is that 50000mg/L simulates mineralized water, adds 30% condensate oil and 20% methyl alcohol respectively, carries out laboratory test.
The mineralized water of a50000mg/L: taking 4.33g calcium chloride, 2.93g magnesium chloride, 13.18g sodium sulfate and 29.56g sodium-chlor respectively in beaker, is 1L with distilled water dissolved dilution to cumulative volume;
For 50000mg/L (agents useful for same is chemical pure);
Experiment Data Records is in table 1, table 2 and table 3.
The contrast experiment data of table 1 at 60 DEG C (the different dosage of condensate oil)
The contrast experiment data of table 2 at 60 DEG C (the different dosage of methyl alcohol)
The contrast experiment data of table 3 at 60 DEG C (methyl alcohol and condensate oil dosage)
As can be seen from Table 1; methyl alcohol and condensate oil all have a certain impact to foam discharging agent; at 60 DEG C; when drug concentration is 0.5%, it has stronger foaming power to the high-content condensate oil mineralized water of 30%, and fluid-carrying capability can reach more than 58%; for the mineralized water containing methyl alcohol 20%; also there is good latherability, and foam stabilization, its fluid-carrying capability also can reach more than 80%; For containing the condensate oil of high-content and the mineralized water of methyl alcohol simultaneously,
Also have good latherability and froth stability, its fluid-carrying capability also can reach more than 50%, illustrates that it has good methanol tolerance and condensate oil ability.
(2) certain gasser local water test
1. the local water water sample at scene is analyzed, and the results are shown in Table 4.
Table 4 gas well stratum water sample analytical results
2.60 at DEG C, certain gasser local water latherability and liquid carry over are measured, and use above-mentioned local water, add 20% methyl alcohol and 30% condensate oil, under identical experiment condition, the foaming power that embodiment 2-4 obtains foam discharging agent CQ-1, CQ-2, CQ-3 respectively and now uses NR-1 type foam discharging agent in gas well local water and fluid-carrying capability, data results contrast is in table 5.
Table 5 measures (120 DEG C) to certain gasser local water latherability and liquid carry over
(4) the compatibleness test of foam discharging agent
Investigate the impact of this foam discharging agent for the compatibleness of different salinity, methyl alcohol, condensate oil content respectively, experimental result is in table 6-table 7.
Table 6 ore deposit degree compatibility mechanism
| Kuangization Du ∕ 10 4mg·L -1 | 5.0 | 10.0 | 15.0 | 20.0 | 25.0 |
| Compatibility situation | Without precipitation | Without precipitation | Without precipitation | Without precipitation | Without precipitation |
Note: foam discharging agent concentration is 2%; Probe temperature is 120 DEG C; Test duration is 12h.
Table 7 methyl alcohol compatibility mechanism
Note: tested media: mineralized water+methyl alcohol; Foam discharging agent concentration is 2%; Probe temperature is 120 DEG C; Test duration is 12h.
Table 8 condensate oil compatibility mechanism
Note: tested media: mineralized water+condensate oil; Foam discharging agent concentration is 2%; Probe temperature is 120 DEG C; Test duration is 12h.
Can be analyzed by compatibility mechanism, this foam discharging agent and methyl alcohol, salinity water and gas field local water have good compatibleness, occur without deposited phenomenon
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (8)
1. a foam discharging agent for condensate oil, methyl alcohol, is characterized in that, this foam discharging agent forms according to the component of following weight ratio:
Amphoterics 30 ~ 40%;
Anion surfactant 3 ~ 5%;
Cats product 0.1 ~ 0.2%;
Nonionic class tensio-active agent 1 ~ 3%;
Suds-stabilizing agent 0.5 ~ 1.0%;
Trolamine 0.1 ~ 0.3%;
Ethylene glycol 0.1 ~ 0.3%;
Sodium salt 0.1 ~ 0.3%;
All the other are water.
2. the foam discharging agent of a kind of condensate oil according to claim 1, methyl alcohol, is characterized in that, described amphoterics is get any one in AMONYL 380LC, dodecanamide propyl amine oxide or dodecyl hydroxypropyl sultaine.
3. the foam discharging agent of a kind of condensate oil according to claim 1, methyl alcohol, it is characterized in that, described anion surfactant is any one of sodium alkyl sulfate, sodium alkyl benzene sulfonate, alkyl sodium sulfonate, dioctyl succinate disulfonate acid or petroleum sodium sulfonate.
4. the foam discharging agent of a kind of condensate oil according to claim 1, methyl alcohol, it is characterized in that, described cats product is any one in cetyl trimethylammonium bromide, palmityl trimethyl ammonium chloride, Trimethyllaurylammonium bromide or dodecyltriethylammonium brometo de amonio.
5. the foam discharging agent of a kind of condensate oil according to claim 1, methyl alcohol, is characterized in that, described nonionogenic tenside is perfluoro hexyl potassium sulfonate or ethylperfluoro alkylamide.
6. the foam discharging agent of a kind of condensate oil according to claim 1, methyl alcohol, is characterized in that, described suds-stabilizing agent is the one in polyvinyl alcohol, sodium lauryl sulphate or polyoxyethylenated alcohol sodium sulfate.
7. the foam discharging agent of a kind of condensate oil according to claim 1, methyl alcohol, is characterized in that, described sodium salt is any one in sodium-chlor, sodium sulfate or sodium carbonate.
8. the preparation method of the foam discharging agent of a kind of condensate oil according to claim 1, methyl alcohol, is characterized in that:
(1) measuring weight ratio is respectively the amphoterics of 30 ~ 40%, anion surfactant, the cats product of 0.1 ~ 0.2%, nonionic class tensio-active agent, the suds-stabilizing agent of 0.5 ~ 1.0%, trolamine, the ethylene glycol of 0.1 ~ 0.3%, the sodium salt of 0.1 ~ 0.3% of 0.1 ~ 0.3% of 1 ~ 3% of 3 ~ 5%, as raw material for standby;
(2) get the amphoterics, anion surfactant, cats product, the nonionogenic tenside that measure in step (1) to add respectively in a mixing bowl and stir, be heated to 30 ~ 50 DEG C;
(3) get in a mixing bowl that the suds-stabilizing agent measured in step (1) joins in step (2), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(4) get the trolamine, ethylene glycol, sodium salt and the water that measure in step (1) to join successively in the middle a mixing bowl of step (3), at constant temperature 30 ~ 50 DEG C, be stirred to all material dissolutions joined in a mixing bowl;
(5) released by the material all dissolved in a mixing bowl in step (4), packaging, obtains the finished product of foam discharging agent.
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| CN106221687A (en) * | 2016-07-21 | 2016-12-14 | 中国石油天然气股份有限公司长庆油田分公司 | A kind of gas field foam drainage rod and preparation method thereof |
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