CN105199702B - A kind of foam discharging agent and preparation method thereof of condensate oil, methanol - Google Patents
A kind of foam discharging agent and preparation method thereof of condensate oil, methanol Download PDFInfo
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- CN105199702B CN105199702B CN201510683048.1A CN201510683048A CN105199702B CN 105199702 B CN105199702 B CN 105199702B CN 201510683048 A CN201510683048 A CN 201510683048A CN 105199702 B CN105199702 B CN 105199702B
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- 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 present invention provides foam discharging agent of a kind of condensate oil, methanol and preparation method thereof, which forms according to the component of following weight ratio：Amphoteric surfactant 30~40%；Anion surfactant 3~5%；Cationic surfactant 0.1~0.2%；Nonionic class surfactant 1~3%；Foam stabilizer 0.5~1.0%;Triethanolamine 0.1~0.3%；Ethylene glycol 0.1~0.3%;Sodium salt 0.1~0.3%；Remaining is water.It is strong to take outlet capacity, plays and reduces oil jacket pressure difference, improves the effect for taking outlet capacity；The foam discharging agent simple production process that the present invention synthesizes, production cost is low, and environmental pollution is small.
Description
Technical field
The present invention relates to gas well exploitation foam discharging agent in a kind of oil gas field field, particularly one kind is provided simultaneously with condensate oil
With the oil field gas well foam discharging agent and preparation method of methanol function.
Background technology
It is a kind of drainage gas recovery that recent domestic develops rapidly in foam drainage gas recovery, essence belongs to
Chemical draining is a kind of new technology to be grown up using the foaming characteristic in surfactant.Its principle is to utilize natural gas
With the effect for being dissolved in the foaming agent of liquid in well, the Thysanophyllum continuously risen is formed, liquid is carried out out of well and is mixed in wherein
Solid particle, by introducing some surfactants and high molecular polymer with specific function into shaft bottom mineralized water,
It by means of the stirring of natural gas flow, is come into full contact with shaft bottom hydrops, generates the resistance aqueous foam of a large amount of relatively stable low-density,
Make it during gas-liquid two-phase mixes perpendicular flow, generate a variety of physics such as foam, dispersion, drag reduction, washing-chemistry effect
Should, " slipping loss " is reduced in pit shaft, air-flow is improved and vertically lifts liquid energy power, achieve the purpose that water pumping gas production.In fluid-discharge technology skill
In art series, bubble row's technique with its is easy for construction, equipment is simple, it is easy for construction, at low cost, be applicable in that well depth range is big, does not influence
The advantages that gas well normally produces, Cheap highly effective.Technology of gas recovery by foam drainage has construction for the gas-water well of low pressure, small yield
Easily, produce effects daily production that is fast, at low cost, not influencing gas well the advantages that, be increasingly subject to common concern both domestic and external.Foam
Can draining successful, depends greatly on the performance of foaming agent used, it is therefore necessary to establish effective foam discharging agent
Foam discharging agent is in optimized selection in assessment technique.
Since the reservoir properties of gas field different blocks are different, many gas wells are with condensate and methanol.On this condition, it is existing
It can be substantially reduced with the foamability, foam stability and fluid-carrying capability of foam discharging agent, the foam that many foam discharging agents generate can be rapid
It disappears, does not generate foam even.This just there is an urgent need to develop it is a kind of be suitable for containing condensate and methanol gas field stratum characteristic and
The novel foam discharging agent of mining conditions, to reach oil/gas well stimulation, stable yields purpose.
Invention content
In order to overcome the disadvantages of the above prior art, be used for containing a large amount of condensates the purpose of the present invention is to provide one kind and
The gas well of methanol can foam under natural gas agitation, form a large amount of foams, condensate, first alcohol and water be made to be easier what is be carried over
Condensate oil, the foam discharging agent of methanol and preparation method.
In order to achieve the above object, the technical solution taken of the present invention is：The foam discharging agent of a kind of condensate oil, methanol, should
Foam discharging agent is formed according to the component of following weight ratio：
Amphoteric surfactant 30~40%;
Anion surfactant 3~5%;
Cationic surfactant 0.1~0.2%;
Nonionic class surfactant 1~3%;
Foam stabilizer 0.5~1.0%;
Triethanolamine 0.1~0.3%;
Ethylene glycol 0.1~0.3%;
Sodium salt 0.1~0.3%;
Remaining is water.
The amphoteric surfactant is takes Cocoamidopropyl betaine, dodecanamide propyl amine oxide or dodecane
Any one of base hydroxypropyl sulfobetaines.
The anion surfactant is sodium alkyl sulfate, sodium alkyl benzene sulfonate, sodium alkyl sulfonate, dioctyl succinate
Disulfonate acid or petroleum sodium sulfonate it is any.
The cationic surfactant is cetyl trimethylammonium bromide, hexadecyltrimethylammonium chloride, ten
Any one of dialkyl group trimethylammonium bromide or dodecyltriethylammonium ammonium bromide.
The nonionic surfactant is perfluoro hexyl potassium sulfonate or ethylperfluoro alkylamide.
The foam stabilizer is any in polyvinyl alcohol, lauryl sodium sulfate or sodium sulfate of polyethenoxy ether of fatty alcohol
Kind.
The sodium salt is any one of sodium chloride, sodium sulphate or sodium carbonate.
A kind of condensate oil, methanol foam discharging agent preparation method,：
（1）Respectively measure weight ratio be 30~40% amphoteric surfactant, 3~5% anion surfactant,
0.1~0.2% cationic surfactant, 1~3% nonionic class surfactant, 0.5~1.0% foam stabilizer, 0.1~
0.3% triethanolamine, 0.1~0.3% ethylene glycol, 0.1~0.3% sodium salt, as raw material for standby；
（2）Take step（1）The amphoteric surfactant of middle measurement, anion surfactant, cationic surfactant,
Nonionic surfactant is separately added into a mixing bowl and stirs, and is heated to 30~50 DEG C；
（3）Take step（1）The foam stabilizer of middle measurement is added to step（2）In a mixing bowl in, at 30~50 DEG C of constant temperature,
It stirs to all materials dissolving being added in a mixing bowl；
（4）The triethanolamine, ethylene glycol, sodium salt and the water that are measured in step (1) is taken to be added sequentially to step（3）Middle a mixing bowl
It is interior, at 30~50 DEG C of constant temperature, stir to all materials dissolving being added in a mixing bowl；
（5）By step（4）The material all dissolved in middle a mixing bowl is released, and packs the finished product to get foam discharging agent.
The present invention is had the following advantages using above technical scheme:
（1）Foam discharging agent that the present invention synthesizes is easy to operate, dosage is few, and when use is not required to dilute, and directly comes into operation, and medicine
Agent adds concentration 0.4~0.6%, and similar product is 1.0~3.0%；
（2）The foam discharging agent that the present invention the synthesizes foam discharging agent has excellent blistering under the conditions of high-content condensate and methanol
Performance and fluid-carrying capability, and foam stability is good, and similar product is mostly simple function foam discharging agent in the market, at present also without same
When condensate oil and methanol foam discharging agent；
（3）It is strong that the foam discharging agent that the present invention synthesizes takes outlet capacity, plays and reduces oil jacket pressure difference, improves the effect for taking outlet capacity
Fruit；
（4）The foam discharging agent simple production process that the present invention synthesizes, production cost is low, and environmental pollution is small.
Specific embodiment
The present invention is described in detail with reference to embodiment.
Embodiment 1
The foam discharging agent of a kind of condensate oil, methanol, the foam discharging agent are formed according to the component of following weight ratio：
Amphoteric surfactant 30~40%;
Anion surfactant 3~5%;
Cationic surfactant 0.1~0.2%;
Nonionic class surfactant 1~3%;
Foam stabilizer 0.5~1.0%;
Triethanolamine 0.1~0.3%;
Ethylene glycol 0.1~0.3%;
Sodium salt 0.1~0.3%;
Remaining is water.
A kind of condensate oil, methanol foam discharging agent preparation method,：
（1）Respectively measure weight ratio be 30~40% amphoteric surfactant, 3~5% anion surfactant,
0.1~0.2% cationic surfactant, 1~3% nonionic class surfactant, 0.5~1.0% foam stabilizer, 0.1~
0.3% triethanolamine, 0.1~0.3% ethylene glycol, 0.1~0.3% sodium salt, as raw material for standby；
（2）Take step（1）The amphoteric surfactant of middle measurement, anion surfactant, cationic surfactant,
Nonionic surfactant is separately added into a mixing bowl and stirs, and is heated to 30~50 DEG C；
（3）Take step（1）The foam stabilizer of middle measurement is added to step（2）In a mixing bowl in, at 30~50 DEG C of constant temperature,
It stirs to all materials dissolving being added in a mixing bowl；
（4）The triethanolamine, ethylene glycol, sodium salt and the water that are measured in step (1) is taken to be added sequentially to step（3）Middle a mixing bowl
It is interior, at 30~50 DEG C of constant temperature, stir to all materials dissolving being added in a mixing bowl；
（5）By step（4）The material all dissolved in middle a mixing bowl is released, and packs the finished product to get foam discharging agent.
The evaluation of foam discharging agent is substantially carried out the content of two aspects, i.e. the evaluation of foam discharging agent foaming power and foam stabilizing ability measures
With the measure of foam discharging agent liquid carry over.
Foaming agent foam power and foam stabilizing ability performance evaluation:Mono- Mi1es methods of Ross (Roche Mir method).
The measure of foaming agent liquid carry over:The gas of certain flow rate is passed through test solution, forms foam, measure is steeped after a certain period of time
The volume number of liquid (You Heshui) that foam carries out, the measurement as foaming agent fluid-carrying capability.
It is obtained by the evaluation for the present embodiment being made foam discharging agent, methanol and condensate have foam discharging agent certain shadow
It rings, at 60 DEG C, when drug concentration is 0.5%, has stronger foaming power to 30% high-content condensate mineralized water, take liquid
Ability can reach more than 58%, for the mineralized water containing methanol 20%, it may have preferable foamability, and foam stabilization are taken
Liquid energy power can also reach more than 80%;For the condensate and the mineralized water of methanol simultaneously containing high-content,
Also there is good foamability and foam stability, fluid-carrying capability can also reach more than 50%, illustrate that it has
Good methanol tolerance and condensate oil ability.
Embodiment 2
Foam discharging agent provided in this embodiment（Code name CQ-1）, it is made according to the dosage of following raw material components：
（1）The Cocoamidopropyl betaine, 3% sodium alkyl sulfate, the 16 of 0.1% that weight ratio is 30% are measured respectively
Alkyl trimethyl ammonium bromide, 1% perfluoro hexyl potassium sulfonate, 0.5% polyvinyl alcohol, 0.1% triethanolamine, 0.1% second two
Alcohol, 0.1% sodium chloride, as raw material for standby；
（2）Take step（1）The Cocoamidopropyl betaine of middle measurement, sodium alkyl sulfate, cetyl trimethyl bromination
Ammonium, perfluoro hexyl potassium sulfonate are separately added into a mixing bowl and stir, and are heated to 30~50 DEG C；
（3）Take step（1）The polyvinyl alcohol of middle measurement is added to step（2）In a mixing bowl in, in 30~50 DEG C of constant temperature
Under, it stirs to all materials dissolving being added in a mixing bowl；
（4）The triethanolamine, ethylene glycol, sodium chloride and the water that are measured in step (1) is taken to be added sequentially to step（3）Middle stirring
In cylinder, at 30~50 DEG C of constant temperature, stir to all materials dissolving being added in a mixing bowl；
（5）By step（4）The material all dissolved in middle a mixing bowl is released, and packs the finished product to get foam discharging agent.
Embodiment 3
Foam discharging agent provided in this embodiment（Code name CQ-2）, it is made according to the dosage of following raw material components：
（1）The dodecanamide propyl amine oxide, 5% sodium alkyl benzene sulfonate, the ten of 0.2% that weight ratio is 40% are measured respectively
Six alkyl trimethyl ammonium chlorides, 3% ethylperfluoro alkylamide, 1% lauryl sodium sulfate, 0.3% triethanolamine,
0.3% ethylene glycol, 0.3% sodium sulphate, as raw material for standby；
（2）Take step（1）Dodecanamide propyl amine oxide, sodium alkyl benzene sulfonate, the cetyl trimethyl chlorine of middle measurement
Change ammonium, ethylperfluoro alkylamide are separately added into a mixing bowl and stir, and are heated to 30~50 DEG C；
（3）Take step（1）The lauryl sodium sulfate of middle measurement is added to step（2）In a mixing bowl in, in constant temperature 30
At~50 DEG C, stir to all materials dissolving being added in a mixing bowl；
（4）The triethanolamine, ethylene glycol, sodium chloride and the water that are measured in step (1) is taken to be added sequentially to step（3）Middle stirring
In cylinder, at 30~50 DEG C of constant temperature, stir to all materials dissolving being added in a mixing bowl；
（5）By step（4）The material all dissolved in middle a mixing bowl is released, and packs the finished product to get foam discharging agent.
Embodiment 4
Foam discharging agent provided in this embodiment（Code name CQ-3）, it is made according to the dosage of following raw material components：
（1）The dialkyl group hydroxypropyl sulfobetaines, 4% dioctyl succinate disulfonate acid that weight ratio is 35% are measured respectively
（Or sodium alkyl sulfonate or petroleum sodium sulfonate）, 0.15% dodecyl trimethyl ammonium bromide（Dodecyltriethylammonium ammonium bromide）、
1.5% ethylperfluoro alkylamide, 0.75% sodium sulfate of polyethenoxy ether of fatty alcohol, 0.2% triethanolamine, 0.2% second
Glycol, 0.2% sodium carbonate, as raw material for standby；
（2）Take step（1）Dialkyl group hydroxypropyl sulfobetaines, dioctyl succinate disulfonate acid, the dodecane of middle measurement
Base trimethylammonium bromide, ethylperfluoro alkylamide are separately added into a mixing bowl and stir, and are heated to 30~50 DEG C；
（3）Take step（1）The sodium sulfate of polyethenoxy ether of fatty alcohol of middle measurement is added to step（2）In a mixing bowl in,
At 30~50 DEG C of constant temperature, stir to all materials dissolving being added in a mixing bowl；
（4）The triethanolamine, ethylene glycol, sodium carbonate and the water that are measured in step (1) is taken to be added sequentially to step（3）Middle stirring
In cylinder, at 30~50 DEG C of constant temperature, stir to all materials dissolving being added in a mixing bowl；
（5）By step（4）The material all dissolved in middle a mixing bowl is released, and packs the finished product to get foam discharging agent.
It is the performance progress verification experimental verification for embodiment 1-3 being made respectively foam discharging agent below：
(1) experimental simulation water sample is tested
Laboratory configuration total salinity simulates mineralized water for 50000mg/L, is separately added into 30% condensate and 20% methanol,
Carry out laboratory test.
The mineralized water of a50000mg/L:Weigh respectively 4.33g calcium chloride, 2.93g magnesium chlorides, 13.18g sodium sulphate and
29.56g sodium chloride is 1L with distilled water dissolved dilution to total volume in beaker；
For 50000mg/L (agents useful for same is that chemistry is pure)；
Experiment Data Records are shown in Table 1, table 2 and table 3.
Comparative experimental data (condensate difference dosage) of the table 1 at 60 DEG C
Comparative experimental data (methanol difference dosage) of the table 2 at 60 DEG C
Comparative experimental data (methanol and condensate dosage) of the table 3 at 60 DEG C
As can be seen from Table 1, methanol and condensate have a certain impact to foam discharging agent, at 60 DEG C, work as drug concentration
When being 0.5%, there is stronger foaming power to 30% high-content condensate mineralized water, fluid-carrying capability can reach more than 58%, for
Mineralized water containing methanol 20%, it may have preferable foamability, and foam stabilization, fluid-carrying capability can also reach more than 80%;
For the condensate and the mineralized water of methanol simultaneously containing high-content,
Also there is good foamability and foam stability, fluid-carrying capability can also reach more than 50%, illustrate that it has
Good methanol tolerance and condensate oil ability.
(2) certain natural gas well water flooding is tested
1. the water flooding water sample at scene is analyzed, 4 are the results are shown in Table.
4 gas well stratum water sample analysis result of table
At 2.60 DEG C, certain natural gas well water flooding foamability and liquid carry over are measured, and use above-mentioned water flooding, addition
20% methanol and 30% condensate, under identical experiment condition, foam discharging agent CQ-1, CQ-2, CQ-3 is made in embodiment 2-4 respectively
With foaming power and fluid-carrying capability of the current NR-1 types foam discharging agent in gas well water flooding, data result comparison is shown in Table 5.
Table 5 measures certain natural gas well water flooding foamability and liquid carry over（120℃)
(4) the compatibility experiment of foam discharging agent
Investigate respectively the foam discharging agent for different salinities, methanol, condensation oil content compatibility influence, experimental result
It is shown in Table 6-table 7.
6 ore deposit degree compatibility mechanism of table
| Kuangization Du ∕ 104mg·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 a concentration of 2%；Test temperature is 120 DEG C；Testing time is 12h.
7 methanol compatibility mechanism of table
Note：Tested media：Mineralized water+methanol；Foam discharging agent a concentration of 2%；Test temperature is 120 DEG C；Testing time is 12h.
8 condensate compatibility mechanism of table
Note：Tested media：Mineralized water+condensate；Foam discharging agent a concentration of 2%；Test temperature is 120 DEG C；Testing time is
12h。
It can be analyzed by compatibility mechanism, which has good compatibility with methanol, salinity water and gas field water flooding
Property, no deposited phenomenon occurs
The foregoing examples are only illustrative of the present invention, does not form the limitation to protection scope of the present invention, all
Be with the present invention it is the same or similar design all belong to the scope of protection of the present invention within.
Claims (1)
1. a kind of preparation method of the foam discharging agent of condensate oil, methanol, it is characterised in that：
（1）Respectively measure weight ratio be 30~40% amphoteric surfactant, 3~5% anion surfactant, 0.1~
0.2% cationic surfactant, 1~3% nonionic class surfactant, 0.5~1.0% foam stabilizer, 0.1
~0.3% triethanolamine, 0.1~0.3% ethylene glycol, 0.1~0.3% sodium salt, as raw material for standby；
（2）Take step（1）The amphoteric surfactant of middle measurement, anion surfactant, cationic surfactant, it is non-from
Sub- surfactant is separately added into a mixing bowl and stirs, and is heated to 30~50 DEG C；
（3）Take step（1）The foam stabilizer of middle measurement is added to step（2）In a mixing bowl in, at 30~50 DEG C of constant temperature, stirring
To all materials dissolving being added in a mixing bowl；
（4）The triethanolamine, ethylene glycol, sodium salt and the water that are measured in step (1) is taken to be added sequentially to step（3）In middle a mixing bowl,
At 30~50 DEG C of constant temperature, stir to all materials dissolving being added in a mixing bowl；
（5）By step（4）The material all dissolved in middle a mixing bowl is released, and packs the finished product to get foam discharging agent；
The amphoteric surfactant is takes Cocoamidopropyl betaine, dodecanamide propyl amine oxide or dodecyl hydroxyl
Any one of propylsultaine glycine betaine；
The anion surfactant is sodium alkyl sulfate, sodium alkyl benzene sulfonate, sodium alkyl sulfonate, dioctyl succinate acid sulphur
Sour sodium or petroleum sodium sulfonate it is any；
The cationic surfactant is cetyl trimethylammonium bromide, hexadecyltrimethylammonium chloride, dodecane
Any one of base trimethylammonium bromide or dodecyltriethylammonium ammonium bromide；
The nonionic surfactant is perfluoro hexyl potassium sulfonate or ethylperfluoro alkylamide；
The foam stabilizer is one kind in polyvinyl alcohol, lauryl sodium sulfate or sodium sulfate of polyethenoxy ether of fatty alcohol；
The sodium salt is any one of sodium chloride, sodium sulphate or sodium carbonate.
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| CN108251091A (en) * | 2016-12-29 | 2018-07-06 | 中国石油天然气股份有限公司 | A kind of anti-salinity, condensate oil fluid foaming agent and preparation method thereof |
| CN108949133B (en) * | 2017-05-19 | 2020-12-11 | 中国石油化工股份有限公司 | Foam flooding system and preparation method thereof |
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| CN111423867A (en) * | 2020-05-12 | 2020-07-17 | 陕西省石油化工研究设计院 | Condensate oil resistant efficient foam discharging rod and preparation method thereof |
| CN111635746B (en) * | 2020-05-22 | 2022-10-18 | 四川花语精细化工有限公司 | Special methanol, condensate oil and high mineralized water resistant betaine foam scrubbing agent for oil and gas fields and preparation method thereof |
| CN114456791B (en) * | 2022-02-07 | 2023-06-02 | 中海油(天津)油田化工有限公司 | Deep water oil-gas field liquid foam discharging agent and production process thereof |
| CN114479816B (en) * | 2022-04-02 | 2023-05-05 | 四川锦盛油田技术服务有限公司 | Foam drainage agent and preparation method thereof |
| CN115433558A (en) * | 2022-09-07 | 2022-12-06 | 陕西越洋石油技术服务有限公司 | Gas well self-produced gas drainage energy-increasing flowback agent and application thereof |
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