CN104342097B - A kind of solid foam water discharge agent for gas field - Google Patents
A kind of solid foam water discharge agent for gas field Download PDFInfo
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- CN104342097B CN104342097B CN201310345196.3A CN201310345196A CN104342097B CN 104342097 B CN104342097 B CN 104342097B CN 201310345196 A CN201310345196 A CN 201310345196A CN 104342097 B CN104342097 B CN 104342097B
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- water discharge
- solid foam
- foam water
- discharge agent
- acid sodium
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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 present invention relates to a kind of solid foam water discharge agent, described solid foam water discharge agent is made up of the raw material of following mass percentage contents：Surfactant 40~50%, sodium carbonate 5~20%, sodium dihydrogen phosphate 40~55%；This solid foam water discharge agent is strong from foaming capacity, foaming abundancy, and foaming aqueous rate is high, and liquid carry over is big；With excellent salt resistance, methanol tolerance, oil resistant performance；There is good compatibility with underground auxiliary agent, properties of product are highly stable, field test bubble lines up that power is very high, the pit shaft discharge opeing in natural gas extraction is applicable to, particularly with high temperature（100℃）, high condensate（≤50%）, methanol tolerance（≤30%）, high salinity（≤200000mg/L）Gas well can be achieved discharge opeing.
Description
Technical field
The present invention relates to a kind of solid foam water discharge agent for gas field, particularly a kind of solid of energy self-rising foam draining
Foaming water discharge agent, belongs to technical field of oilfield chemistry.
Background technology
With the Persisting exploitation in gas field, gas reservoir water yield and water outlet gas well number are in growing number of trend, Wellbore of Gas Wells product
The problems such as liquid and water outlet influence gas well are normally produced progressively shows；Gas well dewatering makes single phase gas seepage flow be changed into air water two-phase to ooze
Stream, not only causes gas phase permeability to reduce, while stratum energy is largely consumed, the hydrops reduction production pressure that can not be carried in pit shaft
Difference, causes gas well low yield or even stopping production, and Gas well dewatering and pit shaft hydrops have become the major reason of restriction gas well deliverability.With
Exploitation is goed deep into, and gas well quantity is more and more and most of gas well belongs to middle stripper well, this kind of well is because yield is relatively low, stratum goes out
Liquid is more and discontinuously causes that its own fluid-carrying capability is poor, and hydrops is serious in well；Even for the higher well of production capacity, because stratum goes out
Liquid is more or tubing string also occurs in that take the difficult situation of liquid greatly.The purpose of research foam drainage gas recovery is exactly to be accumulated to exclude pit shaft
Liquid, recovers the normal production of gas well.
Present invention is generally directed to above mentioned problem there is provided a kind of from foaming, the solid foam that liquid carry over is big, foam stability is good
Water discharge agent.In existing foaming water discharge agent, in Chinese Patent No. CN102634327A raw material proportioning be mainly surfactant 95~
105 parts, 3~7 parts of methylcellulose, wherein 5~10 parts of foam control agent, surfactant are by soapberry extract, imidazoline, ten
Dialkyl dimethyl glycine betaine is according to weight than 1~2：1~2：1~2 composition；Raw material is matched somebody with somebody in Chinese Patent No. CN101492599B
Than being mainly triethylene tetramine 5~10%, diethylenetriamine 10~20%, oleic acid 10~30%, glacial acetic acid 2~10%, Malaysia
Acid anhydrides 5~15%, the third acetic acid 5~10%；The present invention raw material proportioning be surfactant 40~50%, sodium carbonate 5~20%,
Sodium dihydrogen phosphate 40~55%, wherein surfactant include dodecyl ethyoxyl sulfobetaines 10~15%, ASEA（Fat
Fat alcohol sulfuric ester single ethanol ammonium salt）10~15%, LAS（Sodium n-alkylbenzenesulfonate）5~10%, ABS（Polypropylene tetramer benzene sulfonic acid
Sodium）5~10%, AEC（Laureth carboxylic acid sodium）5~10%；Present component is novel, asepsis environment-protecting.
The content of the invention
It is an object of the invention to develop solid foam water discharge agent and its system a kind of production suitable for natural gas extraction
Preparation Method, makes it have the features such as chance water dissolves from foaming, rapidly, foam stability is good, liquid carry over is big, is that natural gas extraction is carried
For a kind of solid foam water discharge agent.
A kind of solid foam water discharge agent of the present invention, is made up of the raw material of following mass percentage contents：Live on surface
Property agent 40~50%, sodium carbonate 5~20%, sodium dihydrogen phosphate 40~55%.
The mass percent that each raw material accounts for solid foam water discharge agent in described surfactant is：Dodecyl ethyoxyl
Sulfobetaines 10~15%, ASEA（Fatty alcohol sulfate single ethanol ammonium salt）10~15%, LAS（Sodium n-alkylbenzenesulfonate）
5~10%, ABS（Polypropylene tetramer benzene sulfonic acid sodium salt）5~10%, AEC（Laureth carboxylic acid sodium）5~10% compositions.
The effect of above-mentioned various raw material components：
Sodium carbonate and sodium dihydrogen phosphate play a part of from foaming and are molded；Dodecyl ethyoxyl sulfobetaines and
AESA has higher foaming power and excellent compatibility；ASEA, ABS and LAS have superior foam stability energy；AEC has
Good excellent salt resistance and methanol tolerance ability.
Relative to prior art, the beneficial effects of the present invention are：
1）The solid foam water discharge agent preparation method of the present invention is simple to operation.
2）The solid foam water discharge agent of the present invention has foaming certainly and both surfactants function that production is steeped jointly so that
Foaming abundancy, foaming aqueous rate is high, and liquid carry over is big.
3）Solid foam water discharge agent of the present invention has excellent salt resistance, methanol tolerance, the performance of oil resistant.
4）Solid foam water discharge agent of the present invention has good compatibility, is not chemically reacted with air-liquid component, scene
It is very high that experiment bubble lines up power.
Embodiment
Embodiment 1
The solid foam water discharge agent of the present embodiment, by mass percentage, by 10% dodecyl ethyoxyl sulfobetaines
Alkali, 15% ASEA（Fatty alcohol sulfate single ethanol ammonium salt）, 5% LAS（Sodium n-alkylbenzenesulfonate）, 5% ABS（Four poly- third
Alkene benzene sulfonic acid sodium salt）, 5% AEC（Laureth carboxylic acid sodium）, 10% sodium carbonate and 50% sodium dihydrogen phosphate.
According to People's Republic of China (PRC) oil and gas industry standard SY/T6465-2000, using Ross-Mile methods and dynamic
State foam strip water law.Ross-Mile methods are current most commonly used and degree of accuracy highest brbble test methods, and this experiment is adopted
Determined with Ross-Mile methods.
With thermostatic water-circulator bath by the preheating of Roche foam meter and constant temperature, YTY-30 solid foams are then weighed with electronic balance
Water discharge agent is placed in water bath with thermostatic control in beaker, and by sample liquid.Part sample liquid is drawn with minim pipette to rush along Roche foam meter tube wall
Wash, then sample liquid 50ml and put down along Roche foam meter tube wall, then test solution 200ml is drawn with 200ml minim pipettes and be placed in sieve
Family name's foam meter upper end center position, alignment liquid level vertically puts down test solution, then writes down the highest that foam rises in Roche foam meter
Scale, is the foaming power of the test specimen, unit is mm.
The properties of novel solid foaming water discharge agent prepared by above example are measured, specific data referring to
Table 1
The properties of the novel solid foaming water discharge agent of the various concentrations of table 1
As it can be seen from table 1 total salinity for 180000mg/L mineralized water in, drug concentration be 15% under conditions of,
Solid foam water discharge agent prepared by the present invention has good stability, and foam stability can reach 292mm, liquid carry over
Up to 243ml, condensate oil ability is up to 55%, and methanol tolerance ability can reach 45%.
2 operation instructions
1) dilution is not required to when using this product, is directly come into operation.
2) added amount of chemical can float according to pit shaft hydrops amount difference in the range of 1-3%.
The scope of application
The pit shaft discharge opeing in natural gas extraction is applicable to, particularly with high temperature（100℃）, high condensate（≤50%）, it is anti-
Methanol（≤30%）, high salinity（≤200000mg/L）Gas well can be achieved discharge opeing.
Claims (1)
1. a kind of solid foam water discharge agent for gas field, it is characterised in that：By the raw material components of following mass percentage contents：
Surfactant 40~50%, sodium carbonate 5~20%, sodium dihydrogen phosphate 40~55%；
Described surfactant is dodecyl ethyoxyl sulfobetaines, fatty alcohol sulfate single ethanol ammonium salt, straight chain alkane
Base benzene sulfonic acid sodium salt, polypropylene tetramer benzene sulfonic acid sodium salt and laureth carboxylic acid sodium mixture；
The mass percent that each raw material accounts for solid foam water discharge agent in described surfactant is：Dodecyl ethyoxyl sulfo group
Glycine betaine 10~15%, fatty alcohol sulfate monoethanol press salt 10~15%, sodium n-alkylbenzenesulfonate 5~10%, four poly- third
Alkene benzene sulfonic acid sodium salt 5~10%, laureth carboxylic acid sodium 5~10%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310345196.3A CN104342097B (en) | 2013-08-09 | 2013-08-09 | A kind of solid foam water discharge agent for gas field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310345196.3A CN104342097B (en) | 2013-08-09 | 2013-08-09 | A kind of solid foam water discharge agent for gas field |
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| CN104342097A CN104342097A (en) | 2015-02-11 |
| CN104342097B true CN104342097B (en) | 2017-08-04 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893702B (en) * | 2015-04-28 | 2017-09-01 | 中国石油天然气股份有限公司 | One kind is used to contain H2The foam discharging agent of the water-producing gas well water pumping gas production of S gases |
| CN105062453A (en) * | 2015-08-05 | 2015-11-18 | 扬州大学 | Solid foam water draining agent for gas field and preparation method thereof |
| CN106190080B (en) * | 2016-07-14 | 2019-02-12 | 西南石油大学 | A kind of spherical solid foam discharging agent for natural gas fluctuating horizontal well |
| CN107400505B (en) * | 2017-07-06 | 2020-11-24 | 中国石油天然气股份有限公司 | High-temperature solid foam scrubbing agent and preparation method thereof |
| CN109679617B (en) * | 2017-10-18 | 2021-07-30 | 中国石油化工股份有限公司 | Solid foam drainage agent composition suitable for ultra-deep gas well, preparation method and application |
| CN108728073A (en) * | 2018-07-06 | 2018-11-02 | 陕西延长石油(集团)有限责任公司研究院 | A kind of drain stick and the preparation method and application thereof containing condensate well |
| CN110144202B (en) * | 2019-06-14 | 2021-11-23 | 长江大学 | High-temperature high-pressure profile control and flooding long-acting foam and preparation method thereof |
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|---|---|---|---|---|
| US3516937A (en) * | 1967-05-15 | 1970-06-23 | Armour & Co | Sustained action detergent product containing encapsulated sodium tripolyphosphate |
| CN101671553A (en) * | 2009-09-28 | 2010-03-17 | 中国石油天然气股份有限公司 | Self-gas-production solid-foam liquor drainage ball of watered gas well |
| CN102504788A (en) * | 2011-10-25 | 2012-06-20 | 中国石油天然气股份有限公司 | Foaming agent suitable for oil-field development |
| CN102587865A (en) * | 2012-02-29 | 2012-07-18 | 西南石油大学 | Foam drainage gas recovery method for natural gas horizontal well |
| CN103087698A (en) * | 2013-01-18 | 2013-05-08 | 陕西驭腾实业有限公司 | Solid foamed drainage agent for natural gas well and preparation method of solid foamed drainage agent |
-
2013
- 2013-08-09 CN CN201310345196.3A patent/CN104342097B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3516937A (en) * | 1967-05-15 | 1970-06-23 | Armour & Co | Sustained action detergent product containing encapsulated sodium tripolyphosphate |
| CN101671553A (en) * | 2009-09-28 | 2010-03-17 | 中国石油天然气股份有限公司 | Self-gas-production solid-foam liquor drainage ball of watered gas well |
| CN102504788A (en) * | 2011-10-25 | 2012-06-20 | 中国石油天然气股份有限公司 | Foaming agent suitable for oil-field development |
| CN102587865A (en) * | 2012-02-29 | 2012-07-18 | 西南石油大学 | Foam drainage gas recovery method for natural gas horizontal well |
| CN103087698A (en) * | 2013-01-18 | 2013-05-08 | 陕西驭腾实业有限公司 | Solid foamed drainage agent for natural gas well and preparation method of solid foamed drainage agent |
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| 泡沫排水采气工艺技术在涩北气田的应用;许吉瑞 等;《青海石油》;20080930;第26卷(第3期);第35-40页 * |
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| CN104342097A (en) | 2015-02-11 |
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