CN105885807A - High-temperature-resistant emulsifier for drilling and preparation method of high-temperature-resistant emulsifier - Google Patents
High-temperature-resistant emulsifier for drilling and preparation method of high-temperature-resistant emulsifier Download PDFInfo
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- CN105885807A CN105885807A CN201610242827.2A CN201610242827A CN105885807A CN 105885807 A CN105885807 A CN 105885807A CN 201610242827 A CN201610242827 A CN 201610242827A CN 105885807 A CN105885807 A CN 105885807A
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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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
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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
- C09K8/02—Well-drilling compositions
- C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
- C09K8/36—Water-in-oil emulsions
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Abstract
The invention relates to a high-temperature-resistant emulsifier for drilling and a preparation method of the high-temperature-resistant emulsifier. The high-temperature-resistant emulsifier is prepared from raw materials and components of the raw materials in parts by weight as follows: 30-65 parts of fatty acid, 5-15 parts of polyamine, 5-15 parts of carboxylic acid, 5-15 parts of an additive and 15-35 parts of a diluent. Compared with the prior art, the high-temperature-resistant emulsifier has the characteristics of environment friendliness, resistance to high temperature as high as 180 DEG C, low addition and good emulsion stability.
Description
Technical field
The present invention relates to petroleum drilling technology field, a kind of high temperature resistant emulsion drilling agent and preparation method thereof.
Background technology
Drilling fluid is as the important component part of drilling engineering, and its performance is directly connected to deep-well, the drilling quality of ultradeep well, drilling cost and drilling period.Relative to water-base drilling fluid; oil base drilling fluid has stronger anti-collapse inhibition, lubricity and good reservoir protection performance; especially can meet strong retraction and high temperature, superhigh temperature stratum, or need to bore that big displacement exceptional well and seaborne horizontal well etc. are special turns drilling well needs.
Oil base drilling fluid, also known as Water-In-Oil drilling fluid, water in oil emulsion drilling fluid is with water as dispersion phase, oil is continuous phase, and add the emulsion system that appropriate emulsifying agent, wetting agent, organoclay and heavy weight additive etc. is formed, in order to form stable water in oil emulsion drilling fluid, it is necessary to correct selection and use emulsifying agent, emulsifying agent is the key factor determining emulsion stability, and the effect of emulsifying agent has: 1) have the adsorbed film of some strength in oil-water interfaces formation；2) oil water interfacial tension is reduced；3) outer phase viscosity is increased.Above three aspects all can stop dispersant liquid drop polymerization to become big, so that emulsion keeps stable, therefore, emulsifying agent is to affect water in oil emulsion drilling fluid performance and the key factor of using effect.
Current domestic oil base drilling fluid emulsifying agent is mostly dehydrating sorbitol monooleate (Span-80) or derivatives thereof, the shortcoming of its maximum is that heat-resisting quantity is poor, seriously constrain the application at high temperature deep well of the domestic oil base drilling fluid technology, for solving the problems referred to above, also occurring in that some high temperature resistance emulsifying agents on market, the most generally there is the problem that production cost is high, addition is big in these emulsifying agents.
Summary of the invention
The present invention proposes a kind of high temperature resistant emulsion drilling agent and preparation method thereof.
The technical scheme is that and be achieved in that: a kind of high temperature resistant emulsion drilling agent, it is characterised in that include the raw material of following parts by weight: fatty acid 30 ~ 65 parts；Polyamines 5 ~ 15 parts；Carboxylic acid 5 ~ 15 parts；Additive 5 ~ 15 parts；Diluent 15 ~ 35 parts.
As preferred technical scheme, described fatty acid is any one or more in ready denier oil acid, rosin acid, adipic acid, octanoic acid, capric acid, lauric acid, myristic acid, Palmic acid, oleic acid, stearic acid, arachidic acid, mountain Yu acid, lignin acid and eicosanoid.
As preferred technical scheme, described polyamines is diethylenetriamine, triethylene tetramine, TEPA, polyethylene polyamine, hydrogenated tallow amine, 18-amine., oil base primary amine, N-oil base-1, any one or more in 3-trimethylene diamidogen, N-Adeps Bovis seu Bubali base-1,3-trimethylene diamidogen and N-Adeps Bovis seu Bubali base dipropylenetriamine.
As preferred technical scheme, described carboxylic acid is any one or more in citric acid, maleic acid, anhydride diethylene glycol, glutaric anhydride and maleic anhydride.
As preferred technical scheme, described additive is any one or more in diethylene glycol, 2,2'-ethylenedioxybis(ethanol). and tetraethylene glycol (TEG).
As preferred technical scheme, described diluent is any one or more in diethylene glycol high-boiling components, diglycolamine high-boiling components, high-boiling-point morpholinium compound, plant asphalt.
The preparation method of a kind of high temperature resistant emulsion drilling agent, comprises the following steps:
1) fatty acid of 30 ~ 65 weight portions and the polyamines of 5 ~ 15 weight portions are added to reactor, stir and be warming up to 120 ~ 180 DEG C, reacting 2 ~ 4h, obtain the first mixed liquor；
2) in the first mixed liquor that step 1) obtains, add the carboxylic acid of 5 ~ 15 weight portions and the additive of 5 ~ 15 weight portions, and control the temperature in reactor to 115 ~ 170 DEG C, stirring, react 1.5 ~ 3h, obtain the second mixed solution；
3) to step 2) the second mixed solution of obtaining adds the diluent of 15 ~ 35 weight portions, controlling temperature is 50 ~ 110 DEG C, and stirring is reacted 0.5 ~ 1.5h, obtained emulsifying agent finished product.
Owing to have employed technique scheme, the present invention has a beneficial effect highlighted below:
1, emulsifying agent environmental protection of the present invention, high temperature resistant 180 DEG C, efficiently solve emulsifying agent high temperature degradation in drilling fluid system, the drilling fluid system breakdown of emulsion that causes, rheological characteristic are deteriorated and the problem such as barite sedimentation.
2, fatty acid of the present invention, polyamines, carboxylic acid, additive, diluent coordinate that prepared emulsifier stability is strong, filter loss is low, addition is little jointly, it is simple to promotion and application.
3, use diethylene glycol high-boiling components, diglycolamine high-boiling components, high-boiling-point morpholinium compound, plant asphalt etc. as diluent, on the one hand play diluting effect, and the effect of co-emulsifier can be played, improve emulsion stability, on the other hand the purpose of twice laid, environmental protection, reduction cost are realized.
4, the raw material multiselect of synthetic emulsifier is from abundance, the natural industrial chemicals of low-cost regenerative, reduces emulsifying agent production cost.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment 1
A kind of high temperature resistant emulsion drilling agent, including the raw material of following parts by weight: ready denier oil acid 30 parts；Diethylenetriamine 5 parts；Citric acid 5 parts；Diethylene glycol 5 parts；Diglycolamine high-boiling components 15 parts.
The preparation method of a kind of high temperature resistant emulsion drilling agent, comprises the following steps:
1) ready denier oil acid of 30 weight portions and the diethylenetriamine of 5 weight portions are added to reactor, stir and be warming up to 120 DEG C, reacting 4h, obtain the first mixed liquor；
2) in the first mixed liquor that step 1) obtains, add citric acid and the diethylene glycol of 5 weight portions of 5 weight portions, and control the temperature in reactor to 115 DEG C, stirring, react 3h, obtain the second mixed solution；
3) to step 2) the second mixed solution of obtaining adds the diglycolamine high-boiling components of 15 weight portions, controlling temperature is 50 DEG C, and stirring is reacted 1.5h, obtained emulsifying agent finished product.
Embodiment 2
A kind of high temperature resistant emulsion drilling agent, including the raw material of following parts by weight: rosin acid 65 parts；Hydrogenated tallow amine 15 parts；Maleic acid 15 parts；2,2'-ethylenedioxybis(ethanol). 15 parts；High-boiling-point morpholinium compound 35 parts.
The preparation method of a kind of high temperature resistant emulsion drilling agent, comprises the following steps:
1) rosin acid of 65 weight portions and the hydrogenated tallow amine of 15 weight portions are added to reactor, stir and be warming up to 180 DEG C, reacting 2h, obtain the first mixed liquor；
2) in the first mixed liquor that step 1) obtains, add maleic acid and the 2,2'-ethylenedioxybis(ethanol). of 15 weight portions of 15 weight portions, and control the temperature in reactor to 170 DEG C, stirring, react 1.5h, obtain the second mixed solution；
3) to step 2) the second mixed solution of obtaining adds the high-boiling-point morpholinium compound of 35 weight portions, controlling temperature is 110 DEG C, and stirring is reacted 0.5h, obtained emulsifying agent finished product.
Embodiment 3
A kind of high temperature resistant emulsion drilling agent, including the raw material of following parts by weight: myristic acid 40 parts；Oil base primary amine 10 parts；Anhydride diethylene glycol 10 parts；Tetraethylene glycol (TEG) 10 parts；Plant asphalt 25 parts.
The preparation method of a kind of high temperature resistant emulsion drilling agent, comprises the following steps:
1) myristic acid of 40 weight portions and the oil base primary amine of 10 weight portions are added to reactor, stir and be warming up to 140 DEG C, reacting 3.5h, obtain the first mixed liquor；
2) in the first mixed liquor that step 1) obtains, add anhydride diethylene glycol and the tetraethylene glycol (TEG) of 10 weight portions of 10 weight portions, and control the temperature in reactor to 130 DEG C, stirring, react 2.5h, obtain the second mixed solution；
3) to step 2) the second mixed solution of obtaining adds the plant asphalt of 25 weight portions, controlling temperature is 70 DEG C, and stirring is reacted 1h, obtained emulsifying agent finished product.
Embodiment 4
A kind of high temperature resistant emulsion drilling agent, including the raw material of following parts by weight: Palmic acid 55 parts；N-oil base-1,3-trimethylene diamidogen 10 parts；Glutaric anhydride 10 parts；Tetraethylene glycol (TEG) 10 parts；Diethylene glycol high-boiling components 20 parts.
The preparation method of a kind of high temperature resistant emulsion drilling agent, comprises the following steps:
1) by Palmic acid and N-oil base-1 of 10 weight portions of 55 weight portions, 3-trimethylene diamidogen adds to reactor, stirs and is warming up to 160 DEG C, reacts 2.5h, obtains the first mixed liquor；
2) in the first mixed liquor that step 1) obtains, add glutaric anhydride and the tetraethylene glycol (TEG) of 10 weight portions of 10 weight portions, and control the temperature in reactor to 150 DEG C, stirring, react 2h, obtain the second mixed solution；
3) to step 2) the second mixed solution of obtaining adds the diethylene glycol high-boiling components of 20 weight portions, controlling temperature is 90 DEG C, and stirring is reacted 1h, obtained emulsifying agent finished product.
Performance evaluation to emulsifying agent
Prepare drilling fluid according to the following formulation:
Drilling fluid 1: bavin Water-In-Oil (profit volume ratio is 90:10) :+15 parts of organoclays of+20 parts of emulsifying agents of 500 parts of diesel oil+160 parts of CaCl of+10 parts of calcium oxide2+ 750 portions of barite+fluid loss additives of aqueous solution (concentration 25%) 10 parts；
Drilling fluid 2: bavin Water-In-Oil (profit volume ratio is 80:20) :+15 parts of organoclays of+20 parts of emulsifying agents of 500 parts of diesel oil+160 parts of CaCl of+10 parts of calcium oxide2+ 750 portions of barite+fluid loss additives of aqueous solution (concentration 25%) 10 parts；
Drilling fluid 3: bavin Water-In-Oil (profit volume ratio is 70:30) :+15 parts of organoclays of+20 parts of emulsifying agents of 500 parts of diesel oil+160 parts of CaCl of+10 parts of calcium oxide2+ 750 portions of barite+fluid loss additives of aqueous solution (concentration 25%) 10 parts；
Drilling fluid 4: bavin Water-In-Oil (profit volume ratio is 90:10) :+15 parts of organoclays of+20 parts of Arlacel-80s of 500 parts of diesel oil+160 parts of CaCl of+10 parts of calcium oxide2+ 750 portions of barite+fluid loss additives of aqueous solution (concentration 25%) 10 parts；
Drilling fluid 5: bavin Water-In-Oil (profit volume ratio is 90:10) :+15 parts of organoclays of+12 parts of emulsifying agents of 500 parts of diesel oil+160 parts of CaCl of+10 parts of calcium oxide2+ 750 portions of barite+fluid loss additives of aqueous solution (concentration 25%) 10 parts；
Embodiment 1-4 gained emulsifying agent is separately in drilling fluid 1, and obtain four groups of drilling fluids 1 are put into heat rolling 16 hours in 180 DEG C of roller heating stoves, the emulsion-breaking voltage before test heat rolling and after heat rolling and filter loss.
As seen from the above table, the change before high temperature and after high temperature of the emulsion-breaking voltage of embodiment 1-4 gained emulsifying agent is little, filter loss, all within 10ml, illustrates that embodiment 1-4 gained emulsifying agent is respectively provided with good emulsion stability and heat-resisting quantity, and embodiment 1-4 gained emulsifying agent no significant difference.
Embodiment 3 gained emulsifying agent is applied in drilling fluid 1, drilling fluid 2, drilling fluid 3, drilling fluid 5, Arlacel-80 is applied in drilling fluid 4, and by drilling fluid 1, drilling fluid 2, drilling fluid 3, drilling fluid 4, drilling fluid 5, put into heat rolling 16 hours in 180 DEG C of roller heating stoves, the emulsion-breaking voltage before test heat rolling and after heat rolling and filter loss.
As seen from the above table, drilling fluid 1, drilling fluid 2, the emulsion-breaking voltage of drilling fluid 3 and filter loss are all more or less the same, and emulsifying agent the most of the present invention all can play preferable emulsifying effectiveness in the drilling fluid of different oil-water ratios；Drilling fluid 1, drilling fluid 2, drilling fluid 3 emulsion-breaking voltage apparently higher than drilling fluid 4, drilling fluid 1, drilling fluid 2, the filter loss of drilling fluid 3 are significantly lower than drilling fluid 4, same amount of emulsifying agent of the present invention and Arlacel-80 are applied in drilling fluid, and heat-resisting quantity and the emulsion stability of emulsifying agent of the present invention are significantly better than that Arlacel-80；The emulsion-breaking voltage of drilling fluid 5 is with filter loss compared with drilling fluid 4, and diversity is little, i.e. reaches identical emulsifying effectiveness, and emulsifying agent addition of the present invention is significantly less than the addition of Arlacel-80.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (7)
1. a high temperature resistant emulsion drilling agent, it is characterised in that include following parts by weight
Raw material: fatty acid 30～65 parts；Polyamines 5～15 parts；Carboxylic acid 5～15 parts；Additive 5～15
Part；Diluent 15～35 parts.
2. according to the high temperature resistant emulsion drilling agent of the one described in claim 1, it is characterised in that:
Described fatty acid be ready denier oil acid, rosin acid, adipic acid, octanoic acid, capric acid, lauric acid,
Myristic acid, Palmic acid, oleic acid, stearic acid, arachidic acid, mountain Yu acid, lignin acid and class
Any one or more in arachidic acid.
3. according to the high temperature resistant emulsion drilling agent of the one described in claim 1, it is characterised in that:
Described polyamines is diethylenetriamine, triethylene tetramine, TEPA, polyethylene polyamine, hydrogen
Change tallow amine, 18-amine., oil base primary amine, N-oil base-1,3-trimethylene diamidogen, N-Adeps Bovis seu Bubali base-1,3-
Any one or more in trimethylene diamidogen and N-Adeps Bovis seu Bubali base dipropylenetriamine.
4. according to the high temperature resistant emulsion drilling agent of the one described in claim 1, it is characterised in that:
Described carboxylic acid is in citric acid, maleic acid, anhydride diethylene glycol, glutaric anhydride and maleic anhydride
Any one or more.
5. according to the high temperature resistant emulsion drilling agent of the one described in claim 1, it is characterised in that:
Described additive is any one or more in diethylene glycol, 2,2'-ethylenedioxybis(ethanol). and tetraethylene glycol (TEG).
6. according to the high temperature resistant emulsion drilling agent of the one described in claim 1, it is characterised in that:
Described diluent is diethylene glycol high-boiling components, diglycolamine high-boiling components, high-boiling-point morpholinium compound, plant drip
Any one or more in green grass or young crops.
7. according to a kind of high temperature resistant emulsion drilling agent described in claim 1-6 any one
Preparation method, comprises the following steps:
1) fatty acid of 30～65 weight portions and the polyamines of 5～15 weight portions are added to reaction
In still, stir and be warming up to 120～180 DEG C, reacting 2～4h, obtain the first mixed liquor；
2) to step 1) the first mixed liquor of obtaining adds 5～15 weight portions carboxylic acid and
The additive of 5～15 weight portions, and control the temperature in reactor to 115～170 DEG C, stirring,
Reaction 1.5～3h, obtains the second mixed solution；
3) to step 2) the second mixed solution of obtaining adds the dilution of 15～35 weight portions
Agent, controlling temperature is 50～110 DEG C, and stirring is reacted 0.5～1.5h, obtained emulsifying agent finished product.
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| CN106520106A (en) * | 2016-10-11 | 2017-03-22 | 常州市鼎日环保科技有限公司 | Preparation method for viscosity reducer for thickened oil |
| CN106893566A (en) * | 2017-02-06 | 2017-06-27 | 中国石油天然气集团公司 | A kind of emulsifying agent of oil-base mud and preparation method thereof |
| CN107011877A (en) * | 2016-03-04 | 2017-08-04 | 中国石油天然气集团公司 | A kind of oil-base mud thinner and viscosity reducing process |
| CN107325796A (en) * | 2017-06-07 | 2017-11-07 | 常州豫春化工有限公司 | A kind of preparation method of drilling fluid emulsifying agent |
| CN107828391A (en) * | 2017-12-07 | 2018-03-23 | 联技精细材料(珠海)有限公司 | A kind of high temperature emulsifying agent applied to oil base drilling fluid and preparation method thereof |
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| CN109971441A (en) * | 2019-04-15 | 2019-07-05 | 西南石油大学 | A kind of interpenetrating composite, preparation method and drilling fluid containing the microemulsion and preparation method thereof |
| CN110564386A (en) * | 2019-06-10 | 2019-12-13 | 北京大学 | Oil-water emulsion emulsifier composition |
| CN111100288A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Vegetable oil asphalt amide resin, preparation method thereof and application of vegetable oil asphalt amide resin as sand control agent |
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| CN106520106A (en) * | 2016-10-11 | 2017-03-22 | 常州市鼎日环保科技有限公司 | Preparation method for viscosity reducer for thickened oil |
| CN106893566A (en) * | 2017-02-06 | 2017-06-27 | 中国石油天然气集团公司 | A kind of emulsifying agent of oil-base mud and preparation method thereof |
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| CN108034413B (en) * | 2017-12-01 | 2020-07-07 | 长江大学 | Low oil-water ratio oil-based drilling fluid |
| CN107828391A (en) * | 2017-12-07 | 2018-03-23 | 联技精细材料(珠海)有限公司 | A kind of high temperature emulsifying agent applied to oil base drilling fluid and preparation method thereof |
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| CN109971441A (en) * | 2019-04-15 | 2019-07-05 | 西南石油大学 | A kind of interpenetrating composite, preparation method and drilling fluid containing the microemulsion and preparation method thereof |
| CN110564386A (en) * | 2019-06-10 | 2019-12-13 | 北京大学 | Oil-water emulsion emulsifier composition |
| CN115894894A (en) * | 2022-11-10 | 2023-04-04 | 宇昂科技有限公司 | Petroleum resin emulsifier and preparation method and application thereof |
| CN115894894B (en) * | 2022-11-10 | 2023-12-01 | 宇昂科技有限公司 | Petroleum resin emulsifier and preparation method and application thereof |
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Application publication date: 20160824 |