CN107814738A - A kind of high density oil base drilling fluid flow pattern regulator, its preparation method and application - Google Patents
A kind of high density oil base drilling fluid flow pattern regulator, its preparation method and application Download PDFInfo
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- CN107814738A CN107814738A CN201610825833.0A CN201610825833A CN107814738A CN 107814738 A CN107814738 A CN 107814738A CN 201610825833 A CN201610825833 A CN 201610825833A CN 107814738 A CN107814738 A CN 107814738A
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/34—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups
- C07C233/35—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
- C07C233/36—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of an acyclic saturated carbon skeleton
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/12—Preparation of carboxylic acid amides by reactions not involving the formation of carboxamide groups
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/34—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups
- C07C233/35—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
- C07C233/38—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/32—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of salts of sulfonic acids
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/02—Sulfonic acids having sulfo groups bound to acyclic carbon atoms
- C07C309/03—Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C309/13—Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
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- 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
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- 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
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Abstract
The invention provides a kind of high density oil base drilling fluid flow pattern regulator, its preparation method and application, the flow pattern is adjusted shown in formula I, R1Selected from C8~alkenyl of 22 alkyl or C17~21.The flow pattern, which is adjusted, to be had wetting and dispersing concurrently and improves the effect of drilling fluid shear force, the surface nature of weighting material can be made by hydrophilic conversion to be lipophile, the plastic viscosity of drilling fluid is reduced, while can be acted synergistically with organoclay and improve the yield value of drilling fluid at high temperature, ensures good suspension stability.The flow pattern regulator is more than 80% to the wettability power of barite, is 9 in oil-water ratio when its dosage is 2%:1st, density 2.62g/cm3Oil base drilling fluid in, after 180 DEG C/16h agings, drilling fluid plastic viscosity ＜ 80mPas can be made, combination property is good.In addition, the present invention has the characteristics that synthesis step is simple and reaction condition is gentle, beneficial to large-scale production and popularization and application.
Description
Technical field
The present invention relates to oil base drilling fluid chemicals technical field, more particularly to a kind of high density oil base drilling fluid to flow
Type conditioning agent, its preparation method and application.
Background technology
In recent years, as the large-scale development of shale gas, domestic oil base drilling fluid are developed rapidly, research applies
Serial oil base drilling fluid inorganic agent, has substantially met density in 2.2g/cm3Following oil base drilling fluid performance requirement.But with
Petroleum exploration and development gradually develops to deep and bad ground, and hp-ht well gradually increases, to VHD oil base drilling fluid
(density>2.2g/cm3) there is greater demand.VHD oil base drilling fluid solid concentration is high, and density reaches 2.5g/cm3When, aggravate
The volume fraction of material is 55% or so, and surface is hydrophily.Limited by existing inorganic agent species and dosage, VHD oil
Base drilling fluid is poor there is low temperature flow, shear force low free settling during high temperature, and rheological characteristic can not be simultaneous with high temperature and high pre ssure filtration
The problems such as Gu.
It is to add wetting agent generally to solve one of method of problems, changes weighting material wettability of the surface
Become, lipophile is changed into by hydrophily, so as to which they can suspend, spread out in oil base drilling fluid, reduce drilling fluid
Viscosity, improve the rheological characteristic of oil base drilling fluid.But at a high temperature of this method the problem of shear force low suspension stability still not
Can effectively be solved, and it is ineffective in VHD oil base drilling fluid.In addition, the synthesis of wetting agent walks under normal circumstances
It is rapid cumbersome, it is unfavorable for large-scale production and popularization and application.
Another method is that flow pattern regulator is added in oil base drilling fluid, to improve the rheological characteristic of drilling fluid.Such as
Publication No. CN103666414A Chinese patent literature discloses a kind of mineral oil oil base drilling fluid Polyamide amine flow pattern
Conditioning agent and preparation method thereof, the flow pattern regulator are that acyl is carried out under the conditions of 120~160 DEG C by dimer (fatty acid) yl and polyamine
Aminating reaction, after the completion of reaction, by obtained product and solvent according to mass ratio 0.5~1.5:1 is well mixed obtained.This stream
Type conditioning agent molecular weight is big, and active function groups are more, can form multiple spot absorption, it is difficult to which attached from organoclay surface desorption, still, it is not
Suitable for high density oil base drilling fluid.
The content of the invention
In view of this, the application provides a kind of high density oil base drilling fluid flow pattern regulator, its preparation method and application,
Flow pattern regulator provided by the invention has wetting and dispersing concurrently and improves the effect of drilling fluid shear force, can be used as high density oil base drilling well
Liquid stream type is adjusted.
The present invention provides a kind of high density oil base drilling fluid flow pattern regulator, and it has Formulas I structure：
In Formulas I, R1Selected from C8~alkenyl of 22 alkyl or C17~21；
R2For methylene orR3For-(CH2)3- or
Y- is-COO- or-SO3-。
Preferably, R1Selected from octyl group, decyl, undecyl, tridecyl, myristyl, cetyl, heptadecyl or
CH3(CH2)m- CH=CH- (CH2)n-CH2-, wherein, m 7, n are 6 or 10.
The present invention provides a kind of preparation method of high density oil base drilling fluid flow pattern regulator, comprises the following steps：
Long chain hydrocarbon groups amide groups tertiary amine and quaternizing agent are reacted in a solvent, obtain high density oil base drilling fluid
Use flow pattern regulator；
The long chain hydrocarbon groups amide groups tertiary amine has Formula II structure：
The quaternizing agent has formula III structure：
X-R2- Y-Na formula IIIs；
The high density oil base drilling fluid flow pattern regulator has Formulas I structure：
Wherein, R1Selected from C8~alkenyl of 22 alkyl or C17~21；
R2For methylene orR3For-(CH2)3- or
X is selected from halogen；Y-For-COO-Or SO3 -。
Preferably, the long chain hydrocarbon groups amide groups tertiary amine is octyl group amidopropyl dimethylamine, decyl amidopropyl two
Methylamine, lauryl amidopropyl dimethylamine, myristyl amide base diemethylamine, hexadecyl amide base dimethylamine
Amine, oleamide base diemethylamine, stearamidopropyl dimethylamine, Cocamidopropyl dimethylamine or erucyl amide base
Diemethylamine.
Preferably, the solvent is water or the mixture formed by organic solvent and water.
Preferably, the organic solvent is alcohol organic solvent.
Preferably, the mass ratio of the alcohol organic solvent and water is 0.1~5：10.
Preferably, the temperature of the reaction is 75~85 DEG C.
The present invention provides a kind of high density oil base drilling fluid, including base oil and inorganic agent, wherein, the inorganic agent includes upper
Flow pattern regulator described in text.
Preferably, the dosage of the flow pattern regulator is 1~5 (w/v) % of base oil.
Compared with prior art, the present invention uses chain alkyl or eneamide base tertiary amine and quaternizing agent, through a step
Reaction, the betaine type amphoteric ionic surface active agent shown in production I, it is adjusted as high density oil base drilling fluid with flow pattern
(section) agent, have wetting and dispersing concurrently and improve the effect of drilling fluid shear force, the surface nature of weighting material can be made by hydrophilic conversion
For lipophile, the plastic viscosity of drilling fluid is reduced, while can be acted synergistically with organoclay and be improved drilling fluid at high temperature dynamic and cut
Power, ensure good suspension stability, so as to overcome existing wetting agent shear force under high density oil base drilling fluid high temperature
It is low, be difficult to ensure that drilling fluid suspension stability, and existing flow pattern regulator sticks in high density oil base drilling fluid and cuts big, rheology
The shortcomings that property difference.Test result indicates that gained flow pattern regulator is more than 80% to the wettability power of barite, when its dosage is 2%
When, it is 9 in oil-water ratio:1st, density 2.62g/cm3Oil base drilling fluid in, after 180 DEG C/16h agings, drilling fluid can be moulded
Property viscosity is good in below 80mPas, combination property.
In addition, the present invention has the characteristics that synthesis step is simple, reaction condition is gentle and properties of product advantage protrudes, profit
In large-scale production and popularization and application.
Brief description of the drawings
Fig. 1 is the infrared spectrogram of the products obtained therefrom of the embodiment of the present invention 1；
Fig. 2 is the differential scanning thermometric analysis figure of the products obtained therefrom of the embodiment of the present invention 1.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
The invention provides a kind of high density oil base drilling fluid flow pattern regulator, and it has Formulas I structure：
In Formulas I, R1Selected from C8~alkenyl of 22 alkyl or C17~21；
R2For methylene orR3For-(CH2)3- or
Y-For-COO-Or-SO3 -。
Flow pattern regulator provided by the invention not only has the function that wetting and dispersing, and can improve drilling fluid shear force, fits
For high density oil base drilling fluid.
The structure of flow pattern regulator provided by the invention shown in formula I, including chain alkyl or alkenyl, amide groups and quaternary ammonium
The structures such as change, it is in the nature betaine type amphoteric surfac-tant, and the surface nature that can make weighting material is by hydrophilic conversion
Lipophile, the plastic viscosity of drilling fluid is reduced, while can be acted synergistically with organoclay and improve the yield value of drilling fluid at high temperature,
Ensure good suspension stability.
In Formulas I, R1Selected from C8~alkenyl of 22 alkyl or C17~21, it preferably is selected from the alkyl of C8~22.Wherein, C8~22
Alkyl is the alkyl that carbon atom number is 8~22, preferably straight chained alkyl, such as octyl group, decyl, undecyl, tridecyl, ten
Tetraalkyl, cetyl, heptadecyl (carbon number is 17 straight chained alkyl).The alkenyl of the C17~21 is carbon atom number
For 17~21 alkenyl, preferably single degree of unsaturation alkenyl.In some embodiments of the invention, R1For CH3(CH2)m- CH=
CH-(CH2)n-CH2-, wherein, m 7, n are 6 or 10.
In Formulas I, Y-For-COO-Or-SO3 -, it is preferably-COO-；That is Y is carboxyl (- COO-) or sulfonic group (- SO3-)。
In Formulas I, R2For methylene orPreferably methylene (- CH2-)。
In some embodiments of the invention, R1For heptadecyl；Y-For-COO-；R2For methylene；R3ForIn some embodiments of the invention, R1For octyl group；Y-For-SO3；R2For
R3For-(CH2)3-.In other embodiments of the present invention, R1For CH3(CH2)m- CH=CH- (CH2)n-CH2-, wherein, m is
7, n 6；Y-For-SO3；R2ForR3For-(CH2)3-。
In embodiments of the present invention, the high density oil base drilling fluid flow pattern regulator can be faint yellow to white liquid
Product.The flow pattern regulator starts to decompose at 185.3 DEG C；Weight-loss ratio is 5.42% within 250 DEG C, good thermal stability.With
Mass fraction meter, the solid content that the flow pattern is adjusted can be 20~50%.
The invention provides a kind of preparation method of high density oil base drilling fluid flow pattern regulator, including：
Long chain hydrocarbon groups amide groups tertiary amine and quaternizing agent are reacted in a solvent, obtain high density oil base drilling fluid
Use flow pattern regulator；
The long chain hydrocarbon groups amide groups tertiary amine has Formula II structure：
The quaternizing agent has formula III structure：
X-R2- Y-Na formula IIIs；
The high density oil base drilling fluid flow pattern regulator has Formulas I structure：
Wherein, R1Selected from C8~alkenyl of 22 alkyl or C17~21；
R2For methylene orR3For-(CH2)3- or
X is selected from halogen；Y-For-COO-Or SO3 -。
The preparation method of flow pattern regulator provided by the invention has that synthesis step is simple, reaction condition is gentle and product
The features such as performance advantage protrudes, beneficial to large-scale production and popularization and application.
The embodiment of the present invention preferably mixes long chain hydrocarbon groups amide groups ertiary amine solution with quaternizing agent solution, carries out anti-
Should, obtain high density oil base drilling fluid flow pattern regulator product.
The present invention is using long chain hydrocarbon groups amide groups tertiary amine as raw material, and its structure is as shown in Formula II.In Formula II, R1And R3Content
As previously described.The long chain hydrocarbon groups amide groups tertiary amine full name long chain hydrocarbon groups amidopropyl dimethylamine, referred to as long chain hydrocarbon groups acyl
Amine diemethylamine；It can be long-chain alkylamide base tertiary amine or long alkenyl amide base tertiary amine.The present invention's
In preferred embodiment, the long chain hydrocarbon groups amide groups tertiary amine is octyl group amidopropyl dimethylamine, decyl amidopropyl diformazan
Amine, lauryl amidopropyl dimethylamine, myristyl amide base diemethylamine, hexadecyl amide base diemethylamine,
Oleamide base diemethylamine, stearamidopropyl dimethylamine, Cocamidopropyl dimethylamine or erucyl amide base third
Base dimethylamine, preferably octyl group amidopropyl dimethylamine, myristyl amide base diemethylamine, hexadecyl amide base third
Base dimethylamine or stearamidopropyl dimethylamine.
The present invention is not particularly limited to the source of the long chain hydrocarbon groups amide groups tertiary amine, can be prepared, can also
Using commercial goods.The embodiment of the present invention can weigh a certain amount of long chain hydrocarbon groups amide groups tertiary amine, be dissolved in solvent, preferably
Stirring and dissolving, obtain long chain hydrocarbon groups amide groups ertiary amine solution.
Wherein, the mass ratio of the long chain hydrocarbon groups amide groups tertiary amine and solvent can be (10~35)：(20~50), it is preferably
(10.72~33.04)：(25~40).The solvent is preferably water or the mixture formed by organic solvent and water.In the present invention
In embodiment, the mixture formed by organic solvent and water is the mixture of organic solvent-water, and it is mixed solvent；Its
The mass ratio of middle organic solvent and water is preferably 0.1~5：10.In a preferred embodiment of the invention, the organic solvent is alcohol
Class organic solvent, can be the one or more in ethanol, isopropanol and n-butanol, it is preferred to use any one alcohol；The alcohol
The mass ratio of class organic solvent and water can be 0.1~5：10.
The present invention is reacted using quaternizing agent with the long chain hydrocarbon groups amide groups tertiary amine, and the quaternizing agent is
X-R2- Y-Na, i.e., as shown in formula III.Wherein, R2With Y content as previously described.X is selected from halogen, such as fluorine, chlorine, bromine, preferably chlorine
Or bromine.In embodiments of the present invention, the quaternizing agent can be sodium chloroacetate, bromoacetic acid sodium or 3- chlorine-2-hydroxyl propane sulfonic acid
Sodium.
The present invention is not particularly limited to the source of the quaternizing agent, using commercially available prod.The present invention is implemented
Example can weigh a certain amount of quaternizing agent, be dissolved in solvent, obtain quaternizing agent solution.Wherein, it is described quaternized
The mass ratio of reagent and solvent can be (6~25)：(20~50), it is preferably (6.78~23.21)：(25~40).It is and described molten
The content of agent species is as it was previously stated, will not be repeated here.
Long chain hydrocarbon groups amide groups ertiary amine solution first can be placed in reaction vessel by the embodiment of the present invention, then be added quaternized
Reagent solution, preferably reacted under conditions of stirring, obtain high density oil base drilling fluid flow pattern regulator.Wherein, institute
The temperature for stating reaction is preferably 75~85 DEG C；The time of the reaction is preferably 4h~10h.The present invention preferably will be described quaternized
Reagent solution is instilled in long chain hydrocarbon groups amide groups ertiary amine solution, such as uses dropping funel, is carried out with 2~5 drops/sec of slow speed
It is added dropwise.After being added dropwise, continue to stir 4h~8h, stop reaction, can obtain faint yellow to white liquid product, as high density
Oil base drilling fluid flow pattern regulator.In terms of mass fraction, the solid content that the flow pattern is adjusted can be 20~50%.
The embodiment of the present invention uses chain alkyl or eneamide base tertiary amine and quaternizing agent, using water or alcohol-water to be molten
Agent, through single step reaction, the betaine type amphoteric ionic surface active agent shown in production I.The product that the present invention is prepared is simultaneous
Have wetting and dispersing and improve the effect of drilling fluid shear force, with flow pattern (section) agent can be adjusted to use as high density oil base drilling fluid.This
Outside, synthesis step of the present invention is simple, and reaction condition is gentle, beneficial to large-scale production and popularization and application.
Above-mentioned flow pattern regulator can be applied in oil base drilling fluid by the present invention, the high density that is particularly suitable for use in oil base drilling well
Liquid.The embodiments of the invention provide a kind of high density oil base drilling fluid, including base oil and inorganic agent, wherein, the inorganic agent bag
Include flow pattern regulator described above.
In embodiments of the present invention, the density of the high density oil base drilling fluid can be 2.2~2.62g/m3., the height
Density oil base drilling fluid includes base oil, can use commercially available 0#White oil or 5#Diesel oil.
The high density oil base drilling fluid includes inorganic agent, and the inorganic agent includes flow pattern regulator described above.
In the preferred embodiments of the present invention, the dosage of the flow pattern regulator is 1~5 (w/v) %, preferably 2~3 (w/ of base oil
V) %.In embodiments of the present invention, the quality of each inorganic agent is weighed on the basis of the volume of base oil, such as in 200mL base oils
The flow pattern regulator that dosage is 1~5% is added, exactly adds 1~10g flow pattern regulators；The dosage percentage is represented by (w/
V) %, % can be also abbreviated as.
In embodiments of the present invention, the inorganic agent includes weighting material, preferably barite, is mainly used in adjusting drilling well
The density of liquid.On the basis of base oil volume, the inorganic agent may include 2~3% organoclay, ensure that drilling fluid has necessarily
Shear force.The inorganic agent may include 2~4% alkalinity regulator, and it preferably is selected from least one of calcium oxide and magnesia, more
Preferably calcium oxide (popular name quick lime).The inorganic agent may include 5~6% emulsifying agent, preferably include 5~6% fat
Sour amide-type emulsifying agent.
In embodiments of the present invention, on the basis of base oil volume, the inorganic agent may include 5~6% emulsifying agent and 3~
5% fluid loss additive such as oxidized asphalt.Except flow pattern regulator, the present invention is not particularly limited to the source of the inorganic agent,
Commercially available prod can be used, may also include oil base drilling fluid chemicals commonly used in the art, such as saline solution.The present invention is to described
The preparation method of high density oil base drilling fluid is also not particularly limited, and is prepared according to the conventional method in this area.
In summary, the present invention applies flow pattern regulator described above so that the rheological characteristic of high density oil base drilling fluid
Stable, combination property is more preferable.
For a further understanding of the application, the high density oil base drilling fluid provided with reference to embodiment the application flows
Type conditioning agent, its preparation method and application are specifically described.
In following examples, involved long-chain alkylamide base tertiary amine can (Shanghai) Chemical Co., Ltd. purchased from promise；Chlorine
Sodium acetate is purchased from Shijiazhuang Bi De Science and Technology Ltd.s；Bromoethanol, ethanol, isopropanol, n-butanol, 3- chlorine-2-hydroxyl propane sulfonic acid
Sodium is purchased from Chemical Reagent Co., Ltd., Sinopharm Group；Barite is carried by Hubei Province Yidu City Hong Xin Mining Developments Co., Ltd
For density 4.2g/cm3。
Embodiment 1
Equipped with thermometer, condenser pipe, agitator 500mL four-hole boiling flasks in, add stearamidopropyl dimethylamine
68.32g and 100g water, 80 DEG C are warming up under agitation；Weigh 21.68g sodium chloroacetates be dissolved in 110g water be placed in dropping liquid leakage
In bucket, it is added dropwise to 5 drops/sec of speed in above-mentioned four-hole boiling flask, after being added dropwise, continues to react 6h, obtain solid content as 30%
White liquid product, as high density oil base drilling fluid flow pattern regulator can be used directly.
Phenetic analysis is carried out to products therefrom, as a result referring to Fig. 1 and Fig. 2.Fig. 1 is the products obtained therefrom of the embodiment of the present invention 1
Infrared spectrogram, it can be seen that 3315.28cm-1For imido stretching vibration absworption peak, 2919.22cm-1With
2850.55cm-1For-CH in hydrophobic long-chain in flow pattern regulator2- vibration absorption peak, 1638.07cm- 1For-C=O feature
Absworption peak, 1065cm-1~1398cm-1Locate the C-N stretching vibration absworption peaks of multiple quaternary ammonium salts, therefore can be determined that raw material
Reaction, generates the product with expected structure.
Products obtained therefrom is the high density oil base drilling fluid flow pattern regulator shown in Formulas I, wherein, R1Selected from heptadecyl；Y-
For-COO-；R2For methylene；R3For
Fig. 2 is the differential scanning thermometric analysis figure of the products obtained therefrom of the embodiment of the present invention 1, and test condition includes：Sample size is
4.540mg, air mass flow are 20~60mL/min, and heating rate is 1~3 DEG C/min, and temperature range is room temperature~250 DEG C.Fig. 2
In, occur two peaks (peak) on DSC curve, temperature corresponding to difference is 61.5 DEG C and 147.0 DEG C；According on DTG curves
It is 185.3 DEG C to start to convert temperature corresponding to (onset), and the flow pattern regulator starts to decompose at 185.3 DEG C；According on TG curves
At 250 DEG C, to reduce 5.42%, flow pattern regulator weight-loss ratio within 250 DEG C is mass change (mass change)
5.42%, good thermal stability.
Embodiment 2
Equipped with thermometer, condenser pipe, agitator 500mL four-hole boiling flasks in, add octyl group amido propyl dimethylamine
80.38g, and the mixed solvent being made up of 20g ethanol and 60g water, are warming up to 80 DEG C under agitation；Weigh the chloro- 2- of 69.62g 3-
Hydroxypropionate sodium, which is dissolved in 70g water, to be placed in dropping funel, is added dropwise to 2~3 drops/sec of speed in above-mentioned four-hole boiling flask,
After being added dropwise, continue to react 8h, obtain the weak yellow liquid product that solid content is 50%, as high density oil base drilling fluid is used
Flow pattern regulator.
Products obtained therefrom is the high density oil base drilling fluid flow pattern regulator shown in Formulas I, wherein, R1For octyl group；Y-For-
SO3；R2ForR3For-(CH2)3-。
Embodiment 3~11
According to step same as Example 1, high density oil base drilling fluid flow pattern regulator is prepared respectively, it has
There is Formulas I structure.Specific reactive material and reaction condition are as shown in table 1, and table 1 is that embodiment 3~11 prepares the anti-of flow pattern regulator
Answer material dosage and reaction condition.
The reactive material dosage of table 1 and reaction condition
Embodiment 12~22
Respectively to evaluating the wetability of product of the present invention made from embodiment 1~11, wetting evaluation method is：
300mL 0#In white oil, the product described in the 6g embodiment of the present invention 1~11 is separately added into, the high-speed stirring under 11000r/min rotating speeds
5min is mixed, 10g barites is then respectively adding, respectively obtains oil base drilling fluid；Then, the high-speed stirring under 11000r/min rotating speeds
20min is mixed, is poured into 500mL graduated cylinders, stands 1h.The volume V (mL) that edible vegetable oil is separated according to upper strata calculates its wettability power, as a result joins
2 are shown in Table, the wettability for the oil base drilling fluid that table 2 is prepared by embodiment 12~22.Wettability power calculation formula is as follows：
Wettability power=(300-V)/300 × 100%；
In above formula, V is the reservoir volume (mL) that 1h is isolated.From table 2 it can be seen that flow pattern regulator counterweight of the present invention is brilliant
The wettability power of stone>80%.
The wettability for the oil base drilling fluid that the embodiment 12~22 of table 2 is prepared
Embodiment 23~33
Prepare drilling fluid：First respectively in base oil (0#Diesel oil) 2~3% organoclays of middle addition, in 10000rpm rotating speed
Lower stirring 5min, 5% emulsifying agent, and the flow pattern regulator described in 2% embodiment of the present invention 1~11 are then respectively adding, after
Continuous stirring 5min, is separately added into 3% alkalinity regulator, stirs 5min, being separately added into the aqueous solution, (20% mass concentration calcium chloride is molten
Liquid), continue to stir 5min, then 4% fluid loss additive (oxidized asphalt) is separately added into, 5min is stirred for, is separately added into barite, most
After stir 20min, respectively obtain drilling fluid.
Wherein, organoclay used is purchased from Zhejiang Fenghong New Material Co., Ltd., model HFGEL-120；Emulsifying agent
Purchased from China Petroleum Group Drilling Engineering Technology Research Institute, it is fatty acid acyl amine, and residual acid value is remaining between 10~35
Amine value is between 10~15；Calcium oxide is purchased from Henan Province Tangyin County Wen Xing building materials chemical industries factory；Oxidized asphalt is purchased from Henan Province Xinxiang
Chemical Co., Ltd. of city the 7th, softening point is between 120~160 DEG C.
Comparative example 1
For comparative example 1 except not adding flow pattern regulator, remaining component is identical with embodiment 23,24, prepares obtained oil base
The density of drilling fluid is 2.5g/cm3。
Comparative example 2
For comparative example 2 except not adding flow pattern regulator, remaining component is identical with embodiment 25, prepares obtained oil base drilling well
The density of liquid is 2.62g/cm3。
Embodiment 34
Flow pattern regulation performance of the product of the present invention prepared respectively to embodiment 1~11 in high density oil base drilling fluid is entered
Row evaluation, that is, embodiment 23~33 is prepared to obtained drilling fluid and is respectively charged into ageing can, it is placed in 150~180 DEG C of rolling
16h is rolled in sub- stove, then in the combination property of 60 DEG C of each drilling fluids of measure, assay method is according to GB/T 16783.2-2012
《Industrial gas oil drilling fluid on-the-spot test part 2：Oil base drilling fluid》Carry out.Meanwhile by the same way measure pair
Ratio prepares the combination property of obtained drilling fluid.
Evaluation results are shown in Table 3, the oil base drilling fluid that table 3 is prepared by embodiment 23~33 and comparative example it is comprehensive
Energy.
The combination property for the oil base drilling fluid that the embodiment 23~33 of table 3 and comparative example are prepared
From table 3 it is observed that compared with when not adding flow pattern regulator, high density (2.2~2.62g/cm3) oil base bore
Well liquid combination property is more preferable, plastic viscosity it is low (<80mPas), yield value is high after high temperature (180 DEG C) aging, is more beneficial for taking
With drilling cuttings and prevent drilling cuttings and weighting material from settling, maintain drilling fluid rheology stable.In addition, add drilling fluid after flow pattern is adjusted
High temperature and high pre ssure filtration declined, show that it can play certain filtrate reducing effect simultaneously.
Described above is only the preferred embodiment of the present invention, it is noted that the professional technique for making the art
Personnel, without departing from the technical principles of the invention, it is that by a variety of modifications to these embodiments, and these
Modification also should be regarded as the scope that the present invention should protect.
Claims (10)
1. a kind of high density oil base drilling fluid flow pattern regulator, it is characterised in that there is Formulas I structure：
In Formulas I, R1Selected from C8~alkenyl of 22 alkyl or C17~21；
R2For methylene orR3For-(CH2)3- or
Y-For-COO-Or-SO3 -。
2. flow pattern regulator according to claim 1, it is characterised in that R1Selected from octyl group, decyl, undecyl, tridecane
Base, myristyl, cetyl, heptadecyl or CH3(CH2)m- CH=CH- (CH2)n-CH2-, wherein, m 7, n are 6 or 10.
3. a kind of preparation method of high density oil base drilling fluid flow pattern regulator, comprises the following steps：
Long chain hydrocarbon groups amide groups tertiary amine and quaternizing agent are reacted in a solvent, obtain high density oil base drilling fluid stream
Type conditioning agent；
The long chain hydrocarbon groups amide groups tertiary amine has Formula II structure：
The quaternizing agent has formula III structure：
X-R2- Y-Na formula IIIs；
The high density oil base drilling fluid flow pattern regulator has Formulas I structure：
Wherein, R1Selected from C8~alkenyl of 22 alkyl or C17~21；
R2For methylene orR3For-(CH2)3- or
X is selected from halogen；Y-For-COO-Or SO3 -。
4. preparation method according to claim 3, it is characterised in that the long chain hydrocarbon groups amide groups tertiary amine is octyl group acid amides
Base diemethylamine, decyl amidopropyl dimethylamine, lauryl amidopropyl dimethylamine, myristyl amide base propyl group two
Methylamine, hexadecyl amide base diemethylamine, oleamide base diemethylamine, stearamidopropyl dimethylamine, cocounut oil
Amidopropyl dimethylamine or erucyl amide base diemethylamine.
5. preparation method according to claim 3, it is characterised in that the solvent is water or formed by organic solvent and water
Mixture.
6. preparation method according to claim 5, it is characterised in that the organic solvent is alcohol organic solvent.
7. preparation method according to claim 6, it is characterised in that the mass ratio of the alcohol organic solvent and water is
0.1~5：10.
8. preparation method according to claim 3, it is characterised in that the temperature of the reaction is 75~85 DEG C.
9. a kind of high density oil base drilling fluid, including base oil and inorganic agent, it is characterised in that the inorganic agent includes claim
Flow pattern made from the preparation method any one of flow pattern regulator or claim 3~8 any one of 1~2 is adjusted
Save agent.
10. high density oil base drilling fluid according to claim 9, it is characterised in that the dosage of the flow pattern regulator is
1~5 (w/v) % of base oil.
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