CN106978153A - A kind of drilling fluid heat resisting fluid loss reducing agent latex and its production technology - Google Patents
A kind of drilling fluid heat resisting fluid loss reducing agent latex and its production technology Download PDFInfo
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- CN106978153A CN106978153A CN201710343253.2A CN201710343253A CN106978153A CN 106978153 A CN106978153 A CN 106978153A CN 201710343253 A CN201710343253 A CN 201710343253A CN 106978153 A CN106978153 A CN 106978153A
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/30—Emulsion polymerisation with the aid of emulsifying agents non-ionic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
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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
- C09K8/04—Aqueous well-drilling compositions
- C09K8/26—Oil-in-water emulsions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
- C08F220/585—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]
Abstract
A kind of drilling fluid heat resisting fluid loss reducing agent latex and its production technology, wherein, the latex is prepared from by the first monomer, second comonomer, water, gas liquefaction, emulsifying agent and initiator, first monomer is the anionic monomer containing sulfonic group or carboxyl, and the second comonomer is the non-ionic monomer containing amide groups；The production technology includes the first monomer being added to the water, and stirs, and pH is to 58 for regulation, is cooled to room temperature, adds second comonomer, and stirring obtains aqueous phase；Gas liquefaction is warming up under certain temperature, stirring condition and adds emulsifying agent, stirs, obtains oil phase；The aqueous phase is added in oil phase, stirred, shearing obtains pre-emulsion；2/to three/3rd pre-emulsion is moved in reaction vessel, heated up, leads to protection gas, is slowly added to initiator and remaining pre-emulsion；Continue to react after adding；Stop logical nitrogen, stop heating.The fluid loss additive latex of the application has the advantages that high temperature resistance, stability are good.
Description
Technical field
The application relates to, but are not limited to drilling fluid inorganic agent field, is more particularly without limitation, to a kind of stability preferable
Drilling fluid heat resisting fluid loss reducing agent latex and its production technology.
Background technology
With the swift and violent increase and the progress of drilling technique of World's Oil and Gas Resources demand, countries in the world are increased to depth one after another
The input of portion's hydrocarbon stratum resources exploration.And in deep ＆ ultra-deep well drilling well, the quality of drilling fluid be determine engineering success or failure,
The key of drilling speed speed and cost height.Relative to conventional drilling, higher is required to drilling fluid used in deep drilling, is especially bored
The heat-resisting property of well liquid.Therefore, the temperature resistance of drilling fluid and rheological property, filtration property under the high temperature conditions etc. are that deep-well surpasses
The difficult point of deep-well high density drilling fluid technology.In consideration of it, each major oil companies of the world and domestic each oil field are all actively developed
For the research and development of high temperature resistant drilling fluids inorganic agent and the high temperature resistant drilling fluids system of function admirable.
Polymer treatment agent is one of maximum additive for drilling fluid of consumption, is supplied and is made with powder product for a long time
With.But powdery polymer inorganic agent is in drying, crushing process, the adverse effect that the reaction such as can be degraded, be crosslinked is caused, and
And content of the powdery polymer inorganic agent in drilling fluid is relatively low, easily occur " flake " phenomenon, and scene charging is very inconvenient.
The content of the invention
The following is the general introduction of the theme to being described in detail herein.This general introduction is not to limit the protection model of claim
Enclose.
This application provides a kind of simple production process, reproducible, high temperature resistance, stability is good, is dissolved in drilling fluid
It hurry up, the fluid loss additive for boring fluid and its production technology of the latex form of " flake " phenomenon do not occur.
Specifically, this application provides a kind of drilling fluid heat resisting fluid loss reducing agent latex, the latex by the first monomer,
Second comonomer, water, gas liquefaction, emulsifying agent and initiator are prepared from；Wherein, first monomer is containing sulfonic group or carboxyl
Anionic monomer, the second comonomer is the non-ionic monomer containing amide groups.
In presently filed embodiment, the mol ratio of first monomer and second comonomer can be 0.5:3-4:3, institute
The quality for stating initiator accounts for the 0.1-1.5% of two kinds of monomer gross mass, is counted using the gross mass of all raw materials as 100%, two kinds of lists
The gross mass of body is 15-50%, and the quality of the gas liquefaction is 20-40%, and the quality of the emulsifying agent is 2-15%, and water is remaining
Amount.
In presently filed embodiment, first monomer can be selected from 2- acrylamide-2-methyl propane sulfonics, propylene
One kind in acid, maleic acid, itaconic acid, sodium p styrene sulfonate.
In presently filed embodiment, the second comonomer can be selected from acrylamide, N- vinyl -2- pyrrolidines
Ketone, N,N-DMAA, N, N- acrylamides, NIPA, N- methyl-N-vinyl acetyl
One kind in amine.
In presently filed embodiment, the gas liquefaction can be Saraline 185V.
In presently filed embodiment, the emulsifying agent can be selected from sorbitan fatty ester, polyoxyethylene
One or more in derivative.
Alternatively, the polyoxyethylene deriv includes polyoxyethylene sorbitan fatty acid ester, phenol polyoxyethylene
Ether, AEO.
In presently filed embodiment, the initiator can be selected from ammonium persulfate, sodium hydrogensulfite, tetramethyl second two
One or more in amine, dibenzoyl peroxide, potassium peroxydisulfate.
In presently filed embodiment, the particle diameter of the fluid loss additive latex can be 50-100 microns.
Present invention also provides a kind of production technology of drilling fluid as described above heat resisting fluid loss reducing agent latex, including：
First monomer is added to the water, stirred, pH is to 5-8 for regulation, is cooled to room temperature, second comonomer is added, stirring is obtained
Aqueous phase；
Gas liquefaction is warming up under certain temperature, stirring condition and adds emulsifying agent, stirs, obtains oil phase；
The aqueous phase is added in oil phase, stirred, shearing obtains pre-emulsion；
2/to three/3rd pre-emulsion is moved in reaction vessel, heated up, leads to protection gas, is slowly added to trigger
Agent and remaining pre-emulsion；Continue to react after adding；Stop logical nitrogen, stop heating.
In the production technology of the application, it is not necessary to limit and add the first monomer or for the order for the alkali for adjusting pH,
As long as the first monomer is to add at ambient temperature.
In presently filed embodiment, pH can be adjusted with NaOH the or KOH aqueous solution.
Alternatively, pH is adjusted with the 40% NaOH aqueous solution.
It is described gas liquefaction is warming up to certain temperature to refer to gas liquefaction being warming up to 40- in presently filed embodiment
50℃。
In presently filed embodiment, the shearing is sheared with shear pump, alternatively, the time of the shearing
For 30-60 minutes, the degree that turns of the shear pump was 1000-10000r/min.
In presently filed embodiment, after 2/1sts to three/3rd pre-emulsion is moved in reaction vessel
Heating refers to warming-in-water to 30-60 DEG C.
In presently filed embodiment, the protection gas can be nitrogen or helium.
In presently filed embodiment, initiator can be slowly added to and remaining pre- after logical protection gas 30 minutes
Emulsion.
It is described to be slowly added to initiator and remaining pre-emulsion referred at 30-60 minutes in presently filed embodiment
Inside add initiator and remaining pre-emulsion.
In presently filed embodiment, it is described add after continue reaction refer to continue react 2-8 hours.
Compared with prior art, the application has following beneficial effects：
(1) the fluid loss additive latex of the application can resist 200 DEG C of high temperature, it is adaptable to which temperature is no more than the dehydration control at 200 DEG C
System；
(2) long-time stability of the fluid loss additive latex of the application are good, it is not easy to be layered, suitable for long-term storage；
(3) the fluid loss additive latex sheet of the application can be rapidly dissolved in drilling fluid as liquid, and existing without " flake "
As producing, scene charging is convenient；
(4) the fluid loss additive latex of the application can improve the suspendability of drilling fluid, can prevent heavy weight additive (for example,
Barite) sedimentation；
(5) gas liquefaction composition is contained in the fluid loss additive latex of the application, it is possible to increase the lubricity of drilling fluid, reduction pressure
Poor bit freezing tendency；
(6) the fluid loss additive latex compatibility of the application is good, it is adaptable to all conventional water-base drilling fluids, including with formic acid
The drilling fluid that salt is prepared；
(7) production technology of the application is using the gas liquefaction of low toxic and environment-friendly as oil base, and simple production process is reproducible,
Without follow-up drying, link is crushed, production cost is reduced；Energy resource consumption is reduced simultaneously, environmental pollution is reduced, is a kind of
The production technology of environmental protection.
Other features and advantage will be illustrated in the following description, also, partly be become from specification
Obtain it is clear that or being understood by implementing the application.The purpose of the application and other advantages can be by specification, rights
Specifically noted structure is realized and obtained in claim and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing further understanding technical scheme, and constitutes a part for specification, with this
The embodiment of application is used for the technical scheme for explaining the application together, does not constitute the limitation to technical scheme.
Fig. 1 is outside drawing of the latex of the embodiment of the present application 1 before and after room temperature and 50 DEG C are placed 90 days.
Fig. 2 is the particle diameter distribution result of the latex of the embodiment of the present application 1.
Embodiment
, hereinafter will be to embodiments herein for the purpose, technical scheme and advantage of the application are more clearly understood
It is described in detail.It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can
To be mutually combined.
Gas liquefaction Saraline 185V used in following examples are bought from shell (SHELL) company, other raw materials
And reagent, it is common commercially available prod unless otherwise instructed.
Embodiment 1
(1) preparation of aqueous phase
In the first reactor, the deionized water of 32 mass parts is added, is added under conditions of being stirred with 50r/min rotating speeds
The mass parts of NaOH 3.5, stirring is cooled to room temperature to abundant dissolving, then adds 2- acrylamide-2-methyl propane sulfonics 17
Mass parts, stirring is cooled to room temperature to abundant dissolving, adds the mass parts of N,N-DMAA 13, stirs 30 points
Clock, it is standby.
(2) preparation of oil phase
In the second reactor, the mass parts of gas liquefaction Saraline 185V 30 are added, and are warming up to 50 DEG C, with 50r/
The mass parts of sorbitan fatty ester 3.7 and polyoxyethylene sorbitol acid anhydride are slowly added under conditions of the stirring of min rotating speeds
The mass parts of fatty acid ester 0.7, are stirred 20 minutes, standby.
(3) preparation of pre-emulsion
Whole oil phases are moved in the 3rd reactor with shear pump, stirring is opened, shear pump is opened, then added inward complete
The aqueous phase in portion, the degree that turns of shear pump is 5000r/min, is sheared 40 minutes, standby.
(4) polymerisation
2/3rds pre-emulsion is moved in the second reactor, warming-in-water is opened to 40 DEG C, leads to nitrogen 30 minutes, it
The potassium peroxydisulfate of 0.1 mass parts and the pre-emulsion of remainder 1/3rd are slowly added to afterwards, start reaction, the two is in 40 minutes
Add.Continue to react 4 hours after adding.Then stop logical nitrogen, stop heating.Finally metering is fitted into 25kg barrels, sampling inspection
Survey, storage.
Embodiment 2
(1) preparation of aqueous phase
In the first reactor, the deionized water of 32 mass parts is added, is added under conditions of being stirred with 50r/min rotating speeds
The mass parts of NaOH 3.5, stirring is cooled to room temperature to abundant dissolving, then adds the mass parts of itaconic acid 12, stirs to abundant
Dissolving, and room temperature is cooled to, N is added, the mass parts of N- acrylamides 18 are stirred 30 minutes, standby.
(2) preparation of oil phase
In the second reactor, the mass parts of gas liquefaction Saraline 185V 30 are added, and are warming up to 50 DEG C, with 50r/
The mass parts of sorbitan fatty ester 3.7 and polyoxyethylene sorbitol acid anhydride are slowly added under conditions of the stirring of min rotating speeds
The mass parts of fatty acid ester 0.7, are stirred 20 minutes, standby.
(3) preparation of pre-emulsion
Whole oil phases are moved in the 3rd reactor with shear pump, stirring is opened, shear pump is opened, then added inward complete
The aqueous phase in portion, the degree that turns of shear pump is 5000r/min, is sheared 40 minutes, standby.
(4) polymerisation
2/3rds pre-emulsion is moved in the second reactor, warming-in-water is opened to 40 DEG C, leads to nitrogen 30 minutes, it
The ammonium persulfate of 0.1 mass parts and the pre-emulsion of remainder 1/3rd are slowly added to afterwards, start reaction, the two is in 40 minutes
Add.Continue to react 6 hours after adding.Then stop logical nitrogen, stop heating.Finally metering is fitted into 25kg barrels, sampling inspection
Survey, storage.
Embodiment 3
(1) preparation of aqueous phase
In the first reactor, the deionized water of 32 mass parts is added, is added under conditions of being stirred with 50r/min rotating speeds
The mass parts of NaOH 3.5, stirring is cooled to room temperature to abundant dissolving, then adds 2- acrylamide-2-methyl propane sulfonics 10
Mass parts, stirring is cooled to room temperature to abundant dissolving, adds the mass parts of N,N-DMAA 20, stirs 30 points
Clock, it is standby.
(2) preparation of oil phase
In the second reactor, the mass parts of gas liquefaction Saraline 185V 30 are added, and are warming up to 50 DEG C, with 50r/
The mass parts of sorbitan fatty ester 3.5 and AEO 0.9 are slowly added under conditions of the stirring of min rotating speeds
Mass parts, are stirred 20 minutes, standby.
(3) preparation of pre-emulsion
Whole oil phases are moved in the 3rd reactor with shear pump, stirring is opened, shear pump is opened, then added inward complete
The aqueous phase in portion, the degree that turns of shear pump is 5000r/min, is sheared 40 minutes, standby.
(4) polymerisation
2/3rds pre-emulsion is moved in the second reactor, warming-in-water is opened to 40 DEG C, leads to nitrogen 30 minutes, it
The potassium peroxydisulfate of 0.1 mass parts and the pre-emulsion of remainder 1/3rd are slowly added to afterwards, start reaction, the two is in 40 minutes
Add.Continue to react 4 hours after adding.Then stop logical nitrogen, stop heating.Finally metering is fitted into 25kg barrels, sampling inspection
Survey, storage.
Embodiment 4
(1) preparation of aqueous phase
In the first reactor, the deionized water of 32 mass parts is added, is added under conditions of being stirred with 50r/min rotating speeds
The mass parts of NaOH 3.5, stirring is cooled to room temperature to abundant dissolving, then adds 2- acrylamide-2-methyl propane sulfonics 20
Mass parts, stirring is cooled to room temperature to abundant dissolving, adds the mass parts of N,N-DMAA 10, stirs 30 points
Clock, it is standby.
(2) preparation of oil phase
In the second reactor, the mass parts of gas liquefaction Saraline 185V 30 are added, and are warming up to 50 DEG C, with 50r/
The mass parts of sorbitan fatty ester 3.7 and polyoxyethylene sorbitol acid anhydride are slowly added under conditions of the stirring of min rotating speeds
The mass parts of fatty acid ester 0.7, are stirred 20 minutes, standby.
(3) preparation of pre-emulsion
Whole oil phases are moved in the 3rd reactor with shear pump, stirring is opened, shear pump is opened, then added inward complete
The aqueous phase in portion, the degree that turns of shear pump is 5000r/min, is sheared 40 minutes, standby.
(4) polymerisation
2/3rds pre-emulsion is moved in the second reactor, warming-in-water is opened to 40 DEG C, leads to nitrogen 30 minutes, it
The tetramethylethylenediamine of 0.1 mass parts and the pre-emulsion of remainder 1/3rd are slowly added to afterwards, start reaction, the two is at 40 points
Added in clock.Continue to react 4 hours after adding.Then stop logical nitrogen, stop heating.Finally metering is fitted into 25kg barrels, takes
Sample is detected, is put in storage.
Comparative example 1
(1) preparation of aqueous phase
In the first reactor, the deionized water of 32 mass parts is added, is added under conditions of being stirred with 50r/min rotating speeds pure
The mass parts of alkali 3.5, stirring is cooled to room temperature to abundant dissolving, then adds the mass of 2- acrylamide-2-methyl propane sulfonics 17
Part, stirring is cooled to room temperature to abundant dissolving, adds the mass parts of N,N-DMAA 13, stirs 30 minutes, standby
With.
(2) preparation of oil phase
In the second reactor, the mass parts of gas liquefaction Saraline 185V 30 are added, and are warming up to 50 DEG C, with 50r/
The mass parts of castor oil polyoxyethylene ether 2.8 and the mass of allyl alcohol polyoxyalkyl ether 1.2 are slowly added under conditions of the stirring of min rotating speeds
Part, stir 20 minutes, it is standby.
(3) preparation of pre-emulsion
Whole oil phases are moved in the 3rd reactor with shear pump, stirring is opened, shear pump is opened, then added inward complete
The aqueous phase in portion, the degree that turns of shear pump is 5000r/min, is sheared 40 minutes, standby.
(4) polymerisation
2/3rds pre-emulsion is moved in the second reactor, warming-in-water is opened to 40 DEG C, leads to nitrogen 30 minutes, it
The potassium peroxydisulfate of 0.1 mass parts and the pre-emulsion of remainder 1/3rd are slowly added to afterwards, start reaction, the two is in 40 minutes
Add.Continue to react 4 hours after adding.Then stop logical nitrogen, stop heating.Finally metering is fitted into 25kg barrels, sampling inspection
Survey, storage.
Comparative example 2
(1) preparation of aqueous phase
In the first reactor, the deionized water of 32 mass parts is added, is added under conditions of being stirred with 50r/min rotating speeds pure
The mass parts of alkali 3.5, stirring is cooled to room temperature to abundant dissolving, then adds the mass of 2- acrylamide-2-methyl propane sulfonics 17
Part, stirring is cooled to room temperature to abundant dissolving, adds the mass parts of N,N-DMAA 13, stirs 30 minutes, standby
With.
(2) preparation of oil phase
In the second reactor, the mass parts of gas liquefaction Saraline 185V 30 are added, and are warming up to 50 DEG C, with 50r/
The mass parts of sorbitan fatty ester 3.7 and polyoxyethylene sorbitol acid anhydride are slowly added under conditions of the stirring of min rotating speeds
The mass parts of fatty acid ester 0.7, are stirred 20 minutes, standby.
(3) preparation of pre-emulsion
Whole oil phases are moved in the 3rd reactor with shear pump, stirring is opened, shear pump is opened, then added inward complete
The aqueous phase in portion, the degree that turns of shear pump is 5000r/min, is sheared 40 minutes, standby.
(4) polymerisation
2/3rds pre-emulsion is moved in the second reactor, warming-in-water is opened to 40 DEG C, leads to nitrogen 30 minutes, it
The azodiisobutyronitrile of 0.1 mass parts and the pre-emulsion of remainder 1/3rd are slowly added to afterwards, start reaction, the two is at 40 points
Added in clock.Continue to react 4 hours after adding.Then stop logical nitrogen, stop heating.Finally metering is fitted into 25kg barrels, takes
Sample is detected, is put in storage.
Test case
1st, the stability of latex is investigated
Common detection methods according to this area detect the stability for the product that above-described embodiment is prepared, specific side
Whether method is observed the outward appearance of latex and is layered to place 6 months.Test result is shown in Table 1.
Table 1
Note：According to the experience of inventor, milky white or linen latex is presented and is generally not easy layering.Therefore, latex
Color can also react its stability to a certain extent.
As it can be seen from table 1 the embodiment of the present application 1-4 fluid loss additive latex is in milky white or canescence, illustrate that it is stable
Property is preferable.Although still using the present processes, the emulsifying agent of the non-selected the application of comparative example 1, but selection castor-oil plant
Oily APEO is as emulsifying agent, the initiator of the non-selected the application of comparative example 2, but selection azodiisobutyronitrile is as drawing
Agent is sent out, comparative example 1-2 product jaundice illustrates that its stability is bad.
Latex shows layering slightly after present inventor once places the latex in embodiment 11 year, 1 year, but stirs
After mixing and recover initial color and the state without layering, test its performance and find that performance is unchanged.
Fig. 1 is outside drawing of the latex of the embodiment of the present application 1 before and after room temperature and 50 DEG C are placed 90 days.Can from Fig. 1
Go out, after placing 90 days, the outward appearance of the latex of the embodiment of the present application 1 is almost unchanged.
The particle diameter of fluid loss additive latex is relevant with color, and color can react its stability to a certain extent.Adopt
With the latex of 500 times of light microscopes, 500 times of amplifying observation the embodiment of the present application 1, Fig. 2 is as a result seen.
Figure it is seen that the particle diameter distribution of the latex of the embodiment of the present application 1 is homogeneous, about 50-100 microns.Due to grain
Footpath is relevant with the color of latex, and milky is presented in latex of the particle diameter in 50-100 micrometer ranges, illustrates the embodiment of the present application 1
The stability of latex is preferable.
2nd, the heat-resisting property of latex is investigated
Common detection methods according to this area detect that the product that above-described embodiment is prepared is starched or formic acid in seawater base
Performance in alkali slurry before and after 200 DEG C of aging 16h is as follows with paste-making method:
400mL seawater bases are starched:270g seawater+1g sodium carbonate+4g soil powder+12g sulfonated lignite+8g calcium soil+506g barites.
Test result is see table 2.
400mL formic acid alkali is starched:220g seawater+40g potassium formate+20g sodium chloride+1g sodium carbonate+1g sodium hydroxides+4g soil
Powder+12g sulfonated lignite+12g sulfonation pitch prill+463g barites.Test result is see table 2.
Table 2
From table 2 it can be seen that either starched or in formic acid alkali slurry in seawater base, before and after 200 DEG C of agings, this Shen
Please embodiment 1-4 fluid loss additive latex filter loss it is almost unchanged, illustrate the embodiment of the present application 1-4 fluid loss additive latex
Filtrate loss controllability do not influenceed by high temperature, high temperature resistant property is preferable；And the filter loss of comparative example 1-2 product after weathering is obvious
Become big, illustrate that its high temperature resistant property is poor.
Apply for that the sedimentation factor of embodiment 1-4 and comparative example 1-2 fluid loss additive latex all (more connects in 0.50-0.55
Nearly 0.50, represent that barite sedimentation stability is better), illustrate that the suspendability of these latex is preferable.
Although the embodiment disclosed by the application is as above, described content is only to readily appreciate the application and use
Embodiment, is not limited to the application.Technical staff in any the application art, is taken off not departing from the application
On the premise of the spirit and scope of dew, any modification and change, but the application can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (11)
1. a kind of drilling fluid heat resisting fluid loss reducing agent latex, the latex is by the first monomer, second comonomer, water, gas liquefaction, breast
Agent and initiator are prepared from；Wherein, first monomer is the anionic monomer containing sulfonic group or carboxyl, and described second is single
Body is the non-ionic monomer containing amide groups.
2. drilling fluid according to claim 1 heat resisting fluid loss reducing agent latex, wherein, first monomer and the second list
The mol ratio of body is 0.5:3-4:3, the quality of the initiator accounts for the 0.1-1.5% of two kinds of monomer gross mass, with all raw materials
Gross mass be 100% meter, the gross masses of two kinds of monomers is 15-50%, and the quality of the gas liquefaction is 20-40%, the breast
The quality of agent is 2-15%, and water is surplus.
3. drilling fluid according to claim 1 or 2 heat resisting fluid loss reducing agent latex, wherein, first monomer is selected from
One kind in 2- acrylamide-2-methyl propane sulfonics, acrylic acid, maleic acid, itaconic acid, sodium p styrene sulfonate.
4. drilling fluid according to claim 1 or 2 heat resisting fluid loss reducing agent latex, wherein, the second comonomer is selected from
Acrylamide, NVP, N,N-DMAA, N, N- acrylamides, N- isopropyls third
One kind in acrylamide, N- methyl-Nvinylacetamides.
5. drilling fluid according to claim 1 or 2 heat resisting fluid loss reducing agent latex, wherein, the gas liquefaction is
Saraline 185V。
6. drilling fluid according to claim 1 or 2 heat resisting fluid loss reducing agent latex, wherein, the emulsifying agent, which is selected from, to be lost
One or more in water sorbitan fatty acid ester, polyoxyethylene deriv；Alternatively, the polyoxyethylene deriv bag
Include polyoxyethylene sorbitan fatty acid ester, phenol APEO, AEO.
7. drilling fluid according to claim 1 or 2 heat resisting fluid loss reducing agent latex, wherein, the initiator was selected from
One or more in ammonium sulfate, sodium hydrogensulfite, tetramethylethylenediamine, dibenzoyl peroxide, potassium peroxydisulfate；It is optional
Ground, the particle diameter of the fluid loss additive latex is 50-100 microns.
8. a kind of drilling fluid according to any one of claim 1-7 production technology of heat resisting fluid loss reducing agent latex,
Including：
First monomer is added to the water, stirred, pH is to 5-8 for regulation, is cooled to room temperature, second comonomer is added, stirring obtains water
Phase；
Gas liquefaction is warming up under certain temperature, stirring condition and adds emulsifying agent, stirs, obtains oil phase；
The aqueous phase is added in oil phase, stirred, shearing obtains pre-emulsion；
2/to three/3rd pre-emulsion is moved in reaction vessel, heat up, lead to protection gas, be slowly added to initiator and
Remaining pre-emulsion；Continue to react after adding；Stop logical nitrogen, stop heating.
9. production technology according to claim 8, wherein, pH is adjusted with NaOH the or KOH aqueous solution, alternatively, with 40%
The NaOH aqueous solution regulation pH；Alternatively, it is described gas liquefaction is warming up to certain temperature to refer to gas liquefaction being warming up to 40-50
℃。
10. production technology according to claim 8, wherein, the shearing is sheared with shear pump, alternatively, institute
The time for stating shearing is 30-60 minutes, and the degree that turns of the shear pump is 1000-10000r/min.
11. production technology according to claim 8, wherein, 2/1sts to three/3rd pre-emulsion is moved into reaction
Heating after in container refers to warming-in-water to 30-60 DEG C；
Alternatively,
The protection gas is nitrogen or helium；
Logical protection gas is slowly added to initiator and remaining pre-emulsion after 30 minutes；
It is described to be slowly added to initiator and remaining pre-emulsion refers to add initiator and remaining pre- breast in 30-60 minutes
Liquid；
It is described add after continue reaction refer to continue react 2-8 hours.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942748A (en) * | 2019-03-26 | 2019-06-28 | 刘骞 | A kind of viscous crude flooding polymers and its preparation method and application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429425A (en) * | 2007-11-07 | 2009-05-13 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Process for preparing vinyl sulphonate polymer drilling fluid finishing agent |
| CN102382245A (en) * | 2011-08-11 | 2012-03-21 | 中国海洋石油总公司 | High temperature-resistant polymer filtrate reducer for drilling fluid and preparation method thereof |
| CN102585090A (en) * | 2011-01-10 | 2012-07-18 | 河南金马石油科技有限责任公司 | Preparation method for filtrate reducer |
| CN105017474A (en) * | 2014-04-29 | 2015-11-04 | 中国石油化工股份有限公司 | Low-friction fluid loss agent and preparation method and application thereof |
| CN105367707A (en) * | 2014-08-06 | 2016-03-02 | 天津中油渤星工程科技有限公司 | Drilling fluid high-temperature-resistant polymer filtrate reducer and applications thereof |
| CN106256870A (en) * | 2016-07-20 | 2016-12-28 | 天津中油渤星工程科技有限公司 | A kind of fluid loss additive for boring fluid and preparation method thereof |
-
2017
- 2017-05-16 CN CN201710343253.2A patent/CN106978153A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429425A (en) * | 2007-11-07 | 2009-05-13 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Process for preparing vinyl sulphonate polymer drilling fluid finishing agent |
| CN102585090A (en) * | 2011-01-10 | 2012-07-18 | 河南金马石油科技有限责任公司 | Preparation method for filtrate reducer |
| CN102382245A (en) * | 2011-08-11 | 2012-03-21 | 中国海洋石油总公司 | High temperature-resistant polymer filtrate reducer for drilling fluid and preparation method thereof |
| CN105017474A (en) * | 2014-04-29 | 2015-11-04 | 中国石油化工股份有限公司 | Low-friction fluid loss agent and preparation method and application thereof |
| CN105367707A (en) * | 2014-08-06 | 2016-03-02 | 天津中油渤星工程科技有限公司 | Drilling fluid high-temperature-resistant polymer filtrate reducer and applications thereof |
| CN106256870A (en) * | 2016-07-20 | 2016-12-28 | 天津中油渤星工程科技有限公司 | A kind of fluid loss additive for boring fluid and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王中华: "P(AMPS-DMAM)共聚物钻井液降滤失剂的合成", 《精细与专用化学品》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942748A (en) * | 2019-03-26 | 2019-06-28 | 刘骞 | A kind of viscous crude flooding polymers and its preparation method and application |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: China Oilfield Services Limited Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: China Oilfield Services Limited |
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Application publication date: 20170725 |