CN106349426A - Emulsion encapsulating and inhibiting agent for drilling liquid, and production technology and application of emulsion encapsulating and inhibiting agent - Google Patents
Emulsion encapsulating and inhibiting agent for drilling liquid, and production technology and application of emulsion encapsulating and inhibiting agent Download PDFInfo
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- CN106349426A CN106349426A CN201610704431.5A CN201610704431A CN106349426A CN 106349426 A CN106349426 A CN 106349426A CN 201610704431 A CN201610704431 A CN 201610704431A CN 106349426 A CN106349426 A CN 106349426A
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- inhibitor
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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
- C08F220/56—Acrylamide; Methacrylamide
-
- 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
- C08F2/32—Polymerisation in water-in-oil emulsions
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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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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses an emulsion encapsulating and inhibiting agent for drilling liquid, a production technology and application of the emulsion encapsulating and inhibiting agent, and belongs to the technical field of emulsion for the drilling liquid. The emulsion encapsulating and inhibiting agent is prepared from the following raw materials in parts by weight: 40 parts of white oil, 0.5 part of tween 80, 9 parts of an emulsifying agent-sorbitan stearate, 36 parts of acrylamide, 10 parts of N,N-dimethyl acrylamide, 18 parts of acrylic acid, 5 parts of AMPS (Acrylamido Propanesulfonic Acid), 100 parts of distilled water, 15 parts of sodium carbonate, 3 parts of cationic monomer DMDAAC (Dimethyl Diallyl Ammonium Chloride), 1 part of initiator, 1.5 parts of film releasing agent OP-10 and 0.05 part of polymerization terminating agent. A product has good shearing resistance, good flocculation effect and very strong inhibition performance, and is capable of improving the lubricity of the drilling liquid and reducing the adhesion coefficient of mud; the emulsion encapsulating and inhibiting agent can be widely applied to drilling and completion fluid of light pulp, salty pulp and seawater.
Description
Technical field
The invention belongs to drilling fluid emulsion technology field and in particular to drilling fluid be coated inhibitor and its production technology and
Application.
Background technology
It is a kind of synthetic polymer of temperature-resistant anti-salt that drilling fluid emulsion is coated inhibitor.By acrylamide, n, n- bis-
The various of monomers such as Methacrylamide, acrylic acid, 2- acrylamide-2-methylpro panesulfonic acid, cationic monomer dmdaac are anti-phase
Emulsion polymerization forms.
This product does not need to be made into glue in using at the scene, can be used directly, quick dissolving, has good in drilling fluid
Good dispersibility.And the product of different degree of hydrolysis can be produced into, due to introducing multiple heatproofs, salt resistance group, thus improve
The rigidity of copolymer molecule, improves its heatproof, salt resistance calcium and shear resistant.This product overcomes the anti-shearing of conventional polymer
Property poor, salt resistance is poor, sensitive to high volence metal ion to heat stability difference the shortcomings of, be that a kind of brand-new polymer is coated suppression
Agent, can be used for deep-well, in ultradeep well and in high-salinity brine it can also be used to the emulsion of low solid phase, solid free completion fluid is coated
Inhibitor.Can be used for fresh water, saline, saturated brine and sea water drill in fluid.
Content of the invention
First technical problem to be solved by this invention be provide drilling fluid emulsion be coated inhibitor, this inhibitor by
Following raw material prepares, and described raw material includes following parts by weight of component: 40 parts of white oil, 0.5 part of Tween 80, anhydrous sorbitol
9 parts of stearate, 36 parts of acrylamide, n, 10 parts of n- DMAA, 18 parts of acrylic acid, 5 parts of amps, distilled water 100
Part, 15 parts of soda, 3 parts of dmdaac, 1.5 parts of op-10,1 part of initiator.
Wherein, above-mentioned drilling fluid emulsion is coated in inhibitor, and described initiator is redox initiator or azo
Initiator.
Preferably, above-mentioned redox initiator is benzoyl peroxide or sodium sulfite.
Second technical problem to be solved by this invention is the production providing above-mentioned drilling fluid emulsion to be coated inhibitor
Technique, this production technology comprises the following steps:
(1), oil phase is prepared:
Under normal temperature condition, it is separately added into 80 parts of white oil in a kettle., under stirring condition, slowly sequentially add emulsifying agent
9 parts of anhydrous sorbitol stearate, 0.5 part of Tween 80, stir 30～60 minutes, standby；
(2), aqueous phase is prepared:
Add 120 parts of distilled water in another reactor, under stirring condition, add 15 parts of soda, stir 30min, Ran Houyi
Secondary 36 parts of acrylamide of addition, n, 10 parts of n- DMAA, 18 parts of acrylic acid, 5 parts of amps, 3 parts of dmdaac, stirring
50 minutes；
(3), it is polymerized:
Aqueous phase is slowly added in oil phase, opens cooling water agitator speed and be adjusted to 100～110r/min and cut at a high speed
Cut 30min, then pass to nitrogen deoxygenation, about logical nitrogen 30 minutes, logical nitrogen completes, and adds 1 part of initiator, and 35 DEG C of constant temperature are anti-
Answer 3h, then heat to 60 DEG C and be polymerized 2 hours, be then shut off nitrogen, add 0.05 part of polymerization terminator, 1.5 parts of op-10, instead
Answer 30 minutes and can get produced product, then measure barrelling, sampling detection, warehouse-in.
Wherein, above-mentioned drilling fluid emulsion is coated in the production technology of inhibitor, and in step (1) and (2), speed of agitator is
45～50r/min.
Wherein, above-mentioned drilling fluid emulsion is coated in the production technology of inhibitor, in step (3), is slowly added to require
Add in 20min.
Further, present invention also offers above-mentioned drilling fluid emulsion is coated inhibitor in fresh water slurry, salt slurries and sea
Application in water drilling completion fluid.
The invention has the beneficial effects as follows:
1 this product is inverse emulsion polymerization, and outward appearance is working fluid, and removing solid product of knowing clearly from must need pelletize, baking
The production technologies such as dry, pulverizing, greatly reduce processing cost, decrease the consumption of the energy, decrease the discharge in drying course,
Decrease the pollution to environment.
2nd, overcome the harm to personnel for the dust that solid product produces in use.
3rd, this product adopts multi-component copolymer, it is to avoid hydrolysis produces the harm of waste gas.
4th, contain oil phase in this product, the lubricity of drilling fluid can be improved, it is possible to decrease the sticking coefficient of mud.
5th, this product is mobility liquid, being capable of rapid dispersion, dissolving in drilling fluid.
6th, this product has good shear resistant, and flocculating effect is excellent, and has very strong rejection.
7th, this product salt-resistance, and anticalcium magnesium ion.
8th, there is good compatibility it is adaptable to light slurry, salt slurries and sea water drilling and completing fluids, be more widely applied.
9th, this product degradable, reduces the injury to reservoir.
Brief description
Fig. 1 is the production technological process that drilling fluid emulsion of the present invention is coated inhibitor.
Specific embodiment
The invention provides a kind of drilling fluid emulsion is coated inhibitor, this inhibitor is prepared by following raw material, institute
State raw material and include following parts by weight of component: 40 parts of white oil, 0.5 part of Tween 80,9 parts of anhydrous sorbitol stearate, acrylamide
36 parts, n, 10 parts of n- DMAA, 18 parts of acrylic acid, 5 parts of amps, 100 parts of distilled water, 15 parts of soda, dmdaac 3
Part, 1.5 parts of op-10,1 part of initiator.
Wherein, above-mentioned drilling fluid emulsion is coated in inhibitor, and described dmdaac is one kind of quaternary ammonium salt, as cation
Monomer；Described op-10 is alkylphenol polyoxyethylene, as solution membrane；Described anhydrous sorbitol stearate is as emulsifying agent；
Described amps is 2- acrylamide-2-methylpro panesulfonic acid, as anionic monomer.
Wherein, above-mentioned drilling fluid emulsion is coated in inhibitor, and described initiator is redox initiator or azo
Initiator.
Preferably, above-mentioned redox initiator is benzoyl peroxide or sodium sulfite.
Further, present invention also offers above-mentioned drilling fluid emulsion is coated the production technology of inhibitor, this production work
Skill comprises the following steps:
(1), oil phase is prepared:
Under normal temperature condition, it is separately added into 80 parts of white oil in a kettle., under 45～50r/min stirring condition slowly successively
Add 9 parts of emulsifying agent anhydrous sorbitol stearate, 0.5 part of Tween 80, stir 30～60 minutes, standby；
(2), aqueous phase is prepared:
Add 120 parts of distilled water in another reactor, under 45～50r/min stirring condition, add 15 parts of soda, stirring
30min, then sequentially adds 36 parts of acrylamide, n, 10 parts of n- DMAA, 18 parts of acrylic acid, 5 parts of amps,
3 parts of dmdaac, stirs 50 minutes；
(3), it is polymerized:
Aqueous phase is slowly added in oil phase, opens cooling water agitator speed and be adjusted to 100～110r/min and cut at a high speed
Cut 30min, then pass to nitrogen deoxygenation, about logical nitrogen 30 minutes, logical nitrogen completes, and adds 1 part of initiator, and 35 DEG C of constant temperature are anti-
Answer 3h, then heat to 60 DEG C and be polymerized 2 hours, be then shut off nitrogen, add 0.05 part of polymerization terminator, 1.5 parts of op-10, instead
Answer 30 minutes and can get produced product, then measure barrelling, sampling detection, warehouse-in.
Wherein, above-mentioned drilling fluid emulsion is coated in the production technology of inhibitor, in step (3), is slowly added to require
Add in 20min.
Wherein, above-mentioned drilling fluid emulsion is coated in the production technology of inhibitor, and described polymerization terminator is that this area is normal
Use terminator.
Below by embodiment, the specific embodiment of the present invention is described further, but not therefore by the present invention
Protection domain limit in one embodiment.
Embodiment 1
The drilling fluid emulsion that the present invention provides is coated inhibitor and prepares according to following production technology:
(1), oil phase is prepared:
Under normal temperature condition, be separately added into 80 parts of white oil in a kettle., open speed of agitator be 45r/min, slowly according to
Secondary 9 parts of emulsifying agent anhydrous sorbitol stearate of addition, 0.5 part of Tween 80, stir 45 minutes, standby；
(2), aqueous phase is prepared:
Add 120 parts of distilled water in another reactor, open speed of agitator for 45r/min, add 15 parts of soda, stirring
30min, then sequentially add 36 parts of acrylamide, n, 10 parts of n- DMAA, 18 parts of acrylic acid, 5 parts of amps, sun
3 parts of ion monomer dmdaac, stirs 50 minutes；
(3), it is polymerized:
Aqueous phase is slowly added in oil phase (20min adds), opens cooling water agitator speed and be adjusted to 110r/min simultaneously
High speed shear 30min, then passes to nitrogen deoxygenation, about logical nitrogen 30 minutes, and logical nitrogen completes, and adds initiator benzoyl peroxide
Formyl chloride-1 part, 35 DEG C of isothermal reaction 3h, then heat to 60 DEG C and be polymerized 2 hours, be then shut off nitrogen, add polymerization terminator
0.05 part, 1.5 parts of membrane op-10 of solution, reaction can get produced product in 30 minutes, and then metering loads 25 kilograms of bucket
In, sampling detection, warehouse-in.
Embodiment products obtained therefrom is respectively applied in fresh water slurry, salt slurries and sea water slurry, using this area conventionally test
Method, records properties of product as shown in table 1, as seen from Table 1, each Testing index all meets the requirements.
Table 1.
Claims (7)
1. drilling fluid emulsion is coated inhibitor it is characterised in that this inhibitor is prepared by following raw material, described raw material bag
Include following parts by weight of component: 40 parts of white oil, 0.5 part of Tween 80,9 parts of anhydrous sorbitol stearate, 36 parts of acrylamide, n,
10 parts of n- DMAA, 18 parts of acrylic acid, 5 parts of amps, 100 parts of distilled water, 15 parts of soda, 3 parts of dmdaac, op-
10 1.5 parts, 1 part of initiator.
2. drilling fluid emulsion is coated inhibitor it is characterised in that described initiator is oxidoreduction according to claim 1
Initiator or azo-initiator.
3. drilling fluid emulsion is coated inhibitor it is characterised in that described redox initiator is according to claim 2
Benzoyl peroxide or sodium sulfite.
4. drilling fluid emulsion described in any one of claims 1 to 3 is coated the production technology of inhibitor it is characterised in that this life
Production. art comprises the following steps:
(1), oil phase is prepared:
Under normal temperature condition, it is separately added into 80 parts of white oil in a kettle., under stirring condition, slowly sequentially add anhydrous sorbitol
9 parts of stearate, 0.5 part of Tween 80, stir 30～60 minutes, standby；
(2), aqueous phase is prepared:
Add 120 parts of distilled water in another reactor, under stirring condition, add 15 parts of soda, stir 30min, then add successively
Enter 36 parts of acrylamide, n, 10 parts of n- DMAA, 18 parts of acrylic acid, 5 parts of amps, 3 parts of dmdaac, stir 50 points
Clock；
(3), it is polymerized:
Aqueous phase is slowly added in oil phase, opens cooling water agitator speed and be adjusted to 100～110r/min high speed shear
30min, then passes to nitrogen deoxygenation, about logical nitrogen 30 minutes, and logical nitrogen completes, and adds 1 part of initiator, 35 DEG C of isothermal reactions
3h, then heats to 60 DEG C of polymerization 2h, is then shut off nitrogen, adds 0.05 part of polymerization terminator, 1.5 parts of membrane op-10 of solution,
Reaction can get produced product in 30 minutes, then measures barrelling, sampling detection, warehouse-in.
5. according to claim 4 drilling fluid emulsion be coated inhibitor production technology it is characterised in that step (1) and
(2), in, speed of agitator is 45～50r/min.
6. drilling fluid emulsion is coated the production technology of inhibitor it is characterised in that in step (3) according to claim 4,
It is slowly added to require to add in 20min.
7. drilling fluid emulsion described in any one of claims 1 to 3 is coated inhibitor and is drilled well in fresh water slurry, salt slurries and sea water
Application in liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610704431.5A CN106349426A (en) | 2016-08-22 | 2016-08-22 | Emulsion encapsulating and inhibiting agent for drilling liquid, and production technology and application of emulsion encapsulating and inhibiting agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610704431.5A CN106349426A (en) | 2016-08-22 | 2016-08-22 | Emulsion encapsulating and inhibiting agent for drilling liquid, and production technology and application of emulsion encapsulating and inhibiting agent |
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| Publication Number | Publication Date |
|---|---|
| CN106349426A true CN106349426A (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610704431.5A Pending CN106349426A (en) | 2016-08-22 | 2016-08-22 | Emulsion encapsulating and inhibiting agent for drilling liquid, and production technology and application of emulsion encapsulating and inhibiting agent |
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| Country | Link |
|---|---|
| CN (1) | CN106349426A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021941A (en) * | 2018-09-20 | 2018-12-18 | 河北硅谷化工有限公司 | Drilling fluid flocculant |
| CN110684514A (en) * | 2019-12-09 | 2020-01-14 | 东营市金美化工有限公司 | Coating agent for drilling fluid and microemulsion preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021941A (en) * | 2018-09-20 | 2018-12-18 | 河北硅谷化工有限公司 | Drilling fluid flocculant |
| CN109021941B (en) * | 2018-09-20 | 2022-01-18 | 河北硅谷化工有限公司 | Coating flocculant for drilling fluid |
| CN110684514A (en) * | 2019-12-09 | 2020-01-14 | 东营市金美化工有限公司 | Coating agent for drilling fluid and microemulsion preparation method and application thereof |
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Application publication date: 20170125 |
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