CN106854259B - A kind of water-base drilling fluid fluid loss additive and preparation method thereof - Google Patents
A kind of water-base drilling fluid fluid loss additive and preparation method thereof Download PDFInfo
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- CN106854259B CN106854259B CN201510900296.7A CN201510900296A CN106854259B CN 106854259 B CN106854259 B CN 106854259B CN 201510900296 A CN201510900296 A CN 201510900296A CN 106854259 B CN106854259 B CN 106854259B
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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
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
- C08F251/02—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/18—Clay-containing compositions characterised by the organic compounds
- C09K8/22—Synthetic organic compounds
- C09K8/24—Polymers
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Abstract
The present invention relates to a kind of water-base drilling fluid fluid loss additives and preparation method thereof, the preparation method comprises the following steps: being sequentially added in water in proportion by monomer containing sulfonic group, the organic silicon monomer containing unsaturated double-bond, polyanion fiber, adjusting pH is 7-8, reacts and is made under the conditions of initiator.Water base fluid loss additive provided by the invention all has excellent filtrate loss controllability in salt water and saturated brine, heat-resisting property up to 180 DEG C and preparation method and required appointed condition it is simple, it is easy to implement.
Description
Technical field
The present invention relates to a kind of water-base drilling fluid fluid loss additive and preparation method thereof, water-base drilling fluids prepared by the present invention
It is suitable for oil drilling field of engineering technology with fluid loss additive.
Background technique
Drilling fluid is the important component of Oilfield Chemicals with inorganic agent, is the biggish product of oil field chemical agent dosage
One of, filtrate reducer for drilling fluid one of maximum, most active additive for drilling fluid of research and development as a kind of product sales volume,
There is consequence in oil drilling.Filtrate reducer for drilling fluid can play filtrate reducing in drilling fluid and improve mud cake matter
The effects of amount is maintenance stabilizing mud properties, improves drilling fluid rheology, reduces harmful liquid to stratum leak-off, Yi Jiwen
The important chemical treatments determined the borehole wall, guarantee hole diameter rule and oil-gas Layer.It prevents drilling failure for safe and efficient drilling well
There is important role.
Fluid loss additive can be divided into following four classes according to the raw material sources of synthesis fluid loss additive: natural and modified natural high score
Subclass, synthesized polymer species, the fluid loss additive and synthetic resin prepared using industrial waste and chemical by-product.Wherein day
Right and modified natural polymer class fluid loss additive is the important component of fluid loss additive in oil mining, and material source is rich
It is rich, cheap, it is ep-type material, application prospect is very wide if cellulose has biological degradability.Cellulose is by being permitted
The long chain-like macromolecule compound that polycycle glucose unit is constituted can be made a series of drilling fluids as raw material using cellulose and drop
Fluid loss agents, wherein most commonly used is polyanion cellulose (PAC), the mud containing PAC can make the borehole wall form Bao Erjian, infiltration
The low filter cake of property, reduces fluid loss.With the continuous expansion in petroleum exploration in China field, drills the big high temperature well of difficulty, answers
Miscellaneous well, horizontal well become inexorable trend, this just proposes higher want to polyanion cellulose heat-resisting property and anti-salt property
It asks, existing polyanion cellulose will more or less degrade failure in the drilling fluid environment more than 130 DEG C, even if property
Can be also just 140-150 DEG C of preferable polyanion cellulose operating limit temperature, and anti-salt property is insufficient.
Summary of the invention
It is an object of the invention to provide a kind of be used in greatly for existing polyanion cellulose fluid loss additive performance deficiency
Still there is excellent filtrate loss controllability, and the water base filtrate reducing of salt resistance extremely saturation under the drilling fluid environment of 180 DEG C of high temperature
Agent and preparation method thereof.
What the purpose of the present invention was achieved through the following technical solutions: a kind of water-base drilling fluid fluid loss additive, feature exist
In including following component: polyanion cellulose, monomer containing sulfonic group, containing silicone hydroxyl monomer, initiator, each component quality hundred
Divide content are as follows: polyanion cellulose: 20-40%, monomer containing sulfonic group: 10-30%, the organic silicon monomer containing unsaturated double-bond:
10-30%, initiator: 0.1-1%, surplus are water；The pH of the filtrate reducer for drilling fluid is 7-8.
The preparation method of the water-base drilling fluid fluid loss additive, it is characterised in that comprise the steps of: in proportion in water
In sequentially add monomer containing sulfonic group, the organic silicon monomer containing unsaturated double-bond, polyanion cellulose, adjusting pH is 7-8,
It stirs evenly, is warming up to 50-70 DEG C, initiator is added, is stirred to react 2-4h, is cooled to room temperature, water is made after drying, crushing
Base drilling fluid fluid loss additive.
The monomer containing sulfonic group is vinyl sulfonic acid, acrylamide butyl sulfonic acid, 2- acrylamido dodecyl
One of sulfonic acid or several mixtures.
The organic silicon monomer containing unsaturated double-bond is methyl allyl acyloxypropyl trimethoxysilane, metering system
Acyloxymethyl dimethoxysilane, methacryloxypropyl triethoxysilane, methacryloxypropyl diethoxy first
One or more of base silane mixture.
The initiator is one or more of ammonium persulfate, potassium peroxydisulfate, Cericammoniumsulfate mixture.
The pH value is adjusted using potassium hydroxide solution.
The invention has the following advantages that
Water base fluid loss additive of the invention is biodegradable, still has under the drilling fluid environment of 180 DEG C of -200 DEG C of high temperature
There is excellent filtrate loss controllability, and salt resistance is extremely saturated, and preparation method and required appointed condition are simple, without post-processing, easily
In implementation.
Specific embodiment
In order to better understand the present invention, the content of invention is furtherd elucidate below with reference to embodiment, but of the invention interior
Appearance is not limited only to the following examples.
Embodiment 1
Polyanion cellulose: 30%, vinyl sulfonic acid: 10%, methyl allyl acyloxypropyl trimethoxysilane: 10%, mistake
Ammonium sulfate: 0.5%, remaining is water (being mass ratio).Suitable water and second is added at first into reaction kettle according to charging order
Olefin sulfonic acid: 10%, methyl allyl acyloxypropyl trimethoxysilane: 10%, anionic cellulose: 30%, start to stir, use
Potassium hydroxide adjusts pH value 7-8, is sufficiently stirred, and temperature reaction kettle maintains constant temperature, addition ammonium persulfate to 60 DEG C: 0.1%, continue
2h is stirred, is cooled to room temperature, water-base drilling fluid fluid loss additive is made after drying, crushing.
Embodiment 2
Polyanion cellulose: 20%, vinyl sulfonic acid: 10%, methacryloxymethyl dimethoxysilane: 30%, mistake
Ammonium sulfate: 1%, remaining is water (being mass ratio).Suitable water and ethylene is added at first into reaction kettle according to charging order
Base sulfonic acid: 15%, methacryloxymethyl dimethoxysilane: 10%, anionic cellulose: 20%, start to stir, uses hydrogen
Potassium oxide adjusts pH value 7-8, is sufficiently stirred, and temperature reaction kettle maintains constant temperature, addition ammonium persulfate to 60 DEG C: 1%, it is lasting to stir
2h is cooled to room temperature, and water-base drilling fluid fluid loss additive is made after drying, crushing.
Embodiment 3
Polyanion cellulose: 25%, vinyl sulfonic acid: 20%, methacryloxypropyl triethoxysilane: 20%, mistake
Potassium sulfate: 0.5%, remaining is water (being mass ratio).Suitable water and second is added at first into reaction kettle according to charging order
Olefin sulfonic acid: 20%, methacryloxypropyl triethoxysilane: 20%, anionic cellulose: 25%, start to stir, use
Potassium hydroxide adjusts pH value 7-8, is sufficiently stirred, and temperature reaction kettle maintains constant temperature, addition potassium peroxydisulfate to 60 DEG C: 0.5%, continue
2h is stirred, is cooled to room temperature, water-base drilling fluid fluid loss additive is made after drying, crushing.
Embodiment 4
Polyanion cellulose: 20%, vinyl sulfonic acid: 30%, methacryloxypropyl diethoxymethylsilane:
10%, Cericammoniumsulfate: 1%, remaining is water (being mass ratio).According to charging order be added at first into reaction kettle suitable water with
And vinyl sulfonic acid: 30%, methacryloxypropyl diethoxymethylsilane: 10%, anionic cellulose: 20%, start to stir
It mixes, adjusts pH value 7-8 using potassium hydroxide, be sufficiently stirred, temperature reaction kettle maintains constant temperature to 60 DEG C, Cericammoniumsulfate is added:
1%, 2h is persistently stirred, is cooled to room temperature, water-base drilling fluid fluid loss additive is made after drying, crushing.
Embodiment 5
Polyanion cellulose: 40%, acrylamide butyl sulfonic acid: 10%, methyl allyl acyloxypropyl trimethoxysilane:
10%, ammonium persulfate: 1%, remaining is water (being mass ratio).According to charging order be added at first into reaction kettle suitable water with
And acrylamide butyl sulfonic acid: 10%, methyl allyl acyloxypropyl trimethoxysilane: 10%, anionic cellulose: 40%, start
Stirring adjusts pH value 7-8 using potassium hydroxide, is sufficiently stirred, and temperature reaction kettle maintains constant temperature to 60 DEG C, and ammonium persulfate is added:
1%, 2h is persistently stirred, is cooled to room temperature, water-base drilling fluid fluid loss additive is made after drying, crushing.
Embodiment 6
Polyanion cellulose: 20%, acrylamide butyl sulfonic acid: 20%, methacryloxymethyl dimethoxysilane:
10%, potassium peroxydisulfate: 0.5%, remaining is water (being mass ratio).Suitable water is added at first into reaction kettle according to charging order
And acrylamide butyl sulfonic acid: 20%, methacryloxymethyl dimethoxysilane: 10%, anionic cellulose: 20%, it opens
Begin to stir, adjust pH value 7-8 using potassium hydroxide, be sufficiently stirred, temperature reaction kettle maintains constant temperature to 60 DEG C, and persulfuric acid is added
Potassium: 0.5%, 2h is persistently stirred, is cooled to room temperature, water-base drilling fluid fluid loss additive is made after drying, crushing.
Embodiment 7
Polyanion cellulose: 20%, acrylamide butyl sulfonic acid: 10%, methacryloxypropyl triethoxysilane:
30%, Cericammoniumsulfate: 0.5%, remaining is water (being mass ratio).Suitable water is added at first into reaction kettle according to charging order
And acrylamide butyl sulfonic acid: 20%, methacryloxypropyl triethoxysilane: 30%, anionic cellulose: 20%, it opens
Begin to stir, adjust pH value 7-8 using potassium hydroxide, be sufficiently stirred, temperature reaction kettle maintains constant temperature to 60 DEG C, and cerous sulfate is added
Ammonium: 0.5%, 2h is persistently stirred, is cooled to room temperature, water-base drilling fluid fluid loss additive is made after drying, crushing.
Embodiment 8
Polyanion cellulose: 35%, acrylamide butyl sulfonic acid: 10%, methacryloxypropyl diethoxymethyl
Silane: 10%, ammonium persulfate: 1%, remaining is water (being mass ratio).It is added at first according to charging order into reaction kettle appropriate
Water and acrylamide butyl sulfonic acid: 10%, methacryloxypropyl diethoxymethylsilane: 10%, anion fiber
Element: 35%, start to stir, adjust pH value 7-8 using potassium hydroxide, be sufficiently stirred, temperature reaction kettle maintains constant temperature, add to 60 DEG C
Enter ammonium persulfate: 1%, 2h is persistently stirred, is cooled to room temperature, water-base drilling fluid fluid loss additive is made after drying, crushing.
Embodiment 9
Polyanion cellulose: 40%, 2- acrylamido dodecyl sodium sulfonate: 10%, methacryloxypropyl front three
Oxysilane: 10%, ammonium persulfate: 1%, remaining is water (being mass ratio).It is added at first according to charging order into reaction kettle
Suitable water and 2- acrylamido dodecyl sodium sulfonate: 10%, methyl allyl acyloxypropyl trimethoxysilane: 10%, yin
Ion fiber element: 40%, start to stir, adjust pH value 7-8 using potassium hydroxide, be sufficiently stirred, temperature reaction kettle is to 60 DEG C, dimension
Constant temperature is held, addition ammonium persulfate: 1%, 2h is persistently stirred, is cooled to room temperature, water-base drilling fluid drop is made after drying, crushing
Fluid loss agents.
Embodiment 10
Polyanion cellulose: 30%, 2- acrylamido dodecyl sodium sulfonate: 20%, methacryloxymethyl diformazan
Oxysilane: 10%, potassium peroxydisulfate: 1%, remaining is water (being mass ratio).It is added at first according to charging order into reaction kettle
Suitable water and 2- acrylamido dodecyl sodium sulfonate: 20%, methacryloxymethyl dimethoxysilane: 10%, yin
Ion fiber element: 30%, start to stir, adjust pH value 7-8 using potassium hydroxide, be sufficiently stirred, temperature reaction kettle is to 60 DEG C, dimension
Constant temperature is held, addition potassium peroxydisulfate: 1%, 2h is persistently stirred, is cooled to room temperature, water-base drilling fluid drop is made after drying, crushing
Fluid loss agents.
Embodiment 11
Polyanion cellulose: 20%, 2- acrylamido dodecyl sodium sulfonate: 30%, three second of methacryloxypropyl
Oxysilane: 10%, potassium peroxydisulfate: 1%, remaining is water (being mass ratio).It is added at first according to charging order into reaction kettle
Suitable water and 2- acrylamido dodecyl sodium sulfonate: 30%, methacryloxypropyl triethoxysilane: 10%, yin
Ion fiber element: 20%, start to stir, adjust pH value 7-8 using potassium hydroxide, be sufficiently stirred, temperature reaction kettle is to 60 DEG C, dimension
Constant temperature is held, addition potassium peroxydisulfate: 1%, 2h is persistently stirred, is cooled to room temperature, water-base drilling fluid drop is made after drying, crushing
Fluid loss agents.
Embodiment 12
Polyanion cellulose: 20%, 2- acrylamido dodecyl sodium sulfonate: 10%, methacryloxypropyl diethyl
Oxygroup methyl-monosilane: 20%, Cericammoniumsulfate: 0.5%, remaining is water (being mass ratio).According to charging order into reaction kettle most
First it is added suitable water and 2- acrylamido dodecyl sodium sulfonate: 30%, methacryloxypropyl triethoxysilane:
20%, anionic cellulose: 20%, start to stir, adjusts pH value 7-8 using potassium hydroxide, be sufficiently stirred, temperature reaction kettle to 60
DEG C, constant temperature is maintained, addition Cericammoniumsulfate: 0.5%, 2h is persistently stirred, is cooled to room temperature, water-based drilling is made after drying, crushing
Liquid fluid loss additive.
Embodiment 13
Heat and salinity tolerance and filtrate loss controllability evaluation are carried out to embodiment 1-12 sample.
4% brine mud is prepared: 1000mL water+40g sodium chloride+40g bentonite+1.6g sodium carbonate, high-speed stirred 20min,
For 24 hours, survey its filter loss is 92mL to curing in airtight condition.
The water base slurry of saturated salt is prepared: 1000mL water+300g sodium chloride+40g bentonite+1.6g sodium carbonate, high-speed stirred
20min, for 24 hours, survey its filter loss is 106mL to curing in airtight condition.
Performance test in 1 4% brine mud of table
| Room temperature filter loss (mL) | Filter loss (mL) after 180 DEG C of heat rolling 16h | |
| 4% brine mud | 92 | 120 |
| 1 sample of+1% embodiment of 4% brine mud | 7.6 | 9.4 |
| 2 sample of+1% embodiment of 4% brine mud | 6.4 | 8.8 |
| 3 sample of+1% embodiment of 4% brine mud | 6.6 | 9.2 |
| 4 sample of+1% embodiment of 4% brine mud | 6.2 | 8.4 |
| 5 sample of+1% embodiment of 4% brine mud | 7.8 | 10.0 |
| 6 sample of+1% embodiment of 4% brine mud | 6.6 | 8.7 |
| 7 sample of+1% embodiment of 4% brine mud | 6.4 | 8.6 |
| 8 sample of+1% embodiment of 4% brine mud | 7.6 | 9.6 |
| 9 sample of+1% embodiment of 4% brine mud | 8.0 | 10.2 |
| 10 sample of+1% embodiment of 4% brine mud | 7.4 | 9.4 |
| 11 sample of+1% embodiment of 4% brine mud | 6.6 | 8.6 |
| 12 sample of+1% embodiment of 4% brine mud | 6.8 | 8.9 |
Performance test in the water base slurry of 2 saturated salt of table
| Room temperature filter loss (mL) | Filter loss (mL) after 180 DEG C of heat rolling 16h | |
| The water base slurry of saturated salt | 105 | 185 |
| Water base slurry 1 sample of+1% embodiment of saturated salt | 8.8 | 11.4 |
| Water base slurry 2 sample of+1% embodiment of saturated salt | 7.6 | 9.6 |
| Water base slurry 3 sample of+1% embodiment of saturated salt | 7.9 | 10.0 |
| Water base slurry 4 sample of+1% embodiment of saturated salt | 7.4 | 9.4 |
| Water base slurry 5 sample of+1% embodiment of saturated salt | 9.0 | 11.8 |
| Water base slurry 6 sample of+1% embodiment of saturated salt | 8.0 | 10.2 |
| Water base slurry 7 sample of+1% embodiment of saturated salt | 7.6 | 9.7 |
| Water base slurry 8 sample of+1% embodiment of saturated salt | 8.6 | 10.8 |
| Water base slurry 9 sample of+1% embodiment of saturated salt | 10.0 | 12.6 |
| Water base slurry 10 sample of+1% embodiment of saturated salt | 8.2 | 10.2 |
| Water base slurry 11 sample of+1% embodiment of saturated salt | 7.8 | 10.0 |
| Water base slurry 12 sample of+1% embodiment of saturated salt | 8.0 | 10.3 |
From table 1, table 2 data it can be seen that fluid loss additive of the invention in 4% brine mud and the water base slurry of saturated salt
In all have good filtrate loss controllability, and heat-resisting property reaches 180 DEG C.
Claims (5)
1. a kind of water-base drilling fluid fluid loss additive, it is characterised in that include following component: polyanion cellulose contains sulfonic group
Monomer, the organic silicon monomer containing unsaturated double-bond, initiator, each component mass percentage are as follows:
Polyanion cellulose: 20-40%, monomer containing sulfonic group: 10-30%, the organic silicon monomer containing unsaturated double-bond: 10-
30%, initiator: 0.1-1%, surplus are water；The pH of the filtrate reducer for drilling fluid is 7-8；It is described containing unsaturated double-bond
Organic silicon monomer is methyl allyl acyloxypropyl trimethoxysilane, methacryloxymethyl dimethoxysilane, methyl-prop
One or more of alkene monomethacryloxypropyl triethoxysilane, methacryloxypropyl diethoxymethylsilane mixture.
2. the preparation method of water-base drilling fluid fluid loss additive according to claim 1, it is characterised in that comprise the steps of:
It is sequentially added in proportion by monomer containing sulfonic group, the organic silicon monomer containing unsaturated double-bond, polyanion cellulose, is adjusted in water
Section pH is 7-8, stirs evenly, is warming up to 50-70 DEG C of addition initiator, is stirred to react 2-4h, and cooling room temperature through drying, crushes
Water-base drilling fluid fluid loss additive is made afterwards.
3. water-base drilling fluid fluid loss additive according to claim 1, it is characterised in that the monomer containing sulfonic group is
One of vinyl sulfonic acid, acrylamide butyl sulfonic acid, 2- acrylamido dodecyl sodium sulfonate or several mixtures.
4. water-base drilling fluid fluid loss additive according to claim 1, it is characterised in that the initiator is persulfuric acid
One or more of ammonium, potassium peroxydisulfate, Cericammoniumsulfate mixture.
5. the preparation method of water-base drilling fluid fluid loss additive according to claim 2, it is characterised in that the pH value is
It is adjusted using potassium hydroxide solution.
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| CN108774508A (en) * | 2018-05-31 | 2018-11-09 | 广西大学 | A kind of starch base organosilicon fire-resistant fluid loss additive and preparation method thereof |
| CN108774507A (en) * | 2018-05-31 | 2018-11-09 | 钦州学院 | A kind of mixing fluid loss additive and preparation method thereof |
| CN108774505A (en) * | 2018-08-16 | 2018-11-09 | 张建华 | A kind of fluid loss additive for boring fluid and its preparation method and application |
| CN109837074B (en) * | 2019-03-27 | 2021-03-09 | 中国石油大学(华东) | Fluid loss additive composition and application thereof, water-based drilling fluid and application thereof |
| CN111978471B (en) * | 2019-05-21 | 2023-05-16 | 中石化南京化工研究院有限公司 | Filtrate reducer for drilling fluid and preparation method thereof |
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| CN102174314A (en) * | 2011-03-09 | 2011-09-07 | 西南石油大学 | Organic silicon fluid loss additive and preparation method thereof |
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| CN102174314A (en) * | 2011-03-09 | 2011-09-07 | 西南石油大学 | Organic silicon fluid loss additive and preparation method thereof |
| CN102757773A (en) * | 2011-04-26 | 2012-10-31 | 中国石油化工集团公司 | High-inhibition non-solid phase alkaline completion fluid |
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Address after: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699 Patentee after: China Petroleum & Chemical Corp. Patentee after: SINOPEC NANJING CHEMICAL RESEARCH INSTITUTE Co.,Ltd. Address before: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699 Patentee before: China Petroleum & Chemical Corp. Patentee before: Nanhua Group Research Institute |
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