CN110184039A - Drilling fluid high temperature resistant thinner - Google Patents
Drilling fluid high temperature resistant thinner Download PDFInfo
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- CN110184039A CN110184039A CN201910546640.5A CN201910546640A CN110184039A CN 110184039 A CN110184039 A CN 110184039A CN 201910546640 A CN201910546640 A CN 201910546640A CN 110184039 A CN110184039 A CN 110184039A
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- parts
- drilling fluid
- high temperature
- temperature resistant
- sodium
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Classifications
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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
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/34—Lubricant additives
Abstract
Drilling fluid high temperature resistant thinner, the invention belongs to the technical fields of oil drilling drilling fluid, according to parts by weight, including following raw material: 15-20 parts of sodium chloride, 10-18 parts of silicon fluoride, 5-15 parts of sodium sulphate, 0-10 parts of magnesium sulfide, 60-150 parts of calcium sulfate, 5-15 parts of aluminium chloride, 2-5 parts of maleic anhydride, 10-20 parts of potassium phosphate, 5-10 parts of sodium metasilicate, 8-12 parts of silica, 2-3 parts of active carbon.Drilling fluid high temperature resistant thinner of the present invention dilution with super strength, viscosity reduction ability, the anti-collapse function of retaining wall, high-temperature resistance are strong, the effects of having viscosity reduction to cut drilling fluid system, lubricate, defoam.
Description
Technical field
The invention belongs to the technical fields of oil drilling drilling fluid, and in particular to drilling fluid high temperature resistant thinner.This hair
The dilution with super strength of bright drilling fluid high temperature resistant thinner, viscosity reduction ability, the anti-collapse function of retaining wall, high-temperature resistance are strong, to brill
The effects of well liquid system has viscosity reduction to cut, lubricates, defoaming.
Background technique
To guarantee that drilling fluid has good rheological property during oil exploration, often need using thinner.With oil
Gas exploration exploitation is deepened continuously and is expanded, and more ground augers meet " three high " and all kinds of bad grounds, the difficulty of drilling liquid technology by
Gradually increase, especially to complex geological condition high temperature deep well, ultradeep well, the comprehensive rheological characteristic for solving drilling fluid system, inhibition,
Contradiction between temperature resistance etc. is particularly difficult, therefore the high temperature resistant drilling fluids system of development of new becomes current drilling liquid technology
One important topic.
Summary of the invention
The object of the present invention is to provide a kind of drilling fluid high temperature resistant thinners.
The present invention be realize its purpose the technical solution adopted is that:
Drilling fluid high temperature resistant thinner, according to parts by weight, including following raw material: 15-20 parts of sodium chloride, silicon fluoride
10-18 parts, 5-15 parts of sodium sulphate, 0-10 parts of magnesium sulfide, 60-150 parts of calcium sulfate, 5-15 parts of aluminium chloride, 2-5 parts of maleic anhydride,
10-20 parts of potassium phosphate, 5-10 parts of sodium metasilicate, 8-12 parts of silica, 2-3 parts of active carbon.
The drilling fluid high temperature resistant thinner, according to parts by weight, including following raw material: 16 parts of sodium chloride, fluorination
12 parts of silicon, 10 parts of sodium sulphate, 8 parts of magnesium sulfide, 76 parts of calcium sulfate, 10 parts of aluminium chloride, 3 parts of maleic anhydride, 16 parts of potassium phosphate, silicic acid
8 parts of sodium, 10 parts of silica, 2 parts of active carbon.
The drilling fluid high temperature resistant thinner, according to parts by weight, including following raw material: 15 parts of sodium chloride, fluorination
10 parts of silicon, 5 parts of sodium sulphate, 150 parts of calcium sulfate, 15 parts of aluminium chloride, 2 parts of maleic anhydride, 10 parts of potassium phosphate, 10 parts of sodium metasilicate, silicon
8 parts of stone, 3 parts of active carbon.
The drilling fluid high temperature resistant thinner, according to parts by weight, including following raw material: 20 parts of sodium chloride, fluorination
18 parts of silicon, 15 parts of sodium sulphate, 10 parts of magnesium sulfide, 60 parts of calcium sulfate, 5 parts of aluminium chloride, 5 parts of maleic anhydride, 20 parts of potassium phosphate, silicic acid
5 parts of sodium, 12 parts of silica, 2 parts of active carbon.
The drilling fluid high temperature resistant thinner further includes sulfonation 2- vinyl naphthalene-maleic of following parts by weight
2-5 parts of diacid copolymer.
The drilling fluid high temperature resistant thinner, according to parts by weight, including following raw material: 18 parts of sodium chloride, fluorination
15 parts of silicon, 10 parts of sodium sulphate, 5 parts of magnesium sulfide, 95 parts of calcium sulfate, 10 parts of aluminium chloride, 4 parts of maleic anhydride, 15 parts of potassium phosphate, silicic acid
7 parts of sodium, 9 parts of silica, 2 parts of active carbon, sulfonation 2- vinyl naphthalene -3 parts of acid/maleic acid copolymers.
The beneficial effects of the present invention are:
It is drilling fluid high temperature resistant thinner of the present invention dilution with super strength, viscosity reduction ability, the anti-collapse function of retaining wall, resistant to high temperatures
The effects of ability is strong, has viscosity reduction to cut drilling fluid system, lubricates, defoams.And drilling fluid in drilling process can be eliminated and immerse stratum
Caused shale hydration expansion, improves the stability of the borehole wall, maintenance phase is long after mud conditioning.This product be it is a kind of it is nontoxic, without dirt
The environmental type new product of dye.
Sodium chloride, silicon fluoride, sodium sulphate, magnesium sulfide, calcium sulfate, aluminium chloride share, and effect is improvement of mud cake, toughness
And lubricity.
Effect resistant to high temperatures is played the role of in the addition of sodium chloride, and hydrophobicity, the addition of sodium sulphate are played in the addition of silicon fluoride
Play the role of heat stabilization, the addition of magnesium sulfide and calcium sulfate, which is played, improves intensity, and the addition of aluminium chloride is played lubrication and made
Play the role of viscosity reduction with, the addition of potassium phosphate, the addition of sodium metasilicate, silica and active carbon is played loose, prevents from bonding.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below.
One, specific embodiment
Embodiment 1
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 16g, silicon fluoride 12g, sodium sulphate 10g, vulcanization
Magnesium 8g, calcium sulfate 76g, aluminium chloride 10g, maleic anhydride 3g, potassium phosphate 16g, sodium metasilicate 8g, silica 10g, active carbon 2g.
Embodiment 2
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 15g, silicon fluoride 10g, sodium sulphate 5g, calcium sulfate
150g, aluminium chloride 15g, maleic anhydride 2g, potassium phosphate 10g, sodium metasilicate 10g, silica 8g, active carbon 3g.
Embodiment 3
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 20g, silicon fluoride 18g, sodium sulphate 15g, vulcanization
Magnesium 10g, calcium sulfate 60g, aluminium chloride 5g, maleic anhydride 5g, potassium phosphate 20g, sodium metasilicate 5g, silica 12g, active carbon 2g.
Embodiment 4
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 18g, silicon fluoride 15g, sodium sulphate 10g, vulcanization
Magnesium 5g, calcium sulfate 95g, aluminium chloride 10g, maleic anhydride 4g, potassium phosphate 15g, sodium metasilicate 7g, silica 9g, active carbon 2g.
Embodiment 5
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 17g, silicon fluoride 16g, sodium sulphate 8g, magnesium sulfide
2g, calcium sulfate 130g, aluminium chloride 13g, maleic anhydride 3g, potassium phosphate 12g, sodium metasilicate 9g, silica 11g, active carbon 2g.
Embodiment 6
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 19g, silicon fluoride 13g, sodium sulphate 12g, vulcanization
Magnesium 4g, calcium sulfate 80g, aluminium chloride 9g, maleic anhydride 4g, potassium phosphate 17g, sodium metasilicate 6g, silica 10g, active carbon 3g.
Embodiment 7
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 16g, silicon fluoride 12g, sodium sulphate 10g, vulcanization
Magnesium 8g, calcium sulfate 76g, aluminium chloride 10g, maleic anhydride 3g, potassium phosphate 16g, sodium metasilicate 8g, silica 10g, active carbon 2g, sulfonation
2- vinyl naphthalene-acid/maleic acid copolymers 4g.
Embodiment 8
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 15g, silicon fluoride 10g, sodium sulphate 5g, calcium sulfate
150g, aluminium chloride 15g, maleic anhydride 2g, potassium phosphate 10g, sodium metasilicate 10g, silica 8g, active carbon 3g, sulfonation 2- vinyl
Naphthalene-acid/maleic acid copolymers 2g.
Embodiment 9
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 20g, silicon fluoride 18g, sodium sulphate 15g, vulcanization
Magnesium 10g, calcium sulfate 60g, aluminium chloride 5g, maleic anhydride 5g, potassium phosphate 20g, sodium metasilicate 5g, silica 12g, active carbon 2g, sulfonation
2- vinyl naphthalene-acid/maleic acid copolymers 5g.
Embodiment 10
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 18g, silicon fluoride 15g, sodium sulphate 10g, vulcanization
Magnesium 5g, calcium sulfate 95g, aluminium chloride 10g, maleic anhydride 4g, potassium phosphate 15g, sodium metasilicate 7g, silica 9g, active carbon 2g, sulfonation 2-
Vinyl naphthalene-acid/maleic acid copolymers 3g.
Embodiment 11
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 17g, silicon fluoride 16g, sodium sulphate 8g, magnesium sulfide
2g, calcium sulfate 130g, aluminium chloride 13g, maleic anhydride 3g, potassium phosphate 12g, sodium metasilicate 9g, silica 11g, active carbon 2g, sulfonation 2-
Vinyl naphthalene-acid/maleic acid copolymers 5g.
Embodiment 12
Drilling fluid high temperature resistant thinner, including following raw material: sodium chloride 19g, silicon fluoride 13g, sodium sulphate 12g, vulcanization
Magnesium 4g, calcium sulfate 80g, aluminium chloride 9g, maleic anhydride 4g, potassium phosphate 17g, sodium metasilicate 6g, silica 10g, active carbon 3g, sulfonation 2-
Vinyl naphthalene-acid/maleic acid copolymers 2g.
Sulfonation 2- vinyl naphthalene-acid/maleic acid copolymers used in the present invention are by 2- vinyl naphthalene and maleic
Diacid first passes through diene polymerization reaction, and then sulfonation is handled again.Such as synthesized by following methods: by molar ratio 1:1's
Maleic acid and 2- vinyl naphthalene are added in organic solvent (such as n,N-Dimethylformamide), and BPO is added and causes, heating
It is reacted 3 hours or so to 100 DEG C or so, is cooled to room temperature, is spin-dried for solvent, products therefrom is easy in dichloroethanes, heated up, used
Oleum sulfonation 2 hours or so, adjust pH to neutrality, dry sulfonation 2- vinyl naphthalene-acid/maleic acid copolymers.
Two, performance test
1, the measurement of mode of appearance, pH value, water capacity, viscosity break ratio
1. measuring pH value
Weighing the resulting drilling fluid of above-described embodiment 1-12 uses high temperature resistant thinner as style, weighs style 1.0g, sets
100ml distilled water stirring and dissolving is added in beaker, surveys its pH value with pH test paper.
2. measuring water capacity:
It weighs style 5.0g to be put into the weighing bottle of constant weight, puts and dry to constant weight in the case of 105 ± 3 DEG C in an oven,
It baking 3 hours, taking-up is placed in drier, and it is cooled to room temperature, is calculated as follows:
Water capacity=(m2-m3)/m1× 100%
In formula: m1- sample mass, g；
m2- dry preceding sample and weighing bottle quality, g；
m3Sample and weighing bottle quality, g after-baking；
3. measuring viscosity break ratio；
In distilled water: bentonite: sodium carbonate=100:6:0.21 (calculates) configuration base slurry in test native ratio 3.5%,
High-speed stirred 20min, then sealed maintenance is for 24 hours.Base slurry after taking maintenance, is added blanc fixe with low-speed agitator while stirring,
Base pulp density is increased to 1.50g/cm3, then 30min is stirred at low speed, it is measured when revolving speed is 100r/min with viscosity immediately
Viscosity number, value should in 50 ± 5 ranges, otherwise should adjust soil dosage.
It takes configured base slurry 400ml that 4.0g thinner (dry powder) is added, after high-speed stirred 20min, uses viscosimeter immediately
Viscosity number when its revolving speed is 100r/min is surveyed, then calculates its viscosity break ratio by following equation (1).
Configured base slurry 400ml is taken, is added 6.0 thinners (dry powder), high-speed stirred 20min, is packed into high-temperature tank, in
It is taken out after heat rolling 16h at 180 DEG C, cooling to open, high-speed stirred 10min, when with viscosity, to measure its revolving speed be 100r/min immediately
Then viscosity number calculates its viscosity rate by following equation (2).
DI1=(Φ 100- Φ 1001)/Φ 100 × 100% (1)
DI2=(Φ 100- Φ 1002)/Φ 100 × 100% (2)
In formula: DI1- room temperature viscosity break ratio, %；
DI2Viscosity break ratio after -180 DEG C of agings, %；
100-base of Φ is starched Φ 100 and is read；
Φ1001- base slurry additional examination sample after room temperature when Φ 100 readings；
Φ1002The readings of Φ 100 after the slurry additional examination sample aging of-base.
Test result, referring to table 1:
Table 1
As can be seen from Table 1, drilling fluid of the invention is good with high temperature resistant thinner high temperature resistant property, and sulfonation 2- is being added
After vinyl naphthalene-acid/maleic acid copolymers, high temperature resistant property can be further improved.
Claims (6)
1. drilling fluid high temperature resistant thinner, which is characterized in that according to parts by weight, including following raw material: sodium chloride 15-20
Part, 10-18 parts of silicon fluoride, 5-15 parts of sodium sulphate, 0-10 parts of magnesium sulfide, 60-150 parts of calcium sulfate, 5-15 parts of aluminium chloride, maleic acid
2-5 parts of acid anhydride, 10-20 parts of potassium phosphate, 5-10 parts of sodium metasilicate, 8-12 parts of silica, 2-3 parts of active carbon.
2. drilling fluid high temperature resistant thinner according to claim 1, which is characterized in that according to parts by weight, including with
Lower raw material: 16 parts of sodium chloride, 12 parts of silicon fluoride, 10 parts of sodium sulphate, 8 parts of magnesium sulfide, 76 parts of calcium sulfate, 10 parts of aluminium chloride, Malaysia
3 parts of acid anhydrides, 16 parts of potassium phosphate, 8 parts of sodium metasilicate, 10 parts of silica, 2 parts of active carbon.
3. drilling fluid high temperature resistant thinner according to claim 1, which is characterized in that according to parts by weight, including with
Lower raw material: 15 parts of sodium chloride, 10 parts of silicon fluoride, 5 parts of sodium sulphate, 150 parts of calcium sulfate, 15 parts of aluminium chloride, 2 parts of maleic anhydride, phosphorus
10 parts of sour potassium, 10 parts of sodium metasilicate, 8 parts of silica, 3 parts of active carbon.
4. drilling fluid high temperature resistant thinner according to claim 1, which is characterized in that according to parts by weight, including with
Lower raw material: 20 parts of sodium chloride, 18 parts of silicon fluoride, 15 parts of sodium sulphate, 10 parts of magnesium sulfide, 60 parts of calcium sulfate, 5 parts of aluminium chloride, Malaysia
5 parts of acid anhydrides, 20 parts of potassium phosphate, 5 parts of sodium metasilicate, 12 parts of silica, 2 parts of active carbon.
5. drilling fluid high temperature resistant thinner according to claim 1, which is characterized in that further include following parts by weight
Sulfonation 2- vinyl naphthalene -2-5 parts of acid/maleic acid copolymers.
6. drilling fluid high temperature resistant thinner according to claim 1, which is characterized in that according to parts by weight, including with
Lower raw material: 18 parts of sodium chloride, 15 parts of silicon fluoride, 10 parts of sodium sulphate, 5 parts of magnesium sulfide, 95 parts of calcium sulfate, 10 parts of aluminium chloride, Malaysia
4 parts of acid anhydrides, 15 parts of potassium phosphate, 7 parts of sodium metasilicate, 9 parts of silica, 2 parts of active carbon, sulfonation 2- vinyl naphthalene-maleic acid copolymerization
3 parts of object.
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| CN201910546640.5A CN110184039A (en) | 2019-06-24 | 2019-06-24 | Drilling fluid high temperature resistant thinner |
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| CN201910546640.5A CN110184039A (en) | 2019-06-24 | 2019-06-24 | Drilling fluid high temperature resistant thinner |
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