CN102766446A - High-temperature-resistant high-density formate polysulfonate drilling fluid and preparation method thereof - Google Patents
High-temperature-resistant high-density formate polysulfonate drilling fluid and preparation method thereof Download PDFInfo
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- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000005553 drilling Methods 0.000 title abstract description 41
- 239000012530 fluid Substances 0.000 title abstract description 32
- 229920000642 polymer Polymers 0.000 claims abstract description 65
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 23
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000440 bentonite Substances 0.000 claims abstract description 9
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 9
- 238000006277 sulfonation reaction Methods 0.000 claims description 14
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- 235000015320 potassium carbonate Nutrition 0.000 claims description 6
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 claims description 6
- -1 sorbitan fatty acid ester Chemical class 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 5
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical class C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 5
- 238000009775 high-speed stirring Methods 0.000 claims description 5
- 239000003077 lignite Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 abstract description 11
- 239000003208 petroleum Substances 0.000 abstract description 4
- 229910052791 calcium Inorganic materials 0.000 abstract description 3
- 239000011575 calcium Substances 0.000 abstract description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000002981 blocking agent Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 13
- 238000011156 evaluation Methods 0.000 description 8
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 239000010440 gypsum Substances 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000012256 powdered iron Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
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Abstract
The invention relates to high-temperature-resistant high-density formate polysulfonate drilling fluid and a preparation method thereof. The high-temperature-resistant high-density formate polysulfonate drilling fluid comprises, by weight, 100 parts of water, 2-5 parts of bentonite, 0.1-10 parts of high-temperature-resistant sulphate polymer, 20-100 parts of formate, 0.6-2.0 parts of potassium hydroxide, 8-20 parts of sulfonating agent, 2-6 parts of blocking agent, 0.5-3.0 parts of emulsifier, 0.2-3.0 parts of pH regulator, and 120-270 parts of barite powder. The invention further provides the preparation method of the high-temperature-resistant high-density formate polysulfonate drilling fluid. The high-temperature-resistant high-density formate polysulfonate drilling fluid is applicable to petroleum drilling of deep wells and extra-deep wells, especially wells in high-thickness salt bed, is capable of resisting the temperature up to 180 DEG C under the density of 1.8-2.5g/cm<3>, tolerating salt to saturation and resisting calcium at 800-1000ppm, and is drilling fluid which is fine in performance and resistant to high temperature, high pressure and hypersalinity.
Description
Technical field
The present invention relates to a kind of oil production and use drilling fluid, relate in particular to a kind of high temperature high density formate sulphonated polymer mud and preparation method thereof, belong to the petroleum exploration and development technical field.
Background technology
Petroleum drilling technology at " three height " harsh subsurface environments such as the complicated well high temperature of ultra deep well, high pressure, high salinities is a world-class difficult problem of generally acknowledging, drilling liquid technology is one of its core technology.
The high-density saturated brine sulfonation system that present drilling liquid technology generally adopts, because it is high to adopt tiff and powdered iron ore to increase the weight of the back solid load, free water is few; Circulation presses consumption high; And the temperature resistance ability only can reach about 160 ℃, causes drilling fluid rheology control difficulty under the high temperature, handles frequent.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of high-density formate sulphonated polymer mud, through adding formate, obtain a kind of have good rheological and stronger temperature resistance, the drilling fluid of saline-alkaline tolerance.
The present invention also aims to provide the preparation method of above-specified high density formate sulphonated polymer mud.
For achieving the above object, the invention provides a kind of high temperature high density formate sulphonated polymer mud, it comprises following weight part composition:
Water, 100 parts, wilkinite, 2-5 part, high temperature resistance sulfonate polymer, 0.1-10 part; Formate, 20-100 part, Pottasium Hydroxide, 0.6-2.0 part, sulfonation treatment agent, 8-20 part; Plugging agent, 2-6 part; Emulsifying agent, 0.5-3.0 part, pH regulator agent, 0.2-3.0 part, ground barium sulfate, 120-270 part.
High temperature high density formate sulphonated polymer mud provided by the invention is a kind of high-density aqueous based systems.
In high temperature high density formate sulphonated polymer mud provided by the invention, preferably, the sulfonation treatment agent that is adopted comprises sulfonated phenol formaldehyde resin, sulfonated lignite resin and sulfonated humic acid chromium, and three's weight ratio is 3-10: 3-6: 2-4.
In high temperature high density formate sulphonated polymer mud provided by the invention, preferably, the plugging agent that is adopted is a sulfonated gilsonite, and the softening temperature of this sulfonated gilsonite is 160 ℃-180 ℃.Through adopting sulfonated gilsonite, can obtain good shutoff and fall filtration effect as plugging agent.
In high temperature high density formate sulphonated polymer mud provided by the invention, preferably, the high temperature resistance sulfonate polymer that is adopted is acrylic amide (AM) and 2-acrylamido-2-methylsulphonic acid (AMPS) multipolymer, and its molecular weight is greater than 5,000,000.
In high temperature high density formate sulphonated polymer mud provided by the invention, ground barium sulfate is mainly used in adjusting density, and preferably, the density of the ground barium sulfate that adopts is 4.30g/cm
3More than, purity is more than 98%, size distribution D
90At the 20-40 micron.
In high temperature high density formate sulphonated polymer mud provided by the invention, preferably, the formate that is adopted is industrial potassium formiate, and potassium formiate content is more than 97%.Formate is a kind of water-soluble weighting agent, and the saturation ratio of potassium formiate in water can reach 137%, and drilling fluid provided by the invention utilizes the water-soluble characteristics that increase the weight of of potassium formiate, effectively reduces the solid load in the high density drilling fluid, reaches the purpose of performance optimization.
In high temperature high density formate sulphonated polymer mud provided by the invention, preferably, the emulsifying agent that is adopted is a sorbitan fatty acid ester etc.
In high temperature high density formate sulphonated polymer mud provided by the invention, preferably, the pH regulator agent of being adopted is a salt of wormwood etc.Add after the pH regulator agent, the pH value of solution system is 9-10.
In high temperature high density formate sulphonated polymer mud provided by the invention, preferably, the density of this high temperature high density formate sulphonated polymer mud is 1.7-2.5g/cm
3
Technical scheme provided by the invention utilizes that formate base fluid density is higher, the advantage of Heat stability is good, and the solid load of the high temperature high density formate sulphonated polymer mud of preparation is compared conventional high density drilling fluid and reduced, when drilling fluid density is 2.5g/cm
3The time; The sulphonated polymer mud solid load that the solid load of formate sulphonated polymer mud is compared with density has reduced 15-20%; Free water is able to part release in the drilling fluid; Thereby evaded high density drilling fluid rheological and the dehydration building capacity contradiction between regulating, the rheological of this drilling fluid, temperature resistance, saline-alkaline tolerance have had further lifting simultaneously, can satisfy well depth surpass 6000 meters, bottom temperature greater than 160 ℃, drilling fluid density greater than 1.8g/cm
3, the salt layer thickness surpasses the drilling well demand of reservoir under 1000 meters the huge thick compound salt deposit of ultra deep well and the salt.
The present invention also provides the preparation method of above-mentioned high temperature high density formate sulphonated polymer mud, may further comprise the steps:
Water is mixed with wilkinite, stir prehydration and obtain the prehydration bentonite slurry more than 24 hours;
Be under 8000-12000 rev/min the high-speed stirring state at rotating speed; Add Pottasium Hydroxide, high temperature resistance sulfonate polymer, sulfonation treatment agent, plugging agent, emulsifying agent, pH regulator agent, formate successively; Add ground barium sulfate at last, obtain said high temperature high density formate sulphonated polymer mud.
Drilling fluid provided by the invention is a kind of high density drilling fluid that can in the complicated well drilling well of ultra deep well, use; Compare with common high-density saturated salt sulfonation water-base drilling fluid, have lower solid load, higher thermostability; Can keep more suitably rheological; Can adapt to the drilling well of reservoir under deep-well, ultra deep well, huge thick compound salt deposit and the salt, it is lower to overcome conventional water base saturated brine high-density sulfonated drilling fluid Auto-regulating System of Density of Heavy Medium ability, and heat and salinity tolerance is limited in one's ability; Maintenance intervals is frequent, a particularly thorny difficult problem between inhibition, rheological and the dehydration building capacity.High temperature high density formate sulphonated polymer mud provided by the invention is applicable to the especially huge thick compound salt deposit petroleum drilling of deep-well ultra deep well, at 1.8-2.5g/cm
3Density conditions under, the temperature resistance ability can reach 180 ℃, anti-salt to saturated, the anticalcium ability reaches 800-1000ppm, is the drilling fluid of a kind of well behaved high temperature resistance, anti-high pressure, anti-high salinity.
Embodiment
To understand in order technical characterictic of the present invention, purpose and beneficial effect being had more clearly, technical scheme of the present invention is carried out following detailed description, but but can not be interpreted as qualification at present practical range of the present invention.
Embodiment 1
It is 2.4g/cm that present embodiment provides a kind of density
3High temperature high density formate sulphonated polymer mud, it prepares through following steps:
In circulation tank, put into 30m
3Fresh water adds wilkinite 0.6t, fully stirs the static prehydration in back, and the prehydration time must not be less than 24 hours, obtains the prehydration bentonite slurry;
Fully stirring under the state of (rotating speed is 8000-12000 rev/min a high-speed stirring); In the prehydration bentonite slurry, add 0.6t Pottasium Hydroxide, 0.9t high temperature resistance sulfonate polymer acrylic amide and 2-acrylamido-2-methylsulphonic acid multipolymer (molecular weight is greater than 5,000,000), 6t sulfonation treatment agent (3t sulfonated phenol formaldehyde resin, 1.5t sulfonated lignite resin and 1.2t sulfonated humic acid chromium mix), 18t high softening-point sulfonated gilsonite (180 ℃ of softening temperatures), 3t emulsifying agent SP-80,2t salt of wormwood in order; Fully stir the back and add the 30t formate, add high-density ground barium sulfate 67.9t at last to density 2.4g/cm
3, stir, obtain this high temperature high density formate sulphonated polymer mud.
Embodiment 2
It is 2.25g/cm that present embodiment provides a kind of density
3High temperature high density formate sulphonated polymer mud, it prepares through following steps:
In circulation tank, put into 30m
3Fresh water adds wilkinite 0.9t, fully stirs the static prehydration in back, and the prehydration time must not be less than 24 hours, obtains the prehydration bentonite slurry;
Fully stirring under the state of (rotating speed is 8000-12000 rev/min a high-speed stirring); In the prehydration bentonite slurry, add 0.4t Pottasium Hydroxide, 0.6t high temperature resistance sulfonate polymer acrylic amide and 2-acrylamido-2-methylsulphonic acid multipolymer (molecular weight is greater than 5,000,000), 4t sulfonation treatment agent (2t sulfonated phenol formaldehyde resin, 1.2t sulfonated lignite resin and 0.8t sulfonated humic acid chromium mix), 14t high softening-point sulfonated gilsonite (180 ℃ of softening temperatures), 2t emulsifying agent SP-80,2t salt of wormwood in order; Fully stir the back and add the 21t formate, add high-density ground barium sulfate 79.3t at last to density 2.25g/cm
3, stir, obtain this high temperature high density formate sulphonated polymer mud.
Embodiment 3
It is 1.80g/cm that present embodiment provides a kind of density
3High temperature high density formate sulphonated polymer mud, it prepares through following steps:
In circulation tank, put into 30m
3Fresh water adds wilkinite 1.2t, fully stirs the static prehydration in back, and the prehydration time must not be less than 24 hours, obtains the prehydration bentonite slurry;
Fully stirring under the state of (rotating speed is 8000-12000 rev/min a high-speed stirring); In the prehydration bentonite slurry, add 0.4t Pottasium Hydroxide, 0.4t high temperature resistance sulfonate polymer acrylic amide and 2-acrylamido-2-methylsulphonic acid multipolymer (molecular weight is greater than 5,000,000), 4t sulfonation treatment agent (2t sulfonated phenol formaldehyde resin, 1.2t sulfonated lignite resin and 0.8t sulfonated humic acid chromium mix), 6t high softening-point sulfonated gilsonite (180 ℃ of softening temperatures), 2t emulsifying agent SP-80,2t salt of wormwood in order; Fully stir the back and add the 21t formate, add high-density ground barium sulfate 54.2t at last to density 1.80g/cm
3, stir, obtain this high temperature high density formate sulphonated polymer mud.
2, the traditional performance of the drilling fluid that configures of test implementation example 2, and with saturated brine sulfonated drilling fluid (the concrete composition of this drilling fluid: water, 100 weight parts, wilkinite, 2-5 weight part with density; High temperature resistance sulfonate polymer, 0.1 weight part, Pottasium Hydroxide, 1.0 weight parts, sulfonation treatment agent, 12 weight parts; Sulfonated gilsonite, 4 weight parts; Emulsifying agent SP-80,0.8 weight part, pH regulator agent (salt of wormwood), 0.7 weight part, Repone K, 7 weight parts; Sodium-chlor, 22 weight parts; Ground barium sulfate, 101 weight parts, raw materials such as high temperature resistance sulfonate polymer and sulfonation treatment agent are with embodiment 1) respectively after 180 ℃ of heat are rolled 16 hours, record the contrast properties experimental data respectively according to water-base drilling fluid test procedure (GB/T 16783-1997) and see table 1.
The traditional performance evaluation of table 1 high temperature high density formate sulphonated polymer mud (180 ℃ * 16h)
Can find out from the contrast properties parameter of table 1; The rheological of the high temperature high density formate sulphonated polymer mud that embodiment 2 provides is reasonable; AV, PV and the shear force of comparing the saturated brine sulfonated drilling fluid all have decline in various degree; For later stage and on-the-spot adjustment have stayed bigger adjusting space, the HTHP dehydration has shown the advantage of high-density drilling workers less than 10ml.
2, the high temperature high density formate sulphonated polymer mud to embodiment 2 preparations carries out the particularly lasting for a long time thermostability evaluation of high high-temp stability; Be about to high temperature ageing time lengthening to 24 hour, 48 hours, 72 hours, 168 hours etc.; Carry out the performance test of rheological and dehydration building capacity again, the evaluation experimental data are seen table 2.
Can find out from the temperature resistance merit rating experimental result of table 2; Growth along with high-temperature time; It is constant basically that the high temperature high density formate sulphonated polymer mud of embodiment 2 preparation sticking cuts, and filter loss slightly increases, and this high temperature high density formate sulphonated polymer mud is described, and not only high-temperature resistance is strong; And possesses continuous high temperature stability; Be suitable for the ultra deep well drilling operation, this adding that has also confirmed concentration formic acid and high salt not only effectively improves rheological, can also increase substantially the high-temperature stability of high temperature high density formate sulphonated polymer mud and treatment agent.
The high-temperature resistance evaluation experimental data of table 2 high temperature high density formate sulphonated polymer mud
3, consider that this high temperature high density formate sulphonated polymer mud is mainly used in the compound salt deposit of ultra deep well and creeps into; High temperature high density formate sulphonated polymer mud to embodiment 2 preparations carries out anticalcium ability, saline-alkaline tolerance; And the comprehensive pollution merit rating of anti-gypsum, salt and landwaste; The experiment of anticalcium merit rating is the calcium sulfate that in drilling fluid to be measured, adds different amounts; The saline-alkaline tolerance evaluation experimental is the sodium-chlor that in drilling fluid to be measured, adds different amounts, and the experiment of comprehensive pollution merit rating is calcium sulfate, sodium-chlor and the landwaste that in drilling fluid to be measured, adds different amounts simultaneously, and heat is rolled aging after 16 hours then; According to water-base drilling fluid inhibition and anti-calcium and anti-salt contamination evaluation method (Q/SY1408-2011), test data is seen table 3, table 4, table 5, table 6 respectively.
The anticalcium merit rating experimental data of table 3 high temperature high density formate sulphonated polymer mud (180 ℃ * 16h)
Can know from the data of table 3; The anticalcium pollution capacity of the high temperature high density formate sulphonated polymer mud that embodiment 2 provides is good; When the gypsum dosage reached 3wt%, the HTHP dehydration still remained on less than 10ml, and hmc is merely 2mm; Very hard closely knit after the mud cake seasoning, the scanning electron microscope analysis average pore distributes less than 20 microns.
The saline-alkaline tolerance evaluation experimental data of table 4 high temperature high density formate sulphonated polymer mud
Can find out that from table 4 the anti-salt pollution ability of this high temperature high density formate sulphonated polymer mud is strong, even reach at 12% o'clock at the salt dosage, the system stable performance, the HTHP dehydration is increased to about 15ml, at the scene in the allowed band.
Contamination resistance evaluation experimental data under table 5 salt and gypsum exist simultaneously (180 ℃ * 16h)
The anti-salt of table 6, gypsum, salt comprehensive pollution merit rating experimental data (180 ℃ * 16h)
Can know that from the experimental result of table 5, table 6 be no more than under 180 ℃ the situation, the contamination resistance of this high temperature high density formate sulphonated polymer mud reaches landwaste and pollutes to 15%, anti-salt to 12%, anticalcium to 3% has good anti-pollution anti-calcium and anti-salt ability.Under the situation of comprehensive pollution and higher temperature, then can deal with through the method for suitable adjustment sulfonation treatment agent gelatin concentration.
Claims (10)
1. high temperature high density formate sulphonated polymer mud, it comprises that following weight part forms:
Water, 100 parts, wilkinite, 2-5 part, high temperature resistance sulfonate polymer, 0.1-10 part; Formate, 20-100 part, Pottasium Hydroxide, 0.6-2.0 part, sulfonation treatment agent, 8-20 part; Plugging agent, 2-6 part; Emulsifying agent, 0.5-3.0 part, pH regulator agent, 0.2-3.0 part, ground barium sulfate, 120-270 part.
2. high temperature high density formate sulphonated polymer mud according to claim 1, wherein, said sulfonation treatment agent comprises sulfonated phenol formaldehyde resin, sulfonated lignite resin and sulfonated humic acid chromium, three's weight ratio is 3-10: 3-6: 2-4.
3. high temperature high density formate sulphonated polymer mud according to claim 1, wherein, said plugging agent is a sulfonated gilsonite, the softening temperature of this sulfonated gilsonite is 160 ℃-180 ℃.
4. high temperature high density formate sulphonated polymer mud according to claim 1, wherein, said high temperature resistance sulfonate polymer is acrylic amide and 2-acrylamido-2-methylsulphonic acid multipolymer, its molecular weight is greater than 5,000,000.
5. high temperature high density formate sulphonated polymer mud according to claim 1, wherein, the density of said ground barium sulfate is 4.30g/cm
3More than, purity is more than 98%, size distribution D
90At the 20-40 micron.
6. high temperature high density formate sulphonated polymer mud according to claim 1, wherein, said formate is industrial potassium formiate, and potassium formiate content is more than 97%.
7. high temperature high density formate sulphonated polymer mud according to claim 1, wherein, said emulsifying agent is a sorbitan fatty acid ester.
8. high temperature high density formate sulphonated polymer mud according to claim 1, wherein, said pH regulator agent is a salt of wormwood.
9. high temperature high density formate sulphonated polymer mud according to claim 1, wherein, the density of this high temperature high density formate sulphonated polymer mud is 1.8-2.5g/cm
3
10. the preparation method of each described high temperature high density formate sulphonated polymer mud of claim 1-9, it may further comprise the steps:
Water and wilkinite are mixed, and prehydration obtains the prehydration bentonite slurry more than 24 hours;
Be under 8000-12000 rev/min the high-speed stirring state at rotating speed; Add Pottasium Hydroxide, high temperature resistance sulfonate polymer, sulfonation treatment agent, plugging agent, emulsifying agent, pH regulator agent, formate successively; Add ground barium sulfate at last, obtain said high temperature high density formate sulphonated polymer mud.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361038A (en) * | 2012-12-11 | 2013-10-23 | 中国石油化工股份有限公司 | High-temperature and high-density fresh water drilling fluid |
| CN103351854B (en) * | 2013-08-06 | 2015-08-12 | 湖北汉科新技术股份有限公司 | A kind of drilling fluid with chemical reverse osmosis function |
| CN104893690A (en) * | 2015-06-25 | 2015-09-09 | 山东得顺源石油科技有限公司 | Low-soil-phase high-density calcium-resistant saturated salt water drilling fluid system |
| CN104927805A (en) * | 2015-06-25 | 2015-09-23 | 山东得顺源石油科技有限公司 | High-density water-based drilling fluid applicable to continental deposit sensitive shale formation |
| CN104962254A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Low-cost formate drilling washing liquid |
| CN105154039A (en) * | 2014-06-16 | 2015-12-16 | 成都棕通石油配件有限公司 | Drilling mud for drilling ultra-deep well |
| CN105199687A (en) * | 2014-06-18 | 2015-12-30 | 成都棕通石油配件有限公司 | Slurry for protecting oil and gas reservoir |
| CN105273695A (en) * | 2014-06-16 | 2016-01-27 | 成都棕通石油配件有限公司 | Preparation method of slurry for ultra-deep well drilling |
| CN105909193A (en) * | 2016-06-20 | 2016-08-31 | 中国石油化工股份有限公司 | On-site treatment process of potassium carbonate nonaethylene glycol monododecyl ether drilling fluid |
| CN107312510A (en) * | 2017-07-12 | 2017-11-03 | 西南石油大学 | High-temperature cross-linking Drilling Fluid Technique for Deep and preparation method thereof |
| WO2019010771A1 (en) * | 2017-07-12 | 2019-01-17 | 西南石油大学 | Deep-well polysulfonate drilling fluid and preparation method therefor |
| CN109652036A (en) * | 2019-01-19 | 2019-04-19 | 西南石油大学 | A kind of high-temperature high-density high salinity water-base drilling fluid |
| CN110951468A (en) * | 2019-10-24 | 2020-04-03 | 上海江南长兴造船有限责任公司 | Ocean high-temperature high-pressure water-based drilling fluid |
| CN112048289A (en) * | 2020-10-20 | 2020-12-08 | 河北省煤田地质局第二地质队 | High-salinity water-based drilling fluid and preparation method thereof |
| CN112552886A (en) * | 2020-12-20 | 2021-03-26 | 西南石油大学 | Superhigh temperature resistant 180 ℃ variable density solid-free tackifying type well completion fluid and workover fluid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851492A (en) * | 2009-08-14 | 2010-10-06 | 新疆德蓝股份有限公司 | High-temperature high-pressure salt-resistant high-density drilling fluid |
| CN102093859A (en) * | 2009-12-14 | 2011-06-15 | 武侯区巅峰机电科技研发中心 | Drilling leak plugging agent applied to exploration and development of petroleum and natural gas |
-
2012
- 2012-07-25 CN CN201210260642.6A patent/CN102766446B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851492A (en) * | 2009-08-14 | 2010-10-06 | 新疆德蓝股份有限公司 | High-temperature high-pressure salt-resistant high-density drilling fluid |
| CN102093859A (en) * | 2009-12-14 | 2011-06-15 | 武侯区巅峰机电科技研发中心 | Drilling leak plugging agent applied to exploration and development of petroleum and natural gas |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361038B (en) * | 2012-12-11 | 2017-10-03 | 中国石油化工股份有限公司 | A kind of high-temperature high-density fresh-water drilling fluid |
| CN103361038A (en) * | 2012-12-11 | 2013-10-23 | 中国石油化工股份有限公司 | High-temperature and high-density fresh water drilling fluid |
| CN103351854B (en) * | 2013-08-06 | 2015-08-12 | 湖北汉科新技术股份有限公司 | A kind of drilling fluid with chemical reverse osmosis function |
| CN105154039A (en) * | 2014-06-16 | 2015-12-16 | 成都棕通石油配件有限公司 | Drilling mud for drilling ultra-deep well |
| CN105273695A (en) * | 2014-06-16 | 2016-01-27 | 成都棕通石油配件有限公司 | Preparation method of slurry for ultra-deep well drilling |
| CN105199687A (en) * | 2014-06-18 | 2015-12-30 | 成都棕通石油配件有限公司 | Slurry for protecting oil and gas reservoir |
| CN104962254A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Low-cost formate drilling washing liquid |
| CN104893690A (en) * | 2015-06-25 | 2015-09-09 | 山东得顺源石油科技有限公司 | Low-soil-phase high-density calcium-resistant saturated salt water drilling fluid system |
| CN104927805A (en) * | 2015-06-25 | 2015-09-23 | 山东得顺源石油科技有限公司 | High-density water-based drilling fluid applicable to continental deposit sensitive shale formation |
| CN105909193B (en) * | 2016-06-20 | 2018-10-09 | 中国石油化工股份有限公司 | A kind of in-situ processing technique of potassium carbonate Aethoxy Sklerol drilling fluid |
| CN105909193A (en) * | 2016-06-20 | 2016-08-31 | 中国石油化工股份有限公司 | On-site treatment process of potassium carbonate nonaethylene glycol monododecyl ether drilling fluid |
| CN107312510A (en) * | 2017-07-12 | 2017-11-03 | 西南石油大学 | High-temperature cross-linking Drilling Fluid Technique for Deep and preparation method thereof |
| CN107312510B (en) * | 2017-07-12 | 2018-07-06 | 西南石油大学 | High-temperature cross-linking Drilling Fluid Technique for Deep and preparation method thereof |
| WO2019010771A1 (en) * | 2017-07-12 | 2019-01-17 | 西南石油大学 | Deep-well polysulfonate drilling fluid and preparation method therefor |
| CN109652036A (en) * | 2019-01-19 | 2019-04-19 | 西南石油大学 | A kind of high-temperature high-density high salinity water-base drilling fluid |
| CN110951468A (en) * | 2019-10-24 | 2020-04-03 | 上海江南长兴造船有限责任公司 | Ocean high-temperature high-pressure water-based drilling fluid |
| CN112048289A (en) * | 2020-10-20 | 2020-12-08 | 河北省煤田地质局第二地质队 | High-salinity water-based drilling fluid and preparation method thereof |
| CN112552886A (en) * | 2020-12-20 | 2021-03-26 | 西南石油大学 | Superhigh temperature resistant 180 ℃ variable density solid-free tackifying type well completion fluid and workover fluid |
| CN112552886B (en) * | 2020-12-20 | 2023-03-10 | 西南石油大学 | Superhigh temperature resistant 180 ℃ variable density solid-free tackifying type well completion fluid and workover fluid |
| CN112552886B9 (en) * | 2020-12-20 | 2023-05-26 | 西南石油大学 | Ultrahigh-temperature-resistant 180 ℃ variable-density solid-free tackifying completion fluid and workover fluid |
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