CN104292387A - Preparation method of high temperature resistant salt-resistant filtrate reducer - Google Patents
Preparation method of high temperature resistant salt-resistant filtrate reducer Download PDFInfo
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- CN104292387A CN104292387A CN201410459971.2A CN201410459971A CN104292387A CN 104292387 A CN104292387 A CN 104292387A CN 201410459971 A CN201410459971 A CN 201410459971A CN 104292387 A CN104292387 A CN 104292387A
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- salt
- preparation
- resisting
- temperature
- mixing solutions
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 title abstract 4
- 239000000706 filtrate Substances 0.000 title abstract 4
- 150000003839 salts Chemical class 0.000 title abstract 4
- 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 claims abstract description 23
- 239000003999 initiator Substances 0.000 claims abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 239000007864 aqueous solution Substances 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 28
- 238000002156 mixing Methods 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 6
- 230000003252 repetitive effect Effects 0.000 claims description 6
- 238000005201 scrubbing Methods 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 abstract description 19
- 238000005553 drilling Methods 0.000 abstract description 17
- 239000012530 fluid Substances 0.000 abstract description 12
- 230000032683 aging Effects 0.000 abstract description 3
- NJSSICCENMLTKO-HRCBOCMUSA-N [(1r,2s,4r,5r)-3-hydroxy-4-(4-methylphenyl)sulfonyloxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)O[C@H]1C(O)[C@@H](OS(=O)(=O)C=2C=CC(C)=CC=2)[C@@H]2OC[C@H]1O2 NJSSICCENMLTKO-HRCBOCMUSA-N 0.000 abstract description 2
- 239000011259 mixed solution Substances 0.000 abstract 2
- 238000013019 agitation Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 abstract 1
- 239000011345 viscous material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000012153 distilled water Substances 0.000 description 8
- 239000007795 chemical reaction product Substances 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000005837 radical ions Chemical class 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
A preparation method of a high temperature resistant salt-resistant filtrate reducer in the invention relates to a preparation method of a nonaqueous drilling composition. The preparation method comprises the following steps: pH of an aqueous solution of 2-methyl-2-acrylamide propanesulfonic acid (AMPS) is adjusted to 7; acrylamide (AM) and diallyldimethylammonium chloride (DMDAAC) are successively added into the aqueous solution; nitrogen is blown and uniform agitation is carried out to obtain a mixed solution; an initiator is added into the mixed solution; standing lasts for 3-7 h at 35-55 DEG C; and a viscous substance obtained is washed repeatedly by the use of ethanol and is finally dried to obtain the high temperature resistant salt-resistant filtrate reducer. After the filtrate reducer is added into a saltwater drilling fluid, salt resistance of the saltwater drilling fluid during high-temperature aging is enhanced, and filter loss decreasing amplitude of the system is 56.1%.
Description
Technical field
The present invention relates to a kind of preparation method of drilling composition of non-water.
Background technology
Drilling practice shows, when deep-well, the ultra deep well of brill seven, eight km, normal temperature gradients just can make top temperature in pit shaft reach 200-250 DEG C, or higher.It is generally acknowledged that high temperature mainly contains the effects such as High Temperature Disperse, coalescent, passivation to clay particle, the effects such as crosslinked, degraded are mainly existed to treatment agent.Thus the subject matter of deep-well, ultra deep well water-base drilling fluid is exactly the research and apply of high temperature resistance treatment agent.
The 70-80 age in 20th century, the polymer mud treatment agent that it is representative that China have developed with vinylformic acid, acrylamide multiple copolymer, and facilitate the progress of Drilling Fluid Technology.In recent years, along with increasing of Special Drilling Operation, ultra deep well and Holes of Complicated Wells quantity, Drilling Fluid Technology is had higher requirement.In deep drilling, temperature produces material impact to the stability of water-base drilling fluid rheological, and thus phreatic water base drilling fluid must meet the requirement of high temperature resistance and thermostability.: the connecting key of (1) molecular backbone chain, and the connecting key of main chain and hydrophilic radical should be c-c, c-N, c-s etc.; (2) turn use into alleviate high temperature dehydration as far as possible, the main aquation group in treatment agent molecule should select the radical ion that wetting ability is strong, as sulfonic group, sulphur methyl, carboxyl etc.; (3) relative molecular mass is wanted suitably, if too low, processing efficiency is not high, and Ruo Taigao then has detrimentally affect to the rheological of drilling fluid.
Summary of the invention
The present invention aims to provide a kind of high-temperature resisting and salt-resisting fluid loss agent that can improve salt-water drilling fluid saline-alkaline tolerance when high temperature ageing.
The preparation method of high-temperature resisting and salt-resisting fluid loss agent of the present invention, comprise: 2-methyl-2-acryamidopropanesulfonic acid (AMPS) aqueous solution is regulated PH to 7, then acrylamide (AM) and diallyldimethylammonium chloride (DMDAAC) is added wherein successively, logical nitrogen also obtains mixing solutions with stirring, initiator is added in mixing solutions, 3-7 hour is left standstill at 35-55 DEG C of temperature, by gained dope ethanol repetitive scrubbing, after drying and get final product.
Preferably, the quality of initiator is the 0.1-1% of mixing solutions quality.
More preferably, the quality of initiator is 0.2% of mixing solutions quality.
Or preferably, the mol ratio of AMPS, AM and DMDAAC is 6.5:2.5:1.0, their total mass percentage compositions in mixing solutions are 20-40%.
More preferably, AMPS, AM and DMDAAC total mass percentage composition in mixing solutions is 30%.
Or leave standstill 5 hours at 45 DEG C of temperature after preferably, adding initiator.
After fluid loss agent of the present invention joins salt-water drilling fluid, salt-water drilling fluid saline-alkaline tolerance when high temperature ageing is strengthened, and the filter loss range of decrease of system is 56.1%.
Embodiment
Embodiment one
Take AM respectively by the mol ratio of 6.5:2.5:1.0, AMPS, DMDAAC, then take initiator and be dissolved in distilled water for subsequent use.
Be dissolved in by AMPS in distilled water, regulate AMPS pH value of water solution to 7 with sodium hydroxide, then add AM and DMDAAC successively, the total mass percentage composition of AMPS, AM and DMDAAC is 30%.Reactant also to mix with agitator and obtains mixing solutions by logical nitrogen, and in mixing solutions, add initiator, the quality of initiator is 0.1% of mixing solutions quality.Leave standstill 5 hours at 36 DEG C of temperature, by gained dope ethanol repetitive scrubbing, after drying, namely obtain reaction product high-temperature resisting and salt-resisting fluid loss agent one.
Embodiment two
Take AM respectively by the mol ratio of 6.5:2.5:1.0, AMPS, DMDAAC, then take initiator and be dissolved in distilled water for subsequent use.
Be dissolved in by AMPS in distilled water, regulate AMPS pH value of water solution to 7 with sodium hydroxide, then add AM and DMDAAC successively, the total mass percentage composition of AMPS, AM and DMDAAC is 30%.Reactant also to mix with agitator and obtains mixing solutions by logical nitrogen, and in mixing solutions, add initiator, the quality of initiator is 0.8% of mixing solutions quality.Leave standstill 6 hours at 55 DEG C of temperature, by gained dope ethanol repetitive scrubbing, after drying, namely obtain reaction product high-temperature resisting and salt-resisting fluid loss agent two.
Embodiment three
Take AM respectively by the mol ratio of 6.5:2.5:1.0, AMPS, DMDAAC, then take initiator and be dissolved in distilled water for subsequent use.
Be dissolved in by AMPS in distilled water, regulate AMPS pH value of water solution to 7 with sodium hydroxide, then add AM and DMDAAC successively, the total mass percentage composition of AMPS, AM and DMDAAC is 30%.Reactant also to mix with agitator and obtains mixing solutions by logical nitrogen, and in mixing solutions, add initiator, the quality of initiator is 0.2% of mixing solutions quality.Leave standstill 5 hours at 4 DEG C of temperature, by gained dope ethanol repetitive scrubbing, after drying, namely obtain reaction product high-temperature resisting and salt-resisting fluid loss agent three.
Embodiment four
Take AM respectively by the mol ratio of 6.5:2.5:1.0, AMPS, DMDAAC, then take initiator and be dissolved in distilled water for subsequent use.
Be dissolved in by AMPS in distilled water, regulate AMPS pH value of water solution to 7 with sodium hydroxide, then add AM and DMDAAC successively, the total mass percentage composition of AMPS, AM and DMDAAC is 30%.Reactant also to mix with agitator and obtains mixing solutions by logical nitrogen, and in mixing solutions, add initiator, the quality of initiator is 1% of mixing solutions quality.Leave standstill 3 hours at 50 DEG C of temperature, by gained dope ethanol repetitive scrubbing, after drying, namely obtain reaction product high-temperature resisting and salt-resisting fluid loss agent four.
Embodiment five
To the high-temperature resisting and salt-resisting fluid loss agent that the embodiment one-embodiment four adding its quality 0.3% in 4% brine mud of 350 mL is respectively obtained, investigate the impact of its mixture on property of drilling fluid, the results are shown in following table.
As seen from the above table, high-temperature resisting and salt-resisting fluid loss agent of the present invention is a kind of high efficiency fluid loss agent.
Claims (6)
1. the preparation method of high-temperature resisting and salt-resisting fluid loss agent, it is characterized in that comprising: the AMPS aqueous solution is regulated PH to 7, then AM and the DMDAAC aqueous solution is added successively wherein, logical nitrogen also obtains mixing solutions with stirring, initiator is added in mixing solutions, 3-7 hour is left standstill, by gained dope ethanol repetitive scrubbing, after drying and get final product at 35-55 DEG C of temperature.
2. the preparation method of high-temperature resisting and salt-resisting fluid loss agent as claimed in claim 1, is characterized in that the quality of initiator is the 0.1-1% of mixing solutions quality.
3. the preparation method of high-temperature resisting and salt-resisting fluid loss agent as claimed in claim 2, is characterized in that the quality of initiator is 0.2% of mixing solutions quality.
4. the preparation method of high-temperature resisting and salt-resisting fluid loss agent as claimed in claim 2, is characterized in that the mol ratio of AMPS, AM and DMDAAC is 6.5:2.5:1.0, and their total mass percentage compositions in mixing solutions are 20-40%.
5. the preparation method of high-temperature resisting and salt-resisting fluid loss agent as claimed in claim 4, is characterized in that AMPS, AM and DMDAAC total mass percentage composition in mixing solutions is 30%.
6. the preparation method of high-temperature resisting and salt-resisting fluid loss agent as claimed in claim 1 or 2, leaves standstill 5 hours at 45 DEG C of temperature after it is characterized in that adding initiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459971.2A CN104292387A (en) | 2014-09-11 | 2014-09-11 | Preparation method of high temperature resistant salt-resistant filtrate reducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459971.2A CN104292387A (en) | 2014-09-11 | 2014-09-11 | Preparation method of high temperature resistant salt-resistant filtrate reducer |
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| Publication Number | Publication Date |
|---|---|
| CN104292387A true CN104292387A (en) | 2015-01-21 |
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| CN201410459971.2A Pending CN104292387A (en) | 2014-09-11 | 2014-09-11 | Preparation method of high temperature resistant salt-resistant filtrate reducer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961860A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Synthesis technology of treating agent for copolymer drilling fluid |
| CN104962250A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Treating agent used for high-performance copolymer drilling fluid |
| CN106366243A (en) * | 2016-10-13 | 2017-02-01 | 西南石油大学 | Method for synthesizing betaine copolymer filtrate loss reducer for drilling fluid |
| CN108587580A (en) * | 2018-04-14 | 2018-09-28 | 石家庄华莱鼎盛科技有限公司 | Drilling fluid high-temperature salt-resistant fluid loss additive modified gum resin and preparation method thereof |
| CN109097009A (en) * | 2018-09-30 | 2018-12-28 | 西南石油大学 | A kind of more effect environmental protection drilling fluids and preparation method thereof |
| WO2019010641A1 (en) * | 2017-07-12 | 2019-01-17 | 西南石油大学 | High temperature cross-linking deep well drilling fluid and preparation method thereof |
| GB2568777A (en) * | 2017-09-25 | 2019-05-29 | China Petroleum & Chem Corp | Random copolymer, preparation method and use thereof, and drilling fluid |
| CN110591670A (en) * | 2019-09-20 | 2019-12-20 | 西南石油大学 | Filtrate reducer for environment-friendly water-based drilling fluid, preparation method thereof, and drilling fluid |
-
2014
- 2014-09-11 CN CN201410459971.2A patent/CN104292387A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961860A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Synthesis technology of treating agent for copolymer drilling fluid |
| CN104962250A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Treating agent used for high-performance copolymer drilling fluid |
| CN106366243A (en) * | 2016-10-13 | 2017-02-01 | 西南石油大学 | Method for synthesizing betaine copolymer filtrate loss reducer for drilling fluid |
| WO2019010641A1 (en) * | 2017-07-12 | 2019-01-17 | 西南石油大学 | High temperature cross-linking deep well drilling fluid and preparation method thereof |
| GB2568777A (en) * | 2017-09-25 | 2019-05-29 | China Petroleum & Chem Corp | Random copolymer, preparation method and use thereof, and drilling fluid |
| GB2568777B (en) * | 2017-09-25 | 2020-01-15 | China Petroleum & Chem Corp | Random copolymer, preparation method and use thereof, and drilling fluid |
| US10774257B2 (en) | 2017-09-25 | 2020-09-15 | China Petroleum & Chemical Corporation | Random copolymer and preparation method thereof, and drilling fluid |
| CN108587580A (en) * | 2018-04-14 | 2018-09-28 | 石家庄华莱鼎盛科技有限公司 | Drilling fluid high-temperature salt-resistant fluid loss additive modified gum resin and preparation method thereof |
| CN109097009A (en) * | 2018-09-30 | 2018-12-28 | 西南石油大学 | A kind of more effect environmental protection drilling fluids and preparation method thereof |
| CN110591670A (en) * | 2019-09-20 | 2019-12-20 | 西南石油大学 | Filtrate reducer for environment-friendly water-based drilling fluid, preparation method thereof, and drilling fluid |
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Application publication date: 20150121 |