CN105349119B - Preparation method of silicofluoride diluent for drilling fluid - Google Patents
Preparation method of silicofluoride diluent for drilling fluid Download PDFInfo
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- CN105349119B CN105349119B CN201510871471.4A CN201510871471A CN105349119B CN 105349119 B CN105349119 B CN 105349119B CN 201510871471 A CN201510871471 A CN 201510871471A CN 105349119 B CN105349119 B CN 105349119B
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- emulsion
- drilling fluid
- ammonium persulfate
- diluent
- preparation
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- 238000005553 drilling Methods 0.000 title claims abstract description 36
- 239000012530 fluid Substances 0.000 title claims abstract description 26
- 239000003085 diluting agent Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000839 emulsion Substances 0.000 claims abstract description 21
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012153 distilled water Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 239000000178 monomer Substances 0.000 claims abstract description 6
- YJKHMSPWWGBKTN-UHFFFAOYSA-N 2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)F YJKHMSPWWGBKTN-UHFFFAOYSA-N 0.000 claims abstract description 4
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims abstract description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 4
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 4
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims abstract description 4
- -1 Hexafluorobutyl Chemical group 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000008236 heating water Substances 0.000 claims description 3
- 229910001868 water Inorganic materials 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- LCPUCXXYIYXLJY-UHFFFAOYSA-N 1,1,2,4,4,4-hexafluorobutyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(F)(F)C(F)CC(F)(F)F LCPUCXXYIYXLJY-UHFFFAOYSA-N 0.000 abstract 1
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 230000036571 hydration Effects 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- VDRSDNINOSAWIV-UHFFFAOYSA-N [F].[Si] Chemical compound [F].[Si] VDRSDNINOSAWIV-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 235000018553 tannin Nutrition 0.000 description 2
- 229920001864 tannin Polymers 0.000 description 2
- 239000001648 tannin Substances 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000006459 hydrosilylation reaction Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
The invention discloses a preparation method of a silicofluoride diluent for drilling fluid, which comprises the following steps: 1) sequentially adding 50ml of methyl methacrylate and 100ml of butyl acrylate into 500ml of distilled water, uniformly stirring, adding 7.5ml of span 80, and stirring for 1 hour to form a monomer pre-emulsion; 2) taking out the pre-emulsion, sequentially adding 35ml of hexafluorobutyl methacrylate, 25ml of dodecafluoroheptyl methacrylate, 25ml of gamma-methacryloxypropyl trimethoxysilane and 40ml of vinyl trimethoxysilane, and dispersing for 10min by ultrasonic oscillation; 3) adding 1/5 ultrasonically vibrated emulsion into 3g of ammonium persulfate, adding the mixture into a flask for heating in a water bath, and adding 3g of ammonium persulfate and distilled water after the reaction temperature is reached; 4) after blue light of the emulsion is emitted, dropwise adding the rest 4/5 emulsion within 15 minutes, then adding 3g of ammonium persulfate, preserving the heat for 1 hour, and finally taking out; the diluent prepared by the preparation method can reduce the interaction between the clays, so that the viscosity of the drilling fluid is reduced.
Description
Technical field
The present invention relates to oil and gas well drilling technical field, specifically relates to a kind of drilling fluid fluosilicic diluent
Preparation method.
Background technology
With going deep into for oil-gas exploration and development, oil-gas exploration gradually increases to deep formation and marine development, well depth,
Drilling strata condition is increasingly sophisticated, and drilling engineering proposes higher requirement to Drilling Fluid Technology, is used particularly with deep-well
Contradiction between the drilling fluid of high solid loading, the comprehensive rheological characteristic for solving drilling fluid, inhibition, temperature resistance etc. is particularly difficult,
The key that the thermal stability problems of particularly Drilling Fluid Technique for Deep are always studied both at home and abroad.And thinner be can not in drilling process
One of additive for drilling fluid lacked, it can play the effects such as viscosity reduction, regulation drilling fluid rheology, can safeguard the performance of drilling fluid
It is stable, it is indispensable additive for drilling fluid in drilling process.
Publication No. CN101368090, publication date are that the Chinese patent literature of on 2 18th, 2009 discloses a kind of brill
Well liquid silicon-fluorine high temperature resistant thinner dry powder, it is a kind of New well drilling solution additive, it is to use hydrosilation method by pi-allyl
APEO, fluorochemical monomer and coupling agent and silicon oil of low hydrogen content reach silicon-fluorine polymer thing after carrying out graft copolymerization, then add again
Enter deionized water, humic acid, sodium cellulosate, caustic soda, reacted a few hours at 120 DEG C~130 DEG C, products therefrom is through pneumatic conveying drying
It is afterwards silicon-fluorine high temperature resistant thinner dry powder for drilling fluids product, its outward appearance is black flow solids powder, has excellent drop
Viscous characteristic, the anti-collapse function of retaining wall, there are the effects such as scattered, lubrication, defoaming to drilling fluid system, and drilling well in drilling process can be eliminated
Shale hydration caused by liquid invaded formation expands, and improves borehole wall stability, phase length is safeguarded after Deal With Drilling Fluid.
Meanwhile currently used diluent is lignin, either tannin extract class thinner, CN101368090 patent documents
Disclosed thinner dry powder or lignin, tannin extract class thinner, its temperature resistance is ineffective, and dilution effect is unstable, when
Temperature reaches 130 DEG C, and process cycle only maintains 3 days or so, and treating capacity is big, meanwhile, the addition of traditional thinner can be right
Oil-gas Layer brings destruction.
The content of the invention
It is contemplated that the defects of present in above-mentioned prior art and deficiency, there is provided a kind of drilling fluid is diluted with fluosilicic
The preparation method of agent, this preparation method technique is simple, the diluent prepared using this preparation method, can reduce the phase between clay
Interaction, makes the viscosity of drilling fluid reduce, and good diluting effect is produced to drilling fluid, can simultaneously be effectively prevents mud shale
Hydration swelling.
The present invention is realized by using following technical proposals：
The preparation method of a kind of drilling fluid fluosilicic diluent, it is characterised in that step is as follows：
1) 50ml methyl methacrylates, 100ml butyl acrylates, are sequentially added in 500ml distilled water, stirring is equal
It is even, 7.5ml span 80s are added, stir 1h, form monomer pre-emulsion；The monomer conversion highest made by this ratio.
2) pre-emulsion, is taken out, sequentially adds Hexafluorobutyl mathacrylate 35ml, dodecafluoroheptyl methacrylate
25ml, γ-methacryloxypropyl trimethoxy silane 25ml, vinyltrimethoxy silane 40ml, ultrasonic vibration point
10min is dissipated, ratio-dependent, which comes from various reagents, can participate in the radical amount of reaction；
3), take 4/5 emulsion through ultrasonic vibration to add ammonium persulfate 3g, add flask heating water bath, reach reaction temperature
After add ammonium persulfate 3g and distilled water, add at twice, the various composition contributed in emulsion is fully reacted；
4), after emulsion has blue light to glow, remaining 1/5 emulsion was added dropwise in 15 minutes, then adds ammonium persulfate 3g
And 1h is incubated, finally take out, the yield highest as obtained by final after the mixing of this substep；
5) room temperature, is cooled to, discharging, which is filtered, produces final products.
Compared with prior art, what the present invention was reached has the beneficial effect that：
In the present invention, using step 1）-5）The diluent that is prepared of mode, it has the following technical effect that：
1st, the diluent has environmental protection characteristic, and it is silicone molecules to its catabolite, and can be further broken into
CO2、H2O、SiO2Hydrate, it is environmentally safe.
2nd, the diluent has substantially no effect on the filter loss of drilling fluid after adding drilling fluid, while can be very good to adjust drilling well
The rheological characteristic of liquid.
3rd, the addition of the diluent can effectively prevent clay hydration swelling.
4th, the diluent can play a part of protection to oil-gas Layer.
Embodiment
As the preferred forms of the present invention, the preparation method it discloses a kind of drilling fluid with fluosilicic diluent, its
Step is as follows：
1) 50ml methyl methacrylates, 100ml butyl acrylates, are sequentially added in 500ml distilled water, stirring is equal
It is even, 7.5ml span 80s are added, stir 1h, form monomer pre-emulsion；
2) pre-emulsion, is taken out, sequentially adds Hexafluorobutyl mathacrylate 35ml, dodecafluoroheptyl methacrylate
25ml, γ-methacryloxypropyl trimethoxy silane 25ml, vinyltrimethoxy silane 40ml, ultrasonic vibration point
Dissipate 10min；
3), take 1/5 emulsion through ultrasonic vibration to add ammonium persulfate 3g, add flask heating water bath, reach reaction temperature
After add ammonium persulfate 3g and distilled water；
4), after emulsion has blue light to glow, remaining 4/5 emulsion was added dropwise in 15 minutes, then adds ammonium persulfate 3g
And 1h is incubated, finally take out；
5) room temperature, is cooled to, discharging, which is filtered, produces final products.
Using step 1）-5）The diluent that is prepared of mode, it has the following technical effect that：
1st, the diluent has environmental protection characteristic, and it is silicone molecules to its catabolite, and can be further broken into
CO2、H2O、SiO2Hydrate, it is environmentally safe.
2nd, the diluent has substantially no effect on the filter loss of drilling fluid after adding drilling fluid, while can be very good to adjust drilling well
The rheological characteristic of liquid.
3rd, the addition of the diluent can effectively prevent clay hydration swelling.
4th, the diluent can play a part of protection to oil-gas Layer.
Claims (1)
1. a kind of drilling fluid preparation method of fluosilicic diluent, it is characterised in that step is as follows：
1) 50ml methyl methacrylates, 100ml butyl acrylates, are sequentially added in 500ml distilled water, stirs, adds
Enter 7.5ml span 80s, stir 1h, form monomer pre-emulsion；
2), take out pre-emulsion, sequentially add Hexafluorobutyl mathacrylate 35ml, dodecafluoroheptyl methacrylate 25ml, γ-
Methacryloxypropyl trimethoxy silane 25ml, vinyltrimethoxy silane 40ml, ultrasonic vibration disperse 10min；
3), take 1/5 emulsion through ultrasonic vibration to add ammonium persulfate 3g, add flask heating water bath, reach after reaction temperature again
Add ammonium persulfate 3g and distilled water；
4), after emulsion has blue light to glow, remaining 4/5 emulsion was added dropwise in 15 minutes, then adds ammonium persulfate 3g and protects
Warm 1h, finally takes out；
5) room temperature, is cooled to, discharging, which is filtered, produces final products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871471.4A CN105349119B (en) | 2015-12-02 | 2015-12-02 | Preparation method of silicofluoride diluent for drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871471.4A CN105349119B (en) | 2015-12-02 | 2015-12-02 | Preparation method of silicofluoride diluent for drilling fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105349119A CN105349119A (en) | 2016-02-24 |
| CN105349119B true CN105349119B (en) | 2017-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510871471.4A Active CN105349119B (en) | 2015-12-02 | 2015-12-02 | Preparation method of silicofluoride diluent for drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105349119B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198312A (en) * | 2016-07-07 | 2016-12-07 | 中国石油集团川庆钻探工程有限公司 | Evaluation method of water-based drilling fluid flow pattern regulator |
| CN106634886B (en) * | 2016-12-23 | 2017-10-17 | 石家庄华莱鼎盛科技有限公司 | Viscosity depressant for drilling fluid fluosilicic polymer and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5021501A (en) * | 1986-05-28 | 1991-06-04 | Daikin Industries, Ltd. | Fluorine-containing water-repellent oil-repellent composition |
| CN1350047A (en) * | 2000-10-25 | 2002-05-22 | 宋福如 | High-temperature viscosity reducer for drilling fluid and its production process |
| CN101368090A (en) * | 2008-09-19 | 2009-02-18 | 宋福如 | Process for preparing silicon-fluorine high temperature resistant thinner dry powder for drilling fluids |
| CN103626914A (en) * | 2013-11-29 | 2014-03-12 | 中国石油天然气股份有限公司 | Pour point and viscosity reducing agent and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0909621D0 (en) * | 2009-06-05 | 2009-07-15 | 3M Innovative Properties Co | Fluorinated polymeric microparticles and uses thereof as fluid reducing additives |
-
2015
- 2015-12-02 CN CN201510871471.4A patent/CN105349119B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5021501A (en) * | 1986-05-28 | 1991-06-04 | Daikin Industries, Ltd. | Fluorine-containing water-repellent oil-repellent composition |
| CN1350047A (en) * | 2000-10-25 | 2002-05-22 | 宋福如 | High-temperature viscosity reducer for drilling fluid and its production process |
| CN101368090A (en) * | 2008-09-19 | 2009-02-18 | 宋福如 | Process for preparing silicon-fluorine high temperature resistant thinner dry powder for drilling fluids |
| CN103626914A (en) * | 2013-11-29 | 2014-03-12 | 中国石油天然气股份有限公司 | Pour point and viscosity reducing agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 抗高温降粘剂硅氟共聚物（SF）的研究与应用;秦永宏 等;《钻井液与完井液》;20011231;第18卷(第1期);第12-15页 * |
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| CN105349119A (en) | 2016-02-24 |
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Effective date of registration: 20200922 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: Chenghua District Green Road 610051 Chengdu City, Sichuan province 1 No. 3 Chuanqing drilling Department of Science & Technology Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |