CN101870476A - Method for producing temperature-resistant organically modified bentonite - Google Patents
Method for producing temperature-resistant organically modified bentonite Download PDFInfo
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- CN101870476A CN101870476A CN 201010172142 CN201010172142A CN101870476A CN 101870476 A CN101870476 A CN 101870476A CN 201010172142 CN201010172142 CN 201010172142 CN 201010172142 A CN201010172142 A CN 201010172142A CN 101870476 A CN101870476 A CN 101870476A
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Abstract
The invention relates to a method for producing temperature-resistant organically modified bentonite, comprising a step of carrying out organic modification on sodium bentonite by utilizing quaternary ammonium salt. The production method is characterized by also comprising a step of modifying the sodium bentonite by utilizing stearic acid fatty acid or poly fatty acid. Based on a semi-dry method, the invention modifies the sodium bentonite by adding a proper amount of the stearic acid fatty acid or the poly fatty acid during the production process, the finally obtained product has good temperature resistance, after being subject to 16h of hot-roll aging at the temperature of 150 DEG C, the prepared drilling fluid slurry still has more than 80% of the initial viscosity.
Description
Technical field
The present invention relates to a kind of method for producing temperature-resistant organically modified bentonite.
Background technology
Wilkinite (Bentonite) claim swelling rock or otaylite again, is to be the clay rock of main component with the montmorillonite---the montmorillonite clay rock.The wilkinite translated name that China occurs is otaylite, bentonite, amargosite etc., and name accurately should be the montmorillonite clay.
Wilkinite is a kind of important nonmetallic minerals, and world's bentonite resource is abundant, is widely distributed, and different continents all have bentonite ore to distribute.Distributed more widely in the world is calcium-base bentonite, and sodium bentonite is then comparatively rare, and the place of production concentrates on a few countries.
The present bentonitic annual production of the U.S. is more than 400 ten thousand tons, along with the aggravation of oil crisis, and the increase of probing workload, the wilkinite product annual turnover of estimating U.S. from now on is about 6,000,000 tons.Japan is the insufficient country of bentonite resource, but the prosperity of wilkinite processing industry mainly adopts imported raw material soil processing back to export back external.European countries' wilkinite sales volume is bigger, but main bentonite resource is by import.
The existing resources advantage of China's wilkinite has species the advantage again.At present relevant bentonitic main direction of studying is a Purification of Bentonite, the montmorillonite of the low degree of order of synthetic, and artificial modification's magnesium montmorillonite prepares high performance sial film with wilkinite, activation of bentonite and organise etc.
Wilkinite (montmorillonite) is for alumina octahedral sheet and silicon-oxy tetrahedron layer replace arrangement architecture, and this quilt is regarded as octahedral layer and is sandwiched between the two-layer tetrahedrallayer, so this structure is called 2: 1 type laminate structures.Because octahedral layer part A l
3+By Mg
2+Replace and be with negative charge, so often have Na+, K+, Ca+, H+ plasma between montmorillonite layer, these ions can carry out ion-exchange with other positively charged mineral ion, also can react with organic ion or molecule.
At present, no matter be petroleum drilling or geological prospecting drilling well, all adopt wilkinite preparation drilling mud in a large number.Wilkinite can improve mud yield and drilling benefit greatly as the synergistic agent that adds, and helps creeping into various complicated geologicals, and accident takes place in the prevention well.Because the development of China Petroleum increases with the wilkinite demand year by year to drilling fluid, wilkinite has a extensive future aspect petroleum drilling.
Drilling mud plays an important role in drilling well, and bore slurry and be divided into two classes: a class is to be mud, and carrier mainly is a water, and wilkinite is a thickening material; Another kind of is oil-base mud, and carrier is mainly diesel oil and crude oil, because organic bentonite is mainly adopted in oil loving requirement.
" organism is in the absorption contribution rate research at water _ dication organobentonite interface " (Shen Xueyou, Lu Yingying, Zhu Lizhong, " journal of Zhejiang university (version of science) ", the 30th the 1st phase of volume, 69～74) and " organic performance in synthetic organobentonite of microwave and the planar water thereof " (Li Jiwu, Zhu Lizhong, Cai Wei are strong, " China Environmental Science ", 2004,24 (6) 665～669) CETRIMIDE POWDER (CTMAB) is disclosed and cetylpyridinium chloride (CPC) has carried out modification to wilkinite.
" experimental study of TDTMA_ pillared montmorillonite absorption oil of mirbane " (Wu Weimin, Wu Pingxiao, party's will, Zhu Nengwu, the mineral rock, the 28th the 2nd phase of volume, 17～21) find, utilize long chain quaternary organic cation (as palmityl trimethyl ammonium chloride) to after bentonite modified, cationic N end is adsorbed on electronegative clay surface, and alkyl chain is crowded together mutually and forms an organic phase.
" the bentonitic development of drilling fluid " (Wang Qingwei, Cui Yuncheng, Xuan Lifu, " nonmetalliferous ore ", the 23rd the 6th phase of volume, 29～30) point out, organobentonite in the mud mostly adopts distearyl dimethyl ammonium chloride salt and efficient wilkinite reaction to form, and this cationic bentonite has good affinity to oils.
" preparation of organo montmorillonite and sign " (Wang Chunyan, Li Xia, " Harbin Teachers' Univ.'s natural science journal ", the 19th the 1st phase of volume, 63～69) point out that in petroleum drilling industry, mud thickener, latex stablizer contained in organic drilling mud are organobentonite, this class mud is mainly used in deep-well, ultra deep well and offshore drilling, because of it has rheological and Portability preferably,, prevent corrosion so drilling well can be lubricated effectively; Simultaneously, it also be a kind of well carry glutinous, carry and cut auxiliary agent, can be mixed with good oil-base mud and high temperature resistance releasing stuck agent, the generation that improves drilling speed and minimizing accident greatly.
Because organic bentonite generally is used to handle deep-well and ultra deep well, with going deep into of landing surface, temperature increases gradually, thereby the bentonite temperature tolerance has been proposed more strict requirement.
Yet the above-mentioned organic bentonite of mentioning is but because of congenital reason, and generally adopting calcium base or sodium base inorganic bentonite is raw material, causes temperature tolerance poor, and often viscosity acutely descends under hot conditions, the range of decrease even surpass 80%.And the fine lithium bentonite storage capacity is few in the world, and almost do not have commercialization, thereby the preparation of heat-resistance type bentonite seems more and more important in the world.
Summary of the invention
The object of the present invention is to provide a kind of method for producing temperature-resistant organically modified bentonite, simple and easy to do, and also the product temperature tolerance that obtains is good, and viscosity performance is good.
The following technical scheme of the concrete employing of the present invention:
A kind of method for producing temperature-resistant organically modified bentonite comprises and adopts quaternary ammonium salt that sodium bentonite is carried out organic modification, it is characterized in that, comprises that also adopting stearic acid lipid acid or polyhydric aliphatic acid that sodium bentonite is carried out modification handles.
Specifically be to comprise the steps:
1) 10-20 weight part stearic acid lipid acid or polyhydric aliphatic acid are dissolved in organic solvent;
2) in reactor, drop into 150-250 weight part sodium bentonite, add the 25-35 weight parts water, stir, add 40-60 weight part quaternary ammonium salt then, after stirring, be rapidly heated to 80-95 ℃ confined reaction 15-25min;
3) add stearic acid lipid acid or polyhydric aliphatic acid solution, stir;
4) blanking, dry temperature-resistant organically modified wilkinite.
In order to obtain the better mixing effect, wherein water and stearic acid lipid acid or polyhydric aliphatic acid solution are to add in the mode that sprays.
Among the present invention, described quaternary ammonium salt is a distearyl dimethyl ammonium chloride, and described stearic acid lipid acid is a kind of in stearic acid, sodium stearate and the calcium stearate, and described polyhydric aliphatic acid is a kind of in octadecane unsaturated fatty acids dipolymer, the trimer.
Among the present invention, quaternary ammonium salt also can adopt other replacements, for example: 4 bromide, tetraethylammonium bromide, octadecyl trimethyl ammonium chloride, stearyl dimethyl benzyl ammonium chloride, palmityl trimethyl ammonium chloride etc.
Should think like this, should select solvent with stearic acid lipid acid or polyhydric aliphatic acid coupling, if do not consider cost, its concentration is lower than the solute saturation concentration and gets final product, the preferred scheme of the present invention is: described organic solvent is a methyl alcohol, and described stearic acid lipid acid or polyhydric aliphatic acid are 1～2 with the methyl alcohol ratio: 3.
Compared with prior art, advantage of the present invention mainly is that temperature tolerance is good, and experiment shows, product of the present invention roll through 150 ℃, the heat of 16h aging after, still have the viscosity more than 80% when initial.
Embodiment
Embodiment 1
In advance the 10Kg sodium stearate is dissolved in the 20L methyl alcohol.
In reactor, drop into 150Kg sodium bentonite (Wyoming products), add 25-35Kg water in the spray mode, fully stir 30min after, add the 60Kg distearyl dimethyl ammonium chloride, continue stirring 10min.After stirring finishes, be rapidly heated to 90 ℃ confined reaction 20min.Reaction adds above-mentioned pre-configured stearic acid solution in the spray mode after finishing.Blanking changes baking procedure over to.
Be configured to the oil-base mud system, and roll 16h 150 ℃ of following heat.Measure the R6 reading that heat is rolled front and back respectively with the Fann35 viscometer, and measure heat and roll the back emulsion-breaking voltage.
Embodiment 2
In advance the 16Kg sodium stearate is dissolved in the 25L methyl alcohol.
In reactor, drop into 200Kg sodium bentonite (Wyoming products), add 25-35Kg water in the spray mode, fully stir 30min after, add the 40Kg distearyl dimethyl ammonium chloride, continue stirring 10min.After stirring finishes, be rapidly heated to 90 ℃ confined reaction 20min.Reaction adds above-mentioned pre-configured stearic acid solution in the spray mode after finishing.Blanking changes baking procedure over to.
Be configured to the oil-base mud system, and roll 16h 150 ℃ of following heat.Measure the R6 reading that heat is rolled front and back respectively with the Fann35 viscometer, and measure heat and roll the back emulsion-breaking voltage.
Embodiment 3
In advance the 20Kg sodium stearate is dissolved in the 30L methyl alcohol.
In reactor, drop into 250Kg sodium bentonite (Wyoming products), add 25-35Kg water in the spray mode, fully stir 30min after, add the 50Kg distearyl dimethyl ammonium chloride, continue stirring 10min.After stirring finishes, be rapidly heated to 90 ℃ confined reaction 20min.Reaction adds above-mentioned pre-configured stearic acid solution in the spray mode after finishing.Blanking changes baking procedure over to.
Be configured to the oil-base mud system, and roll 16h 150 ℃ of following heat.Measure the R6 reading that heat is rolled front and back respectively with the Fann35 viscometer, and measure heat and roll the back emulsion-breaking voltage.
The different stearic acid dosage of table 1. are to the influence of product performance
Embodiment 4
In advance the 10Kg trimer acid is dissolved in the 30L methyl alcohol.
In reactor, drop into 210Kg sodium bentonite (Wyoming products), add 30Kg water in the spray mode, fully stir 30min after, add the 50Kg distearyl dimethyl ammonium chloride, continue stirring 10min.After stirring finishes, be rapidly heated to 90 ℃ confined reaction 20min.Reaction adds above-mentioned pre-configured stearic acid solution in the spray mode after finishing.Blanking changes baking procedure over to.
Be configured to the oil-base mud system, and roll 16h 150 ℃ of following heat.Measure the R6 reading that heat is rolled front and back respectively with the Fann35 viscometer, and measure heat and roll the back emulsion-breaking voltage.
Embodiment 5
In advance the 16Kg sodium stearate is dissolved in the 30L methyl alcohol.
In reactor, drop into 230Kg sodium bentonite (Wyoming products), add 30Kg water in the spray mode, fully stir 30min after, add the 50Kg distearyl dimethyl ammonium chloride, continue stirring 10min.After stirring finishes, be rapidly heated to 90 ℃ confined reaction 20min.Reaction adds above-mentioned pre-configured stearic acid solution in the spray mode after finishing.Blanking changes baking procedure over to.
Be configured to the oil-base mud system, and roll 16h 150 ℃ of following heat.Measure the R6 reading that heat is rolled front and back respectively with the Fann35 viscometer, and measure heat and roll the back emulsion-breaking voltage.
Embodiment 6
In advance the 20Kg sodium stearate is dissolved in the 30L methyl alcohol.
In reactor, drop into 220Kg sodium bentonite (Wyoming products), add 30Kg water in the spray mode, fully stir 30min after, add the 50Kg distearyl dimethyl ammonium chloride, continue stirring 10min.After stirring finishes, be rapidly heated to 90 ℃ confined reaction 20min.Reaction adds above-mentioned pre-configured stearic acid solution in the spray mode after finishing.Blanking changes baking procedure over to.
Be configured to the oil-base mud system, and roll 16h 150 ℃ of following heat.Measure the R6 reading that heat is rolled front and back respectively with the Fann35 viscometer, and measure heat and roll the back emulsion-breaking voltage.
The different trimer acid consumptions of table 2. are to the influence of product performance
Claims (5)
1. a method for producing temperature-resistant organically modified bentonite comprises and adopts quaternary ammonium salt that sodium bentonite is carried out organic modification, it is characterized in that, comprises that also adopting stearic acid lipid acid or polyhydric aliphatic acid that sodium bentonite is carried out modification handles.
2. method for producing temperature-resistant organically modified bentonite according to claim 1 is characterized in that, comprises the steps:
1) 10-20 weight part stearic acid lipid acid or polyhydric aliphatic acid are dissolved in organic solvent;
2) in reactor, drop into 150-250 weight part sodium bentonite, add the 25-35 weight parts water, stir, add 40-60 weight part quaternary ammonium salt then, after stirring, be warming up to 80-95 ℃, confined reaction 15-25min;
3) add stearic acid lipid acid or polyhydric aliphatic acid solution, stir;
4) blanking, dry temperature-resistant organically modified wilkinite.
3. method for producing temperature-resistant organically modified bentonite according to claim 2 is characterized in that, water and stearic acid lipid acid or polyhydric aliphatic acid solution are to add in the mode that sprays.
4. method for producing temperature-resistant organically modified bentonite according to claim 1 and 2, it is characterized in that, described quaternary ammonium salt is a distearyl dimethyl ammonium chloride, described stearic acid lipid acid is a kind of in stearic acid, sodium stearate and the calcium stearate, and described polyhydric aliphatic acid is a kind of in octadecane unsaturated fatty acids dipolymer, the trimer.
5. method for producing temperature-resistant organically modified bentonite according to claim 4 is characterized in that described organic solvent is a methyl alcohol, and described stearic acid lipid acid or polyhydric aliphatic acid are 1～2 with the methyl alcohol ratio: 3.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303872A (en) * | 2011-08-17 | 2012-01-04 | 中国石油化工集团公司 | Preparation method of high-property organic bentonite |
| CN103285930A (en) * | 2012-02-22 | 2013-09-11 | 中国石油化工股份有限公司 | Pyrite-containing heavy oil hydrogenation catalyst, and preparation and application thereof |
| CN103896295A (en) * | 2012-12-27 | 2014-07-02 | 中国石油化工股份有限公司 | Alkylphenol polyoxyethylene carboxylate (sulfonate) betaine modified organic soil and preparation method thereof |
| CN106049170A (en) * | 2016-08-09 | 2016-10-26 | 戴云鹏 | Production technology of high-performance bentonite papermaking filler |
| CN106883831A (en) * | 2017-04-12 | 2017-06-23 | 中国地质大学（北京） | A kind of new oil base drilling fluid organic sepiolite and preparation method thereof |
| CN110844915A (en) * | 2019-11-22 | 2020-02-28 | 浙江康百欣新材料有限公司 | Modified organic bentonite and preparation method and application thereof |
| CN114702856A (en) * | 2022-04-20 | 2022-07-05 | 广州思而特科技有限公司 | Dot ink for glass light guide plate and manufacturing method of glass light guide plate |
| CN115536035A (en) * | 2021-06-29 | 2022-12-30 | 中石化南京化工研究院有限公司 | Preparation method of temperature-resistant organic bentonite, temperature-resistant organic bentonite and application thereof |
| CN116352011A (en) * | 2023-04-04 | 2023-06-30 | 三门峡阳光铸材有限公司 | V-method cast steel composite coating and preparation method thereof |
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Cited By (15)
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| CN102303872A (en) * | 2011-08-17 | 2012-01-04 | 中国石油化工集团公司 | Preparation method of high-property organic bentonite |
| CN103285930A (en) * | 2012-02-22 | 2013-09-11 | 中国石油化工股份有限公司 | Pyrite-containing heavy oil hydrogenation catalyst, and preparation and application thereof |
| CN103285930B (en) * | 2012-02-22 | 2015-08-26 | 中国石油化工股份有限公司 | A kind of heavy-oil hydrogenation catalyst containing yellow iron and Synthesis and applications thereof |
| CN103896295A (en) * | 2012-12-27 | 2014-07-02 | 中国石油化工股份有限公司 | Alkylphenol polyoxyethylene carboxylate (sulfonate) betaine modified organic soil and preparation method thereof |
| CN103896295B (en) * | 2012-12-27 | 2016-02-10 | 中国石油化工股份有限公司 | Organophilic clay of alkylphenol polyoxyethylene carboxylic acid (sulfonic acid) betaine salt modification and preparation method thereof |
| CN106049170A (en) * | 2016-08-09 | 2016-10-26 | 戴云鹏 | Production technology of high-performance bentonite papermaking filler |
| CN106883831A (en) * | 2017-04-12 | 2017-06-23 | 中国地质大学（北京） | A kind of new oil base drilling fluid organic sepiolite and preparation method thereof |
| CN106883831B (en) * | 2017-04-12 | 2019-08-16 | 中国地质大学（北京） | A kind of novel oil base drilling fluid organic sepiolite and preparation method thereof |
| CN110844915A (en) * | 2019-11-22 | 2020-02-28 | 浙江康百欣新材料有限公司 | Modified organic bentonite and preparation method and application thereof |
| CN110844915B (en) * | 2019-11-22 | 2021-08-03 | 浙江康百欣新材料有限公司 | Modified organic bentonite and preparation method and application thereof |
| CN115536035A (en) * | 2021-06-29 | 2022-12-30 | 中石化南京化工研究院有限公司 | Preparation method of temperature-resistant organic bentonite, temperature-resistant organic bentonite and application thereof |
| CN115536035B (en) * | 2021-06-29 | 2024-05-28 | 中石化南京化工研究院有限公司 | Preparation method of temperature-resistant organic bentonite, temperature-resistant organic bentonite and application thereof |
| CN114702856A (en) * | 2022-04-20 | 2022-07-05 | 广州思而特科技有限公司 | Dot ink for glass light guide plate and manufacturing method of glass light guide plate |
| CN116352011A (en) * | 2023-04-04 | 2023-06-30 | 三门峡阳光铸材有限公司 | V-method cast steel composite coating and preparation method thereof |
| CN116352011B (en) * | 2023-04-04 | 2023-12-22 | 三门峡阳光铸材有限公司 | V-method cast steel composite coating and preparation method thereof |
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Application publication date: 20101027 |