CN101798504A - Multi-effect thickening agent for fracturing and preparation method thereof - Google Patents
Multi-effect thickening agent for fracturing and preparation method thereof Download PDFInfo
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- CN101798504A CN101798504A CN201010127317A CN201010127317A CN101798504A CN 101798504 A CN101798504 A CN 101798504A CN 201010127317 A CN201010127317 A CN 201010127317A CN 201010127317 A CN201010127317 A CN 201010127317A CN 101798504 A CN101798504 A CN 101798504A
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Abstract
The invention relates to a multi-effect thickening agent for fracturing and a preparation method thereof. The preparation method comprises the following steps of: preparing 100 parts of vegetable gum or vegetable gum hydroxypropyl, ethoxyl and carboxymethyl derivative by using 1 to 30 parts of inorganic base, 1 to 10 parts of R1X, 1 to 50 parts of R2X, 1 to 50 parts of R3X, 1 to 30 parts of inorganic or organic acid and 10 to 100 parts of water; and drying and crushing the product of the chemical reaction to obtain the multi-effect thickening agent for fracturing. When the multi-effect thickening agent for fracturing is used, bactericide, clay stabilizer, surfactant, demulsifier and defoaming agent can be saved.
Description
Technical field
The present invention relates to a kind of utilize vegetable jelly or its hydroxypropyl, hydroxyethyl, carboxymethylated derivative to carry out chemical reaction after, drying, pulverizing, and obtain the method for multi-effect thickening agent for fracturing.
Background technology
Defeat in the technology of splitting at existing oil and gas well, with the relevant chemically modified derivative in vegetable jelly and their as of the fracturing fluid thickening material in occupation of dominant position.This class vegetable jelly mainly contains:
Derivatives such as the hydroxypropylguar gum after guar gum and the chemical modification thereof, hydroxyethyl guar gum, carboxymethyl guar glue, Carboxymethyl hydroxypropyl guar, carboxymethyl hydroxyethyl guar gum.
Derivatives such as the hydroxypropyl fenugreek gum after fenugreek gum and the chemical modification thereof, hydroxyethyl fenugreek gum, carboxymethyl fenugreek gum, carboxy-methyl hydroxy propyl fenugreek gum, carboxymethyl hydroxyethyl fenugreek gum.
Derivatives such as the hydroxypropyl sesbania gum after sesbania gum and the chemical modification thereof, hydroxyethyl sesbania gum, carboxymethyl sesbania gum, carboxy-methyl hydroxy propyl sesbania gum, carboxymethyl hydroxyethyl sesbania gum.
Derivatives such as the hydroxypropylcellulose after Mierocrystalline cellulose and the chemical modification thereof, Natvosol, carboxymethyl cellulose, carboxymethyl hydroxypropyl cellulose, carboxymethyl hydroxyethyl cellulose.
Derivatives such as the hydroxypropyl konjak gum after konjak gum and the chemical modification thereof, hydroxyethyl konjak gum, carboxy methyl konjaku glue, carboxy-methyl hydroxy propyl konjak gum, carboxymethyl hydroxyethyl konjak gum.
Derivatives such as the hydroxypropyl Mongolian oak chestnut glue after Mongolian oak chestnut bean gum and the chemical modification, hydroxyethyl Mongolian oak chestnut glue, carboxymethyl Mongolian oak chestnut glue, carboxy-methyl hydroxy propyl Mongolian oak chestnut glue, carboxymethyl hydroxyethyl Mongolian oak chestnut glue.
" a kind of preparation method of quick-dissolving chemically modified vegetable gum " that number of patent application 200610105052.0 is introduced, instant type vegetable jelly wherein is to obtain by utilizing leguminous plant films such as guar gum, fenugreek gum, sesbania gum, mushroom taro glue to carry out chemical reaction, extruding puffing, drying, pulverizing.
" a kind of preparation method of low molecular plant gum " that number of patent application 200910020939.3 is introduced, low molecular plant gum wherein is by the method for utilizing physics or chemistry, vegetable jelly such as high molecular guar gum, fenugreek gum, sesbania gum, mushroom taro glue, Mierocrystalline cellulose and their chemistry, the chain rupture of physically modified derivative is obtained.
And in the fracturing liquid except above-mentioned vegetable jelly thickening material, also must in fracturing liquid, add relevant additive, so that improve of the fracturing fluid over-all properties, reduce the injury of fracturing liquid to hydrocarbon zone.
The additive that must add in the vegetable jelly hydrofrac fluid commonly used mainly contains:
Be used to prevent the putrid sterilant of fracturing liquid vegetable jelly;
Prevent the clay stabilizer of hydrocarbon zone clay swelling migration;
The tensio-active agent of fluid and rock reactive force in reduction fracturing liquid and the hydrocarbon zone;
Prevent that fracturing liquid and crude oil from forming the emulsion splitter of milk sap;
Increase the whipping agent that formation hydrocarbon gas and fracturing liquid form stable foam.
Based on having fracturing fluid thickener and numerous additives in the above-mentioned fracturing liquid, on-site construction processes complexity, and because mistake adds or add less certain additive then can cause in various degree influence to of the fracturing fluid performance.
Summary of the invention
The multi-effect thickening agent for fracturing that the present invention produces is compared with respect to prior art, has carried out basic change on product functional, has following advantage with the fracturing liquid of its preparation:
1, product self has extremely strong anti-corrupt ability, can add during rig-site utilization to be used to prevent the putrid sterilant of fracturing liquid again.
2, fracturing liquid and broken glue raffinate thereof can prevent the expansion migration of hydrocarbon zone clay, needn't add clay stabilizer again.
3, fracturing liquid and broken glue raffinate thereof can effectively reduce fluid and rock reactive force in fracturing liquid and the hydrocarbon zone, do not need to add the capillary tensio-active agent of reduction again.
4, fracturing liquid and broken glue raffinate thereof can prevent effectively that the aqueous solution and crude oil from forming milk sap, do not need to add emulsion splitter again;
5, can form stable foam with formation hydrocarbon gas behind the fracturing liquid rubber-breaking, need not add whipping agent.
For achieving the above object, the technical solution used in the present invention is:
Multi-effect thickening agent for fracturing and preparation method thereof is characterized in that: utilize vegetable jelly or its hydroxypropyl, hydroxyethyl, carboxymethylated derivative to carry out chemical graft reaction, drying, pulverizing and obtain.
Its process flow sheet is:
Its production process is:
1, reaction and neutralization:
The chemical reaction proportioning is:
100 parts of vegetable jelly or derivatives thereofs
Mineral alkali 1-30 part
R1X 1-10 part
R2X 1-50 part
R3X 1-50 part
Inorganic or organic acid 1-100 part
Water 10-100 part
Temperature of reaction in chemical modification is that 50-100 ℃, reaction times are 0.5-8 hour.
The chemical reaction process process is:
According to above-mentioned chemical reaction proportioning, mineral alkali, vegetable jelly or derivatives thereof are fully mixed in reactor, under condition of stirring, add R1X, R2X, R3X and water then respectively, stir, be warming up to 50 ℃-60 ℃, reaction is 2-4 hour under this temperature, be cooled to below 30 ℃, add inorganic or organic acid, stir, react evenly, discharging.
Above-mentioned vegetable jelly or derivatives thereof is meant:
In the guar gum of different molecular weight, hydroxypropylguar gum, hydroxyethyl guar gum, carboxymethyl guar glue, Carboxymethyl hydroxypropyl guar, the carboxymethyl hydroxyethyl guar gum one or more.
In the fenugreek gum of different molecular weight, hydroxypropyl fenugreek gum, hydroxyethyl fenugreek gum, carboxymethyl fenugreek gum, carboxy-methyl hydroxy propyl fenugreek gum, the carboxymethyl hydroxyethyl fenugreek gum one or more.
One or more of the sesbania gum of different molecular weight, hydroxypropyl sesbania gum, hydroxyethyl sesbania gum, carboxymethyl sesbania gum, carboxy-methyl hydroxy propyl sesbania gum, carboxymethyl hydroxyethyl sesbania gum.
One or more of the Mierocrystalline cellulose of different molecular weight, hydroxypropylcellulose, Natvosol, carboxymethyl cellulose, carboxymethyl hydroxypropyl cellulose, carboxymethyl hydroxyethyl cellulose.
One or more of the konjak gum of different molecular weight, hydroxypropyl konjak gum, hydroxyethyl konjak gum, carboxy methyl konjaku glue, carboxy-methyl hydroxy propyl konjak gum, carboxymethyl hydroxyethyl konjak gum.
One or more of the Mongolian oak of different molecular weight chestnut glue, hydroxypropyl Mongolian oak chestnut glue, hydroxyethyl Mongolian oak chestnut glue, carboxymethyl Mongolian oak chestnut glue, carboxy-methyl hydroxy propyl Mongolian oak chestnut glue, carboxymethyl hydroxyethyl Mongolian oak chestnut glue.
Above-mentioned R1 is meant that molecular formula is
Material, wherein m≤5, n≤5.
Above-mentioned R2 is meant that molecular formula is
Material, m≤5 wherein.
Above-mentioned R3 is meant that molecular formula is
Material, wherein m 〉=2, n 〉=3.
Above-mentioned X is meant chlorine (Cl) or bromine (Br);
Above-mentioned mineral alkali is meant the oxyhydroxide or the basic salt of sodium, potassium, as sodium hydroxide (potassium), yellow soda ash (potassium), sodium bicarbonate (potassium) etc.
Above-mentioned inorganic or organic acid is meant the inorganic or organic acid that all kinds of energy are water-soluble, example hydrochloric acid, sulfuric acid, acetate etc.
2, dry, pulverizing:
To under 60-120 ℃, be dried to its moisture 10-20% of reaching through " 1, reaction with neutralize " material afterwards, and utilize pulverizer to pulverize, pack then, promptly get multi-effect thickening agent for fracturing.
Embodiment
Specific embodiment 1:
In the closed reactor of belt stirrer and heating unit, add 100 parts of guar gum flours, 10 parts of solid sodium hydroxides respectively, stirred 15 minutes, under condition of stirring, add 3 parts respectively then
6 parts
5 parts
With 100 parts of water, stirred 15 minutes, be warming up to 50 ℃-60 ℃, reaction is 2 hours under this temperature, is cooled to below 30 ℃, adds 28 part 31% technical hydrochloric acid, stirs discharging 15 minutes.
Above-mentioned substance is carried out drying by the pulsed gas flow drying machine, and the temperature that keeps dry in the machine is not higher than 80 ℃, dried matter enters pulverizer and pulverizes, packs, and promptly gets pressure break multiple-effect guar gum flour.
Specific embodiment 2:
In the closed reactor of belt stirrer and heating unit, add 100 parts of hydroxypropyl guar rubber powders, 5 parts of solid sodium hydroxides respectively, stirred 15 minutes, under condition of stirring, add 2 parts respectively then
10 parts
10 parts
With 80 parts of water, stirred 15 minutes, be warming up to 50 ℃-60 ℃, reaction is 1.5 hours under this temperature, is cooled to below 30 ℃, adds 5 parts of acetic acid, stirs discharging 15 minutes.
Above-mentioned substance is carried out drying by the pulsed gas flow drying machine, and the temperature that keeps dry in the machine is not higher than 80 ℃, dried matter enters pulverizer and pulverizes, packs, and promptly get pressure break usefulness multiple-effect hydroxypropyl guar rubber powder.
Specific embodiment 3:
In the closed reactor of belt stirrer and heating unit, add 100 parts of carboxymethyl guar rubber powders, 4 parts of solid sodium hydroxides respectively, stirred 15 minutes, under condition of stirring, add 1 part respectively then
6 parts
8 parts
With 60 parts of water, stirred 15 minutes, be warming up to 50 ℃-60 ℃, reaction is 3 hours under this temperature, is cooled to below 30 ℃, adds 4 parts of acetic acid, stirs discharging 15 minutes.
Above-mentioned substance is carried out drying by the pulsed gas flow drying machine, and the temperature that keeps dry in the machine is not higher than 80 ℃, dried matter enters pulverizer and pulverizes, packs, and promptly get pressure break usefulness multiple-effect carboxymethyl guar rubber powder.
Specific embodiment 4:
In the closed reactor of belt stirrer and heating unit, add 100 parts of Carboxymethyl hydroxypropyl guar powder, 4 parts of solid sodium hydroxides respectively, stirred 15 minutes, under condition of stirring, add 3 parts respectively then
6 parts
8 parts
With 60 parts of water, stirred 15 minutes, be warming up to 50 ℃-60 ℃, reaction is 2 hours under this temperature, is cooled to below 30 ℃, adds 4 parts of acetic acid, stirs discharging 15 minutes.
Above-mentioned substance is carried out drying by the pulsed gas flow drying machine, and the temperature that keeps dry in the machine is not higher than 80 ℃, dried matter enters pulverizer and pulverizes, packs, and promptly get pressure break usefulness multiple-effect Carboxymethyl hydroxypropyl guar powder.
Claims (9)
1. multi-effect thickening agent for fracturing and preparation method thereof is characterized in that: utilize vegetable jelly or vegetable jelly hydroxypropyl, hydroxyethyl, carboxymethylated derivative by following chemical reaction proportioning:
100 parts in vegetable jelly or vegetable jelly hydroxypropyl, hydroxyethyl, carboxymethylated derivative
Mineral alkali 1-30 part
R1X 1-10 part
R2X 1-50 part
R3X 1-50 part
Inorganic or organic acid 1-30 part
Water 10-100 part
Through the reacted material drying of chemical graft, pulverizing and obtain described multi-effect thickening agent for fracturing.
2. multi-effect thickening agent for fracturing according to claim 1 and preparation method thereof is characterized in that: the temperature of reaction in the described chemical reaction is that 50-100 ℃, reaction times are 0.5-8 hour.
3. multi-effect thickening agent for fracturing according to claim 1 and preparation method thereof, it is characterized in that: by described chemical reaction proportioning, mineral alkali, vegetable jelly or derivatives thereof are fully mixed in reactor, in stirring, add R1X, R2X, R3X and water then respectively, until stirring, be warming up to 50 ℃-60 ℃, reaction is 2-4 hour under this temperature, is cooled to below 30 ℃, adds inorganic or organic acid, stir, react evenly, discharging.
4. multi-effect thickening agent for fracturing according to claim 1 and preparation method thereof is characterized in that: described vegetable jelly is meant guar gum, fenugreek gum, sesbania gum, Mierocrystalline cellulose, konjak gum, Mongolian oak chestnut bean gum.
5. multi-effect thickening agent for fracturing according to claim 1 and preparation method thereof is characterized in that: described vegetable jelly hydroxypropyl, hydroxyethyl, carboxymethylated derivative are meant the derivative that is produced after guar gum, fenugreek gum, sesbania gum, Mierocrystalline cellulose, konjak gum, Mongolian oak chestnut bean gum are by one or more chemical modifications in hydroxypropyl, hydroxyethyl, the carboxymethylation.
6. multi-effect thickening agent for fracturing according to claim 1 and preparation method thereof, it is characterized in that: described R1 is meant that molecular formula is
Material, wherein m≤5, n≤5.
7. multi-effect thickening agent for fracturing according to claim 1 and preparation method thereof, it is characterized in that: described R2 is meant that molecular formula is
Material, m≤5 wherein.
8. multi-effect thickening agent for fracturing according to claim 1 and preparation method thereof, it is characterized in that: described R3 is meant that molecular formula is
Material, wherein m 〉=2, n 〉=3.
9. multi-effect thickening agent for fracturing according to claim 1 and preparation method thereof, it is characterized in that: described X is meant chlorine (Cl) or bromine (Br).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010127317A CN101798504A (en) | 2010-03-09 | 2010-03-09 | Multi-effect thickening agent for fracturing and preparation method thereof |
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| CN201010127317A CN101798504A (en) | 2010-03-09 | 2010-03-09 | Multi-effect thickening agent for fracturing and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690369A (en) * | 2012-06-19 | 2012-09-26 | 南充市正达化工研究所 | Production method of hydroxypropyl konjac glucomannan and product |
| CN104342102A (en) * | 2014-04-25 | 2015-02-11 | 北京世纪中星能源技术有限公司 | Non-crosslinked fracturing fluid for production increase for oil field oil-gas well, and preparation and construction method of non-crosslinked fracturing fluid |
| CN112251212A (en) * | 2020-10-26 | 2021-01-22 | 吉林省海港化工有限公司 | Fenugreek gum for fracturing fluid, fracturing fluid and preparation method of fenugreek gum |
-
2010
- 2010-03-09 CN CN201010127317A patent/CN101798504A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690369A (en) * | 2012-06-19 | 2012-09-26 | 南充市正达化工研究所 | Production method of hydroxypropyl konjac glucomannan and product |
| CN104342102A (en) * | 2014-04-25 | 2015-02-11 | 北京世纪中星能源技术有限公司 | Non-crosslinked fracturing fluid for production increase for oil field oil-gas well, and preparation and construction method of non-crosslinked fracturing fluid |
| CN112251212A (en) * | 2020-10-26 | 2021-01-22 | 吉林省海港化工有限公司 | Fenugreek gum for fracturing fluid, fracturing fluid and preparation method of fenugreek gum |
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Application publication date: 20100811 |