CN104974738B - A kind of water-base gel fracturing fluid and its application - Google Patents
A kind of water-base gel fracturing fluid and its application Download PDFInfo
- Publication number
- CN104974738B CN104974738B CN201410142368.1A CN201410142368A CN104974738B CN 104974738 B CN104974738 B CN 104974738B CN 201410142368 A CN201410142368 A CN 201410142368A CN 104974738 B CN104974738 B CN 104974738B
- Authority
- CN
- China
- Prior art keywords
- fracturing fluid
- gum
- weight
- hydroxyalkylation
- thickener
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Cosmetics (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention discloses a kind of water-base gel fracturing fluid, which contains thickener, crosslinking agent and water, which is characterized in that the thickener is the microbiological gum of hydroxyalkylation.The present invention also provides application of the above-mentioned water-base gel fracturing fluid in oil exploitation.The insoluble matter of the microbiological gum of hydroxyalkylation in of the invention is few, adhesiveness is good, and the water-base gel fracturing fluid obtained as thickener has excellent cross-linking properties, solid-carrying performance and lower broken glue residue content.
Description
Technical field
The present invention relates to a kind of application of water-base gel fracturing fluid and the fracturing fluid in oil exploitation.
Background technique
Since the middle of last century, hydraulic fracturing technology is always the Main Yield-increasing technology of domestic and international oil and gas development.Into
The exploitation hot spot of new century, world energy sources exploitation are shifted to unconventional petroleum resources.Hydraulic fracturing technology is as tight sand oil
The key technology of the unconventional developments of resources such as gas, coal bed gas, shale oil gas, is highly valued.The pressure break of Low Damage, low cost
Liquid system is as the key link for ensureing pressing crack construction success and raising yield increase effect and by attention.Aqueous fracturing fluid mainly by
The composition such as polymer viscosifier, crosslinking agent, gel breaker, pH adjusting agent, fungicide, clay stabilizer and cleanup additive.Wherein increase
Thick dose be fracturing fluid basic additive, effect be improve water viscosity, reduce fluid loss, suspend with carry proppant,
Therefore, the performances such as the water insoluble matter content of thickener, tackifying ability, heatproof, salt resistance and shear resistant, which become, improves fracturing fluid
Research emphasis.
Guar gum and its hydroxypropylation or carboxymethylated derivative are the most important thickeners of aqueous fracturing fluid system.But by
Lead to the lasting increase of demand in the fast development of the limited and recent untraditional reservoir exploitation of planting area, guar gum price flies
Rise.In addition to guar gum and derivative, there are also fenugreek gum, sesbania gum, soap benevolence glue and its derivatives for domestic common natural plant gum.Fenugreek gum
It is the last century main thickener of six the seventies pressure breaks, Technical comparing is mature, has the condition of extensive field application, but close
More than ten years are not applied in pressure break, to be used for oil field fracturing on a large scale, equally exist limited source, price is difficult to control
Problem.Also, the water insoluble matter content of natural plant gum is high, is easily unable to long-term preservation by biological decomposition.Therefore being badly in need of developing can be with
The product of complete substituted plant glue thickener.
Compared with natural plant gum, the production of microbiological gum by the factors such as geographical environment, weather, natural calamity influenced compared with
Small, yield and quality are all very stable, and sexual valence is relatively high, therefore cause the extensive concern of people, and studied and
Using.Microbiological gum, that is, microbial metabolism glue, also referred to as Microbe synthesis glue, microbiological gum are to utilize biotechnology in recent decades
The new bio chemical products of exploitation, it is safe and nontoxic and has unique physicochemical property, has in many fields and widely answers
With.It is rather popular to the research of various microbial metabolism glue in the world at present, find commercially valuable very much, business at present
Development and application mainly have xanthan gum (Xanthan gum), gellan gum (Gellan gum), welan gum (welan gum), can obtain
Right glue (Curdlan), glucan (Dextran), pulullan polysaccharide (Pullulan), scleroglycan (Scleroglucan)
Deng.However, thickening property difference and water insoluble matter content are more when natural microbial glue is as fracturing fluid thickener, lead to shape
At fracturing fluid viscosity it is not high, level of residue is high, and shearing property is poor, is not easy to be crosslinked, and it is difficult to break glue.
Summary of the invention
It is poor due to joined water insoluble matter content height and thickening property in existing fracturing fluid it is an object of the invention to overcome
Thickener and cause to be not easy to be crosslinked, the defects of viscosity is low, residue content is high, provide that a kind of easily crosslinking, viscosity is high and residue
The low water-base gel fracturing fluid of content and its application.
To achieve the goals above, the present invention provides a kind of water-base gel fracturing fluid, which contains thickener and friendship
Join agent, wherein the thickener is the microbiological gum of hydroxyalkylation.
It is another object of the present invention to provide application of the above-mentioned fracturing fluid in oil exploitation.
Using the microbiological gum of hydroxyalkylation as thickener, which can be handed over the present invention with crosslinking action
After connection, obtained water-base gel fracturing fluid of the invention, it is excellent which has that viscosity is high, frictional resistance is small, heat resistance is high etc.
It is strong can to take proppant ability for oil exploitation for point, at the same broken glue return row after level of residue it is few, improve the matter of exploited crude oil
Amount.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present invention provides a kind of water-base gel fracturing fluid, which contains thickener and crosslinking agent, wherein the increasing
The thick dose of microbiological gum for hydroxyalkylation.
Fracturing fluid according to the present invention, although the microbiological gum of the hydroxyalkylation as thickener of any content and any
The crosslinking agent of content can be crosslinked and form water-base gel fracturing fluid of the invention, but under preferable case, relative to 1 weight
The thickener of part, the content of the crosslinking agent are 0.05-6 parts by weight, preferably 0.2-1 parts by weight.
Fracturing fluid according to the present invention, although the microbiological gum of any hydroxyalkylation can be used as fracturing fluid of the invention
In thickener, it is preferred that in the case of, in the microbiological gum of the hydroxyalkylation, the hydroxyalkyl be C2~C10 hydroxyl
Alkyl, the more preferably hydroxyalkyl of C2~C6 are still more preferably the hydroxyalkyl of C2-C4.Specifically, the hydroxyalkyl is for example
It can be ethoxy, hydroxypropyl, 2- hydroxyisopropyl, 4- hydroxy-n-butyl, 2- hydroxyisobutyl, 2- hydroxy tert-butyl, 5- hydroxyl
One of base n-pentyl, 4- hydroxyl isopentyl and 6- hydroxyl n-hexyl are a variety of.
Fracturing fluid according to the present invention, the microbiological gum of the hydroxyalkylation can be the various microorganisms of this field routine
The hydroxyalkylation product of glue, under preferable case, the microbiological gum is xanthan gum, gellan gum, welan gum, glucan, can obtain so
One of glue and Propiram are a variety of, and more preferably xanthan gum, gellan gum and welan gum is one or more, further excellent
It is selected as xanthan gum.
The microbiological gum of above-mentioned hydroxyalkylation can be commercial product, is also possible to experiment synthesis and obtains.It is adopted in the present invention
The preparation method of the microbiological gum of hydroxyalkylation include: under alkaline condition, by microbiological gum and hydroxyalkylation reagent into
Row haptoreaction.
In order to enable the degree of substitution of the hydroxyalkyl in the microbiological gum of hydroxyalkylation be 0.1-0.55, preferably 0.2-0.4,
Preferably, the weight ratio of the dosage of the microbiological gum and hydroxyalkylation reagent is 100:(5-40), more preferably 100:(8-
25).
Wherein, the microbiological gum is not particularly limited, such as can be poly- for xanthan gum, gellan gum, welan gum, Portugal
One of sugar, curdlan and Propiram are a variety of.
The hydroxyalkylation reagent is the various reagents for enabling to the hydroxyl on microbiological gum to replace upper hydroxyalkyl, such as
Alkylene oxide and/or halogenated epoxy.The alkylene oxide can be for example one in ethylene oxide, propylene oxide and 1,2- epoxy butane
Kind or it is a variety of, the haloalkylene oxide for example can for one of epoxychloropropane, epoxy bromopropane and Epiiodohydrin or
It is a variety of.
The alkali of alkaline condition is maintained to be not particularly limited, it is excellent as long as being able to maintain that reaction solution is alkaline solution
In the case of choosing, the alkali is one of sodium hydroxide, potassium hydroxide and lithium hydroxide or a variety of.
The reaction condition of the contact is preferred are as follows: reaction temperature is 30-90 DEG C, and the reaction time is 2-5 hours.And it is above-mentioned
Haptoreaction can carry out under normal pressure, and solvent used can be isopropanol and/or acetone.
The microbiological gum of above-mentioned hydroxyalkylation is mainly that the hydroxyl in microbiological gum is carried out hydroxyalkylation, the hydroxyalkyl
Changing reagent can react with any one hydroxyl in microbiological gum structure, under preferable case, the hydroxyalkylation reagent with
The hydroxyl of 6 carbon atoms of the glucose on microbiological gum main chain reacts.The degree of substitution of the hydroxyalkyl is by averagely every
Substituted hydroxyl value is determined in the repetitive unit of a microbiological gum main chain, under preferable case, the degree of substitution of the hydroxyalkyl
For 0.1-0.5, more preferably 0.2-0.4.When the degree of substitution of the hydroxyalkyl within the above range when, obtained microbiological gum is not
Only more good water solubility, and viscosity is also more suitable for preparing fracturing fluid.
Fracturing fluid according to the present invention needs to be added friendship to be crosslinked and formed frozen glue for the microbiological gum of hydroxyalkylation
Join agent.The selection of the crosslinking agent is not particularly limited, as long as the microbiological gum of hydroxyalkylation of the invention is enabled to send out
Raw crosslinking.Under preferable case, the crosslinking agent is cumyl peroxide DCP, aziridine crosslinker (such as SAC-100
Type), organic zirconium crosslinker (such as YBJ-3 type), one of organic titanium cross-linking agent (such as TYZOR TE type) and crosslinking agent TAIC or
It is a variety of.
Fracturing fluid of the invention can also contain other additives, the additive can be this field it is conventional for making
One of additive, such as expansion-resisting agent, cleanup additive, alkali of standby water-base gel fracturing fluid etc. are a variety of, it is preferable that the addition
Agent is expansion-resisting agent, cleanup additive and alkali.The content of above-mentioned additive can be any content, as long as aqueous gel pressure break can be obtained
Liquid.Under preferable case, relative to the thickener of 1 parts by weight, the dosage of the additive is 0.05-4 parts by weight, more
Preferably 1-3.5 parts by weight.
Fracturing fluid according to the present invention, the fracturing fluid can also contain water, that is, the fracturing fluid can be aqueous solution
Form.Wherein, the content of water can be any content, as long as the fracturing fluid is enabled to form aqueous solution, such as phase
For the thickener of 1 parts by weight, the content of water can be 100-500 parts by weight, preferably 300-400 parts by weight.Work as institute
When stating the content of water in fracturing fluid and being in above range particularly preferably range, micro- life of the hydroxyalkylation in the fracturing fluid
After object glue and crosslinking agent crosslink in water, the residue content of resulting water-base gel fracturing fluid is lower, the aqueous gel pressure
The modest viscosity for splitting liquid is more applicable in oil exploitation.
In a preferred embodiment of the invention, fracturing fluid of the invention contains thickener, crosslinking agent, water, prevents
Swollen dose, cleanup additive and alkali.Wherein, the thickener is the microbiological gum of hereinbefore described hydroxyalkylation, the crosslinking agent
Consistent with hereinbefore described crosslinking agent, the alkali can be for example one of sodium hydroxide, potassium hydroxide, calcium hydroxide etc.
Or it is a variety of, the expansion-resisting agent for example can be one of potassium chloride, quaternary surfactant, polyamine, poly- quaternary amine etc. or more
Kind, the cleanup additive for example can for fluorine carbon cleanup additive FC-117, the modified poly- trisiloxanes cleanup additive BD-3078 of ethyoxyl,
One of Gemini surface active cleanup additive BA1-5 etc. or a variety of.
Also, in a kind of fracturing fluid of preferred embodiment of the invention, relative to the water of 100 parts by weight, the hydroxyl
Alkylated microbiological gum, crosslinking agent, alkali, expansion-resisting agent and cleanup additive content be respectively 1-0.1 parts by weight, 0.6-0.05 weight
Part, 0.6-0.05 parts by weight, 1.2-0.2 parts by weight and 1.2-0.2 parts by weight.
The present invention also provides application of the above-mentioned aqueous fracturing fluid in oil exploitation.
The present invention will be described in detail by way of examples below.
In following test case, the inherent viscosity of polymer is that " polyacrylamide characteristic is viscous according to GB/T12005.1-89
Degree measuring method " in method be measured；
Solid content is surveyed according to the method in GB/T12005.2-1989 " polyacrylamide determination of solid content method "
It is fixed；
Dissolution time is according to petroleum exploration and development research institute, Henan Oil Field branch company experimental center job instruction Q/
Method specified in HNYJ325-2007 is measured；
Water insoluble matter content is according to the side in GB/T9738-2008 " chemical reagent-water insoluble substance determination universal method "
Method is measured；
Base fluid apparent viscosity is carried out according to the method in SY/T5764-2007 " pressure break natural plant gum generic specifications "
Measurement；
Viscosity average molecular weigh is according to formula Mv=([η]/K)1/α, wherein K=4.5 × 10-3, α=0.80 is calculated；
Temperature and shearing sustainability is carried out according to the method in SY/T5107-2005 " aqueous fracturing fluid method of evaluating performance "
Measurement；
Broken colloidality can be measured according to the method in SY/T5107-2005 " aqueous fracturing fluid method of evaluating performance "；
The degree of substitution of hydroxyalkyl is the deuterated water dissolution for containing 10% deuterated hydrochloric acid by using sample, and is added with 70 DEG C of water-baths
After hydrolyzing half an hour under enthusiastic condition, the method measurement of hydrogen spectrum analysis is carried out on nuclear magnetic resonance chemical analyser, calculation method is: benefit
With the peak of galactolipin or mannose anomeric proton etc. on the peak integral area and microbiological gum chain of the characteristic group in substituent group
Integral area (selection at the peak and integral area size need depending on the structure of specific microbiological gum, in a word here
Peak integral area represents the quantity of the structural unit of the specific microbiological gum) the ratio between calculate the substitution of each ion etherifying agent
Degree is to get on the structural unit on averagely each microbiological gum chain, the number of the hydroxyl replaced by etherificate；
Ambient cross-linking performance and broken glue residue content are according to SY/T5107-2005 " aqueous fracturing fluid method of evaluating performance "
In method be measured；
The measuring method of room temperature solid-carrying performance: it prior to appropriate fracturing fluid is added in graduated cylinder, then weighs 10g proppant and is placed in
On liquid level, 12h observation sedimentation situation is stood；The viscosity of fracturing fluid is measured with Brookfield viscosimeter.
Xanthan gum in following embodiment (glues equal 2,030,000 gmol of molecular mass-1) purchased from Tianjin Skien think of biochemical technology
Co., Ltd, gellan gum (glue equal 1,510,000 gmol of molecular mass-1) it is purchased from Shanghai Zhi Xin Chemical Co., Ltd., welan gum is (viscous equal
3,100,000 gmol of molecular weight-1) it is purchased from the smooth Science and Technology Co., Ltd. of upper Haitai, epoxychloropropane is purchased from Beijing Chemical Plant, epoxy
Ethane is purchased from Beijing Chemical Plant, and 1,2- epoxy butane is purchased from Beijing Chemical Plant, and organic zirconium crosslinker YBJ-3 is purchased from Xi'an Asia nation stone
Oily Science and Technology Ltd., fluorine carbon cleanup additive FC-117 are purchased from Shanghai Jian Hong Industrial Co., Ltd., the specification Switzerland of nuclear-magnetism instrument
Bruker company AVANCE300MHz.
Preparation example 1
The preparation example is used to illustrate the preparation method of the microbiological gum of hydroxyalkylation.
100kg xanthan gum is dissolved in 650L isopropanol, nitrogen 30min is led to, is added 35kg's at being 20 DEG C in temperature
The aqueous solution of the sodium hydroxide of 20 weight %, stir 30min after add 35kg 25 weight % epoxychloropropane ethyl alcohol it is molten
Liquid is warming up to 80 DEG C, reacts 4h.After reaction, it is neutralized, is filtered with acetic acid, washed, dried, crushed, obtain 96kg hydroxyl
Propyl xanthan gum X1, viscosity average molecular weigh are 2,050,000 gmol-1, the degree of substitution of hydroxypropyl is 0.33.
Preparation example 2
The preparation example is used to illustrate the preparation method of the microbiological gum of hydroxyalkylation.
100kg xanthan gum is dissolved in 600L isopropanol, nitrogen 30min is led to, is added 35kg's at being 20 DEG C in temperature
The aqueous solution of the sodium hydroxide of 20 weight %, stir 30min after add 10kg 80 weight % ethylene oxide ethanol solution,
80 DEG C are warming up to, 4h is reacted.After reaction, it is neutralized, is filtered with acetic acid, washed, dried, crushed, obtain 94kg hydroxyl second
Base xanthan gum X2, viscosity average molecular weigh are 2,180,000 gmol-1, the degree of substitution of ethoxy is 0.21.
Preparation example 3
The preparation example is used to illustrate the preparation method of the microbiological gum of hydroxyalkylation.
100kg xanthan gum is dissolved in 700L isopropanol, nitrogen 30min is led to, is added 40kg's at being 20 DEG C in temperature
The aqueous solution of the sodium hydroxide of 20 weight %, stir 30min after add 30kg 70 weight % 1,2- epoxy butane ethyl alcohol
Solution is warming up to 80 DEG C, reacts 4h.After reaction, it is neutralized, is filtered with acetic acid, washed, dried, crushed, obtain 94kg
Hydroxyl butyl xanthan gum X3, viscosity average molecular weigh are 2,230,000 gmol-1, the degree of substitution of hydroxyl butyl is 0.37.
Preparation example 4
The preparation example is used to illustrate the preparation method of the microbiological gum of hydroxyalkylation.
100kg gellan gum is dissolved in 600L isopropanol, nitrogen 30min is led to, is added 45kg's at being 20 DEG C in temperature
The aqueous solution of the sodium hydroxide of 20 weight %, stir 30min after add 31kg 75 weight % epoxychloropropane ethyl alcohol it is molten
Liquid is warming up to 60 DEG C, reacts 3h.After reaction, it is neutralized, is filtered with citric acid, washed, dried, crushed, obtain 95kg
Hydroxypropyl gellan gum G1, viscosity average molecular weigh are 1,530,000 gmol-1, the degree of substitution of hydroxypropyl is 0.25.
Preparation example 5
The preparation example is used to illustrate the preparation method of the microbiological gum of hydroxyalkylation.
100kg welan gum is dissolved in 600L isopropanol, nitrogen 30min is led to, is added 45kg's at being 20 DEG C in temperature
The aqueous solution of the sodium hydroxide of 20 weight %, stir 30min after add 31kg 75 weight % epoxychloropropane ethyl alcohol it is molten
Liquid is warming up to 60 DEG C, reacts 3h.After reaction, it is neutralized, is filtered with citric acid, washed, dried, crushed, obtain 95kg
Hydroxypropyl welan gum W1, viscosity average molecular weigh are 3,170,000 gmol-1, the degree of substitution of hydroxypropyl is 0.25.
Embodiment 1
The present embodiment is for illustrating water-base gel fracturing fluid of the invention.
Product X 1-X3, G1 and W1 and xanthan gum X, the gellan gum G and welan gum W of preparation example 1-5 are respectively weighed into 250g
It is dissolved in water, then is separately added into 200g organic zirconium crosslinker YBJ-3,200g sodium hydroxide, 300g potassium chloride and 300g fluorine carbon and helps row
Agent FC-117 is stirred to get the water-base gel fracturing fluid for the thickener for containing above-mentioned different microbiological gum to 100kg.
Test case 1
Respectively to product X 1-X3, G1 and W1 in preparation example 1-5 do nucleus magnetic hydrogen spectrum (1H-NMR), and its hydrogen is composed and is carried out
Analysis calculates ion and is etherified degree of substitution；Respectively to product X 1-X3, G1 and W1 and xanthan gum X, gellan gum in embodiment 1-5
The viscosity average molecular weigh of G and base welan gum W, solid content, dissolution time, water insoluble matter content, base fluid apparent viscosity and inherent viscosity
It is measured, measurement result is as shown in table 1；
Ambient cross-linking performance is carried out to corresponding water-base gel fracturing fluid obtained in embodiment 1 simultaneously, room temperature takes grittiness
The measurement of energy, temperature and shearing sustainability, broken colloidality energy and broken glue residue content, wherein ambient cross-linking performance measurement result shows
The water-base gel fracturing fluid crosslinking being prepared in embodiment 1 can be hung, and room temperature solid-carrying performance measurement result shows application implementation
The water-base gel fracturing fluid being prepared in example 1 can take sand, other performance measurement results are shown in Table in 2 corresponding microbiological gum data
Shown in column.
Table 1
Table 2
From table 1 and 2, the data for comparing X1-X3 and xanthan gum X, G1 and gellan gum G, W1 and welan gum W be can be seen that
The molecular weight of the microbiological gum of hydroxyalkylation all increased, while dissolution time is shorter in water, water-soluble more preferable, water-insoluble
Less, the water-base gel fracturing fluid obtained for thickener has preferable cross-linking properties and solid-carrying performance, and broken glue residue contains
It measures lower.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of water-base gel fracturing fluid, which contains thickener, crosslinking agent, additive and water, which is characterized in that described
Thickener is the microbiological gum of hydroxyalkylation, and in the microbiological gum of the hydroxyalkylation, hydroxyalkyl is the hydroxyalkyl of C2 ~ C10；
The degree of substitution of the hydroxyalkyl is 0.1-0.55；
The crosslinking agent is cumyl peroxide DCP, aziridine crosslinker, organic zirconium crosslinker, organic titanium cross-linking agent and friendship
Join one of agent TAIC or a variety of, relative to the thickener of 1 parts by weight, the content of the crosslinking agent is 0.05-6 weight
Part；
The additive is expansion-resisting agent, cleanup additive and alkali, relative to the thickener of 1 parts by weight, the dosage of the additive
For 0.05-4 parts by weight；
Relative to the thickener of 1 parts by weight, the content of water is 100-500 parts by weight；
Wherein, the preparation method of the microbiological gum of the hydroxyalkylation includes: under alkaline condition, by microbiological gum and hydroxyalkyl
Change reagent and carries out haptoreaction；The weight ratio of the dosage of the microbiological gum and the hydroxyalkylation reagent is 100:(5-40)；
Catalytic condition includes: that reaction temperature is 30-90 DEG C, and the reaction time is 2-5 hours.
2. fracturing fluid according to claim 1, wherein relative to the thickener of 1 parts by weight, the crosslinking agent contains
Amount is 0.2-1 parts by weight.
3. fracturing fluid according to claim 1, wherein in the microbiological gum of the hydroxyalkylation, hydroxyalkyl is C2 ~ C6
Hydroxyalkyl；The degree of substitution of the hydroxyalkyl is 0.2-0.4.
4. fracturing fluid described in any one of -3 according to claim 1, wherein the microbiological gum be xanthan gum, gellan gum,
One of welan gum, glucan, curdlan and Propiram are a variety of.
5. fracturing fluid according to claim 1, wherein the dosage of the microbiological gum and the hydroxyalkylation reagent makes
The degree of substitution of the microbiological gum of the hydroxyalkylation is 0.2-0.4.
6. fracturing fluid according to claim 1, wherein the weight of the dosage of the microbiological gum and the hydroxyalkylation reagent
Amount is than being 100:(8-25).
7. fracturing fluid described in any one of -3 and 5-6 according to claim 1, wherein the hydroxyalkylation reagent is epoxy
Alkane and/or haloalkylene oxide.
8. fracturing fluid according to claim 7, wherein the hydroxyalkylation reagent is ethylene oxide, propylene oxide, 1,2-
One of epoxy butane, epoxychloropropane, epoxy bromopropane and Epiiodohydrin are a variety of.
9. fracturing fluid according to claim 1, wherein relative to the thickener of 1 parts by weight, the use of the additive
Amount is 1-3.5 parts by weight.
10. application of the fracturing fluid in oil exploitation described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142368.1A CN104974738B (en) | 2014-04-10 | 2014-04-10 | A kind of water-base gel fracturing fluid and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142368.1A CN104974738B (en) | 2014-04-10 | 2014-04-10 | A kind of water-base gel fracturing fluid and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104974738A CN104974738A (en) | 2015-10-14 |
| CN104974738B true CN104974738B (en) | 2019-05-31 |
Family
ID=54271714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410142368.1A Active CN104974738B (en) | 2014-04-10 | 2014-04-10 | A kind of water-base gel fracturing fluid and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104974738B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733550B (en) * | 2016-03-29 | 2018-05-04 | 中国石油天然气股份有限公司 | A kind of recyclable fracturing fluid gelatinizer of amino acids and preparation method thereof |
| CN106634937A (en) * | 2016-12-29 | 2017-05-10 | 中国石油天然气股份有限公司 | Modified xanthan gum thickener and fracturing fluid |
| CN107267133A (en) * | 2017-06-07 | 2017-10-20 | 常州苏通海平机电科技有限公司 | A kind of composite fracturing fluid thickening agent and preparation method thereof |
| US9932512B1 (en) * | 2017-08-22 | 2018-04-03 | Saudi Arabian Oil Company | Compositions with polyaziridine crosslinkers for treating subterranean formations |
| CN107461166B (en) * | 2017-09-14 | 2023-04-07 | 吉林大学 | Magnetic refrigeration tube type heat preservation sampling drilling tool |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7825073B2 (en) * | 2004-07-13 | 2010-11-02 | Halliburton Energy Services, Inc. | Treatment fluids comprising clarified xanthan and associated methods |
| CN1277897C (en) * | 2004-09-17 | 2006-10-04 | 大庆油田有限责任公司 | Deep compact gas pool fracturing liquid |
| CN102492048A (en) * | 2011-11-29 | 2012-06-13 | 中国石油化学昆山公司 | Fracturing fluid thickening agent and fracturing fluid containing the same |
| CN102796507A (en) * | 2012-08-29 | 2012-11-28 | 北京世纪中星能源技术有限公司 | Xanthan gum fracturing fluid, and preparation method and application thereof |
| CN103570844B (en) * | 2013-11-20 | 2015-12-30 | 南京工业大学 | A kind of preparation method of carboxyethyl welan gum |
-
2014
- 2014-04-10 CN CN201410142368.1A patent/CN104974738B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104974738A (en) | 2015-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104974738B (en) | A kind of water-base gel fracturing fluid and its application | |
| CN104974266A (en) | Etherification-modified microorganism gum and preparation method thereof, water-base gel fracturing fluid containing the microorganism gum and application thereof | |
| Wang et al. | Effect of pH on the rheological properties of borate crosslinked hydroxypropyl guar gum hydrogel and hydroxypropyl guar gum | |
| CN104974267A (en) | Etherification-modified locust bean gum and preparation method thereof, water-base gel fracturing fluid containing the locust bean gum and application thereof | |
| CN109652053B (en) | High-temperature-resistant full-suspension low-damage fracturing fluid and preparation method thereof | |
| JPS60192753A (en) | Synergistic viscosifier composition | |
| CN103265939B (en) | A kind of fracturing fluid thickener and Synthesis and applications thereof | |
| KR101234471B1 (en) | Bacterial cellulose-containing formulations and method of producing effective bacterial cellulose-containing formulations | |
| CN103113486B (en) | Sulfonic acid modified Carboxymethyl hydroxypropyl guar and its preparation method and application | |
| JP2009515512A (en) | High viscosity diutane gum and production method | |
| CN101475797A (en) | Temperature resistant water base fracturing fluid thickening agent and preparation thereof | |
| MX2013001795A (en) | Wellbore servicing fluid comprising a cellulose ether. | |
| WO2023082781A1 (en) | Application of thermo-sensitive heteropolysaccharide polymer in improvement of oil recovery factor | |
| CN103059828A (en) | Thickening agent used for water base fracturing fluid and synthetic method thereof | |
| CN103740355A (en) | High-salinity water-based modified xanthan gum fracturing fluid and preparation method thereof | |
| CN110964496B (en) | Fracturing fluid thickening tackifier | |
| CN104974265A (en) | Etherification-modified konjac gum and preparation method thereof, water-base gel fracturing fluid containing the konjac gum and application thereof | |
| MX2013001791A (en) | Nonionic hydrophobically substituted cellulose ethers. | |
| CN111154009B (en) | Preparation method of diepoxide cross-linking agent modified xanthan gum | |
| Mota et al. | A comparison of the rheological behavior of xanthan gum and diutan gum aqueous solutions | |
| CN104892837A (en) | Preparation method of fluid loss agent for well-cementing cement slurry | |
| CN108219766A (en) | Macromolecule thickener and its preparation method and application | |
| CN105461821A (en) | Etherification modified seaweed gel, preparation method therefor, seaweed gel containing water-base gelled fracturing fluid and application thereof | |
| CN109517082B (en) | Non-long linear chain alkyl hydrophobically modified hydroxyethyl guar gum thickener and preparation method thereof | |
| CN107619660B (en) | Gelled acid thickener and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |