CN107663451A - A kind of composite multi-functional clean fracturing fluid and preparation method thereof - Google Patents
A kind of composite multi-functional clean fracturing fluid and preparation method thereof Download PDFInfo
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- CN107663451A CN107663451A CN201710740698.4A CN201710740698A CN107663451A CN 107663451 A CN107663451 A CN 107663451A CN 201710740698 A CN201710740698 A CN 201710740698A CN 107663451 A CN107663451 A CN 107663451A
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- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
- C09K8/685—Compositions based on water or polar solvents containing organic compounds containing cross-linking agents
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- 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
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Abstract
The invention discloses a kind of composite multi-functional clean fracturing fluid, by mass percentage including following components：Natural plant gum 0.1%~0.5%, hydrophobic type associated matter 0.1%~0.55%, crosslinking agent 0.2%~0.5%, organic antiparticle 0.2%~0.6%, clay stabilizer 0.8%~1.0%, surplus is water, and its component sum is 100%.The invention also discloses its preparation method：Natural plant gum, hydrophobic type associated matter and clay stabilizer are added in water respectively, after being sufficiently stirred 15min~30min, natural plant gum and hydrophobic type associated matter is fully swelled, obtains original gelatin；Crosslinking agent and Organic counter-ion are added in obtained original gelatin, composite multi-functional clean fracturing fluid is prepared after stirring 30s~60s.The present invention shows every advantage that Applicable temperature scope, the cost of fracturing fluid in use are relatively low, smaller to reservoir damage, heat resistance is good, anti-shear ability is strong, residue is almost nil by the compound use to hydrophobic associated polymer and natural plant gum using specific embodiment.
Description
Technical field
The invention belongs to petroleum fracturing liquid technical field, and in particular to a kind of composite multi-functional clean fracturing fluid, this hair
The bright preparation method for further relating to the composite multi-functional clean fracturing fluid.
Background technology
With the continuous progress of petroleum exploration and development technology, a large amount of hyposmosis, the oil gas field of extra-low permeability are exploited.It is low
The exploitation of adjustment well needs to can be only achieved economic development by pressure break.Fracturing fluid is the key components of fracturing technique.
The conventional fracturing fluid system of oil-gas field development has guanidine glue and modified guanidine gum fracturing fluid system, oligomer fracturing fluid system, table at present
Face activating agent clean fracturing liquid system.Guanidine glue and modified guanidine gum fracturing fluid system are a kind of conventional fracturing fluid systems, but mainly
There is broken glue it is difficult, larger to formation damage the shortcomings that；Oligomer fracturing fluid system there is mulling it is difficult, to formation damage
The shortcomings that larger, layer injury is almost nil over the ground for surfactant clean fracturing liquid system, but there is also non-refractory, cost
The shortcomings that higher.
The content of the invention
It is an object of the invention to provide a kind of composite multi-functional clean fracturing fluid, improves hydrophobic associated polymer fracturing fluid
Outstanding sand solid-carrying performance, reduce injury of the plant gum fracturing fluid to reservoir.
Another object of the present invention is to provide a kind of preparation method of composite multi-functional clean fracturing fluid.
The technical solution adopted in the present invention is a kind of composite multi-functional clean fracturing fluid, to include by mass percentage
Following components：Natural plant gum 0.1%~0.5%, hydrophobic associated polymer 0.1%~0.55%, crosslinking agent 0.2%~0.5%, have
Machine counter ion 0.2%~0.6%, clay stabilizer 0.8%~1.0%, surplus are water, and its component sum is 100%.
Another technical scheme of the present invention is a kind of preparation method of composite multi-functional clean fracturing fluid,
Comprise the following steps that：
Step 1, weigh respectively by mass percentage：Natural plant gum 0.1%~0.5%, hydrophobic associated polymer 0.1%~
0.55%, crosslinking agent 0.2%~0.5%, Organic counter-ion 0.2%~0.6%, clay stabilizer 0.8%~1.0%, surplus
For water, its component sum is 100%；
Step 2, the natural plant gum in step 1, hydrophobic associated polymer and clay stabilizer are added in water respectively, fully
After stirring 15min~30min, natural plant gum and hydrophobic associated polymer is fully swelled, obtain original gelatin；
Step 3, crosslinking agent and Organic counter-ion are added into the original gelatin obtained through step 2, after stirring 30s~60s, system
It is standby to obtain composite multi-functional clean fracturing fluid.
The method have the characteristics that：
Wherein natural plant gum is the one or more in hydroxypropyl guar, carboxymethyl guanidine glue, xanthans；
Wherein hydrophobic associated polymer is FRA-313 associated matters thickening agent, the non-crosslinked fracturing fluid thickening of GRF-1 association types
Agent, GRF-7 associated matters thickening agent or SXT-102 pressure break thickening agents；
Wherein crosslinking agent includes borax, sodium hydroxide, cosurfactant, high-temperature stabilizer, pH adjusting agent；It is described to help table
Face activating agent is that alkylsulfonate, sulfate or benzene sulfonate that carbon atom quantity is 12~16 are one or several kinds of；Wherein sulphur
Hydrochlorate is sodium alkyl sulfonate, alkyl sulfonic acid potassium or alkyl sulfonic acid ammonium；Sulfate is sodium alkyl sulfate, alkylsurfuric acid potassium or alkyl sulfide
Sour ammonium；Benzene sulfonate is sodium alkyl benzene sulfonate, alkyl benzene sulphonate potassium or alkyl benzene sulphonate ammonium；
Wherein Organic counter-ion is sodium salicylate, lauryl sodium sulfate, dodecyl sodium sulfate, DBSA
One or more of mixtures in sodium, hexadecyltrimethylammonium chloride, OTAC；
Wherein clay stabilizer is by hydroxypropyl ammonium salt, Choline Chloride, NH4One or several kinds of compositions in Cl, KCl, 0.8%
The aqueous solution is more than 95% to the anti-dilative of clay.
The beneficial effects of the invention are as follows：
Solved using the composite multi-functional clean fracturing fluid prepared by the preparation method of the present invention using natural plant gum to be thick
Residue is larger after the fracturing liquid rubber-breaking of agent, it is larger to reservoir damage the shortcomings that；Solves hydrophobic associated polymer mulling simultaneously
The shortcomings that effect is bad, and anti-shear ability is poor；On the other hand, the clean fracturing liquid system Applicable temperature scope is wide, cost compared with
Low and heat resistance is good.
Brief description of the drawings
It using the composite multi-functional clean fracturing fluid that is prepared of preparation method of the present invention in natural plant gum is Huang that Fig. 1, which is,
Anti-shear performance curve map of the present invention during virgin rubber；
It using the composite multi-functional clean fracturing fluid that is prepared of preparation method of the present invention in natural plant gum is hydroxyl that Fig. 2, which is,
Anti-shear performance curve map of the present invention during propyl guanidine glue；
It using the composite multi-functional clean fracturing fluid that is prepared of preparation method of the present invention in natural plant gum is carboxylic that Fig. 3, which is,
Anti-shear performance curve map of the present invention during methylguanidine glue.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
The present invention provides a kind of composite multi-functional clean fracturing fluid, by mass percentage including following components：Natural plant gum
0.1%~0.5%, hydrophobic associated polymer 0.1%~0.55%, crosslinking agent 0.2%~0.5%, Organic counter-ion 0.2%~
0.6%, clay stabilizer 0.8%~1.0%, surplus is water, and its component sum is 100%.
The preparation method of above-mentioned composite multi-functional clean fracturing fluid, is comprised the following steps that：
Step 1, weigh respectively by mass percentage：Natural plant gum 0.1%~0.5%, hydrophobic associated polymer 0.1%~
0.55%, crosslinking agent 0.2%~0.5%, Organic counter-ion 0.2%~0.6%, clay stabilizer 0.8%~1.0%, surplus
For water；
Step 2, the natural plant gum in step 1, hydrophobic associated polymer and clay stabilizer are added in water respectively, fully
After stirring 15min~30min, natural plant gum and hydrophobic type associated matter is fully swelled, obtain original gelatin；
Step 3, crosslinking agent and Organic counter-ion are added into the original gelatin obtained through step 2, after stirring 30s~60s, system
It is standby to obtain composite multi-functional clean fracturing fluid.
Hydrophobic associated polymer refers to the water-soluble poly that a small amount of hydrophobic grouping is carried on polymer hydrophilicity macromolecular chain
Compound.Under a certain amount of surfactant, hydrophobic associated polymer can be acted on surfactant by self assembly to be formed it is vertical
Body spacial framework, make the solution that there is good viscoelasticity, it is functional to hang sand.The self assembling process is non-chemical crosslinking
, viscosity reduces under high speed shear, and solid-carrying performance reduces.But natural plant gum (guanidine glue and modified guanidine gum fracturing fluid system) is being cut at a high speed
Cut viscosity reduce it is smaller, solid-carrying performance does not change substantially.
Therefore, hydrophobic associated polymer and natural plant gum thickening agent are subjected to compounding use, hydrophobic association polymerization can be improved
The outstanding sand solid-carrying performance of thing fracturing fluid, while the injury to reservoir can be reduced.Exploitation for low permeability oil and gas field has weight
The meaning wanted.
The composite multi-functional clean fracturing fluid prepared using the preparation method of the present invention, its feature are：With plant
Glue and the thickening agent that hydrophobic associated polymer is composite multi-functional clean fracturing fluid, solve the pressure using natural plant gum as thickening agent
Splitting liquid, residue is larger after breaking gel, it is larger to reservoir damage the shortcomings that；It is bad to solve hydrophobic associated polymer mulling effect simultaneously,
The shortcomings that anti-shear ability is poor.
As shown in figure 1, the figure is the composite multi-functional clean fracturing fluid being prepared using the preparation method of the present invention
The anti-shear performance curve map of the present invention when natural plant gum is xanthans, with the rising of temperature, under the apparent viscosity of system is quick
Drop, because the system belongs to non-newtonian fluid, has shear shinning, when a temperature increases, polymer molecular chain is gradual
The winding degree of stretching, extension, chain and interchain weakens, and system viscosity declines.When temperature continues increase, polymer solubility strengthens, body
Viscosity keeps balance in system；Under the conditions of 100 DEG C, 170s-1System viscosity is maintained at 90mPa.s after shearing 1h, can meet pressure
Split liquid and hang sand viscosity requirement.
As shown in Fig. 2 the figure is the composite multi-functional clean fracturing fluid being prepared using the preparation method of the present invention
The anti-shear performance curve map of the present invention when natural plant gum is hydroxypropyl guar, under the conditions of 100 DEG C, 170s-1System is glued after shearing 1h
Degree is maintained at 128mPa.s, can meet fracturing fluid and hang sand viscosity requirement.
As shown in figure 3, the figure is the composite multi-functional clean fracturing fluid being prepared using the preparation method of the present invention
The anti-shear performance curve map of the present invention when natural plant gum is carboxymethyl guanidine glue, under the conditions of 100 DEG C, 170s-1System is glued after shearing 1h
Degree is maintained at 131mPa.s, can meet fracturing fluid and hang sand viscosity requirement.
Embodiment 1
The composite multi-functional clean fracturing liquid system prepared using the preparation method of the present invention is by the Huang in natural plant gum
Virgin rubber, FRA-313 associated matters thickening agent, crosslinking agent, Organic counter-ion, clay stabilizer composition, specific steps include：
Step 1, weigh by mass percentage respectively：Xanthans 0.25%, FRA-313 associated matters thickening agent 0.25%, hand over
Join agent 0.5%, organic antiparticle 0.6%, clay stabilizer 0.8%, water 97.6%；
Step 2, the xanthans in step 1, FRA-313 associated matters thickening agent and clay stabilizer are added to water respectively
In, after being sufficiently stirred 15min, xanthans and FRA-313 associated matter thickening agents is fully swelled, obtain original gelatin；
Step 3, crosslinking agent and Organic counter-ion are added into the original gelatin obtained through step 2, after stirring 30s, is prepared into
To composite multi-functional clean fracturing fluid.
The test result of table 1
Shown by table 1：The composite multi-functional clean fracturing fluid being prepared using the preparation method of the present invention is in plant
In the case that glue uses xanthans, the performance carried out with FRA-313 associated matters thickening agent progress compounding use at 100 DEG C is surveyed
Examination, the data of the properties shown, wherein outstanding sand takes sand, anti-shear ability, residue content and the infringement to reservoir
Rate is all very superior.
Embodiment 2
The composite multi-functional clean fracturing liquid system prepared using the preparation method of the present invention is by the hydroxyl in natural plant gum
Propyl guanidine glue, the non-crosslinked fracturing fluid thickener of GRF-1 association types, crosslinking agent, Organic counter-ion, clay stabilizer composition, specifically
Step includes：
Step 1, weigh respectively by mass percentage：Hydroxypropyl guar 0.25%, the non-crosslinked fracturing fluid of GRF-1 association types increase
Thick dose 0.25%, crosslinking agent 0.5%, organic antiparticle 0.6%, clay stabilizer 0.8%, water 97.65%；
Step 2, it is respectively that the hydroxypropyl guar in step 1, the non-crosslinked fracturing fluid thickener of GRF-1 association types and clay is steady
Determine agent to be added in water, after being sufficiently stirred 15min, fill hydroxypropyl guar and the non-crosslinked fracturing fluid thickener of GRF-1 association types
Divide swelling, obtain original gelatin；
Step 3, crosslinking agent and Organic counter-ion are added into the original gelatin obtained through step 2, after stirring 30s, is prepared into
To composite multi-functional clean fracturing fluid.
The test result of table 2
Shown by table 2：The composite multi-functional clean fracturing fluid being prepared using the preparation method of the present invention is in plant
In the case that glue selects hydroxypropyl guar, fracturing fluid thickener non-crosslinked with GRF-1 association types carries out compounding use at 100 DEG C
Performance test is carried out, the data of the properties shown, wherein anti-shear ability are more superior.
Embodiment 3
The composite multi-functional clean fracturing liquid system is by the carboxymethyl guanidine glue in natural plant gum, hydrophobic associated polymer, friendship
Join agent, Organic counter-ion, clay stabilizer composition, specific steps include：
Step 1, weigh respectively by mass percentage：Carboxymethyl guanidine glue 0.25%, GRF-7 associated matters thickening agent 0.25%,
Crosslinking agent 0.5%, organic antiparticle 0.6%, clay stabilizer 0.8%, water 97.6%；
Step 2, carboxymethyl guanidine glue, GRF-7 associated matters thickening agent and the clay stabilizer in step 1 are added to water respectively
In, after being sufficiently stirred 15min, carboxymethyl guanidine glue and GRF-7 associated matter thickening agents is fully swelled, obtain original gelatin；
Step 3, crosslinking agent and Organic counter-ion are added in the original gelatin obtained to step 2, stirs 30s, is prepared multiple
Mould assembly Multifunctional clean fracturing fluid.
The test result of table 3
Shown by table 3：The composite multi-functional clean fracturing fluid that the preparation method of the present invention is prepared selects in natural plant gum
In the case of with carboxymethyl guanidine glue, carry out compounding use with GRF-7 associated matters thickening agent and performance test, institute are carried out at 100 DEG C
The data of the properties shown.
Embodiment 4
The composite multi-functional clean fracturing liquid system is thickened by the carboxymethyl guanidine glue in natural plant gum, SXT-102 pressure breaks
Agent, crosslinking agent, Organic counter-ion, clay stabilizer composition, specific steps include：
Step 1, weigh respectively by mass percentage：Carboxymethyl guanidine glue 0.35%, SXT-102 pressure breaks thickening agent 0.3%,
Crosslinking agent 0.4%, organic antiparticle 0.5%, clay stabilizer 0.9%, water 97.55%；
Step 2, the carboxymethyl guanidine glue in step 1, SXT-102 pressure breaks are added to thickening agent and clay stabilizer respectively
In water, 30min is sufficiently stirred, carboxymethyl guanidine glue and SXT-102 pressure breaks is fully swelled with thickening agent, obtains original gelatin；
Step 3, crosslinking agent and Organic counter-ion are added in the original gelatin obtained to step 2, stirs 40s, is prepared multiple
Mould assembly Multifunctional clean fracturing fluid.
Embodiment 5
The composite multi-functional clean fracturing liquid system is thickened by the carboxymethyl guanidine glue in natural plant gum, FRA-313 associated matters
Agent, crosslinking agent, Organic counter-ion, clay stabilizer composition, specific steps include：
Step 1, weigh respectively by mass percentage：Carboxymethyl guanidine glue 0.45%, FRA-313 associated matters thickening agent 0.5%,
Crosslinking agent 0.4%, organic antiparticle 0.5%, clay stabilizer 0.7%, water 97.45%；
Step 2, carboxymethyl guanidine glue, FRA-313 associated matters thickening agent and the clay stabilizer in step 1 are added to respectively
In water, 30min is sufficiently stirred, carboxymethyl guanidine glue and FRA-313 associated matter thickening agents is fully swelled, obtains original gelatin；
Step 3, crosslinking agent and Organic counter-ion are added in the original gelatin obtained to step 2, stirs 60s, is prepared multiple
Mould assembly Multifunctional clean fracturing fluid.
The composite multi-functional clean fracturing fluid being prepared using the preparation method of the present invention, test result are shown, are dredged
The compounding use of water association polymer and natural plant gum, solve prior art residue be larger in use, mulling effect not
Good, the problem of and anti-shear ability larger to reservoir damage is poor.
Claims (9)
1. a kind of composite multi-functional clean fracturing fluid, it is characterised in that by mass percentage including following components：Natural plant gum
0.1%~0.5%, hydrophobic associated polymer 0.1%~0.55%, crosslinking agent 0.2%~0.5%, Organic counter-ion 0.2%~
0.6%, clay stabilizer 0.8%~1.0%, surplus is water, and its component sum is 100%.
2. a kind of composite multi-functional clean fracturing fluid according to claim 1, it is characterised in that described natural plant gum is
One or several kinds in hydroxypropyl guar, carboxymethyl guanidine glue, xanthans.
3. a kind of composite multi-functional clean fracturing fluid according to claim 1, it is characterised in that the hydrophobic association gathers
Compound be FRA-313 associated matters thickening agent, the non-crosslinked fracturing fluid thickener of GRF-1 association types, GRF-7 associated matters thickening agent or
One kind in SXT-102 pressure break thickening agents.
4. a kind of composite multi-functional clean fracturing fluid according to claim 1, it is characterised in that the crosslinking agent is boron
One or more in sand, sodium hydroxide, cosurfactant, high-temperature stabilizer, pH adjusting agent.
5. a kind of composite multi-functional clean fracturing fluid according to claim 4, it is characterised in that described to help surface-active
Agent is one kind in the alkylsulfonate that carbon atom quantity is 12~16, sulfate or benzene sulfonate, or above-mentioned several salt
Mixture.
A kind of 6. composite multi-functional clean fracturing fluid according to claim 5, it is characterised in that the alkylsulfonate
For sodium alkyl sulfonate, alkyl sulfonic acid potassium or alkyl sulfonic acid ammonium；The alkyl sulfate is sodium alkyl sulfate, alkylsurfuric acid potassium or alkane
Base ammonium sulfate；The alkylbenzenesulfonate includes sodium alkyl benzene sulfonate, alkyl benzene sulphonate potassium or alkyl benzene sulphonate ammonium.
A kind of 7. composite multi-functional clean fracturing fluid according to claim 1, it is characterised in that the Organic counter-ion
For sodium salicylate, lauryl sodium sulfate, neopelex, hexadecyltrimethylammonium chloride, octadecyl front three
One or several kinds of mixtures in ammonium chloride.
A kind of 8. composite multi-functional clean fracturing fluid according to claim 1, it is characterised in that the clay stabilizer
By hydroxypropyl ammonium salt, Choline Chloride, NH4One or several kinds of compositions in Cl, KCl.
9. according to a kind of preparation method of any described composite multi-functional clean fracturing fluid of claim 1~8, its feature exists
In comprising the following steps that：
Step 1, weigh respectively by mass percentage：Natural plant gum 0.1%~0.5%, hydrophobic type associated matter 0.1%~0.55%,
Crosslinking agent 0.2%~0.5%, organic antiparticle 0.2%~0.6%, clay stabilizer 0.8%~1.0%, surplus is water；
Step 2, natural plant gum, hydrophobic type associated matter and clay stabilizer described in step 1 are added in water respectively, are sufficiently stirred
After 15min~30min, natural plant gum and hydrophobic associated polymer is fully swelled, obtain original gelatin；
Step 3, crosslinking agent and Organic counter-ion are added respectively into the original gelatin obtained through step 2, after stirring 30s~60s, system
It is standby to obtain composite multi-functional clean fracturing fluid.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113072920A (en) * | 2021-04-01 | 2021-07-06 | 陕西林荣桓业能源科技有限公司 | Oil-gas reservoir water-plugging profile control agent for heterogeneous crack development |
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| US20060199742A1 (en) * | 2005-03-02 | 2006-09-07 | Arisz Petrus Wilhelmus F | Water-soluble, low substitution hydroxyethylcellulose, derivatives thereof, process of making, and uses thereof |
| CN104194763A (en) * | 2014-08-04 | 2014-12-10 | 中国石油集团渤海钻探工程有限公司 | Anionic polymer thickening agent and fracturing fluid and preparation methods thereof |
| CN105219372A (en) * | 2015-11-19 | 2016-01-06 | 四川光亚聚合物化工有限公司 | A kind of multi-functional composite fracturing liquid system |
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- 2017-08-25 CN CN201710740698.4A patent/CN107663451A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060199742A1 (en) * | 2005-03-02 | 2006-09-07 | Arisz Petrus Wilhelmus F | Water-soluble, low substitution hydroxyethylcellulose, derivatives thereof, process of making, and uses thereof |
| CN104194763A (en) * | 2014-08-04 | 2014-12-10 | 中国石油集团渤海钻探工程有限公司 | Anionic polymer thickening agent and fracturing fluid and preparation methods thereof |
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Application publication date: 20180206 |