CN109796958A - A kind of slippery water friction reducer and preparation method thereof for fracturing fluid - Google Patents
A kind of slippery water friction reducer and preparation method thereof for fracturing fluid Download PDFInfo
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Abstract
The present invention provides a kind of slippery water friction reducer and preparation method thereof for fracturing fluid, and the slippery water friction reducer for fracturing fluid is composed of the following parts by weight: 42-53 parts of biopolymer, 1-5 parts of organobentonite, 1-5 parts of dispersing agent, 35-60 parts of oily phase.Preparation method includes: to disperse organobentonite, dispersing agent and biopolymer in oily phase and stir, and obtains the slippery water friction reducer for fracturing fluid.The slippery water friction reducer for being used for fracturing fluid has good resistance-reducing performance, and swelling, thickening time are short, and derive from boiomacromolecule and its derivative, can be saccharide compound in natural degradation under reservoir conditions, injure to reservoir without long-term water conservancy diversion.
Description
Technical field
The invention belongs to oil exploitation fracturing fluid technical fields, and in particular to a kind of slippery water drop resistance for fracturing fluid
Agent and preparation method thereof.
Background technique
Shale gas refers to the Unconventional gas preserved in series of rocks based on preservation Yu Yifu organic shale, is continuous life
At biochemical genesis air and heat origin cause of formation gas or both mixing, can be present in intrinsic fracture and hole with free state, to inhale
Attached state is present in kerogen, clay particle surface, and there are also minute quantities to be stored in kerogen and asphalitine with dissolved state, dissociates
Gas ratio is generally 20%~85%.It is often compound using working solutions such as slippery water, linear glue and frozen glue in shale gas exploitation
Pressure break is carried out, complicated seam net is manufactured, is especially the large-scale use of slippery water fracturing fluid, complicated seam can be manufactured in reservoir
Net, the micropore larynx in effective communication matrix, to discharge oil-production capacity therein.In order to guarantee the shape of complicated seam net in reservoir
At, it needs to be added friction reducer into slippery water fracturing fluid, reduces and pump frictional resistance, raising injection discharge capacity.
Currently, the friction reducer of the used slippery water in scene is mostly polyacrylamide and its derivative, possess good drop resistance
Performance is prepared as w/o emulsion-type toward contact, improves its instant effect to meet the needs of live extensive operation, real
The technical need of now continuous online mixed operation.The use of polyacrylamide friction reducer, although obtaining preferable exploitation effect
Fruit, however, polyacrylamide macromolecular is often on porous media surface, especially cheese while forming complicated seam net
Root, clay mineral surface are largely adsorbed, and serious reservoir pollution is caused, and reduce matrix and seam net system permeability and long-term
Flow conductivity causes adverse effect to the exploitation of shale gas, tight gas.
Summary of the invention
The slippery water friction reducer and preparation method thereof that the technical problem to be solved by the present invention is to provide a kind of for fracturing fluid, tool
There is good resistance-reducing performance, swelling, thickening time are short, and derive from boiomacromolecule and its derivative, can be in reservoir conditions
Lower natural degradation is saccharide compound, is injured to reservoir without long-term water conservancy diversion.
To solve the above-mentioned problems, the present invention provides a kind of slippery water friction reducer for fracturing fluid, by following parts by weight
Several groups are grouped as:
42-53 parts of biopolymer, 1-5 parts of organobentonite, 1-5 parts of dispersing agent, 35-60 parts of oily phase.
Wherein, biopolymer refers to from extracting in biomaterial (such as plant, animal material), degradable hydrocarbonization
Close object high molecular polymer, such as polysaccharide of various biological sources, natural plant, cellulose etc..Biopolymer has very high
Molecular weight, fracturing fluid system can be made to thicken, make friction reducer resistance-reducing performance improve, reduce pumping frictional resistance, improve injection discharge capacity；This
Outside, the quasi polymer can natural degradation, by the friction reducer be applied to fracturing fluid, under reservoir conditions can natural degradation be carbohydrate
Object is closed, reservoir is injured without long-term water conservancy diversion, the production capacity of unconventional oil and gas can be effectively improved.Organobentonite is using cation form
Face activating agent carries out the product of surface modification treatment to montmorillonite, is used as thixotropy regulator.Oil mutually refers to dispersible said components
Organic dispersion medium.
In technical solution, it is preferred that the slippery water friction reducer for being used for fracturing fluid is composed of the following parts by weight:
45-50 parts of biopolymer, 1-3 parts of organobentonite, 1-3 parts of dispersing agent, 40-55 parts of oily phase.
In technical solution, it is preferred that biopolymer is one of natural plant gum, cellulose derivative, starch derivatives
Or it is a variety of.Wherein, natural plant gum includes but is not limited to guar gum, fenugreek gum, sesbania gum, konjac glucomannan, flax gum, cellulose derivative
Including but not limited to hydroxyethyl cellulose, starch derivatives include but is not limited to carboxymethyl starch.
In technical solution, it is preferred that natural plant gum is one of guar gum, fenugreek gum, sesbania gum, konjac glucomannan or a variety of.
Wherein, guar gum is also known as guanidine glue, guar gum, fenugreek gum, sesbania gum and konjac glucomannan be respectively from cyamopsis tetragonolobus, tonka-bean,
The natural plant extracted in the endosperm of sesbania and konjaku.
In technical solution, it is preferred that biopolymer is the mixing of guar gum, hydroxyethyl cellulose and carboxymethyl starch
Object.When biopolymer selects the mixture of guar gum, hydroxyethyl cellulose and carboxymethyl starch in friction reducer, viscosity is more
Height reduces the flow resistance of turbulent condition fracturing liquid, reduces pumping frictional resistance, improves injection discharge capacity.It is further preferred that raw
Object polymer is the obtained mixture that guar gum, hydroxyethyl cellulose and carboxymethyl starch are mixed with the mass ratio of 5:4:1.
Wherein, dispersing agent can promote biopolymer and organobentonite is uniformly dispersed in oily phase, be formed stable
Emulsion dispersion system, dispersate is uniformly dispersed in emulsion dispersion system, and each regional concentration is consistent in dispersing agent.In technical solution,
Preferably, dispersing agent is polyoxyethylene groups alkyl aryl ether, polyoxyethylene alkylether, alkylbenzene sulfonate, alkyl naphthalene sulfonic acid
One of salt is a variety of.
Polyoxyethylene groups alkyl aryl ether can be nonylphenol polyoxyethylene ether；Polyoxyethylene alkylether can be laurel
Alcohol polyoxyethylene ether；Alkylbenzene sulfonate can be neopelex, sodium xylene sulfonate.
In technical solution, it is preferred that oil is mutually one of white oil, diesel oil, kerosene, toluene, dimethylbenzene or a variety of.Its
In, white oil is also known as paraffin oil, white oil, mineral oil.
It is a further object of the present invention to provide the methods for preparing the above-mentioned slippery water friction reducer for fracturing fluid, comprising: will
Organobentonite, dispersing agent and biopolymer are scattered in oily phase and stir, and obtain the slippery water friction reducer for fracturing fluid.
In technical solution, it is preferred that the preparation method for being used for the slippery water friction reducer of fracturing fluid specifically includes:
S1. it by selected amount is dispersed organobentonite in oily phase and is stirred, obtain organobentonite dispersion liquid；
S2. dispersing agent is added in the organobentonite dispersion liquid that step S1 is obtained and is stirred by selected amount, obtained organic
Bentonite disperses agent dispersing liquid；
S3. the obtained organobentonite of biopolymer addition step S2 is dispersed in agent dispersing liquid and is stirred by selected amount
It mixes, obtains the slippery water friction reducer for fracturing fluid.
Compared with the prior art, the present invention has the following beneficial effects: this be used for fracturing fluid slippery water friction reducer and its
Preparation method:
1. there is good resistance-reducing performance, the purpose that can satisfy and reduce pumping frictional resistance, improve injection discharge capacity；
2. the friction reducer is stable dispersion emulsion system, swelling, thickening time are less than 30s, and swelling, thickening time are short,
Meet the technology needs of the continuous mixture in scene；
It can be carbohydrate in natural degradation under reservoir conditions 3. the friction reducer derives from boiomacromolecule and its derivative
Object is closed, reservoir is injured without long-term water conservancy diversion, to effectively improve the production capacity of unconventional oil and gas；
4. the preparation method of the friction reducer is simple, easy to operate, prepare raw materials used cheap and easy to get.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
Embodiment one
Slippery water friction reducer described in the present embodiment for fracturing fluid is composed of the following parts by weight:
50 parts of guar gum；3 parts of organobentonite；2.5 parts of nonylphenol polyoxyethylene ether and 44.5 parts of white oil.
Wherein guar gum, organobentonite, nonylphenol polyoxyethylene ether and white oil are commercial product.
Preparation method described in the present embodiment for the slippery water friction reducer of fracturing fluid specifically:
1. organobentonite is added into white oil, high-speed stirred 30min obtains organobentonite dispersion liquid；
2. nonylphenol polyoxyethylene ether is added into organobentonite dispersion liquid, 5min is stirred, obtains organobentonite point
Powder dispersion liquid；
3. guar gum is added into organobentonite dispersion agent dispersing liquid, 25min is stirred, is obtained for the smooth of fracturing fluid
Water friction reducer, transfers them in container.
The layering test of slippery water friction reducer
The obtained slippery water friction reducer for being used for fracturing fluid is stood 6 months, observes delamination, and record layer height
The ratio for accounting for entire liquid phase height, is denoted as stratified proportional, which is 2%,
The friction reducer forms stable dispersion emulsion system.
Slippery water friction reducer plays viscous time test
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.In Wu Yin blender
The above-mentioned slippery water friction reducer of 0.75mL is added in middle addition 500mL water thereto under the stirring rate of 6000rpm, stirring
1min takes out, and the time needed for reaching the viscosity number of 2h viscosity 90% with six fast rotational viscometer records at room temperature, has been denoted as viscous
Time.The slippery water friction reducer that the present embodiment is prepared plays viscous time < 10s, when showing that the friction reducer of the present embodiment plays viscous
Between it is short, meet the technology needs of the continuous mixture in scene.
The resistance-reducing yield of slippery water friction reducer is tested
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.Measuring its dosage is
Resistance-reducing yield when 0.10% and 0.15%, using water as blank control, resistance-reducing yield instrument uses 10mm caliber, pump displacement 10L/
Min records stable pumping pressure, and calculates resistance-reducing yield.The slippery water friction reducer dosage that the present embodiment is prepared is
Resistance-reducing yield when 0.10% is 71%, and resistance-reducing yield when dosage is 0.15% is 75%.What the present embodiment was prepared is used to press
The slippery water friction reducer for splitting liquid possesses good resistance-reducing performance, the purpose that can satisfy and reduce pumping frictional resistance, improve injection discharge capacity.
Embodiment two
Slippery water friction reducer described in the present embodiment for fracturing fluid is composed of the following parts by weight:
50 parts of fenugreek gum；3 parts of organobentonite；2 parts of ethoxylated dodecyl alcohol and 45 parts of diesel oil.
Wherein fenugreek gum, organobentonite, ethoxylated dodecyl alcohol and diesel oil are commercial product.
Preparation method described in the present embodiment for the slippery water friction reducer of fracturing fluid specifically:
1. organobentonite is added into diesel oil, high-speed stirred 30min obtains organobentonite dispersion liquid；
2. ethoxylated dodecyl alcohol is added into organobentonite dispersion liquid, 5min is stirred, obtains organobentonite point
Powder dispersion liquid；
3. fenugreek gum is added into organobentonite dispersion agent dispersing liquid, 25min is stirred, is obtained for the smooth of fracturing fluid
Water friction reducer, transfers them in container.
The obtained slippery water friction reducer for being used for fracturing fluid is stood 6 months by slippery water friction reducer layering test, observation point
Layer situation, and the ratio that layer height accounts for entire liquid phase height is recorded, it is denoted as stratified proportional, this is used for the slippery water drop of fracturing fluid
The stratified proportional of resist is 4.5%, which forms stable dispersion emulsion system.
Slippery water friction reducer plays viscous time test
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.In Wu Yin blender
The above-mentioned slippery water friction reducer of 0.75mL is added in middle addition 500mL water thereto under the stirring rate of 6000rpm, stirring
1min takes out, and the time needed for reaching the viscosity number of 2h viscosity 90% with six fast rotational viscometer records at room temperature, has been denoted as viscous
Time.The slippery water friction reducer that the present embodiment is prepared plays viscous time < 10s, when showing that the friction reducer of the present embodiment plays viscous
Between it is short, meet the technology needs of the continuous mixture in scene.
The resistance-reducing yield of slippery water friction reducer is tested
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.Measuring its dosage is
Resistance-reducing yield when 0.10% and 0.15%, using water as blank control, resistance-reducing yield instrument uses 10mm caliber, pump displacement 10L/
Min records stable pumping pressure, and calculates resistance-reducing yield.The slippery water friction reducer dosage that the present embodiment is prepared is
Resistance-reducing yield when 0.10% is 70%, and resistance-reducing yield when dosage is 0.15% is 72%.What the present embodiment was prepared is used to press
The slippery water friction reducer for splitting liquid possesses good resistance-reducing performance, the purpose that can satisfy and reduce pumping frictional resistance, improve injection discharge capacity.
Embodiment three
Slippery water friction reducer described in the present embodiment for fracturing fluid is composed of the following parts by weight:
48 parts of sesbania gum；2 parts of organobentonite；3 parts of neopelex and 47 parts of kerosene.
Wherein sesbania gum, organobentonite, neopelex and kerosene are commercial product.
Preparation method described in the present embodiment for the slippery water friction reducer of fracturing fluid specifically:
1. organobentonite is added into kerosene, high-speed stirred 30min obtains organobentonite dispersion liquid；
2. neopelex is added into organobentonite dispersion liquid, 5min is stirred, obtains organobentonite point
Powder dispersion liquid；
3. sesbania gum is added into organobentonite dispersion agent dispersing liquid, 25min is stirred, is obtained for the smooth of fracturing fluid
Water friction reducer, transfers them in container.
The obtained slippery water friction reducer for being used for fracturing fluid is stood 6 months by slippery water friction reducer layering test, observation point
Layer situation, and the ratio that layer height accounts for entire liquid phase height is recorded, it is denoted as stratified proportional, this is used for the slippery water drop of fracturing fluid
The stratified proportional of resist is 12%, which forms stable dispersion emulsion system.
Slippery water friction reducer plays viscous time test
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.In Wu Yin blender
The above-mentioned slippery water friction reducer of 0.75mL is added in middle addition 500mL water thereto under the stirring rate of 6000rpm, stirring
1min takes out, and the time needed for reaching the viscosity number of 2h viscosity 90% with six fast rotational viscometer records at room temperature, has been denoted as viscous
Time.The slippery water friction reducer that the present embodiment is prepared plays viscous time < 10s, when showing that the friction reducer of the present embodiment plays viscous
Between it is short, meet the technology needs of the continuous mixture in scene.
The resistance-reducing yield of slippery water friction reducer is tested
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.Measuring its dosage is
Resistance-reducing yield when 0.10% and 0.15%, using water as blank control, resistance-reducing yield instrument uses 10mm caliber, pump displacement 10L/
Min records stable pumping pressure, and calculates resistance-reducing yield.The slippery water friction reducer dosage that the present embodiment is prepared is
Resistance-reducing yield when 0.10% is 73%, and resistance-reducing yield when dosage is 0.15% is 75%.What the present embodiment was prepared is used to press
The slippery water friction reducer for splitting liquid possesses good resistance-reducing performance, the purpose that can satisfy and reduce pumping frictional resistance, improve injection discharge capacity.
Example IV
Slippery water friction reducer described in the present embodiment for fracturing fluid is composed of the following parts by weight:
30 parts of hydroxyethyl cellulose；15 parts of carboxymethyl starch；1 part of organobentonite；1 part of xylene monosulfonic acid
Sodium, 23 parts of toluene and 30 parts of dimethylbenzene.
Preparation method described in the present embodiment for the slippery water friction reducer of fracturing fluid specifically:
1. high-speed stirred 30min obtains organic swelling to organobentonite is added in the miscella phase of toluene and dimethylbenzene
Native dispersion liquid；
2. sodium xylene sulfonate is added into organobentonite dispersion liquid, 5min is stirred, organobentonite dispersing agent is obtained
Dispersion liquid；
3. hydroxyethyl cellulose and carboxymethyl starch is added into organobentonite dispersion agent dispersing liquid, 25min is stirred, is obtained
To the slippery water friction reducer for fracturing fluid, transfer them in container.
The layering test of slippery water friction reducer
The obtained slippery water friction reducer for being used for fracturing fluid is stood 6 months, observes delamination, and record layer height
The ratio for accounting for entire liquid phase height, is denoted as stratified proportional, which is 15%,
The friction reducer forms stable dispersion emulsion system.
Slippery water friction reducer plays viscous time test
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.In Wu Yin blender
The above-mentioned slippery water friction reducer of 0.75mL is added in middle addition 500mL water thereto under the stirring rate of 6000rpm, stirring
1min takes out, and the time needed for reaching the viscosity number of 2h viscosity 90% with six fast rotational viscometer records at room temperature, has been denoted as viscous
Time.The slippery water friction reducer that the present embodiment is prepared plays viscous time < 10s, when showing that the friction reducer of the present embodiment plays viscous
Between it is short, meet the technology needs of the continuous mixture in scene.
The resistance-reducing yield of slippery water friction reducer is tested
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.Measuring its dosage is
Resistance-reducing yield when 0.10% and 0.15%, using water as blank control, resistance-reducing yield instrument uses 10mm caliber, pump displacement 10L/
Min records stable pumping pressure, and calculates resistance-reducing yield.The slippery water friction reducer dosage that the present embodiment is prepared is
Resistance-reducing yield when 0.10% is 65%, and resistance-reducing yield when dosage is 0.15% is 68%.What the present embodiment was prepared is used to press
The slippery water friction reducer for splitting liquid possesses good resistance-reducing performance, the purpose that can satisfy and reduce pumping frictional resistance, improve injection discharge capacity.
Embodiment five
Slippery water friction reducer described in the present embodiment for fracturing fluid is composed of the following parts by weight:
25 parts of guar gums；20 parts of hydroxyethyl celluloses；5 parts of carboxymethyl starch；3 parts of organobentonite；2.5 parts of nonyl
Phenol polyethenoxy ether and 44.5 parts of white oil.
Preparation method described in the present embodiment for the slippery water friction reducer of fracturing fluid specifically:
1. organobentonite is added into white oil, high-speed stirred 30min obtains organobentonite dispersion liquid；
2. nonylphenol polyoxyethylene ether is added into organobentonite dispersion liquid, 5min is stirred, obtains organobentonite point
Powder dispersion liquid；
3. guar gum is added into organobentonite dispersion agent dispersing liquid, 25min is stirred, is obtained for the smooth of fracturing fluid
Water friction reducer, transfers them in container.
The layering test of slippery water friction reducer
The obtained slippery water friction reducer for being used for fracturing fluid is stood 6 months, observes delamination, and record layer height
The ratio for accounting for entire liquid phase height, is denoted as stratified proportional, which is 2%,
The friction reducer forms stable dispersion emulsion system.
Slippery water friction reducer plays viscous time test
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.In Wu Yin blender
The above-mentioned slippery water friction reducer of 0.75mL is added in middle addition 500mL water thereto under the stirring rate of 6000rpm, stirring
1min takes out, and the time needed for reaching the viscosity number of 2h viscosity 90% with six fast rotational viscometer records at room temperature, has been denoted as viscous
Time.The slippery water friction reducer that the present embodiment is prepared plays viscous time < 10s, when showing that the friction reducer of the present embodiment plays viscous
Between it is short, meet the technology needs of the continuous mixture in scene.
The resistance-reducing yield of slippery water friction reducer is tested
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.Measuring its dosage is
Resistance-reducing yield when 0.10% and 0.15%, using water as blank control, resistance-reducing yield instrument uses 10mm caliber, pump displacement 10L/
Min records stable pumping pressure, and calculates resistance-reducing yield.The slippery water friction reducer dosage that the present embodiment is prepared is
Resistance-reducing yield when 0.10% is 76%, and resistance-reducing yield when dosage is 0.15% is 81%.What the present embodiment was prepared is used to press
The slippery water friction reducer for splitting liquid possesses good resistance-reducing performance, the purpose that can satisfy and reduce pumping frictional resistance, improve injection discharge capacity.
Embodiment six
Slippery water friction reducer described in the present embodiment for fracturing fluid is composed of the following parts by weight:
20 parts of guar gums；20 parts of hydroxyethyl celluloses；10 parts of carboxymethyl starch；3 parts of organobentonite；2.5 parts of nonyl
Base phenol polyethenoxy ether and 44.5 parts of white oil.
Preparation method described in the present embodiment for the slippery water friction reducer of fracturing fluid specifically:
1. organobentonite is added into white oil, high-speed stirred 30min obtains organobentonite dispersion liquid；
2. nonylphenol polyoxyethylene ether is added into organobentonite dispersion liquid, 5min is stirred, obtains organobentonite point
Powder dispersion liquid；
3. guar gum is added into organobentonite dispersion agent dispersing liquid, 25min is stirred, is obtained for the smooth of fracturing fluid
Water friction reducer, transfers them in container.
The layering test of slippery water friction reducer
The obtained slippery water friction reducer for being used for fracturing fluid is stood 6 months, observes delamination, and record layer height
The ratio for accounting for entire liquid phase height, is denoted as stratified proportional, which is 2%,
The friction reducer forms stable dispersion emulsion system.
Slippery water friction reducer plays viscous time test
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.In Wu Yin blender
The above-mentioned slippery water friction reducer of 0.75mL is added in middle addition 500mL water thereto under the stirring rate of 6000rpm, stirring
1min takes out, and the time needed for reaching the viscosity number of 2h viscosity 90% with six fast rotational viscometer records at room temperature, has been denoted as viscous
Time.The slippery water friction reducer that the present embodiment is prepared plays viscous time < 10s, when showing that the friction reducer of the present embodiment plays viscous
Between it is short, meet the technology needs of the continuous mixture in scene.
The resistance-reducing yield of slippery water friction reducer is tested
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.Measuring its dosage is
Resistance-reducing yield when 0.10% and 0.15%, using water as blank control, resistance-reducing yield instrument uses 10mm caliber, pump displacement 10L/
Min records stable pumping pressure, and calculates resistance-reducing yield.The slippery water friction reducer dosage that the present embodiment is prepared is
Resistance-reducing yield when 0.10% is 74%, and resistance-reducing yield when dosage is 0.15% is 79%.What the present embodiment was prepared is used to press
The slippery water friction reducer for splitting liquid possesses good resistance-reducing performance, the purpose that can satisfy and reduce pumping frictional resistance, improve injection discharge capacity.
Embodiment seven
Slippery water friction reducer described in the present embodiment for fracturing fluid is composed of the following parts by weight:
30 parts of guar gums；15 parts of hydroxyethyl celluloses；5 parts of carboxymethyl starch；3 parts of organobentonite；2.5 parts of nonyl
Phenol polyethenoxy ether and 44.5 parts of white oil.
Preparation method described in the present embodiment for the slippery water friction reducer of fracturing fluid specifically:
1. organobentonite is added into white oil, high-speed stirred 30min obtains organobentonite dispersion liquid；
2. nonylphenol polyoxyethylene ether is added into organobentonite dispersion liquid, 5min is stirred, obtains organobentonite point
Powder dispersion liquid；
3. guar gum is added into organobentonite dispersion agent dispersing liquid, 25min is stirred, is obtained for the smooth of fracturing fluid
Water friction reducer, transfers them in container.
The layering test of slippery water friction reducer
The obtained slippery water friction reducer for being used for fracturing fluid is stood 6 months, observes delamination, and record layer height
The ratio for accounting for entire liquid phase height, is denoted as stratified proportional, which is 2%,
The friction reducer forms stable dispersion emulsion system.
Slippery water friction reducer plays viscous time test
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.In Wu Yin blender
The above-mentioned slippery water friction reducer of 0.75mL is added in middle addition 500mL water thereto under the stirring rate of 6000rpm, stirring
1min takes out, and the time needed for reaching the viscosity number of 2h viscosity 90% with six fast rotational viscometer records at room temperature, has been denoted as viscous
Time.The slippery water friction reducer that the present embodiment is prepared plays viscous time < 10s, when showing that the friction reducer of the present embodiment plays viscous
Between it is short, meet the technology needs of the continuous mixture in scene.
The resistance-reducing yield of slippery water friction reducer is tested
The slippery water friction reducer sample for taking the present embodiment to be prepared, high-speed stirred are spare to uniform.Measuring its dosage is
Resistance-reducing yield when 0.10% and 0.15%, using water as blank control, resistance-reducing yield instrument uses 10mm caliber, pump displacement 10L/
Min records stable pumping pressure, and calculates resistance-reducing yield.The slippery water friction reducer dosage that the present embodiment is prepared is
Resistance-reducing yield when 0.10% is 74%, and resistance-reducing yield when dosage is 0.15% is 78%.What the present embodiment was prepared is used to press
The slippery water friction reducer for splitting liquid possesses good resistance-reducing performance, the purpose that can satisfy and reduce pumping frictional resistance, improve injection discharge capacity.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of slippery water friction reducer for fracturing fluid, which is characterized in that be composed of the following parts by weight:
42-53 parts of biopolymer, 1-5 parts of organobentonite, 1-5 parts of dispersing agent, 35-60 parts of oily phase.
2. the slippery water friction reducer according to claim 1 for fracturing fluid, which is characterized in that by following parts by weight
Group is grouped as:
45-50 parts of biopolymer, 1-3 parts of organobentonite, 1-3 parts of dispersing agent, 40-55 parts of oily phase.
3. the slippery water friction reducer according to claim 1 for fracturing fluid, it is characterised in that: the biopolymer is
One of natural plant gum, cellulose derivative, starch derivatives are a variety of.
4. the slippery water friction reducer according to claim 3 for fracturing fluid, it is characterised in that: the natural plant gum is Guar
One of glue, fenugreek gum, sesbania gum, konjac glucomannan are a variety of.
5. the slippery water friction reducer according to claim 4 for fracturing fluid, it is characterised in that: the biopolymer is
The mixture of guar gum, hydroxyethyl cellulose and carboxymethyl starch.
6. the slippery water friction reducer according to claim 5 for fracturing fluid, it is characterised in that: the biopolymer is
The obtained mixture that guar gum, hydroxyethyl cellulose and carboxymethyl starch are mixed with the mass ratio of 5:4:1.
7. the slippery water friction reducer according to claim 1 for fracturing fluid, it is characterised in that: the dispersing agent is polyoxy
One of vinyl alkyl aryl ether, polyoxyethylene alkylether, alkylbenzene sulfonate, alkylnaphthalene sulfonate are a variety of.
8. the slippery water friction reducer according to claim 1 for fracturing fluid, it is characterised in that: it is described oil mutually be white oil,
One of diesel oil, kerosene, toluene, dimethylbenzene are a variety of.
9. the method for preparing any slippery water friction reducer for fracturing fluid of claim 1-8, which is characterized in that packet
It includes: dispersing the organobentonite, the dispersing agent and the biopolymer in the oily phase and stir, obtain described
Slippery water friction reducer for fracturing fluid.
10. the method for slippery water friction reducer of the preparation according to claim 9 for fracturing fluid, which is characterized in that specific
Include:
S1. it by selected amount is dispersed the organobentonite in the oily phase and is stirred, obtain organobentonite dispersion liquid；
S2. the dispersing agent is added in the organobentonite dispersion liquid that step S1 is obtained and is stirred by selected amount, obtained
Organobentonite disperses agent dispersing liquid；
S3. the obtained organobentonite of biopolymer addition step S2 is dispersed in agent dispersing liquid simultaneously by selected amount
Stirring obtains the slippery water friction reducer for being used for fracturing fluid.
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