CN102093873A - Artificially synthesized polymer fracturing fluid with molecular weight of 500,000 to 10,000,000 - Google Patents
Artificially synthesized polymer fracturing fluid with molecular weight of 500,000 to 10,000,000 Download PDFInfo
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- CN102093873A CN102093873A CN2010105752054A CN201010575205A CN102093873A CN 102093873 A CN102093873 A CN 102093873A CN 2010105752054 A CN2010105752054 A CN 2010105752054A CN 201010575205 A CN201010575205 A CN 201010575205A CN 102093873 A CN102093873 A CN 102093873A
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Abstract
The invention belongs to an artificially synthesized polymer fracturing fluid for fracturing production and injection increase of oil fields, and particularly relates to an artificially synthesized polymer fracturing fluid with the molecular weight of between 500,000 and 10,000,000 which has good temperature resistance, salt resistance and shearing resistance and avoids macromolecular chain group residue. The artificially synthesized polymer fracturing fluid is prepared from the following raw materials in part by weight: 0.1 to 1 part of synthetic polymer, 0.1 to 1 part of crosslinking agent, 0.2 to 1 part of clay stabilizer, 0.1 to 0.8 part of surfactant, 0.001 to 0.05 part of oxidant, and 94 to 99 parts of water. The artificially synthesized polymer fracturing fluid has the advantages of having good temperature resistance, salt resistance and shearing resistance and avoiding the macromolecular chain group residue.
Description
Technical field
The invention belongs to artificial-synthetic copolymer's fracturing liquid that the oil field compression fracture increasing yield and injection is used, be specifically related to a kind of temperature resistance, anti-salt and shear resistant are good, stop the sub-very much weight polymers fracturing liquid of synthetic 500,000-1000 of macromolecular chain group residue.
Background technology
In oil and gas exploration and exploitation, waterpower sandfrac renovation technique at reservoir is: utilize the ground high-pressure pump that liquid is injected well with the discharge capacity that substantially exceeds the formation absorption ability, suppressed high pressure in the shaft bottom, this high pressure forms the crack after surpassing the tensile strength of near reservoir stress of the borehole wall and rock on the stratum.The fracturing liquid that continuation will have propping agent injects the crack, is that extend forward in the crack, and in the crack filling propping agent.After the termination of pumping, in the stratum, form the filling crack of sufficient length, width and height.Fill the crack and have very high perviousness, therefore improved the hydrocarbon zone rate of permeation.The sandfrac stimulation technology is an important technology finding hydrocarbon zone, promote Reserves Evaluation grade and raising oil gas well single well productivity.And the quality of fracturing liquid performance is the important factor that influences fracturing effect.
Pressure break has been developed rapidly and widespread use as the major measure of oil reservoir increasing yield and injection.Fracturing liquid is the important component part of fracturing technique, is decision pressure break key of success.Fracturing liquid is divided into again according to the difference of using the viscosifying agent composition: natural phant fracturing fluid, synthetic polymer fracturing liquid and tensio-active agent fracturing liquid.The natural phant fracturing fluid can only form " short and thick " high crack because the intrinsic viscosity of himself is higher and the boron of use alkalescence is linking agent, has limited the extension of seam length to the deep; The cross-linking system of alkalescence also is a very big injury to the quick stratum of the high alkali of clay content, also exists water insoluble matter content height, residue many to packing layer flow conductivity and the big defective of formation damage simultaneously; The synthetic polymer fracturing liquid lives forever in the defective of anti-shearing anti-salt property difference owing to the excessive link of molecular weight; The tensio-active agent fracturing liquid is because himself special one-tenth glue characteristic makes it have the defective of heat-resisting property difference.
Summary of the invention
The objective of the invention is to overcome defective of the prior art and a kind of temperature resistance is provided, anti-salt and shear resistant are good, stop the sub-very much weight polymers fracturing liquid of synthetic 500,000-1000 of macromolecular chain group residue.
The object of the present invention is achieved like this: formulated according to parts by weight by following raw material: synthetic polymer: 0.1-1 part, linking agent: 0.1-1 part, clay stabilizer: 0.2-1 part, tensio-active agent: 0.1-0.8 part, oxygenant: 0.001-0.05 part and water: 94-99 part.Described synthetic polymer is selected from the acrylamido monomer, the homopolymer of vinyl monomer and hydrophobic monomer and their multipolymer; The molecular weight of described synthetic polymer is between 500,000-1,000 ten thousand.Described linking agent is selected from the organic amphiprotic metal crosslinking agent and aldehyde is linking agent and their mixtures.The described organic amphiprotic metal crosslinking agent that is selected from is by chromium, zirconium, titanium, iron and aluminium and their mixture and delayer, the composite composition of pH value conditioning agent and complexing agent; Described delayer is selected from polyvalent alcohol, polyprotonic acid, polyaldehyde, poly-hydroxy aldehydic acid and alkanolamine and their mixtures; Described pH regulator agent is selected from one of acid or alkali; Described complexing agent is selected from polyvalent alcohol, polyprotonic acid, polyaldehyde, poly-hydroxy aldehydic acid and alkanolamine and their mixtures.Described clay stabilizer is selected from NH
4Cl, KCl, KBr, NaCl, NaBr and tetramethyl ammonium chloride and their mixture are formed.Described tensio-active agent is fluorocarbon surfactant and polyether surfactant and their compounds.Described oxygenant is selected from persulphate, oxymuriate, iodate, perchlorate, periodate, permanganate and manganate and their mixtures.
The name that the present invention and Kunshan Beijing-Kunming oilfield chemistry scientific and technological development company produce is called: hydroxypropylguar gum compares: the compound method that the present invention uses is as follows: mix at the Wu Yin that fills 493ml water and transfer in the device, add the SP169 of KCl, the 1.0g of 4.0g, 0.005 ammonium persulphate, under high-speed stirring, it is dissolved fully, and then slowly add the synthetic polymer of 2.0g, after stirring and dissolving 30min reaches certain viscosity, leave standstill 30min, then under agitation, the linking agent that adds 2.0g, after mixing 2min, standby.The of the fracturing fluid compound method of hydroxypropylguar gum is as follows: mix at the Wu Yin that fills 487ml water and transfer in the device, add the cleanup additive of KCl, the 1.0g of 4.0g, the sterilant of 1.0g, the ammonium persulphate of 0.005g, under high-speed stirring, it is dissolved fully, and then slowly add the hydroxypropylguar gum of 2.0g, after stirring and dissolving 30min reaches certain viscosity, 10% sodium hydroxide solution that adds 5.0g again, stir, 30 ℃ of following constant temperature leave standstill 2h, then under agitation, the organic borate cross-linker that adds 1.0g, mix 2min after, standby.
According to SY/T5107-2005 aqueous fracturing fluid method of evaluating performance, it is as follows that it is carried out performance comparison shop experiment data:
The present invention has good temperature resistance, the performance of anti-salt and shear resistant, and stopped the advantage that macromolecular chain is rolled into a ball residue.
Embodiment
The present invention is formulated according to parts by weight by following raw material: synthetic polymer: 0.1-1 part, linking agent: 0.1-1 part, clay stabilizer: 0.2-1 part, tensio-active agent: 0.1-0.8 part, oxygenant: 0.001-0.05 part and water: 94-99 part.Described synthetic polymer is selected from the acrylamido monomer, the homopolymer of vinyl monomer and hydrophobic monomer and their multipolymer; The molecular weight of described synthetic polymer is between 500,000-1,000 ten thousand.Described linking agent is selected from the organic amphiprotic metal crosslinking agent and aldehyde is linking agent and their mixtures.The described organic amphiprotic metal crosslinking agent that is selected from is by chromium, zirconium, titanium, iron and aluminium and their mixture and delayer, the composite composition of pH value conditioning agent and complexing agent; Described delayer is selected from polyvalent alcohol, polyprotonic acid, polyaldehyde, poly-hydroxy aldehydic acid and alkanolamine and their mixtures; Described pH regulator agent is selected from one of acid or alkali; Described complexing agent is selected from polyvalent alcohol, polyprotonic acid, polyaldehyde, poly-hydroxy aldehydic acid and alkanolamine and their mixtures.Described clay stabilizer is selected from NH
4Cl, KCl, KBr, NaCl, NaBr and tetramethyl ammonium chloride and their mixture are formed.Described tensio-active agent is fluorocarbon surfactant and polyether surfactant and their compounds.Described oxygenant is selected from persulphate, oxymuriate, iodate, perchlorate, periodate, permanganate and manganate and their mixtures.
Embodiment 1, need to make volume of the present invention be 150m
3:
Synthetic polymer: 675 kilograms, linking agent: 375 kilograms, 825 kilograms of clay stabilizers, tensio-active agent: 450 kilograms, oxygenant: 7.5 kilograms and water: 148270 kilograms.
Synthetic polymer is in the above-mentioned prescription: the multipolymer of acrylamido monomer and vinyl monomer, molecular weight are 5,000,000; Linking agent is: organic chromium and formaldehyde mixture (organic chromium is the compound of chromic salt, ethylene glycol, acetic acid and lactic acid); Clay stabilizer is: KCl; Tensio-active agent is: 0-20 and fluorine carbon; Oxygenant is: ammonium persulphate.
Embodiment 2, need to make volume of the present invention be 100m
3:
97570 kilograms in water, 1000 kilograms of synthetic polymers, 800 kilograms of linking agents, 1000 kilograms of clay stabilizers, 400 kilograms in tensio-active agent, 30 kilograms in oxygenant.
Synthetic polymer is in the above-mentioned prescription: the monomeric homopolymer of acrylamido, molecular weight are 500,000; Linking agent is: organic chromium and organoaluminum mixture; Clay stabilizer is: NH4Cl; Tensio-active agent is: OP-10; Oxygenant is: Periodic acid.In the described linking agent organoaluminum mixture be chromic salts, aluminium salt, glycerol, citric acid and oxalic dialdehyde compound.
Embodiment 3, need to make volume of the present invention be 280m
3:
274120 kilograms in water, 84 kilograms of synthetic polymers, 560 kilograms of linking agents, 2800 kilograms of clay stabilizers, 2240 kilograms in tensio-active agent, 4.2 kilograms in oxygenant.
Synthetic polymer is in the above-mentioned prescription: the multipolymer of acrylamido monomer, vinyl monomer and hydrophobic monomer, molecular weight are 1,000 ten thousand; Linking agent is: formaldehyde, oxalic dialdehyde and phenolic aldehyde mixture; Clay stabilizer is: KBr and tetramethyl ammonium chloride; Tensio-active agent is: NP-100 and fluorine carbon; Oxygenant is: ammonium persulphate.
Embodiment 4, need to make volume of the present invention be 100m
3:
98450 kilograms in water, 550 kilograms of synthetic polymers, 600 kilograms of linking agents, 600 kilograms of clay stabilizers, 400 kilograms in tensio-active agent, 2 kilograms in oxygenant.
Synthetic polymer is in the above-mentioned prescription: the multipolymer of acrylamido monomer, hydrophobic monomer, molecular weight are 6,000,000; Linking agent is: the compound of zirconates, molysite, aluminium salt, polynary aldehydic acid, alkanolamine, sheet alkali and polyvalent alcohol; Clay stabilizer is: the compound of NaCl and KCl; Tensio-active agent is: OP-10 and fluorine carbon; Oxygenant is: iodate.
Embodiment 5, need to make volume of the present invention be 100m
3:
98300 kilograms in water, 700 kilograms of synthetic polymers, 840 kilograms of linking agents, 600 kilograms of clay stabilizers, 400 kilograms in tensio-active agent, 2.5 kilograms in oxygenant.
Synthetic polymer is in the above-mentioned prescription: the multipolymer of acrylamido monomer, vinyl monomer, molecular weight are 4,500,000; Linking agent is: organic titanium and phenolic aldehyde mixture; Clay stabilizer is: NH4Cl; Tensio-active agent is: OP-10; Oxygenant is: permanganate and perchlorate compound.Organic titanium in the described linking agent by titanate, alkanolamine, acid, oxalic dialdehyde, polyvalent alcohol is composite forms.
Embodiment 6, need to make volume of the present invention be 100m
3:
98300 kilograms in water, 700 kilograms of synthetic polymers, 1000 kilograms of linking agents, 600 kilograms of clay stabilizers, 400 kilograms in tensio-active agent, 5 kilograms in oxygenant.
Synthetic polymer is in the above-mentioned prescription: the multipolymer of acrylamido monomer, vinyl monomer and hydrophobic monomer, molecular weight are 3,000,000; Linking agent is: the compound of chromic salts, zirconates, alkanolamine, polyprotonic acid, alkali and polyvalent alcohol; Clay stabilizer is: NH4Cl, NaBr and tetramethyl ammonium chloride compound; Tensio-active agent is: AE1031 and fluorine carbon compound; Oxygenant is: oxymuriate and iodate compound.
Embodiment 7, need to make volume of the present invention be 100m
3:
98800 kilograms in water, 400 kilograms of synthetic polymers, 400 kilograms of linking agents, 500 kilograms of clay stabilizers, 300 kilograms in tensio-active agent, 1.5 kilograms in oxygenant.
Synthetic polymer is in the above-mentioned prescription: the monomeric multipolymer of acrylamido monomer and hydrophobic group, molecular weight are 8,000,000; Linking agent is: organoaluminum and oxalic dialdehyde compound; Clay stabilizer is: NaCl and KCl compound; Tensio-active agent is: OP-10 and fluorine carbon; Oxygenant is: persulphate and manganate.Organoaluminum in the described linking agent forms by aluminium salt, polyprotonic acid, alkanolamine, polyvalent alcohol and alkali are composite.
Claims (7)
1. sub-very much weight polymers fracturing liquid of synthetic 500,000-1000, it is characterized in that: formulated by following raw material: synthetic polymer: 0.1-1 part, linking agent: 0.1-1 part, clay stabilizer: 0.2-1 part, tensio-active agent: 0.1-0.8 part, oxygenant: 0.001-0.05 part and water: 94-99 part according to parts by weight.
2. the sub-very much weight polymers fracturing liquid of synthetic 500,000-1000 according to claim 1, it is characterized in that: described synthetic polymer is selected from the acrylamido monomer, the homopolymer of vinyl monomer and hydrophobic monomer and their multipolymer; The molecular weight of described synthetic polymer is between 500,000-1,000 ten thousand.
3. the sub-very much weight polymers fracturing liquid of synthetic 500,000-1000 according to claim 1 is characterized in that: described linking agent is selected from the organic amphiprotic metal crosslinking agent and aldehyde is linking agent and their mixtures.
4. the sub-very much weight polymers fracturing liquid of synthetic 500,000-1000 according to claim 3, it is characterized in that: the described organic amphiprotic metal crosslinking agent that is selected from is by chromium, zirconium, titanium, iron and aluminium and their mixture and delayer, the composite composition of pH value conditioning agent and complexing agent; Described delayer is selected from polyvalent alcohol, polyprotonic acid, polyaldehyde, poly-hydroxy aldehydic acid and alkanolamine and their mixtures; Described pH regulator agent is selected from one of acid or alkali; Described complexing agent is selected from polyvalent alcohol, polyprotonic acid, polyaldehyde, poly-hydroxy aldehydic acid and alkanolamine and their mixtures.
5. the sub-very much weight polymers fracturing liquid of synthetic 500,000-1000 according to claim 1, it is characterized in that: described clay stabilizer is selected from NH
4Cl, KCl, KBr, NaCl, NaBr and tetramethyl ammonium chloride and their mixture are formed.
6. the sub-very much weight polymers fracturing liquid of synthetic 500,000-1000 according to claim 1 is characterized in that: described tensio-active agent is fluorocarbon surfactant and polyether surfactant and their compounds.
7. the sub-very much weight polymers fracturing liquid of synthetic 500,000-1000 according to claim 1, it is characterized in that: described oxygenant is selected from persulphate, oxymuriate, iodate, perchlorate, periodate, permanganate and manganate and their mixtures.
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| CN2010105752054A CN102093873A (en) | 2010-11-26 | 2010-11-26 | Artificially synthesized polymer fracturing fluid with molecular weight of 500,000 to 10,000,000 |
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| CN2010105752054A CN102093873A (en) | 2010-11-26 | 2010-11-26 | Artificially synthesized polymer fracturing fluid with molecular weight of 500,000 to 10,000,000 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417814A (en) * | 2011-11-16 | 2012-04-18 | 北京国海能源技术研究院 | Seawater-based fracturing fluid and preparation method thereof |
| CN102604625A (en) * | 2012-03-02 | 2012-07-25 | 陕西延长石油(集团)有限责任公司研究院 | Water-based fracturing fluid used for continental face shale gas fracturing and preparation method thereof |
| CN102952535A (en) * | 2011-08-19 | 2013-03-06 | 中国石油天然气股份有限公司 | Self heat-generating and gas-generating clean fracturing fluid |
| CN103396785A (en) * | 2013-07-30 | 2013-11-20 | 宜兴市东明石油化学助剂有限公司 | Anti-swelling and discharge-aiding agent |
| CN103468237A (en) * | 2013-06-13 | 2013-12-25 | 中国石油集团西部钻探工程有限公司 | Clean fracturing fluid and preparation method thereof |
| CN104140805A (en) * | 2013-10-28 | 2014-11-12 | 中国石油化工股份有限公司 | Modified acrylamide polymer fracturing fluid |
| CN104140806A (en) * | 2013-10-29 | 2014-11-12 | 中国石油化工股份有限公司 | Modified acrylamide polymer thickening agent and preparation method thereof |
| CN104745171A (en) * | 2013-12-27 | 2015-07-01 | 中国石油化工股份有限公司 | Compound cross-linking agent for fracturing fluid, preparation method and application thereof |
| WO2016084032A1 (en) * | 2014-11-28 | 2016-06-02 | Ecopetrol S.A. | Formulations of colloidal dispersion gels and surfactants for the improved recovery of petroleum and method of obtaining these formulations |
| CN108456513A (en) * | 2017-02-20 | 2018-08-28 | 中国石油化工股份有限公司 | A kind of fracturing fluid organic aluminum crosslinker, preparation method and application |
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2010
- 2010-11-26 CN CN2010105752054A patent/CN102093873A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952535A (en) * | 2011-08-19 | 2013-03-06 | 中国石油天然气股份有限公司 | Self heat-generating and gas-generating clean fracturing fluid |
| CN102417814B (en) * | 2011-11-16 | 2013-07-10 | 北京国海能源技术研究院 | Seawater-based fracturing fluid and preparation method thereof |
| CN102417814A (en) * | 2011-11-16 | 2012-04-18 | 北京国海能源技术研究院 | Seawater-based fracturing fluid and preparation method thereof |
| CN102604625B (en) * | 2012-03-02 | 2014-06-11 | 陕西延长石油(集团)有限责任公司研究院 | Water-based fracturing fluid used for continental face shale gas fracturing and preparation method thereof |
| CN102604625A (en) * | 2012-03-02 | 2012-07-25 | 陕西延长石油(集团)有限责任公司研究院 | Water-based fracturing fluid used for continental face shale gas fracturing and preparation method thereof |
| CN103468237A (en) * | 2013-06-13 | 2013-12-25 | 中国石油集团西部钻探工程有限公司 | Clean fracturing fluid and preparation method thereof |
| CN103396785A (en) * | 2013-07-30 | 2013-11-20 | 宜兴市东明石油化学助剂有限公司 | Anti-swelling and discharge-aiding agent |
| CN104140805A (en) * | 2013-10-28 | 2014-11-12 | 中国石油化工股份有限公司 | Modified acrylamide polymer fracturing fluid |
| CN104140806A (en) * | 2013-10-29 | 2014-11-12 | 中国石油化工股份有限公司 | Modified acrylamide polymer thickening agent and preparation method thereof |
| CN104745171A (en) * | 2013-12-27 | 2015-07-01 | 中国石油化工股份有限公司 | Compound cross-linking agent for fracturing fluid, preparation method and application thereof |
| CN104745171B (en) * | 2013-12-27 | 2018-05-08 | 中国石油化工股份有限公司 | A kind of fracturing fluid multiple crosslinking agent, preparation method and applications |
| WO2016084032A1 (en) * | 2014-11-28 | 2016-06-02 | Ecopetrol S.A. | Formulations of colloidal dispersion gels and surfactants for the improved recovery of petroleum and method of obtaining these formulations |
| CN108456513A (en) * | 2017-02-20 | 2018-08-28 | 中国石油化工股份有限公司 | A kind of fracturing fluid organic aluminum crosslinker, preparation method and application |
| CN108456513B (en) * | 2017-02-20 | 2021-09-10 | 中国石油化工股份有限公司 | Organic aluminum crosslinking agent for fracturing fluid, preparation method and application |
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Application publication date: 20110615 |