CN115029143A - Surfactant with carbon dioxide stimulation response tackifying characteristic and application of surfactant in fracturing fluid - Google Patents

Surfactant with carbon dioxide stimulation response tackifying characteristic and application of surfactant in fracturing fluid Download PDF

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CN115029143A
CN115029143A CN202210300456.4A CN202210300456A CN115029143A CN 115029143 A CN115029143 A CN 115029143A CN 202210300456 A CN202210300456 A CN 202210300456A CN 115029143 A CN115029143 A CN 115029143A
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surfactant
carbon dioxide
fracturing fluid
viscosity
solution
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CN115029143B (en
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杨小江
黄子高
毛金成
林冲
侯超凡
熊中国
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Sichuan Shengrong Bochuang Energy Technology Co ltd
Southwest Petroleum University
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Sichuan Shengrong Bochuang Energy Technology Co ltd
Southwest Petroleum University
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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
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
    • 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
    • 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
    • C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
    • 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
    • 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
    • C09K8/72—Eroding chemicals, e.g. acids
    • C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
    • 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
    • C09K2208/26—Gel breakers other than bacteria or enzymes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/70—Combining sequestration of CO2 and exploitation of hydrocarbons by injecting CO2 or carbonated water in oil wells

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  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Colloid Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

The invention provides a catalyst containing CO 2 A surfactant with stimulation response and tackifying characteristics, a preparation method thereof and application thereof in fracturing fluid, belonging to the field of oilfield filling and production increasing transformation. The surfactant disclosed by the invention is prepared from diethanolamine, epoxy chloropropane and unsaturated fatty acid acyl propyl dimethyl tertiary amine serving as raw materials, and contains tertiary amine and quaternary ammonium in a structure. The whole preparation of the inventionSimple process, and the obtained surfactant has CO 2 Stimulation response to viscosifying characteristics, and when CO 2 After being displaced, the viscosity can be reduced, smooth flowback is realized, the composite material can be used for hydraulic fracturing of natural gas, coal bed gas and the like, and the surfactant and CO are used 2 The prepared clean fracturing fluid not only has a certain corrosion effect on stratum rocks, but also can replace natural gas.

Description

Surfactant with carbon dioxide stimulation response tackifying characteristic and application of surfactant in fracturing fluid
Technical Field
The invention relates to the technical field of preparation of fracturing fluid thickening agents, wherein the fracturing fluid thickening agent is a viscoelastic surfactant, and further, the viscoelastic surfactant has the characteristic of stimulating response and viscosity increasing by carbon dioxide and is used for hydraulic fracturing of natural gas, coal bed gas and the like; in particular to application of a surfactant with carbon dioxide stimulation response tackifying characteristic in fracturing fluid.
Background
In the fracturing process, the fracturing fluid is used as a carrier for transmitting pressure and conveying propping agent, and the performance of the fracturing fluid influences the effect of the whole fracturing construction. The polymer fracturing fluid system such as boron crosslinked guanidine gum and its derivative fracturing fluid is the most widely used fracturing fluid system at present. However, the field application and research for many years find that the large molecule adsorption blocks a stratum seepage passage, the gel breaking liquid residue blocks a proppant filling layer and the filter cake damage are three main expression forms that the fracturing fluid using the guanidine gum and the derivatives thereof as the thickening agent influences the fracturing transformation efficiency. In recent decades, a great deal of research is carried out on the problems in the aspects, but the problems of macromolecular adsorption blockage, alkaline fluid invasion injury and the like are still not well solved. The clean fracturing fluid system using the viscoelastic surfactant as the thickening agent successfully solves the problems, but the conventional viscoelastic surfactant cannot automatically break gel when fracturing gas wells such as natural gas, coal bed gas and the like. In addition, with the attention and active response of the country to the change of the global ecological environment, a planning target of 'carbon peak reaching and carbon neutralization' is provided, and energy conservation and emission reduction are carried out. Carbon dioxide sequestration and the like are emerging studies.
Thus, the present invention provides a surfactant that is capable of responding to viscosification under carbon dioxide stimulation. Is increasingThe surfactant is used as a thickening agent to prepare the viscoelasticity of the clean fracturing fluid, simultaneously, the carbon dioxide can be consumed, the carbon dioxide can be sealed and stored, the emission is reduced, and the formed clean fracturing fluid is acidic and can erode inorganic plugs in partial stratums. In addition, the response type clean fracturing fluid can replace some CH in the stratum by displacement when being fractured 4 And the viscosity is reduced, gel breaking is realized, and smooth discharge is realized.
Disclosure of Invention
In order to respond to the national planning targets of 'carbon peak reaching and carbon neutralization', the invention provides a preparation method and an application method of a surfactant with carbon dioxide stimulation response tackifying property. The invention can not only improve the viscoelasticity of the surfactant solution, but also consume carbon dioxide, reduce the emission of carbon dioxide and is beneficial to the planning target of carbon peak reaching and carbon neutralization.
The scheme of the surfactant with the carbon dioxide stimulation response tackifying characteristic provided by the invention is as follows:
a surfactant having carbon dioxide stimuli responsive viscosifying properties, having the general structural formula:
Figure BDA0003562680350000021
wherein R is 1 Is unsaturated hydrocarbon chain with 17-21 carbon atoms.
The surfactant provided by the invention has a quaternary amine group and a tertiary amine group in a hydrophilic group, wherein the quaternary amine group enables the prepared surfactant to be quickly dissolved in an aqueous solution, and the tertiary amine group enables the surfactant to respond to thickening under the stimulation of carbon dioxide.
The invention has the following beneficial effects:
the surfactant with the carbon dioxide stimulation response tackifying characteristic can be used for forming the acid fracturing fluid through carbon dioxide tackifying.
The carbon dioxide viscosified fracturing fluid provided by the invention can realize gel breaking through gas displacement, and the problem that the clean fracturing fluid cannot automatically break gel in gas reservoir fracturing is solved.
The acidic fracturing fluid formed by the invention can erode inorganic plugs in partial stratum and improve the permeability of a reservoir matrix.
The carbon dioxide viscosifying fracturing fluid formed by the invention can realize the sequestration of carbon dioxide and relieve the greenhouse effect.
The carbon dioxide in the carbon dioxide viscosified fracturing fluid formed by the method can replace natural gas in a stratum, so that the yield of the natural gas is improved.
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Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
Example 1
When the surfactant having carbon dioxide stimulation responsive viscosifying properties as set forth in claim 1 is used as a viscosifying agent in the preparation of a clean fracturing fluid, the fracturing fluid is mixed with water 100: (3-5) mixing and dissolving, and carrying out a viscosity test on the prepared solution, wherein the test viscosity is less than 5 mPas. The viscosity test comprises the steps of carrying out viscosity test on the solution without carbon dioxide, and introducing carbon dioxide into the prepared solution, wherein the carbon dioxide is introduced for 3 minutes, and the viscosity test result is 30mPa & s.
Example 2
When the surfactant having carbon dioxide stimulation responsive viscosifying properties as set forth in claim 1 is used as a viscosifying agent in the preparation of a clean fracturing fluid, the fracturing fluid is mixed with water 100: (3-5) mixing and dissolving, and performing a viscosity test on the prepared solution, wherein the test viscosity is less than 5 mPas. The viscosity test comprises the steps of carrying out viscosity test on the solution without carbon dioxide, and introducing carbon dioxide into the prepared solution, wherein the carbon dioxide is introduced for 5 minutes, and the viscosity test result is 51mPa & s.
Example 3
When the surfactant having carbon dioxide stimulation response viscosifying characteristics as set forth in claim 1 is used as a viscosifying agent to prepare a clean fracturing fluid, the fracturing fluid is mixed with water 100: (3-5) mixing and dissolving, and carrying out a viscosity test on the prepared solution, wherein the test viscosity is less than 5 mPas. The viscosity test comprises the steps of carrying out viscosity test on the solution without carbon dioxide, and introducing carbon dioxide into the prepared solution, wherein the carbon dioxide is introduced for 8 minutes, and the viscosity test result is 84mPa & s.
Example 4
When the surfactant having carbon dioxide stimulation responsive viscosifying properties as set forth in claim 1 is used as a viscosifying agent in the preparation of a clean fracturing fluid, the fracturing fluid is mixed with water 100: (3-5) mixing and dissolving, alternately introducing carbon dioxide and CH 4 . Wherein the introduction time of the carbon dioxide is 8 minutes, then the viscosity test is carried out, and then CH is introduced into the solution 4 Thereafter, the passage time was 4 minutes, and the solution was subjected to a viscosity test. Introducing carbon dioxide to obtain a solution with viscosity of 84 mPa.s, and introducing CH 4 The zero shear viscosity of the resulting solution was 27 mPas.
Example 5
When the surfactant having carbon dioxide stimulation responsive viscosifying properties as set forth in claim 1 is used as a viscosifying agent in the preparation of a clean fracturing fluid, the fracturing fluid is mixed with water 100: (3-5) mixing and dissolving, alternately introducing carbon dioxide and CH 4 . Wherein the introduction time of the carbon dioxide is 8 minutes, then the viscosity test is carried out, and then CH is introduced into the solution 4 Afterwards, the time period of the introduction was 8 minutes, and the viscosity was measured. Introducing carbon dioxide to the solution with the viscosity of 84 mPas, and introducing CH 4 The zero shear viscosity of the solution is 12 mPas.
Example 6
When the surfactant having carbon dioxide stimulation responsive viscosifying properties as set forth in claim 1 is used as a viscosifying agent in the preparation of a clean fracturing fluid, the fracturing fluid is mixed with water 100: (3-5) ratioMixing and dissolving, alternately introducing carbon dioxide and CH 4 . Wherein the introduction time of the carbon dioxide is 8 minutes, then the viscosity test is carried out, and then CH is introduced into the solution 4 Thereafter, the passage time was 12 minutes, and the solution was subjected to a viscosity test again. Introducing carbon dioxide to obtain solution with viscosity of 84 mPas, and introducing CH 4 The zero shear viscosity of the solution is 3 mPas.
Example 7
When the surfactant having carbon dioxide stimulation responsive viscosifying properties as set forth in claim 1 is used as a viscosifying agent in the preparation of a clean fracturing fluid, the fracturing fluid is mixed with water 100: (3-5) mixing and dissolving, alternately introducing carbon dioxide and N 2 . Wherein the introduction time of the carbon dioxide is 8 minutes, then the viscosity test is carried out, and then CH is introduced into the solution 4 Thereafter, the time period of the passage was 4 minutes, and the solution was subjected to a viscosity test again. Introducing carbon dioxide to obtain solution with viscosity of 84 mPas, introducing N 2 The zero shear viscosity of the resulting solution was 33 mPas.
Example 8
When the surfactant having carbon dioxide stimulation response viscosifying characteristics as set forth in claim 1 is used as a viscosifying agent to prepare a clean fracturing fluid, the fracturing fluid is mixed with water 100: (3-5) mixing and dissolving, alternately introducing carbon dioxide and N 2 . Wherein the introduction time of the carbon dioxide is 8 minutes, then the viscosity test is carried out, and then CH is introduced into the solution 4 Thereafter, the time period for the passage was 8 minutes, and the solution was subjected to a viscosity test. Introducing carbon dioxide to obtain solution with viscosity of 84 mPas, introducing N 2 The zero shear viscosity of the resulting solution was 15 mPas.
Example 9
When the surfactant having carbon dioxide stimulation responsive viscosifying properties as set forth in claim 1 is used as a viscosifying agent in the preparation of a clean fracturing fluid, the fracturing fluid is mixed with water 100: (3-5) mixing and dissolving, alternately introducing carbon dioxide and N 2 . Wherein the introduction time of the carbon dioxide is 8 minutes, then the viscosity test is carried out, and then CH is introduced into the solution 4 Then, the time for introducing is 4 minutes, and then the reaction is carried outThe solution was subjected to a viscosity test. Introducing carbon dioxide to obtain solution with viscosity of 84 mPas, introducing N 2 The zero shear viscosity of the resulting solution was 4.2 mPas.

Claims (3)

1. A surfactant having carbon dioxide stimuli responsive viscosifying properties, characterized by the general structural formula:
Figure FDA0003562680340000011
wherein R is an unsaturated hydrocarbon chain having 17 to 21 carbon atoms.
2. The surfactant of claim 1, wherein the molecular structure comprises both a tertiary amine and a quaternary amine.
3. When the surfactant as claimed in claim 1 is used as a clean fracturing fluid thickening agent to prepare clean fracturing fluid, the surfactant needs to be mixed with water according to a certain proportion for dissolution, and then carbon dioxide is introduced to enable the surfactant to reach a certain viscosity.
CN202210300456.4A 2022-03-24 2022-03-24 Carbon dioxide response tackifying surfactant and application thereof in fracturing fluid Active CN115029143B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016182542A1 (en) * 2015-05-08 2016-11-17 Halliburton Energy Services, Inc. Carbon dioxide-viscosifiable compositions for subterranean treatment
CN108929669A (en) * 2018-08-17 2018-12-04 西南石油大学 Recyclable clean fracturing fluid thickening agent and preparation method thereof, recovery method and high temperature resistant clean fracturing fluid
CN109486476A (en) * 2018-11-14 2019-03-19 四川大学 A kind of Surfactant Used in Viscoelastic Fracturing Fluids for high temperature self-diverting acid, preparation method and application
CN110257042A (en) * 2019-07-06 2019-09-20 西南石油大学 A kind of reservoir breaks the clean fracturing fluid and preparation method thereof of glue automatically
CN110628409A (en) * 2019-10-10 2019-12-31 陕西延长石油(集团)有限责任公司研究院 Carbon dioxide responsive fluid and intelligent profile control method thereof in heterogeneous oil reservoir
CN113621357A (en) * 2020-05-08 2021-11-09 中国石油天然气股份有限公司 Carbon dioxide response self-thickening intelligent fluid based on supermolecule self-assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016182542A1 (en) * 2015-05-08 2016-11-17 Halliburton Energy Services, Inc. Carbon dioxide-viscosifiable compositions for subterranean treatment
CN108929669A (en) * 2018-08-17 2018-12-04 西南石油大学 Recyclable clean fracturing fluid thickening agent and preparation method thereof, recovery method and high temperature resistant clean fracturing fluid
CN109486476A (en) * 2018-11-14 2019-03-19 四川大学 A kind of Surfactant Used in Viscoelastic Fracturing Fluids for high temperature self-diverting acid, preparation method and application
CN110257042A (en) * 2019-07-06 2019-09-20 西南石油大学 A kind of reservoir breaks the clean fracturing fluid and preparation method thereof of glue automatically
CN110628409A (en) * 2019-10-10 2019-12-31 陕西延长石油(集团)有限责任公司研究院 Carbon dioxide responsive fluid and intelligent profile control method thereof in heterogeneous oil reservoir
CN113621357A (en) * 2020-05-08 2021-11-09 中国石油天然气股份有限公司 Carbon dioxide response self-thickening intelligent fluid based on supermolecule self-assembly

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KONSTANTIN K. SHIRSHIN等: "Specific Organocatalysis in Amidation Reaction of Fatty Acid Methyl Esters with 3-(Dimethylamino)-1-propylamine", CATALYSIS *
WENLONG ZHANG, JINCHENG MAO等: "Effect of propylene glycol substituted group on salt tolerance of a cationic viscoelastic surfactant and its application for brine-based clean fracturing fluid", COLLOIDS AND SURFACES A *
YONGMIN ZHANG等: "Smart wormlike micelles switched by CO2 and air", SOFT MATTER *
ZIGAO HUANG A, JINCHENG MAO等: "Polyhydroxy cationic viscoelastic surfactant for clean fracturing fluids: Study on the salt tolerance and the effect of salt on the high temperature stability of wormlike micelles,", JOURNAL OF MOLECULAR LIQUIDS *
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