WO2019109610A1 - Agent aqueux et poudre d'inhibiteur de schiste de type gemini pour fluides de forage à base d'eau, leurs procédés de préparation et leur utilisation, et inhibiteur et utilisation de celui-ci - Google Patents

Agent aqueux et poudre d'inhibiteur de schiste de type gemini pour fluides de forage à base d'eau, leurs procédés de préparation et leur utilisation, et inhibiteur et utilisation de celui-ci Download PDF

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Publication number
WO2019109610A1
WO2019109610A1 PCT/CN2018/089364 CN2018089364W WO2019109610A1 WO 2019109610 A1 WO2019109610 A1 WO 2019109610A1 CN 2018089364 W CN2018089364 W CN 2018089364W WO 2019109610 A1 WO2019109610 A1 WO 2019109610A1
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WIPO (PCT)
Prior art keywords
water
gemini
based drilling
drilling fluid
shale inhibitor
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PCT/CN2018/089364
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English (en)
Chinese (zh)
Inventor
王继宇
王梦莹
任山
张绍彬
张远康
庹红梅
侯向前
唐朝钧
寇将
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成都劳恩普斯科技有限公司
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Publication of WO2019109610A1 publication Critical patent/WO2019109610A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C213/00—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
    • C07C213/08—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton by reactions not involving the formation of amino groups, hydroxy groups or etherified or esterified hydroxy groups
    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/03—Specific additives for general use in well-drilling compositions
    • C09K8/035—Organic additives
    • 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

Definitions

  • the present disclosure relates to the field of oilfield chemical technology, and in particular to a water-based drilling fluid for a gemini shale inhibitor aqueous agent, a powder, a preparation method and application thereof, and an inhibitor and application thereof.
  • Oil-based drilling fluid is easy to use and is usually used to drill various complex wells. It has the characteristics of good wellbore stability, high integrity of drill cuttings and good lubricity. However, the treatment of oil-based mud is a major problem at present. Pollution may also cause pollution to the formation, and field application restrictions are increasing.
  • the purpose of the present disclosure includes providing a gemini shale inhibitor for water-based drilling fluid, a gemini shale inhibitor water agent for water-based drilling fluid, a preparation method thereof, and a gemini shale inhibitor powder for water-based drilling fluid. And its preparation method and application of a gemini inhibitor for water-based drilling fluids.
  • the present disclosure may employ the following technical solutions:
  • a first aspect of the present disclosure includes providing a gemini shale inhibitor for a water-based drilling fluid, the structure of which is as follows:
  • R1 is an alkyl group having 1 to 6 carbon atoms
  • R2, R3, R4, R5, R6 and R7 are a hydroxyethyl group, a hydroxypropyl group or an alkyl group having 1 to 18 carbon atoms.
  • a second aspect of the present disclosure also includes a method for preparing a water-based drilling fluid for a gemini shale inhibitor aqueous solution, which may include the following steps:
  • the mass ratio of the amine compound to the halogenated alkane in S1 may range from 1.3:1 to 3:1.
  • the raw material of the gemini shale inhibitor aqueous solution for water-based drilling fluid in the S1 may include the following components:
  • Halogenated alkane 25 to 34 parts
  • Amine compounds 45 to 60 parts
  • the halogenated alkane in S1 may include dichloromethane, 1,2-dichloroethane, 1,3-dichloropropane, 1,4-dichlorobutane, 1,5-dichloro Any one or a mixture of any of pentane and 1,6-dichlorohexane.
  • the amine compound in S1 may include any one or a mixture of any of the following, and optionally includes N,N-dimethylethanolamine, N,N-dimethylpropanolamine, N,N- Diethylethanolamine, N,N-diethylpropanolamine and the formula
  • the solvent in S1 includes any one or a mixture of any of methanol, ethanol, acetone, and isopropanol.
  • the amine compound and the halogenated alkane in S1 are mixed and stirred with a solvent at 40 to 120 °C.
  • reaction time of the amine compound and the halogenated alkane and the solvent are stirred and stirred at 40 to 120 ° C for 1 to 24 hours.
  • a third aspect of the present disclosure includes providing a gemini-type shale inhibitor aqueous solution for a water-based drilling fluid prepared by the above-described method for preparing a water-based drilling fluid using a gemini shale inhibitor.
  • a fourth aspect of the present disclosure includes a method of preparing a gemini shale inhibitor powder for a water-based drilling fluid, which may include the following steps:
  • reaction product is distilled under reduced pressure to constant weight
  • reaction product which was distilled under reduced pressure to constant weight was added to a detergent wash, filtered, and dried.
  • the detergent may include acetone, methyl ethyl ketone, methyl ethyl ketone, ethyl acetate, methyl acetate, butyl acetate, diethyl ether, tetrahydrofuran, methyl tert-butyl ether, ethylene glycol dimethyl ether, dioxane and ethylene. Any one or a mixture of any of several alcohol diethyl ethers.
  • the mass ratio of the amine compound to the halogenated alkane ranges from 1.3:1 to 3:1.
  • the raw material of the gemini shale inhibitor powder for water-based drilling fluid comprises, in parts by mass, the following components: halogenated alkane: 25-34 parts; amine compound: 45-60 parts and solvent: 15 to 30 servings.
  • the haloalkane comprises dichloromethane, 1,2-dichloroethane, 1,3-dichloropropane, 1,4-dichlorobutane, 1,5-dichloropentane, and , any one or a mixture of any of 6-dichlorohexane.
  • the amine compound comprises any one or a mixture of any of the following, optionally comprising N,N-dimethylethanolamine, N,N-dimethylpropanolamine, N , N-diethylethanolamine, N,N-diethylpropanolamine and the formula
  • the solvent comprises any one or a mixture of any of methanol, ethanol, acetone, and isopropanol.
  • the amine compound and the halogenated alkane are mixed and stirred with the solvent at 40 to 120 °C.
  • the amine compound and the halogenated alkane are mixed with the solvent at 40 to 120 ° C for a reaction time of 1 to 24 hours.
  • a fifth aspect of the present disclosure includes providing a gemini shale inhibitor powder for a water-based drilling fluid prepared by the method for preparing a gemini shale inhibitor powder for a water-based drilling fluid.
  • a sixth aspect of the present disclosure includes the use of a gemini shale inhibitor (including a powder and a liquid) for a water-based drilling fluid as described above, for example, for preparing a water-based drilling fluid.
  • a gemini shale inhibitor including a powder and a liquid
  • the water-based drilling fluid provided by the present disclosure uses a gemini shale inhibitor to neutralize excess negative charge in the clay, and the polyhydroxyl group contained in the molecule forms a multi-hydrogen bond with the oxygen atom on the clay surface to increase the adhesion. To prevent water molecules from drilling into the clay crystal layer to produce hydration, and to achieve the purpose of inhibiting the swelling of clay minerals.
  • the dual-type shale inhibitor for water-based drilling fluids includes the following technical advantages:
  • the water-based drilling fluid provided by the present disclosure is convenient to use and is more suitable for the application process, and has a breakthrough significance in practical applications.
  • the dual-type shale inhibitor for water-based drilling fluid provided by the present disclosure has many advantages and values as described above, and no similar method has been published or used in the same product, and it is truly innovative, resulting in The easy-to-use and practical effect has many advantages than the existing technology, so it is more suitable for practical use and has a wide range of industrial values.
  • the term “comprising” or “including” may be used in the various embodiments of the present disclosure to indicate the existence of the disclosed function, operation or element, and does not limit one or more functions, operations or elements. increase.
  • the terms “comprising,” “having,” “,” It should not be understood that the existence or addition of one or more features, numbers, steps, operations, components or components of one or more other features, numbers, steps, operations, components, components or combinations of the foregoing are excluded. Or the possibility of a combination of the foregoing.
  • the expression “or” or “at least one of A or / and B” includes any or all combinations of the simultaneously listed characters.
  • the expression “A or B” or “at least one of A or / and B” may include A, may include B, or may include both A and B.
  • the present disclosure provides a gemini shale inhibitor for water-based drilling fluids, the structural diagram of which is as follows:
  • R1 may be an alkyl group having 1 to 6 carbon atoms
  • R2, R3, R4, R5, R6 and R7 may each be a hydroxyethyl group, a hydroxypropyl group or a carbon number of 1 ⁇ 18 alkyl.
  • the water-based drilling fluid refers to a general term for various circulating fluids that meet the drilling work needs with various functions in the oil and gas drilling process.
  • "Gemini” refers to a compound structure having two major hydrophilic head groups and two or more hydrophobic tail chains.
  • the main systems of water-based drilling fluids include dispersing drilling fluid, calcium processing drilling fluid, brine drilling fluid, polymer drilling fluid, positive electric rubber drilling fluid and high temperature deep well water-based drilling fluid.
  • Water-based drilling fluids are more environmentally friendly than oil-based drilling fluids and can effectively reduce pollution to the formation.
  • it is technically challenging to maintain wellbore stabilizers and effectively solve complex problems in the drilling process.
  • the wellbore is prone to instability due to the interaction of geology, drilling operations, drilling fluid and rock formation, mainly in the mud shale section.
  • Clay minerals in shale are the most important cause of stability. When the shale encounters water, the water molecules form hydrogen bonds with the oxygen atoms on the clay surface, or penetrate into the clay crystal layer, resulting in an increase in the spacing of the clay crystal layers, causing the hydration of the clay to expand and increase the volume, hindering the rock in the well.
  • the debris migration, increasing the friction between the drill and the wellbore, etc., will affect the stability of the wellbore.
  • the key to highly inhibitory water-based fracturing fluids is the study of high-efficiency shale inhibitors.
  • the core of research on shale inhibitors is to neutralize the excess negative charge in the clay.
  • the addition of hydroxy compounds capable of forming multiple hydrogen bonds can also exert a certain binding effect.
  • the water-based drilling fluid provided by the present disclosure uses a gemini shale inhibitor to neutralize excess negative charge in the clay by cations, and the hydroxyl group contained in the molecule forms a multi-hydrogen bond with the oxygen atom on the surface of the clay to increase viscosity.
  • a gemini shale inhibitor to neutralize excess negative charge in the clay by cations, and the hydroxyl group contained in the molecule forms a multi-hydrogen bond with the oxygen atom on the surface of the clay to increase viscosity.
  • Cooperate to prevent water molecules from drilling into the clay layer to produce hydration, and to inhibit the expansion of clay minerals.
  • the dual-type shale inhibitor for water-based drilling fluids includes the following technical advantages:
  • the present disclosure also provides a gemini shale inhibitor aqueous agent for water-based drilling fluids, and a preparation method thereof.
  • the preparation method of the gemini shale inhibitor water agent for water-based drilling fluid comprises the following steps:
  • reaction product is a gemini shale inhibitor aqueous solution for water-based drilling fluid.
  • the mass ratio of the amine compound and the halogenated alkane in the above S1 may range from 1.3:1 to 3:1, for example, 1.3:1, 1.32:1, 1.7:1, 1.8:1, 2.4:1, and 3 :1.
  • the raw material of the gemini shale inhibitor aqueous solution for water-based drilling fluid in S1 may include the following components in parts by mass:
  • Halogenated alkane 25 to 34 parts
  • Amine compounds 45 to 60 parts
  • the halogenated alkane in the above S1 may include dichloromethane, 1,2-dichloroethane, 1,3-dichloropropane, 1,4-dichlorobutane, 1,5-dichloropentane. And any one or a mixture of any of 1,6-dichlorohexane. Further, 1,2-dibromoethane, 1,3-dibromopropane, 1,4-dibromobutane, 1,5-dibromopentane, 1,6-dibromohexane and the like may also be included.
  • the amine compound in the above S1 may include any one or a mixture of any of the following, and the material optionally includes N,N-dimethylethanolamine, N,N-dimethylpropanolamine. , N,N-diethylethanolamine, N,N-diethylpropanolamine and the formula
  • N-methyl-N-alkylethanolamine may also be included.
  • the solvent in the above S1 may include any one of methanol, ethanol, acetone, isopropyl alcohol or a mixture of any of several. Further, n-butanol, ethyl acetate, butyl acetate, tetrahydrofuran, and 1,4-dioxane may also be included.
  • the amine compound and the halogenated alkane in the above S1 may be mixed with a solvent and stirred at 40 to 120 °C.
  • the reaction time for stirring under the conditions of 40 to 120 ° C can be, for example, 1 to 24 hours, and if the temperature of the mixing and stirring is not 40 to 120 ° C, the reaction time can be appropriately shortened or lengthened.
  • the present disclosure also provides a gemini shale inhibitor powder for water-based drilling fluids, and a preparation method thereof.
  • the preparation method of the gemini shale inhibitor powder for water-based drilling fluid may include the following steps:
  • reaction product is distilled under reduced pressure to constant weight
  • reaction product which was distilled under reduced pressure to constant weight was added to a detergent wash, filtered, and dried. After drying, a gemini shale inhibitor powder for water-based drilling fluid is obtained.
  • the detergent may include acetone, methyl ethyl ketone, methyl ethyl ketone, ethyl acetate, methyl acetate, butyl acetate, diethyl ether, tetrahydrofuran, methyl tert-butyl ether, ethylene glycol dimethyl ether, dioxane and ethylene. Any one or a mixture of any of several alcohol diethyl ethers.
  • the preparation method of the shale shale inhibitor powder for water-based drilling fluid can be understood as an additional addition to the preparation method of the shale shale inhibitor water agent for water-based drilling fluid.
  • the obtained reaction product was distilled under reduced pressure to constant weight; and the relevant steps of distilling under reduced pressure to a constant weight of the reaction product to acetone washing, filtration and drying were carried out.
  • the raw materials used, the ratio of the raw materials, the mixing time, and the like can be the same as the preparation method of the gemini shale inhibitor aqueous solution for the water-based drilling fluid.
  • the present disclosure also provides a gemini shale inhibitor for the above water-based drilling fluid, comprising a gemini shale inhibitor aqueous solution for water-based drilling fluid and a gemini shale inhibitor powder for water-based drilling fluid.
  • the above inhibitor can be used to prepare a water-based drilling fluid to neutralize excess negative charge in the clay by cations, and the hydroxyl group contained in the molecule forms a multi-hydrogen bond with the oxygen atom on the surface of the clay to increase adhesion and prevent water.
  • the molecules are drilled into the layer of clay to produce hydration, which inhibits the swelling of clay minerals.
  • the reaction product was transferred to a 1000 mL eggplant-shaped flask, and distilled under reduced pressure to a constant weight at 60 ° C, then 200 mL of acetone was added, washed and filtered 3 times, and the filter cake was dried at room temperature under vacuum to a constant weight to obtain a water base.
  • the twin fluid shale inhibitor powder for drilling fluids was transferred to a 1000 mL eggplant-shaped flask, and distilled under reduced pressure to a constant weight at 60 ° C, then 200 mL of acetone was added, washed and filtered 3 times, and the filter cake was dried at room temperature under vacuum to a constant weight to obtain a water base.
  • the twin fluid shale inhibitor powder for drilling fluids was obtained from a 1000 mL eggplant-shaped flask, and distilled under reduced pressure to a constant weight at 60 ° C, then 200 mL of acetone was added, washed and filtered 3 times, and the filter cake was dried at room temperature under vacuum to
  • the reaction product was transferred to a 500 mL eggplant-shaped flask, and distilled under reduced pressure to constant weight at 70 ° C, then 500 mL of acetone was added thereto, washed and filtered once, and the filter cake was dried at room temperature under vacuum to a constant weight to obtain a water base.
  • the twin fluid shale inhibitor powder for drilling fluids was transferred to a 500 mL eggplant-shaped flask, and distilled under reduced pressure to constant weight at 70 ° C, then 500 mL of acetone was added thereto, washed and filtered once, and the filter cake was dried at room temperature under vacuum to a constant weight to obtain a water base.
  • the twin fluid shale inhibitor powder for drilling fluids was obtained from a 500 mL eggplant-shaped flask, and distilled under reduced pressure to constant weight at 70 ° C, then 500 mL of acetone was added thereto, washed and filtered once, and the filter cake was dried at room temperature under vacuum to a constant weight
  • amine obtained by combining N,N-diethylethanolamine, N,N-dimethylpropanolamine, cetyldiethanolamine and octadecyldiethanolamine in a ratio of 2:2:1:0.5 20 parts of halogenated alkane composed of a compound and 1,3-dichloropropane and 1,5-dichloropentane in a ratio of 2:1, in a ratio of 2:1, combined with ethanol and acetone in a ratio of 1:2 28 parts of the solvent was added to a 500 mL three-necked flask.
  • the reaction product was transferred to a 500 mL eggplant-shaped flask, and distilled under reduced pressure to a constant weight at 40 ° C, then 100 mL of acetone was added, washed and filtered 5 times, and the filter cake was dried at room temperature under vacuum to a constant weight to obtain a water base.
  • the twin fluid shale inhibitor powder for drilling fluids was transferred to a 500 mL eggplant-shaped flask, and distilled under reduced pressure to a constant weight at 40 ° C, then 100 mL of acetone was added, washed and filtered 5 times, and the filter cake was dried at room temperature under vacuum to a constant weight to obtain a water base.
  • the twin fluid shale inhibitor powder for drilling fluids was obtained from a 500 mL eggplant-shaped flask, and distilled under reduced pressure to a constant weight at 40 ° C, then 100 mL of acetone was added, washed and filtered 5 times, and the filter cake was dried at room temperature under vacuum to
  • 6 parts of 6-dichlorohexane combined in a ratio of 2:1, in a ratio of 55:34, 30 parts of acetone and isopropanol mixed in a ratio of 2:1 were added to a 500 mL three-necked flask. .
  • amine obtained by combining N,N-diethylethanolamine, N,N-dimethylpropanolamine, cetyldiethanolamine and octadecyldiethanolamine in a ratio of 2:2:1:0.5 20 parts of halogenated alkane composed of a compound and 1,3-dichloropropane and 1,5-dichloropentane in a ratio of 2:1, in a ratio of 2:1, combined with ethanol and acetone in a ratio of 1:2 28 parts of the solvent was added to a 500 mL three-necked flask.
  • the water washability of the gemini shale inhibitor for water-based drilling fluids was determined to be 100% using the method of 7.4 of SY/T 5971-2016.
  • a group of 16g water-based drilling fluid was added to 384g water with ternary shale inhibitor sample, prepared as 4% aqueous solution, charged into high-speed agitator, adjusted to 11000r/min, quickly added 120g bentonite, stirred for 30min, and stopped. After rolling at 120 ° C for 16 h and then stirring at 11000 r / min for 5 min, the viscosity value ⁇ 600 at 600 r / min was measured; the other group was filled with a blank water sample into a high-speed stirrer, the rotation speed was adjusted to 11000 r / min, and 120 g was quickly added.
  • the sample of the shale inhibitor for water-based drilling fluids is a liquid inhibitor containing 50% powder.
  • the water-based drilling fluid provided by the present disclosure uses a gemini shale inhibitor to neutralize excess negative charge in the clay, and the polyhydroxyl group contained in the molecule forms a multi-hydrogen bond with the oxygen atom on the clay surface to increase the adhesion.
  • a gemini shale inhibitor to neutralize excess negative charge in the clay, and the polyhydroxyl group contained in the molecule forms a multi-hydrogen bond with the oxygen atom on the clay surface to increase the adhesion.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Medicinal Preparation (AREA)

Abstract

L'invention concerne un agent aqueux et une poudre d'un inhibiteur de schiste de type de type Gemini pour des fluides de forage à base d'eau, leurs procédés de préparation et un inhibiteur. Après avoir ajouté l'inhibiteur de schiste de type Gemini pour des fluides de forage à base d'eau à un fluide de forage à base d'eau, les charges négatives en excès dans l'argile peuvent être neutralisées par des cations, et les groupes hydroxy contenus dans des molécules forment de multiples liaisons d'hydrogène avec des atomes d'oxygène sur la surface de l'argile, ce qui améliore son effet d'adhérence et empêche les molécules d'eau de pénétrer dans une couche cristalline de l'argile et de provoquer l'hydratation, ce qui permet de réaliser l'objectif d'inhibition du gonflement des minéraux argileux lorsque ceux-ci rencontrent l'eau. L'inhibiteur de schiste de type Gemini pour fluides de forage à base d'eau présente généralement un effet inhibiteur amélioré, et présente également l'effet d'adsorber et de neutraliser des cations et l'effet d'adhérence de multiples liaisons d'hydrogène de groupes hydroxy. De plus, il présente une bonne dispersibilité et une bonne stabilité à long terme, peut toujours maintenir substantiellement l'inhibition de l'hydratation et du gonflement de l'argile après un affouillement répété, et présente une structure chimique stable ainsi qu'une excellente résistance à la température et une excellente tolérance au sel.
PCT/CN2018/089364 2017-12-08 2018-05-31 Agent aqueux et poudre d'inhibiteur de schiste de type gemini pour fluides de forage à base d'eau, leurs procédés de préparation et leur utilisation, et inhibiteur et utilisation de celui-ci WO2019109610A1 (fr)

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CN201711294762.7A CN108179007A (zh) 2017-12-08 2017-12-08 一种水基钻井液用双子型页岩抑制剂水剂、粉剂及其制备方法，以及抑制剂
CN201711294762.7 2017-12-08

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CN116676075B (zh) * 2023-05-11 2024-02-09 中海石油(中国)有限公司海南分公司 一种复合型水合物抑制剂及其应用

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