CN103484084A - Multifunctional oligomerization lubricant for drilling fluid and preparation method of lubricant - Google Patents
Multifunctional oligomerization lubricant for drilling fluid and preparation method of lubricant Download PDFInfo
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- CN103484084A CN103484084A CN201310433036.4A CN201310433036A CN103484084A CN 103484084 A CN103484084 A CN 103484084A CN 201310433036 A CN201310433036 A CN 201310433036A CN 103484084 A CN103484084 A CN 103484084A
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- drilling fluid
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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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/34—Lubricant additives
Abstract
The invention relates to the technical field of lubricants for a drilling fluid and a preparation method of lubricants; the multifunctional oligomerization lubricant for the drilling fluid is composed of the following raw materials in parts by weight: 30-45 parts of a monomer A, 15-20 parts of a monomer B, 45-70 parts of a solvent and 0.05-0.2 part of an initiating agent. According to the invention, specific block copolymerization is performed on the corresponding unsaturated fatty acid so as to obtain the multifunctional oligomerization lubricant for the drilling fluid; the lubricant has the characteristics of good lubricating property, and excellent filtration loss reduction, viscosity reduction and defoaming effects; through the adoption of the multifunctional oligomerization lubricant for the drilling fluid, a layer of oil-wet hydrophobic film can be formed on the surface of a mud cake formed by the drilling fluid, and the hydrocarbon reservoir can be protected better, so that the purpose of multiple effects can be achieved through a lubricant is realized; meanwhile, when the multifunctional oligomerization lubricant for the drilling fluid is added into the drilling fluid, other fewer addition agents or even no other addition agent is added into the drilling fluid, so that the drilling cost is lowered, the resource loss is reduced, and the environmental protection is further facilitated.
Description
Technical field
the present invention relates to lubricant for drilling fluids and preparation method thereof technical field, is multi-functional oligomeric-type lubricant and preparation method thereof for a kind of drilling fluid.
Background technology
in the past each elephant with lubricator material therefor substantially adopt more single lubricated lipid material and the composite product of all kinds of oil product, because structure is single, low temperature tolerance ability a little less than, when northern day and night temperature is larger, the phenomenon that there will be condensation, layering even to freeze, now this series products is difficult to its due effect of performance.Current lubricant for drilling fluids system is compound system substantially, only depends on the existing length of lubricating grease oleophylic chain and improve corresponding dosage to maintain its lubricant effect, is unfavorable for operation and environmental protection.Such lubricant is more single, falls leak-off, viscosity reduction, defoaming effect not obvious.Need to add multiple auxiliary agent to drilling fluid and can realize this effect, cause resource loss, be unfavorable for environment protection.In recent years, each elephant extensively adopts multi-functional drilling well auxiliary agent, to reach the purpose of energy efficiency.But substantially adopt at present composite pattern, fail to reach the effect of potion multiple-effect.And once it is high to take structurally-modified product to exist cost, the restricted problem of range of application.
Summary of the invention
the invention provides multi-functional oligomeric-type lubricant and preparation method thereof for a kind of drilling fluid; overcome the deficiency of above-mentioned prior art, it can effectively solve existing lubricant for drilling fluids and need add multi-functional drilling well auxiliary agent and have the problem that cost is high and application is limited and cause resource loss and be unfavorable for environment protection.
one of technical scheme of the present invention realizes by following measures: multi-functional oligomeric-type lubricant for a kind of drilling fluid, raw materials by weight portion consists of 30 parts to 45 parts monomer A, 15 parts to 20 parts monomers B, 45 parts to 70 parts solvents, 0.05 part to 0.2 part initiator.
below the further optimization and/or improvements to one of foregoing invention technical scheme:
above-mentioned drilling fluid obtains as follows with multi-functional oligomeric-type lubricant: by the monomer A of aequum, monomers B and solvent add in reactor and stir, the reacting by heating still makes temperature of charge in reactor be increased to 55 ℃ to 80 ℃, add the initiator of aequum at twice in reactor, the add-on of each initiator is half of aequum initiator, be 1 minute to 10 minutes the interval time added, then reactor is vacuumized to processing, obtain multi-functional oligomeric-type lubricant for drilling fluid after standing 2 hours to 3 hours when in the question response still, the adularescent floss occurs.
above-mentioned stir speed (S.S.) is 40 rev/mins to 90 rev/mins; Or/and, the vacuum tightness in reactor be-0.05 MPa extremely-0.08MPa.
above-mentioned monomer A is more than one in hexadecyl unsaturated fatty acids, octadecyl unsaturated fatty acids and cottonseed grease; Or/and monomers B is more than one in vinylformic acid, methacrylic acid, dimethyl diallyl ammonium chloride and methacryloxypropyl trimethyl ammonium chloride; Or/and solvent is-more than one in 35# diesel engine clean fuel, whiteruss and white oil.
above-mentioned initiator is Diisopropyl azodicarboxylate; Perhaps initiator is benzoyl peroxide; Perhaps initiator is the mixture that ammonium persulphate and sodium bisulfite are made into for 0.8:1 to 1.2:1 in molar ratio.
two of technical scheme of the present invention realizes by following measures: a kind of drilling fluid is undertaken by following by the preparation method of multi-functional oligomeric-type lubricant, monomer A by aequum, monomers B and solvent add in reactor and stir, the reacting by heating still makes temperature of charge in reactor be increased to 55 ℃ to 80 ℃, add the initiator of aequum at twice in reactor, the add-on of each initiator is half of aequum initiator, be 1 minute to 10 minutes the interval time added, then reactor is vacuumized to processing, obtain multi-functional oligomeric-type lubricant for drilling fluid after standing 2 hours to 3 hours when in the question response still, the adularescent floss occurs.
below two the further optimization and/or improvements to the foregoing invention technical scheme:
above-mentioned stir speed (S.S.) is 40 rev/mins to 90 rev/mins; Or/and, the vacuum tightness in reactor be-0.05 MPa extremely-0.08MPa.
above-mentioned monomer A is more than one in hexadecyl unsaturated fatty acids, octadecyl unsaturated fatty acids and cottonseed grease; Or/and monomers B is more than one in vinylformic acid, methacrylic acid, dimethyl diallyl ammonium chloride and methacryloxypropyl trimethyl ammonium chloride; Or/and solvent is-more than one in 35# diesel engine clean fuel, whiteruss and white oil.
above-mentioned initiator is Diisopropyl azodicarboxylate; Perhaps initiator is benzoyl peroxide; Perhaps initiator is the mixture that ammonium persulphate and sodium bisulfite are made into for 0.8:1 to 1.2:1 in molar ratio.
the present invention obtains multi-functional oligomeric-type lubricant for drilling fluid by corresponding unsaturated fatty acids being carried out to block copolymerization targetedly, have lubricity good, the characteristics that filtration effect, viscosity reducing effect and defoaming effect are good fall, the mud cake surface that drilling fluid of the present invention can form at drilling fluid with multi-functional oligomeric-type lubricant forms one deck oleophyllie hydrophobic film, the protection hydrocarbon zone is had to good result, thereby reached the purpose of potion multiple-effect; Drilling fluid of the present invention joins in drilling fluid with multi-functional oligomeric-type lubricant simultaneously, and other auxiliary agent will not add even and add less, thereby has reduced drilling cost, has reduced resource loss, is conducive to environment protection yet.
Embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and practical situation.
embodiment 1, multi-functional oligomeric-type lubricant for this drilling fluid, and raw materials by weight portion consists of 30 parts to 45 parts monomer A, 15 parts to 20 parts monomers B, 45 parts to 70 parts solvents, 0.05 part to 0.2 part initiator.
embodiment 2, multi-functional oligomeric-type lubricant for this drilling fluid, and raw materials by weight portion consists of 30 parts or 45 parts of monomer A, 15 parts or 20 parts of monomers B, 45 parts or 70 parts of solvents, 0.05 part or 0.2 part of initiator.
embodiment 3, this drilling fluid obtains by following preparation method with multi-functional oligomeric-type lubricant, monomer A by aequum, monomers B and solvent add in reactor and stir, the reacting by heating still makes temperature of charge in reactor be increased to 55 ℃ to 80 ℃, add the initiator of aequum at twice in reactor, the add-on of each initiator is half of aequum initiator, be 1 minute to 10 minutes the interval time added, then reactor is vacuumized to processing, obtain multi-functional oligomeric-type lubricant for drilling fluid after standing 2 hours to 3 hours when in the question response still, the adularescent floss occurs.Before adding, monomer A and monomers B check the content of monomer A and monomers B by acidity test, require the quality percentage composition of monomer A to be not less than 99%, the quality percentage composition of monomers B is not less than 99%, and solvent is carried out to flashing test, requires the open flash point of solvent to be not less than 60 ℃.Use drilling fluid of the present invention to need drilling design analysis, little sample testing and three steps of on-the-spot with slurry with multi-functional oligomeric-type lubricant; Drilling design is analyzed, and by analyzing, requires to know drilling fluid drilling strata structure, and whether other drilling well auxiliary agents used are composite with multi-functional oligomeric-type lubricant with drilling fluid of the present invention, the indexs such as drilling fluid density, viscosity, API fluid loss size; Little sample testing requires to adding drilling fluid of the present invention to carry out full performance test with the drilling fluid of multi-functional oligomeric-type lubricant, to meet design requirement; On-the-spot with slurry is to use the method for suction to add slurry commanding tank, stirs and gets final product.Drilling fluid of the present invention is the homogeneous white emulsion by the outward appearance of multi-functional oligomeric-type lubricant, and free from extraneous odour can be dispersed in the base slurry.Drilling fluid of the present invention can be controlled in 90.5% to 98.5% with the lubricating coefficient reduced rate of multi-functional oligomeric-type lubricant, density recovery rate as defoamer can be controlled in 90% to 98%, in 4% slope soil paste, press filtration vector reduced rate can be controlled in 20% to 30%, 4% slope soil paste reduced viscosity rate 50% to 70%, the sticking coefficient reduced rate can be controlled in 35% to 50%; Drilling fluid of the present invention is placed one week rear performance without considerable change with the mud system of multi-functional oligomeric-type lubricant formulation.
embodiment 4, and as the optimization of above-described embodiment, the stir speed (S.S.) in embodiment 4 is 40 rev/mins to 90 rev/mins; Or/and, the vacuum tightness in reactor be-0.05 MPa extremely-0.08MPa.
embodiment 5, and as the optimization of above-described embodiment, the monomer A in embodiment 5 is more than one in hexadecyl unsaturated fatty acids, octadecyl unsaturated fatty acids and cottonseed grease; Or/and monomers B is more than one in vinylformic acid, methacrylic acid, dimethyl diallyl ammonium chloride and methacryloxypropyl trimethyl ammonium chloride; Or/and solvent is-more than one in 35# diesel engine clean fuel, whiteruss and white oil.
embodiment 6, and as the optimization of above-described embodiment, the initiator in embodiment 6 is Diisopropyl azodicarboxylate; Perhaps initiator is benzoyl peroxide; Perhaps initiator is the mixture that ammonium persulphate and sodium bisulfite are made into for 0.8:1 to 1.2:1 in molar ratio.
the drilling fluid that the above embodiment of the present invention obtains is shown in Table 1 by multi-functional oligomeric-type lubricant and domestic common drilling fluid average behaviour parameter comparison with lubricator.
table 1
| Performance perameter | Domestic common drilling fluid with lubricator | Multi-functional oligomeric-type lubricant for drilling fluid of the present invention |
| Lubricating coefficient reduced rate (%) | 78 to 96.5 | 90.5 to 98.5 |
| Density recovery rate (%) | 72 to 88 | 90 to 98 |
| Middle press filtration vector reduced rate (%) | 0 to 12 | 20 to 30 |
| Apparent viscosity reduced rate (%) | 0 to 30 | 50 to 70 |
| Sticking coefficient reduced rate (%) | 5 to 24 | 35 to 50 |
as can be seen from Table 1, domestic common drilling fluid average behaviour parameter lubricating coefficient reduced rate, density recovery rate, middle press filtration vector reduced rate, apparent viscosity reduced rate and sticking coefficient reduced rate with lubricator is respectively 78% to 96.5%, 72% to 88%, 0 to 12%, 0 to 30%, 5% to 24%; The drilling fluid that the above embodiment of the present invention obtains is respectively 90.5% to 98.5%, 90% to 98%, 20% to 30%, 50% to 70%, 35% to 50% with average behaviour parameter lubricating coefficient reduced rate, density recovery rate, middle press filtration vector reduced rate, apparent viscosity reduced rate and the sticking coefficient reduced rate of multi-functional oligomeric-type lubricant; With the more domestic common drilling fluid of multi-functional oligomeric-type lubricant, lubricating coefficient reduced rate, density recovery rate, middle press filtration vector reduced rate, apparent viscosity reduced rate and sticking coefficient reduced rate with lubricator all is greatly increased the drilling fluid that the above embodiment of the present invention obtains, and illustrates that the drilling fluid that the above embodiment of the present invention obtains is good by the lubricity of multi-functional oligomeric-type lubricant, to fall filtration effect, viscosity reducing effect and defoaming effect good; The mud cake surface that the drilling fluid that the above embodiment of the present invention obtains can form at drilling fluid with multi-functional oligomeric-type lubricant forms one deck oleophyllie hydrophobic film, the protection hydrocarbon zone is had to good result, thereby reached the purpose of potion multiple-effect; Drilling fluid of the present invention adds in drilling fluid with multi-functional oligomeric-type lubricant simultaneously, and other auxiliary agent will not add even and add less, thereby has reduced drilling cost, has reduced resource loss, is conducive to environment protection yet.
above technical characterictic has formed embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (9)
1. a multi-functional oligomeric-type lubricant for drilling fluid, is characterized in that raw materials by weight portion consists of 30 parts to 45 parts monomer A, 15 parts to 20 parts monomers B, 45 parts to 70 parts solvents, 0.05 part to 0.2 part initiator.
2. multi-functional oligomeric-type lubricant for drilling fluid according to claim 1, it is characterized in that this drilling fluid obtains as follows with multi-functional oligomeric-type lubricant: by the monomer A of aequum, monomers B and solvent add in reactor and stir, the reacting by heating still makes temperature of charge in reactor be increased to 55 ℃ to 80 ℃, add the initiator of aequum at twice in reactor, the add-on of each initiator is half of aequum initiator, be 1 minute to 10 minutes the interval time added, then reactor is vacuumized to processing, obtain multi-functional oligomeric-type lubricant for drilling fluid after standing 2 hours to 3 hours when in the question response still, the adularescent floss occurs.
3. multi-functional oligomeric-type lubricant for drilling fluid according to claim 2, is characterized in that stir speed (S.S.) is 40 rev/mins to 90 rev/mins; Or/and, the vacuum tightness in reactor be-0.05 MPa extremely-0.08MPa.
4. according to claim 1 or multi-functional oligomeric-type lubricant for 2 or 3 described drilling fluids, it is characterized in that monomer A is more than one in hexadecyl unsaturated fatty acids, octadecyl unsaturated fatty acids and cottonseed grease; Or/and monomers B is more than one in vinylformic acid, methacrylic acid, dimethyl diallyl ammonium chloride and methacryloxypropyl trimethyl ammonium chloride; Or/and solvent is-more than one in 35# diesel engine clean fuel, whiteruss and white oil.
5. according to claim 1 or 2 or 3 or 4 multi-functional oligomeric-type lubricant for described drilling fluid, it is characterized in that initiator is Diisopropyl azodicarboxylate; Perhaps initiator is benzoyl peroxide; Perhaps initiator is the mixture that ammonium persulphate and sodium bisulfite are made into for 0.8:1 to 1.2:1 in molar ratio.
6. the preparation method of multi-functional oligomeric-type lubricant for a drilling fluid according to claim 1, it is characterized in that being undertaken by following, monomer A by aequum, monomers B and solvent add in reactor and stir, the reacting by heating still makes temperature of charge in reactor be increased to 55 ℃ to 80 ℃, add the initiator of aequum at twice in reactor, the add-on of each initiator is half of aequum initiator, be 1 minute to 10 minutes the interval time added, then reactor is vacuumized to processing, obtain multi-functional oligomeric-type lubricant for drilling fluid after standing 2 hours to 3 hours when in the question response still, the adularescent floss occurs.
7. the preparation method of multi-functional oligomeric-type lubricant for drilling fluid according to claim 6, is characterized in that stir speed (S.S.) is 40 rev/mins to 90 rev/mins; Or/and, the vacuum tightness in reactor be-0.05 MPa extremely-0.08MPa.
8. the preparation method with multi-functional oligomeric-type lubricant according to the described drilling fluid of claim 6 or 7, is characterized in that monomer A is more than one in hexadecyl unsaturated fatty acids, octadecyl unsaturated fatty acids and cottonseed grease; Or/and monomers B is more than one in vinylformic acid, methacrylic acid, dimethyl diallyl ammonium chloride and methacryloxypropyl trimethyl ammonium chloride; Or/and solvent is-more than one in 35# diesel engine clean fuel, whiteruss and white oil.
9. according to claim 6 or the preparation method of multi-functional oligomeric-type lubricant for 7 or 8 described drilling fluids, it is characterized in that initiator is Diisopropyl azodicarboxylate; Perhaps initiator is benzoyl peroxide; Perhaps initiator is the mixture that ammonium persulphate and sodium bisulfite are made into for 0.8:1 to 1.2:1 in molar ratio.
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| CN201310433036.4A CN103484084B (en) | 2013-09-18 | 2013-09-18 | Drilling fluid multi-functional oligomeric-type lubricant and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199682A (en) * | 2015-10-21 | 2015-12-30 | 西安长庆化工集团有限公司 | Strongly adsorbent solid lubricant for drilling fluid and synthesis method of solid lubricant |
| CN106220797A (en) * | 2016-08-25 | 2016-12-14 | 中国石油大学(北京) | Diblock copolymer being applicable to oil base drilling fluid viscosity reduction and its preparation method and application and oil base drilling fluid and application |
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| WO2013019704A1 (en) * | 2011-07-29 | 2013-02-07 | M-I L.L.C. | Hydrocarbon fluid flow improver |
| CN103013462A (en) * | 2012-12-27 | 2013-04-03 | 河北华运鸿业化工有限公司 | Plastic ball solid lubricating agent for drilling fluid and method for preparing plastic ball solid lubricating agent |
| CN103242809A (en) * | 2013-05-10 | 2013-08-14 | 西南石油大学 | Acrylic-series emulsion copolymer and application thereof as well as drilling fluid drag reducer and preparation method thereof |
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2013
- 2013-09-18 CN CN201310433036.4A patent/CN103484084B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013019704A1 (en) * | 2011-07-29 | 2013-02-07 | M-I L.L.C. | Hydrocarbon fluid flow improver |
| CN103013462A (en) * | 2012-12-27 | 2013-04-03 | 河北华运鸿业化工有限公司 | Plastic ball solid lubricating agent for drilling fluid and method for preparing plastic ball solid lubricating agent |
| CN103242809A (en) * | 2013-05-10 | 2013-08-14 | 西南石油大学 | Acrylic-series emulsion copolymer and application thereof as well as drilling fluid drag reducer and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199682A (en) * | 2015-10-21 | 2015-12-30 | 西安长庆化工集团有限公司 | Strongly adsorbent solid lubricant for drilling fluid and synthesis method of solid lubricant |
| CN105199682B (en) * | 2015-10-21 | 2019-02-22 | 西安长庆化工集团有限公司 | A kind of drilling fluid strong adsorbent solid lubricant and its synthetic method |
| CN106220797A (en) * | 2016-08-25 | 2016-12-14 | 中国石油大学(北京) | Diblock copolymer being applicable to oil base drilling fluid viscosity reduction and its preparation method and application and oil base drilling fluid and application |
| CN106220797B (en) * | 2016-08-25 | 2017-06-30 | 中国石油大学(北京) | Diblock copolymer suitable for oil base drilling fluid viscosity reduction and its preparation method and application and oil base drilling fluid and application |
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Effective date of registration: 20211228 Address after: 834000 No. 2500-1, Ping An Avenue, Baijiantan District, Karamay City, Xinjiang Uygur Autonomous Region Patentee after: Xinjiang beiken Chemical Co.,Ltd. Patentee after: Xinjiang beiken Energy Engineering Co., Ltd Address before: 834009 No.91, menmen Road, Baijiantan District, Karamay City, Xinjiang Uygur Autonomous Region Patentee before: Xinjiang Beiken Energy Engineering Stock Co.,Ltd. |
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