CN102766240A - Fluid loss additive for drilling fluid and preparation method thereof - Google Patents
Fluid loss additive for drilling fluid and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a fluid loss additive for drilling fluid and a preparation method thereof, belonging to the technical field of chemical drilling fluid treating agents for oilfields. The method comprises the following steps of: carrying out one-step reaction on phenol, formaldehyde, humate, pyrosulfite and anhydrous sulfite so as to obtain a sulfonated phenolic humic acid resin; in the presence of an initiator, carrying out graft copolymerization on the sulfonated phenolic humic acid resin and a mixture of sodium hydroxide, 2-acrylamide-2-methyl-propyl sulfonate, acrylamide and dodecylacrylamide; and carrying out drying and crushing on the obtained product so as to obtain sulfonated phenolic humic acid resin-alkenyl monomer graft copolymer. The fluid loss additive disclosed by the invention has the functions of controlling the rheological property of drilling fluid and reducing the high-temperature and high-pressure filter loss of drilling fluid, not only enhances the thermal stability of side chains of a chain polymer, but also improves the salt tolerance of a sulfonated phenolic resin, and guarantees that products have good properties under high temperature and high salt conditions.
Description
Technical field:
The present invention relates to a kind of fluid loss additive for boring fluid and preparation method thereof; Or rather; Be a kind of sulfonated phenolic humic acid resin-alkenyl monomer graft copolymer drilling fluid with high temperature fluid loss agent and preparation method thereof, belong to oilfield chemistry additive for drilling fluid technical field.
Background technology:
Increasingly sophisticated along with drilling strata; Deep-well, ultra deep well get more and more; Bottom temperature can reach the high temperature more than 200 ℃; Under the hot conditions property of drilling fluid has been proposed harsher requirement, fluid loss agent is one of crucial treatment agent that guarantees property of drilling fluid, and its performance quality is the key that guarantees that property of drilling fluid is good and bad.The polymer filtrate reducer relative molecular mass of rig-site utilization is high at present, in order under salt-water drilling fluid and hot conditions, to play the leak-off effect of falling, just must improve add-on, and the disadvantageous effect of bringing is that drilling fluid viscosity is improved, and rheological is wayward." printing during chemical industry " the 12nd phase in 1998 has been introduced a kind of temperature resistance that is obtained by AM, 2-acrylamido-2-methyl propane sulfonic acid (AMPS) and humic acids graft copolymerization, the filtrate reducer for drilling fluid of anti-salt, and its temperature resistance ability reaches 180 ℃.It is that raw material makes Sodium salts humic acids that " Tianjin chemical industry " the 2nd phase in 2008 has been introduced with brown coal; Be monomer with AMPS, acrylic amide and Sodium salts humic acids again; Adopt ammonium persulphate and sodium sulfite anhy 96 redox system to make initiator; With water solution polymerization process synthetic copolymer fluid loss agent, in fresh water base slurry through 180 ℃ aging after, the high temperature and high pre ssure filtration under 150 ℃ can be controlled at below the 30mL.U.S.'s patent of invention (US5028271) discloses a kind of vinyl monomer-grafted brown coal fluid loss agent on July 2nd, 1991, and the monomer that is used for graft copolymerization can be 2-acrylic amide-2-methyl propane sulfonic acid, DMAA, acrylic amide; Vinyl, vinyl acetate between to for plastic, vinyl cyanide; The dimethylamino methyl methyl acrylate, vinylbenzene, vinyl sulfonic acid; The amino ammonium chloride of dimethylaminoethyl acrylate methyl, in the vinylformic acid two or more, this graft copolymer can resist 177 ℃ high temperature.(US7523784 US7842652) discloses a kind of humic acid vinyl monomer graft copolymer that is applicable to cement filter loss-reducing agent for oil well respectively to U.S.'s patent of invention on April 28th, 2009 and on November 30th, 2010." Southwest Petrol University's journal (natural science edition) " the 4th phase in 2010 has been introduced the low AOBS/AM/AA-humic acid graft copolymer of a kind of relative molecular mass; It adopts humic acid and acryloyl-oxy butyl sulfonic acid (AOBS), acrylic amide (AM), vinylformic acid (AA) graft copolymerization to obtain; Its Heat stability is good; Temperature resistance reaches 240 ℃, in fresh water, salt solution and saturated salt-water drilling fluid, all has the better reducing fluid loss effect, and is less to the influence of drilling fluid viscosity; Can control the high temperature multiviscosisty of drilling fluid effectively; Have excellent compatibility with SMC, SMP etc., be used for the Repone K drilling fluid of density 2.57g/cm3, can control the high temperature and high pre ssure filtration and the rheological of drilling fluid effectively.Existing polymer filtrate reducer can satisfy 200 ℃ of demands with interior drilling well basically, but can not satisfy the needs of salt solution and saturated salt-water drilling fluid high temperature and high pre ssure filtration and rheological control.
Summary of the invention:
The purpose of this invention is to provide a kind of fluid loss additive for boring fluid, can control the rheological and reduction drilling fluid high-temperature high pressure filter loss of drilling fluid preferably.
The present invention simultaneously also provides a kind of preparation method of fluid loss additive for boring fluid, adopts aqueous solution polymerization, and reaction process is simple to operate, easily control.
The present invention realizes through following technical scheme:
A kind of fluid loss additive for boring fluid obtains sulfonated phenolic humic acid resin by phenol, formaldehyde, humate, pyrosulfite, anhydrous sodium vitriol single step reaction; In the presence of initiator; Sulfonated phenolic humic acid resin carries out graft copolymerization with the mixture of sodium hydroxide, 2-acrylic amide-2-methyl propane sulfonic acid (AMPS), acrylic amide (AM), alkyl acrylamide again; Oven dry, pulverizing promptly get sulfonated phenolic humic acid resin-alkenyl monomer graft copolymer.
A kind of preparation method of fluid loss additive for boring fluid, raw material adopts the mass parts ratio, may further comprise the steps:
(1) 550～650 parts of water, 40～80 parts of sodium hydroxide are added reactor drum; After treating dissolution of sodium hydroxide, cooling, add 290～311 parts of AMPS, add 126～154 parts of acrylic amides and 135～165 parts of alkyl acrylamides then; Be stirred to whole dissolvings, obtain the reaction mixture of monomer A;
The reaction mixture of the monomer A that (2) step 1 is obtained is with after sulfonated phenolic humic acid resin solution mixes; Add 1.0～3.0 parts of initiators down in 55～80 ℃; Remain on and carry out copolyreaction 4～6 hours under this temperature; Oven dry, pulverizing promptly obtain AMPS/AM/DMAM-sulfonated phenolic humic acid resin graft copolymer.
The said sulfonated phenolic humic acid of step (2) resin prepares by following method: 280～320 parts of water, 94 parts of phenol, 200～217 parts of formaldehyde, 95～110 parts of humates, 60.8～76 parts of pyrosulfites, 22～107 parts of anhydrous sodium vitriol are added in the reactor drum; Reacted 6～8 hours down in 120～165 ℃, obtain sulfonated phenolic humic acid resin.
Described humate is potassium humate or sodium humate.
Described pyrosulfite is potassium pyrosulfite or Sodium Pyrosulfite.
Described anhydrous sodium vitriol is anhydrous potassium sulfite or sodium sulphite anhydrous 99.3.
In the above-mentioned raw materials, described initiator is a kind of in Potassium Persulphate, ammonium persulphate, the ydrogen peroxide 50.
In the above-mentioned raw materials, described alkyl acrylamide is N, N-DMAA, N, a kind of in N-diethylammonium acrylic amide, NSC 11448, the isobutyl-acrylic amide.
The invention has the beneficial effects as follows:
(1) sulfonated phenolic humic acid resin of the present invention-alkenyl monomer graft copolymer not only has the control drilling fluid rheology but also have the performance that reduces the drilling fluid high-temperature high pressure filter loss under hot conditions; Both improved simultaneously the thermostability of chain polymer side chain; Improved the saline-alkaline tolerance of sulfonated phenol formaldehyde resin again, guaranteed that product has superperformance under high temperature (220 ℃) high salt (saturated brine) condition.
(2) the present invention adopts aqueous solution polymerization, and reaction process controls easily, simple to operate, constant product quality, and environmentally safe owing to introduced cheap humic acid, has reduced the raw materials cost of polymkeric substance, helps promoting.
Embodiment:
Below in conjunction with specific embodiment the present invention is further specified.But the present invention is not limited in following embodiment.
Embodiment 1
320g water, 94g phenol, 208g formaldehyde, 100g sodium humate, 66.5g Sodium Pyrosulfite, 88.2g sodium sulphite anhydrous 99.3 are added in the reactor drum, reacted 8 hours down, obtain sulfonated phenolic humic acid resin in 120 ℃; 600g water, 60g sodium hydroxide are added reaction flask, treat dissolution of sodium hydroxide, cooling after, add 310.5gAMPS, add 140g acrylic amide and 150gN then, the N-DMAA is stirred to whole dissolvings, obtains monomeric reaction mixture; Sulfonated phenolic humic acid resin solution and monomeric reaction mixture is even; Add the 1.8g ammonium persulfate initiator down in 55 ℃; Remain under this temperature and reacted 5 hours, oven dry, pulverizing promptly obtain P (AMPS-AM-AAM)/sulfonated phenolic humic acid resin graft copolymer.
Embodiment 2
320g water, 94g phenol, 217g formaldehyde, 110g potassium humate, 76g potassium pyrosulfite, 82g anhydrous potassium sulfite are added in the reactor drum, reacted 7 hours down, obtain sulfonated phenolic humic acid resin in 125 ℃; 550g water, 56g sodium hydroxide are added reaction flask, treat dissolution of sodium hydroxide, cooling after, add 290gAMPS, add 126g acrylic amide and 140gN then, the N-DMAA is stirred to whole dissolvings, obtains monomeric reaction mixture.Sulfonated phenolic humic acid resin solution and monomeric reaction mixture is even; Add the 1.5g ammonium persulfate initiator down in 60 ℃; Remain under this temperature and reacted 6 hours, oven dry, pulverizing promptly obtain P (AMPS-AM-AAM)/sulfonated phenolic humic acid resin graft copolymer.
Embodiment 3
280g water, 94g phenol, 200g formaldehyde, 95g sodium humate, 60.8g Sodium Pyrosulfite, 107g sodium sulphite anhydrous 99.3 are added in the reactor drum, reacted 7 hours down, obtain sulfonated phenolic humic acid resin in 165 ℃; 650g water, 64g sodium hydroxide are added reaction flask, treat dissolution of sodium hydroxide, cooling after, add 311gAMPS, add 154g acrylic amide and 135gN then, the N-DMAA is stirred to whole dissolvings, obtains monomeric reaction mixture; Sulfonated phenolic humic acid resin solution and monomeric reaction mixture is even; Add the 1.8g ammonium persulfate initiator down in 65 ℃; Remain under this temperature and reacted 6 hours, oven dry, pulverizing promptly obtain P (AMPS-AM-AAM)/sulfonated phenolic humic acid resin graft copolymer.
Embodiment 4
280g water, 94g phenol, 217g formaldehyde, 105g potassium humate, 76g potassium pyrosulfite, 82g anhydrous potassium sulfite are added in the reactor drum, reacted 8 hours down, obtain sulfonated phenolic humic acid resin in 125 ℃.600g water, 60g sodium hydroxide are added reaction flask, treat dissolution of sodium hydroxide, cooling after, add 310.5gAMPS, add 140g acrylic amide and 150gN-isobutyl-acrylic amide then, be stirred to whole dissolvings, obtain monomeric reaction mixture.Sulfonated phenolic humic acid resin solution and monomeric reaction mixture is even; Add 1.5g hydrogen peroxide initiator down in 70 ℃; Remain under this temperature and reacted 6 hours, oven dry, pulverizing promptly obtain P (AMPS-AM-AAM)/sulfonated phenolic humic acid resin graft copolymer.
Embodiment 5
320g water, 94g phenol, 208g formaldehyde, 100g sodium humate, 66.5g Sodium Pyrosulfite, 88.2g sodium sulphite anhydrous 99.3 are added in the reactor drum, reacted 6 hours down, obtain sulfonated phenolic humic acid resin in 145 ℃.600g water, 60g sodium hydroxide are added reaction flask, treat dissolution of sodium hydroxide, cooling after, add 310.5gAMPS, add 126g acrylic amide and 165gN then, N-diethylammonium acrylic amide is stirred to whole dissolvings, obtains monomeric reaction mixture.Sulfonated phenolic humic acid resin solution and monomeric reaction mixture is even; Add 2.0g Potassium Persulphate initiator down in 75 ℃; Remain under this temperature and reacted 6 hours, oven dry, pulverizing promptly obtain P (AMPS-AM-AAM)/sulfonated phenolic humic acid resin graft copolymer.
Embodiment 6
320g water, 94g phenol, 208g formaldehyde, 100g sodium humate, 66.5g Sodium Pyrosulfite, 88.2g sodium sulphite anhydrous 99.3 are added in the reactor drum, reacted 6 hours down, obtain sulfonated phenolic humic acid resin in 145 ℃.600g water, 60g sodium hydroxide are added reaction flask, treat dissolution of sodium hydroxide, cooling after, add 310.5gAMPS, add 140g acrylic amide and 135gN-NSC 11448 then, be stirred to whole dissolvings, obtain monomeric reaction mixture.Sulfonated phenolic humic acid resin solution and monomeric reaction mixture is even; Add the 1.8g ammonium persulfate initiator down in 80 ℃; Remain under this temperature and reacted 6 hours, oven dry, pulverizing promptly obtain P (AMPS-AM-AAM)/sulfonated phenolic humic acid resin graft copolymer.
The foregoing description 1 prepared filtration reduction of high-temperature drilling liquid fluid loss agent in the high-density saturated salt-water drilling fluid can be seen table 1.Drilling fluid consists of: 1.5% bentonite slurry+6%SMC+0.5%XJ viscosity-depression agent+5%HTASP+2%NaOH+0.1% tensio-active agent+NaCl increases the weight of to density 2.25g/cm with tiff to saturated
3Drilling fluid adds 1% soda ash in 220 ℃ of down aging 16h, and high-speed stirring 20 minutes is measured property of drilling fluid, high temperature and high pre ssure filtration (FL down in 60 ℃
HTHP) in 180 ℃, pressure reduction 3.5MPa measures down.
The effect contrast table of product in the high-density saturated salt-water drilling fluid for preparing by embodiment 1 among table 1 the present invention
By knowing in the table 1; In drilling fluid, add by after the prepared high-temperature drilling liquid fluid loss agent of embodiment 1, the rheological property of drilling fluid significantly improves, and middle press filtration vector and high temperature and high pre ssure filtration all significantly reduce; When the multipolymer dosage is 5%; In the press filtration vector be 1.5mL, high temperature and high pre ssure filtration is 24mL, 17.5mL and 150mL when not adding multipolymer.Above-mentioned prepared high-temperature drilling liquid fluid loss agent has to be controlled drilling fluid rheology preferably and presses in the drilling fluid and the performance of high temperature and high pre ssure filtration with reducing.
Claims (9)
1. a fluid loss additive for boring fluid obtains sulfonated phenolic humic acid resin by phenol, formaldehyde, humate, pyrosulfite, sodium sulphite anhydrous 99.3 single step reaction; In the presence of initiator; Sulfonated phenolic humic acid resin carries out graft copolymerization with the mixture of sodium hydroxide, 2-acrylic amide-2-methyl propane sulfonic acid (AMPS), acrylic amide (AM), alkyl acrylamide again; Oven dry, pulverizing promptly get sulfonated phenolic humic acid resin-alkenyl monomer graft copolymer.
2. a kind of fluid loss additive for boring fluid according to claim 1 is characterized in that: described humate is potassium humate or sodium humate; Described pyrosulfite is potassium pyrosulfite or Sodium Pyrosulfite; Described anhydrous sodium vitriol is anhydrous potassium sulfite or sodium sulphite anhydrous 99.3.
3. the preparation method of a fluid loss additive for boring fluid, raw material adopts the mass parts ratio, may further comprise the steps:
(1) 550～650 parts of water, 40～80 parts of sodium hydroxide are added reactor drum; After treating dissolution of sodium hydroxide, cooling, add 290～311 parts of AMPS, add 126～154 parts of acrylic amides and 135～165 parts of alkyl acrylamides then; Be stirred to whole dissolvings, obtain the reaction mixture of monomer A;
The reaction mixture of the monomer A that (2) step (1) is obtained is with after sulfonated phenolic humic acid resin solution mixes; Add 1.0～3.0 parts of initiators down in 55～80 ℃; Remain on and carry out copolyreaction 4～6 hours under this temperature; Oven dry, pulverizing promptly obtain AMPS/AM/DMAM-sulfonated phenolic humic acid resin graft copolymer.
4. the preparation method of a kind of fluid loss additive for boring fluid according to claim 3; It is characterized in that: the described sulfonated phenolic humic acid of step (2) resin prepares by following method: 280～320 parts of water, 94 parts of phenol, 200～217 parts of formaldehyde, 95～110 parts of humates, 60.8～76 parts of pyrosulfites, 22～107 parts of anhydrous sodium vitriol are added in the reactor drum; Reacted 6～8 hours down in 120～165 ℃, obtain sulfonated phenolic humic acid resin.
5. the preparation method of a kind of fluid loss additive for boring fluid according to claim 4, it is characterized in that: described humate is potassium humate or sodium humate.
6. the preparation method of a kind of fluid loss additive for boring fluid according to claim 4, it is characterized in that: described pyrosulfite is potassium pyrosulfite or Sodium Pyrosulfite.
7. the preparation method of a kind of fluid loss additive for boring fluid according to claim 4, it is characterized in that: described anhydrous sodium vitriol is anhydrous potassium sulfite or sodium sulphite anhydrous 99.3.
8. the preparation method of a kind of fluid loss additive for boring fluid according to claim 3 is characterized in that: described initiator is a kind of in Potassium Persulphate, ammonium persulphate, the ydrogen peroxide 50.
9. a kind of drilling fluid according to claim 3 is with the preparation method of ultrahigh-temperature fluid loss agent; It is characterized in that: described alkyl acrylamide is N; N-DMAA, N, a kind of in N-diethylammonium acrylic amide, NSC 11448, the isobutyl-acrylic amide.
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|---|---|---|---|---|
| CN102965083A (en) * | 2012-11-12 | 2013-03-13 | 孟州市德葛净水材料有限公司 | Compound resin high-temperature-resistant anti-collapse water-loss reducing agent for drilling fluid |
| CN103725269A (en) * | 2013-12-29 | 2014-04-16 | 哈尔滨工业大学 | High temperature resistant humic acid grafting filtrate reducer for drilling fluid and preparation method thereof |
| CN103849361A (en) * | 2014-02-13 | 2014-06-11 | 克拉玛依友联实业有限责任公司 | High-temperature resistant anti-collapse blocking agent and preparation method thereof |
| CN104031621A (en) * | 2014-05-17 | 2014-09-10 | 青岛蓬勃石油技术服务有限公司 | Filtration reducing agent for drilling fluid and preparation method thereof |
| CN104610936A (en) * | 2014-12-31 | 2015-05-13 | 中国石油天然气集团公司 | Filtrate loss reducer for full oil-based drilling fluid, and preparation method of filtrate loss reducer |
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| CN109321216A (en) * | 2018-12-07 | 2019-02-12 | 中科宝辰(北京)科技有限公司 | A kind of high-temperature resistant water-based filtrate reducer for drilling fluid and preparation method thereof |
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| CN110607169A (en) * | 2019-09-28 | 2019-12-24 | 中国石油集团川庆钻探工程有限公司钻井液技术服务公司 | Salt-resistant high-temperature-resistant filtrate reducer and preparation method thereof |
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| CN111139042A (en) * | 2018-11-02 | 2020-05-12 | 中国石油化工股份有限公司 | Resin modified polymer fluid loss agent based on degradation and preparation method thereof |
| CN111139039A (en) * | 2018-11-02 | 2020-05-12 | 中国石油化工股份有限公司 | Sulfonated phenolic resin graft modified polymer filtrate reducer and preparation method thereof |
| CN113265028A (en) * | 2021-07-21 | 2021-08-17 | 山东诺尔生物科技有限公司 | Sulfonated phenolic resin modified polyacrylamide and preparation method thereof |
| CN113336906A (en) * | 2021-06-09 | 2021-09-03 | 巴州三元石油助剂有限公司 | Sulfomethyl phenolic resin for drilling fluid and preparation method thereof |
| CN116355599A (en) * | 2023-06-01 | 2023-06-30 | 四川巨正科技有限公司 | Environment-friendly lignite resin for drilling fluid and preparation method thereof |
| CN118702869A (en) * | 2024-08-27 | 2024-09-27 | 中石化西南石油工程有限公司 | Preparation method of sulfonated phenolic humic acid resin-acrylic acid graft copolymer for drilling fluid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4288582A (en) * | 1978-09-27 | 1981-09-08 | Milchem Incorporated | Aqueous drilling fluid additive, composition and process |
| CN85105917A (en) * | 1985-07-29 | 1986-07-09 | 华东石油学院 | The high temperature resistant salt resistant drilling of ultra deep well |
-
2012
- 2012-07-20 CN CN201210254900.XA patent/CN102766240B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4288582A (en) * | 1978-09-27 | 1981-09-08 | Milchem Incorporated | Aqueous drilling fluid additive, composition and process |
| CN85105917A (en) * | 1985-07-29 | 1986-07-09 | 华东石油学院 | The high temperature resistant salt resistant drilling of ultra deep well |
Non-Patent Citations (3)
| Title |
|---|
| 王中华: "AM/AMPS/腐植酸接枝共聚物的合成", 《化工时刊》 * |
| 王中华: "AMPS/AM/DMAM共聚物钻井液降滤失剂的合成", 《天津化工》 * |
| 肖玉颖，等: "改性磺化酚醛树脂性能的室内评价", 《钻井液与完井液》 * |
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| CN113265028A (en) * | 2021-07-21 | 2021-08-17 | 山东诺尔生物科技有限公司 | Sulfonated phenolic resin modified polyacrylamide and preparation method thereof |
| CN113265028B (en) * | 2021-07-21 | 2021-09-24 | 山东诺尔生物科技有限公司 | Sulfonated phenolic resin modified polyacrylamide and preparation method thereof |
| CN116355599A (en) * | 2023-06-01 | 2023-06-30 | 四川巨正科技有限公司 | Environment-friendly lignite resin for drilling fluid and preparation method thereof |
| CN116355599B (en) * | 2023-06-01 | 2023-08-08 | 四川巨正科技有限公司 | Environment-friendly lignite resin for drilling fluid and preparation method thereof |
| CN118702869A (en) * | 2024-08-27 | 2024-09-27 | 中石化西南石油工程有限公司 | Preparation method of sulfonated phenolic humic acid resin-acrylic acid graft copolymer for drilling fluid |
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