CN1807543A - Fluid loss additive for boring fluid - Google Patents
Fluid loss additive for boring fluid Download PDFInfo
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- CN1807543A CN1807543A CN 200510133796 CN200510133796A CN1807543A CN 1807543 A CN1807543 A CN 1807543A CN 200510133796 CN200510133796 CN 200510133796 CN 200510133796 A CN200510133796 A CN 200510133796A CN 1807543 A CN1807543 A CN 1807543A
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- natvosol
- silicon oil
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Abstract
The invention relates to a fluid loss control agent for drilling fluid, which is prepared through reacting natural humic acid with sodium-hydroxide to obtain humic sodium salts, then carrying out reduction copolymerization with sulfonated asphalt, hydroxyethyl cellulose, polyacrylamide, water-soluble silicon oil AND methyl aldehyde.
Description
Technical field
The present invention relates to a kind of drilling well fluid loss agent
Background technology
Oil field welldrilling mud major ingredient be as soil and water, and various auxiliary chemicals additives.In continuous drilling process, the phenomenon that water infiltrates the stratum is called dehydration, and the unit time fluid loss is excessive, can bring a series of adverse consequencess: slump in, hole diameter dwindle and problem such as drilling fluid multiviscosisty, thereby cause the generation of serious accidents such as bit freezing.Fluid loss agent contains with clay adsorbing adsorption group and aquation group takes place; it can change the character of wall mud cake in the well: treatment agent is adsorbed on big clay particle surface and forms layer protecting film; trickle clay particle is adsorbed on the big treatment agent chain link; play protective colloid effect; until becoming closely knit mud cake; polar group of water molecules and chemical processing agent (aquation group) or non-polar group and clay particle form structural plane; water will be bound in the mud cake and can't pass through; make permeability reduction, reach and reduce in the drilling process water yield to the effect of stratum leak-off.
The water yield guarantees carrying out smoothly of well bore safety and drilling engineering to the stratum leak-off in the drilling process in order to reduce, and needs to add fluid loss agent.
Drilling well commonly used has with fluid loss agent:
Sodium carboxymethyl-cellulose and Polyanionic Cellulose class, versatility is good, and it is good to fall filtration effect, and salt tolerant is strong.But heatproof is low, has only 150 ℃.Usage quantity: 0.5%-1.5%.
Modified starch series: mainly contain pregelatinized starch, carboxymethyl starch, hydroxyethylamyle, versatility is good, and it is good to fall filtration effect, and salt tolerant is strong.But heatproof is low, has only 120 ℃-140 ℃.Usage quantity: 0.5%-1.5%.
The sulfonation class: have sulfonated lignin to mix with sulfonated-pheno-formoldehyde resin or copolymerization, the sulfomethylation brown coal mix with sulfonated-pheno-formoldehyde resin or copolymerization etc., it is good to fall filtration effect, and salt tolerant is strong, and temperature resistance is better.But usage quantity is big, the cost height.Usage quantity: 1%-3%, consumption are slightly high.
The humic acids salt: Sodium salts humic acids, potassium humate, humic acids ferrochrome, nitre are humate etc., and versatility is good, and temperature resistance is better.But it is general to fall filtration effect, and usage quantity is big, the cost height.Usage quantity: 1%-5%, consumption is higher.
Copolymer analog and polyacrylate: by monomer sodium acrylate, calcium acrylate, acrylamide, the band sulfonic group is different with the monomer that has the machine cation group forms, good combination property, temperature resistance is better.But to drilling fluid viscosity influential (thickening effect is arranged), be used for low solids fluid, production cost is higher, complex manufacturing.Usage quantity: 0.3%-1%.
At the problem that present drilling well exists with fluid loss agent, the present invention is in the process great deal of experimental, and it is few to develop a kind of use dosage, and drilling cost is low, and is pollution-free, the drilling well fluid loss agent that decomposes voluntarily in physical environment.
Summary of the invention
The objective of the invention is to, the drilling well fluid loss agent of development is to need the chemical auxiliary agent that adds in the oil drilling mud, be to generate the humic acids sodium salt, form with sulfonated gilsonite, Natvosol, polyacrylamide, water-soluble silicon oil and formaldehyde reduction copolymerization again by natural humic acid and sodium hydroxide reaction.This fluid loss agent has the versatility and the high thermal resistance of humic-acid kind fluid loss agent, and advantages such as the filtration reduction of sulfonation class and high molecular polymer class fluid loss agent is good are arranged again; The introducing of water-soluble silicon oil has increased the compactness of mud cake, the excellent leak-off water-based energy that falls, and falling leak-off does not increase drilling fluid viscosity again, and rheological is good, and the drilling efficiency height is specially adapted to the high solid phase drilling well of high-density; Temperature resistance is not less than 180 ℃, and good anti-salt, anticalcium performance can be used for the high temperature deep well drilling well; Compatibleness is good, has anti-collapse effect concurrently, can protect hydrocarbon zone effectively.The use dosage is few, and drilling cost is low, and is pollution-free, decomposes voluntarily in physical environment.
Drilling well fluid loss agent of the present invention, it is made up of humic acids, sodium hydroxide, sulfonated gilsonite, Natvosol, polyacrylamide, water-soluble silicon oil, formaldehyde raw material, through weak acid, alkali reaction, copolyreaction, drying, pulverizing, packing are made, be the radix weight ratio wherein with 5 tons of reactors, water: humic acids: sodium hydroxide: sulfonated gilsonite: Natvosol: polyacrylamide: water-soluble silicon oil: formaldehyde=10-12: 2-3: 0.6-0.65: 0.7-0.8: 0.1-0.2: 0.04-0.06: 0.05-0.07: 0.35-0.39.
The preparation method of fluid loss additive for boring fluid follows these steps to carry out:
A, weak acid, alkali reaction: with 5 tons of reactors is the radix weight ratio
With water: the ratio of humic acids: sodium hydroxide: sulfonated gilsonite: Natvosol: polyacrylamide: water-soluble silicon oil: formaldehyde=10-12: 2-3: 0.6-0.65: 0.7-0.8: 0.1-0.2: 0.04-0.06: 0.05-0.07: 0.35-0.39, water is added in the reactor, start stirring, slowly add sodium hydroxide and be stirred to dissolving, add humic acids again, be warming up to 80 ℃, 80 ℃-90 ℃ of controlled temperature, reaction 2-3h.
B, copolyreaction
Sulfonated gilsonite, Natvosol, polyacrylamide, water-soluble silicon oil are added respectively in the reactor, and 75 ℃-85 ℃ of controlled temperature make material homodisperse 1h, add formaldehyde again, are warming up to 80 ℃, 80 ℃-90 ℃ of controlled temperature, reaction 3-4h.
C, drying, pulverizing, packing get final product.
Description of drawings
Fig. 1 is a process flow sheet of the present invention
Embodiment
Embodiment 1
A, weak acid, alkali reaction: with 5 tons of reactors is radix weight ratio (weight ratio)
With water: humic acids: sodium hydroxide: sulfonated gilsonite: Natvosol: polyacrylamide: water-soluble silicon oil: the ratio of formaldehyde, water 10 is added in the reactor, start stirring, slowly add sodium hydroxide 0.6 and be stirred to dissolving, add humic acids 2 again, be warming up to 80 ℃, 80 ℃ of controlled temperature, reaction 2h.
B, copolyreaction
Sulfonated gilsonite 0.7, Natvosol 0.1, polyacrylamide 0.04, water-soluble silicon oil 0.05 are added respectively in the reactor, and 75 ℃ of controlled temperature make material homodisperse 1h, add formaldehyde 0.35 again, are warming up to 80 ℃, 80 ℃ of controlled temperature, reaction 3h.
C, dry water content are less than 15%, and pulverizing (passing through the standard sieve surplus of diameter 2.00mm less than 5%), packing get final product; Usage quantity is 0.5%-1.5%.
Embodiment 2
A, weak acid, alkali reaction: with 5 tons of reactors is radix (weight ratio)
With water: humic acids: sodium hydroxide: sulfonated gilsonite: Natvosol: polyacrylamide: water-soluble silicon oil: the ratio of formaldehyde, water 11 is added in the reactor, start stirring, slowly add sodium hydroxide 0.62 and be stirred to dissolving, add humic acids 2.5 again, be warming up to 80 ℃, 85 ℃ of controlled temperature, reaction 2.5h.
B, copolyreaction
Sulfonated gilsonite 0.75, Natvosol 0.15, polyacrylamide 0.05, water-soluble silicon oil 0.06 are added respectively in the reactor, and 80 ℃ of controlled temperature make material homodisperse 1h, add formaldehyde 0.36 again, be warming up to 80 ℃, 85 ℃ of controlled temperature, reaction 3.5h.
C, dry water content are less than 15%, and pulverizing (passing through the standard sieve surplus of diameter 2.00mm less than 5%), packing get final product; Usage quantity is 0.5%-1.5%.
Embodiment 3
A, weak acid, alkali reaction: with 5 tons of reactors is radix (weight ratio)
With water: humic acids: sodium hydroxide: sulfonated gilsonite: Natvosol: polyacrylamide: water-soluble silicon oil: the ratio of formaldehyde, water 12 is added in the reactor, start stirring, slowly add sodium hydroxide 0.62 and be stirred to dissolving, add humic acids 3 again, be warming up to 80 ℃, 90 ℃ of controlled temperature, reaction 3h.
B, copolyreaction
Sulfonated gilsonite 0.8, Natvosol 0.2, polyacrylamide 0.06, water-soluble silicon oil 0.07 are added respectively in the reactor, and 85 ℃ of controlled temperature make material homodisperse 1h, add formaldehyde 0.39 again, are warming up to 80 ℃, 90 ℃ of controlled temperature, reaction 4h.
C, dry water content are less than 15%, and pulverizing (passing through the standard sieve surplus of diameter 2.00mm less than 5%), packing get final product; Usage quantity is 0.5%-1.5%.
Embodiment 4
A, weak acid, alkali reaction: with 5 tons of reactors is radix (weight ratio)
With water: humic acids: sodium hydroxide: sulfonated gilsonite: Natvosol: polyacrylamide: water-soluble silicon oil: the ratio of formaldehyde, water 11.5 is added in the reactor, start stirring, slowly add sodium hydroxide 0.63 and be stirred to dissolving, add humic acids 2.8 again, be warming up to 80 ℃, 87 ℃ of controlled temperature, reaction 2h.
B, copolyreaction
Sulfonated gilsonite 0.78, Natvosol 0.17, polyacrylamide 0.055, water-soluble silicon oil 0.065 are added respectively in the reactor, and 78 ℃ of controlled temperature make material homodisperse 1h, add formaldehyde 0.37 again, be warming up to 80 ℃, 87 ℃ of controlled temperature, reaction 4h.
C, dry water content are less than 15%, and pulverizing (passing through the standard sieve surplus of diameter 2.00mm less than 5%), packing get final product; Usage quantity is 0.5%-1.5%.
Claims (2)
1, a kind of fluid loss additive for boring fluid, it is characterized in that it is made up of humic acids, sodium hydroxide, sulfonated gilsonite, Natvosol, polyacrylamide, water-soluble silicon oil, formaldehyde raw material, through weak acid, alkali reaction, copolyreaction, drying, pulverizing, packing are made, be the radix weight ratio wherein with 5 tons of reactors, water: humic acids: sodium hydroxide: sulfonated gilsonite: Natvosol: polyacrylamide: water-soluble silicon oil: formaldehyde=10-12: 2-3: 0.6-0.65: 0.7-0.8: 0.1-0.2: 0.04-0.06: 0.05-0.07: 0.35-0.39.
2, the preparation method of fluid loss additive for boring fluid according to claim 1 is characterized in that following these steps to carrying out:
A, weak acid, alkali reaction: with 5 tons of reactors is radix
With water: the ratio of humic acids: sodium hydroxide: sulfonated gilsonite: Natvosol: polyacrylamide: water-soluble silicon oil: formaldehyde=10-12: 2-3: 0.6-0.65: 0.7-0.8: 0.1-0.2: 0.04-0.06: 0.05-0.07: 0.35-0.39, water is added in the reactor, start stirring, slowly add sodium hydroxide and be stirred to dissolving, add humic acids again, be warming up to 80 ℃, 80 ℃-90 ℃ of controlled temperature, reaction 2-3h.
B, copolyreaction
Sulfonated gilsonite, Natvosol, polyacrylamide, water-soluble silicon oil are added respectively in the reactor, and 75 ℃-85 ℃ of controlled temperature make material homodisperse 1h, add formaldehyde again, are warming up to 80 ℃, 80 ℃-90 ℃ of controlled temperature, reaction 3-4h.
C, drying, pulverizing, packing get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101337969A CN100338169C (en) | 2005-12-22 | 2005-12-22 | Fluid loss additive for boring fluid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101337969A CN100338169C (en) | 2005-12-22 | 2005-12-22 | Fluid loss additive for boring fluid |
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| CN1807543A true CN1807543A (en) | 2006-07-26 |
| CN100338169C CN100338169C (en) | 2007-09-19 |
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| CNB2005101337969A Expired - Fee Related CN100338169C (en) | 2005-12-22 | 2005-12-22 | Fluid loss additive for boring fluid |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851491A (en) * | 2009-10-20 | 2010-10-06 | 新疆德蓝股份有限公司 | Method for preparing fluid loss additive for drilling fluid |
| CN102212345A (en) * | 2011-04-21 | 2011-10-12 | 中国石油集团渤海钻探工程有限公司 | Formula and preparation method of 180 DEG C temperature and salt resistant drilling fluid with strong inhibition and high density |
| CN101311242B (en) * | 2007-05-24 | 2012-02-15 | 西部钻探克拉玛依钻井工艺研究院 | Hydroxy-acid salt drilling fluid |
| CN103509538A (en) * | 2013-10-14 | 2014-01-15 | 辉县市日新化工厂 | Novel polymer while-drilling lost circulation additive and preparation method thereof |
| CN104403057A (en) * | 2014-11-21 | 2015-03-11 | 北京培康佳业技术发展有限公司 | Filtrate reducer used for drilling fluids as well as preparation method and application thereof |
| CN108822813A (en) * | 2018-08-08 | 2018-11-16 | 天津渤海中联石油科技有限公司 | A kind of organic lignite method of purification |
| CN109852353A (en) * | 2019-01-22 | 2019-06-07 | 北京宏勤石油助剂有限公司 | A kind of drilling fluid heat resisting fluid loss reducing agent and preparation method thereof |
| CN110591667A (en) * | 2019-09-29 | 2019-12-20 | 重庆威能钻井助剂有限公司 | High-temperature-resistant fluid loss additive for drilling fluid and preparation method thereof |
| CN110846004A (en) * | 2019-11-27 | 2020-02-28 | 北京大德广源石油技术服务有限公司 | High-temperature water-based drilling fluid and preparation method thereof |
| CN111253921A (en) * | 2020-03-23 | 2020-06-09 | 中石化石油工程技术服务有限公司 | Filtrate reducer, preparation method thereof, water-based drilling fluid and application thereof |
| CN115403786A (en) * | 2021-05-28 | 2022-11-29 | 中石化石油工程技术服务有限公司 | Humic acid shale inhibitor and preparation method and application thereof |
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| CN101665682B (en) * | 2008-09-01 | 2013-02-13 | 西部钻探克拉玛依钻井工艺研究院 | Modified methyl glucoside treating agent for drill fluid |
Family Cites Families (6)
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| CN1048999C (en) * | 1994-11-01 | 2000-02-02 | 中国科学院山西煤炭化学研究所 | Filtering-loss reducing agent of humic resin and its prepn |
| US5958845A (en) * | 1995-04-17 | 1999-09-28 | Union Oil Company Of California | Non-toxic, inexpensive synthetic drilling fluid |
| AU2586497A (en) * | 1996-03-22 | 1997-10-10 | Exxon Research And Engineering Company | High performance environmentally friendly drilling fluids |
| CN1084781C (en) * | 1999-06-03 | 2002-05-15 | 中国科学院山西煤炭化学研究所 | Leonardite resin brine type filter loss reduction agent and method for prep. same |
| CN1237144C (en) * | 2004-04-14 | 2006-01-18 | 郭亮 | Fluid loss additive of drilling fluid in use for oil field and preparation method |
| CN1233782C (en) * | 2004-04-14 | 2005-12-28 | 郭亮 | Fluid loss additive in use for drilling fluid in oil field |
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2005
- 2005-12-22 CN CNB2005101337969A patent/CN100338169C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311242B (en) * | 2007-05-24 | 2012-02-15 | 西部钻探克拉玛依钻井工艺研究院 | Hydroxy-acid salt drilling fluid |
| CN101851491A (en) * | 2009-10-20 | 2010-10-06 | 新疆德蓝股份有限公司 | Method for preparing fluid loss additive for drilling fluid |
| CN101851491B (en) * | 2009-10-20 | 2013-04-17 | 新疆德蓝股份有限公司 | Method for preparing fluid loss additive for drilling fluid |
| CN102212345A (en) * | 2011-04-21 | 2011-10-12 | 中国石油集团渤海钻探工程有限公司 | Formula and preparation method of 180 DEG C temperature and salt resistant drilling fluid with strong inhibition and high density |
| CN103509538A (en) * | 2013-10-14 | 2014-01-15 | 辉县市日新化工厂 | Novel polymer while-drilling lost circulation additive and preparation method thereof |
| CN104403057A (en) * | 2014-11-21 | 2015-03-11 | 北京培康佳业技术发展有限公司 | Filtrate reducer used for drilling fluids as well as preparation method and application thereof |
| CN108822813A (en) * | 2018-08-08 | 2018-11-16 | 天津渤海中联石油科技有限公司 | A kind of organic lignite method of purification |
| CN109852353B (en) * | 2019-01-22 | 2021-03-16 | 北京宏勤石油助剂有限公司 | High-temperature-resistant fluid loss additive for drilling fluid and preparation method thereof |
| CN109852353A (en) * | 2019-01-22 | 2019-06-07 | 北京宏勤石油助剂有限公司 | A kind of drilling fluid heat resisting fluid loss reducing agent and preparation method thereof |
| CN110591667A (en) * | 2019-09-29 | 2019-12-20 | 重庆威能钻井助剂有限公司 | High-temperature-resistant fluid loss additive for drilling fluid and preparation method thereof |
| CN110591667B (en) * | 2019-09-29 | 2021-07-20 | 重庆威能钻井助剂有限公司 | High-temperature-resistant fluid loss additive for drilling fluid and preparation method thereof |
| CN110846004A (en) * | 2019-11-27 | 2020-02-28 | 北京大德广源石油技术服务有限公司 | High-temperature water-based drilling fluid and preparation method thereof |
| CN110846004B (en) * | 2019-11-27 | 2020-07-28 | 北京大德广源石油技术服务有限公司 | High-temperature water-based drilling fluid and preparation method thereof |
| CN111253921A (en) * | 2020-03-23 | 2020-06-09 | 中石化石油工程技术服务有限公司 | Filtrate reducer, preparation method thereof, water-based drilling fluid and application thereof |
| CN111253921B (en) * | 2020-03-23 | 2022-03-08 | 中石化石油工程技术服务有限公司 | Filtrate reducer, preparation method thereof, water-based drilling fluid and application thereof |
| CN115403786A (en) * | 2021-05-28 | 2022-11-29 | 中石化石油工程技术服务有限公司 | Humic acid shale inhibitor and preparation method and application thereof |
| CN115403786B (en) * | 2021-05-28 | 2023-09-19 | 中石化石油工程技术服务有限公司 | Humic acid shale inhibitor and preparation method and application thereof |
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| CN100338169C (en) | 2007-09-19 |
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