CN101812291A - Sticky stable acid liquor - Google Patents
Sticky stable acid liquor Download PDFInfo
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- CN101812291A CN101812291A CN 201010156483 CN201010156483A CN101812291A CN 101812291 A CN101812291 A CN 101812291A CN 201010156483 CN201010156483 CN 201010156483 CN 201010156483 A CN201010156483 A CN 201010156483A CN 101812291 A CN101812291 A CN 101812291A
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Abstract
The invention discloses sticky stable acid liquor. The sticky stable acid liquor comprises the following components in part by weight: 4 to 10 parts of compound retarding acid liquor, 0.5 to 2 parts of condition consolidation agent, 1 to 3 parts of metal inhibiter, 0.2 to 1 part of thickening agent and the balance of water. A method for preparing the sticky stable acid liquor comprises the following steps of: adding the 4 to 10 parts of the compound retarding acid liquor, the 0.5 to 2 parts of the condition consolidation agent, the 1 to 3 parts of the metal inhibiter, the 0.2 to 1 part of the thickening agent into the balance of the water, namely slowly adding the compound retarding acid liquor; stirring the mixture for 5 to 10 minutes at a rotating speed of between 500 and 1,000 rpm; and adding the thickening agent into the mixture; and stirring the mixture for 60 to 120 minutes at the rotating speed of between 500 and 1,000 rpm until prepared solution is uniformly mixed completely. The sticky stable acid liquor has the characteristics of synchronously acidifying, packing and preventing sand, preventing the fine particles from moving to block an oil layer in subsequent production process, along with good effect on preventing stratum from collapsing, large acidifying diameter, uniform acidifying and packing, low cost, stable in-situ consolidation of fine particles and skeleton sand, and the like, so the sticky stable acid liquor is widely applied to oil extraction process in oil production.
Description
One, technical field
The present invention relates to acidification of oil gas well, the used working fluid of filling anti-sand technology in the process for petroleum recovery, particularly a kind of sticky stable acid liquor.
Two, background technology
In the oil-field development, at siltstone and fine sand reservoir, mainly take the technology of first acidifying, back sand control to raise gradually to solve oil gas well clay mineral and shale index, easily stop up oil reservoir, the problem that causes the oil gas well production rate to descend, but it exists following shortcoming or deficiency: 1. acidifying and sand control proceed step by step, and acidifying easily makes the reservoir load bearing solids cave in; 2. the clay mineral obstruction oil reservoir of easily migrating after the acidifying causes follow-up output to descend; 3. the acidifying radius can not effectively enlarge, and efficient is low, cost of development is high.
Three, summary of the invention
The purpose of this invention is to provide a kind of sticky stable acid liquor, adopting sticky stable acid liquor is sand-carrying agent, integrates acidifying, filling anti-sand.Adopt composite retarded acid liquid, condition solidifying agent, metal inhibitor, thickening material formulated in combination, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.
Sticky stable acid liquor of the present invention, component and proportioning are as follows, and its proportioning is a weight part:
Composite retarded acid liquid 4-10 condition solidifying agent 0.5-2
Metal inhibitor 1-3 thickening material 0.2-1
Surplus is a water.
Wherein, described composite retarded acid liquid by hydrochloric acid stoste, fluoroboric acid stoste, acetate stoste is composite forms, its mass concentration proportioning is 3-5: 1.5-2.5: 0.5-1.5.Described condition solidifying agent is that about 350,000 polyisobutene is formed its mass concentration proportioning 0.5-1: 3-5: 2.5-4 by polyacrylamide, the molecular weight of Tiorco 677, molecular weight 200-500 ten thousand.Described metal inhibitor by Propiophenone, quadrol, formaldehyde, propiolic alcohol, potassiumiodide, hydrochloric acid is composite forms, its proportioning is 2.5-4: 3-4: 1.5-2: 0.5-1.5: 1-2.5: 0.5-1.5.Described thickening material is the wherein a kind of of guanidine glue, hydroxypropyl guanidine glue, non-ionic polyacrylamide, hydroxypropyl sesbania gum, Natvosol, xanthan gum or several mixture.
The compound method of sticky stable acid liquor of the present invention is: with proportioning is that condition solidifying agent, the metal inhibitor of 1-3 part, 0.2-1 part thickening material of composite retarded acid liquid, 0.5-2 part of weight part 4-10 part adds in the excess water, composite retarded acid liquid slowly adds, under the stirring velocity that per minute 500-1000 changes, stirred 5-10 minute, add thickening material then, under the stirring velocity that per minute 500-1000 changes, stirred 60-120 minute, treat that institute joins till solution mixes fully.
Wherein, the preparation method of described metal inhibitor is: adding proportioning in reactor is Propiophenone, quadrol, formaldehyde, propiolic alcohol, potassiumiodide, the hydrochloric acid of 2.5-4: 3-4: 1.5-2: 0.5-1.5: 1-2.5: 0.5-1.5, add quadrol, propiolic alcohol, potassiumiodide earlier, dripping hydrochloric acid is regulated the pH value to 3-5 under the stirring velocity that per minute 500-1000 changes, add formaldehyde and Propiophenone then, be heated to 70-80 ℃, back flow reaction 18-24 hour, be cooled to 40-50 ℃, promptly obtain metal inhibitor of the present invention.
The performance index of sticky stable acid liquor of the present invention are: viscosity: 40-80mPa.s; The highest sand ratio of taking: 50%; To the clay dissolution rate:＞20%; Maximum operation (service) temperature: 120 ℃; To Corrosion Of Steel rate:＜1g/m2.h; To quartz sand corrosion rate:＜2%.
The present invention and prior art relatively have following advantage:
1, easy to use, can carry out synchronously acidifying, filling anti-sand, enlarge acidifying, filling radius, improve acidifying, sand controlling result;
2, realize even acidifying, filling, solve inhomogeneous formation acidifying, the uneven difficult problem of filling;
3, realize the in-situ consolidation of particulate and load bearing solids is stablized, avoid fine migration obstruction oil reservoir in the subsequent production process;
4, the formation skeleton sand after the gravel support acidifying prevents formation collapse;
5, shorten construction period, saving construction cost.
Five, embodiment
A kind of sticky stable acid liquor, component and proportioning are as follows, and its proportioning is a weight part:
Composite retarded acid liquid 4-10 condition solidifying agent 0.5-2
Metal inhibitor 1-3 thickening material 0.2-1
Surplus is a water.
Composite retarded acid liquid by hydrochloric acid stoste, fluoroboric acid stoste, acetate stoste is composite forms, its mass concentration proportioning is 3-5: 1.5-2.5: 0.5-1.5.The condition solidifying agent is that about 350,000 polyisobutene is formed its mass concentration proportioning 0.5-1: 3-5: 2.5-4 by polyacrylamide, the molecular weight of Tiorco 677, molecular weight 200-500 ten thousand.Metal inhibitor by Propiophenone, quadrol, formaldehyde, propiolic alcohol, potassiumiodide, hydrochloric acid is composite forms, its proportioning is 2.5-4: 3-4: 1.5-2: 0.5-1.5: 1-2.5: 0.5-1.5.Thickening material is the wherein a kind of of following compound guanidine glue, hydroxypropyl guanidine glue, non-ionic polyacrylamide, hydroxypropyl sesbania gum, Natvosol, xanthan gum or several mixture.
The compound method of sticky stable acid liquor of the present invention, comprise with proportioning being that condition solidifying agent, the metal inhibitor of 1-3 part, 0.2-1 part thickening material of composite retarded acid liquid, 0.5-2 part of weight part 4-10 part adds in the excess water, composite retarded acid liquid slowly adds, under the stirring velocity that per minute 500-1000 changes, stirred 10 minutes, add thickening material then, under the stirring velocity that per minute 500-1000 changes, stirred 60-120 minute, treat that institute joins till solution mixes fully.
The preparation process of metal inhibitor is: adding proportioning in reactor is Propiophenone, quadrol, formaldehyde, propiolic alcohol, potassiumiodide, the hydrochloric acid of 2.5-4: 3-4: 1.5-2: 0.5-1.5: 1-2.5: 0.5-1.5, at first add quadrol, propiolic alcohol, potassiumiodide, dripping hydrochloric acid is regulated the pH value to 3-5 under the stirring velocity that per minute 500-1000 changes, add formaldehyde and Propiophenone then, be heated to 70-80 ℃, back flow reaction 18-24 hour, be cooled to 40-50 ℃, promptly obtain metal inhibitor of the present invention.
Provide specific embodiment below the present invention:
Embodiment one
0.5 part of condition solidifying agent and 1 part of metal inhibitor are joined in 94.3 parts of water, slowly add 4 parts of composite retarded acid liquid then, under the rotating speed that per minute 500 changes, stirred 5 minutes; Add 0.2 part of thickening material then, after stirring 100 minutes under the rotating speed that per minute 500 changes, treat that acid solution mixes fully.The clay dissolution rate of this acid solution is 20%, and viscosity is 40mPa.s.
The composite retarded acid liquid making method is: with the ratio composite mixing in acid-resistant container in 3: 1.5: 0.5 of hydrochloric acid stoste, fluoroboric acid stoste, acetate stoste, the speed of changeing with per minute 100 stirred 5 minutes, treated that acid solution was stablized after 20 minutes to use.
The compound method of condition solidifying agent is: be about 350,000 polyisobutene with polyacrylamide, the molecular weight of Tiorco 677, molecular weight 2,000,000 with 0.5: 3: 2.5 mixed, the speed of changeing with per minute 100 stirred 5 minutes, and the condition solidifying agent for the treatment of is stablized use after 20 minutes.
The compound method of metal inhibitor is, with each component with the weight part proportioning: Propiophenone, quadrol, formaldehyde, propiolic alcohol, potassiumiodide, hydrochloric acid=2.5: 3: 1.5: 0.5: 1: 0.5.In reactor, add quadrol, propiolic alcohol, potassiumiodide, under the stirring velocity that per minute 500 changes, stir and dripping hydrochloric acid adjusting pH value to 3, add formaldehyde and Propiophenone then, be heated to 70 ℃, back flow reaction 18h is cooled to 30 ℃, promptly obtains the present invention's inhibiter.Viscosifying agent is the mixture of guanidine glue or guanidine glue, hydroxypropyl guanidine glue.
Embodiment two
1 part of condition solidifying agent and 2 parts of metal inhibitors are joined in 89.5 parts of water, slowly add 8 parts of composite retarded acid liquid then, under the rotating speed that per minute 700 changes, stirred 7 minutes; Add 0.5 part of viscosifying agent then, under the rotating speed that per minute 700 changes, stirred 120 minutes, treat that acid solution mixes fully.The clay dissolution rate of this acid solution is 25%, and viscosity is 54mPa.s.
The composite retarded acid liquid making method is: with the ratio composite mixing in acid-resistant container in 4: 2: 1 of hydrochloric acid stoste, fluoroboric acid stoste, acetate stoste, the speed of changeing with per minute 700 stirred 8 minutes, treated that acid solution was stablized after 25 minutes to use.
The compound method of condition solidifying agent is: be about 350,000 polyisobutene with polyacrylamide, the molecular weight of Tiorco 677, molecular weight 200-500 ten thousand with 0.8: 4: 3 mixed, the speed of changeing with per minute 700 stirred 8 minutes, and the condition solidifying agent for the treatment of is stablized use after 25 minutes.
The compound method of metal inhibitor is, with proportioning be: Propiophenone: quadrol: formaldehyde: propiolic alcohol: potassiumiodide: hydrochloric acid=3: 3.5: 1.8: 1: 2: 1 above-mentioned substance, at first in reactor, add quadrol, propiolic alcohol, potassiumiodide, under the stirring velocity that per minute 700 changes, stir and dripping hydrochloric acid adjusting pH value to 4, add formaldehyde and Propiophenone then, be heated to 75 ℃, back flow reaction 21h, be cooled to 40 ℃, promptly obtain the present invention's inhibiter.Viscosifying agent can be selected the wherein a kind of of guanidine glue, hydroxypropyl guanidine glue, non-ionic polyacrylamide, hydroxypropyl sesbania gum, Natvosol, xanthan gum or several mixture.
Embodiment three
2 parts of condition solidifying agents and 3 parts of metal inhibitors are joined in 84 parts of water, slowly add 10 parts of composite retarded acid liquid then, under the rotating speed that per minute 1000 changes, stirred 10 minutes; Add 1 part of viscosifying agent then, after stirring 150 minutes under the rotating speed that per minute 1000 changes, treat that acid solution mixes fully.The clay dissolution rate of this acid solution is 31%, and viscosity is 80mPa.s.
The composite retarded acid liquid making method is: with the ratio composite mixing in acid-resistant container in 5: 2.5: 1.5 of hydrochloric acid stoste, fluoroboric acid stoste, acetate stoste, the speed of changeing with per minute 500 stirred 10 minutes, treated that acid solution was stablized after 30 minutes to use.
The compound method of condition solidifying agent is: be about 350,000 polyisobutene with polyacrylamide, the molecular weight of Tiorco 677, molecular weight 200-500 ten thousand with 1: 5: 4 mixed, under the speed with per minute 1000 commentaries on classics, stirred 10 minutes, the condition solidifying agent for the treatment of is stablized use after 30 minutes.
The compound method of metal inhibitor is, with proportioning be: Propiophenone, quadrol, formaldehyde, propiolic alcohol, potassiumiodide, hydrochloric acid=4: 4: 2: 1.5: 2.5: 1.5 above-mentioned substance is in reactor, at first add quadrol, propiolic alcohol, potassiumiodide, under the stirring velocity that per minute 1000 changes, stir and dripping hydrochloric acid adjusting pH value to 5, add formaldehyde and Propiophenone then, be heated to 80 ℃, back flow reaction 24h, be cooled to 50 ℃, promptly obtain inhibiter of the present invention.
Sticky stable acid liquor of the present invention is adapted to the aboveground application of the oil gas of stratum powder fine content between 5-40%.
Press the sticky stable acid liquor of the present invention of specific embodiment preparation, its performance index are:
Viscosity 40-80mPa.s; The highest sand of taking is than 50%; 120 ℃ of maximum operation (service) temperatures; To clay dissolution rate＞20%; To Corrosion Of Steel rate＜1g/m
2.h; To quartz sand corrosion rate＜2%.Reached the requirement of its performance index.
Claims (7)
1. sticky stable acid liquor, component and proportioning are as follows, and its proportioning is a weight part:
Composite retarded acid liquid 4-10 condition solidifying agent 0.5-2
Metal inhibitor 1-3 thickening material 0.2-1
Surplus is a water.
2. sticky stable acid liquor according to claim 1, it is characterized in that described composite retarded acid liquid by hydrochloric acid stoste, fluoroboric acid stoste, acetate stoste is composite forms, its mass concentration proportioning is 3-5: 1.5-2.5: 0.5-1.5.
3. sticky stable acid liquor according to claim 1, it is characterized in that described condition solidifying agent is that about 350,000 polyisobutene is formed by polyacrylamide, the molecular weight of Tiorco 677, molecular weight 200-500 ten thousand, its mass concentration proportioning is 0.5-1: 3-5: 2.5-4.
4. sticky stable acid liquor according to claim 1, it is characterized in that described metal inhibitor by Propiophenone, quadrol, formaldehyde, propiolic alcohol, potassiumiodide, hydrochloric acid is composite forms, its proportioning is 2.5-4: 3-4: 1.5-2: 0.5-1.5: 1-2.5: 0.5-1.5.
5. sour filling sticky stable acid liquor according to claim 1 is characterized in that described thickening material is the wherein a kind of of following compound guanidine glue, hydroxypropyl guanidine glue, non-ionic polyacrylamide, hydroxypropyl sesbania gum, Natvosol, xanthan gum or several mixture.
6. the compound method of a sticky stable acid liquor, it is characterized in that with proportioning being that condition solidifying agent, the metal inhibitor of 1-3 part, 0.2-1 part thickening material of composite retarded acid liquid, 0.5-2 part of weight part 4-10 part adds in the excess water, composite retarded acid liquid slowly adds, under the speed that per minute 500-1000 changes, stirred 5-10 minute, add thickening material then, the speed that continues to change with per minute 500-1000 stirred 60-120 minute, treated that institute joins till solution mixes fully.
7. the compound method of sticky stable acid liquor according to claim 6, the preparation process that it is characterized in that described metal inhibitor is: adding proportioning in reactor is the Propiophenone of 2.5-4: 3-4: 1.5-2: 0.5-1.5: 1-2.5: 0.5-1.5, quadrol, formaldehyde, propiolic alcohol, potassiumiodide, hydrochloric acid, add quadrol earlier, propiolic alcohol, potassiumiodide, dripping hydrochloric acid under the stirring velocity that per minute 500-1000 changes, regulate the pH value to 3-5, add formaldehyde and Propiophenone then, be heated to 70-80 ℃, back flow reaction 18-24h, be cooled to 40-50 ℃, promptly obtain metal inhibitor of the present invention.
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| CN 201010156483 CN101812291B (en) | 2010-04-22 | 2010-04-22 | Sticky stable acid liquor |
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| CN 201010156483 CN101812291B (en) | 2010-04-22 | 2010-04-22 | Sticky stable acid liquor |
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| CN101812291B CN101812291B (en) | 2012-12-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194202A (en) * | 2013-04-01 | 2013-07-10 | 西南石油大学 | Adsorptive acid liquor retarding admixture and preparation method thereof |
| CN103756663A (en) * | 2013-12-17 | 2014-04-30 | 常州大学 | High performance acidizing fracturing fluid and preparation method thereof |
| CN104109528B (en) * | 2013-08-13 | 2017-02-08 | 中国石油化工股份有限公司 | Acidifying liquid capable of sand stabilization and plug removal, and preparation method thereof |
| CN116333717A (en) * | 2021-12-24 | 2023-06-27 | 中国石油天然气股份有限公司 | Volcanic reservoir acidizing high-viscosity retarded acidizing agent, preparation method and application |
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| US20060183646A1 (en) * | 2005-02-15 | 2006-08-17 | Halliburton Energy Services, Inc. | Viscoelastic surfactant fluids and associated methods |
| CN1877079A (en) * | 2006-06-30 | 2006-12-13 | 四机赛瓦石油钻采设备有限公司 | Mixing and preparing control method for mixed solution for fracturing, acidizing and sand control of oil field |
| CN101161762A (en) * | 2007-11-27 | 2008-04-16 | 西安石油大学 | Acid for corroding sandstone |
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2010
- 2010-04-22 CN CN 201010156483 patent/CN101812291B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060183646A1 (en) * | 2005-02-15 | 2006-08-17 | Halliburton Energy Services, Inc. | Viscoelastic surfactant fluids and associated methods |
| CN1877079A (en) * | 2006-06-30 | 2006-12-13 | 四机赛瓦石油钻采设备有限公司 | Mixing and preparing control method for mixed solution for fracturing, acidizing and sand control of oil field |
| CN101161762A (en) * | 2007-11-27 | 2008-04-16 | 西安石油大学 | Acid for corroding sandstone |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194202A (en) * | 2013-04-01 | 2013-07-10 | 西南石油大学 | Adsorptive acid liquor retarding admixture and preparation method thereof |
| CN103194202B (en) * | 2013-04-01 | 2014-12-10 | 西南石油大学 | Adsorptive acid liquor retarding admixture and preparation method thereof |
| CN104109528B (en) * | 2013-08-13 | 2017-02-08 | 中国石油化工股份有限公司 | Acidifying liquid capable of sand stabilization and plug removal, and preparation method thereof |
| CN103756663A (en) * | 2013-12-17 | 2014-04-30 | 常州大学 | High performance acidizing fracturing fluid and preparation method thereof |
| CN116333717A (en) * | 2021-12-24 | 2023-06-27 | 中国石油天然气股份有限公司 | Volcanic reservoir acidizing high-viscosity retarded acidizing agent, preparation method and application |
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| CN101812291B (en) | 2012-12-26 |
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