CN103396770B - A kind of multifunctional drilling fluid additive - Google Patents
A kind of multifunctional drilling fluid additive Download PDFInfo
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- CN103396770B CN103396770B CN201310297185.2A CN201310297185A CN103396770B CN 103396770 B CN103396770 B CN 103396770B CN 201310297185 A CN201310297185 A CN 201310297185A CN 103396770 B CN103396770 B CN 103396770B
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Abstract
A kind of multifunctional drilling fluid additive, it is made up of anionic cellulose sodium salt, Graphite Powder 99, potassium humate, Repone K, small cation, polyacrylonitrile hydrochlorate, Middle molecule polymkeric substance, synergistic agent, the production technique of described Middle molecule polymkeric substance is first mixed according to 55:45 part by weight by vinylformic acid and acrylamide, for subsequent use by forming mixture after distillation dehydration; Add respectively in the mixture the sodium sulfate of mixture weight 40% and the maleic anhydride of 60% carry out polyreaction grafting after and get final product.Described synergistic agent is made up of the raw material of following weight ratio: quadrol 20%, hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacts 4 hours and get final product after being mixed by above-mentioned raw materials at 80 DEG C of temperature.
Description
Technical field
the present invention relates to oil well drilling well raw material field, specifically relate to a kind of multifunctional drilling fluid additive.
Background technology
Petroleum needs to carry out drilling well exploitation, needs to use drilling fluid in drilling process, and drilling fluid is easily retrogradation at high temperature, and the chance water capacity is easily thinning, drilling well often can be caused normally to run, schedule delays.At the bottom of ground, deep layer is along with the increase temperature meeting constantly rising of drilling depth, the anti-highest temperature of drilling fluid that current China adopts is 180 DEG C, the drilling well requirement of high depth can not be met, carry out smoothly for making construction, various additive need be dropped into be in harmonious proportion, cause working efficiency low, constantly drop into a large amount of drilling fluid as normal need of work need be continued, cause raw material to use too much, produce great amount of cost.
Summary of the invention
For solving above-mentioned deficiency of the prior art, the invention provides a kind of multifunctional drilling fluid additive, coordinating drilling fluid to use and can effectively play high temperature resistant effect, the input simultaneously economized in raw materials.
For achieving the above object, the present invention is by the following technical solutions: a kind of multifunctional drilling fluid additive, it is mixed by the raw material of following weight part and forms: anionic cellulose sodium salt 13-17 part, Graphite Powder 99 4-6 part, potassium humate 10-14 part, Repone K 9-11 part, small cation 5-6 part, polyacrylonitrile hydrochlorate 18-22 part, Middle molecule polymkeric substance 25-35 part, synergistic agent 2-3 part.
The production technique of described Middle molecule polymkeric substance is first mixed according to 55:45 part by weight by vinylformic acid and acrylamide, for subsequent use by forming mixture after distillation dehydration; Add respectively in the mixture the sodium sulfate of mixture weight 40% and the maleic anhydride of 60% carry out polyreaction grafting after and get final product.
Described synergistic agent is made up of the raw material of following weight ratio: quadrol 20%, hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacts 4 hours and get final product after being mixed by above-mentioned raw materials at 80 DEG C of temperature.
Beneficial effect of the present invention is:
1, convenient and swift, saving labor, only need adding the adjustment that auxiliary agent can realize drilling fluid in drilling fluid, without the need to adding other additive.
2, auxiliary agent of the present invention has good filtrate reducing, anti-collapse and lubricant effect, makes drilling fluid have better rheological, contributes to improving drilling speed, and prevent bit freezing, mud cake is thin and tough and tensile, hole diameter rule.
3, can be used for soil layer and the rock stratum exploitation in various area, meet shallow well, deep-well, fresh water well, saline wells and all can reach desirable drilling well effect.
4, there is high temperature resistance, can temperature resistance more than 200 DEG C, meet the drilling condition of high temperature high depth.
5, economize in raw materials use, decreases the input amount of drilling fluid, can cost saving more than 30%.
Embodiment
The present invention will be further described with experiment effect contrast in conjunction with the embodiments for lower surface.
Embodiment 1
A kind of multifunctional drilling fluid additive, it is mixed by the raw material of following weight part and forms: anionic cellulose sodium salt 13 parts, Graphite Powder 99 4 parts, potassium humate 10 parts, 9 parts, Repone K, small cation 5 parts, polyacrylonitrile hydrochlorate 18 parts, 25 parts, Middle molecule polymkeric substance, synergistic agent 2 parts.
The production technique of described Middle molecule polymkeric substance is first mixed according to 55:45 part by weight by vinylformic acid and acrylamide, for subsequent use by forming mixture after distillation dehydration; Add respectively in the mixture the sodium sulfate of mixture weight 40% and the maleic anhydride of 60% carry out polyreaction grafting after and get final product.
Described synergistic agent is made up of the raw material of following weight ratio: quadrol 20%, hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacts 4 hours and get final product after being mixed by above-mentioned raw materials at 80 DEG C of temperature.
Embodiment 2
A kind of multifunctional drilling fluid additive, it is mixed by the raw material of following weight part and forms: anionic cellulose sodium salt 17 parts, Graphite Powder 99 6 parts, potassium humate 14 parts, 11 parts, Repone K, small cation 6 parts, polyacrylonitrile hydrochlorate 22 parts, 35 parts, Middle molecule polymkeric substance, synergistic agent 3 parts.
The production technique of described Middle molecule polymkeric substance is first mixed according to 55:45 part by weight by vinylformic acid and acrylamide, for subsequent use by forming mixture after distillation dehydration; Add respectively in the mixture the sodium sulfate of mixture weight 40% and the maleic anhydride of 60% carry out polyreaction grafting after and get final product.
Described synergistic agent is made up of the raw material of following weight ratio: quadrol 20%, hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacts 4 hours and get final product after being mixed by above-mentioned raw materials at 80 DEG C of temperature.
Embodiment 3
A kind of multifunctional drilling fluid additive, it is mixed by the raw material of following weight part and forms: anionic cellulose sodium salt 15 parts, Graphite Powder 99 5 parts, potassium humate 12 parts, 10 parts, Repone K, small cation 5.5 parts, polyacrylonitrile hydrochlorate 20 parts, 30 parts, Middle molecule polymkeric substance, synergistic agent 2.5 parts.
The production technique of described Middle molecule polymkeric substance is first mixed according to 55:45 part by weight by vinylformic acid and acrylamide, for subsequent use by forming mixture after distillation dehydration; Add respectively in the mixture the sodium sulfate of mixture weight 40% and the maleic anhydride of 60% carry out polyreaction grafting after and get final product.
Described synergistic agent is made up of the raw material of following weight ratio: quadrol 20%, hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacts 4 hours and get final product after being mixed by above-mentioned raw materials at 80 DEG C of temperature.
Product performance detection experiment: add the drilling fluid under soda ash 1g, wilkinite 17.5g imitation fresh water environment in 350ml fresh water, after adding 20 points of weeks of drilling fluid additive 3.5g high-speed stirring of the present invention, its Performance Detection is as following table:
| Apparent viscosity | API filtration | Core recovery % | Mill resistance reduced rate % |
| 9 | 8 | 88 | 45 |
As seen from the above table, after adding auxiliary agent of the present invention in drilling fluid, its performance has better functional quality than typical well liquid.
Drilling fluid additive Preliminary Applications of the present invention is in on-site drilling, and the material-saving effect of different volume drilling depths and working efficiency are as following table:
As seen from the above table, use the drilling fluid containing auxiliary agent than typical well liquid, decrease the use of raw material, improve working efficiency.
Claims (1)
1. a multifunctional drilling fluid additive, it is mixed by the raw material of following weight part and forms: anionic cellulose sodium salt 13-17 part, Graphite Powder 99 4-6 part, potassium humate 10-14 part, Repone K 9-11 part, small cation 5-6 part, polyacrylonitrile hydrochlorate 18-22 part, Middle molecule polymkeric substance 25-35 part, synergistic agent 2-3 part, it is characterized in that: the production technique of described Middle molecule polymkeric substance is first mixed according to 55:45 part by weight by vinylformic acid and acrylamide, for subsequent use by forming mixture after distillation dehydration; Add respectively in the mixture the sodium sulfate of mixture weight 40% and the maleic anhydride of 60% carry out polyreaction grafting after and get final product; Described synergistic agent is made up of the raw material of following weight ratio: quadrol 20%, hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacts 4 hours and get final product after being mixed by above-mentioned raw materials at 80 DEG C of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310297185.2A CN103396770B (en) | 2013-07-16 | 2013-07-16 | A kind of multifunctional drilling fluid additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310297185.2A CN103396770B (en) | 2013-07-16 | 2013-07-16 | A kind of multifunctional drilling fluid additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103396770A CN103396770A (en) | 2013-11-20 |
| CN103396770B true CN103396770B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310297185.2A Expired - Fee Related CN103396770B (en) | 2013-07-16 | 2013-07-16 | A kind of multifunctional drilling fluid additive |
Country Status (1)
| Country | Link |
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| CN (1) | CN103396770B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103642466B (en) * | 2013-11-28 | 2016-03-30 | 蔡修枝 | A kind of anti-mud drum filtrate reducing additive for drilling fluid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3679001A (en) * | 1970-03-02 | 1972-07-25 | Gilman A Hill | Well drilling method |
| JPS60181187A (en) * | 1984-02-29 | 1985-09-14 | Toho Chem Ind Co Ltd | Adjustor for drilling mud |
| CN102676128A (en) * | 2012-05-29 | 2012-09-19 | 嵇玉海 | Special high temperature resistant drilling fluid additive |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1853685A4 (en) * | 2005-02-22 | 2011-11-30 | Mi Llc | Additive for reducing torque on a drill string |
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2013
- 2013-07-16 CN CN201310297185.2A patent/CN103396770B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3679001A (en) * | 1970-03-02 | 1972-07-25 | Gilman A Hill | Well drilling method |
| JPS60181187A (en) * | 1984-02-29 | 1985-09-14 | Toho Chem Ind Co Ltd | Adjustor for drilling mud |
| CN102676128A (en) * | 2012-05-29 | 2012-09-19 | 嵇玉海 | Special high temperature resistant drilling fluid additive |
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| CN103396770A (en) | 2013-11-20 |
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