CN103396770A - Multifunctional accessory ingredient of drilling fluid - Google Patents
Multifunctional accessory ingredient of drilling fluid Download PDFInfo
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- CN103396770A CN103396770A CN2013102971852A CN201310297185A CN103396770A CN 103396770 A CN103396770 A CN 103396770A CN 2013102971852 A CN2013102971852 A CN 2013102971852A CN 201310297185 A CN201310297185 A CN 201310297185A CN 103396770 A CN103396770 A CN 103396770A
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Abstract
The invention discloses a multifunctional accessory ingredient of a drilling fluid. The multifunctional accessory ingredient is composed of anionic cellulose sodium salt, graphite powder, potassium humate, potassium chloride, small cations, polyacrylonitrile salt, a middle-molecular polymer and a synergist, wherein the production process of the middle-molecular polymer comprises the following steps of: firstly, mixing acrylic acid and acrylic amide according to the weight ratio of 55:45, and distilling and dehydrating to form a mixture for later use; and respectively adding sodium sulfate and maleic anhydride into the mixture, and then, carrying out polymerization reaction and grafting to obtain the middle-molecular polymer, wherein the sodium sulfate accounts for 40% of the weight of the mixture and the maleic anhydride accounts for 60% of the weight of the mixture. The synergist is composed of the following raw materials in weight ratio: 20% of ethanediamine, 30% of hydrogen peroxide, 40% of vinyl monomers and 10% of plasticizer, and is obtained through mixing the raw materials and reacting at the temperature of 80 DEG C for 4h.
Description
Technical field
The present invention relates to the oil well drilling well and use the raw material field, specifically relate to a kind of multifunctional drilling fluid additive.
Background technology
Petroleum need to carry out the drilling well exploitation, in drilling process, needs to use drilling fluid, and drilling fluid is easily retrogradation at high temperature, and the chance water capacity is easily thinning, often can cause drilling well normally to move, and incurs loss through delay the duration.Deep layer is along with the increase temperature of drilling depth can constantly raise at the bottom of ground, the anti-highest temperature of drilling fluid of China's employing at present is 180 ℃, can not meet the drilling well requirement of high depth, for making construction, carry out smoothly, need to drop into various additives and be in harmonious proportion, cause working efficiency low, as need, continuing normal operation needs constantly to drop into a large amount of drilling fluids, 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, coordinate drilling fluid to use and can effectively play high temperature resistant effect, the input that economizes in raw materials simultaneously.
For achieving the above object, the present invention is by the following technical solutions: a kind of multifunctional drilling fluid additive, it is comprised of the raw material mixing of following weight part: 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 Molecularly Imprinted Polymer 25-35 part, synergistic agent 2-3 part.
The production technique of described middle Molecularly Imprinted Polymer is first by vinylformic acid and acrylamide, according to the 55:45 part by weight, to be mixed, and is standby by after distillation dehydration, forming mixture; After in mixture, adding respectively the sodium sulfate of mixture weight 40% and 60% maleic anhydride to carry out the polyreaction grafting and get final product.
Described synergistic agent is comprised of the raw material of following weight ratio: quadrol 20%, and hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacted 4 hours and get final product after above-mentioned raw materials is mixed at 80 ℃ of temperature.
Beneficial effect of the present invention is:
1, convenient and swift, save labor, only need in drilling fluid, add auxiliary agent can realize the adjusting to drilling fluid, without adding other additive.
2, auxiliary agent of the present invention has and well falls leak-off, anti-collapse and lubricant effect, makes drilling fluid have better rheological, helps to improve drilling speed, prevents bit freezing, and mud cake is thin and tough and tensile, the hole diameter rule.
3, can be used for soil layer and the rock stratum exploitation in various areas, meet shallow well, deep-well, fresh water well, saline wells and all can reach desirable drilling well effect.
4, have high temperature resistance, can temperature resistance more than 200 ℃, meet the drilling condition of high temperature high depth.
5, the use that economizes in raw materials, reduced the input amount of drilling fluid, but cost saving is 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 comprised of the raw material mixing of following weight part: 13 parts of anionic cellulose sodium salts, 4 parts of Graphite Powder 99s, 10 parts of potassium humates, 9 parts, Repone K, 5 parts of small cations, 18 parts of polyacrylonitrile hydrochlorates, 25 parts of middle Molecularly Imprinted Polymers, 2 parts of synergistic agent.
The production technique of described middle Molecularly Imprinted Polymer is first by vinylformic acid and acrylamide, according to the 55:45 part by weight, to be mixed, and is standby by after distillation dehydration, forming mixture; After in mixture, adding respectively the sodium sulfate of mixture weight 40% and 60% maleic anhydride to carry out the polyreaction grafting and get final product.
Described synergistic agent is comprised of the raw material of following weight ratio: quadrol 20%, and hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacted 4 hours and get final product after above-mentioned raw materials is mixed at 80 ℃ of temperature.
Embodiment 2
A kind of multifunctional drilling fluid additive, it is comprised of the raw material mixing of following weight part: 17 parts of anionic cellulose sodium salts, 6 parts of Graphite Powder 99s, 14 parts of potassium humates, 11 parts, Repone K, 6 parts of small cations, 22 parts of polyacrylonitrile hydrochlorates, 35 parts of middle Molecularly Imprinted Polymers, 3 parts of synergistic agent.
The production technique of described middle Molecularly Imprinted Polymer is first by vinylformic acid and acrylamide, according to the 55:45 part by weight, to be mixed, and is standby by after distillation dehydration, forming mixture; After in mixture, adding respectively the sodium sulfate of mixture weight 40% and 60% maleic anhydride to carry out the polyreaction grafting and get final product.
Described synergistic agent is comprised of the raw material of following weight ratio: quadrol 20%, and hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacted 4 hours and get final product after above-mentioned raw materials is mixed at 80 ℃ of temperature.
Embodiment 3
A kind of multifunctional drilling fluid additive, it is comprised of the raw material mixing of following weight part: 15 parts of anionic cellulose sodium salts, 5 parts of Graphite Powder 99s, 12 parts of potassium humates, 10 parts, Repone K, 5.5 parts of small cations, 20 parts of polyacrylonitrile hydrochlorates, 30 parts of middle Molecularly Imprinted Polymers, 2.5 parts of synergistic agent.
The production technique of described middle Molecularly Imprinted Polymer is first by vinylformic acid and acrylamide, according to the 55:45 part by weight, to be mixed, and is standby by after distillation dehydration, forming mixture; After in mixture, adding respectively the sodium sulfate of mixture weight 40% and 60% maleic anhydride to carry out the polyreaction grafting and get final product.
Described synergistic agent is comprised of the raw material of following weight ratio: quadrol 20%, and hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacted 4 hours and get final product after above-mentioned raw materials is mixed at 80 ℃ of temperature.
Product performance detect test: in 350ml fresh water, add soda ash 1g, wilkinite 17.5g to imitate the drilling fluid under fresh water environment, add drilling fluid additive 3.5g high-speed stirring of the present invention after 20 minute week, its Performance Detection such as following table:
| Apparent viscosity | API filtration | Core recovery % | Mill resistance reduced rate % |
| 9 | 8 | 88 | 45 |
As seen from the above table, after in drilling fluid, adding auxiliary agent of the present invention, its performance has better functional quality than common drilling fluid.
[0023] drilling fluid additive Preliminary Applications of the present invention is in on-site drilling, the material-saving effect of different volume drilling depths and working efficiency such as following table:
As seen from the above table, use the drilling fluid that contains auxiliary agent than common drilling fluid, reduced the use of raw material, improved working efficiency.
Claims (3)
1. multifunctional drilling fluid additive, it is characterized in that: it is comprised of the raw material mixing of following weight part: 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 Molecularly Imprinted Polymer 25-35 part, synergistic agent 2-3 part.
2. a kind of multifunctional drilling fluid additive according to claim 1 is characterized in that: the production technique of described middle Molecularly Imprinted Polymer is first by vinylformic acid and acrylamide, according to the 55:45 part by weight, to be mixed, and is standby by after distillation dehydration, forming mixture; After in mixture, adding respectively the sodium sulfate of mixture weight 40% and 60% maleic anhydride to carry out the polyreaction grafting and get final product.
3. a kind of multifunctional drilling fluid additive according to claim 1, it is characterized in that: described synergistic agent is comprised of the raw material of following weight ratio: quadrol 20%, hydrogen peroxide 30%, vinyl monomer 40%, softening agent 10%, reacted 4 hours and get final product after above-mentioned raw materials is mixed at 80 ℃ 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 true CN103396770A (en) | 2013-11-20 |
| CN103396770B CN103396770B (en) | 2015-08-19 |
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Family Applications (1)
| 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 |
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| CN (1) | CN103396770B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103642466A (en) * | 2013-11-28 | 2014-03-19 | 蔡修枝 | Novel anti-balling fluid loss drilling fluid treatment agent |
Citations (4)
| 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 |
| US20080167203A1 (en) * | 2005-02-22 | 2008-07-10 | Andrew Bradbury | Additive For Reducing Torque On A Drill String |
| CN102676128A (en) * | 2012-05-29 | 2012-09-19 | 嵇玉海 | Special high temperature resistant drilling fluid additive |
-
2013
- 2013-07-16 CN CN201310297185.2A patent/CN103396770B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 |
| US20080167203A1 (en) * | 2005-02-22 | 2008-07-10 | Andrew Bradbury | Additive For Reducing Torque On A Drill String |
| CN102676128A (en) * | 2012-05-29 | 2012-09-19 | 嵇玉海 | Special high temperature resistant drilling fluid additive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103642466A (en) * | 2013-11-28 | 2014-03-19 | 蔡修枝 | Novel anti-balling fluid loss drilling fluid treatment agent |
| CN103642466B (en) * | 2013-11-28 | 2016-03-30 | 蔡修枝 | A kind of anti-mud drum filtrate reducing additive for drilling fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103396770B (en) | 2015-08-19 |
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Granted publication date: 20150819 Termination date: 20160716 |