CN105176500A - Saturated salt filtrate reducer polymer for drilling fluid - Google Patents
Saturated salt filtrate reducer polymer for drilling fluid Download PDFInfo
- Publication number
- CN105176500A CN105176500A CN201510572635.3A CN201510572635A CN105176500A CN 105176500 A CN105176500 A CN 105176500A CN 201510572635 A CN201510572635 A CN 201510572635A CN 105176500 A CN105176500 A CN 105176500A
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- China
- Prior art keywords
- saturated salt
- drilling fluid
- polymer
- polymkeric substance
- filtrate reducer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention discloses a saturated salt filtrate reducer polymer for drilling fluid. The saturated salt filtrate reducer polymer is prepared from the following components in percentage by weight: 80 percent of raw material A (polymer) and 20 percent of raw material B (modified starch). The saturated salt filtrate reducer polymer is prepared by reacting natural materials with active substances with special functions by a special process; the saturated salt filtrate reducer polymer is superior to artificially-synthesized polymer filtrate reducers in property, has better temperature tolerance and salt tolerance, and is suitable for drilling fluid systems containing fresh water, and saline water and seawater with various concentrations; the saturated salt filtrate reducer polymer does not ferment in the drilling fluid, can be biologically degraded and is free from pollution to the environment, so the saturated salt filtrate reducer polymer belongs to a green environment-friendly product.
Description
Technical field
The present invention relates to petrochemical complex oil drilling liquid system technical field, particularly relate to a kind of drilling fluid saturated salt fluid loss agent polymkeric substance.
Background technology
At present, shallow-layer crude oil is in the world fewer and feweri, and mining depth is more and more darker, and is also short of very much for the drilling well auxiliary agent of deep-well, ultra deep well.Some products in the market or the just not anti-salt of high temperature resistance, that thickening is excessive, need the subsidiary material adding other, drilling well could normally be carried out, therefore, market in urgent need a kind of anti-ultrahigh-temperature, antisaturation salt solution and seawater, effectively can reduce the assistant for drilling petroleum well of drilling mud infiltrations amount, not thickening.
Summary of the invention
The object of this invention is to provide a kind of drilling fluid saturated salt fluid loss agent polymkeric substance.
The present invention is achieved through the following technical solutions:
A kind of drilling fluid saturated salt fluid loss agent polymkeric substance, is made up of once composition: raw material A (polymkeric substance) 80%, raw material B(treated starch in percentage terms) 20%.
Further, described polymkeric substance mixes in 3:2:1 ratio for removing calcium acrylate, valchovite and sodium polyacrylate.
Further, the preparation method of described treatment agent is:
1) calcium acrylate, valchovite and sodium polyacrylate mixture 80% is taken by proportioning, starch 20%;
2) by starch dissolution or be scattered in deionized water, at 55-60 DEG C, be stirred to its complete gelatinization, make and obtain 5-7wt% starch solution; In gained starch solution, add 80U/mL cellulase, solution pH value is adjusted to 5.5, temperature controls to 65 DEG C, react after 2 hours, starch solution pH value is adjusted to 8, keeps temperature-resistant, add 120U/mL Sumizyme MP, react 4 hours, obtain modified starch solution;
3) calcium acrylate, valchovite and sodium polyacrylate mixture were filtered after 95% alcohol immersion 30-45 minute, clean with distilled water, use 5%-8% salt after acid soak 30-40 minute again, filter, clean with distilled water, then after soaking 25-30 minute with 5%-8% sodium hydroxide solution, filter, clean with distilled water, stand-by;
4) in feeding chamber, add calcium acrylate, valchovite and sodium polyacrylate mixture after treatment and modified starch solution, bi-material divides to circulate for 2 times and alternate with each otherly to add, stirring 15 minutes all material adds after;
5) stir complete after, open stir storehouse baiting valve, work in-process put into finished bag;
6) sealing packaging, piles up finished product neatly, and mark is clear and definite, and finished product is put in storage.
The invention has the beneficial effects as follows, compared with prior art:
1. the present invention adopts natural materials and the agent active substance with specific function, forms through special process reaction.Its performance is better than the polymer class fluid loss agent of synthetic, has good temperature resistance, saline-alkaline tolerance, is applicable in fresh water, the salt solution of various concentration, seawater drilling fluid system, nonfermented in drilling fluid, biodegradable, environmentally safe, belongs to Green Product.
2. this product has the ability of superpower anti-salt filtrate reducing, and in saturated saltwater mud, filter loss reduced rate can reach 80%.
3. this product logical is while having higher saline-alkaline tolerance, also can not improve the viscosity of mud system, have higher compatibility, can be widely used in multiple mud system.
Embodiment
A kind of drilling fluid saturated salt fluid loss agent polymkeric substance, is made up of once composition: raw material A (polymkeric substance) 80%, raw material B(treated starch in percentage terms) 20%.
Further, described polymkeric substance mixes in 3:2:1 ratio for removing calcium acrylate, valchovite and sodium polyacrylate.
Further, the preparation method of described treatment agent is:
1) calcium acrylate, valchovite and sodium polyacrylate mixture 80% is taken by proportioning, starch 20%;
2) by starch dissolution or be scattered in deionized water, at 55-60 DEG C, be stirred to its complete gelatinization, make and obtain 5-7wt% starch solution; In gained starch solution, add 80U/mL cellulase, solution pH value is adjusted to 5.5, temperature controls to 65 DEG C, react after 2 hours, starch solution pH value is adjusted to 8, keeps temperature-resistant, add 120U/mL Sumizyme MP, react 4 hours, obtain modified starch solution;
3) calcium acrylate, valchovite and sodium polyacrylate mixture were filtered after 95% alcohol immersion 30-45 minute, clean with distilled water, use 5%-8% salt after acid soak 30-40 minute again, filter, clean with distilled water, then after soaking 25-30 minute with 5%-8% sodium hydroxide solution, filter, clean with distilled water, stand-by;
4) in feeding chamber, add calcium acrylate, valchovite and sodium polyacrylate mixture after treatment and modified starch solution, bi-material divides to circulate for 2 times and alternate with each otherly to add, stirring 15 minutes all material adds after;
5) stir complete after, open stir storehouse baiting valve, work in-process put into finished bag;
6) sealing packaging, piles up finished product neatly, and mark is clear and definite, and finished product is put in storage.
Claims (3)
1. a drilling fluid saturated salt fluid loss agent polymkeric substance, is characterized in that, is made up in percentage terms: raw material A (polymkeric substance) 80%, raw material B(treated starch of once composition) 20%.
2. a kind of drilling fluid saturated salt fluid loss agent polymkeric substance according to claim 1, it is characterized in that, described polymkeric substance mixes in 3:2:1 ratio for removing calcium acrylate, valchovite and sodium polyacrylate.
3. a kind of drilling fluid saturated salt fluid loss agent polymkeric substance according to claim 1 and 2, it is characterized in that, the preparation method of described treatment agent is:
1) calcium acrylate, valchovite and sodium polyacrylate mixture 80% is taken by proportioning, starch 20%;
2) by starch dissolution or be scattered in deionized water, at 55-60 DEG C, be stirred to its complete gelatinization, make and obtain 5-7wt% starch solution; In gained starch solution, add 80U/mL cellulase, solution pH value is adjusted to 5.5, temperature controls to 65 DEG C, react after 2 hours, starch solution pH value is adjusted to 8, keeps temperature-resistant, add 120U/mL Sumizyme MP, react 4 hours, obtain modified starch solution;
3) calcium acrylate, valchovite and sodium polyacrylate mixture were filtered after 95% alcohol immersion 30-45 minute, clean with distilled water, use 5%-8% salt after acid soak 30-40 minute again, filter, clean with distilled water, then after soaking 25-30 minute with 5%-8% sodium hydroxide solution, filter, clean with distilled water, stand-by;
4) in feeding chamber, add calcium acrylate, valchovite and sodium polyacrylate mixture after treatment and modified starch solution, bi-material divides to circulate for 2 times and alternate with each otherly to add, stirring 15 minutes all material adds after;
5) stir complete after, open stir storehouse baiting valve, work in-process put into finished bag;
6) sealing packaging, piles up finished product neatly, and mark is clear and definite, and finished product is put in storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510572635.3A CN105176500A (en) | 2015-09-10 | 2015-09-10 | Saturated salt filtrate reducer polymer for drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510572635.3A CN105176500A (en) | 2015-09-10 | 2015-09-10 | Saturated salt filtrate reducer polymer for drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105176500A true CN105176500A (en) | 2015-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510572635.3A Pending CN105176500A (en) | 2015-09-10 | 2015-09-10 | Saturated salt filtrate reducer polymer for drilling fluid |
Country Status (1)
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| CN (1) | CN105176500A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735779A (en) * | 2009-12-14 | 2010-06-16 | 北京中科日升科技有限公司 | Anti-high temperature anti-saturation salt fluid loss agent and preparation method thereof |
| CN101864283A (en) * | 2009-12-11 | 2010-10-20 | 中国石油集团钻井工程技术研究院 | Water-based drilling fluid composition containing amine compound |
| CN102220113A (en) * | 2010-04-16 | 2011-10-19 | 长江大学 | Solid phase-free drilling-in liquid |
| CN102775969A (en) * | 2012-07-23 | 2012-11-14 | 北京中科日升科技有限公司 | Multifunctional filtrate reducer and preparation method thereof |
| CN103756658A (en) * | 2014-02-19 | 2014-04-30 | 北京一龙恒业石油工程技术有限公司 | Automatic melting temporary plugging agent composition for oil-water well acidification in oil field |
-
2015
- 2015-09-10 CN CN201510572635.3A patent/CN105176500A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864283A (en) * | 2009-12-11 | 2010-10-20 | 中国石油集团钻井工程技术研究院 | Water-based drilling fluid composition containing amine compound |
| CN101735779A (en) * | 2009-12-14 | 2010-06-16 | 北京中科日升科技有限公司 | Anti-high temperature anti-saturation salt fluid loss agent and preparation method thereof |
| CN102220113A (en) * | 2010-04-16 | 2011-10-19 | 长江大学 | Solid phase-free drilling-in liquid |
| CN102775969A (en) * | 2012-07-23 | 2012-11-14 | 北京中科日升科技有限公司 | Multifunctional filtrate reducer and preparation method thereof |
| CN103756658A (en) * | 2014-02-19 | 2014-04-30 | 北京一龙恒业石油工程技术有限公司 | Automatic melting temporary plugging agent composition for oil-water well acidification in oil field |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20151223 |