CN113502147A - Preparation method of bentonite for environment-friendly drilling fluid - Google Patents
Preparation method of bentonite for environment-friendly drilling fluid Download PDFInfo
- Publication number
- CN113502147A CN113502147A CN202110748317.3A CN202110748317A CN113502147A CN 113502147 A CN113502147 A CN 113502147A CN 202110748317 A CN202110748317 A CN 202110748317A CN 113502147 A CN113502147 A CN 113502147A
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- bentonite
- parts
- drilling fluid
- gum
- environment
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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
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/18—Clay-containing compositions characterised by the organic compounds
- C09K8/20—Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives
- C09K8/206—Derivatives of other natural products, e.g. cellulose, starch, sugars
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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
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/145—Clay-containing compositions characterised by the composition of the clay
-
- 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
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/16—Clay-containing compositions characterised by the inorganic compounds other than clay
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/34—Lubricant additives
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a preparation method of environment-friendly bentonite for drilling fluid, belonging to the field of preparation of materials for drilling fluid, wherein the bentonite for drilling fluid is prepared from the following components in parts by mass: bentonite: 30-40 parts of a binder; sodium carbonate: 4-6 parts; guar gum: 6-8 parts; xanthan gum: 6-8 parts; CL vegetable gum: 6-8 parts; sodium salt additive: 3-5 parts; lubricant: 1-4 parts. According to the invention, sodium salt, vegetable gum and the like are added into the bentonite raw material, so that the viscosity value of the bentonite raw material is improved, the prepared bentonite for the drilling fluid is ensured to be environment-friendly, and the prepared bentonite has good filtrate loss reduction performance.
Description
Technical Field
The invention belongs to the field of preparation of materials for drilling fluid, and particularly relates to a preparation method of environment-friendly bentonite for drilling fluid.
Background
It is known that bentonite contains montmorillonite as a main component, and that montmorillonite contains a specific layered structure having a large specific surface area, which makes bentonite highly adsorptive.
The bentonite exists in the water solution and can form stable suspension, the bentonite has better dispersibility when dispersed in the water and forms stable cohesive substances, and the bentonite has the characteristics, so that the bentonite is applied to drilling mud.
Disclosure of Invention
The invention discloses a preparation method of environment-friendly bentonite for drilling fluid, aiming at the technical problems of poor filtrate loss reduction performance and low viscosity value in the prior art.
The invention is realized by the following steps:
the preparation method of the environment-friendly bentonite for the drilling fluid is characterized in that the bentonite for the drilling fluid is prepared from the following components in parts by mass: bentonite: 30-40 parts of a binder; sodium carbonate: 4-6 parts; guar gum: 6-8 parts; xanthan gum: 6-8 parts; CL vegetable gum: 6-8 parts; sodium salt additive: 3-5 parts; lubricant: 1-4 parts.
Further, the sodium salt additive is a mixture of sodium phosphate and sodium oxide, and the mass ratio of the sodium phosphate to the sodium oxide is 2: 1.
Further, the mass ratio of the bentonite to the guar gum to the xanthan gum to the CL plant gum is 5: 1:1: 1.
further, the lubricant is talcum powder.
Further, the bentonite is sodium bentonite.
The preparation method of the bentonite for the environment-friendly drilling fluid is characterized by comprising the following steps:
step one, weighing 30-40 parts of bentonite and 4-6 parts of sodium carbonate, mixing, grinding and grinding to a powder state;
weighing and mixing 6-8 parts of guar gum, 6-8 parts of xanthan gum and 6-8 parts of CL vegetable gum according to the ratio of 1:1:1, pouring the mixture into a stirrer for stirring at the stirring speed of 500-800 r/min, paying attention to the fact that no agglomeration phenomenon occurs in the stirring process, and if the agglomeration occurs, smashing and mixing the agglomeration part;
and step three, pouring the uniformly stirred mixture of the guar gum, the xanthan gum and the CL plant gum into the powder bentonite prepared in the step one, adding 3-5 parts of the sodium salt additive and 1-4 parts of the lubricant, and uniformly stirring again.
Further, in the first step, the bentonite is ground into fine particles of 250 meshes to form bentonite after sodium treatment.
Compared with the prior art, the invention has the beneficial effects that:
the bentonite for the drilling fluid prepared by the invention can quickly improve the viscosity value of the bentonite after sodium treatment by adding the environment-friendly sodium salt, so that the bentonite for the drilling fluid has the environment-friendly characteristic at first, the hydration of the raw material bentonite is improved by adding the sodium carbonate and the bentonite, the viscosity value of the bentonite is improved, and the effect of quickly making slurry is achieved; according to the bentonite for the drilling fluid, guar gum is combined with a mixture of sodium carbonate and bentonite, the mixture can swell and hydrate when meeting water to form a high-viscosity sol solution, and the physical structure of the sol solution is a reticular colloid, so that the bentonite for the drilling fluid has environmental protection performance, the viscosity value is improved, the drilling fluid has stable property in the using process, the filtration loss reduction performance is good, and the soil adding amount of the prepared bentonite for the drilling fluid is greatly reduced in the using process.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention more clear, the present invention is further described in detail by the following examples. It should be noted that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The preparation method of the bentonite for the environment-friendly drilling fluid comprises the following steps:
step one, weighing 40 parts of bentonite and 5 parts of sodium carbonate, mixing, grinding and grinding to a powder state;
step two, weighing and mixing 8 parts of guar gum, 8 parts of xanthan gum and 8 parts of CL plant gum according to the ratio of 1:1:1, pouring the mixture into a stirrer for stirring at the stirring speed of 500-800 r/min, taking care not to cause agglomeration during stirring, and if the agglomeration occurs, smashing and mixing the agglomerated part;
and step three, pouring the uniformly stirred mixture of the guar gum, the xanthan gum and the CL plant gum into the powder bentonite prepared in the step one, adding 4 parts of the sodium salt additive and 3 parts of the lubricant, and uniformly stirring again.
Example 2
The preparation method of the bentonite for the environment-friendly drilling fluid comprises the following steps:
step one, weighing 40 parts of bentonite and 6 parts of sodium carbonate, mixing, grinding and grinding to a powder state;
step two, weighing and mixing 8 parts of guar gum, 8 parts of xanthan gum and 8 parts of CL plant gum according to the ratio of 1:1:1, pouring the mixture into a stirrer for stirring at the stirring speed of 500-800 r/min, taking care not to cause agglomeration during stirring, and if the agglomeration occurs, smashing and mixing the agglomerated part;
and step three, pouring the uniformly stirred mixture of the guar gum, the xanthan gum and the CL plant gum into the powder bentonite prepared in the step one, adding 5 parts of the sodium salt additive and 4 parts of the lubricant, and uniformly stirring again.
Example 3
The preparation method of the bentonite for the environment-friendly drilling fluid comprises the following steps:
step one, weighing 30 parts of bentonite and 4 parts of sodium carbonate, mixing, grinding and grinding to a powder state;
step two, weighing and mixing 6 parts of guar gum, 6 parts of xanthan gum and 6 parts of CL plant gum according to the ratio of 1:1:1, pouring the mixture into a stirrer for stirring at the stirring speed of 500-800 r/min, taking care not to cause agglomeration during stirring, and if the agglomeration occurs, smashing and mixing the agglomerated part;
and step three, pouring the uniformly stirred mixture of the guar gum, the xanthan gum and the CL plant gum into the powder bentonite prepared in the step one, adding 3 parts of the sodium salt additive and 1 part of the lubricant, and uniformly stirring again.
Example 4
The preparation method of the bentonite for the environment-friendly drilling fluid comprises the following steps:
step one, weighing 35 parts of bentonite and 5 parts of sodium carbonate, mixing, grinding and grinding to a powder state;
weighing and mixing 7 parts of guar gum, 7 parts of xanthan gum and 7 parts of CL plant gum according to the ratio of 1:1:1, pouring the mixture into a stirrer for stirring at the stirring speed of 500-800 r/min, taking care not to cause agglomeration during stirring, and if the agglomeration occurs, smashing and mixing the agglomerated part;
and step three, pouring the uniformly stirred mixture of the guar gum, the xanthan gum and the CL plant gum into the powder bentonite prepared in the step one, adding 4 parts of the sodium salt additive and 2 parts of the lubricant, and uniformly stirring again.
Example 5
The preparation method of the bentonite for the environment-friendly drilling fluid comprises the following steps:
step one, weighing 30 parts of bentonite and 5 parts of sodium carbonate, mixing, grinding and grinding to a powder state;
step two, weighing and mixing 6 parts of guar gum, 6 parts of xanthan gum and 6 parts of CL plant gum according to the ratio of 1:1:1, pouring the mixture into a stirrer for stirring at the stirring speed of 500-800 r/min, taking care not to cause agglomeration during stirring, and if the agglomeration occurs, smashing and mixing the agglomerated part;
and step three, pouring the uniformly stirred mixture of the guar gum, the xanthan gum and the CL plant gum into the powder bentonite prepared in the step one, adding 4 parts of the sodium salt additive and 2 parts of the lubricant, and uniformly stirring again.
The bentonite for the environment-friendly drilling fluid prepared by the embodiment is subjected to performance test, and the following results are obtained:
| amount of soil added | Filtration loss/cm3 | Viscometer reading (600 r/min) | |
| Example 1 | 3.2% | ≤15 | ≥35 |
| Example 2 | 3.2% | ≤15 | ≥36 |
| Example 3 | 3.4% | ≤15 | ≥35 |
| Example 4 | 3.2% | ≤15 | ≥36 |
| Example 5 | 3.3% | ≤15 | ≥37 |
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (7)
1. The preparation method of the environment-friendly bentonite for the drilling fluid is characterized in that the bentonite for the drilling fluid is prepared from the following components in parts by mass:
bentonite: 30-40 parts of a binder;
sodium carbonate: 4-6 parts;
guar gum: 6-8 parts;
xanthan gum: 6-8 parts;
CL vegetable gum: 6-8 parts;
sodium salt additive: 3-5 parts;
lubricant: 1-4 parts.
2. The preparation method of the bentonite for the environment-friendly drilling fluid as claimed in claim 1, wherein the sodium salt additive is a mixture of sodium phosphate and sodium oxide, and the mass ratio of the sodium phosphate to the sodium oxide is 2: 1.
3. The preparation method of the bentonite according to claim 1, wherein the bentonite, the guar gum, the xanthan gum and the CL vegetable gum are mixed in a mass ratio of 5: 1:1: 1.
4. the method for preparing bentonite for the environment-friendly drilling fluid according to claim 1, wherein the lubricant is talcum powder.
5. The method for preparing bentonite for environment-friendly drilling fluid according to claim 1, wherein the bentonite is sodium bentonite.
6. The preparation method of the bentonite for the environment-friendly drilling fluid as claimed in any one of claims 1 to 5, wherein the preparation method specifically comprises the following steps:
step one, weighing 30-40 parts of bentonite and 4-6 parts of sodium carbonate, mixing, grinding and grinding to a powder state;
weighing and mixing 6-8 parts of guar gum, 6-8 parts of xanthan gum and 6-8 parts of CL vegetable gum according to the ratio of 1:1:1, pouring the mixture into a stirrer for stirring at the stirring speed of 500-800 r/min, paying attention to the fact that no agglomeration phenomenon occurs in the stirring process, and if the agglomeration occurs, smashing and mixing the agglomeration part;
and step three, pouring the uniformly stirred mixture of the guar gum, the xanthan gum and the CL plant gum into the powder bentonite prepared in the step one, adding 3-5 parts of the sodium salt additive and 1-4 parts of the lubricant, and uniformly stirring again.
7. The method for preparing bentonite for environment-friendly drilling fluid as claimed in claim 6, wherein in the first step, the bentonite is ground into fine particles of 250 meshes to form bentonite after sodium treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110748317.3A CN113502147A (en) | 2021-07-02 | 2021-07-02 | Preparation method of bentonite for environment-friendly drilling fluid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110748317.3A CN113502147A (en) | 2021-07-02 | 2021-07-02 | Preparation method of bentonite for environment-friendly drilling fluid |
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| Publication Number | Publication Date |
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| CN113502147A true CN113502147A (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110748317.3A Pending CN113502147A (en) | 2021-07-02 | 2021-07-02 | Preparation method of bentonite for environment-friendly drilling fluid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490498A (en) * | 2022-08-22 | 2022-12-20 | 句容康泰膨润土有限公司 | Rapidly solidified bentonite environment-friendly material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4634538A (en) * | 1984-08-13 | 1987-01-06 | American Colloid Company | Water swellable clay composition and method to maintain stability in salt contaminated water |
| US5476543A (en) * | 1994-07-19 | 1995-12-19 | Ryan; Robert G. | Environmentally safe well plugging composition |
| WO2008077877A2 (en) * | 2006-12-22 | 2008-07-03 | Omya Development Ag | Method for processing crude bentonite |
| CN107418530A (en) * | 2017-09-05 | 2017-12-01 | 宣化燕北矿业有限责任公司 | A kind of preparation method of seawater drilling well composite earth |
| CN108163865A (en) * | 2018-03-16 | 2018-06-15 | 湖州知维技术服务有限公司 | A kind of artificial modification's sodium-ionized bentonite preparation method |
| CN111909669A (en) * | 2020-07-06 | 2020-11-10 | 南京惠利通膨润土科技有限公司 | Compound bentonite raw material for seawater drilling fluid and preparation method and application thereof |
-
2021
- 2021-07-02 CN CN202110748317.3A patent/CN113502147A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4634538A (en) * | 1984-08-13 | 1987-01-06 | American Colloid Company | Water swellable clay composition and method to maintain stability in salt contaminated water |
| US5476543A (en) * | 1994-07-19 | 1995-12-19 | Ryan; Robert G. | Environmentally safe well plugging composition |
| WO2008077877A2 (en) * | 2006-12-22 | 2008-07-03 | Omya Development Ag | Method for processing crude bentonite |
| CN107418530A (en) * | 2017-09-05 | 2017-12-01 | 宣化燕北矿业有限责任公司 | A kind of preparation method of seawater drilling well composite earth |
| CN108163865A (en) * | 2018-03-16 | 2018-06-15 | 湖州知维技术服务有限公司 | A kind of artificial modification's sodium-ionized bentonite preparation method |
| CN111909669A (en) * | 2020-07-06 | 2020-11-10 | 南京惠利通膨润土科技有限公司 | Compound bentonite raw material for seawater drilling fluid and preparation method and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490498A (en) * | 2022-08-22 | 2022-12-20 | 句容康泰膨润土有限公司 | Rapidly solidified bentonite environment-friendly material and preparation method thereof |
| CN115490498B (en) * | 2022-08-22 | 2023-09-22 | 句容康泰膨润土有限公司 | Quick-setting bentonite environment-friendly material and preparation method thereof |
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Application publication date: 20211015 |