CN1236002A - Treating agent for drilling liquid - Google Patents
Treating agent for drilling liquid Download PDFInfo
- Publication number
- CN1236002A CN1236002A CN 98108222 CN98108222A CN1236002A CN 1236002 A CN1236002 A CN 1236002A CN 98108222 CN98108222 CN 98108222 CN 98108222 A CN98108222 A CN 98108222A CN 1236002 A CN1236002 A CN 1236002A
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- CN
- China
- Prior art keywords
- drilling fluid
- additive
- add
- water
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The treating agent for drilling fluid includes paper-making digestion liquid, grains or potato powder, NaOH, H2SO4, NaCO3 and water soluble polymer. It is used for fresh water, salt solution slurry compounded and salt solution contaminated drilling fluids.
Description
The present invention relates to utilize the additive for drilling fluid of natural macromolecular.
Additive for drilling fluid is an indispensable integral part in the drilling engineering.China's fine chemical product handbook version P258 in 1992 has reported and has utilized carboxymethyl starch to prepare drilling fluid that its feature is that the leak-off of falling effect is arranged, but is difficult to realize the viscosity reduction effect; The feero-chromo-lignosulfonate of P258 report can play good viscosity reduction effect, but owing to contain chromium environment is caused severe contamination.
One of purpose of the present invention is the additive for drilling fluid of a kind of cheapness of preparation, makes it the existing leak-off effect of falling, and the effect of control viscosity is arranged again.
Two of purpose of the present invention provides the preparation technology of this additive for drilling fluid.
Additive for drilling fluid of the present invention comprises following component and content:
The component of additive for drilling fluid and content (weight ratio)
Papermaking digesting liquid (butt) 0.30-0.50
Cereal potato class powder 0.35-0.55
Sodium hydroxide 0.10-0.25
Sulfuric acid 0.00-0.25
Yellow soda ash 0.00-0.24
Water-soluble polymer 0.01-0.15
Above-mentioned water-soluble polymer is hydrolyzed polyacrylonitrile, polyacrylamide, polyvinyl alcohol, carboxymethyl cellulose.
The preparation method of additive for drilling fluid of the present invention carries out in the following order: 1. by weight add Na in containing the papermaking digesting liquid of solid substance 0.30-0.50
2CO
30.00-0.24, or add 0.00-0.25 sulfuric acid, and after filtration, remove water-insoluble, add NaOH0.10-0.25 again.2. add cereal potato class powder 0.35-0.55 and water-soluble polymer 0.01-0.15 again and stir temperature reaction, temperature of reaction is 100-180 ℃ of time 1-5 hour.3. dry above-mentioned reaction product is prepared product.Product of the present invention can be used for fresh-water drilling fluid, and salt solution is joined slurry drilling fluid and saline pollution drilling fluid.Its main range of application is middle-deep well and shallow well.
Embodiment 1: utilize reed acid system papermaking digesting liquid to prepare additive for drilling fluid, add Na with cooking liquor 100 grams (45%) 300 gram water in reaction flask
2CO
3Separate water-insoluble 6.5g stir (room temperature) after 30 minutes.
Above-mentioned water-soluble part adds Semen Maydis powder 40 gram polyvinyl alcohol 2 gram sodium hydroxide 8 grams, is warming up to 3 hours after drying of 100 ℃ of stirrings and obtains product.
The property of drilling fluid of acid system papermaking digesting liquid and grain flour synthetic sample
Embodiment 2: utilize the alkali paper-making cooking liquor
| Project | Index | ||
| Fresh-water drilling fluid | Salt-water drilling fluid | ||
| The base slurry | Filter loss ml/30min | ????25±2.0 | ?????55±3.0 |
| Apparent viscosity mpa.s | ????6.0-8.0 | ?????5.0-7.0 | |
| After DMC handles | Filter loss ml/30min | ????12.0 | ?????12.6 |
| Apparent viscosity mpa.s | ????4.5 | ?????6.5 | |
Add 300 gram water in 1 liter reaction flask, pine soda digestion liquor 100 grams (45%) add sodium hydroxide 10 grams again, Semen Maydis powder 30 grams, and flour 15 grams, fine 7.5 grams of hydrolysis polypropylene are warming up to 100 ℃ of 5 hours after drying that reflux and obtain product.Embodiment 3: utilize pine alkali paper-making cooking liquor
1. add 350 gram water in 1 liter reaction flask, cooking liquor 100 grams (48%) add sulfuric acid 6 grams and stir after 30 minutes, remove by filter water-insoluble.
2. above-mentioned filtered liquid is added Na
2CO
32 restrain, and sodium hydroxide 10 grams add light flour 15 grams again, Semen Maydis powder 25 grams, and polyacrylamide 1 gram is warming up to 1 hour after drying of 180 ℃ of stirrings and makes finished product.Embodiment 4: utilize alkaline process reed papermaking digesting liquid
Add 350 gram water in 1 liter reaction flask, cooking liquor 100 grams (40%) add Na
2CO
31 gram, sodium hydroxide 5 grams stir and add polyacrylamide 3 grams after 30 minutes, and Semen Maydis powder 36 grams are warming up to 100 ℃, stir 3.5 hours after drying and make finished product.Embodiment 5: utilize cassava to prepare additive for drilling fluid
(1) dried Tapioca Starch 40 grams add entry 360 grams, filter on 40 purposes sieve, remove the material under the not filter.
(2) mixture of above-mentioned dried cassava and water is poured in 1 liter the reaction flask, added sodium hydroxide 17 grams, papermaking digesting liquid 100 grams (48%) add polyacrylamide 2.5 grams again, are warming up to the 4 hours after drying that reflux and obtain product.
Claims (3)
1. an additive for drilling fluid is characterized in that described treatment agent comprises following component and content: (weight ratio)
Papermaking digesting liquid (butt) 0.30-0.50
Cereal potato class powder 0.35-0.55
Sodium hydroxide 0.10-0.25
Sulfuric acid 0.00-0.25
Yellow soda ash 0.00-0.24
Water-soluble polymer 0.01-0.15
Described water-soluble polymer is that the hydrolysis polypropylene is fine, polyacrylamide, polyvinyl alcohol or carboxymethyl cellulose.
2. according to the described a kind of additive for drilling fluid of claim, it is characterized in that described cereal potato class powder is Semen Maydis powder, light flour or potato powder.
3. according to the preparation method of the described a kind of additive for drilling fluid of claim, it is characterized in that carrying out in the following order:
1) by weight in containing the papermaking digesting liquid of solid substance 0.30-0.50, adding Na
2CO
30.00-0.24 or add the sulfuric acid of 0.00-0.25, add NaOH0.10-0.25 again;
2) add grain flour 0.35-0.55 and water-soluble polymer 0.01-0.15;
3) preparation method of a kind of additive for drilling fluid according to claim 2 is characterized in that described grain flour is Semen Maydis powder, light flour or potato powder.
4) synthesis temperature behind the adding grain flour is controlled at 100-180 ℃, and the reaction times is 1-5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98108222 CN1236002A (en) | 1998-05-14 | 1998-05-14 | Treating agent for drilling liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98108222 CN1236002A (en) | 1998-05-14 | 1998-05-14 | Treating agent for drilling liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1236002A true CN1236002A (en) | 1999-11-24 |
Family
ID=5219580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98108222 Pending CN1236002A (en) | 1998-05-14 | 1998-05-14 | Treating agent for drilling liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1236002A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307280C (en) * | 2005-07-01 | 2007-03-28 | 中国石油化工集团公司 | Polymeric alochol biopolymer saturated salt-water drilling fluid |
| CN100394643C (en) * | 2000-03-07 | 2008-06-11 | 盖尔创尼克斯公司 | Antenna connector |
| CN103740342A (en) * | 2014-01-09 | 2014-04-23 | 濮阳市诚信钻采助剂有限公司 | High temperature-resistant and salt-resistant fluid loss additive and preparation method thereof |
| CN106279709A (en) * | 2016-08-10 | 2017-01-04 | 吴迪 | A kind of method utilizing amylose and sulfonated wheat-strew lignin to prepare fluid loss additive |
| CN109735311A (en) * | 2019-01-22 | 2019-05-10 | 北京宏勤石油助剂有限公司 | A kind of drilling fluid environment-friendly type sealing agent and preparation method thereof |
-
1998
- 1998-05-14 CN CN 98108222 patent/CN1236002A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394643C (en) * | 2000-03-07 | 2008-06-11 | 盖尔创尼克斯公司 | Antenna connector |
| CN1307280C (en) * | 2005-07-01 | 2007-03-28 | 中国石油化工集团公司 | Polymeric alochol biopolymer saturated salt-water drilling fluid |
| CN103740342A (en) * | 2014-01-09 | 2014-04-23 | 濮阳市诚信钻采助剂有限公司 | High temperature-resistant and salt-resistant fluid loss additive and preparation method thereof |
| CN103740342B (en) * | 2014-01-09 | 2017-11-17 | 濮阳市诚信钻采助剂有限公司 | High-temperature resisting and salt-resisting fluid loss additive and preparation method thereof |
| CN106279709A (en) * | 2016-08-10 | 2017-01-04 | 吴迪 | A kind of method utilizing amylose and sulfonated wheat-strew lignin to prepare fluid loss additive |
| CN109735311A (en) * | 2019-01-22 | 2019-05-10 | 北京宏勤石油助剂有限公司 | A kind of drilling fluid environment-friendly type sealing agent and preparation method thereof |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |