CN102311723A - Preparation method of linkage reducer for drilling fluid - Google Patents
Preparation method of linkage reducer for drilling fluid Download PDFInfo
- Publication number
- CN102311723A CN102311723A CN201110184349A CN201110184349A CN102311723A CN 102311723 A CN102311723 A CN 102311723A CN 201110184349 A CN201110184349 A CN 201110184349A CN 201110184349 A CN201110184349 A CN 201110184349A CN 102311723 A CN102311723 A CN 102311723A
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- preparation
- mixed solution
- product
- falls
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 239000012530 fluid Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 10
- 239000004160 Ammonium persulphate Substances 0.000 claims description 5
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 5
- 235000010265 sodium sulphite Nutrition 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 claims description 3
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 claims description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N ethyl acetate Substances CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 239000013505 freshwater Substances 0.000 abstract description 3
- 239000013535 sea water Substances 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 abstract 3
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 abstract 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a preparation method of linkage reducer for drilling fluid, which comprises the following steps: step 1, dissolving 2-propylene amido-2-methyl propanesulfonic acid into 600L of water, neutralizing by 48% of potassium hydroxide solution, regulating the pH value to 4-5, then adding 31.9kg of acrylamide, dissolving and then adding 12.6kg of vinyl acetate; step 2, adding 0.075 kg of ammonium persulfate and 0.075 kg of sodium bisulfite in a mixed solution from a step 1, uniformly stirring the mixed solution and then placing in sealed environment for a while to obtain a gel product finally; cutting the products and granulating, drying at the temperature of 100-120 DEG C, crushing to obtain the product. According to the invention, the linkage reducer has strong salt resistance capability, and has linkage resistance effect to fresh water drilling fluid, saturated salt water drilling fluid and artificial seawater drilling fluid, and is suitable for a deep well and a saturated salt water drilling fluid system.
Description
Technical field
The present invention relates to a kind of drilling fluid with the preparation method who falls the leakage agent.
Background technology
In oil drilling, because well depth increases, the shaft bottom is under the high temperature and high pressure condition; Drilling interval is long and big section bore hole arranged; Also will drill many bad grounds, so its operating condition is much harsher than general well, so the performance of drilling fluid is also had higher requirement.Under hot conditions, the various components in the drilling fluid all can be degraded, fermentation, and variations such as thickening and inefficacy, thus make the performance generation drastic change of drilling fluid, and be difficult for adjustment and control; And being accompanied by high reservoir pressure, drilling fluid must have very high density, thereby causes in the drilling fluid solid load very high.In this case; Pressure differential sticking and leakage take place; The possibility of down hole problems such as blowout can increase greatly, and rheological that desire maintenance drilling fluid is good and lower wastage also can be difficult more, and use conventional drilling liquid can't satisfy the requirement of drilling engineering this moment.
Summary of the invention
The invention provides a kind of drilling fluid with the preparation method who falls the leakage agent; The agent temperature resistance is missed in falling of making, saline-alkaline tolerance is strong; The stronger leakage effect of falling is all arranged in fresh-water drilling fluid, saturated salt-water drilling fluid and artificial seawater drilling fluid, be applicable to deep-well and saturated salt-water drilling fluid system.
The present invention has adopted following technical scheme: a kind of drilling fluid is with the preparation method who falls the leakage agent; It may further comprise the steps: step 1; 2-acrylamido-2-methyl propane sulfonic acid is dissolved in the 600L water, the potassium hydroxide solution neutralization with 48%, adjustment pH value is to 4-5; Add the 31.9kg acrylic amide then, treat that its dissolving back adds the 12.6kg vinyl-acetic ester; Step 2 adds 0.075kg ammonium persulphate and 0.075kg sodium sulfite anhy 96 in the reacted mixed solution in step 1, in closed environment, place for some time after mixing solutions is stirred, and obtains the gel product at last; Product, is pulverized and is promptly got product in 100-120 ℃ of oven dry down through shear granulation.
Earlier reacted mixed solution in the step 1 is warming up to 35 ℃ in the said step 2, adds ammonium persulphate and sodium sulfite anhy 96 again; Temperature in the said step 2 in the closed environment is 35 ± 1 ℃, and mixing solutions is placed 1-2h in closed environment.
The present invention has following beneficial effect: the product that the present invention makes is a kind of sulfonic anionic terpolymer that contains; The leakage agent is fallen as drilling fluid; Temperature resistance, saline-alkaline tolerance are strong; The stronger leakage effect of falling is all arranged in fresh-water drilling fluid, saturated salt-water drilling fluid and artificial seawater drilling fluid, be applicable to deep-well and saturated salt-water drilling fluid system.
Embodiment
The invention provides a kind of drilling fluid with the preparation method who falls the leakage agent; It may further comprise the steps: step 1; 2-acrylamido-2-methyl propane sulfonic acid is dissolved in the 600L water, the potassium hydroxide solution neutralization with 48%, adjustment pH value is to 4-5; Add the 31.9kg acrylic amide then, treat that its dissolving back adds the 12.6kg vinyl-acetic ester;
Step 2; Earlier reacted mixed solution in the step 1 is warming up to 35 ℃; In mixed solution, add 0.075kg ammonium persulphate and 0.075kg sodium sulfite anhy 96 again, in 35 ± 1 ℃ closed environment, place 1-2h after mixing solutions is stirred, obtain the gel product at last; Product, is pulverized and is promptly got product in 100-120 ℃ of oven dry down through shear granulation.
Quality index
| Project | Index |
| Outward appearance | White powder |
| Fineness (60 order aperture standard sieve) | 100% passes through |
| Working substance % | ≥90 |
| Moisture % | ≥7.0 |
| The AV mPa.s of 1% aqueous solution | ≥30 |
| Water-insoluble % | ≥2.0 |
Claims (3)
1. a drilling fluid is with the preparation method who falls the leakage agent, and it may further comprise the steps:
Step 1 is dissolved in 2-acrylamido-2-methyl propane sulfonic acid in the 600L water, the potassium hydroxide solution neutralization with 48%, and adjustment pH value adds the 31.9kg acrylic amide then to 4-5, treats that its dissolving back adds the 12.6kg vinyl-acetic ester;
Step 2 adds 0.075kg ammonium persulphate and 0.075kg sodium sulfite anhy 96 in the reacted mixed solution in step 1, in closed environment, place for some time after mixing solutions is stirred, and obtains the gel product at last; Product, is pulverized and is promptly got product in 100-120 ℃ of oven dry down through shear granulation.
2. require described a kind of drilling fluid with the preparation method who falls the leakage agent according to right 1, it is characterized in that earlier reacted mixed solution in the step 1 being warming up to 35 ℃ in the said step 2, add ammonium persulphate and sodium sulfite anhy 96 again.
3. require described a kind of drilling fluid with the preparation method who falls the leakage agent according to right 1, it is characterized in that the temperature in the closed environment is 35 ± 1 ℃ in the said step 2, mixing solutions is placed 1-2h in closed environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110184349A CN102311723A (en) | 2011-06-29 | 2011-06-29 | Preparation method of linkage reducer for drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110184349A CN102311723A (en) | 2011-06-29 | 2011-06-29 | Preparation method of linkage reducer for drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102311723A true CN102311723A (en) | 2012-01-11 |
Family
ID=45425299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110184349A Pending CN102311723A (en) | 2011-06-29 | 2011-06-29 | Preparation method of linkage reducer for drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102311723A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136576A (en) * | 1995-02-21 | 1996-11-27 | 菲利浦石油公司 | Composite composed of polymer containing acrylicamide and its use method |
| CN1890345A (en) * | 2003-12-11 | 2007-01-03 | 切夫里昂菲利普化学有限责任公司 | Methods of reducing fluid loss in a wellbore servicing fluid |
| WO2007005499A1 (en) * | 2005-06-30 | 2007-01-11 | M-I Llc | Fluid loss pills |
-
2011
- 2011-06-29 CN CN201110184349A patent/CN102311723A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136576A (en) * | 1995-02-21 | 1996-11-27 | 菲利浦石油公司 | Composite composed of polymer containing acrylicamide and its use method |
| CN1890345A (en) * | 2003-12-11 | 2007-01-03 | 切夫里昂菲利普化学有限责任公司 | Methods of reducing fluid loss in a wellbore servicing fluid |
| WO2007005499A1 (en) * | 2005-06-30 | 2007-01-11 | M-I Llc | Fluid loss pills |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20120111 |