CN102336867A - Preparation method of tackifier for drilling fluid - Google Patents
Preparation method of tackifier for drilling fluid Download PDFInfo
- Publication number
- CN102336867A CN102336867A CN2011101843843A CN201110184384A CN102336867A CN 102336867 A CN102336867 A CN 102336867A CN 2011101843843 A CN2011101843843 A CN 2011101843843A CN 201110184384 A CN201110184384 A CN 201110184384A CN 102336867 A CN102336867 A CN 102336867A
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- Prior art keywords
- tackifier
- drilling fluid
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- preparation
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- Prior art date
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- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 239000012530 fluid Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000243 solution Substances 0.000 claims abstract description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 12
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000007864 aqueous solution Substances 0.000 claims abstract description 10
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims abstract description 6
- 239000003999 initiator Substances 0.000 claims abstract description 6
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims abstract description 6
- 239000000376 reactant Substances 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 239000008098 formaldehyde solution Substances 0.000 claims description 2
- 229910001425 magnesium ion Inorganic materials 0.000 abstract description 3
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005453 pelletization Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 125000000129 anionic group Chemical group 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
- 238000012423 maintenance Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a preparation method of a tackifier for a drilling fluid. The method comprises the following steps of: adding 71 kg of acrylamide and 700 kg of water into a polymerizing kettle, preparing a 20 percent acrylamide aqueous solution, adding 0.1 kg of initiator after a certain period of time, and reacting at constant temperature for a certain period of time to obtain gel polyacrylamide; taking the gel polyacrylamide out, pelletizing, and preparing into 2 percent polyacrylamide aqueous solution; adjusting the pH of a system to 11 with a sodium hydroxide solution, adding 85 kg of formaldehyde and 100 kg of sodium bisulfite aqueous solution, and reacting with stirring for a certain period of time to obtain sulfomethylated polyacrylamide gel; precipitating and separating reactants with 95 percent ethanol, and recycling and distilling an ethanol aqueous solution for circular use; and taking a precipitated polymer, removing ethanol, drying in vacuum and crushing to obtain a product. The tackifier has large tackifying and flow pattern adjusting capabilities, and can be used for keeping the viscosity of the drilling fluid under severe conditions such as high temperature, high salinity, high calcium-magnesium ions and the like.
Description
Technical field
The present invention relates to the preparation method of a kind of drilling fluid with tackifier.
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 the preparation method of a kind of drilling fluid with tackifier; The tackifier that it makes have good tackify and regulate the ability of flow pattern; Temperature resistance, saline-alkaline tolerance are strong; Can under severe condition such as high temperature, high salt, high contents of calcium and magnesium ion, keep the viscosity of drilling fluid, also have the good leakage ability of falling simultaneously, be applicable to the water-based drilling liquid system.
The present invention has adopted following technical scheme: a kind of drilling fluid is with the preparation method of tackifier; It may further comprise the steps: step 1; 71kg acrylic amide and 700kg water are added polymeric kettle, be stirred to the acrylic amide dissolving, be made into 20% acrylamide solution; Letting nitrogen in and deoxidizing adds the 0.1kg initiator after for some time, get the gel SEPIGEL 305 after isothermal reaction for some time; Step 2 is taken out granulation with the gel SEPIGEL 305, adds entry, under stirring action, is mixed with 2% polyacrylamide solution; Step 3 transfers to 11 with sodium hydroxide solution with system pH earlier, adds 85kg formaldehyde and 100kg aqueous solution of sodium bisulfite again, and stirring reaction gets the sulfomethylation polyacrylamide colloid after for some time; Step 4 is cooled to room temperature with reactant, and discharging separates with 95% ethanol sedimentation, and aqueous ethanolic solution recycles after recovery, rectifying; Step 5 is taken out the polymkeric substance that is settled out, and after logical hot blast is removed ethanol, gets product after vacuum-drying, the pulverizing.
The time of isothermal reaction is 4-8h in the said step 1; The letting nitrogen in and deoxidizing time is 30min in the said step 1, adds the 0.1kg initiator down at 35 ℃; The time of stirring reaction is 5h in the said step 3; Be warming up to 60-75 ℃ earlier after pH transfers to 11 in the said step 3, add formaldehyde and aqueous solution of sodium bisulfite again; Vacuum drying temperature is 50-60 ℃ in the said step 5.
The present invention has following beneficial effect: the present invention obtain through refining tackifier are the strict polymkeric substance of the high average molecular of a kind of anionic; Soluble in water, the water-soluble weakly alkaline that is has good tackify and regulates the ability of flow pattern; Temperature resistance, saline-alkaline tolerance are strong; Can under severe condition such as high temperature, high salt, high contents of calcium and magnesium ion, keep the viscosity of drilling fluid, also have the good leakage ability of falling simultaneously, be applicable to the water-based drilling liquid system.
Embodiment
The invention provides the preparation method of a kind of drilling fluid with tackifier; It may further comprise the steps: step 1; 71kg acrylic amide and 700kg water are added polymeric kettle, be stirred to the acrylic amide dissolving, be made into 20% acrylamide solution; Under 35 ℃, add the 0.1kg initiator behind the letting nitrogen in and deoxidizing 30min, get the gel SEPIGEL 305 behind the isothermal reaction 4-8h; Step 2 is taken out granulation with the gel SEPIGEL 305, adds entry, under stirring action, is mixed with 2% polyacrylamide solution; Step 3 transfers to 11 with sodium hydroxide solution with system pH earlier, is warming up to 60-75 ℃ then, adds 85kg formaldehyde and 100kg aqueous solution of sodium bisulfite again, gets the sulfomethylation polyacrylamide colloid behind the stirring reaction 5h; Step 4 is cooled to room temperature with reactant, and discharging separates with 95% ethanol sedimentation, and aqueous ethanolic solution recycles after recovery, rectifying; Step 5 is taken out the polymkeric substance that is settled out, and after logical hot blast is removed ethanol, after 50-60 ℃ of following vacuum-drying, pulverizing, gets product.
Drilling fluid uses the technical indicator of tackifier to do
| Project | Index |
| Outward appearance | Pale yellow powder |
| Moisture, % | ≤7.0 |
| PH value (1% aqueous solution) | 9-10 |
| 1% solution viscosity, mPa.s | ≥50.0 |
Claims (6)
1. a drilling fluid is with the preparation method of tackifier, and it may further comprise the steps:
Step 1 adds polymeric kettle with 71kg acrylic amide and 700kg water, is stirred to the acrylic amide dissolving, is made into 20% acrylamide solution, and letting nitrogen in and deoxidizing adds the 0.1kg initiator after for some time, gets the gel SEPIGEL 305 after isothermal reaction for some time;
Step 2 is taken out granulation with the gel SEPIGEL 305, adds entry, under stirring action, is mixed with 2% polyacrylamide solution;
Step 3 transfers to 11 with sodium hydroxide solution with system pH earlier, adds 85kg formaldehyde and 100kg aqueous solution of sodium bisulfite again, and stirring reaction gets the sulfomethylation polyacrylamide colloid after for some time;
Step 4 is cooled to room temperature with reactant, and discharging separates with 95% ethanol sedimentation, and aqueous ethanolic solution recycles after recovery, rectifying;
Step 5 is taken out the polymkeric substance that is settled out, and after logical hot blast is removed ethanol, gets product after vacuum-drying, the pulverizing.
2. a kind of drilling fluid according to claim 1 is with the preparation method of tackifier, and the time that it is characterized in that isothermal reaction in the said step 1 is 4-8h.
3. a kind of drilling fluid according to claim 1 is characterized in that with the preparation method of tackifier the letting nitrogen in and deoxidizing time is 30min in the said step 1, adds the 0.1kg initiator down at 35 ℃.
4. a kind of drilling fluid according to claim 1 is with the preparation method of tackifier, and the time that it is characterized in that stirring reaction in the said step 3 is 5h.
5. a kind of drilling fluid according to claim 1 is characterized in that being warming up to 60-75 ℃ earlier after pH transfers to 11 in the said step 3 with the preparation method of tackifier, adds formaldehyde and aqueous solution of sodium bisulfite again.
6. a kind of drilling fluid according to claim 1 is characterized in that with the preparation method of tackifier vacuum drying temperature is 50-60 ℃ in the said step 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101843843A CN102336867A (en) | 2011-06-29 | 2011-06-29 | Preparation method of tackifier for drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101843843A CN102336867A (en) | 2011-06-29 | 2011-06-29 | Preparation method of tackifier for drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102336867A true CN102336867A (en) | 2012-02-01 |
Family
ID=45512847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101843843A Pending CN102336867A (en) | 2011-06-29 | 2011-06-29 | Preparation method of tackifier for drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102336867A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231132A (en) * | 2013-06-21 | 2014-12-24 | 中国石油天然气股份有限公司 | A kind of multifunctional oil displacement polymer and preparation method thereof |
| CN109265585A (en) * | 2018-09-26 | 2019-01-25 | 陕西科技大学 | A kind of sulfonic group hydroxymethyl polyacrylamide and its synthetic method |
| CN110029660A (en) * | 2019-02-15 | 2019-07-19 | 中科兴创（北京）科技有限公司 | The construction technology of polymer mud retaining wall is used in a kind of rotary drilling rig work progress |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108164A (en) * | 1985-12-03 | 1987-08-19 | 诺尔科化学公司 | Polymer containing sulfomethylamide and its preparation method |
| CN101239775A (en) * | 2007-02-09 | 2008-08-13 | 中国石油化工股份有限公司 | Method for preparing amphiprotic sludge dehydrant |
-
2011
- 2011-06-29 CN CN2011101843843A patent/CN102336867A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108164A (en) * | 1985-12-03 | 1987-08-19 | 诺尔科化学公司 | Polymer containing sulfomethylamide and its preparation method |
| CN101239775A (en) * | 2007-02-09 | 2008-08-13 | 中国石油化工股份有限公司 | Method for preparing amphiprotic sludge dehydrant |
Non-Patent Citations (1)
| Title |
|---|
| 张凤莲等: "聚丙烯酰胺磺甲基化改性在钻井泥浆中的应用", 《黑龙江大学学报(自然科学版)》, 2 April 1979 (1979-04-02), pages 90 - 97 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231132A (en) * | 2013-06-21 | 2014-12-24 | 中国石油天然气股份有限公司 | A kind of multifunctional oil displacement polymer and preparation method thereof |
| CN109265585A (en) * | 2018-09-26 | 2019-01-25 | 陕西科技大学 | A kind of sulfonic group hydroxymethyl polyacrylamide and its synthetic method |
| CN110029660A (en) * | 2019-02-15 | 2019-07-19 | 中科兴创（北京）科技有限公司 | The construction technology of polymer mud retaining wall is used in a kind of rotary drilling rig work progress |
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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 |
Application publication date: 20120201 |