CN114272648A - Organic silicon high-temperature resistant defoaming agent and production method thereof - Google Patents
Organic silicon high-temperature resistant defoaming agent and production method thereof Download PDFInfo
- Publication number
- CN114272648A CN114272648A CN202210090780.8A CN202210090780A CN114272648A CN 114272648 A CN114272648 A CN 114272648A CN 202210090780 A CN202210090780 A CN 202210090780A CN 114272648 A CN114272648 A CN 114272648A
- Authority
- CN
- China
- Prior art keywords
- temperature resistant
- defoaming agent
- reaction kettle
- emulsifier
- organic silicon
- 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
- 239000002518 antifoaming agent Substances 0.000 title claims abstract description 27
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 16
- 239000010703 silicon Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000003921 oil Substances 0.000 claims abstract description 25
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims abstract description 24
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 21
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 13
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 claims abstract description 12
- 229940063655 aluminum stearate Drugs 0.000 claims abstract description 12
- 235000019359 magnesium stearate Nutrition 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 7
- 229920002545 silicone oil Polymers 0.000 claims abstract description 7
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229940083037 simethicone Drugs 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 230000001804 emulsifying effect Effects 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims abstract description 3
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 8
- 239000000600 sorbitol Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- -1 sorbitol ester Chemical class 0.000 claims description 6
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical group OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 claims description 2
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 239000002002 slurry Substances 0.000 description 14
- 239000013505 freshwater Substances 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention discloses an organic silicon high-temperature resistant defoaming agent and a production method thereof. The organic silicon high-temperature resistant defoaming agent comprises the following components in percentage by weight: 15-30% of simethicone, 40-60% of white oil, 1-6% of emulsifier, 15-30% of magnesium stearate, 8-30% of aluminum stearate and 1-3% of dispersant. The invention relates to a production method of an organic silicon high-temperature resistant defoaming agent, which comprises the steps of firstly, respectively adding dimethyl silicone oil and white oil into a reaction kettle, heating to 90 ℃ after mixing and stirring, adding an emulsifier into the reaction kettle, stirring and emulsifying for 40 minutes, then respectively adding magnesium stearate and aluminum stearate into the reaction kettle, adding a dispersing agent into the reaction kettle while stirring for 40 minutes, and finally cooling to 30-40 ℃. The invention provides a defoaming agent suitable for drilling various complex wells such as deep wells, ultra-deep wells, directional wells, horizontal wells, exploratory wells and the like.
Description
Technical Field
The invention belongs to the field of oilfield chemistry, and relates to an organic silicon high-temperature resistant defoaming agent for drilling fluid and a production method thereof.
Background
In the process of petroleum drilling, in order to ensure that the density of the drilling fluid meets the design requirement, a defoaming agent is added into the slurry. However, in the complex drilling process of drilling deep wells, ultra-deep wells, complex wells, directional wells, horizontal wells and the like, the requirement cannot be met only by a common defoaming agent of the slurry, and a certain amount of high-quality high-temperature-resistant defoaming agent needs to be added into the slurry.
At present, defoaming agents in the market are mostly adopted at normal temperature. Defoamers at normal temperatures are only suitable for shallow wells and production wells. In the process of drilling deep wells, ultra-deep wells, complex wells, directional wells, horizontal wells and the like, high-heat gas generated in the deep layer forms bubbles due to the depth of the wells, so that the density of the drilled wells is reduced, and if a defoaming agent at normal temperature is added, the defoaming effect is lost when the deep layer is heated. The slurry has small density and large pressure difference, and is easy to cause major accidents of gas lift, drill sticking and well blowout, thereby causing major loss.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the defoaming agent which has high defoaming rate and strong temperature resistance and can be suitable for different wells (deep wells and ultra-deep wells) and the production method thereof.
The organic silicon high-temperature resistant defoaming agent is realized by the following technical scheme, and comprises the following components in percentage by weight: 15-30% of simethicone, 40-60% of white oil, 1-6% of emulsifier, 15-30% of magnesium stearate, 8-30% of aluminum stearate and 1-3% of dispersant.
The emulsifier is sorbitol or sorbitol ester emulsifier. Wherein the sorbitol ester emulsifier is sorbitol fatty acid ester, span-80 or span-85. The white oil is 10# white oil.
The production method of the organic silicon high-temperature resistant defoaming agent is characterized by comprising the following steps of: the organic silicon high-temperature resistant defoaming agent comprises the following components in percentage by weight: 15-30% of simethicone, 40-60% of white oil, 1-6% of emulsifier, 15-30% of magnesium stearate, 8-30% of aluminum stearate and 1-3% of dispersant; firstly, adding dimethyl silicone oil and white oil into a reaction kettle respectively, mixing and stirring, heating to 90 ℃, adding an emulsifier into the reaction kettle, stirring and emulsifying for 40 minutes, then adding magnesium stearate and aluminum stearate into the reaction kettle respectively, stirring for 40 minutes, then adding a dispersing agent into the reaction kettle, stirring for 40 minutes, and finally cooling to 30-40 ℃ to obtain the organic silicon high-temperature resistant defoaming agent for the drilling fluid.
According to the invention, the dimethyl silicone oil, the white oil, the emulsifier, the magnesium stearate and the aluminum stearate are organically mixed, heated and stirred, and completely reacted to obtain the organic silicon high-temperature resistant defoaming agent for the drilling fluid. It has low fluorescence, strong high temperature resistance and unsurpassed defoaming rate. The invention provides a defoaming agent suitable for drilling various complex wells such as deep wells, ultra-deep wells, directional wells, horizontal wells, exploratory wells and the like. In the process of drilling a deep well, an ultra-deep well and other complex wells, 0.2% of defoaming agent is added into the slurry, the defoaming rate reaches 100% or even more than 100% when the temperature reaches 230 ℃, and the serious accidents of gas lift, drilling sticking, blowout and the like which are easily caused by the fact that the drilling slurry is easy to foam and the slurry density is easy to reduce due to the fact that the well depth is influenced by the high temperature of the geothermal heat of the stratum are avoided.
Detailed Description
The present invention will be described in detail with reference to specific examples.
Simethicone, a product of Beijing tetracyclic Antong commerce and trade company Limited is selected.
Example 1
1200kg of white oil is added into a reaction kettle, the white oil is heated to 90 ℃, 600kg of dimethyl silicone oil is added into the white oil, the white oil and the emulsifier are mixed and heated to 90 ℃, 46kg of the emulsifier is added into the reaction kettle, the mixture is stirred for 30 minutes, 300kg of aluminum stearate and 600kg of magnesium stearate are respectively added into the reaction kettle which is in reaction for stirring, and after the mixture is stirred for 40 minutes, 30kg of dispersing agent is added into the reaction kettle and stirred for 40 minutes. The product is detected, and after the fresh water slurry and the salt water slurry are loaded and rolled for 16 hours at 230 ℃, the defoaming rate of the fresh water is 100 percent, and the defoaming rate of the salt water is 101.15 percent.
Example 2
1150kg of white oil is added into a reaction kettle, the white oil is heated to 90 ℃, 600kg of dimethyl silicone oil is added into the white oil, the white oil and the emulsifier are mixed and heated to 90 ℃, 48kg of the emulsifier is added into the reaction kettle, the mixture is stirred for 30 minutes, 500kg of aluminum stearate and 300kg of magnesium stearate are respectively added into the reaction kettle which is in reaction and stirred, 40kg of dispersing agent is added into the reaction kettle and stirred for 40 minutes after the mixture is stirred for 40 minutes. The product is detected, and after the fresh water slurry and the salt water slurry are loaded and rolled for 16 hours at 230 ℃, the defoaming rate of the fresh water is 102 percent and the defoaming rate of the salt water is 108 percent.
Example 3
1100kg of white oil is added into a reaction kettle, the white oil is heated to 90 ℃, 630kg of dimethyl silicone oil is added into the white oil, the white oil and the emulsifier are mixed and heated to 90 ℃, 50kg of the emulsifier is added into the reaction kettle, the mixture is stirred for 30 minutes, 480kg of aluminum stearate and 320kg of magnesium stearate are respectively added into the reaction kettle which is in reaction for stirring, and after the mixture is stirred for 40 minutes, 45kg of dispersing agent is added into the reaction kettle and stirred for 40 minutes. The product is detected, and after the fresh water slurry and the salt water slurry are loaded and rolled for 16 hours at 230 ℃, the defoaming rate of the fresh water is 103 percent, and the defoaming rate of the salt water is 118.18 percent.
The defoaming agent obtained in the three embodiments is respectively added into fresh water and salt cement slurry systems according to the addition of 0.2%, tests are carried out on deep wells, ultra-deep wells, directional wells, exploratory wells and production wells, and in the test process, the phenomenon of density reduction and blowout accidents do not occur, so that the field recognition is obtained.
The product of the invention is milky white and yellowish free-flowing liquid in color, while other common products are white or colorless transparent liquids. The product has good defoaming performance, strong temperature resistance and 230 ℃ resistance. Meanwhile, the organic silicon high-temperature resistant defoaming agent is also suitable for the well cementing fluid, and is an important characteristic for distinguishing other defoaming rates.
Claims (4)
1. An organic silicon high-temperature resistant defoaming agent is characterized by comprising the following components in percentage by weight: 15-30% of simethicone, 40-60% of white oil, 1-6% of emulsifier, 15-30% of magnesium stearate, 8-30% of aluminum stearate and 1-3% of dispersant.
2. The organosilicon high temperature resistant antifoaming agent of claim 1, wherein the emulsifier is sorbitol or sorbitol ester emulsifier, and the sorbitol ester emulsifier is selected from sorbitol fatty acid ester, span-80 or span-85.
3. The silicone high temperature resistant defoamer as set forth in claim 1, wherein said white oil is # 10 white oil.
4. The production method of the organic silicon high-temperature resistant defoaming agent is characterized by comprising the following steps of: the organic silicon high-temperature resistant defoaming agent comprises the following components in percentage by weight: 15-30% of simethicone, 40-60% of white oil, 1-6% of emulsifier, 15-30% of magnesium stearate, 8-30% of aluminum stearate and 1-3% of dispersant; firstly, adding dimethyl silicone oil and white oil into a reaction kettle respectively, mixing and stirring, heating to 90 ℃, adding an emulsifier into the reaction kettle, stirring and emulsifying for 40 minutes, then adding magnesium stearate and aluminum stearate into the reaction kettle respectively, stirring for 40 minutes, then adding a dispersing agent into the reaction kettle, stirring for 40 minutes, and finally cooling to 30-40 ℃ to obtain the organic silicon high-temperature resistant defoaming agent for the drilling fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210090780.8A CN114272648A (en) | 2022-01-26 | 2022-01-26 | Organic silicon high-temperature resistant defoaming agent and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210090780.8A CN114272648A (en) | 2022-01-26 | 2022-01-26 | Organic silicon high-temperature resistant defoaming agent and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114272648A true CN114272648A (en) | 2022-04-05 |
Family
ID=80881535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210090780.8A Pending CN114272648A (en) | 2022-01-26 | 2022-01-26 | Organic silicon high-temperature resistant defoaming agent and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114272648A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403646A (en) * | 2014-10-24 | 2015-03-11 | 中国石油天然气集团公司 | High temperature resistant emulsifier for oil based drilling fluid, preparation method and application thereof |
| CN105238367A (en) * | 2015-10-23 | 2016-01-13 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Environment-friendly defoaming agent for well drilling and preparation method thereof |
| CN106621478A (en) * | 2016-11-23 | 2017-05-10 | 北京麦尔化工科技有限公司 | Light-colored mineral oil de-foaming agent and preparation method thereof |
| CN108690576A (en) * | 2018-05-02 | 2018-10-23 | 中国石油大学(华东) | A kind of high temperature resistant lubricant for drilling liquid and preparation method thereof |
-
2022
- 2022-01-26 CN CN202210090780.8A patent/CN114272648A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403646A (en) * | 2014-10-24 | 2015-03-11 | 中国石油天然气集团公司 | High temperature resistant emulsifier for oil based drilling fluid, preparation method and application thereof |
| CN105238367A (en) * | 2015-10-23 | 2016-01-13 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Environment-friendly defoaming agent for well drilling and preparation method thereof |
| CN106621478A (en) * | 2016-11-23 | 2017-05-10 | 北京麦尔化工科技有限公司 | Light-colored mineral oil de-foaming agent and preparation method thereof |
| CN108690576A (en) * | 2018-05-02 | 2018-10-23 | 中国石油大学(华东) | A kind of high temperature resistant lubricant for drilling liquid and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王卫东等: "钻井液用缓释复合消泡剂的研制与应用", 《油田化学》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11008496B2 (en) | Composition for preparing anti-wear lubricant for drilling fluid and preparation method of anti-wear lubricant for drilling fluid and drilling fluid | |
| CN101255304B (en) | Tung oil modified JS waterproofing paint and preparation thereof | |
| CN103146364A (en) | Strong-inhibition water-base drilling fluid | |
| NO326424B1 (en) | Cementing product and use for cementing oil wells and the like | |
| CN102863584B (en) | Preparation method for macromolecule emulsion coating agent for drilling fluid | |
| CN105238367A (en) | Environment-friendly defoaming agent for well drilling and preparation method thereof | |
| CN109762414A (en) | Based on the modified heat retaining and insulated waterproof coating and preparation method thereof of aerosil | |
| CN109824822A (en) | Temperature response type high temperature retarder suitable for oil gas well cementing operation and preparation method thereof and cementing slurry | |
| CN113462218A (en) | Novel fireproof, high-temperature-resistant, anticorrosive and heat-insulating coating for petroleum pipelines | |
| CN112358864A (en) | Nano emulsion acid system and preparation method and application thereof | |
| CN114272648A (en) | Organic silicon high-temperature resistant defoaming agent and production method thereof | |
| CN106967395A (en) | A kind of high density, light viscosity oil base drilling fluid | |
| CN106634886B (en) | Viscosity depressant for drilling fluid fluosilicic polymer and preparation method thereof | |
| CN105131915B (en) | A kind of high temperature high density Solid Free drilling workers system | |
| CN105906248A (en) | Low-temperature early-strength salt-resistant well cement slurry system | |
| CN104804716B (en) | Well cementation anti-channeling nonionic styrene-butadiene latex and preparation method thereof | |
| CN106243289A (en) | A kind of concrete early strength agent and preparation method thereof | |
| CN106467728A (en) | A kind of anti-pollutant and preparation method thereof and a kind of water-based insulating liquid | |
| CN108587577A (en) | A kind of preparation method of automobile engine cooling liquid | |
| CN107541194B (en) | Plant white clay oil drilling fluid lubricant and preparation method thereof | |
| CN103642470A (en) | Preparation and using methods of diluent for oil-based drilling fluid | |
| CN112708497B (en) | Concrete release agent and preparation method thereof | |
| CN106084405A (en) | A kind of heat insulation pressure resistant type construction material and preparation method thereof | |
| CN109652030B (en) | Flow pattern regulator and large-temperature-difference constant-rheology oil-based drilling fluid | |
| US7259130B2 (en) | Set-on demand, ester-based wellbore fluids and methods of using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220405 |