CN102311725A - Preparation method for organosilicon viscosity reducer used for drilling fluid - Google Patents
Preparation method for organosilicon viscosity reducer used for drilling fluid Download PDFInfo
- Publication number
- CN102311725A CN102311725A CN201110184374A CN201110184374A CN102311725A CN 102311725 A CN102311725 A CN 102311725A CN 201110184374 A CN201110184374 A CN 201110184374A CN 201110184374 A CN201110184374 A CN 201110184374A CN 102311725 A CN102311725 A CN 102311725A
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- China
- Prior art keywords
- drilling fluid
- organosilicon
- preparation
- viscosity reducer
- organosilicon viscosity
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- 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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- Lubricants (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a preparation method for an organosilicon viscosity reducer used for drilling fluids. The method comprises the following steps: step one, adding 200 L of methylchlorosilane in a container containing 800 L of water, and carrying out cooling after complete reaction; step two, taking 200 kg of a cooled reactive substance in the step one, putting the substance into 650 L of water, adding 25 kg of a catalyst and 175 L of aqueous alkali with a concentration of 48% for complete reaction, and carrying out insulation for a period of time to obtain the organosilicon viscosity reducer. The organosilicon viscosity reducer used for drilling fluid prepared in the invention has high temperature resistance capability, strong inhibiting ability on hydration dispersion of clay under the condition of high temperature, a good high temperature rheological property and good lubricity.
Description
Technical field
The present invention relates to the preparation method of a kind of drilling fluid with the organosilicon viscosity-depression 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 the preparation method of a kind of drilling fluid with the organosilicon viscosity-depression agent; The organosilicon viscosity-depression agent that makes has high-temperature resistance; Under hot conditions, the aquation of clay is disperseed to have stronger inhibition ability, have the good high-temperature rheological simultaneously and have good lubricity.
The present invention has adopted following technical scheme: a kind of drilling fluid is with the preparation method of organosilicon viscosity-depression agent, and it may further comprise the steps: step 1, in the container that fills 800L water, add the 200L methyl chlorosilane, and fully react postcooling; Step 2 gets that cooled RM 200kg adds in the 650L water in the step 1, and adds fully reaction behind the alkaline solution 175L of catalyzer 25kg and 48%, obtains the organosilicon viscosity-depression agent after being incubated for some time at last.
Soaking time is 8h in the said step 2.
The present invention has following beneficial effect: the organosilicon viscosity-depression agent that the present invention makes has high-temperature resistance, under hot conditions, the aquation of clay is disperseed to have stronger inhibition ability, has the good high-temperature rheological simultaneously and has good lubricity.
Embodiment
The present invention is the preparation method of a kind of drilling fluid with the organosilicon viscosity-depression agent, and it may further comprise the steps: step 1, in the container that fills 800L water, add the 200L methyl chlorosilane, and fully react postcooling; Step 2 gets that cooled RM 200kg adds in the 650L water in the step 1, and adds fully reaction behind the alkaline solution 175L of catalyzer 25kg and 48%, obtains the organosilicon viscosity-depression agent after being incubated 8h at last.
Quality index
Claims (2)
1. a drilling fluid is with the preparation method of organosilicon viscosity-depression agent, and it may further comprise the steps:
Step 1 adds the 200L methyl chlorosilane in the container that fills 800L water, fully react postcooling;
Step 2 gets that cooled RM 200kg adds in the 650L water in the step 1, and adds fully reaction behind the alkaline solution 175L of catalyzer 25kg and 48%, obtains the organosilicon viscosity-depression agent after being incubated for some time at last.
2. drilling fluid according to claim 1 is characterized in that with the preparation method of organosilicon viscosity-depression agent soaking time is 8h in the said step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110184374A CN102311725A (en) | 2011-06-29 | 2011-06-29 | Preparation method for organosilicon viscosity reducer used for drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110184374A CN102311725A (en) | 2011-06-29 | 2011-06-29 | Preparation method for organosilicon viscosity reducer used for drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102311725A true CN102311725A (en) | 2012-01-11 |
Family
ID=45425301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110184374A Pending CN102311725A (en) | 2011-06-29 | 2011-06-29 | Preparation method for organosilicon viscosity reducer used for drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102311725A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1350047A (en) * | 2000-10-25 | 2002-05-22 | 宋福如 | High-temperature viscosity reducer for drilling fluid and its production process |
| CN101586022A (en) * | 2009-06-22 | 2009-11-25 | 陆明富 | Preparing method of silicon viscosity reducer for drilling fluid |
-
2011
- 2011-06-29 CN CN201110184374A patent/CN102311725A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1350047A (en) * | 2000-10-25 | 2002-05-22 | 宋福如 | High-temperature viscosity reducer for drilling fluid and its production process |
| CN101586022A (en) * | 2009-06-22 | 2009-11-25 | 陆明富 | Preparing method of silicon viscosity reducer for drilling fluid |
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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 |