JPS5723671A - Muddy water preparation agent for excavation - Google Patents
Muddy water preparation agent for excavationInfo
- Publication number
- JPS5723671A JPS5723671A JP9685580A JP9685580A JPS5723671A JP S5723671 A JPS5723671 A JP S5723671A JP 9685580 A JP9685580 A JP 9685580A JP 9685580 A JP9685580 A JP 9685580A JP S5723671 A JPS5723671 A JP S5723671A
- Authority
- JP
- Japan
- Prior art keywords
- muddy water
- excavation
- bentonite
- preparation agent
- copolymer
- 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.)
- Granted
Links
Abstract
PURPOSE: A bentonite muddy water preparation agent for stabilizing excavation that is composed of a modified polyvinyl alcohol obtained by saponification of an ethylenically unsaturated carboxylic acid and vinyl acetate copolymer, thus showing high caving prevention and having good visocity and bentonite dispersing properties.
CONSTITUTION: After copolymerization of (A) an ethylenically unsaturated carboxylic acid such as acrylic acid or maleic acid, its ester or salt and (B) vinyl acetate, the copolymer, preferably of 200W2,600 polymerization degree, is saponified, preferably to a level of more than 60mol% to prepare a modified polyvinyl alcohol, which is used as a muddy water preparation agent. The amount of component A is preferably 0.05W20mol% based on the total copolymer. Further, in the stabilized muddy water consisting of water and bentonite, the amount of ventonite is 1W20pts.wt. and the modified PVA, 0.01W20pts.per 100pts. of water, thus giving preferably stabilized muddy water for excavation.
USE: It is suitably used for foundation work in construction work and boring of petroleum wells.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9685580A JPS5723671A (en) | 1980-07-17 | 1980-07-17 | Muddy water preparation agent for excavation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9685580A JPS5723671A (en) | 1980-07-17 | 1980-07-17 | Muddy water preparation agent for excavation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5723671A true JPS5723671A (en) | 1982-02-06 |
JPH0134279B2 JPH0134279B2 (en) | 1989-07-18 |
Family
ID=14176088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9685580A Granted JPS5723671A (en) | 1980-07-17 | 1980-07-17 | Muddy water preparation agent for excavation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5723671A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58219289A (en) * | 1982-06-15 | 1983-12-20 | Shimizu Constr Co Ltd | Muddy water for muddy water working method |
JPS59135280A (en) * | 1983-01-24 | 1984-08-03 | Nippon Shokubai Kagaku Kogyo Co Ltd | Conditioner for muddy water for excavation of high temperature ground |
JP2011057769A (en) * | 2009-09-08 | 2011-03-24 | Kuraray Co Ltd | Dispersant for muddy water |
WO2015099131A1 (en) * | 2013-12-26 | 2015-07-02 | 日本合成化学工業株式会社 | Drilling fluid adjustment agent and drilling fluid using same |
US9475900B2 (en) | 2013-12-11 | 2016-10-25 | The Nippon Synthetic Chemical Industry Co., Ltd. | Drilling fluid additive |
CN110396151A (en) * | 2019-07-31 | 2019-11-01 | 西南石油大学 | A kind of pH response type preparation method for bentonite that HPAA is compound |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4961004A (en) * | 1972-05-05 | 1974-06-13 | ||
JPS5395801A (en) * | 1977-01-21 | 1978-08-22 | Hercules Inc | Method fo recovering hydrocarbon from underground layer |
-
1980
- 1980-07-17 JP JP9685580A patent/JPS5723671A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4961004A (en) * | 1972-05-05 | 1974-06-13 | ||
JPS5395801A (en) * | 1977-01-21 | 1978-08-22 | Hercules Inc | Method fo recovering hydrocarbon from underground layer |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58219289A (en) * | 1982-06-15 | 1983-12-20 | Shimizu Constr Co Ltd | Muddy water for muddy water working method |
JPS621671B2 (en) * | 1982-06-15 | 1987-01-14 | Shimizu Construction Co Ltd | |
JPS59135280A (en) * | 1983-01-24 | 1984-08-03 | Nippon Shokubai Kagaku Kogyo Co Ltd | Conditioner for muddy water for excavation of high temperature ground |
JPS6329912B2 (en) * | 1983-01-24 | 1988-06-15 | Nippon Shokubai Kagaku Kogyo Kk | |
JP2011057769A (en) * | 2009-09-08 | 2011-03-24 | Kuraray Co Ltd | Dispersant for muddy water |
US9475900B2 (en) | 2013-12-11 | 2016-10-25 | The Nippon Synthetic Chemical Industry Co., Ltd. | Drilling fluid additive |
WO2015099131A1 (en) * | 2013-12-26 | 2015-07-02 | 日本合成化学工業株式会社 | Drilling fluid adjustment agent and drilling fluid using same |
JP2015143356A (en) * | 2013-12-26 | 2015-08-06 | 日本合成化学工業株式会社 | Drilling fluid modifier and drilling fluid using the same |
CN110396151A (en) * | 2019-07-31 | 2019-11-01 | 西南石油大学 | A kind of pH response type preparation method for bentonite that HPAA is compound |
CN110396151B (en) * | 2019-07-31 | 2021-08-10 | 西南石油大学 | Preparation method of HPAA (high Performance alkaline acrylic acid) composite pH-responsive bentonite |
Also Published As
Publication number | Publication date |
---|---|
JPH0134279B2 (en) | 1989-07-18 |
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