UST104401I4 - Carboxymethyl hydroxyethyl cellulose as a thickener for drilling mud - Google Patents
Carboxymethyl hydroxyethyl cellulose as a thickener for drilling mud Download PDFInfo
- Publication number
- UST104401I4 UST104401I4 US06/448,136 US44813682A UST104401I4 US T104401 I4 UST104401 I4 US T104401I4 US 44813682 A US44813682 A US 44813682A US T104401 I4 UST104401 I4 US T104401I4
- Authority
- US
- United States
- Prior art keywords
- thickener
- carboxymethyl
- hydroxyethyl cellulose
- drilling mud
- hydroxyethyl
- 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 abstract 3
- 229920003090 carboxymethyl hydroxyethyl cellulose Polymers 0.000 title abstract 2
- 239000002562 thickening agent Substances 0.000 title abstract 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 abstract 2
- 239000001768 carboxy methyl cellulose Substances 0.000 abstract 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 abstract 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 230000035945 sensitivity Effects 0.000 abstract 2
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 159000000007 calcium salts Chemical class 0.000 abstract 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 abstract 1
- -1 hydroxyethyl functionality Chemical group 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/06—Clay-free compositions
- C09K8/08—Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
- C09K8/10—Cellulose or derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Carboxymethyl cellulose has not heretofore been universally useful as a thickener for drilling muds due to sensitivity of its aqueous solutions to the high level of inorganic salts contained in such muds. The inclusion in the carboxymethyl cellulose of hydroxyethyl functionality reduces this salt sensitivity to a level where it can be employed to thicken drilling muds, even those containing calcium salts. Carboxymethyl hydroxyethyl cellulose of carboxymethyl D.S. of 0.1 to 1.0 and hydroxyethyl M.S. of 0.5 to 2.5 are useful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/448,136 UST104401I4 (en) | 1982-12-09 | 1982-12-09 | Carboxymethyl hydroxyethyl cellulose as a thickener for drilling mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/448,136 UST104401I4 (en) | 1982-12-09 | 1982-12-09 | Carboxymethyl hydroxyethyl cellulose as a thickener for drilling mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST104401I4 true UST104401I4 (en) | 1984-07-03 |
Family
ID=23779148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/448,136 Pending UST104401I4 (en) | 1982-12-09 | 1982-12-09 | Carboxymethyl hydroxyethyl cellulose as a thickener for drilling mud |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST104401I4 (en) |
-
1982
- 1982-12-09 US US06/448,136 patent/UST104401I4/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STPP | Information on status: patent application and granting procedure in general |
Free format text: DEFENSIVE PUBLICATION OR SIR FILE |