UST103401I4 - Use of carboxymethyl hydroxyethyl cellulose in fracturing fluids - Google Patents
Use of carboxymethyl hydroxyethyl cellulose in fracturing fluids Download PDFInfo
- Publication number
- UST103401I4 UST103401I4 US06/449,096 US44909682A UST103401I4 US T103401 I4 UST103401 I4 US T103401I4 US 44909682 A US44909682 A US 44909682A US T103401 I4 UST103401 I4 US T103401I4
- Authority
- US
- United States
- Prior art keywords
- carboxymethyl
- fracturing fluids
- hydroxyethyl cellulose
- hydroxyethyl
- carboxymethyl 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
- 229920003090 carboxymethyl hydroxyethyl cellulose Polymers 0.000 title abstract 2
- 239000012530 fluid 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
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 abstract 1
- -1 hydroxyethyl functionality Chemical group 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000002562 thickening agent Substances 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
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 is not normally considered a good candidate as a thickener for fracturing fluids for subterranean formations due to the poor salt sensitivity of its solutions. It has been found that if carboxymethyl cellulose is modified with hydroxyethyl functionality, the salt sensitivity of its aqueous solutions is improved to a point where it can be used in this application. Specifically, carboxymethyl hydroxyethyl cellulose having carboxymethyl D.S. of 0.7 to 1 and hydroxyethyl M.S. of 0.3 to 2 can be so employed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/449,096 UST103401I4 (en) | 1982-12-13 | 1982-12-13 | Use of carboxymethyl hydroxyethyl cellulose in fracturing fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/449,096 UST103401I4 (en) | 1982-12-13 | 1982-12-13 | Use of carboxymethyl hydroxyethyl cellulose in fracturing fluids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST103401I4 true UST103401I4 (en) | 1983-09-06 |
Family
ID=23782844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/449,096 Pending UST103401I4 (en) | 1982-12-13 | 1982-12-13 | Use of carboxymethyl hydroxyethyl cellulose in fracturing fluids |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST103401I4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060019834A1 (en) * | 2004-07-22 | 2006-01-26 | Mohand Melbouci | Water-based drilling fluids |
-
1982
- 1982-12-13 US US06/449,096 patent/UST103401I4/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060019834A1 (en) * | 2004-07-22 | 2006-01-26 | Mohand Melbouci | Water-based drilling fluids |
| US7384892B2 (en) * | 2004-07-22 | 2008-06-10 | Hercules Incorporated | Water-based drilling fluids |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STCF | Information on status: patent grant |
Free format text: PATENTED CASE |