Drilling fluids containing an additive composition
US4064056A · kind A · utility
7Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1976 |
| Grant date | Dec 20, 1977 |
| Priority date | — |
| Expiry date | Jun 28, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Aqueous drilling fluids containing a minor amount of an additive composition. Such fluids are especially useful where reduced torque drilling fluids are needed. Another embodiment of this invention relates to a method of drilling utilizing the above-described fluids. The additive is a composition containing a particular emulsifying agent, a petroleum oil carrier, tetraethylene oxide -- nonyl phenol adduct, ethylene glycol monobutyl ether, hexahydro 1, 3, 5-triethyl -s-triazine, tri-isopropanolamine and optionally ditertiary alkyl polysulfide, a chlorinated hydrocarbon, and zinc dialkyl dithiophosphate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.