Gel of an apolar medium, its use for the preparation of water-based drilling fluids
November 22, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3435898 3818989 Fluid for injection into a subterranean reservoir to displace hydrocarbons in the reservoir Gels of nonpolar liquids with N-acyl amino acids and derivatives thereof as gelling agents Air treating gel composition Method for fracturing subterranean formations Method of enhanced oil recovery using low tension viscous waterflood Polymer composition comprising phosphorous-containing gelling agent and process thereof Use of hydrocarbon-rich gels as fracturing fluids Temporary plugging agent InventorsAssigneeApplicationNo. 561725 filed on 11/22/1995US Classes:507/128, Organic component contains phosphorous attached directly or indirectly to carbon by nonionic bonding507/110, Organic component is carbohydrate or derivative thereof (e.g., sugar or gum, such as galactomannan, xanthan, etc.) or carboxylic acid ester of an alcohol which has five or more hydroxy groups bonded directly to carbons507/112, Carbohydrate is cellulose or derivative thereof507/113, Carboxyalkylcellulose (e.g., CMC, CMHEC, etc.)507/114, Hydroxyalkylcellulose (e.g., HEC, etc.)507/119, Polymer derived from acrylic acid monomer or derivative507/123, Hetero nitrogen ring is attached directly or indirectly to the ethylenic monomer by nonionic bonding507/124, Polymer contains vinyl alcohol unit507/129, Organic component contains nitrogen attached directly or indirectly to carbon by nonionic bonding507/132, Organic component contains a nitrogen attached directly to oxygen by nonionic bonding (e.g., nitroaromatic, amineoxide, etc.)507/136, Organic component contains ether linkage (e.g., PEG ether, etc.)507/140, Contains inorganic component other than water or clay507/235, Organic component contains phosphorus attached directly or indirectly to carbon by nonionic bonding516/77, Aqueous continuous liquid phase and discontinuous phase primarily solid (e.g., water based suspensions, dispersions, or certain sols*, of natural or synthetic ester-wax, beeswax, carnauba wax; or latex dispersion)516/100, The organic material coats, impregnates, or surface modifies solid inorganic material (e.g., dextrin modified clay)516/104The organic material contains organic compound containing oxygenExaminersPrimary: Tucker, PhilipForeign Patent References
International ClassesC09K 007/02B01J 013/00 Foreign Application Priority Data1994-11-28 FRAbstractThe invention relates to a gel made of apolar medium including:an apolar medium,a "multichain" liquid surface-active agent in acidic form, soluble or dispersible in the said apolar medium,an agent for neutralizing the said "multichain" surface-active agent,from 0.2 to 5 molecules of water per molecule of "multichain" surface-active agent,optionally at least one emulsifying agent and/or a solid filler which is soluble or insoluble in the apolar medium.This gel may be employed for the formulation of water-based drilling fluids.Other References
Field of SearchOrganic component is carbohydrate or derivative thereof (e.g., sugar or gum, such as galactomannan, etc.) or carboxylic acid ester of an alcohol which has five or more hydroxy groups bonded directly to carbonsPolysaccharide is a xanthan (e.g., scleroglucans, etc.) Organic component is carbohydrate or derivative thereof (e.g., sugar or gum, such as galactomannan, xanthan, etc.) or carboxylic acid ester of an alcohol which has five or more hydroxy groups bonded directly to carbons Carboxyalkylcellulose (e.g., CMC, CMHEC, etc.) Hydroxyalkylcellulose (e.g., HEC, etc.) Organic component contains phosphorus attached directly or indirectly to carbon by nonionic bonding Organic component contains phosphorous attached directly or indirectly to carbon by nonionic bonding Contains inorganic component other than water or clay Organic component contains nitrogen attached directly or indirectly to carbon by nonionic bonding Organic component contains a nitrogen attached directly to oxygen by nonionic bonding (e.g., nitroaromatic, amineoxide, etc.) Organic component contains ether linkage (e.g., PEG ether, etc.) |
| ||||||||||||||
