06063737 is referenced by 46 patents and cites 7 patents.

An aqueous displacement fluid composition is used as a spacer fluid composition to change one type of drilling mud for another type of drilling mud or in cementing operations downhole, to clean downhole hardware in wellbores. The method comprises introducing into a wellbore an aqueous displacement fluid composition, such as a spacer fluid, to displace downhole wellbore fluids, having an improved rate of emulsification and a high capacity for emulsifying hydrocarbons, and aqueous fluid compositions. The aqueous displacement fluid composition introduced into wellbores contain mixtures of:

Title
Aqueous displacement fluid compositions for use in wellbores
Application Number
8/874062
Publication Number
6063737
Application Date
June 12, 1997
Publication Date
May 16, 2000
Inventor
James Jang Woo Nahm
Houston
TX, US
Leonard Michael Haberman
Cypress
TX, US
Agent
Dennis V Carmen
Assignee
Shell Oil Company
TX, US
IPC
E21B 21/00
E21B 33/13
C09K 3/00
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