Well drilling method and drilling fluid

Details Well drilling method and drilling fluid Well drilling method and drilling fluid

2006-06-06

2006-06-06

Bates, Zakiya W. (Department: 3676)

Boring or penetrating the earth

Processes

Boring with specific fluid

C175S064000, C175S069000, C507S102000, C507S128000

Reexamination Certificate

active

07055628

ABSTRACT:
A well drilling method comprises removing the drilling cuttings using an aqueous drilling fluid such as a foam including a foaming agent which includes at least one mono-(aliphatic hydrocarbyl) phosphate ester. More specifically, the drilling fluid takes the form of a potassium and/or alkanolamine and/or alkylalkanolamine salt, the foam also comprising a foam stabiliser.

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patent: 4615813 (1986-10-01), Bretz
patent: 5389607 (1995-02-01), Dartnell et al.
patent: 5714001 (1998-02-01), Savoly et al.
patent: 6251836 (2001-06-01), Duncum et al.
patent: 19954830 (2001-05-01), None
patent: 10035617 (2002-01-01), None

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