Method of drilling a borehole

Details Method of drilling a borehole Method of drilling a borehole

2006-02-07

2006-02-07

Suchfield, George (Department: 3672)

Boring or penetrating the earth

Processes

Boring with specific fluid

C175S065000, C507S103000, C507S119000, C507S131000, C507S134000, C507S135000, C507S138000, C507S139000, C507S145000

Reexamination Certificate

active

06994173

ABSTRACT:
A method for drilling a borehole employing a drilling fluid including an additive comprising a glucose derivative with pH lowering acid, buffers and surface active agents. The drilling fluid additive preferably exhibits the following properties: activity of approximately 30%–45% in water solution; pH of about 4.5 to 5.5; a light amber to clear liquid appearance and a density of approximately 1.200 grams per cubic centimeter.

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