LIQUID WELL DRILLING ADDITIVE FOR USE

Brand	Owner	Address	Description
UNI-DRILL	WYO-BEN, INC.	1345 Discovery Drive Billings MT 59102	Liquid Well-Drilling Additive for Use in Controlling Fluid Loss and Increasing Viscosity;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

The present invention provides a filter assembly containing a filter element and a container as a depot for a liquid additive. The container can include an inlet and an outlet, which are configured to allow a liquid to flow into the container mix with the contained additive and then flow out into the system. It has been observed that a liquid flowing through a filter assembly exhibits a pressure gradient within the filter. Consequently, the inlets and outlets to the container can be positioned to take advantage of the pressure gradient to enhance the addition of the additive to the liquid in the filter assembly.