GLASS TUBING FOR PRODUCTION

Brand	Owner (click to sort)	Address	Description
DENSOCAN	SCHOTT AKTIENGESELLSCHAFT	Hattenbergstr. 10 55122 Mainz Germany	Glass Tubing for the Production of Ampoules and Vials;
FIOLAX	SCHOTT AG	Hattenbergstrasse 10 55122 Mainz Germany	Glass Tubing for the Production of Pharmaceutical Containers;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Embodiments include providing a gas lift system comprising production tubing disposed within a wellbore, the production tubing capable of allowing fluid flow in a first direction from outside the production tubing through a wall of the production tubing to inside the production tubing to introduce a gas into the bore of the production tubing, while preventing fluid flow in a second direction from inside the production tubing through the wall of the production tubing to outside the production tubing. In one aspect, fluid flow in the second direction is prevented by operation of at least two valve members disposed within a side pocket of a side pocket mandrel in the production tubing. At least one of the valve members is capable of preventing fluid flow in the second direction even when the other valve member is removed from the wellbore or is at least partially inoperative.