Wells
Means for guiding insertable element laterally of well axis
Secured in operative position by movable means engaging well...
Inventor
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Gene encoding one step cephalosporin C amidase and expression th
Kickover tool for placing and removing well flow control devices
One-step cephalosporin C amidase enzyme
Oriented valve and latch for side pocket mandrel
Retrievable sliding sleeve flow control valve for zonal...
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