http://www.csmiracleland.com Wireline double tube core barrels are primarily used in deep coring. With an overshot device, they eliminate the need to ...
Product Description Core Barrels: Generally, there are three kinds of core barrel depending on the tube quantity of the core barrel. Double Tube Core ...
http://www.corebit.cnProduct Description Product Description Overshots: Overshot is a necessary device in wireline drilling. It is dropped on a cable ...
http://www.csmiracleland.comProduct Description Overshots: Overshot is a necessary device in wireline drilling. It is dropped on a cable and directly ...
http://www.csmiracleland.com/23-core-barrels Product Description Wireline double tube core barrels are primarily used in deep coring. With an overshot ...