crabgrass preventer

... used in testing the pressure of casing string and blowout preventer stack in drilling or field.When the oil,air or ... works for primary laying pressure tesitng for casing and blowout preventer stack ,adoption of this tool shall be easy and reliable ...

... -mounted BOP stacks are used to open and close Blowout Preventer and Choke Valve while drilling oil and gas well.Its ...

... bop1.description of suck rod bop The Sucker Rod Blowout Preventer is used to prevent oil and gas from leaking, and ...

... water.usageit is mainly used for deodorization,germ filter,dust preventer and etc.specificationsurface area 900-1100m2/g, 1200-1300m2/g ...

... temperature is below 220 degrees 5.1 x independent backflow preventer and branching seat, glue quantity gule melting station

... to control the opening and closing of the rotary blowout preventer, and hydraulic servo system is use 1. Control objectsThe ... rotary blowout preventer control system is used to control the surface rotary blowout ... control the opening and closing of the surface rotary blowout preventer. Main functions: Hydraulic pressure is used to control the ...

... done strictly. The equipments mainly include annular and ram blowout preventer(BOP), BOP remote control and different combined manifolds etc.Kill ...