Choke manifold

Descripción del producto

1、 Application 　　Choke manifold is necessary device to control thewell kick successfully and execute the pressure controltechnology on oil/gas well in the course of drilling, as itis, the device is adopted to execute new drilling-well'stechnique of balance pressure, which can avoid pollu-tion of oil-layer, improve the speed of drilling and con-trol blowout effectively. One end of the device connectswith the side flange of BOP spool. When BOP closes, itcan control the finite pressure from casing by adjustingthe choke valve's opening, so balanced drilling can workunder minimum pressure-difference. 　　2、 Assembly & structure 　　Choke manifold consists of choke valve, gate valve, pipeline, fittings and pressure gauge etc, see gate valvepart and choke valve part in the above drawing 　　3、 Working principle 　　When the pressure rising in well, fluid in well canbe released in utilization of the choke valve opening/closing in choke manifold to control casing pressure, which can directly blow out through gate valve as thecasing pressure is quite high. 　　4、 Specification 　　Pressure level is divided into five levels, ***** *4MPa, *1MPa, *5MPa, *0MPa and **5MPa, it can be also de-signed according to the requirement of customer. 　　5、 Operation requirement 　　（1） All the working pressures of parts in choke mani-fold should be matched with the working pressure ofthe BOP stack used; 　　（2） Choke manifold should be installed at the place where operator approach it conveniently, pressure testshould be executed as installation, while the sealing testpressure should be equal to the rated working pressure; 　　（3） Pipeline should be so smooth and straight aspossible, the corner of the pipeline should be made of**0°shaped forged steel bent pipe, which should haveadequately large bore; 　　（4） The working pressure gauge should be installed; 　　（5） In winter, the choke manifold be able to workunder a low temp condition.