What is a "ANNULAR BOP"?

Jining Donghong Machinery Co., Ltd

China one stop shop trading company in equip & parts,PPE,Sports&Marine,Fishing Tackle

www.dhparts.com

Email: spareparts1960@foxmail.com

Skype: spareparts1960

Mobile/WhatsApp: 0086-189 5407 9939

dhparts mailnly supply spare parts and equipment of truck-mounted drilling rig,trailer-mounted drilling rig, work over rig ,electrical drilling rig etc. Keep long business cooperation relationship with API Manufacturers BOMCO,LSNOW,SICHUANG HONGHUA,SJ PETRO,RG PETRO, BPM(Beijing Petroleum Machinery Factory), GGPMF, RONGSHENG,SHENKAI,BEIJING PSK, RENQIU BOKE,HYSUN MARINE etc

Also specilize in the lines of  Personal Safety Protective Products(PPE) include safety padlock,safety gloves,safety shoes,safety glasses,safety chemical suits,safety mask with fileters,mechanical glvoes,oil and gas gloves,petro gloves,safety helmelts etc

Sports & Marine Products include inflatable boats, RIB Boats, stand-up paddle boards, outboards motors etc. 

Fishing Tackle include fishing floats,fishing rod, fishing reels,fishing hoos, fishing lures,fishing tools etc.

Annular/Spherical Blowout Preventer/Annular Blowout Preventer

A large valve used to control wellbore fluids. In this type of valve, the sealing element resembles a large rubber doughnut that is mechanically squeezed inward to seal on either pipe (drill collar, drillpipe, casing, or tubing) or the openhole. The ability to seal on a variety of pipe sizes is one advantage the annular blowout preventer has over the ram blowout preventer. Most blowout preventer (BOP) stacks contain at least one annular BOP at the top of the BOP stack, and one or more ram-type preventers below. While not considered as reliable in sealing over the openhole as around tubulars, the elastomeric sealing doughnut is required by API specifications to seal adequately over the openhole as part of its certification process.

Annular/Spherical Blowout Preventer/Annular Blowout Preventer