Annular bop

(A related valve, called an inside blowout preventer, internal blowout preventer, or IBOP, is positioned within, and restricts flow up, the drillpipe. TFI annular BOP is offered in a variety of sizes and pressure ratings. The annular design will seal on an open hole up to diameter. Annular BOPs (ABOP s) are a critical component of onshore and offshore exploration. The hydraulic operating piston of the annular BOP is designed to efficiently actuate the piston, thereby closing the packer and minimizing the effect that well pressure has on the pack-off.

BOP stacks frequently utilize both types, typically with at least one annular BOP stacked above several ram BOPs.

The unique design of our DL BOP does not require wellbore assist. The annular can close on drillpipe or large tubulars without reducing operating pressure, which minimizes risk of indention or damage to casing. The sealing element in this kind of valve resembles the large rubber donut which mechanically squeezes inward and seals the drill string, open hole, casing, pipe or any non-cylindrical object like the Kelly. Packing element is spherical or tapered type with massive storage volume, low operation pressure and excellent sealing function.

WOODCO USA provides this information for reference only. They provide a pressure barrier by sealing around tubular goods, like drill pipes, during drilling operations to ensure optimal safety whenever a problem arises.
Two categories of blowout preventer are most prevalent: ram and annular. AP Industries The design and manufacture of Annular BOP is according to API Spec 16A standard. Annular Blowout Preventer is a large valve that is used to control the well fluids.

Product Specifications Features Intuitive Design: WOMs Annular BOP has a conical bowl designed piston with a length-to-diameter ratio approaching which eliminates tendencies to cock and bend during operations with off-center pipe or unevenly distributed accumulations of san cuttings, or other elements. 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. Cameron DL high-pressure annular BOPs allow reliable performance in a shorter height and lighter weight than comparable annular BOPs.

Annular BOP - Schlumberger Oilfield Glossary The ability to seal on a variety of pipe sizes is one advantage the annular blowout preventer has over the ram blowout preventer. Note: These weight tables use published numbers taken from manufacturers catalogs. All TFI annular BOPs are designed and manufactured to conform to API 16A specification, 3rd edition. All TFI annular BOPs are rated for H2S service.

Pipe - This piece is designed from reliable plastic.

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