Shaffer has been a recognized technology leader in pressure control equipment and blowout preventer (BOP) systems since 1928. Shaffer’s history in BOP technology began with a cellar gate mechanical BOP and moved into hydraulic operation in the 1950s, continually improving and providing cutting-edge patented technology over time.

Our trusted product lines consist of our Shaffer spherical BOP, ram BOPs such as the 6012 and our LXT line, 6000 shear ram BOP and low-force shear (LFS) rams, the SAR system, Mission™ drilling chokes and manifolds, and our Koomey BOP control units.

Dec 28, 2017 · Shaffer Annular BOP Features And Manuals. Shaffer Spherical™ blowout preventers are compact, annular type BOPs that seal reliably on almost any shape or size — oil and gas Kellys, D/Ps, drill pipe tool joints, drill collars, casing, or wireline. Sphericals also provide positive pressure control for stripping drill pipes into and out of the ...

The Shaffer® hydraulic operated Model LXT™ ram blowout preventer (LXT BOP) with manual locking cylinders provides a rugged, reliable preventer that is easily serviced in the field (see Figure 2-1). Patented “Boltless Door” design for fast and simple ram changes. Radial door seals between door and body. Standard internal H2S trim.

Sep 27, 2021 · We'll cover annular blowout preventer BOP features, stripping, closing, calcs w/ drawings for Hydril, Shaffer & Cameron in drilling rig

Our GBOP Annular Blowout Preventer is a revamped version of the field proven API 16A Shaffer Spherical BOP, and has been tested rigorously to prove its reliability as an annular BOP. The GBOP is ideal for use in most drilling applications.

Nov 8, 2021 · The Shaffer Spherical Blowout Preventer (BOP) has five major parts-upper housing, lower housing, sealing element, adapter ring, and piston (see Figure 2-1 and Figure 2-2). This manual provides the installation, operation, and maintenance procedures for the bolted-cover Spherical BOP. Shaffer bolted-cover models are the smaller Sphericals which

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Shaffer® Spherical blowout preventers are compact, annular type BOPs that seal reliably on almost any shape or size kelly, drill pipe, tool joint, drill collar, casing or wireline. Sphericals also provide positive pressure control for stripping drill pipe into and out of the hole.

The Shaffer® Manual Lock Model SL Ram Blowout Preventer (SL BOP) provides a rugged, reliable preventer that is easily serviced in the field. Special features include: Flat doors to simplify ram changes; Door seals with special backing to prevent extrusion and …