BOP stacks frequently utilize both types, typically with at least one annular BOP stacked above several ram BOPs. Blowout preventers are used on land wells, offshore rigs, and subsea wells. Land and subsea BOPs are secured to the top of the wellbore, known as the wellhead. BOPs on offshore rigs are mounted below the rig deck.

Dec 23, 2017 · Blowout Preventers (BOP) Stack is one of the rig components used to seal the wellbore and thereby contain a kick ( check drilling kick). Two main types of BOP preventers are used in the industry (both types are discussed below).

When drilling in deep waters from a floating vessel, operators deploy a BOP stack, which is connected to the subsea wellhead. Subsea BOPs include a lower marine riser package that includes the annular BOPs and the subsea pod (not shown).

Equip your offshore operation with complete riser systems—from the drillfloor to the BOP stack. Direct wellbore fluids away from the immediate drilling area on offshore rigs. Drilling control systems for land, platform, and subsea applications. Maximize the working pressure of subsea mounted accumulators.

20K BOP stack is designed to optimize uptime and reduce unplanned stack pulls, reaffirming the company’s commitment to technical authority, engineering excellence, and safety.

Section D – Recommended Pressure Test Practices, Floating Rigs with Subsea BOP stacks. Section E – Job Safety Analysis for BOP Maintenance and Inspection. Each component in a Blow Out Preventer (BOP) assembly is operated hydraulically by …

Jul 1, 2020 · Subsea blowout preventer (BOP) is a safety-related instrumented system that is used in underwater oil drilling to prevent the well to blowout.

Aug 2, 2024 · A subsea BOP stack comprises multiple valves and rams that can seal, control, and monitor oil and gas wells. When a pressure anomaly is detected, the BOP can close off the wellbore, either sealing it completely or allowing controlled pressure release.

Jul 8, 2019 · Our 20K BOP stack is designed to optimize uptime and reduce unplanned stack pulls, reaffirming the company’s commitment to technical authority, engineering excellence and safety. “This is a historic moment for the offshore oil and gas industry,” commented Joe Rovig, President, NOV Rig Technologies.

Mar 24, 2010 · A double ram-type BOP that was found to be comparable in size and weight an existing BOP became the design foundation for the 20,000-psi subsea BOP stack. END CONNECTIONS. The design basis for the end connection selected for the BOP and drill-through column is an API-style bolted flange connection.