BOP Equipment /15 0 votes, 0 avg 1 Created on March 09, 2023 BOP Equipment BOPE-(number) 1 / 15 To what pressure must the drill string safety valves be tested? 50% of the ram test pressure 70% of the casing burst pressure To the same pressure as the BOP To 100 psi over the original SIDPP 2 / 15 Which of the following dimensions determine the pressure at which gas can ‘blow- through’ to the shakers on a mud-gas separator? Height and inside diameter of the body Height of liquid mud seal Length of choke line Size and total number of shakers 3 / 15 During drilling operations you notice the gauges on the BOP accumulator system show the following readings: Accumulator Pressure – 2600 psi and dropping Manifold Pressure – Constant at 1500 psi Annular Pressure – Constant at 1000 psi What could be happening? There is a leak in the annular preventer hydraulic system There annular regulator is malfunctioning There is possibly a leak in the system and the pressure switch controlling the pump has not operated The hydraulic closing line to the BOP is most likely plugged 4 / 15 For a surface stack (3000 psi system), what are the BOP components controlled by the manifold pressure? Annular Preventer Choke Manifold Rams and HCRs Mud-Gas Separator 5 / 15 What is the main function of the choke in the choke manifold? To bleed a large volume of formation fluid To create back-pressure during kill operations To pressure test surface equipment To restrict the amount of drilling fluid circulated through the mud gas separator 6 / 15 What is the function of the Blind Rams? To shut-in the open hole To shear the drill string To seal the well around the tooljoint The seal the well around the casing 7 / 15 For a 3000-psi system on a surface BOP stack, what are the normal operating pressrures? Manifold = 1000 psi / Accumulator = 2500 psi / Annular = 2000 psi Manifold = 1000 psi / Accumulator = 3000 psi / Annular = 1500 psi Manifold = 3000 psi / Accumulator = 1500 psi / Annular = 1500 psi Manifold = 1500 psi / Accumulator = 3000 psi / Annular = 600 – 1500 psi 8 / 15 When testing a surface BOP stack with a test plug, why must the side outlet valves below the plug be kept in the open position? To prevent a pressure lock To allow a reverse circulation To check for a leaking plug The side outlet valves should be kept closed 9 / 15 What is the purpose of the high pressure by-pass valve on the surface BOP control unit? To enable the full accumulator pressure to be placed on the ram manifold To enble the full accumulator pressure to be placed on the annular To increase the nitrogen precharge pressure To ensure the BOP will close 10 / 15 What is true about ring gaskets? The same metal is used for gaskets and grooves Type BX gaskets provide a pressure-energized seal Sealing element of ring gaskets are made of natural rubber Ring gaskets should always be reused 11 / 15 In a 3000-psi accumulator system with a minimum operating pressure of 1200 psi, what should be the nitrogen precharge in each accumulator bottle? 200 psi 1000 psi 1200 psi 3000 psi 12 / 15 What is the limitation on the mud-gas separator? When the vent line back pressure exceeds the hydrostatic pressure of the liquid leg When the hydrostatic pressure in the mud seal exceeds the gas back pressure in the vent line The amount of backpressure created into the well The density of the fluid being pumped into the well while drilling 13 / 15 Use the scenario below to answer the following question: An increase in return flow is detected followed by a pit gain. The Driller attemps to close the pipe rams using the remote BOP panel. The ram open light is out and the close light is now on. There was no changes in the accumulator pressure. What could have happened? The manifold pressure failed to supply the accumulator bottle The annular pressure failed to supply the accumulator bottle The ram is fully closed once the close light is now on Possible blockage in the line between the accumulator unit and BOP stack 14 / 15 What is the purpose of the High Pressure By-Pass button on the Driller’s remote BOP control panel on a surface BOP installation? To increase the hydraulic annular pressure to the existing accumulator pressure To increase the hydraulic manifold pressure to the existing accumulator pressure The increase the precharge of nytrogen The reduce the time to close the BOP 15 / 15 What is the function of a blind rams? Seal around the drill pipe Seal around tool joints As a back up for the annular preventer To seal off the open hole Your score is LinkedIn Facebook Twitter VKontakte 0% Restart quiz Please rate this quiz Send feedback
