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• Kaleem Ullah

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Intermediate Inspection Criteria, Well Control Equipment Equipment Group: Mud Pump & High Pressure Lines Drilling Contractor : Rig Unit Number – Contractor : Rig Unit Number – PDO : Present Well Location : Date :

Reset-able Mud Pump Relief Valves ( 3 monthly) Make/Brand : Type : Serial Number : Year of Manufacturing When :

Conducted by :

Last Major Maintenance Last Intermediate Maintenance Note : 1. No heating, welding, or cutting is allowed on any part of this equipment. 2. All repair work to be executed and certified by 3rd party. 3. 3rd party is required for NDT, US and pressure testing. 4. PTW is required for pressure tests in the field. Visual Correct / Comments Relief Valve MP 1-2-3 Inspection Done? Serial Number : YES NO 1 Carry out visual inspection of valve 2 Remove the valve and clean 3 Remove bonnet assembly and take out its tip cover including piston and springs 4 Inspect pressure setting mechanism and seals. Replace as required 5 Assemble the valve 6 Replace 5/8"-bonnet and 1/2"- cover socket head screws. 7 Grease valve assembly 8 Function test the pressure setting mechanism 9 Carry out pressure test of the valve on its test stump by using manual pump to max WP. 10 Ensure that valve is set and operates at operational desired set pressure. 11 Install the valve on Mud pump. 12 Pressure test connection 13 Confirm blow down line unblocked and properly secure

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Mud Pump Shear Pin Relief Valves ( 3 monthly) Make/Brand : Type : Serial Number : Year of Manufacturing When :

Conducted by :

Last Major Maintenance Last Intermediate Maintenance Note : 1. No heating, welding, or cutting is allowed on any part of this equipment. 2. All repair work to be executed and certified by 3rd party. 3. 3rd party is required for NDT, US and pressure testing. 4. PTW is required for pressure tests in the field. Relief Valve-1 Visual Correct / Comments Serial Number : Inspect Done? ion YES NO 1 Bleed of pressure from pump pressure line and disconnect (Weco union) valve. 2 Carry out visual inspection of valve 3 Unscrew Safety cover and remove Shear pin(s). 4 Unseat Piston and unscrew Weco Sub from valve body. Remove Sub o-ring. Unscrew the Bonnet from valve body. 5 Pressure clean all disassembled parts including Weco union. 6 Check for wear and tear all parts and threads including Weco union. Replace all necessary seals and parts. 7 Check hammer union, seals and sealing areas 8

Visual and dimensional check of male wing half

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Visual and dimensional check of female union thread half Visual and dimensional check male hub

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Visual and dimensional check of segment

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Grease parts, reassembly valve with proper Shear pin(s) for testing to set WP. Carry out pressure test of the valve by manual pump (to shear pin) verify & record shear pin value Install the valve on Mud pump pressure line and reset with proper Shear pin(s). Replace Safety cover. Record Inspection and Test Report.

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Mud Pump fluid end ( 1-Yearly ) Make/Brand : Type : Serial Number : Year of Manufacturing When :

Conducted by :

Last Major Maintenance Last Intermediate Maintenance Note : 1. No heating, welding, or cutting is allowed on any part of this equipment. 2. PTW is required for pressure tests in the field. 3. 3rd party is required for NDT, US and pressure testing. Visual Correct / Comments MP 1-2-3 Inspection Done? YES NO 1 MPI inspect the thread connection of the top plug and sealing area if required change the seals. 2 Install valve and spring (check the spring tension, change if required), install plug, tight it properly. Remove all the tools. 3 Function test the fluid end and check for leakage.

Pump Discharge Manifold ( 1-Yearly ) Make/Brand: Type : Cast Iron/Steel Serial Number : Year of Manufacturing When : Last Major Maintenance Last Intermediate Maintenance Notes: Information from: manufacturer ASTM E165 ASTM E709 1 Ultrasonic wall thickness check at 3 points and compare with minimum requirement. 2 For cast iron discharge manifolds a visual bore inspection is required 3 For welded discharge manifolds MPI of all critical welds 4 Pressure test to max WP is done with the mud pump and mud lines 5 Confirm torque on manifold stud bolts / nuts after P-test.

Conducted by :

Visual Correct / Inspection Done ? YES NO

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Pulsation Dampener (Yearly) Make/Brand: Type: Serial Number: Year of Manufacturing When: Conducted by: Last Major Maintenance Last Intermediate Maintenance Note: 1. No heating, welding, or cutting is allowed on any part of this equipment. 2. All repair work to be executed and certified by 3rd party. 3. 3rd party is required for NDT, US and pressure testing. 4. PTW is required for pressure tests in the field. Visual Correct / Comments Notes: Information from: manufacturer Inspection Done? YES NO 1 Check integrity of Element (holds correct nitrogen pressure) and needle valve, using charging assy. gauges. 2 Check calibration of pressure gauge against gauge on charging assy. 3 Check Nitrogen pre-charge pressure.1/3 of max. Pump discharge pressure expected to use only if manufacturer recommends 5 Pressure test to max WP is done with mud pump and mud lines 6 Confirm torque on stud bolt post pressure test

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Stand Pipe Manifold / High Pressure Lines ( 1-Yearly ) Make/Brand: Type: Serial Number: Year of Manufacturing When: Conducted by: Last Major Maintenance Last Intermediate Maintenance Note : 1. No heating, welding, or cutting is allowed on any part of this equipment. 2. Welding repair work to be certified by 3rd party. 3. 3rd party is required for NDT, US and pressure testing. 4. PTW is required for pressure tests in the field. 5. Hammer unions to be inspected as per EP 2006-5393 Visual Done / Comments Inspection Correct? YES NO 1 Remove, degrease and pressure clean inside and out side of pipes and manifold. 2 Dismantle hammer type connection manifold 3 Pressure clean all hammer unions. 4 Carry out visual inspection for any wear, corrosion and wash out. 5 Visual and dimensional check of male wing half 6 Visual and dimensional check of female union thread half 7 Visual and dimensional check male hub 8 Visual and dimensional check of segment 9 Measure wall thickness on full length of pipes and manifold at interval of 1mtr. (US Test compare with original) The test points must cover the pipes 360º of circumference. (minimum of 1 measure point between 2 valves) 10 Measure wall thickness on inside and outside curves of Tees and elbows. 11 Check pressure gauges against calibrated test gauge. 9 Check to ensure that all valves are moving freely and stem packing is in good condition.(if not change with the OEM spares) and handles are secured 10 Valve No-1 Ser No: 11 Valve No-2 Ser No: 12 Valve No-3 Ser No: 13 Valve No-4 Ser No: 14 Valve No-5 Ser No: 15 Valve No-6 Ser No: 16 Valve No-7 Ser No: 17 Valve No-8 Ser No: 18 Valve No-9 Ser No: 19 Valve No-10 Ser No: 20 Assemble all pipes and manifold. Grease all valves. 21 Pressure test to working pressure, complete Well Control Equipment Intermediate Inspection: Mud Pump & HP lines Generated by: WCF Page 5 of 7

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assembly from Mud pump with manifold, up to goose neck Isolation valve between SP 1 & SP 2 to be tested both directions Individually pressure test each valve on manifold to working pressure.

HP Hoses ( 1-Yearly ) Make/Brand: Type: Serial Number: Year of Manufacturing When: Conducted by: Last Major Maintenance Last Intermediate Maintenance Note : 1. No heating, welding, or cutting is allowed on any part of this equipment. 2. PTW is required for pressure tests in the field. 3. Hoses to be inspected as per EP 2006-5393 Visual Done / Comments Inspection Correct? YES NO 1 Remove, degrease and pressure clean lines and hoses. 2 Check for any damage, deformity on lines and the hose body. 3 Visually check outside for wear, damage, corrosion and blisters etc. Check hammer union, seals and sealing areas 4 Visual and dimensional check of male wing half 5 Visual and dimensional check of female union thread half 6 Visual and dimensional check male hub 7 Visual and dimensional check of segment 8 Check flanges and ring grooves for wear and corrosion. 9 Inspect the lifting and safety clamps. 10 Install hoses in place and carry out pressure test to maximum Working pressure along with valves. 11 Record pressure test on chart recorder.

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All above Inspections & Tests conducted by : (Authorized Third Party Inspection Company) Agreed by : (Contractor Rig Manager) Verified by : (PDO Site Representative) Authorized by : (Contractor DS) Seen by : (PDO SWE)

Name :

Company :

Date :

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Signature :

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