Castings with blind feeders, F2 is correctly vented but has mixed results on sections S3 and S4. Feeder F3 is not vented and therefore does not feed at all. The unfavourable pressure gradient draw...Full description
concreteFull description
Drilling Problems and SolutionsFull description
Riser document
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Drilling Problems and Solutions
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Petronas Technical Standard PTS 31.40.10.10 Riser Design
• Cool, lubricate and support the bit and drilling assembly
Functions of Drilling Mud
• Cool, lubricate and support the bit and drilling assembly • Effectively clean the bottom of the hole
Functions of Drilling Mud
• Cool, lubricate and support the bit and drilling assembly • Effectively clean the bottom of the hole • Remove cuttings from well
Functions of Drilling Mud
• Cool, lubricate and support the bit and drilling assembly • Effectively clean the bottom of the hole • Remove cuttings from well • Suspend and release cuttings
Functions of Drilling Mud
• Cool, lubricate and support the bit and drilling assembly • Effectively clean the bottom of the hole • Remove cuttings from well • Suspend and release cuttings • Seal permeable formations
Functions of Drilling Mud
• Cool, lubricate and support the bit and drilling assembly • Effectively clean the bottom of the hole • Remove cuttings from well • Suspend and release cuttings • Seal permeable formations • Maintain wellbore stability
Functions of Drilling Mud
• Cool, lubricate and support the bit and drilling assembly • Effectively clean the bottom of the hole • Remove cuttings from well • Suspend and release cuttings • Seal permeable formations • Maintain wellbore stability • Control formation pressures
Drilling Fluid Additives
Drilling Fluid Additives
Drilling Fluid Additives
• Clay
Drilling Fluid Additives
• Clay • Weighting Materials
Drilling Fluid Additives
• Clay • Weighting Materials • pH Control
Drilling Fluid Additives
• • • •
Clay Weighting Materials pH Control Viscosifiers / De-Flocculants
Drilling Fluid Additives
• • • • •
Clay Weighting Materials pH Control Viscosifiers / De-Flocculants Corrosion Inhibitors