Contents
Drilling Well Control Guide
SECTION 5: Planning and Operations 5-1
5.1 Well Planning 5-1
5.2 Crew Responsibilities 5-2
5.3 Well Control Related Drills 5-5
5.4 Slow Circulating Pressure (SCRs) 5-11
5.5 Use of the Mud System 5-12
5.6 Drilling Guidelines and Procedures 5-16
5-7 Implementing the Well Plan 5-26
SECTION 6: Well Control Methods and Procedures 6-1
6.1 Introduction 6-1
6.2 Driller’s Method 6-2
6.3 Wait & Weight Method (Engineer’s Method) 6-21
6.4 Procedures for Deviated Wells 6-37
6.5 Volumetric Method 6-39
6.6 Lubricate & Bleed 6-52
6.7 Bullheading 6-53
6.8 Pipe Off Bottom – Stripping to Bottom 6-56
6.9 Problems and Complications while Killing 6-71
SECTION 7: Well Control Equipment 7-1
7.1 Ram Blowout Preventers 7-1
7.2 Annular Preventers 7-31
7.3 Diverters 7-49
7.4 BOP Stack Arrangements Surface Installation 7-67
7.5 Choke Manifolds 7-80
7.6 Auxiliary BOP Equipment 7-87
7.7 Test and Inspection 7-100
7.8 Gaskets and Seals 7-119
7.9 Closing Units – Surface Installations 7-128
SECTION 8: Subsea Well Control 8-1
8.1 Introduction 8-1
8.2 Reduced Fracture Gradients – Formation Strength 8-1
8.3 Shut-In Procedures 8-5
8.4 Subsea Choke and Kill Lines 8-8
8.5 Disconnecting from the Well 8-16
8.6 Subsea BOP Equipment 8-19
8.7 High Pressure Lines and Manifolds 8-25
8.8 Diverter System 8-30
8.9 Lower Marine Riser Package (LMRP) 8-32
8.10 Subsea BOP Control Systems 8-37
8.11 Trouble Shooting Subsea Control Systems 8-65
8.12 Other Control Systems 8-69
October 2005 iii
