L3

Table of Contents TOC MERGEFORMAT 1. Introduction PAGEREF _Toc352268608 h 5 1.1 Purpose PAGEREF _Toc352268609 h 5 1.2 Applications PAGEREF _Toc352268610 h 5 1.3 Laws, Regulations and Relevant Requirements PAGEREF _Toc352268611 h 5 1.4 Definitions and Abbreviations PAGEREF _Toc352268612 h 5 1.5 Feedback PAGEREF _Toc352268613 h 6 2. Reasons for kick PAGEREF _Toc352268614 h 6 2.1 PrimaryWell Control PAGEREF _Toc352268615 h 6 2.1.1 Failure to Keep The Hole Properly Filled while Tripping PAGEREF _Toc352268616 h 6 2.1.2 Swabbing PAGEREF _Toc352268617 h 6 2.1.3 Lost Circulation PAGEREF _Toc352268618 h 7 2.1.4 Insufficient Fluid Density PAGEREF _Toc352268619 h 8 2.1.5 Loss of Riser Drilling Fluid Column PAGEREF _Toc352268620 h 8 2.2 Indication of Kick / Detecting a Kick.PAGEREF _Toc352268621 h 9 2.2.1 Increase in Flow Rate PAGEREF _Toc352268622 h 9 2.2.2 Increase in Pit Volume PAGEREF _Toc352268623 h 9 2.2.3 Drilling Breaks PAGEREF _Toc352268624 h 9 2.2.4 Variation in Pump Pressure PAGEREF _Toc352268625 h 9 2.2.5 Well Flowing During Connection PAGEREF _Toc352268626 h 10 2.2.6 Change of Drilling Fluid Properties PAGEREF _Toc352268627 h 10 2.3 Kick Detectionwhile Tripping PAGEREF _Toc352268628 h 10 2.3.1 Improper Hole Fill Up PAGEREF _Toc352268629 h 10 2.3.2 Hole Not Taking Correct Volume PAGEREF _Toc352268630 h 10 2.3.3 Flow Checks PAGEREF _Toc352268631 h 10 3. Preventive well control PAGEREF _Toc352268632 h 11 3.1 Safety Margins to Prevent Kick During Drilling Operations PAGEREF _Toc352268633 h 11 3.1.1 Riser Margin PAGEREF _Toc352268634 h 113.1.2 Trip Margin PAGEREF _Toc352268635 h 11 3.1.3 Kick Margin PAGEREF _Toc352268636 h 12 3.2 Pre Recorded Information PAGEREF _Toc352268637 h 12 3.2.1 LOT PAGEREF _Toc352268638 h 12 3.2.2 FIT PAGEREF _Toc352268639 h 13 3.2.3 ECD PAGEREF _Toc352268640 h 13 3.2.4 Friction Loss In Circulating System PAGEREF _Toc352268641 h 13 3.2.5 Drill String Friction PAGEREF _Toc352268642 h 13 3.2.6Annulus Friction PAGEREF _Toc352268643 h 13 3.2.7 Choke Line Friction PAGEREF _Toc352268644 h 14 3.2.8 Slow Circulation Rates PAGEREF _Toc352268645 h 14 3.3 Indication Of Pore Pressure Increasing PAGEREF _Toc352268646 h 14 3.3.1 Pore Pressure Prediction While Drilling PAGEREF _Toc352268647 h 14 3.3.2 Pore Pressure Prediction Techniques PAGEREF _Toc352268648 h 15 3.3.3 D-Exponent PAGEREF_Toc352268649 h 15 3.3.4 Mud Gas Level PAGEREF _Toc352268650 h 15 3.3.5 Drilling Trends PAGEREF _Toc352268651 h 16 4. Standard Killing Methods PAGEREF _Toc352268652 h 16 4.1 Drillers Method. PAGEREF _Toc352268653 h 17 4.1.1 Procedure PAGEREF _Toc352268654 h 17 4.1.2 Pressure Trend Curves, Drillers Method PAGEREF _Toc352268655 h 18 4.2 The Wait And Weight Method (Alternative Method) PAGEREF_Toc352268656 h 19 4.2.1 Wait Weight Procedure PAGEREF _Toc352268657 h 19 4.2.2 Pressure Trend Curves, Wait And Weight Method PAGEREF _Toc352268658 h 21 4.3 The Volumetric Method PAGEREF _Toc352268659 h 21 4.4 Bull Heading PAGEREF _Toc352268660 h 25 4.4.1 Bull Heading Discussion PAGEREF _Toc352268661 h 26 4.4.2 Bull Heading Procedure and Precaution PAGEREF _Toc352268662 h 26 4.5 Dynamic KillingPAGEREF _Toc352268663 h 30 4.6 Stripping In PAGEREF _Toc352268664 h 30 4.6.1 Stripping Procedure for Floaters PAGEREF _Toc352268665 h 31 4.6.2 Stripping Work Sheet PAGEREF _Toc352268666 h 31 4.7 Circulation through choke manifold PAGEREF _Toc352268667 h 33 5. Drills and Training PAGEREF _Toc352268668 h 33 5.1 General PAGEREF _Toc352268669 h 34 5.2 Purpose Of Well Control Drills PAGEREF_Toc352268670 h 35 5.3 Kick Control Sheet PAGEREF _Toc352268671 h 36 5.4 Kick Drill Prior To Drilling Out Of Casing PAGEREF _Toc352268672 h 39 5.5 Kick While Tripping PAGEREF _Toc352268673 h 39 5.6 Kick While Drilling (On Bottom) PAGEREF _Toc352268674 h 40 5.7 Kick While Drilling (Off Bottom) PAGEREF _Toc352268675 h 40 5.8 Choke Drill PAGEREF _Toc352268676 h 40 5.9 Diverter Drill PAGEREF...