Petroleum Engineering 406

1. Petroleum Engineering 406 Introduction

2. Introduction Introduction to course Class hours Grading Textbooks Schedule Introduction to Well Control

3. Introduction Description: (3-0). Credit 3. II Well control; underbalanced drilling; offshore drilling; horizontal, extended, reach, multi-lateral drilling; and fishing operations Prerequisite: PETE 411 Classes: 8:00 � 8:50 a.m. MWF Richardson: 313

4. Introduction Instructor: Jerome J. Schubert, PE Office: 501K Richardson Hours: 9:00 - 11:00 a.m. TR Phone: 979/862-1195 e-mail: schubert@spindletop.tamu.edu Notes: http://pumpjack.tamu.edu/~schubert

5. Grading QuizA: 20% Quiz B: 20% Final: 20% Hmwk: 20% Project: 20%

6. Textbooks Applied Drilling Engineering Bourgoyne, Chenevert, Millheim, Young Well Control Manual Schubert Handouts, Technical papers, etc.

7. Course Content Well Control Kicks Blowouts Terminology Basic Well Control Calculations Causes of Kicks Kick Detection Shut-In Procedures

8. Course Content Well Kill Procedures Equivalent Mud Weights Casing Seat Tests Kick Tolerances Gas Kicks Abnormal Pressure Casing Seat Selection

9. Course Content Well Control Equipment Unusual Well Control Operations Shallow Gas Subsea Well Control

10. Course Content Underbalanced Drilling, UBD Introduciton to UBD UBD techniques Benefits Equipment Selecting candidates UBD engineering

11. Course Content Offshore Drilling Platform Rigs Jackup rigs Floating Drilling

12. Course Content Dual Gradient Drilling Introduction to DGD U-tube concepts Pressure profiles DGD well control

13. Petroleum Engineering 406 Lesson 1 Well Control

14. Well Control Kick �an unscheduled entry of formation fluids into the wellbore, of sufficient Quantity to require shutting in the well. Blowout Loss of control of a kick

15. Blowout

16. Blowouts

17. Well Control Blowout Surface Underground Blowouts caused by equipment failure human error

18. Well Control Engineers in office can aid in well control by: Provide pressure profiles for all pending wells Provide offset information such as logs, bit records, mud reports, drilling records. Provide support and assistance personnel on location.

19. Well Control Terminology Hydrostatic pressure = .052 x MW x TVD

20. Hydrostatic Pressure Derive HSP equation Calculate the HSP for each of the following: 10,000� of 12.0 ppg mud 12,000� of 10.5 ppg mud 5,000� of 11.2 ppg mud on top of 6,000� of 16.5 ppg mud

21. Hydrostatic Pressure Derive HSP equation Area = A, sq.ft. Height = h, ft. Density = MW, ppg Weight of fluid = A*h (ft3)*62.4 lb/ ft3 *MW/8.33 =62.4/8.33*MW*A*h

22. Hydrostatic Pressure This weight is equally distributed over an area of A sq.ft or 144*A sq. in. Pressure = Weight (force)/area = 62.4*MW*A*h 8.33*144*A P=.052*MW*h where h=TVD

23. Terminology Pressure Gradient psi/ft = .052 x MW ppg equivalent Formation Pressure Normal pressure Abnormal pressure Subnormal pressure

24. Terminology Overburden pressure function of rock and fluid above zone of interest Fracture pressure

25. Terminology Pump pressure or system pressure loss

26. Terminology Slow Pump Pressure Taken: every tour by each driller pumps repaired or liners changed mud properties change every 500� of hole change in BHA bit nozzles changed

27. Terminology Surge pressure Swab pressure

28. Terminology Shut-in drillpipe pressure - SIDPP FP = HSPdp + SIDPP Shut-in casing pressure - SICP FP = HSPcsg mud + HSPinflux + SICP Bottom-hole pressure - BHP BHP = HSP + SIP + Friction + Surge - Swab

29. U-Tube Concept

30. Basic Calculations Dia, in - cap, bbl/ft

31. Basic Calculations Pump Output Duplex Pump Triplex Pump

32. Basic Calculations

33. Basic Calculations Kill Weight Mud KWM = SIDPP/(0.052 x TVD) + OWM KWM = FP/(0.052 x TVD)

34. Weight material to add to increase density