PRESSURE CONTROL DURING OIL WELL DRILLING

PÅL SKALLE PRESSURE CONTROL DURING OIL WELL DRILLING DOWNLOAD FREE TEXTBOOKS AT BOOKBOON.COM NO REGISTRATION NEEDED Pål Skalle Pressure Control During Oil Well Drilling Download free ebooks at bookboon.com 2 Pressure Control During Oil Well Drilling © 2009 Pål Skalle & Ventus Publishing ApS ISBN 978-87-7681-526-4 Disclaimer: The texts of the advertisements are the sole responsibility of Ventus Publishing, no endorsement of them by the author is either stated or implied. Download free ebooks at bookboon.com 3 Pressure Control During Oil Well Drilling Contents Contents 1 Introduction 7 1.1 The drilling process 7 1.2 Geological sediments 8 1.3 About Pressure Control in sedimentary rocks 10 1.4 Principle of barriers and safety aspects 13 1.5 Scope of this book 13 2. Pressure in the sediments 15 2.1 Sedimentary pressure prediction models 15 2.1.1 Overburden pressure and associated porosity 16 2.1.2 Normal pore pressure 18 2.1.3 Abnormal pore pressure 19 2.1.4 Fracture Pressure 20 2.2 Quantifying formation pressure 23 2.2.1 Overburden pressure 23 2.2.2 Abnormal pore pressure 24 2.2.3 Fracture pressure 33 3. Well Control Equipment 35 3.1 BOP stack and associated equipment 36 3.1.1 Shutting off the annulus 36 3.1.2 Shutting off the drill string 39 3.2 Remote control of the BOP 40 3.3 Volumetric unstable well (kicking well) 41 3.4 Closing procedure 43 what‘s missing in this equation? You could be one of our future talents maeRsK inteRnationaL teChnoLogY & sCienCe PRogRamme Are you about to graduate as an engineer or geoscientist? Or have you already graduated? If so, there may be an exciting future for you with A.P. Moller - Maersk. www.maersk.com/mitas Download free ebooks at bookboon.com 4 Pressure Control During Oil Well Drilling Contents 4. Standard killing methods 44 4.1. Surface and bottom pressure of a shut in well 46 4.1.1 Stabilized pressure just after shut in 46 4.1.2 Gas percolation in a closed well 46 4.1.3 MAASP 47 4.1.4 Estimating kill mud weight and safety factors 48 4.1.5 Composition of infl uxing pore fl uid 49 4.2. Hydraulic friction during killing 50 4.3. Killing by means of Driller’s Method 51 4.3.1 Six phases of killing 51 4.3.2 Critical pressures during killing 54 4.4 The Engineer’s Method and kill sheet 55 4.5 Killing when unable to circulate from bottom 57 5. Deviatory behavior of gas 60 5.1 Transport of gas 60 5.1.1 Gas bubbles 60 5.1.2 Gas bubble velocity 61 5.1.3 Well bore pressure during stationary gas fl ow 62 5.1.4 Surface pressure during killing 66 5.2 Gas solubility 69 5.2.1 Solubility in general 69 5.2.2 Solubility of gas in liquids 70 5.2.3 Operational problems related to dissolved gas 72 6. Narrow pressure window 76 6.1 Lowered mud window in deep wells and in deep water 76 Download free ebooks at bookboon.com 5 ... - tailieumienphi.vn