Pressure Control During Oil Well Drilling

Cover......Page 1
Pressure Control During Oil Well Drilling......Page 2
©......Page 3
Contents......Page 4
1.1 The drilling process......Page 7
1.2 Geological sediments......Page 8
1.3 About Pressure Control in sedimentary rocks......Page 9
1.4 Principle of barriers and safety aspects......Page 11
1.5 Scope of this book......Page 12
2.1 Sedimentary pressure prediction models......Page 13
2.2 Quantifying formation pressure......Page 21
3 Well Control Equipment......Page 34
3.1 BOP stack and associated equipment......Page 35
3.2 Remote control of the BOP......Page 40
3.3 Volumetric unstable well (kicking well)......Page 41
3.4 Closing procedure during drilling operations......Page 42
3.5 Well barriers during drilling operations......Page 43
4 Standard killing methods......Page 45
4.1 Surface and bottom pressure of a shut in well......Page 47
4.2 Hydraulic friction during killing......Page 52
4.3 Killing by means of Driller’s Method......Page 53
4.4 The Engineer’s Method and kill sheet......Page 57
4.5 Killing when unable to circulate from bottom......Page 59
5.1 Modification due to narrow pressure window......Page 61
5.2 Killing with irregular drill string geometry......Page 66
6.1 Transport of gas......Page 68
6.2 Wellbore pressure during two phase flow.......Page 70
6.3 Gas solubility......Page 80
7.1 Low sea temperature......Page 87
7.2 Other deep water problems......Page 90
7.3 Shallow sands below deep sea water......Page 92
8.1 The cement slurry......Page 98
8.2 Cementing operations......Page 101
8.3 Gas migration......Page 105
References......Page 113
Nomenclature......Page 114
Abbreviations......Page 116
Unit conversion factors......Page 118