Well control equipment

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The bolt length is established using: L CSB =A+n Where: L CSB – calculated stud length (effective thread length, excluding end points), m L SSB - specified stud bolt length (which is L CSB rounded off to the nearest commercially available length), m
A=2⋅(T+0,5⋅t+d)+S A - stud bolt length exclusive of negative length tolerance, m T – flange thickness, m t – plus tolerance for flange thickness, m d – nut thickness (equals nominal bolt diameter), m S – flange face standoff (for BX assemblies it is zero), m n – negative tolerance on bolt length : 1,5875 mm (1/16") for lengths up to 304,8 mm (12"); 3,175 mm (1/8") for lengths over 304,8 mm (12") to 457,2 mm (18"); 6,35 mm (1/4") for lengths over 457,2 mm (18"), m
Page 1 and 2: Well control equipment Matanović D
Page 3 and 4: Blowout Preventers These requiremen
Page 5 and 6: Blowout Preventers The recommended
Page 7 and 8: Blowout Preventers
Page 9 and 10: BOPs Rating Any assembly of blowout
Page 11 and 12: API Class 2 M 3 M 5 M 10 M 15 M BOP
Page 13 and 14: Cutaway view of the blowout prevent
Page 15 and 16: Annular-type preventer (Shaffer)
Page 17 and 18: Packing element Packing element (Hy
Page 19 and 20: They close the annular space outsid
Page 21 and 22: Ram-type preventers Blank units whi
Page 23 and 24: Closing element of the ram-type pre
Page 25 and 26: Blind rams can also be used as dril
Page 27 and 28: Rotationil preventers Rotational pr
Page 29 and 30: Diverters as the name says are used
Page 31 and 32: Diverters are mainly used in off-sh
Page 33 and 34: Kelly valves (kelly cocks) An upper
Page 35 and 36: In Shaffer type kelly valve, closin
Page 37 and 38: Drill string float valves A float v
Page 39 and 40: Flapper-type float valve The flappe
Page 41 and 42: Well head • The wellhead includes
Page 43 and 44: − If more than one casing string
Page 45: Three types of end and outlet flang
Page 49 and 50: Note! The pressure passage hole in
Page 51 and 52: Testing and Maintenance of surface
Page 53 and 54: When testing BOP stack the hole is
Page 55 and 56: Pressure tests The initial high pre
Page 57 and 58: Pressure tests The lower kelly valv
Page 59 and 60: Pressure tests Subsequent high pres
Page 61 and 62: For annular preventers closing pres
Page 63 and 64: Pressure testing of an ram-type pre
Page 65 and 66: Schematic of conventional hydraulic
Page 67 and 68: Shematic of conventional hydraulic
Page 69 and 70: Recommended installation of Blowout
Page 71 and 72: Safety distance for accumulator uni
Page 73 and 74: Hydro-Nitrogen Accumulators Three d
Page 75 and 76: Hydro-Nitrogen Accumulators (Krišt
Page 77 and 78: Choke and kill manifolds
Page 79 and 80: Drilling choke system Manually actu
Page 81 and 82: Gate valves • The valves used on

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