casing
Drill COLLARS
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Drilling circulation презентация
Содержание
- 1. Drilling circulation
- 2. Source: Applied Drilling Engineering. Bourgoyne & Young Circulating system. Drilling mud travel
- 3. Advantages of positive displacement/duplex or triplex pumps:
- 4. Circulating system Source: Applied Drilling Engineering. Bourgoyne & Young
- 5. Problem 3. The liner diameter of
- 6. Problem 4 A drill string
Source: Applied Drilling Engineering. Bourgoyne & Young Circulating system. Drilling mud travel
Слайд 1Circulating system. Drilling mud travel
Steel tank
Mud pump
Drill RIG
Drill bit
Drill pipes
Annulus/empty space
Annulus/empty
space
Слайд 2Source: Applied Drilling Engineering. Bourgoyne & Young
Circulating system. Drilling mud travel
Слайд 3Advantages of positive displacement/duplex or triplex pumps: 1) Injection of large solid
particles in the mud;
2) maintenance
3) ability to operate at any pressure and flow rate.
Source: Applied Drilling Engineering. Bourgoyne & Young
Слайд 5Problem 3. The liner diameter of the duplex pump is 16 cm
and the piston rod diameter is 6.5 cm. The stroke length is 42 cm and the volumetric efficiency is 80%. Find the pump factor m3/stroke.
Слайд 6 Problem 4 A drill string has a pipe section with a length
of 1000 meters, outer diameter of 12.5 cm and wall thickness of 8 mm. The pipe section is connected to the drill collars from the bottom with an outer diameter of 15 cm, inner diameter of 9 cm and length of 200 meters. The borehole diameter is 20 cm. Determine the number of pump cycles to inject the drilling mud from surface to the dill bits and from drill bits back to the surface by considering that the borehole remains stable. Use the pump factor which is found in problem 3.
