EXPANDABLE BALL SEAT

• Main Authors: LUNDE, GEIR, ANTONSEN, ROGER, BRAEKKE, KRISTOFFER
• Format: Patent
• Language: English; French
• Published: 20.02.2018
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

Apparatus for a drop ball activated device, where a ball seat (4) is concentrically and axially slidably disposed within an outer sleeve (1) having a first internal cylindrical surface, wherein the ball seat (4) comprises at least one radially extending lug (6), which in a first position extends rad...