Question 3502Deck General70% to pass
The full period of motion of the DEEP DRILLER while tripping is 8 seconds and the maximum pitch angle as seen on the inclinometers is 4 degrees. From the standpoint of critical motion, the motion is _______________.
AI Explanation
The correct answer is C) satisfactory, continue tripping.
The key factors here are the full period of motion (8 seconds) and the maximum pitch angle (4 degrees). Based on industry standards and regulations, a full period of motion between 8-12 seconds and a maximum pitch angle below 5 degrees are considered satisfactory for tripping operations. Since the motion parameters provided fall within these acceptable limits, the rig's motion is satisfactory, and the tripping operation can continue as normal.
The other options are incorrect because they suggest taking actions that are not necessary given the satisfactory motion conditions. There is no need to place the unit in standby, set back the pipe, or deballast to survival draft, as the motion is within acceptable limits for continued tripping.
Related Questions
#3500 Yawing can be described as _______________.#3501 In observing rig motion while under tow, the period of roll is the time difference between _______________.#3503 The DEEP DRILLER is under tow at a 20 foot draft. The rig motions are close to exceeding the limits for critical pitch and roll. The rig is also experiencing occasional pounding on the horizontal braces. In this situation you should _______________.#3504 The DEEP DRILLER is being towed at a 20 foot draft. Vessel motions are within acceptable limits, but the waves begin to hit the horizontal braces. You should _______________.#3505 While being towed at a 19.5 foot draft, the DEEP DRILLER experiences single amplitude pitching of 7.5 degrees with an 8 second period. You should _______________.