.... An advanced bit design balanced drilling with low aggressiveness through sand without compromising the performance through the interbedded limestone stringers and claystone. The conical-shaped cutter placed behind the main PDC conventional cutters successfully controlled the depth of cut through the sandy...

..., as occurred in previous wells due to motor failures. The motor drilled through a very thick cemented sandstone stringer with no stall incidents. This motor set new records for drilling the 5 ¾-in. section with a total run length 60% longer than the previous longest run and a total pumping time 67% greater...

... & Gas drilling operation drilling parameter Drilling Challenge Directional Drilling liner cement plug kickoff inclination operational execution BHA torque well profile society of petroleum engineers tortuosity point-the-bit rss stringer ERD well Statfjord Field Field Introduction...

.... real time system drilling operation Upstream Oil & Gas stringer liner rat hole length inclination reamer blade BHA activation operational risk Oseberg South field Reamer case study reamer technology rat hole IUR operational mode vibration Introduction The use of borehole...

... on the bottom hole assemblies, and the impact of refinements to drilling procedures. Upstream Oil & Gas side force drilling operation curvature downhole measurement implementation information real time system cross plot stringer assembly Reamer hole section torque performance step change...

... are corrected up and some down. The errors can be attributed to a variety of drilling conditions common in the Troll field, such as drilling in hold mode with rotary steerable systems (RSS), continuous geosteering, and drilling hard stringers, all of which can cause inclination changes that may be missed...