Kick-Off Point (KOP) and End of Buildup (EOB) Data Analysis in Trajectory Design

  • Novrianti Novrianti Department of Petroleum Engineering, Universitas Islam Riau, Jln. Kaharuddin Nasution No. 113, Pekanbaru, Riau
  • Rycha Melisa Department of Petroleum Engineering, Universitas Islam Riau, Jln. Kaharuddin Nasution No. 113, Pekanbaru, Riau
  • Rafhie Adrian Department of Petroleum Engineering, Universitas Islam Riau, Jln. Kaharuddin Nasution No. 113, Pekanbaru, Riau
Keywords: Directional Drilling, Trajectory, Kick of Point, End of Buildup, Minimum of Curvature

Abstract

Well X is a development well which is directionally drilled. Directional drilling is choosen because the coordinate target of Well X is above the buffer zone. The directional track plan needs accurate survey calculation in order to make the righ track for directional drilling. There are many survey calculation in directional drilling such as tangential, underbalance, average angle, radius of curvature, and mercury method. Minimum curvature method is used in this directional track plan calculation. This method is used because it gives less error than other method.  Kick-Off Point (KOP) and End of Buildup (EOB) analysis is done at 200 ft, 400 ft, and 600 ft depth to determine the trajectory design and optimal inclination. The hole problem is also determined in this trajectory track design. Optimal trajectory design determined at 200 ft depth because the inclination below 35º and also already reach the target quite well at 1632.28 ft TVD and 408.16 AHD. The optimal inclination at 200 ft KOP depth because the maximum inclination is 18.87º which is below 35º. Hole problem will occur if the trajectory designed at 600 ft. The problems are stuck pipe and the casing or tubing will not able to bend.

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Published
2017-06-01
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