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Well Design

Competency Statement:

Define basic well design parameters, including well profile, casing points and casing/hole diameters. Design casing strings and outline cementing requirements. Select surface equipment components. Generate preliminary cost estimates for inclusion in AFE.

Learning Objective:

Upon completion of this module, the participant should be able to
  • Select a surface location for a new well and establish an optimal target radius
  • Pick casing points and specify casing and hole diameters for each drilled section
  • Establish a well trajectory in keeping with overall drilling objectives
  • Select casing weights, grades and connections based on consideration of maximum load conditions
  • Determine general requirements for primary cementing operations.
  • Specify wellhead equipment components and their working pressure ratings.

Assignment Instruction:

An initial review of the Adams 8 well proposal served to clarify the drilling objectives, identify critical well planning issues and provide some knowledge of the surface and subsurface environments. It is now time to start the designing the well. The starting point will be to finalize the surface and bottomhole locations so that you can establish a well profile. At the same time, you will pick your casing points, decide on the casing and hole diameters for each interval and recommend the working pressure ratings for the wellhead components. You will then specify the weights, grades and connections to be used for each casing string, and outline the primary cementing requirements for the surface casing. Finally, you will provide a cost estimate to be used in preparing the AFE for this well.