Digital oilfield

Review of Downhole Wireless Communication Techniques

For openhole horizontal wells, providing power and data through an umbilical is very challenging.

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Fig. 1—Simplified representation of an openhole horizontal-well environment, having no production tubing, liner, or umbilical in the laterals (L1 and L2) and the mainbore (L0).

For openhole horizontal wells, providing power and data through an umbilical is very challenging. Wireless communication is the essential component of any downhole monitoring-and-control solution. A wireless solution can also significantly reduce the complexity and cost associated with the wired solutions. In this paper, various wireless communication techniques are classified and an extensive review of state-of-the-art downhole applications is presented.

Introduction

Long-term reservoir monitoring remains one of the critical requirements for the effective development and optimization of oil and gas reservoirs.

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