A COMPARATIVE STUDY BETWEEN SURFACE AND SUBSEA BOP SYSTEMS IN OFFSHORE DRILLING OPERATIONS

R. I. Tsukada, C. K. Morooka, Marcio Yamamoto

Abstract


The high demand for petroleum, associated with its high price, has motivated many major petroleum companies to operate in deep and ultra-deep waters. This trend brings about many technical and economical challenges. One alternative to drilling operations in ultra-deep water is Surface Blow-Out Preventer (SBOP), a technique that has proven to be very promising from many technical and scientific works. The present study introduces a comparative analysis between the surface and subsea BOP system installation in offshore drilling operations. We have focused on results for riser displacement behavior and stresses. Advantages and disadvantages for the each system are discussed, particularly for offshore deepwater drilling operations.

Keywords


drilling riser; SBOP; BOP; drilling system

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