Horizontal Completion Options in Reservoirs With Sand Problems

Abstract

Economic efficiency in today's oil and gas industry requires careful consideration of all horizontal openhole completion criteria during the completion design stage. This paper will review the scenarios that can limit the success of openhole horizontal completions and will focus on problems inherent to sand-producing reservoirs and their management using 1) prepack screens available today and new screen design innovations, 2) recent 90-degree short-and long-radius screen bend tests that determine flexibility characteristics, 3) mechanical fluid-loss control systems, 4) circulation options available to the operator for openhole cleaning 5) and new innovations in zonsl isolation with sliding sleeve circulation devices that address sanding problems.Case histories of several unique completions that proved to be successful in controlling premature water breakthrough and sand problems in fractured reservoirs will be presented, followed by a summary of the important considerations for openhole horizontal completion design.

Development of Novel Nanodetectors in Drilling Fluids To Identify the Contribution of Different Producing Zones in Naturally Fractured Carbonate Reservoirs: From the Laboratory to Field-Level Implementation

“…In these types of reservoirs, the wells can be completed open hole. 1 However, this type of completion makes it difficult to identify the zones from which the oil production comes. Additionally, as a result of the overpressure condition evidenced in the reservoir, drilling operations must be carried out while maintaining the hydrostatic pressure above the pore pressure to prevent the influx of formation fluids into the wellbore.…”

“…Carbonate reservoirs are vital for world energy development because they contain more than 60% of oil reserves. In these types of reservoirs, the wells can be completed open hole . However, this type of completion makes it difficult to identify the zones from which the oil production comes.…”