A major Middle East operator requested the DSI PBL Split Flow technology to be utilized during drilling of the 16“ section of oil production well in their current field, this section was to be drilled from a depth of 1,261 feet from 6 deg inclination to a depth of 5,805 feet to 46 deg inclination at section TD. The BHA consisted of an RSS and PBL circulating sub configured for the requested split of 75 % flow to BHA and 25 % flow through the PBL ports.
The hydraulic information provided by the client enabled DSI Engineering to calculate the feasibility of this configuration based on the collective parameters and conditions.
The application was designed to give 1,100 constant gpm to the BHA to generate the appropriate pressure drop to the RSS pads to enable optimum steerability. The split flow diverted through the ports of the PBL circulating sub would increase annular velocity to provide enhanced hole cleaning during the drilling process.
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