Optimization Rate of Penetration in Directional Drilling with Adjustable Bit Rotating and Hydraulic Hole Cleaning

Herianto, Herianto (2021) Optimization Rate of Penetration in Directional Drilling with Adjustable Bit Rotating and Hydraulic Hole Cleaning. European Journal of Applied Sciences (EJAS), 9 (5). pp. 411-425. ISSN 2054-7412

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Official URL: DOI:10.14738/aivp.95.11097.

Abstract

Some directional well drilling has a penetration rate that is not optimal due to
several things, including RPM and poor hole cleaning. RPM settings in directional
drilling for build up and tangential sections are controlled by hydraulics on the
downhole mud motor by adjusting flow rate and nozzle size in the hydraulic motor.
The amount of mud that enters the nozzle inside the motor will provide optimum
RPM. The amount of ROP is influenced by the pump rate and the power on the
motor. To control good cleaning of the hole in the bit to clean the cutting at the
bottom of the drill hole the BHHP/HHP value is at least 48%. Hole cleaning is based
on turbulent flow properties, cutting concentration, cutting transport ratio, and
particle bed index. The hole cleaning parameters in the annulus must consider the
flow pattern that occurs and the parameters of good cutting. In this research, it will
be studied in an integrated manner to regulate the pump rate and pressure by
providing sufficient RPM in the downhole mud motor and cleaning the cutting at the
bottom of the hole to prevent from occurring bit balling and regrinding from
occurring.
Keywords: Directional drilling, Drilling optimization, Adjustable RPM, Hole cleaning.

Item Type:	Article
Subjects:	T Technology > TN Mining engineering. Metallurgy
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Dr. Ir. MT HERIANTO TOPAN
Date Deposited:	07 Apr 2022 01:57
Last Modified:	07 Apr 2022 01:57
URI:	http://eprints.upnyk.ac.id/id/eprint/29334

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