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All Journal Journal of Petroleum and Geothermal Technology
Putradianto, Ristiyan Ragil
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Earth & Planetary Sciences Energy Engineering

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EVALUATING CUTTING TRANSPORT ON 12 ¼” SECTION WELL TM-1 Widyaningsih, Ratna; Idea, Kharisma; Utami, Ayu; Putradianto, Ristiyan Ragil; Jati, Dhika Permana; Dzulfiansyah, Pratama; Hartoyo, Puji
Journal of Petroleum and Geothermal Technology Vol. 5 No. 1 (2024): May
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jpgt.v5i1.10742

Abstract

Mud hydraulics on a 12-1/4" section needs to be planned properly. Mud hydraulics design on a 12-1/4" section includes determining mud density, flow type, pressure loss, pump specifications, bit hydraulics and cutting lifting design. The purpose of bit hydraulics design is to determine the optimum flow rate. Mud hydraulics optimization is carried out using methods the Bit Hydraulic Horse Power (BHHP), Bit Hydraulic Impact (BHI) and Jet Velocity (JV) methods, where the analysis is in the form of graphs. The graph is analyzed by using a trial and error method to obtain the recommended flow rate so as to provide good cutting lifting. where the expected recommendation analysis are Cutting Transport Ratio (Ft) > 90%, Cutting Concentration (Ca) < 5%, and Carrying Capacity Index (CCI) > 1. The analysis results from the graph show that for the hole 12-1/4", it is recommended to use an optimum flow rate of 626.6 gpm with minimum value of Ft is 90.01%, Ca is 0.87% and CCI is 1.95. These values are stated to be good by using 15-15-16 nozzle bit combination. The Flowrate value can be increased up to 785 gpm by using 18-18-20 nozzle bit combination.. Keywords: Hydraulic Mud Planning, Optimum Flow Rate, Cuttings Removal.
Evaluation of Drill Bits Use in KRS-09 Well, Kuarsa Field Based on Well Log Data, XRD Testing and MBT From Drill Cuttings Alfatah, Faritsi Luqman; Buntoro, Aris; Swadesi, Boni; Hartoyo, Puji; Putradianto, Ristiyan Ragil
Journal of Petroleum and Geothermal Technology Vol. 6 No. 2 (2025): November
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jpgt.v6i2.14876

Abstract

The use of drill bits in well drilling is very important to break and penetrate rocks. The selection of drill bits is usually done by testing drill bits from previous wells that have similar static rock mechanical parameters, but this method is time consuming and expensive because the core must be analyzed in the laboratory. As an alternative, the selection of drill bits is evaluated using logging data as an approach to calculating the Unconfined Compressive Strength (UCS) value whose accuracy is improved by integrated the brittleness index through X-Ray Diffraction (XRD) analysis and Mechanical Specific Energy (MSE) parameter to assess how efficiently drilling is performed. The obtained parameter data is then calculated for correlation using Pearson correlation. Integration of rock mechanical (UCS, BI, MSE) and mineralogy has proven to be more effective in selecting drill bits than experience-based methods. Therefore, drilling planning should consider rock strength, deformation properties, and mineral composition to improve drill bit efficiency and life.
Co-Authors Alfatah, Faritsi Luqman Ayu Utami, Ayu Boni Swadesi Buntoro, Aris Dzulfiansyah, Pratama Hartoyo, Puji Idea, Kharisma Jati, Dhika Permana Widyaningsih, Ratna