Perpustakaan Digital ITB

This study analyzes breakdown and near-wellbore friction (NWB) issues in the application of multi-stage hydraulic fracturing (MSF) technology using the plug and perf method in horizontal wells. The study uses field data from horizontal wells that utilize MSF technology to increase production in low-permeability reservoirs. Breakdown issues in well F are caused by ineffective perforation, while NWB is influenced by tortuosity and ineffective perforation as well. Solutions implemented for breakdown issues include re-perforation, use of a swinging pump, reducing interval length, extending jetting time duration, using nitrated fluids, and adjusting fluid composition by replacing KCl brine with linear gel. To address NWB issues, perforation quality was improved through more efficient design, cement quality improvements, and the use of sand slugs to reduce friction. The implementation of these solutions demonstrated improved breakdown success, reduced friction, and better proppant distribution, with cost efficiency of up to 40% compared to some vertical wells. The recommendations from this study include improving cement quality, extending AJP duration using nitrified, and optimizing pumping rate to enhance future MSF success. This study is expected to contribute to the optimization of hydraulic fracturing design and implementation in horizontal wells.