Alvaro, Taufik (2025) Pengaruh Penambahan Graphene Oxide Nanosheet (GONS) Pada Non-Damaging Drilling Fluid (NDDF) Dalam Kondisi Salinitas Tinggi Terhadap Filtration Loss dan Rheology Lumpur Pemboran. Other thesis, Universitas Islam Riau.

Text skripsi_183210067_watermark.pdf - Published Version Restricted to Registered users only Download (7MB) | Request a copy

Abstract

During drilling operations, drilling mud is at risk of fluid loss when passing through zones with high permeability a phenomenon known as loss circulation. This occurs due to hydrostatic pressure being higher than the formation pressure, which, if left unaddressed, can lead to issues such as plugging of the productive zone and drill string sticking caused by mud cake buildup. Therefore, this study employs Graphene Oxide Nanosheets (GONs) as a nanomaterial expected to modify and enhance the rheology of the drilling mud and mitigate fluid loss. The drilling fluid used is a Non-Damaging Drilling Fluid (NDDF) with high salinity, utilizing polymers such as xanthan gum and Polyanionic Cellulose Low Viscosity (PAC-LV) to replace bentonite, which is not viable in reservoirs with high salinity conditions. Using bentonite-based mud at 20% salinity proved highly ineffective, with filtrate volume reaching 98 ml. The study uses various mud samples including, Base Drilling Fluid, Base Drilling Fluid + NaCl, NDDF with 20% salinity, NDDF + 0.2 wt% GONs, NDDF + 0.5 wt% GONs, NDDF + 0.8 wt% GONs and analyzes the filtration loss and rheology of the mud. The synthesis of Graphene Oxide Nanosheets using the Hummers method was successfully conducted and validated through Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), and Ultraviolet Visible (UV-Vis) characterization. After adding GONs to NDDF at 0.5 wt%, the mud achieved the best results with the lowest filtration loss of 9.5 ml and rheological properties compliant with API standards, making it suitable for drilling operations in highsalinity environments.

Actions (login required)

View Item