Developing novel bio-nano catalyst well clean up fluid to remove formation damage induced by polymeric water-based drilling fluids
نویسندگان
چکیده
Drilling and completion fluids may cause significant formation damage in oil gas reservoirs, directly affecting productivity. For many years, operators have applied different stimulation practices such as acidizing, oxidizers, chelating agents, enzyme treatment to remove associated with drilling filter cake. An enzyme-based biological was combined other chemicals or additives a selective well clean-up practice improve removing polymer content the However, secondary deep cleaning of invaded zone wettability alteration remained main concern. This paper presents development an innovative fluid formulation by immobilizing nanoparticle Bio-Nano Well Clean-Up Fluid (BNWC) potassium chloride brine enhance WBM cake removal. Several bulk experiments, including; precipitation, iodine test, viscosity measurement, demonstrate enzyme's optimization, concentration, base brine. BNWC showed highest HPHT filtration rate at 200 °F differential pressure 100 psi increased more than 90 percent compared conventional same Contact angle measurements confirmed carbonate rock water-wet, IFT higher mobility potential. Finally, core flooding tests reservoir conditions 300 enhancement injection 50% improvement permeability after damage. The immobilization has been developed successfully for applications bioremediation, farming, industries, but novelty this research demonstrates application nanobiocatalysts first time. enhances enzymatic activity removes primary
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ژورنال
عنوان ژورنال: Journal of Petroleum Science and Engineering
سال: 2022
ISSN: ['0920-4105', '1873-4715']
DOI: https://doi.org/10.1016/j.petrol.2021.109809