Enhancing drilling fluid properties using biodegradable waste additives: A comprehensive study on water- and oil-based systems.

The growing concerns for environmental sustainability and the need for eco-friendly practices in the oil and gas industry have sparked the exploration and development of biodegradable drilling fluids. This review highlights the impact of biodegradable waste additives on drilling fluid properties and their cooperation in minimizing the environmental concerns related to drilling fluid disposals. The examined properties include plastic viscosity (PV), yield point (YP), mud weight (MW), fluid loss, and gel strength.

Correction: Prediction of remaining useful life (RUL) of Komatsu excavator under reliability analysis in the Weibull-frailty model.

[This corrects the article DOI: 10.1371/journal.pone.

Reaction Mechanism of Wollastonite In Situ Mineral Carbonation for CO Sequestration: Effects of Saline Conditions, Temperature, and Pressure.

The research presented here investigates the reaction mechanism of wollastonite in situ mineral carbonation for carbon dioxide (CO) sequestration. Because wollastonite contains high calcium (Ca) content, it was considered as a suitable feedstock in the mineral carbonation process. To evaluate the reaction mechanism of wollastonite for geological CO sequestration (GCS), a series of carbonation experiments were performed at a range of temperatures from 35 to 90 °C, pressures from 1500 to 4000 psi, and salinities from 0 to 90,000 mg/L NaCl.

Prediction of remaining useful life (RUL) of Komatsu excavator under reliability analysis in the Weibull-frailty model.

It is an essential task to estimate the remaining useful life (RUL) of machinery in the mining sector aimed at ensuring the production and the customer's satisfaction. In this study, a conceptual framework was used to determine the RUL under the reliability analysis in a frailty model. The proposed framework was implemented on a Komatsu PC-1250 excavator from the Sungun copper mine.

Correction: Rahmani, O., et al. Experimental Investigation and Simplistic Geochemical Modeling of CO Mineral Carbonation Using the Mount Tawai Peridotite. 2016, , 353.

After careful consideration, we found that Figure 2 [...

Experimental Investigation and Simplistic Geochemical Modeling of CO₂ Mineral Carbonation Using the Mount Tawai Peridotite.

In this work, the potential of CO₂ mineral carbonation of brucite (Mg(OH)2) derived from the Mount Tawai peridotite (forsterite based (Mg)₂SiO4) to produce thermodynamically stable magnesium carbonate (MgCO3) was evaluated. The effect of three main factors (reaction temperature, particle size, and water vapor) were investigated in a sequence of experiments consisting of aqueous acid leaching, evaporation to dryness of the slurry mass, and then gas-solid carbonation under pressurized CO2. The maximum amount of Mg converted to MgCO₃ is ~99%, which occurred at temperatures between 150 and 175 °C.

Effects of sonication radiation on oil recovery by ultrasonic waves stimulated water-flooding.

Due to partial understanding of mechanisms involved in application of ultrasonic waves as enhanced oil recovery method, series of straight (normal), and ultrasonic stimulated water-flooding experiments were conducted on a long unconsolidated sand pack using ultrasonic transducers. Kerosene, vaseline, and SAE-10 (engine oil) were used as non-wet phase in the system. In addition, a series of fluid flow and temperature rise experiments were conducted using ultrasonic bath in order to enhance the understanding about contributing mechanisms.