Browse

Sand production poses a major challenge in the development of weakly consolidated and unconsolidated sandstone reservoirs, leading to equipment erosion, wellbore plugging, reduced productivity, and increased operational costs. Downhole sand control filters, primarily deployed as mechanical screens, are essential to retain formation sand while permitting hydrocarbon flow with minimal impairment. This review synthesizes established industry practices, laboratory sand retention test results, and field performance dat...

Accurate, real-time characterization of drilling fluid rheological properties, such as plastic viscosity, yield stress, and gel strength, is vital for optimizing oil and gas drilling operations and advancing sustainable exploration. This study assesses advanced sensor technologies - ultrasonic sensors, inline viscometers, optical flow analyzers, and microfluidic sensors-for automated, real-time measurement of these properties in water-based, oil-based, and synthetic-based muds. Experiments utilized a closed-loop f...

The monitoring of open-pit slope stability is critical for safety, economic, and environmental reasons. The comprehensive approach to monitoring has been analyzed, addressing safety, economic, technological, ecological, legislative, and social responsibility aspects, ultimately contributing to sustainable mining practices. Various methods and technologies for monitoring slope stability have been determined as essential. Visual inspections are useful, but they depend on the qualifications of the observer and may ov...

The development of efficient drilling tools tailored to the unique geological conditions of Kazakhstan's drilling sites is paramount for optimizing well construction operations. This study focuses on the design, fabrication, and evaluation of a combined spud bit specifically engineered for drilling technological wells in Kazakhstan. The combined spud bit integrates both polycrystalline diamond compact (PDC) and carbide cutters within a single robust structure to enhance drilling performance across a diverse range ...

A comprehensive study of composites using traditional methods of testing mechanical properties in combination with methods of digital optical and scanning atomic force microscopy made it possible to establish stable correlations between the content of chromium diboride CrB2 additive with an average grain size WC, microstructure parameters, hardness, fracture toughness, ultimate strength at bending and compression. The optimal ratios of the components of the WC–Co-CrB2 system have been established, at which a finel...