Summary Our objective is to present selected rheological and mechanical properties of rock-based geopolymers contaminated with different concentrations drilling fluids. The possible flash setting the maximum intake fluids before seeing a dramatic deterioration are presented. Rock-based designed for cementing conductor surface casing were prepared cured up 28 days at 22°C atmospheric pressure. W...

The main task of drilling the formation by the bit is done via scraping, crushing and grinding. Discharging the fluid from the bit nozzles is done with high pressure which assists to break the rocks. Different parameters affect the bit selection and design for each drilling formation, but the most important one is drillability that depends on hardness of the formation. In this paper, the design...

Site U1322 is the easternmost site drilled in the Ursa basin by Expedition 308. Of the three sites in the Ursa Basin, Site U1322 has the thinnest sediment cover above the permeable Blue Unit. The principal objectives of drilling Site U1322 were to document rock physical properties at the location of minimal overburden in the Ursa Basin, measure in-situ formation temperature and pressure, docume...

Esters were found to be promising alternatives oil, as a constituent of drilling fluids, due their biodegradability and bioaccumulation attributes. In this study, we used ethyl octanoate ester (EO) low molecular weight synthetic oil for formulating an ester-based fluid (EBDF). Aluminum oxide nanorods (nanoparticles) introduced Pickering emulsion stabilizer. Like the commercial emulsifiers, they...

Site U1324 is the westernmost site drilled in the Ursa basin by Expedition 308. Of the three sites in the Ursa Basin, Site U1324 has the thickest sediment loading above the permeable Blue Unit. The principal objectives of drilling Site U1324 were to document rock physical properties at the location of maximal overburden in the Ursa Basin, measure in-situ formation temperature and pressure, docu...