There is growing evidence for ice and fluids near the surface of Mars with potential discharge of brines, which may preserve a record of past life on the planet. Proven techniques to sample Mars subsurface will be critical for future NASA astrobiology missions that will search for such records. The required technology studies are underway in the McMurdo Dry valleys, Antarctica, which is serving...

The pace of energy development in the West is staggering. Since 1990 Colorado alone has seen a 450% increase in natural gas production, and now has more than 27,000 active gas wells, according to a fact sheet from the Western Colorado Congress, a community action group. This explosive growth puts the energy business into more frequent conflicts with traditional surface uses such as ranching, wi...

Pore pressure can be obtained from seismic interval velocity by the to pore transform technique. In this paper, authors present Eaton experimental method calculate for some wellbores in Cuu Long and Song Hong basins, where complex processes of subsidence, burial, geological transformation, geothermal activity took place, causing abnormal zones.The results show that pressures calculated data are...

Lost circulation is one of the most significant contributors to wellbore instability and causes an increase in drilling operation costs. It also a major contributor nonproductive time must be minimized for improved economic operational performance. The objective this research provide tools information about specific loss management techniques that drillers can use minimize lost circulation. Thi...

Ice coring of temperate and polythermal glaciers demonstrates some limitations of most electromechanical (EM) and thermal electric (TE) drills. Most TE drills are heavy, require a heavy power system, work slowly and cannot operate in boreholes going through the cold–temperate ice transition. Antifreeze thermal electric drills (ATED) are capable of operating in polar ice caps, polythermal and te...

For complex drilling operations with narrow geo-pressure windows, it is not uncommon to have problems with formation fracturing, due to erroneous mud pump management. To assist the driller in managing the circulation, it is possible to limit both the acceleration of the mud pumps whilst changing the flow-rate as well as the actual flow-rate, to avoid generating downhole pressure above the fract...

Drilling costs can be 80% of geothermal project investment, so decreasing these deep drilling substantially reduces overall costs, contributing to less expensive electricity or heat generation. Plasma Pulse Geo (PPGD) is a contactless technique that uses high-voltage pulses fracture the rock without mechanical abrasion, which may reduce by up 90% conventional rotary costs. However, further deve...

Drilling fluid plays the same role in oil and gas well drilling as blood human body. A new type of oil-in-water (o/w) emulsion has been developed using diesel dispersed phase, brine water continuous xanthan gum viscosity modifier clay stabilizer filtration controlling agent. Initially, standard recommended techniques were opted to detect rheological properties emulsions. The fluids have also sh...

As hotspots of local biodiversity in the deep sea, preservation of cold-water coral reef communities is of great importance. In European waters the most extensive reefs are found at depths of 300 - 500 m on the continental margin. In Norwegian waters many of these reefs are located in areas of interest for oil and gas exploration and production. In this study drilling was carried out in the Mor...