There has been an increasing interest in seafloor exploitation such as mineral mining in deep-sea hydrothermal fields, but the environmental impact of anthropogenic disturbance to the seafloor is poorly known. In this study, the effect of such anthropogenic disturbance by scientific drilling operations (IODP Expedition 331) on seabed landscape and megafaunal habitation was surveyed for over 3 y...

The implementation of sustainable manufacturing techniques to make machining operations more eco-friendly is a demanding issue that has gained attention from academic and industrial sectors. In some operations, large quantity fluids wasted easier, especially during the difficult-to-machine materials such as stainless steel. circumstances, many researchers are investigating techniques. Therefore...

Centrifugal pumps are widely used in the oil and mining industries. In contrast to water pumps, centrifugal industries for transportation of drilling fluid, which is typically non-Newtonian fluid. Drilling fluids usually modeled as power-law with varying shear viscosity imposed rates. this paper, a numerical simulation fluid flow pump was simulated, only flow-rate magnitude, using comparison. T...

Shell must cease drilling well before the water freezes over lest a late-season blowout cause oil to accumulate under the ice through the winter.

In the process of drilling, drilling fluid will invade into bedding plane shale under action pressure difference that cause hydration collapse and wellbore instability. order to ensure stability during oil gas it is necessary clarify invasion law along fractures process. The immersion experiment method often used study fluid, which quite different from actual underground. this paper, depth conf...

Much has been written by economists about the sources of the productivity slowdown; and self-serving policy recommendations by interest groups abound. Strangely, the two are seldom connected. It is as if, upon seeing a neighbor jog his rounds more slowly than usual, we give him our expert advice without finding out why. But, surely, our advice to our neighbor must depend on the source of his la...

Renewable energy is seen as the future source for meeting the world’s growing demand, with geothermal offering a constant and independent supply. Tapping geothermal energy is not always straightforward as deep drilling is required in order to access this high -temperature resource. Geothermal drilling is expensive and is financed by the operator (usually districts or state representatives) with...

The Measurement/Logging While Drilling (M/LWD) system is a kind of sensors system which is used to help oil/gas drilling field technicians to steer well drilling. In M/LWD, several kinds of sensors are installed into drill string to measure the underground logging data during well drilling operations, and a sink within the drill string collects the logging data from the sensors and then transmi...

It is common knowledge in the oil industry that the typical cost of drilling a new offshore well is in the range of $30-40 million, but the chance of that site being an economic success is 1 in 10. Recent advances in drilling technology and data collection methods have led to oil companies and their ancillary companies collecting large amounts of geophysical/geological data from production well...