Gas influx from reservoir into the wellbore during drilling, tripping, or other operations, is a
hazard. In the early stages, the influx may be nearly undetectable, but the kick can rapidly …

Deepwater drilling involves complex operations and equipment, so it is faced with various
operational challenges including well control accidents. This paper proposes a dynamic risk …

The main challenge in improving energy harvest faced by modern large-scale wind turbines
(WTs) comes from the fact that the blade rotor with the large inertia having a slow response …

Early detection of downhole faults in geological drilling processes can effectively reduce
downtime and prevent catastrophic drilling accidents. Considering that the changes of …

Inadequate hole-cleaning in an annulus leads to several problems such as mechanical pipe
sticking, premature bit wear, formation fracturing, and/or slow drilling. However, the literature …

Accurately and promptly detecting downhole abnormalities is of great importance to ensure
safe and efficient operation of geological drilling systems. In view of the lack of abnormal …

The present study is focused on the experimental evaluation of the non-intrusive electric
resistance tomographic (ERT) technique in the presence of different types of water-based …

In the ocean environment, the riserless mud recovery (RMR) system uses the return line as
the return channel, resulting in the injection and return channels for the drilling fluid …

Accurate and speedy determination of pressure drop during cuttings transport is an
important aspect of a drilling operation. However, the literature suggests that there is a lack …

Geological drilling process is operating under complex geological conditions, which may
lead to a high risk of downhole incidents and thus compromise the drilling efficiency. To …