Enhanced geothermal systems (EGS) are a potential heat source in many parts of the world, even locations where temperature gradient is relatively low. We present here an integrated study reflection seismic data, borehole logs and seismicity analysis performed conjunction with exploratory project operated by E.ON Malmö, Sweden. In 2020, pre-existing 2.1 km deep FFC-1 through sedimentary cover wa...

Thermoset and thermoplastic polymeric materials are used as coatings on the bore of downhole tubulars such as water injectors in the oil industry. Previous work has indicated that such coatings can fail by impact damage and by abrasion from the wire used to lower inspection tools down the tubular. The wire is commonly called “slickline” and the type of wear is called “wireline wear”. However, t...

Host location by parasitoids and dipteran predators of bark beetles is poorly understood. Unlike coleopteran predators that locate prey by orienting to prey pheromones, wasps and flies often attack life stages not present until after pheromone production ceases. Bark beetles have important microbial symbionts, which could provide sources of cues. We tested host trees, trees colonized by beetles...

In conventional wireline and LWD/MWD formation testing, downhole predictions for rock fluid properties are based on simplified Darcy flow models, but only mathematical expediency. These require initially constant pressures that uniform throughout the reservoir. This limitation precludes common applications in overbalanced drilling, so supercharge or near-well invasion effects - associated with ...

Much of the research in software engineering focuses on understanding the dynamic nature of software systems. Such research typically uses automated instrumentation or profiling techniques on the code. In this thesis, we examine logs as another source of dynamic information. Such information is generated from statements inserted into the code during development to draw the attention of system o...

Decaying wood is related to nutrient cycling through its role as either a sink or source of nutrients. However, at micro scales, what is the effect of decaying logs on the physical, chemical, and biotic characteristics of the soil underneath? We took samples from a 0 to 5 cm depth under and a 50 cm distance away from decaying logs (Dacryodes excelsa and Swietenia macrophylla) at 2 stages of dec...

Access logs may offer service providers a lot of information about specific users. Depending on the type offers, operator is capable obtaining user’s IP, location, communication habits, device and so on. In this paper, we analyze sample instant messenger that operating for certain period time. our sandbox, gathered enough data to correlate user habits with their localization, even contacts. We ...

Contextual data plays an important role in modeling search engine users’ behaviors on both query auto-completion (QAC) log and normal query (click) log. User’s recent search history on each log has been widely studied individually as the context to benefit the modeling of users’ behaviors on that log. However, there is no existing work that explores or incorporates both logs together for contex...