Subbasins composing a larger basin can have similar appearing sediment fills that are diachronous. It is important to construct a chronostratigraphic section for each subbasin to correctly correlate between subbasins. A methodology is presented that incorporates the sequence-stratigraphic interpretation of each subbasin, which improves correlation of systems tracts between adjacent and widely s...

Overpressure is widespread in the southern margin of the Junggar Basin, northwestern China. Pressure measurements in drillstem tests and repeated formation tests and estimates from wire-line logs indicate contrasting overpressure values between permeable sandstones and adjacent low-permeability mudrocks. In addition, excess pressure differs among anticlines with similar depth, lithologies, and ...

We introduce a system for information retrieval research in the peer-to-peer file-sharing domain. Our system, IR-Wire, is based on the popular Gnutella protocol, giving us access to a large user base and a large data set. As a search tool, IR-Wire maintains many statistics and implements a number of information retrieval ranking functions. As a research tool, our main focus, IR-Wire contains a ...

Geo data is an important foundation for any type of location-based service, but geo data often is expensive or distribution is limited by certain license restrictions. As a solution, open projects collect geo data from individuals and publish these data under a public licence. As a major drawback, the correction and integration of collected data is difficult and cost-intensive. This paper descr...

Reservoir zonation is the most important job in oil industry which dominantly relies on the major properties of rocks. Fundamental properties of rocks are usually understood by their detailed description in the field (lithofacies analysis) and laboratory (petrofacies analysis). The facies (lithofacies and petrofacies) determination in most subsurface studies is impractical, due to lack of cores...

With the explosive growth of data available on the Internet, discovery and analysis of useful information from web log data becomes a practical necessity. However, analysis of large web log files is a complex task not fully addressed by existing web access analyzers. Using commercial software, we applied data mining technology to analyze access log records collected on a web newspaper. We have ...

The optimum wire shape for minimum signal propagation delay across an line is shown to have a general exponential form. The line inductance makes exponential tapering more attractive for lines than for lines. For lines, optimum wire tapering achieves a higher reduction in the signal propagation delay as compared to uniform wire sizing. Wire tapering can reduce both the propagation delay and pow...

This work represents study the rock facies and flow unit classification for Mishrif carbonate reservoir in Buzurgan oil Field, which located n south eastern Iraq, using wire line logs, core samples petrophysical data (log porosity permeability). Hydraulic units were identified zone indicator approach assessed within each type to reach better understanding of controlling role pore types geometry...