Volcanic Gas Reservoir Characterization by Qiquan Ran

By Qiquan Ran

Volcanic fuel reservoirs are the recent ordinary gasoline frontier. as soon as idea too advanced, too harsh at the drilling bit, and too tough to represent, reservoir engineers and petroleum geologists alike now deal with extra complicated seismic and logging instruments, making those "impossible" box advancements attainable. Bridging significant information regarding those advanced provinces and linking a number of unconventional equipment and strategies, Volcanic fuel Reservoir Characterization:

  • Describes a collection of modern built-in volcanic fuel reservoir characterization options, supporting to make sure the powerful improvement of the field
  • Reveals the grade and courting of volcanic stratigraphic sequence
  • Presents box identity and prediction equipment, and interpretation know-how of reservoir parameters, concerning those to related complicated fields equivalent to shale

These leading edge methods and artistic tools were effectively utilized to genuine improvement of volcanic gasoline reservoirs. by way of sharing the tools and methods utilized in this sector with reservoir engineers and petroleum geologists around the globe, people with larger realizing of those unconventional basins will start to think about volcanic rock like all different reservoir.

  • Summarizes the study and explains particular case experiences of volcanic fuel reservoir advancements, exhibiting the newest achievements and classes learned
  • Supplies wisdom on volcanic fuel reservoir basins to supply significant perception into related advanced reservoirs reminiscent of shale, coal mattress methane, and heavy oil basins
  • Contains huge technique, robust practicality and excessive innovation, making this an excellent ebook for either the training and pro reservoir engineer and petroleum geologists operating with complicated reservoirs

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Sample text

Here, the top interface of volcanic formation lies at 3668 m, which is also the top surface of the volcanic edifice encountered in this well. The lithology in the interval of 3668 to 3714 m is rhyolitic ignimbrite, the acidity of which is consistent with that of the lower rhyolite. However, taking 3714 m as the interface, the gamma spectrometry log indicates that the K content in the upper and lower volcanic intervals differs by 50% and Th content differs by twice as much. The alkalinities and diagenetic environments are different up and down this interface, suggesting that these are two different volcanic edifices.

Their resistivity and density values in wireline logs are notably higher than those of the upper and lower thick sedimentary rocks, and their distribution is limited within the volcanic edifice. These sedimentary tuffs, therefore, are interpreted as deposits accumulated during the intermittent period of a volcanic formation. 05 m are formed mainly by non-equigranular arkoses, which are normal sedimentary rocks. 05 m, respectively. 3. Profile identification On the basis of single well identification, a volcanic formation can be identified in seismic profiles by downhole seismic calibration and seismic reflection analysis, and the formation top and bottom boundaries are determined.

2) Method 2: Spatial association technology based on time series of seismic data A volcanic edifice is an assemblage of various integral parts around the center of a volcanic conduit, which is continuous in time and distributes regularly in space [19]. However, a time slice reflects the instantaneous characteristic of seismic reflection. Therefore, on the basis of indicators for seismic facies identification of a volcanic edifice, the time series of seismic data is extracted continuously at a given time interval, and the spatial distribution of the volcanic edifice can be effectively predicted by slice identification and spatial association.

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