Unconventional reservoirs have strong heterogeneity, with significant differences in the distribution of porosity and permeability. Fracturing is an important technology for increasing natural gas production unconventional oil reservoirs. For high temperature low permeability, rapid increase acid rock reaction rate leads to a decrease effective distance acidic fluids fracture conductivity, espe...

Abstract Shales are mostly unexploited energy resources. However, the extraction and production of their hydrocarbons require innovative methods. Applications involving carbon dioxide in shales could combine its potential use oil recovery with storage view impact on global climate. The success these approaches highly depends various mechanisms taking place rock pores simultaneously. In this wor...

In world practice, the role of reproduction raw material base oil production by implementing modern methods recovery enhancement (thermal, gas, chemical, microbiological) on basis innovative techniques and technologies is rapidly growing becoming more important. It concluded that at present, priority increasing reserves in development industrial introduction integrated enhanced recovery, which ...

This study discusses a new workflow for fracture characterization and modeling using geophysical (microseismic and 3D surface seismic) data along with independent reservoir information (such as well logs). The framework is ideally suited for unconventional environments such as shale and tight reservoirs where modern technologies such as the use of hydraulic fracturing and passive seismic monito...

As an unconventional clean resource with huge reserves and a wide distribution, natural gas hydrates (NGHs) have good application prospects. However, due to limited understanding available production technology for NGHs, there is still large gap between current tests commercial exploitation. A breakthrough in reservoir stimulation technologies key realizing the industrialization of NGHs future....

NEDO has developed MEPAS, a software for exploration of geothermal reservoir. MEPAS has bcen developed as a tool for geologists to analyze earthquakes and find fractures by comparing earthquakes with other exploration data. MEPAS consists of a seismic data processing part and a geological analysis part. The geological analysis part features 3D display, time and space distribution display, fract...

With the commercial development of extremely low permeability oil and gas reservoirs, new challenges have arisen both from operational and reservoir standpoints. Reservoir models, which previously yielded reasonable results for reserves estimates and production forecasts, no longer do so. Various new models and techniques have been proposed to improve the accuracy and reliability of reserves es...

Core has traditionally played a key role in the characterisation of conventional and unconventional hydrocarbon reservoirs, from exploration to mature production, because it provides only means observe make measurements on actual reservoir rock. However, recent oil-industry downturns have driven many question value routinely taking core, given associated costs […]

The success of shale gas in North America has attracted increased interest in “unconventional” reservoirs. Two critical factors for shale-gas reservoirs are units amenable to hydrologic fracture stimulation and sufficient natural gas content. The effectiveness of hydrologic fracture stimulation is influenced by rock geomechanical properties, which are related to rock mineralogy. The natural gas...