Bystudying the source reservoir geochemical characteristics, cap physical properties, gas-bearing characteristics and reservoir-forming types of coal-measure gas (CMG) accumulation system, potential CMG resources in Huanghebei Coalfield was determined, sedimentary control mechanism analyzed, which is great significance for orderly development reservoirs. mainly includes abundant shale (SG; 2100...

In recent years, hydraulic fracturing and horizontal drilling have been applied to extract crude oil from tight reservoirs, including the Bakken formation. There is growing interest in understanding the greenhouse gas (GHG) emissions associated with the development of tight oil. We conducted a life cycle assessment of Bakken crude using data from operations throughout the supply chain, includin...

Gas reservoirs usually have high recovery due to high mobility and low residual gas saturation, although some of them producing under water-drive mechanism have low recovery efficiency. Encroachment of water into these reservoirs traps considerable amount of gas and increases the maximum residual gas saturation, which results in the reduction of gas and condensate production. Generally, the rec...

The storage of carbon dioxide by injecting into gas reservoirs has become an important technique for achieving capture, utilization, and storage. However, most studies have focused on tight reservoirs, there are still few the injection water-bearing reservoirs. This paper analyzes variation reservoir pressure during CO2 points out optimal amount in reservoir, which can provide theoretical guida...

For help in preparation of this article, thanks to Syed Ali, Chevron, Houston; and Jerome Maniere, Moscow. ECLIPSE 300, LFA (Live Fluid Analyzer for MDT tool), MDT (Modular Formation Dynamics Tester) and PVT Express are marks of Schlumberger. CHEARS is a mark of Chevron. Teflon is a mark of E.I. du Pont de Nemours and Company. How does a company optimize development of a gas-condensate field, when

The largest marine carbonate oilfield and gas condensate field in China have been found the Ordovician limestones central Tarim Basin. They are defined as large “layered” reef-shoal karstic reservoirs. However, low and/or unstable oil/gas production has a big challenge for effective exploitation ultra-deep (>6000 m) reservoirs more than 20 years. Together with static dynamic reservoir data, ...