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method to generate microfractures by chemical reaction in low-carbonate-content shale reservoirs

In oil and gas production, many of the easy to access wells have already been drilled. Due to increasing energy demand, new methods that improve hydrocarbon extraction are needed. A common method to crack reservoir rocks is hydraulic fracturing, this involves pumping water, sand and chemicals into the reservoir at high pressures. In turn, this will...

Published: 9/14/2018 | Inventor(s): James Sheng, Qiang Chen

Keywords(s):

Category(s): Chemical Process, Oil & Gas Exploration, Petroleum Engineering, Energy

Seamless Mode Change between Grid-connected Mode and Islanded Mode for PV Systems

Technology SummaryDistributed generators, including solar power, in the microgrid, must be able to work in both grid-connected mode and islanded mode (the condition in which a distributed generator continues to power a location even though electrical grid power is no longer present), with good transient performances during mode changes. This technology...

Published: 9/5/2018 | Inventor(s): Beibei Ren, Yeqin Wang

Keywords(s):

Category(s): Electronics, Energy, Wind Energy

Solid State Smart Transformer

Electric transformers generally increase and decrease the voltage of the transmitted electricity appropriately to optimally transmit electricity with minimal power losses. They are used numerously by the utility industry for the transmission of electricity. However, in their present state, the regular transformers perform only the job of voltage escalation...

Published: 7/2/2018 | Inventor(s): Stephen Bayne, Tyler Flack

Keywords(s):

Category(s): Energy

Economic Analysis of Renewable and Battery Storage Systems

In the past several years, there has been tremendous increase in power production by renewable energy resources and the energy projection profiles indicate that the trend will continue for the next decade. The development and application of battery energy storage systems in various fields such as electric vehicle, renewable energy, and grid has been...

Published: 7/2/2018 | Inventor(s): Anitha Subburaj

Keywords(s):

Category(s): Energy

Method and model for accurate and fast power flow analysis in power systems operation and planning

Power flow analysis in power systems and planning is used to calculate voltage magnitude and angles across power grids. It gives information regarding how power generation and demand is balanced in a system and if there is any excess in demand or shortage in generation that needs to be taken care of. Other applications include but not limited to electricity...

Published: 7/2/2018 | Inventor(s): Sajjad Abedi, Seyed Fatemi

Keywords(s):

Category(s): Energy, Electronics

Fracturability Index for Optimal Well Placement and Fracture Positioning

The early detection of "sweet spots" for oil/gas well site selection and fracturing in shale reservoirs is a challenge for many operators. Most of the time, unique parameters are utilized (i.e. brittleness) to determine the "sweet spots" for well site placement. Additionally, the fractures are generally placed equidistantly. This...

Published: 11/28/2018 | Inventor(s): Mohamed Soliman, Ahmed Alzahabi, Tim Spinner, Noah Berlow

Keywords(s): Oil and Gas Exploration, Petroleum

Category(s): Energy, Oil & Gas Exploration, Petroleum Engineering

Battery Storage with High Energy and Rapid Charge Rates

The energy density of a storage device refers to the amount of energy that can be stored within a device of a specific size. Power density refers to the manner in which energy can be stored. The greater the power density, the faster the storage device can be charged and discharged. Typically, batteries have high energy density and low power density...

Published: 10/23/2018 | Inventor(s): Shiren Wang

Keywords(s):

Category(s): Electronics, Energy, Nanotechnology