Earlier we have revised a number of topics related to enhanced oil recovery, such as those related to chemical stimulation (18.04.2022), gas injection or water flooding (09.05.2022), steam injection (06.08.2022), and provided some information on individual aspects of steam-assisted oil recovery – SAGD approach (06.12.2022) and...

The world's leading patent offices (WIPO, IP5) released key statistics for 2021 at the end of last year. Overall results are impressive. Thus, in 2021, 2.9m patent applications were filed (+4%) and almost 1.5m patents were granted (+10%) in the top 5 patent offices (CNIPA, EPO, JPO, KIPO, USPTO). Substantial decline in the...

Previously, we published articles concerning chemical stimulation (18.04.2022), gas injection or water flooding (09.05.2022), and steam injection (06.08.2022) technologies used in unconventional oil production, and, specifically, about Steam-assisted gravity drainage approach (06.12.2022). Now we will consider a group of...

Among the types of reactors used in biomass gasification, fluidized bed reactors form the largest group of technical solutions described in patents and applications over the past 20 years. Below we provide for your consideration a brief analysis of inventions related to this technology. More than 1300 patent documents related...

Previously, we published articles concerning the offshore wind turbines (22/08/2022), and wind turbine blade de-icing technologies (30/12/2022). Here we will review patent documents related to the technologies lightning protection in wind turbine blades. The importance of this aspect of wind turbine operation is indicated by...

Various options of energy storage are described in patented solutions in the field of solar energy. They include such technologies as those using latent heat, molten materials, compressed air, and chemical reactions. In the pool of collected patent documents on solar energy storage, technical solutions disclosing the use of...

In previous comment dated 02/07/2022, we have provided a summarized review of "WIND ENERGY. Offshore Wind Turbine. Patent Database. June 2022" and basic statistical data from it. Now we will take a closer look at one of the important aspects of wind power plant operation. In recent years, there has been an increase in...

In continuation of the previous article dated 08.09.2022, dedicated to patent analysis of inventions related to the floating solar panels with tracking system, below we provide a brief analysis of inventions related to single-axis trackers for your consideration. Almost 1800 patent documents published in the twenty-year...

Previously, we published articles concerning the problems of high costs of equipment repair and replacement in directional drilling technology (18.11.2022), and equipment and procedures for well deflecting wellbores during the drilling process and correction of such deflection (27.11.2022). Here we will analyse patent...

In heavy and extra-heavy oil production, steam stimulation is one of the most commonly used approaches for enhancing the recovery process. Thermal energy of injected steam reduces the viscosity of oil to improve its mobility and facilitate the production process. Conventionally, steam stimulation can be performed by using...