New progress of microbial prospecting of oil and gas in China: Taking the Satellite Oilfield in Daqing as an example

Abstract

The Microbial Prospecting of Oil and Gas (MPOG) is applied to the matured development area in the Satellite Oilfield in Daqing for the first time. And with the MPOG, the hydrocarbon accumulation regulation controlled by faults is interpreted, and the matured development area is extended out to western part. At the same time, four microbial anomalies are discovered. The MPOG results were verified by the hydrocarbon-bearing conditions of the 10 drilled wells within the following half a year, and the consistent rate is up to 80%, which add about 300×10 4 t of the explored petroleum-in-place. Through study and successful application of MPOG to the Satellite Oilfield, the basis of the application from the exploration to development field is substantially established, and standard system of microbial anomaly is more precisely built for the Satellite Oilfield, which provided an effective explanatory item for the studied and adjacent region, even for the whole Songliao Basin, and also a new technique for complicated reservoirs, especially for the later stage development of litho-reservoirs in China. Therefore, it must have profound influence upon the oil and gas exploration, especially upon the remaining oil, extension and reserves addition of the developed area in China.

Research on Application of Microbial Exploration Technology Based on Abnormal Index System

“…The fact that the cellular content and activity of hydrocarbon oxidizing bacteria (HCOs) in soil and sediment samples is relatively low (comparing with the other physiological groups of bacteria) makes it possible to use the MPOG method to detect oil and gas reservoirs [17,18]. Depending on ecological conditions and enumeration steps (using fluorescence techniques, detection by nucleic acid analysis), the range spans 103 to 106 cells per gram.…”

Significance of petroleum seepages in hydrocarbon exploration-case study of Khourian Desert, Central Iran

“…As an indirect geochemical method, hydrocarbon-oxidizing bacteria have been regarded as they are usually abundant in the shallow soils/sediments located above the hydrocarbonbearing strata. The basis for microbial detection of petroleum lies in the bacteria's ability to metabolically oxidize some portion of the hydrocarbons as they migrate through and out of the soil substrate (Philp and Crisp 1982;Yuan et al 2009;Tedesco 2012;Rasheed et al 2015;Varjani 2017).…”