This article describes an approach based on artificial neural network to identify waterflooded zone of continental clastic reservoirs. For the logging sequence of waterflooded zone matching the characteristics of the continental oilfield, the application of artificial neural network algorithm is able to distinguish water layers, oil reservoirs and dry layers among reservoirs of waterflooded zon...

Paenibacillus sp. strain A2 is a Gram-negative rod-shaped bacterium isolated from a mixture of formation water and petroleum in Daqing oilfield, China. This facultative aerobic bacterium was found to have a broad capacity for metabolizing hydrocarbon and organosulfur compounds, which are the main reasons for the interest in sequencing its genome. Here we describe the features of Paenibacillus s...

Distributed generation (DG) based on oilfield associated gas has the characteristics of dispersive and small capacity. According to load control type, DG is treated as PQ point in power flow calculation. A distribution network reconfiguration algorithm based on simulated annealing and immune is proposed in this paper. Boltzmann simulated annealing operator is used in selection operation, and me...

During nearly 25 years of water injection development in Gaotaizi reservoir LHP oilfield, due to poor physical properties, adaptability well pattern and difficulty establishing effective displacement between oil Wells, linear injection, infill adjustment refracturing tests have been carried out successively. Although certain effects seen, the are short unsatisfactory. In this paper, microscopic...

Water flooding is one of the most influential methods for pressure maintenance and enhanced oil recovery. However, water flooding is likely to develop the formation of oilfield scale. Scale formation in reservoirs, due to the mixing of injection water and formation water, could cause formation damage and production limit. Therefore, it is necessary to simulate the compatibility of brine and inj...

Abstract The chief source of the oilfield scale is mixing incompatible waters. This study demonstrated that reservoir Mishrif formation (Halfaya oilfield) with six types injection water sources, including Tigris River water, producing formation, Gulf seawater, Marshes Middle Kirkuk and Main Outfall Drain (AL-Masab AL-Aam Channel), leads to salt crusts cause reduction rock permeability. Accordin...

Abstract Deep sandstone reservoirs in the Paleogene Enping Formation of A-Oilfield, Pearl River Mouth Basin, are significant offshore petroleum targets for this basin. Compared with adjacent water zones and shales, pays low resistivity contrast (LRLC). Without new unconventional well-logging techniques, conventional interpretation has encountered difficulties these LRLC pays. In article, based ...

Research on the modeling of rock mechanics parameters is of great significance to the exploration of oil and gas. The use of logging data with the Kriging interpolation to study rock mechanics parameters has been proven to be effective in reservoir prediction and other oilfield applications and can provide additional data. However, there will sometimes be a great deviation due to the limited sa...