In this study, optical microscopic analyses were applied to evaluate the thermal maturity, characteristics of solid bitumen, and other organic matter finely dispersed in Oligocene shales Menilite Formation Iwonicz-Zdrój–Rudawka Rymanowska Fold (IRF) Bóbrka–Rogi (BRF) Central Carpathian Synclinorium Silesian Nappe, Outer Carpathians, Poland. The investigation was carried out at two-unit depths s...

Raman spectroscopy and vitrinite reflectance measurements of dispersed organic matter from Carboniferous shales in boreholes the northern part Intra-Sudetic Basin were used for thermal history reconstruction. Microscopic investigations have shown that is dominated by maceral group. In analysed samples, shows a varied degree alteration determined mean random (VRo) ranging 0.72% to 3.80%. Mean ap...

To study the effect of magma intrusion on thermal evolution low-rank coal with high moisture content, relationship between content variation and conductivity was analyzed by COMSOL Multiphysics numerical simulation field validation. Taking Daxing Mine in Tiefa coalfield as research background, effects finite time mechanism volatilization organic maturity seam are investigated this paper. The re...

Abstract Numerical 3D basin modeling is used to reconstruct the burial and temperature histories in onshore northeastern Netherlands, incorporating four main geological structural elements Groningen Platform, Lauwerszee Trough, Friesland Lower Saxony Basin. The framework based on recently published open access depth surface data; public vitrinite reflectance data from 28 wells are evaluate hist...

Organic geochemical evaluation of the Madbi Formation as the main source rock of the Al-Jawf Basin, NE Central Yemen was the main objective of this study. The organic geochemical methods used in the study include: rock-eval pyrolysis, total organic carbon, and optical measurements as the vitrinite reflectance and thermal alteration index. In this study, 67 well core and side-well core samples o...

Lacustrine shales hold a huge potential oil resource in China. Pore properties (pore volume, diameter, specific surface area, and fractal dimensions) their relationships with geological factors (mineralogy, insoluble organic carbon, burial depth, vitrinite reflectance) are critical for evaluating shale resource. However, the controlling pores lacustrine remain unclear, as between pore of Soxhle...

The overmature Precambrian to Lower Paleozoic marine shales from China contain relatively simple organic matter (OM) composition, which is dominated by in-source solid bitumen (i.e., in the hydrocarbon source rocks). thermal evolution behavior of original OM and determination maturity Cambrian have been challenging for decades. vitrinite-like maceral (VLM) widely present these shales, its origi...

Weiyuan gas field, located in the Sichuan basin of south China, is a large marine gas field with the oldest reservoir (the Sinian sequences) in south China. The hydrocarbon origin of the gas field has long been debated by petroleum geologists. Recently, it was recognized that a paleo-oil pool maybe the significant contributor to the gas field. Consequently, when the paleo-oil pool had been crac...

Commercial hydrocarbon discoveries in the Cretaceous of the southern Persian Gulf basin provide direct evidence that there is an effective petroleum system associated with the Cretaceous series. The revised models of thermal maturity in this region are needed to investigate lateral and stratigraphic variations of thermal maturity, which have not so far been addressed in detail for this part of ...