【摘 要】
：
This study considers the Upper Cretaceous Qingshankou Formation,Yaojia Formation,and the first member of the Nenjiang Formation in the Western Slope of the nort
【机 构】
：
Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China;Petroleu
论文部分内容阅读
This study considers the Upper Cretaceous Qingshankou Formation,Yaojia Formation,and the first member of the Nenjiang Formation in the Western Slope of the northern Songliao Basin.Dark mudstone with high abundances of organic matter of Gulong and Qijia sags are considered to be significant source rocks in the study area.To evaluate their development characteristics,differences and effectiveness,geochemical parameters are analyzed.One-dimensional basin modeling and hydrocarbon evolution are also applied to discuss the effectiveness of source rocks.Through the biomarker characteristics,the source-source,oil-oil,and oil-source correlations are assessed and the sources of crude oils in different rock units are determined.Based on the results,Gulong and Qijia source rocks have different organic matter primarily detrived from mixed sources and plankton,respectively.Gulong source rock has higher thermal evolution degree than Qijia source rock.The biomarker parameters of the source rocks are compared with 31 crude oil samples.The studied crude oils can be divided into two groups.The oil-source correlations show that group Ⅰ oils from Qing Ⅱ-Ⅲ,Yao Ⅰ,and Yao Ⅱ-Ⅲ members were prob-ably derived from Gulong source rock and that only group Ⅱ oils from Nen Ⅰ member were derived from Qijia source rock.
其他文献
The effects of extreme stray current on the anodic dissolution and passivation of X80 steel in NaHCO3 solution were investigated using measurements of polarizat
A novel concept of treating oil reservoirs by nanofluids is being developed to improve oil recovery and reduce the trapped oil in hydrocarbon reservoirs.Nanopar
Hydraulic fracture is important in unconventional oil and gas exploration.During the propagation of the hydraulic fracture,the crack tip is blunted due to the d
Saturation exponent is an important parameter in Archie's equations;however,there has been no well-accepted physical interpretation for the saturation exponent.
This paper provides an introduction to the topic of water shutoff and conformance improvement.After indicating the volumes of water produced during oilfield ope
The local slopes contain rich information of the reflection geometry,which can be used to facilitate many subsequent procedures such as seismic velocities picki
An axisymmetric finite difference method is employed for the simulations of electromagnetic telemetry in the homogeneous and layered underground formation.In th
Due to the low permeability of tight reservoirs,throats play a significant role in controlling fluid flow.Although many studies have been conducted to investiga
The Carboniferous volcanic reservoir in the Chepaizi Uplift became an exploration hot target in recent years for its sub-stantial amount of oils discovered.Howe
Microscopic seepage characteristics are critical for the evaluation of tight sandstone reservoirs.In this study,a digital core approach integrating microscopic