Fractured reservoirs are an important target for oil and gas exploration in the Tarim Basin and the prediction of this type of reservoir is challenging.Due to the complicated fracture system in the Tarim Basin,the con...Fractured reservoirs are an important target for oil and gas exploration in the Tarim Basin and the prediction of this type of reservoir is challenging.Due to the complicated fracture system in the Tarim Basin,the conventional AVO inversion method based on HTI theory to predict fracture development will result in some errors.Thus,an integrated research concept for fractured reservoir prediction is put forward in this paper.Seismic modeling plays a bridging role in this concept,and the establishment of an anisotropic fracture model by Discrete Fracture Network （DFN） is the key part.Because the fracture system in the Tarim Basin shows complex anisotropic characteristics,it is vital to build an effective anisotropic model.Based on geological,well logging and seismic data,an effective anisotropic model of complex fracture systems can be set up with the DFN method.The effective elastic coefficients,and the input data for seismic modeling can be calculated.Then seismic modeling based on this model is performed,and the seismic response characteristics are analyzed.The modeling results can be used in the following AVO inversion for fracture detection.展开更多
At present,the methods to treat common mental disorders such as anxiety,depression and insomnia are mainly based on medicine.In view of existing situation,we developed an apparatus to improve function of brain.Accordi...At present,the methods to treat common mental disorders such as anxiety,depression and insomnia are mainly based on medicine.In view of existing situation,we developed an apparatus to improve function of brain.According to the changes of EEG under different physiological rhythm,the apparatus generates pulsed light,which induces brain electricity to change with the rhythm.Clinical experiments show that the total efficiency to lessen anxiety,depression is 90% and 87%,respectively,and the total efficiency to improve the quality of sleep and prolong the first sleep time is 87%.The results show that pulsed light stimulation with specific frequency can be used to treat such mental disorders.展开更多
基金co-supported by the National Basic Research Program of China(Grant No.2011CB201103)the National Science and Technology Major Project(GrantNo.2011ZX05004003)
文摘Fractured reservoirs are an important target for oil and gas exploration in the Tarim Basin and the prediction of this type of reservoir is challenging.Due to the complicated fracture system in the Tarim Basin,the conventional AVO inversion method based on HTI theory to predict fracture development will result in some errors.Thus,an integrated research concept for fractured reservoir prediction is put forward in this paper.Seismic modeling plays a bridging role in this concept,and the establishment of an anisotropic fracture model by Discrete Fracture Network （DFN） is the key part.Because the fracture system in the Tarim Basin shows complex anisotropic characteristics,it is vital to build an effective anisotropic model.Based on geological,well logging and seismic data,an effective anisotropic model of complex fracture systems can be set up with the DFN method.The effective elastic coefficients,and the input data for seismic modeling can be calculated.Then seismic modeling based on this model is performed,and the seismic response characteristics are analyzed.The modeling results can be used in the following AVO inversion for fracture detection.
文摘At present,the methods to treat common mental disorders such as anxiety,depression and insomnia are mainly based on medicine.In view of existing situation,we developed an apparatus to improve function of brain.According to the changes of EEG under different physiological rhythm,the apparatus generates pulsed light,which induces brain electricity to change with the rhythm.Clinical experiments show that the total efficiency to lessen anxiety,depression is 90% and 87%,respectively,and the total efficiency to improve the quality of sleep and prolong the first sleep time is 87%.The results show that pulsed light stimulation with specific frequency can be used to treat such mental disorders.
