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  • 1
    Online-Ressource
    Online-Ressource
    Calibration Method of Petroleum Underground Horizon Based on High Precision Gravity and Magnetic Exploration
    Universidad Nacional de Colombia ; 2020
    In:  Earth Sciences Research Journal Vol. 24, No. 3 ( 2020-10-12), p. 345-355
    Details
    In: Earth Sciences Research Journal, Universidad Nacional de Colombia, Vol. 24, No. 3 ( 2020-10-12), p. 345-355
    Kurzfassung: Because the high-precision calibration results of the petroleum underground layer are of great significance for oil production efficiency, research on the calibration method of the petroleum underground layer based on high precision gravity and magnetic exploration is researched. The gravity magnetic model is used to retrieve the bedrock depth, and the results of the basement structure and sedimentary rock distribution of the gravity and magnetic geology in the petroleum underground horizon of the Tongbai basin are obtained. On this basis, the geological data, logging data, seismic data, and VSP data are comprehensively used, and the layered calibration method is used to calibrate the petroleum underground layer of the Tongbai basin. Considering the seismic datum and the core elevation in the area, the rock formation is divided by various logging curves. The average time difference and density of the divided rock layers are interpolated at equal depth intervals to obtain velocity sequences and density sequences at equal time intervals and finally realize time-depth conversion. When the drilling geological horizon is unified, the synthetic record of the seismic reflection layer is compared with the geological horizon to realize the horizon calibration of the seismic reflection layer. When the local stratification is not uniform, the seismic reflection layer is calibrated by tracking the seismic reflection layer, high-precision velocity analysis, and various synthetic records to verify the reliability of the geological horizon. The results show that the proposed method can accurately survey the geological conditions of the Tongbai basin. It detected 14 basement faults, and the NW-trending and NE-trending faults controlled the basin, while the north-south faults controlled the later evolution of the basin. The method can be used for the horizon calibration of inclined wells, which is suitable not only for anisotropic media but also for formations with a less lateral variation of local formation lithology. Moreover, its usage is flexible, and it can be corrected by multiple speed data.
    Materialart: Online-Ressource
    ISSN: 2339-3459 , 1794-6190
    URL: Article
    DOI: 10.15446/esrj.v24n3.90315
    Sprache: Unbekannt
    Verlag: Universidad Nacional de Colombia
    Publikationsdatum: 2020
    ZDB Id: 2233404-X
    SSG: 7,36
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 2
    Online-Ressource
    Online-Ressource
    Study of distribution of remaining oil in West Block of the Third District in North Saertu
    Universidad Nacional de Colombia ; 2016
    In:  Earth Sciences Research Journal Vol. 20, No. 2 ( 2016-07-01), p. 1-
    Details
    In: Earth Sciences Research Journal, Universidad Nacional de Colombia, Vol. 20, No. 2 ( 2016-07-01), p. 1-
    Kurzfassung: Identifying remaining oil distribution is an essential study at the Third District in North Saertu of the West Block in Daqing Oilfield. This field is known as a flooding fine potential tapping demonstration zone, characterized by a long-developing history and complex well history. Based on tectonic features and sedimentary characteristics of the study area, the methods of facies controlled reservoir 3D geological modeling and numerical simulation are used in the process of establishing the geological 3D static model. In this paper, we summarized the causes and distribution law of remaining oil in the study area by using the method of fine reservoir numerical simulation to provide a reliable basis for the development and adjustment of the oil field. In combination with fine exploration such as water drive fracturing, water plugging, reperforating and injection-production segment, the recoverable reserves recovery rate could be effectively increased. Estudio de la distribución del remanente de petróleo en el bloque oriental del tercer distrito, en el norte de Sartu, China ResumenLa identificación de la distribución del remanente de petróleo es un estudio esencial en el tercer distrito del norte de Sartu, que corresponde al bloque occidental del campo petrolífero de Daqing. Este campo es conocido como una zona ejemplar para aprovechar el potencial de explotación por inundación y que se caracteriza por una historia compleja y de largo desarrollo de sus pozos. Con base a las características tectónicas y sedimentarias del área de estudio se utlilizaron los métodos de modelado geológico 3D en depósitos con facies controladas y la simulación numérica en el proceso de establecer el modelo geológico 3D estático. En este artículo se establecen las causas y la ley distributiva del remanente de petróleo en el área de estudio a través del método de simulación numérica de depósitos de alta resolución que provea una base fiable para el desarrollo y ajuste del campo petrolero. Con la combinación de métodos de exploración como la fractura dirigida con agua, taponamiento acuático, reperforación y segmentos de inyección-producción, el índice de recuperación de reservas podría incrementar efectivamente.
    Materialart: Online-Ressource
    ISSN: 2339-3459 , 1794-6190
    URL: Article
    DOI: 10.15446/esrj.v20n2.55167
    Sprache: Unbekannt
    Verlag: Universidad Nacional de Colombia
    Publikationsdatum: 2016
    ZDB Id: 2233404-X
    SSG: 7,36
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 3
    Online-Ressource
    Online-Ressource
    Characteristics and Numerical Runout Modeling Analysis of the Xinmo Landslide in Sichuan, China
    Universidad Nacional de Colombia ; 2020
    In:  Earth Sciences Research Journal Vol. 24, No. 2 ( 2020-04-01), p. 169-181
    Details
    In: Earth Sciences Research Journal, Universidad Nacional de Colombia, Vol. 24, No. 2 ( 2020-04-01), p. 169-181
    Kurzfassung: A catastrophic landslide hit Mount Fugui, Diexi Township, Mao County, Sichuan Province at 05:38:58 on June 24, 2017. This landslide buried Xinmo village, caused 83 deaths and resulted in enormous loss to people’s lives and properties. The Xinmo landslide was an earthquake-induced shattered mountain formed in the epicenter zone of the 1933 Ms7.5 Diexi earthquake (with an intensity of level X) and the strong motion zone of the Ms8.0 Wenchuan earthquake (with an intensity of level IX).The landslide mass cut out and slid from a high position, loaded continuously and accumulated at the top of the slope body. Subsequently, the landslide mass was transformed into avalanche debris, which clogged Songpinggou and thus formed a landslide dam, indicating a typical chain disaster of avalanche debris triggered by a ridge-top landslide. The total volume, elevation difference and horizontal distance of the landslide were 1637.6×104m3, 1200 m and 2800m, respectively. The authors of this study identified the disaster-formation mechanism of the Xinmo Landslide based on a field geological survey, remote sensing satellites and the other means. The authors analyzed the disaster characteristics of the landslide source zone, avalanche debris zone and accumulation zone, numerically simulated and comparatively studied the whole process of the Xinmo Landslide movement using DAN-W, i.e., dynamic landslide software, and multiple groups of rheological models. The research findings indicated that the friction model was able to favorably simulate the movement characteristics of various phases of the Xinmo Landslide; this landslide lasted approximately 120 s and had a maximum velocity of movement of 74 m/s. As a result, the friction model and its parameters can be used in similar studies on dynamic disaster effects of ridge-top rock landslides.
    Materialart: Online-Ressource
    ISSN: 2339-3459 , 1794-6190
    URL: Article
    DOI: 10.15446/esrj.v24n2.78990
    Sprache: Unbekannt
    Verlag: Universidad Nacional de Colombia
    Publikationsdatum: 2020
    ZDB Id: 2233404-X
    SSG: 7,36
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 4
    Online-Ressource
    Online-Ressource
    Effect of drip irrigation with saline water on the construction of shelterbelts for soil and groundwater protection in the hinterland of the Taklimakan Desert, China
    Instituto Mexicano de Tecnologia del Agua ; 2017
    In:  Tecnología y ciencias del agua Vol. 08, No. 2 ( 2017-06-09), p. 19-30
    Details
    In: Tecnología y ciencias del agua, Instituto Mexicano de Tecnologia del Agua, Vol. 08, No. 2 ( 2017-06-09), p. 19-30
    Materialart: Online-Ressource
    ISSN: 2007-2422
    URL: Issue
    URL: Journal
    URL: Article
    DOI: 10.24850/j-tyca-2017-v8-n2
    DOI: 10.24850/j-tyca-imta
    DOI: 10.24850/j-tyca-2017-02-02
    Sprache: Unbekannt
    Verlag: Instituto Mexicano de Tecnologia del Agua
    Publikationsdatum: 2017
    ZDB Id: 2931357-0
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
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