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The seismic method is a crucial technique in geophysics that plays a significant role in understanding the subsurface structure of the Earth. It is widely employed in various fields such as oil and gas exploration, environmental studies, civil engineering, and geological research. Seismic methods involve the use of artificially generated …
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US2503904A - Seismic prospecting method - Google Patents Seismic prospecting method Download PDF Info Publication number US2503904A ... seismic caliche feet layer Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as …
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Secondly, geological prospecting and exploration, along with exploratory drilling, make these works costly. Furthermore, the estimation of the reserves for such deposits often contains errors. Passive seismic exploration is pro- ... Method section Passive seismic exploration uses low frequencies as seismic sources. This technique makes it ...
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Seismic prospecting methods and apparatus for determining flank dip of subterranean layers Country Status (11) Country Link; US (1) US4346462A (en - :~:text=Arcing in an AC power system is detected,in its amplitude synchronized to the power waveform.) JP (1 ...
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Seismic ahead-prospecting using TBM drilling noise as a source can achieve near-real-time detection, meeting the requirements of TBM rapid drilling. Seismic wavefield retrieval is the key data processing step for the efficient utilization of TBM drilling noise. ... Three-dimensional seismic ahead-prospecting method and application in …
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The seismic prospecting method creates vibrations in the earth in order to learn about the materials in the earth. The vibrations are created by either using dynamite or a vibrator of some kind ...
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ABSTRACT Due to high metal prices and increased difficulties in finding shallower deposits, the exploration for and exploitation of mineral resources is expected to move to greater depths. Consequently, seismic methods will become a more important tool to help unravel structures hosting mineral deposits at great depth for mine planning and exploration. …
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Seismic Prospect S.R.L. is a geophysical prospecting company established in 2016, in the city of Buenos Aires, Argentina. It was created as a consequence of several factors, some of special importance: First in importance, the dramatic changes that the oil industry has been experimenting since mid-2014.
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Accurately realizing this geology helps to guarantee safety during construction using a tunnel boring machine (TBM). The paper proposes a three-dimensional (3D) seismic ahead-prospecting method by optimizing a filtering method and an imaging algorithm. In this paper, a united filtering method based on f – k and τ – p filtering is ...
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11. SEISMIC REFLECTING METHOD Seismic Reflecting Method is a method of prospecting, that uses the principles of seismology to estimate the properties of the Earth's subsurface from reflected seismic waves. The method requires a controlled seismic source of energy Seismic waves generated… dynamite, mechanical impact, …
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Abstract. Seismic prospecting has its basis in the classical physical principles of transmission, reflection, refraction, and scattering of elastic waves in a layered solid half-space. The great increase in application of the methods and the continual effort to improve them since 1925 have resulted in elaboration and refinement of instruments ...
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The seismic ahead-prospecting method, proposed by (Liu et al., 2017), is widely applied both in the drilling-and-blasting tunnel and the TBM tunnel. The method is sensitive to faults, lithological interfaces, and karst …
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Seismic refraction survey method employs seismic energy which bounces back to the surface after traveling through the ground along refracted ray paths (Philip, 2001). Such that the first arrival of seismic energy at a detector source offset from a seismic source always represents either a direct or refracted ray.
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Seismic methods provide high-resolution images of geologic structures hosting mineral deposits and, in a few cases, can be used for direct targeting of mineral deposits. Applications are not limited to only surface seismic surveys, but also include borehole seismic methods such as VSP and crosshole imaging. ... Geophysical Prospecting, …
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US2923366A - Seismic prospecting method - Google Patents Seismic prospecting method Download PDF Info Publication number US2923366A ... seismic transducers impulse array reflections Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and …
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The tunnel seismic ahead prospecting method is usually used to estimate adverse geology ahead of a tunnel face. The observation system plays an important role in tunnel seismic ahead prospecting, which helps to obtain accurate imaging results. Optimizing the observation system is a key issue for seismic ahead prospecting. In …
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Types of Geophysical Methods. Geophysical methods can be broadly categorized into two main groups: non-seismic methods and seismic methods. These methods utilize different physical principles to investigate the subsurface and provide valuable information about the Earth's interior. Here's an overview of each category: …
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In seismic frequency-domain finite-difference modelling, the affine mixed-grid method effectively eliminates the spatial sampling restriction associated with square meshes of the rotated mixed-grid m...
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The seismic ahead-prospecting method is useful to detect anomalous zones in front of the tunnel face. However, most existing seismic detection method is designed for drilling and blasting tunnel. The detection method should be improved to satisfy the rapid tunneling of Tunnel Boring Machines (TBMs). This study focuses on reducing the time spent ...
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Relationship is established between some periods in the history of seismic prospecting and the changes in the understanding of its physical and geological foundations. Particular attention is given to the influence of the technological progress in seismic data processing on the change in the understanding of the structure and composition of a medium. …
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This general method of seismic prospecting permits the determination of valuable geological information particu larly useful, for example, in the exploration for petro leum. One difficulty in using seismic prospecting methods is that of analyzing the seismic records obtained. The records are of such a nature due to the complexity of the
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11. SEISMIC REFLECTING METHOD Seismic Reflecting Method is a method of prospecting, that uses the principles of seismology to estimate the properties of the Earth's subsurface from reflected …
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The seismic prospecting methods are usually sensitive to the elastic properties. Electrical and electromagnetic methods are suitable for the detection of the groundwater. So we should resort to integrated prospecting to describe one geo-body from aspects like elastic, electrical and dielectric feature. ...
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Seismic surveying is the most important of the three main types of geophysical prospecting. To understand this method, a review of the physical principles that govern the movement of acoustic or shock waves through layered media is necessary. Consider …
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The seismic prospecting methods are usually sensitive to the elastic properties. Electrical and electromagnetic methods are suitable for the detection of the groundwater. So we should resort to integrated prospecting to describe one geo-body from aspects like elastic, electrical and dielectric feature. ...
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Forward prospecting to predict the location of high-risk geological zones during tunnel boring machine (TBM) tunneling is important for safe and efficient tunnel construction. Seismic forward-prospecting methods are sensitive to geological structures and have been widely used in areas with relatively well-developed structures, such as …
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Three-dimensional seismic ahead-prospecting method and application in TBM tunneling. Three-Dimensional Seismic Ahead-Prospecting Method and Application in TBM Tunnelling, 143 (2017), p. 04017090. no. 12. Crossref View in Scopus Google Scholar. Liu et al., 2017b. C. Liu, H. Qian, Z. Guo, et al.
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The seismic refraction method is utilized such that the seismograph data obtained help to determine the precise depth to weathered basement and overburden thickness such that the different …
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The seismic refraction method had its beginning in the war of 1914–1918, but it became established as a prospecting method in the 1920's and 30's as a result of successes in the Gulf area of the United States. The success was an outcome of the parallel development of improved instrumentation and improved methods of interpretation.
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