Integrated prestack depth migration of vsp and surface seismic data in order to test the new, integrated prestack depth migration algorithm, a numerical model was developed based on the interpretation of. Vista desktop seismic data processing software provides data processing from earlystage acquisition qc to final processing and interpretation of 2d and 3d seismic data acquired on land or offshore or as a vertical seismic profile vsp, in all industry and manufacturer data formats. Vista is a leading software package for qc and complete processing of 2d3d seismic data acquired on land, offshore, or through vsp. Acquisition considerations, the authors describe how vsp surveys differ from other borehole and surface seismic methods and define the geometries and nomenclatures used throughout the book. Vertical seismic profile an overview sciencedirect topics. The vsp was used to identify phase and time differences between.
The major difference between a vsp and a checkshot survey is that vsp data are recorded at much smaller spatial sampling intervals than checkshots. Seismic data can be improved after final processing by applying simple techniques. Work with 2d, 3d, 4d, multicomponent or full azimuth from land, marine, seabed or borehole. A vertical seismic profile vsp stanford exploration project. Vista desktop seismic data processing software provides data processing from earlystage acquisition qc to final processing and interpretation of 2d and 3d seismic data acquired on land or offshore or as. Checkshots and vertical seismic profiles aapg wiki. Seisspace promax software makes it easy to remove noise in both new and old surveys.
Vertical seismic profiling has been a useful measurement to obtain rock properties velocity, impedance, attenuation, anisotropy in depth as well as to provide a seismic image of the subsurface. The principle step in seismic data processing is the velocity analysis which related to normal moveout correction. Reflection seismology, more commonly referred to as seismic reflection or abbreviated to seismic within the hydrocarbon industry, is used by petroleum geologists and geophysicists to map and interpret potential petroleum reservoirs. Our vsp processing is conducted using qborseis borehole seismic processing, a fully integrated suite of applications in the omega geophysical data processing platform. Fundamentals of borehole seismic technology schlumberger. Integrated interpretive processing vsp interpretive. In addition, the data set can commonly be further improved by. With more than 75 color illustrations, this book demonstrates the utility of vsp. Vsp data also can be used to remove multiples from surface seismic data by providing parameters for an earth filter inversion process known as signature deconvolution. A vertical seismic profile vsp is recorded in essentially the same way as a checkshot survey. Intended for field geophysicists, this third and revised edition focuses on newer equipment.
For each case study, the authors discuss the geology and interpretation of the existing seismic coverage prior to the drilling of the vsp well, the well results and rationale behind recording the vsp. Borehole seismic data processing and interpretation. The emphasis will be on unique aspects of vector wavefields, anisotropy, and the important relationships that unify swaves and pwaves. A single nearoffset, oversea ice vertical seismic profile vsp was collected in the and2a drill hole as a part of the logging program. A discussion of survey design and modeling is also provided. Vsps include the zerooffset vsp, offset vsp, walkaway vsp, walkabove vsp, saltproximity vsp, shearwave vsp, and drillnoise or seismicwhiledrilling vsp. Advantages and disadvantages of surface and downhole.
The vertical profiles through the 3d vsp volume exhibited higher resolution and so detailed and focussed reflections, especially at the target level. Vsp data in comparison to toher borehole seismic data, by. The technique allows geophysicists to infer critical information that cannot be. Radexpro is a seismic processing software on windows. Offset vsp modelling for two source locations using a 3d model right. First developed in 1985 as the markets first pcbased seismic data. This paper emphasizes the fundamentals of the vertical seismic profile vsp that improve the interpreters confidence and understanding in its use as an exploration tool. New multilevel receivers and hydrophone strings have improved the acquisition efficiency of the survey. Dsisoft, on the other hand, is a specialized package for vsp processing. The areas covered are vsp acquisition, critical points of the processing sequence, and applications to borehole information in depth and cdp data in time. Intended for field geophysicists, this third and revised edition focuses on newer equipment developments, field techniques, data processing and expanded examples of vsp use in exploration and development. Vertical seismic profile vsp surveying is a vital tool in subsurface imaging and reservoir characterization. Francis rollins, qingsong li, tianxia jia, samarjit chakraborty, bp.
Pdf the purpose of this research is to get the batter matching between vsp and seismic data after preforming a simple processing sequence. Weber, azimuthal anisotropy analysis of walkaround vertical seismic profiling vertical seismic profiling. An essential step in vsp processing is the geometry input. Borehole seismic services baker hughes, a ge company.
The vsp has found a number of applications in the oil industry. The raw zerooffset vsp data traces were edited and sorted by receiver depth. In particular, our 3d visualisation software allows the investigation of merged 3d vsp seismic data from any perspective in slices through the x, y and z axes. Vista seismic processing free version download for pc. A vsp is a much more detailed survey than a checkshot survey because the geophones are more closely spaced, typically on the order of 25 m 82 ft, whereas a checkshot survey might. In particular, it discusses 3c, 4c, 6c and 9c vsp, marine and land surveys with near and multiple offsets walkways, azimuths walkarounds or a combination.
Noisy seismic travel time data units of s from equallyspaced every 20 m. It provides information on computer systems, data processing, time series analysis, seismic data processing. Vsp data can be output in segy and displayed in a wide variety of formats and styles to illustrate any stage of the processing route. Processing and interpretation of threecomponent vertical seismic. In vsp survey, seismic waves are emitted using surface sources and recorded with the help of.
The defining characteristic of a vsp of which there are many types is that either the energy source, or the detectors or sometimes both are in a borehole. It is a development of material given to students on the msc course in petroleum geology at aberdeen university and takes the form of a course manual rather than a systematic textbook. Often involving a good deal of routine housekeeping. The course will give an overview of 3c seismic theory and practical application. The size and scale of seismic surveys has increased alongside the significant increases in computer power. Dedicated module for vsp survey geometry calculation and assignment. A complete range of vsp configurations is processed in house using our vsprowessx software, from conventional rig source surveys through to 3d array and time lapse data. Part of the seismology and exploration geophysics book series mage, volume 1. Willis is a chief scientific advisor in the borehole seismic group at halliburton. Today s land seismic 2d and 3d is a leading and successful technology providing continuous geological models of productive layers. Vsps include the zerooffset vsp, offset vsp, walkaway vsp, walkabove vsp, saltproximity vsp, shearwave vsp, and drillnoise or seismic whiledrilling vsp. Constrained waveform inversion of colocated vsp and surface.
With new processing and parallelization techniques and a suite of interactive full wave 3d noise suppression. The major difference between a vsp and a checkshot survey is that vsp data are recorded at much smaller. Vsp processing software vsprowess ltd vsprowess ltd. Well seismic surveying and acoustic logging edp open. In geophysics, vertical seismic profile vsp is a technique of seismic measurements used for correlation with surface seismic data.
A petroleum geologists guide to seismic reflection. Improving surface seismic resolution using vsp data 2 well has encountered pay sands within vadaparru shale. With more than 75 color illustrations, this book demonstrates the utility of vsp processing and interpretation. Some vertical planes cutting through the 3d vsp time volume may be seen in fig. Dedicated module for vsp survey geometry calculation and assignment, properly accounting for borehole deviations. Use the latest seismic processing software to prepare the data for interpretation. In particular, our 3d visualisation software allows the investigation of. Integrated prestack depth migration of vsp and surface. The accurate velocity information from the vsp helps make the velocity analysis involved in processing and stacking surface seismic data more precise. Vertical seismic profiling vsp survey is a vital tool in subsurface imaging and reservoir characterization. Reflection seismology, more commonly referred to as seismic reflection or abbreviated to seismic within the hydrocarbon industry, is used by petroleum geologists and geophysicists to map and.
In vsp survey, seismic waves are emitted using surface sources and recorded with the help of receivers clamped to the wall of the borehole. A comprehensive reference on vsp is the book by hardage. Processing considerations for 3d vsp cseg recorder. After some trace editing, vsp processing starts with the separation of the downgoing waves from the upcoming waves reflections. The zero or near offset vsp survey these terms tend to be distance from wellhead related and generally used interchangeably, is defined as a vsp survey where the energy source whether a vibroseis truck, airgun array.
Vsp interpretive processing open file publications seg library. The look ahead vsp survey is not much more than special data processing treatment of the standard zero offset vsp survey. Oct 25, 2019 radexpro is a seismic processing software on windows. Su works well for processing large seismic datasets because compiled codes run faster but it is more difficult to add new modules to the package and especially graphic interface programs. Pdf simple processing sequence to vspseismic data matching. Vsp acquisition geometry and first break picking the vista seismic processing package was employed for analyzing the data. Fundamentals of borehole seismic technology is the second of a series of schlumberger. Integrated welllog, vsp, and surface seismic analysis of. The zero or near offset vsp survey these terms tend to be distance from. Our borehole seismic services offer application design, data processing, and interpretation for detailed reservoir description that improves production and field development.
This requires a thorough understanding of the geology of the area. In his career willis has performed research and development in distributed acoustic sensing vsp technology, fracture identification using seismic data time lapse vsp, microseismics and surface seismic scattering, interferometric imaging, kirchhoff and reverse time depth migration. Mcs survey located at the same site, which shared common source vibration points vps. With vista software, you can easily navigate workflows and. It is well suited for indepth hruhr marine seismic processing, realtime marine 2d3d seismic qc, onboard fast track. Improving surface seismic resolution using vsp data. Geophysicists process the recorded data using a variety of processing tools.
Vertical seismic profile with the radexpro software, you can efficiently process zerooffset, faroffset and walkaway 2d vsp data. This volume was then merged with the seismic volume conclusions the processing of 3d vsp was an enriching experience. However, small gyroscopes often drift from their original. This book catalogues the majority of specialized tools necessary to work with pp, ps and ss data from such vsp surveys at the acquisition design, processing and interpretation stages. The defining characteristic of a vsp of which there are many types is that. The clean and efficient design of our software frees our team of vsp processors to concentrate on. From simple timedepth data to imaging deep into the reservoir, we deliver the link between geophysics and geology.
The examples presented in figure 1 are extracted from 3d seismic data. While a receiver may be moved a vertical distance of 200. This book emphasizes the practical application of seismic data processing methods. The vsp can also give insight into seismic wave propagation and provide processing and interpretive assistance in the analysis of surface seismic data. Lanaway field case study vsp interpretive processing. Society of exploration geophysicists, 3c seismic applications provide enhanced rock. This book provides a practical description of the theory and applications of vertical seismic profiling vsp. He is also coauthor of the seg text book vsp interpretive processing theory and practice and an instructor for the seg continuing education course on vertical seismic profiling. Mvsp is a new matlab tool with a graphical user interface gui for vsp shot modeling, data processing, and interpretation. In addition, the data set can commonly be further improved by applying dip filters and frequency filters. The well seismic is a zero offset vsp recorded from depth level 500m to 2375 m, using instrument dfs v, during the year 2005. Vsp is a well seismic method for which the source and the receiver are considered to be. Dsisofta matlab vsp data processing package sciencedirect. Multicomponent vsp analysis for applied seismic anisotropy.
After processing, the vsp provides a seismic trace without multiples. Since late echoes are weaker than early ones, seismic data is normally scaled. Constrained waveform inversion of colocated vsp and. Integrated welllog, vsp, and surface seismic analysis of nearsurface glacial sediments. Relevant computer hardware and procedures in a seismic data processing laboratory are discussed. It is well suited for indepth hruhr marine seismic processing, realtime marine 2d3d seismic qc, onboard fast track processing, land and marine offline seismic qc, complete processing of nearsurface seismic data reflection, refraction, tomography, masw and vsp processing. Vsp data also can be used to remove multiples from. The sources near the recording well were used to process a zero offset vsp which was used for initial calibration with the well logs and the surface seismic data. It provides information on computer systems, data processing, time series analysis, seismic data processing, migration and inversion theory and practice.
Seismic unix and octave are used to process raw vsp data. The unique aspects of vsp data and borehole seismic geometries are managed through tailored and proprietary algorithms. Vertical seismic profiling and its exploration potential springerlink. Honours physics coop 1982 from the university of victoria, british columbia. This book is written for advanced earth science students, geologists, petroleum engineers and others who want to get quickly up to speed on the interpretation of reflection seismic data. The basic processing results were valuable and provided the link between the highresolution logs and lowfrequency surface seismic. Processing to deliver the accurate and valuable borehole seismic results a few comprehensive vsp processing packages are utilized. Theory and practice, richard dwight kuzmiski, isbn 1560800305, 9781560800309 authors ronald clifford hinds, neil lennart anderson, richard dwight kuzmiski. Advantages and disadvantages of surface and downhole seismic. The clean and efficient design of our software frees our team of vsp processors to concentrate on geophysics and the modular structure enables new capabilities to be easily added to the software as required. This volume was then merged with the seismic volume conclusions the processing of 3d vsp was an enriching experience, though quite labour intensive and time consuming. The technique allows geophysicists to infer critical information that cannot be obtained otherwise. The subject of vsp occupies several books and many research papers.
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