Vertical Seismic Profiling | SpringerLink
Vertical seismic profiling (commonly abbreviated to the name VSP) is a major technique in geophysical exploration, which involves measuring downgoing and …
Vertical Seismic Profiling | OptaSense
OptaSense vertical seismic profiling services provide accurate, repeat borehole seismic measurements, without the need for well intervention. ... Highly robust equipment performs insitu for 15-20 years; On-demand 4D time-lapse. Due to cost, 4D VSP acquisition at shorter intervals may not be feasible. However, the OptaSense DAS-VSP service is ...
Advanced Distributed Acoustic Sensing Vertical Seismic Profile …
@article{osti_1854061, title = {Advanced Distributed Acoustic Sensing Vertical Seismic Profile Imaging of an Alaska North Slope Gas Hydrate Field}, author = {Young, Cullen and Shragge, Jeffrey and Schultz, Whitney and Haines, Seth and Oren, Can and Simmons, James and Collett, Timothy S.}, abstractNote = {Gas hydrates are found …
Vertical seismic profiles—more than just a corridor stack
Abstract. Vertical seismic profiles (VSPs) are commonly used as a densely sampled check-shot survey for sonic calibration and velocity information. In addition, VSP data also are traditionally used to provide the ideal seismic trace at the well for correlation with surface seismic. Using VSP data sets in this way not only undervalues the ...
Vertical Seismic Profile (VSP)
When seeking a cost-effective contractor for your VSP project, look no further than Terrex Seismic – the Australian-owned industry leader in seismic data acquisition with a proven track record. Terrex Seismic can integrate with numerous electronic systems. This allows us to work successfully with any downhole logging contractor for quick ...
Noise suppression of distributed acoustic sensing …
For the DAS technology in borehole seismic data acquisi-tion, optical ber can be used not only as a sensor for seismic waves but also as a transmission medium for signals (Daley et al. 2013). Compared with the conventional vertical seis-mic prole (VSP) data acquisition technology using down-hole geophones, DAS has some prominent advantages (Mes-
Surface to Borehole Procedures | US EPA
Figure 4. Comparison of real and synthetic Vertical Seismic Profiles. Survey Sources and Equipment. Selecting a source for a VSP survey is largely a function of what was used in obtaining surface seismic data. For improved matching of VSP and surface seismic data, the same sources are desirable for both surveys.
Borehole Seismic and Beyond | SLB
Managed Pressure Drilling Equipment; Managed Pressure Drilling Services; Pressure Control Equipment; Rig Equipment; Solids Control and Cuttings Management ... This new solution acquires zero …
Elastic full-waveform inversion of vertical seismic profile …
Distributed acoustic sensing (DAS) is a rapidly developing technology particularly useful for the acquisition of vertical seismic profile (VSP) surveys. DAS data are increasingly used for seismic imaging, but not for estimating rock properties. We have developed a workflow for estimating elastic properties of the subsurface using full …
vertical seismic profile | Energy Glossary
vertical seismic profile (VSP) 1. n. [Geophysics] A class of borehole seismic measurements used for correlation with surface seismic data, for obtaining images of higher resolution than surface seismic images and for looking ahead of the drill bit; also called a VSP. Purely defined, VSP refers to measurements made in a vertical wellbore …
Borehole Vertical Seismic Profiling (VSP) | US EPA
Abstract: Vertical seismic profile (VSP) technology have allowed data acquisition with good accuracy of reflectors from 500 to 700 below deepest VSP level in wells in the Burgos Basin (Figure 1); wells as deep as 5400 m with temperatures up to 428°F have been logged successfully. The VSP makes it possible "look ahead" into …
Vertical Seismic Processing | SLB
Many subsurface imaging problems cannot be solved without a 3D survey, and when a survey also needs to be performed in the borehole, the solution is 3D vertical seismic profile (VSP) technology. With increased computer power,3D finite difference modeling is now practical for survey evaluation and design of 3D VSPs.
Vinci Technologies | GEOREC-S
GEOREC-S - Vertical Seismic Profile tool. Print. Contact us. Click to download the datasheet GEOREC-S.pdf. Description. VSP (Vertical Seismic Profile) is the main link …
Vertical Seismic Profile | RadExPro
Vertical Seismic Profile. With the RadExPro software, you can efficiently process zero–offset, far–offset and walk–away 2D VSP data. Data input from SEG-D (inc. Rev.3), SEG-Y, various DAS data formats (Silixa, Fotech, Terra15, Sintela…) Dedicated module for VSP survey geometry calculation and assignment, properly accounting for borehole ...
Evaluating adaptive vertical seismic isolation for equipment …
Abstract. Seismic isolation systems are widely recognized as beneficial for protecting both acceleration- and displacement-sensitive nonstructural systems and components. So-called adaptive isolation systems exhibit nonlinear characteristics that enable engineers to achieve various performance goals at different hazard levels.
Vertical seismic profiles: Now just another log?
The simple st form of vertical seismic profile (VSP) survey. involves determining the seismic travel-time between the. surface and a known depth to calibrate a velocity model. Receivers are placed ...
Vertical seismic profiling: Separation of upgoing and downgoing
One of the essential steps in the processing of a vertical seismic profile is the separation of upgoing and downgoing signals. With this perspective in mind, seismic data recorded in a borehole are modeled in terms of these waves and a mathematically optimal "least‐squares" technique for extracting them is derived. The method imposes practically …
Vertical Seismic Profiles | Fundamentals of Geophysical …
"A vertical seismic profile (VSP) is a measurement in which a seismic signal generated at the surface of the earth is recorded by geophones secured at various depths to the wall of a drilled well" (Hardage, 1983, p. 1). There are, in fact, many types of VSP, and the common bond is the borehole. We will look at the acquisition, processing ...
[Suggestion] Vertical seismic profile, now you can dig …
The graphic - the vertical seismic profile - is just a vertical column of 2x2px-colorcoded squares, 1 square per 1 block, next to a ruler (y-axis). Dark colors = solid blocks (stone, dirt), less dark colors = soft solid blocks (gravel, sand), light colors = low-speed liquids (lava), lighter colors = other liquids (water, oil), none = empty ...
Vertical Seismic Profiling | SpringerLink
Introduction. Vertical seismic profiling (commonly abbreviated to the name VSP) is a major technique in geophysical exploration, which involves measuring downgoing and upgoing seismic wavefields through a stratigraphic sequence. Shortly after the first attempts of developing surface reflection seismology, where both sources and receivers …
Vertical Seismic Profile (VSP LOG)
Vertical Seismic Profile (VSP LOG) Vertical Seismic Profile is applied in Dip Evaluation, determining physical properties of rocks, structure delineation, correlation with logs and existing seismic lines, images of the VSP, predicting depths to seismic reflectors, providing more accuracy velocity and Identification of seismic reflectors.
A guide to current uses of vertical seismic profiles
Tools. Vertical seismic profiles (VSPs) are small‐scale seismic surveys in which geophones are lowered into a well to record waves traveling both down into the earth (direct waves from the surface source and downgoing multiples) and back toward the surface (primary reflections and upgoing multiples). VSPs thus contain information about the ...
A guide to current uses of vertical seismic profiles
Vertical seismic profiles (VSPs) are small‐scale seismic surveys in which geophones are lowered into a well to record waves traveling both down into the earth (direct waves from …
The use of vertical seismic profiles in seismic
During the past 8 years, the U.S. Geological Survey has conducted an extensive investigation on the use of vertical seismic profiles (VSP) in a variety of seismic exploration applications. Seismic sources used were surface air guns, vibrators, explosives, marine air guns, and downhole air guns. Source offsets have ranged from 100 to 7800 …
23. Vertical Seismic Profiles | Fundamentals of Geophysical …
"A vertical seismic profile (VSP) is a measurement in which a seismic signal generated at the surface of the earth is recorded by geophones secured at various depths to the wall …
(PDF) VSP: An In-Depth Seismic Understanding
Vertical seismic profiles combine active seismic sources on the surface with seismic receivers lowered in a borehole, within the reservoir (Hardage, 2000). ... coal users, and coal equipment ...
Crosscorrelogram migration of inverse vertical seismic profile …
We present the theory of crosscorrelogram migration of ghost reflections, also known as interferometric imaging, to delineate reflector geometries from inverse vertical seismic profile data. The theory includes the equations for forward modeling, migration, asymptotic inversion, and model resolution of crosscorrelgrams. Rather than using primary …
Q estimation from vertical seismic profile data and …
Four different methods of estimating Q from vertical seismic profile (VSP) data based on measurements of spectral ratios, pulse amplitude, pulse width, and zeroth lag autocorrelation of the attenuated impulse are described. The last procedure is referred to as the pulse‐power method. Practical problems concerning nonlinearity in the estimating …
6. Vertical Seismic Profiles
Home Courses Introduction to Reflection Seismics Subjects 6. Vertical Seismic Profiles. In this final lecture that last chapter of the reader, about the so-called Vertical Seismic Profile (VSP), is discussed. In VSP's we know both depth and time, so the velocity is much better known that from surface seismics. 6. Vertical Seismic Profiles. 6.
The use of vertical seismic profiles in seismic investigations …
During the past 8 years, the U.S. Geological Survey has conducted an extensive investigation on the use of vertical seismic profiles (VSP) in a variety of seismic exploration applications. Seismic sources used were surface air guns, vibrators, explosives, marine air guns, and downhole air guns. Source offsets have ranged from 100 to 7800 ft.