What is VSP in oil industry?
What is VSP in oil industry?
Abbreviation for offset vertical seismic profile, a type of vertical seismic profile in which the source is located at an offset from the drilling rig during acquisition. This allows imaging to some distance away from the wellbore. See: acquisition, source, vertical seismic profile. Diagram of VSP configurations.
How is seismic profiling used?
Vertical Seismic Profiling: Vertical Seismic Profile (VSP) is a technique of seismic measurements used for high resolution seismic imaging. It can also be used for correlation with surface seismic data providing velocity information and information for processing such as deconvolution parameters.
What is seismic Checkshot?
A type of borehole seismic data designed to measure the seismic traveltime from the surface to a known depth. The data can then be correlated to surface seismic data by correcting the sonic log and generating a synthetic seismogram to confirm or modify seismic interpretations.
What VSP means?
VSP’S History. In 1955, a small group of optometrists had a vision to provide access to affordable, high-quality eye care to the world. They formed the first prepaid, not-for-profit vision benefit company, California Vision Services, the precursor to Vision Service Plan (VSP).
What do you mean by seismic?
1 : of, subject to, or caused by an earthquake also : of or relating to an earth vibration caused by something else (such as an explosion or the impact of a meteorite) 2 : of or relating to a vibration on a celestial body (such as the moon) comparable to a seismic event on earth.
How does a vertical seismic profile ( VSP ) work?
In the most common type of VSP, Hydrophones, or more often geophones or accelerometers, in the borehole record reflected seismic energy originating from a seismic source at the surface. There are numerous methods for acquiring a vertical seismic profile (VSP).
What do you need to know about vertical channel VSP?
Vertical channel VSP data from six offsets of a survey in the Pikes Peak heavy oilfield, Saskatchewan. Once we have acquired our borehole seismic data, we need to extract the properties of interest from it as well as make some kind of image. The most basic information that we will want from the VSP is a seismic time-to-depth relationship.
Which is the defining characteristic of a VSP?
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. In the most common type of VSP, Hydrophones, or more often geophones or accelerometers, in the borehole record reflected seismic energy originating from a seismic source at the surface.
Is the VSP in two way time on the vertical axis?
The VSP however, is also in two-way time on the vertical axis. This allows a direct correlation of surface seismic data as well as synthetic data to the well logs in depth. Because this particular VSP used an offset source, we have created an offset image – both for P waves and converted (PS) waves.