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Tue, 02 Jul 2013 03:38:06 GMT狠狠撸Share feed for 狠狠撸shows by User: LukmanArief2Lukman arief water column effect
/slideshow/lukman-arief-water-column-effect/23774851
lukmanarief-watercolumneffect-130702033806-phpapp01 Sea water parameters, i.e. salinity, temperature and tidal are always
vary in value. Variations in the water column can be divided into two
categories. Firstly, tides, weather, and currents can affect the
elevation of the sea surface. Secondly, changes in salinity and water
temperature can induce variation in water velocity. Variations in the
water column at a three-dimensional survey can induce time shift,
resulting in a lateral discontinuity in crossline section.
This final project is to discuss how far the changes in salinity and
temperature, changes in tidal height and change of both in
simultaneously (the effect of water column) can affect the continuity
of crossline reflection on a acquisition survey. This study is started
from the discovery of high temperature and salinity values of a sea
water to determine water velocity. For the modeling, seismic velocity
and tidal values are simulated randomly to simulate a sailline.
From the result it can be concluded that for the marine
acquisition with a depth of 1000 m, tides up to 12 meters can cause
timeshift by 12 ms. Sea water velocity that varies from 1493 m/s up to
1503 m/s can cause up to 12 ms time shift, while 2 meters in tidal
difference and 3 m/s in velocity variation can be ignored. Effects of
water column consisting of water velocity variations and tidal
variations can cause up to 25 ms time shift. If not corrected, this
large time shift would cause lateral discontinuities in crossline
section.]]>
Sea water parameters, i.e. salinity, temperature and tidal are always
vary in value. Variations in the water column can be divided into two
categories. Firstly, tides, weather, and currents can affect the
elevation of the sea surface. Secondly, changes in salinity and water
temperature can induce variation in water velocity. Variations in the
water column at a three-dimensional survey can induce time shift,
resulting in a lateral discontinuity in crossline section.
This final project is to discuss how far the changes in salinity and
temperature, changes in tidal height and change of both in
simultaneously (the effect of water column) can affect the continuity
of crossline reflection on a acquisition survey. This study is started
from the discovery of high temperature and salinity values of a sea
water to determine water velocity. For the modeling, seismic velocity
and tidal values are simulated randomly to simulate a sailline.
From the result it can be concluded that for the marine
acquisition with a depth of 1000 m, tides up to 12 meters can cause
timeshift by 12 ms. Sea water velocity that varies from 1493 m/s up to
1503 m/s can cause up to 12 ms time shift, while 2 meters in tidal
difference and 3 m/s in velocity variation can be ignored. Effects of
water column consisting of water velocity variations and tidal
variations can cause up to 25 ms time shift. If not corrected, this
large time shift would cause lateral discontinuities in crossline
section.]]>
Tue, 02 Jul 2013 03:38:06 GMT/slideshow/lukman-arief-water-column-effect/23774851LukmanArief2@slideshare.net(LukmanArief2)Lukman arief water column effectLukmanArief2Sea water parameters, i.e. salinity, temperature and tidal are always
vary in value. Variations in the water column can be divided into two
categories. Firstly, tides, weather, and currents can affect the
elevation of the sea surface. Secondly, changes in salinity and water
temperature can induce variation in water velocity. Variations in the
water column at a three-dimensional survey can induce time shift,
resulting in a lateral discontinuity in crossline section.
This final project is to discuss how far the changes in salinity and
temperature, changes in tidal height and change of both in
simultaneously (the effect of water column) can affect the continuity
of crossline reflection on a acquisition survey. This study is started
from the discovery of high temperature and salinity values of a sea
water to determine water velocity. For the modeling, seismic velocity
and tidal values are simulated randomly to simulate a sailline.
From the result it can be concluded that for the marine
acquisition with a depth of 1000 m, tides up to 12 meters can cause
timeshift by 12 ms. Sea water velocity that varies from 1493 m/s up to
1503 m/s can cause up to 12 ms time shift, while 2 meters in tidal
difference and 3 m/s in velocity variation can be ignored. Effects of
water column consisting of water velocity variations and tidal
variations can cause up to 25 ms time shift. If not corrected, this
large time shift would cause lateral discontinuities in crossline
section.<img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/lukmanarief-watercolumneffect-130702033806-phpapp01-thumbnail.jpg?width=120&height=120&fit=bounds" /><br> Sea water parameters, i.e. salinity, temperature and tidal are always
vary in value. Variations in the water column can be divided into two
categories. Firstly, tides, weather, and currents can affect the
elevation of the sea surface. Secondly, changes in salinity and water
temperature can induce variation in water velocity. Variations in the
water column at a three-dimensional survey can induce time shift,
resulting in a lateral discontinuity in crossline section.
This final project is to discuss how far the changes in salinity and
temperature, changes in tidal height and change of both in
simultaneously (the effect of water column) can affect the continuity
of crossline reflection on a acquisition survey. This study is started
from the discovery of high temperature and salinity values of a sea
water to determine water velocity. For the modeling, seismic velocity
and tidal values are simulated randomly to simulate a sailline.
From the result it can be concluded that for the marine
acquisition with a depth of 1000 m, tides up to 12 meters can cause
timeshift by 12 ms. Sea water velocity that varies from 1493 m/s up to
1503 m/s can cause up to 12 ms time shift, while 2 meters in tidal
difference and 3 m/s in velocity variation can be ignored. Effects of
water column consisting of water velocity variations and tidal
variations can cause up to 25 ms time shift. If not corrected, this
large time shift would cause lateral discontinuities in crossline
section.
]]>
7282https://cdn.slidesharecdn.com/ss_thumbnails/laporankerjapraktek-lukmanarief-130622092514-phpapp02-thumbnail.jpg?width=120&height=120&fit=boundspresentationWhitehttp://activitystrea.ms/schema/1.0/posthttp://activitystrea.ms/schema/1.0/posted0https://cdn.slidesharecdn.com/profile-photo-LukmanArief2-48x48.jpg?cb=1720411653id.linkedin.com/in/lukmanariefhttps://cdn.slidesharecdn.com/ss_thumbnails/lukmanarief-watercolumneffect-130702033806-phpapp01-thumbnail.jpg?width=320&height=320&fit=boundsslideshow/lukman-arief-water-column-effect/23774851Lukman arief water c...https://cdn.slidesharecdn.com/ss_thumbnails/laporankerjapraktek-lukmanarief-130622092514-phpapp02-thumbnail.jpg?width=320&height=320&fit=boundsslideshow/laporan-kerja-praktek-lukman-arief/23325958Laporan kerja praktek ...