TVDAHD
| 08:37 May 26, 2010 |
| English language (monolingual) [PRO] Tech/Engineering - Petroleum Eng/Sci | ||||
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| SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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| 4 | True Vertical Depth, Australian Height Datum |
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| 4 | Along hole depth |
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| 3 | True Vertical Depth Along Whole Depth |
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Answers
17 mins confidence: 
| tvdahd True Vertical Depth Along Whole Depth Explanation: Path: common expressions of path are measured depth (MD) - elsewhere often known as along hole depth (AHD) - and true vertical depth (TVD). Note that using TV for true vertical depth is not consistent with the use of MD for measured depth, hence the recommended TVD. http://www.worldlingo.com/ma/enwiki/en/Depth_in_a_well |
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17 mins confidence:
| tvdahd True Vertical Depth, Australian Height Datum Explanation: The Australian Height Datum is a geodetic datum for altitude measurement in Australia. According to Geoscience Australia, "In 1971 the mean sea ... en.wikipedia.org/wiki/Australian_Height_Datum -------------------------------------------------- Note added at 19 mins (2010-05-26 08:57:34 GMT) -------------------------------------------------- The Australian Height Datum is a geodetic datum for altitude measurement in Australia. According to Geoscience Australia, "In 1971 the mean sea level for 1966-1968 was assigned the value of zero on the Australian Height Datum at thirty tide gauges around the coast of the Australian continent. The resulting datum surface, with minor modifications in two metropolitan areas, has been termed the Australian Height Datum (AHD) and was adopted by the National Mapping Council as the datum to which all vertical control for mapping (and other surveying functions) is to be referred." |
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17 mins confidence:
| tvdahd Along hole depth Explanation: "common expressions of path are measured depth (MD) - elsewhere often known as along hole depth (AHD) - and true vertical depth (TVD)." http://www.worldlingo.com/ma/enwiki/en/Depth_in_a_well -------------------------------------------------- Note added at 21 mins (2010-05-26 08:58:48 GMT) -------------------------------------------------- " The well was drilled to 9082 m/29796 ft measured depth and has an Along Hole Depth (AHD) reach of 7593 m/24911 ft, " http://www.onepetro.org/mslib/servlet/onepetropreview?id=SPE... "along hole depth (AHD) - the distance along the path of the wellbore from a measured depth datum (e.g., the drilling rig floor) to a point in the well". http://www.oilfielddirectory.com/glossary/a.htm "The well track information is held with the depth as the z unit and along hole depth (AHD) as the measure. " http://proceedings.esri.com/library/userconf/proc03/p1104.pd... |
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