Item talk:Q271102
From geokb
{
"USGS Publications Warehouse": {
"@context": "https://schema.org",
"@type": "Article",
"additionalType": "Journal Article",
"name": "India National Gas Hydrate Program Expedition-02: Operational and technical summary",
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"value": "10.1016/j.marpetgeo.2018.11.021",
"url": "https://doi.org/10.1016/j.marpetgeo.2018.11.021"
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"journal": {
"@type": "Periodical",
"name": "Journal of Marine and Petroleum Geology",
"volumeNumber": "108",
"issueNumber": null
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"inLanguage": "en",
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"datePublished": "2019",
"dateModified": "2019-11-22",
"abstract": "The India National Gas Hydrate Program is being steered by the government of India's Ministry of Petroleum and Natural Gas (MoPNG) with participation of Directorate General of Hydrocarbons (DGH), Oil and Natural Gas Corporation Limited (ONGC), and the National Oil Companies and Research Institutes of India. The India National Gas Hydrate Program Expedition 01 (NGHP-01) established the presence of gas hydrate in the Krishna Godavari (KG) and Mahanadi Basins and in the offshore area of the Andaman Sea Basin. However, the gas hydrates discovered during NGHP-01 were mainly distributed as fracture-filling material in fine-grained clay-rich sediments. The India National Gas Hydrate Program Expedition 02 (NGHP-02) was carried out with an objective to discover gas hydrate in sand-rich sediment along the eastern offshore margin of India. ONGC planned and executed NGHP-02 on the behalf of the MoPNG.\n\nNGHP-02 started on March 3, 2015 and was completed on July 28, 2015 (total 147 days) using the Japanese scientific Drilling Vessel Chikyu (D/V Chikyu). During NGHP-02, 42 holes at 25 sites were drilled, cored, and/or surveyed with downhole logging tools. These sites were located in four areas along the eastern margin of India and formally named Area A (Mahanadi Basin, three sites), Area B (northern part of the KG-Basin, twelve sites), Area C (central part of the KG-Basin, six sites), and Area E (southern part to the KG-Basin, four sites). All 25 sites established during NGHP-02 were first drilled and logged with logging-while-drilling (LWD) tools and an additional 17 holes were then drilled and/or cored with conventional coring tools (HPCS/ESCS) or pressure coring tools (PCTB). Wireline logging was conducted in 10 holes and formation tests using a dual packer Modular Formation Dynamics Tester (MDT) tool were carried out in two holes.\n\nThe onboard science team used the laboratory facilities on the D/V Chikyu to examine and analyse the physical properties, geochemistry, and sedimentology of all the cores collected during the expedition. Core samples were also analysed in additional post-expedition shore-based studies conducted in numerous domestic and international gas hydrate research laboratories. The NGHP-02 sediment cores were archived at the National Gas Hydrate Core Repository in Mumbai (India), which is associated with the ONGC Gas Hydrate Research and Technology Centre (GHRTC). The necessary data for characterizing the occurrence of gas hydrate, such as interstitial water chlorinities, core-derived gas chemistry, physical and sedimentological properties, thermal images of the recovered cores, pressure core and downhole measured logging data (LWD and/or conventional wireline log data), were obtained from most of the drill sites established during NGHP-02. Almost all the drill sites yielded evidence for the occurrence of gas hydrate; however, the inferred in situ concentration of gas hydrate varied substantially from site to site. For the most part, the interpretation of downhole logging data, core thermal images, interstitial water analyses, and pressure core images from the sites established during NGHP-02 indicate that the occurrence of concentrated gas hydrate is mostly associated with coarser grained (sand-rich) sediments. This paper presents the operational and technical summary of NGHP-02.\n\nNGHP-02 started on March 3, 2015 and was completed on July 28, 2015 (total 147 days) using the Japanese scientific Drilling Vessel Chikyu (D/V Chikyu). During NGHP-02, 42 holes at 25 sites were drilled, cored, and/or surveyed with downhole logging tools. These sites were located in four areas along the eastern margin of India and formally named Area A (Mahanadi Basin, three sites), Area B (northern part of the KG-Basin, twelve sites), Area C (central part of the KG-Basin, six sites), and Area E (southern part to the KG-Basin, four sites). All 25 sites established during NGHP-02 were first drilled and logged with logging-while-drilling (LWD) to",
"description": "36 p.",
"publisher": {
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"name": "Elsevier"
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"author": [
{
"@type": "Person",
"name": "Collett, Timothy S. tcollett@usgs.gov",
"givenName": "Timothy S.",
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"email": "tcollett@usgs.gov",
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"@type": "Organization",
"name": "Central Mineral and Environmental Resources Science Center",
"url": "https://www.usgs.gov/centers/gggsc"
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{
"@type": "Organization",
"name": "Energy Resources Program",
"url": "https://www.usgs.gov/programs/energy-resources-program"
},
{
"@type": "Organization",
"name": "Woods Hole Coastal and Marine Science Center",
"url": "https://www.usgs.gov/centers/woods-hole-coastal-and-marine-science-center"
},
{
"@type": "Organization",
"name": "Central Energy Resources Science Center",
"url": "https://www.usgs.gov/centers/central-energy-resources-science-center"
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]
},
{
"@type": "Person",
"name": "Pushpendra Kumar",
"familyName": "Pushpendra Kumar",
"affiliation": [
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"name": "Oil and Natural Gas Corporation, Panvel, Navi Mumbai, India"
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{
"@type": "Person",
"name": "K. M. Shukla",
"familyName": "K. M. Shukla",
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},
{
"@type": "Person",
"name": "U. S. Yadav",
"familyName": "U. S. Yadav",
"affiliation": [
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"name": "Oil and Natural Gas Corporation Ltd."
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]
},
{
"@type": "Person",
"name": "M. V. Lall",
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},
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"@type": "Person",
"name": "Krishna Vishwanath",
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"name": "Directorate General of Hydrocarbons"
}
]
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"name": "Central Energy Resources Science Center",
"url": "https://www.usgs.gov/centers/central-energy-resources-science-center"
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