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Brian Tost MS Thesis OhioLink.pdf (1.68 MB)

ETD Abstract Container

Abstract Header

Low porosity mistaken for natural gas hydrate at Alaminos Canyon, Gulf of Mexico: Implications for gas hydrate exploration in marine sediment reservoirs

Tost, Brian Christopher
http://rave.ohiolink.edu/etdc/view?acc_num=osu1366475207

Abstract Details

2013, Master of Science, Ohio State University, Geological Sciences.
Natural gas hydrate are solid-state molecules formed when a gas molecule is enclosed by a host of water molecules at low temperatures and high pressures. Due to the large volume of gas contained by gas hydrate, gas hydrate play a significant role in the global carbon cycle, potentially influencing climate change, and show potential as a future energy source. Due to the physical constraints on hydrate formation, gas hydrate typically occur in permafrost and deep ocean sediments. The Joint Industry Project (JIP) identified the Alaminos Canyon (AC) 21 lease block in the Gulf of Mexico as a potential gas hydrate-containing reservoir. In May 2009, the JIP conducted logging-while-drilling (LWD) measurements in two boreholes in AC 21 to determine its gas hydrate potential. During the LWD measurements, the AC 21 boreholes experienced significant washouts, rendering some of the LWD measurements unreliable. Research published in 2012 concluded that gas hydrate exists in AC 21. However, assumptions used in that research were not representative of physical conditions observed in AC 21. Porosity modeling based on Archie’s Equation and velocity modeling based on the method of Hamilton was conducted on the reliable LWD measurements to determine if gas hydrate exists in AC 21. The porosity and velocity models were validated from the matches between synthetic seismograms and the surface seismic traces. The porosity and velocity modeling completed in this project show that gas hydrate does not exist in AC 21.
Ann Cook (Advisor)
Michael Durand (Committee Member)
Barry Allred (Committee Member)
51 p.
Geology; Geophysical; Geophysics
Gas hydrate; seismic prospecting; marine reservoirs

Recommended Citations

Citations

  • Tost, B. C. (2013). Low porosity mistaken for natural gas hydrate at Alaminos Canyon, Gulf of Mexico: Implications for gas hydrate exploration in marine sediment reservoirs [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366475207

    APA Style (7th edition)

  • Tost, Brian. Low porosity mistaken for natural gas hydrate at Alaminos Canyon, Gulf of Mexico: Implications for gas hydrate exploration in marine sediment reservoirs. 2013. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1366475207.

    MLA Style (8th edition)

  • Tost, Brian. "Low porosity mistaken for natural gas hydrate at Alaminos Canyon, Gulf of Mexico: Implications for gas hydrate exploration in marine sediment reservoirs." Master's thesis, Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366475207

    Chicago Manual of Style (17th edition)

osu1366475207
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© 2013, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.