Economic Characteristics of Deepwater Natural Gas Hydrate

  title={Economic Characteristics of Deepwater Natural Gas Hydrate},
  author={Michael D. Max and Arthur H. Johnson},
  journal={Exploration and Production of Oceanic Natural Gas Hydrate},
Natural gas hydrate (NGH) is unique among gas resources. In its natural state NGH is a pure, solid crystalline material formed by digenetic crystallization in permafrost regions and in marine sediments where temperature, pressure, and gas flux are suitable. NGH compresses methane and minor other gases by about 164 times (above 1 atm @ STP) within the crystal structure. Greater than 95 % of the NGH resource is found sediments below seafloors that are deeper than 500 m in the open ocean… 
1 Citations

An Investigation of Hydraulic-Fracturing Applied to Marine Gas Hydrate Reservoirs

Engineers have been struggling to harvest natural gas from the marine hydrates through drilling wells in the past two decades. The harvesting process has not been successful due to engineering



Hydrate petroleum system approach to natural gas hydrate exploration

Natural gas hydrate (NGH) is a solid crystalline material composed of water and natural gas (primarily methane) that is stable under conditions of moderately high pressure and moderately low

The Global Occurrence of Natural Gas Hydrate

Natural gas hydrate occurs worldwide in oceanic sediment of continental and insular slopes and rises of active and passive margins, in deep-water sediment of inland lakes and seas, and in polar

Gas Hydrate Formation in the Deep Sea: In Situ Experiments with Controlled Release of Methane, Natural Gas, and Carbon Dioxide

We have utilized a remotely operated vehicle (ROV) to initiate a program of research into gas hydrate formation in the deep sea by controlled release of hydrocarbon gases and liquid CO2 into natural

History and significance of gas sampling during DSDP and ODP drilling associated with gas hydrates

Gas hydrate formation requires adequate concentrations of gas (usually methane) to be present in the sediments. Thus, methane-bearing gas hydrate occurrence is closely coupled with the distribution

Stability of Thermogenic Gas Hydrate in the Gulf of Mexico: Constraints on Models of Climate Change

Thermogenic (structure II) gas hydrate is abundant on the Gulf of Mexico continental slope because hydrocarbon gases from a deep, hot subsurface petroleum system vent prolifically to the sea floor in

Direct measurement of in situ methane quantities in a large gas-hydrate reservoir

Certain gases can combine with water to form solids—gas hydrates—that are stable at high pressures and low temperatures1,2. Conditions appropriate for gas-hydrate formation exist in many marine

Critically pressured free-gas reservoirs below gas-hydrate provinces

It is estimated that the global free-gas reservoir may contain from one-sixth to two-thirds of the total methane trapped in hydrate, and it is calculated that a 5 °C temperature increase at the sea floor could result in a release of ∼2,000 Gt of methane from the free- gas zone, offering a mechanism for rapid methane release during global warming events.