Tight Gas Reservoirs Module Overview
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Questions and Answers

What does the term 'Basin Centre Gas Accumulations' refer to in the context of tight gas reservoirs?

  • Gas accumulations in deep basin centres, including shale-gas or tight gas accumulations (correct)
  • Gas accumulations with permeability greater than 0.1mD
  • Gas accumulations located on the slope or shelf of a basin
  • Gas accumulations found only in shale formations within deep basins

What distinguishes tight gas reservoirs considered as Basin Centre Gas Accumulations from those seen as an extension of Conventional reservoirs?

  • Conventional reservoirs contain more permeable rocks compared to Basin Centre Gas Accumulations
  • In Basin Centre Gas Accumulations, tight gas is always found in shale formations, whereas in the latter it can be present in any compacted deposit
  • Tight gas reservoirs in Conventional reservoirs are considered less economically viable
  • Tight gas reservoirs in Basin Centre Gas Accumulations can exist throughout deep basin centres, while in the latter they are found in various types of deposits (correct)

What is the typical permeability of rocks in tight gas reservoirs according to the text?

  • Around 0.5mD
  • Exactly 0.1mD
  • Less than 0.1mD (correct)
  • Greater than 1mD

Why is it mentioned that the exploration strategies for Basin Centre Gas Accumulations and Conventional reservoirs differ?

<p>Due to the different geological settings of these two types of gas accumulations (B)</p> Signup and view all the answers

What common aspects are highlighted between the two models of tight gas reservoirs discussed in the module?

<p>Detailed evaluation of source rock, pressure regime, depositional stacking patterns, and reservoir properties (C)</p> Signup and view all the answers

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