46. What would be an optimal drilling location for production of oil from the Ea

Question

46. What would be an optimal drilling location for production of oil from the East Texas a. Drill at a location below the oil-water contact b. Drill at a location where the Eagle Ford Shale is deep enough to produce oil c. Drill at a location near where the dipping reservoir rock is shallowest d. Drill at a location near where the seal rock is fractured e. None of the above Oil Field? 47. Which of the following well logs can be util a. Caliper b. Sonic c. Resistivity d. Gamma ray e. None of the above ized to distinguish a sandstone from a shale? 48. Resistivity well logs can detect hydrocarbons in reservoir pore spaces because: a. b. c. d. e. Hydrocarbons have a higher resistivity than formation waters Hydrocarbons have a lower resistivity than formation waters Resistivity measurements are not impacted by drilling fluids Sandstone oil reservoirs generally have low resistivity None of the above 49. The burial history is important in hydrocarbon exploration because: a. b. c. The source must have entered the oil window during its history Reservoir rocks must be available below the source rock when hydrocarbons are g A structural configuration with a high permeability upper boundary must be availa hydrocarbons migrating from the source to accumulate d. A low permeability conduit must be available for movement of the hydrocarbon source to the trap None of the above e. 50. What are well cuttings? a. b. c. d. e. Cylinders of rock extracted ahead of drill bit location Small samples extracted from the wellbore wall with side core tools Rock fragments produced as the drill bit advances Geologic samples of rock adjacent to a well location None of the above

Explanation / Answer

46: d Seal rock fracture indicates presence of oil

47: d Radioactive methods are most useful here

48: a

49: b

50: c

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