Natural Gas I

What is the main component of natural gas?

• Propane

• Butane

• Methane

• Ethane

Select the correct properties of liquefied natural gas (LNG).

• Colorless

• Non toxic

• Odorous

• Corrosive

In the oil wells, X forms the topmost layer, followed by Y and finally Z. X, Y and Z respectively are:

• Natural gas, oil and water

• Natural gas, water and oil

• Petroleum gas, oil and natural gas

• Petroleum gas, oil and water

Natural gas is mixed with chemicals to...

• Preserve it

• Detect it incase any leakage

• Clean it

• Hydrate it

Which geophysical method is commonly used to detect subsurface formation?

• Seismic survey

• Hydraulic fracturing

• Piping

• Drilling

Appraisal phase is focused on?

• Identify regions of interest by evaluating technical, political, economic, social, and environmental factors

• Extraction of oil from a well by drilling and extraction

• Process of plugging off and abandoning well

• Evaluating the potential of a hydrocarbon discovery and selecting the most advantageous development choices

Why is site selection crucial in the planning of an offshore oil drilling project?

• To ensure the project's proximity to urban areas

• To minimize the cost of drilling operations

• To evaluate the geological potential and environmental conditions for drilling

• To choose a site with the best weather conditions

Which of the following sequence is the correct arrangements of casing in well drilling operation?

• Surface casing, production casing, intermediate casing, liner string and conductor casing

• Conductor casing, surface casing, intermediate casing, production casing and liner string

• Surface casing, intermediate casing, liner string , conductor casing and production casing

• Conductor casing, surface casing, intermediate casing, liner string and production casing.

What is the function of lifting equipment in natural gas well?

• To lift the gas tubing during production process

• To help lift natural gas or crude oil out of a formation

• To lift excess sand and gravel in the well

• To pump in drilling fluid into the well

What is the function of pigging operation?

• Prevent the plant from being hit by large slugs of liquid

• Prevent the plant from being hit by large clogging of hydrates

• Prevent formation of hydrates by absorbing water

• Prevent the plant leakage of H2S into the plant