Reservoir Solutions Test

Which of the following is the primary challenge when using production logging tools in high-pressure, high-temperature wells?

• Difficulty in measuring water cut

• Tool malfunction due to extreme conditions

• Inability to differentiate between multiphase flow components

• Reduced sensitivity of acoustic tools

What is the main advantage of using spinner flowmeters in production logging?

• Measures temperature variations within the wellbore

• Identifies the gas-to-liquid ratio in production fluids

• Detects fluid flow rate and velocity in multiphase systems

• Measures pressure at different depths

Which type of tool is used to differentiate between oil, gas, and water-bearing zones during production logging?

• Acoustic tools

• Flowmeters

• Gamma ray tools

• Pressure gauges

What does a high water cut indicate in production logging?

• A potential increase in oil production

• The well is producing a significant amount of water, suggesting reservoir damage or communication

• A low-pressure condition in the wellbore

• High gas-to-liquid ratio in the production stream

How do acoustic tools in production logging detect flow restrictions?

• By measuring the temperature gradient across the well

• By analyzing the changes in fluid density and viscosity

• By measuring the travel time of acoustic waves through the wellbore fluids

• By detecting the presence of multiphase flow

What does the integration of production logging data into a digital oilfield system allow engineers to do?

• Automatically perform well completions

• Predict future reservoir behavior

• Make real-time decisions based on up-to-date well performance data

• Calculate water cut without physical measurements

Which of the following is a key difference between memory logging and continuous logging?

• Memory logging records data in real-time, while continuous logging does not

• Continuous logging allows for data retrieval after tool retrieval, whereas memory logging cannot

• Memory logging stores data during the logging process, while continuous logging records it throughout the well test

• Continuous logging tools are more expensive than memory logging tools

In production logging, why is it important to analyze pressure and temperature profiles?

• To determine the viscosity of the fluids being produced

• To detect the presence of gas hydrate formation or unwanted fluid influx

• To identify the exact composition of the formation fluids

• To measure the gas-to-liquid ratio in real-time

Which production logging tool is primarily used to measure gas-to-liquid ratios?

• Spinner flowmeters

• Acoustic tools

• Temperature sensors

• Pressure gauges

What type of well conditions can lead to significant challenges in using production logging tools effectively?

• Shallow, low-pressure wells

• Wells with multiple fluid phases (oil, gas, and water)

• Wells with low gas-to-liquid ratios

• Wells with consistent flow rates