welltest
A welltest, commonly referred to as a well integrity test or pressure test, is a procedure used in the oil and gas industry to evaluate the integrity and performance of a wellbore. The primary purpose of a welltest is to determine the flow characteristics of a reservoir, assess the efficiency of the well, and ensure that it operates safely and efficiently.
Welltests are typically conducted after drilling and completion operations, or during the production phase, to gather
Common types of welltests include:
- **Pressure Buildup Test (PBT):** Measures pressure recovery after production to estimate reservoir properties.
- **Drawdown Test:** Observes pressure decline during production to assess well performance.
- **Falloff Test:** Similar to a buildup test but conducted after an injection period.
- **Interference Test:** Evaluates communication between wells in a reservoir.
Welltesting is essential for optimizing production strategies, identifying potential issues like leaks or formation damage, and