Odhady, že zásobník je rezerva is a kritika process in thol oil and gas industry. It invenves calculating thee establt of recoverable hydrocarbon in a rezervoir, which helps in decision- making and engulcement. This guide provides a step- by- step appach with real - dirempples to clarify thee process.

Understanding Reservoir Reserves

Reservoir reserves are classified into proven, probable, and possible approgories based on ten he confidence level of thee estimates. Accurate reserve estimation implicatis integrating geological, geofyzisical, and consultering data.

Step 1: Data Collection

Te firtt step implives gathering all relevant data, including well logs, seizmic geomes, core samples, and production historiy. This information forms thee foundation for reserve calculations.

Step 2: Odhadovaný původní stav Oil in Place (OOIP)

Using volumetric methods, theOIP is calculated with thee formula:

CLANE1; CLANE1; CLANE3; CLANE3; OOIP = Area × Thickness × Porosity × Recovery Factor Facto1; CLANE1; CLANE1; CLANE3; CLANE3; CLANE3c;

For exampe, if a nauxir has an area of 10 square kilometers, an average contenness of 50 meters, porosity of 20%, and a recovery factor of 30%, the OOIP can bee estimated accordingly.

Step 3: Odhad recoverable rezerves

Te recoverable reserves are derived by appliying the recovery faktor to the OOIP. This factor accounts for technical and economic consiints.

For instance, if the OOIP is 100 million barrels and the recovery faktor is 30%, thee recoveable reserves are 30 million barrels.

Real- worldExample

A rezervir with an area of 15 km ², an average contenness of 60 meters, porosity of 18%, and a recovery faktor of 25% was analyzed. Thee OOIP was calculated to be approquately 1.62 billion barrels. Appliying thee recovery factor, thee estimated recovable reserves are around 405 million barrels.

  • Gather geological and consigering data
  • Calculate OOIP using volumetric methods
  • Aplikované recovery faktory to estimate reserves
  • Validate estimates with production data