FTP, abréviation de Flowing Tubing Pressure (Pression de Tubage en Ecoulement), est une mesure essentielle dans la production pétrolière et gazière, indiquant la pression à l'intérieur de la colonne de tubage au niveau du puits lorsque le pétrole ou le gaz s'écoule. C'est un paramètre clé pour comprendre les performances du puits et optimiser la production.
Comprendre FTP :
Pourquoi FTP est important :
Comment FTP est mesurée :
Facteurs affectant FTP :
Applications des données FTP :
Résumé :
FTP est une mesure essentielle dans l'industrie pétrolière et gazière, offrant une fenêtre sur les performances du puits, les conditions du réservoir et les problèmes potentiels. Comprendre et surveiller FTP est crucial pour une production efficace, une bonne gestion des puits et l'optimisation de l'économie du champ à long terme.
Instructions: Choose the best answer for each question.
1. What does FTP stand for in the oil and gas industry?
a) Flowing Tubing Pressure b) Fluid Transfer Pump c) Flowing Tank Pressure d) Fluid Transmission Pipeline
a) Flowing Tubing Pressure
2. What is the primary function of the tubing string in oil and gas production?
a) To transport produced fluids to the surface b) To inject fluids into the reservoir c) To measure reservoir pressure d) To prevent wellbore collapse
a) To transport produced fluids to the surface
3. Which of the following factors DOES NOT directly influence FTP?
a) Reservoir pressure b) Flow rate c) Wellbore temperature d) Tubing size and condition
c) Wellbore temperature
4. A declining FTP can indicate:
a) Increased production rates b) Rising reservoir pressure c) Potential issues within the well d) Optimal well performance
c) Potential issues within the well
5. FTP data is NOT used for:
a) Production optimization b) Well diagnosis c) Determining the best drilling method d) Reservoir management
c) Determining the best drilling method
Scenario: An oil well has been producing for several years. The FTP has been steadily declining over the past few months. The operator suspects the decline is due to a combination of factors:
Task:
**1. Key Factors Affecting FTP:** * **Reservoir pressure:** Depletion leads to lower driving force for fluid flow, decreasing FTP. * **Tubing condition:** Wear and tear, including corrosion, can cause increased pressure drop, lowering FTP. * **Flow rate:** The decline in FTP might be contributing to a lower flow rate. **2. Possible Actions:** * **Artificial Lift:** Installing a pump in the well to assist fluid flow, compensating for declining reservoir pressure. * **Tubing Replacement:** Replacing the existing tubing string with new, undamaged tubing, removing restrictions and improving flow efficiency. **3. Explanation:** * **Artificial Lift:** A pump can provide additional pressure to push fluids to the surface, overcoming the decreased reservoir pressure and increasing FTP. * **Tubing Replacement:** Replacing the tubing string with new, clean tubing eliminates internal restrictions and improves flow, leading to a higher FTP and increased production.