Dans l'industrie pétrolière et gazière, une **suspension de revêtement** est un composant crucial utilisé lors de l'achèvement d'un puits. Il s'agit essentiellement d'un outil spécialisé conçu pour **sécuriser et suspendre une colonne de revêtement à l'intérieur d'un puits**. Cette colonne de revêtement, un tubage protecteur utilisé pour isoler des sections spécifiques du puits, peut varier de quelques centaines de mètres à plusieurs milliers de mètres de longueur.
**Comment cela fonctionne-t-il ?**
Une suspension de revêtement, similaire en principe à un packer, comprend généralement :
**Types de Suspensions de Revêtements :**
**Importance des Suspensions de Revêtements :**
Les suspensions de revêtements jouent un rôle crucial dans l'achèvement des puits en :
**Conclusion :**
Les suspensions de revêtements sont des composants essentiels dans l'achèvement des puits, jouant un rôle crucial dans la sécurisation de la colonne de revêtement, le contrôle de l'écoulement de fluide et l'amélioration des performances globales du puits. Comprendre leur conception, leur fonctionnement et leurs différents types est essentiel pour les professionnels impliqués dans l'exploration et la production pétrolières et gazières.
Instructions: Choose the best answer for each question.
1. What is the primary function of a liner hanger?
a) To connect the production tubing to the wellhead. b) To prevent sand production from the wellbore. c) To secure and suspend a liner string within a wellbore. d) To control the flow of oil and gas to the surface.
c) To secure and suspend a liner string within a wellbore.
2. Which of the following components is NOT typically found in a liner hanger?
a) Slips b) Body c) Setting mechanism d) Blowout preventer
d) Blowout preventer
3. What is the main difference between mechanical and hydraulic liner hangers?
a) Mechanical liner hangers are more expensive. b) Hydraulic liner hangers are used only in deep wells. c) Mechanical liner hangers use mechanical force to set the slips, while hydraulic liner hangers use hydraulic pressure. d) Mechanical liner hangers are more commonly used.
c) Mechanical liner hangers use mechanical force to set the slips, while hydraulic liner hangers use hydraulic pressure.
4. Which type of liner hanger is designed for long-term installation?
a) Retrievable liner hanger b) Permanent liner hanger c) Mechanical liner hanger d) Hydraulic liner hanger
b) Permanent liner hanger
5. Which of the following is NOT a benefit of using liner hangers in well completion?
a) Securing the liner string b) Preventing fluid flow c) Reducing the risk of wellbore collapse d) Enabling efficient well operations
c) Reducing the risk of wellbore collapse
Scenario: You are working on a well completion project. The well is 10,000 feet deep, and you need to install a liner string to isolate a specific zone between 5,000 feet and 8,000 feet. You have two options for liner hangers:
Task:
**Option B (Hydraulic liner hanger) is more suitable for this scenario.** **Reasons:** * **Precise Depth Control:** Hydraulic liner hangers offer precise control over the setting depth. This is crucial for this scenario because the liner string needs to be isolated at a specific depth (5,000 feet). * **Remote Activation:** Hydraulic liner hangers can be activated remotely, allowing for more flexibility and control during installation. **Steps involved in installing the hydraulic liner hanger:** 1. **Lower the liner string into the wellbore:** The liner string is carefully lowered to the desired setting depth (5,000 feet). 2. **Position the hydraulic liner hanger:** The hydraulic liner hanger is positioned at the desired depth. 3. **Activate the hydraulic setting mechanism:** The hydraulic setting mechanism is activated, expanding the slips and creating a tight seal against the wellbore wall. 4. **Continue lowering the liner string:** The liner string is continued to be lowered to the desired depth (8,000 feet). 5. **Install production tubing and other well completion components:** The production tubing and other necessary well completion components are installed.
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