Dans le monde du forage et de l'achèvement des puits, "string" est un terme omniprésent utilisé pour décrire les composants verticaux interconnectés qui descendent dans le trou de forage. Cela englobe une variété d'équipements, chacun jouant un rôle crucial dans le processus d'extraction du pétrole et du gaz de la terre.
Voici une ventilation des "strings" les plus courants que vous rencontrerez :
1. Colonne de tubage :
2. Colonne de tubing :
3. Colonne de tige de pompe :
4. Colonne de tige de forage :
Comprendre la terminologie "String"
En comprenant les différents types de "strings" utilisés dans le forage et l'achèvement des puits, les professionnels peuvent analyser plus efficacement les performances des puits, diagnostiquer les problèmes et optimiser la production. Chaque "string" joue un rôle essentiel dans le processus complexe d'extraction des hydrocarbures de la terre, et leur conception, leur installation et leur maintenance adéquates sont essentielles pour garantir des opérations sûres et efficaces.
Instructions: Choose the best answer for each question.
1. Which of the following is NOT a type of casing string?
(a) Conductor pipe (b) Surface casing (c) Production tubing (d) Intermediate casing
The correct answer is **(c) Production tubing**. Production tubing is part of the tubing string, not the casing string.
2. The primary function of the tubing string is to:
(a) Isolate different formations (b) Support the wellbore (c) Transport fluids to the surface (d) Rotate the drill bit
The correct answer is **(c) Transport fluids to the surface**. The tubing string carries oil and gas from the reservoir to the surface.
3. What type of "string" is used for artificial lift in oil wells?
(a) Casing string (b) Tubing string (c) Sucker rod string (d) Drill pipe string
The correct answer is **(c) Sucker rod string**. Sucker rods are connected to a pump submerged in the well to lift oil.
4. The drill pipe string is responsible for:
(a) Isolating formations (b) Providing artificial lift (c) Circulating drilling fluid (d) Protecting surface water
The correct answer is **(c) Circulating drilling fluid**. The drill pipe string transports drilling fluid to the drill bit and back to the surface.
5. Which of the following is NOT a type of drill pipe?
(a) Heavy-weight drill pipe (b) Premium drill pipe (c) Drill collars (d) Liner tubing
The correct answer is **(d) Liner tubing**. Liner tubing is a type of tubing string, not drill pipe.
Scenario: You are designing the well completion for a new oil well. The reservoir is located at a depth of 5,000 feet and is expected to produce a high volume of oil.
Task:
Instructions:
Here's a possible solution, with justification:
1. Casing string:
Justification:
2. Tubing string:
Justification:
3. Sucker rod string:
Justification:
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