Drills
1. Backward-up drill
- Used when a long line of a dialog is giving students trouble. Teacher breaks down the line into several parts. Students repeat a part of the sentence. Following teacher’s cue, students expand what they are repeating part by part until the entire line.
2. Chain drill
- Making a chain of conversation that forms around the room as student, one-by-one ask and answ
있는 일련의 파이프로, 구조해석시 수직방향으로 세워져 있는 보 구조물 가정을 하기도 한다. riser는 유정, 시추를 위한 Drilling Riser 와 해저에서 플랫폼으로 탄화수소를 운반하는 Production Riser 로 구분한다. Riser의 체계를 이해하는 것은 해양구조물의 Drilling/ Floating Production 운영에서 중요한 요소이다.
What is the problem?
Man’s growing energy demands
Supply of oil depends on
- Rates of extraction
- Endowment in Nature
- Economic and political factors
Propose of the project
Endowment in Nature
- Prediction of oil exhaustion
Rates of extraction
- Drilling cost and Depth
Why?
Increases with a resulting increase in
rig capacity
Changes in the rate of penetration.