Introduction

Introduction:
On April 20 , 2010 people woke up on the second biggest tragedy happened on the U.S. It was the explosion of the Deep water Horizon offshore oil rig on the Gulf of Mexico. The problem started when the rig was ready to move and leave behind it the oil well which had drilled by the crew. The name of the well is Macondo and it will cover by mechanism called cementing until other crew working on different vessel (rig) come to extract the oil from the hydrocarbon reservoir which is located miles below the surface of the Gulf of Mexico. Brian Morel is an engineer who work in BP team that designed the Macondo well. On April 20 Morel was watching a team from Halliburton when they cementing the Macondo Well in deep water Horizon. They used cementing process to keep the well capped temporarily until other crew come to harvest the oil from the hydrocarbon reservoir.It seemed that everything with the cementing procedures had gone well. The decision made by BP make people happy but BP choice team from another company —Schlumberger—did not have to conduct a cement evaluation. That decision would save BP time and a $128,000 Schlumberger fee. The decision the BP decide is wrong because all the disaster began with the a well integrity failure which was caused by a bad cement job. Some of the facts that more than 200 million gallons of crude oil was pumped into the Gulf of Mexico for a total of 87 days, making it the biggest oil spill in U.S. history and more than 200 million gallons of crude oil was pumped into the Gulf of Mexico for a total of 87 days, making it the biggest oil spill in U.S. history and the initial oil rig explosion killed 11 people and injured 17 others.

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