BP Plc and U.S. officials are evaluating how to proceed with a relief well, which is intended to ensure BP’s damaged and will never leak. BP has been ordered by U.S. officials for help, and after pressure tests do not prove there is no further risk of oil leaking from the pit, National Incident Commander Thad Allen said yesterday in a press conference in Schriever, Louisiana.
BP and the government scientists are reviewing how to proceed after determining that about 1,000 barrels of oil trapped in Macondo a good cast cement plug from the top of last week.
“The relief and will be finished and we will kill it right,” Allen said. “The question is how to do it.”
Injecting mud and cement from the bottom, as planned, the operation of the oil over and wreck the existing seal, creating a new route to the surface for oil and gas, Allen said during a conference call. BP stopped the leak 15-07 after the well gushed an estimated 4.9 million barrels, making it the world’s largest offshore oil accidental.
BP pumped cement into the top of the well last week. The pressure test shows the cement connected to the network and the central core, or the production casing, then flowed into the oil reservoir and a backup of the annulus, a space between the production casing and the outer shell of all towards the top of the plug runs properly.
Cement Barrier
“How thick the cement barrier between the ring and the reservoir, as we do not know,” Allen said. “It can be very thin, and we put pressure on that and we have a problem.”
The dilemma results from the decision of Allen’s BP and to have the plug with cement from the top after injecting a layer of mud for oil and gas to push back into the reservoir, some of Petroleum Engineers said. Leaving the mud in place, then pushing it up with cement and pumped from the soil and the topography would be a better way forward will be, they said.
“It would have been easier and safer to kill the relief Well Well,” Les Plymouth, a retired petroleum engineer, said yesterday in an e-mail message. “If it is cemented to the bottom, you can properly insured is dead.”
Filling Options
Instead of the damaged property to intercept can only order BP in the oil and gas and inject thousands of tons of mud drilling around the base of the pit to cut off any flow, Nansen Saleri, Chief Executive Officer of Quantum Impact Tank LLC, a Houston-based consultant to oil companies on how to improve production, said yesterday in a telephone interview.
“This is a standard procedure,” he said.
Allen said he can to the damaged BP and planned intercept and firmly cement the annulus, accept that some of the oil now in the pit can be pushed into the sea.
Allen had said on 12/08 that he could not requiring BP to the relief and finish, which started 02-05.
The relief and was drilled to a depth of 17,909 feet (5549 meters) below the surface of the ocean, London-based BP said in a statement on its website. It was about 30 meters from the intersection point was when drilling August 10 suspended because of an approaching storm, Allen said at the time.
Drilling Delay
BP to 96 hours to resume drilling the relief well, Allen said. The Macondo gusher began after a 20-04 explosion aboard the drilling rig Deepwater Horizon 40 miles (64 kilometers) off the coast of Louisiana 11 people slain.
The disaster at one point wiped out more than half of the shares of BP values, forced the company’s dividend to suspend, stop, put in deep water drilling in the U.S. and shut as much as 37 percent of the Gulf of Mexico to the fisheries distribute the oil. BP said Aug. 9 the cost of stopping and cleaning up the spill had risen to $ 6,100,000,000.
BP reported a record quarterly loss of 17.2 billion U.S. dollars on July 27 after booking a 32.2 billion U.S. dollars in tax expense related to the spill. The company said it would sell assets to expand to as much as 30 billion U.S. dollars to increase over 18 months to pay for the clean-up costs and liabilities of the environmental disaster, which includes the cost Chief Executive Officer Tony Hayward’s job to help.
source:bloomberg
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