factbox - how bp will switch oil leak caps? - oil containment
Last Saturday, BP (BP. N)(BP. N)
Take an oil safety cap from the damaged Gulf well so it can be replaced by a larger lid and seal within four to seven days.
Unlike the original cover, the new cover should be able to accommodate all crude oil leaks from the top of the submarine fault blowout preventer equipment.
According to BP's written plan and Kent Wells, BP's senior vice president of exploration and production, and plans for the future, how the process will proceed.
* On July 10, BP removed the safety helmet installed on the blowout prevention equipment failure at 1 mile under the sea in June 3 (1. 6 km)
Under the water.
* Crude oil spews from the jagged residue of the pipe covered by the cover.
* The underwater robot will remove the pipe residue and flange.
* Pair of sides-by-
The side drill pipe sticking out at the top of the blowout preventer equipment will be tied to the strap.
* A new flange will be placed at the top of the pipe and then bolted after the strap is cut off.
* A 160,000-pound (73 tonne)
The "cap stack" will be lowered on the new flange ".
* The new cover is designed to seal the entire opening with the full cover of the flange, unlike the previous cover that has just covered the rest of the pipe.
* If the cover and seal work according to the design, there should be no more crude oil leakage at the top of the faulty blowout preventer equipment.
* The previous lid allows oil to leak out from the bottom and top to prevent seawater from entering.
Cold sea water under extreme pressure can be mixed with natural gas, which leaks with crude oil and forms ice
Like water compounds that hinder the collection of work.
* BP has another similar cover and if the new cover and seal do not work, remove it on the bottom of the sea and put it on top of the leak. MORE OIL-
In July 10, BP was connecting and testing a rig, a spiral producer that could collect up to 25,000 barrels of oil per day.
* BP connects the hose at the blowout preventer to the floating pipe, and the floating pipe is connected to the manufacturer through the hose again.
* The floating-
The pipe setup allows the vessel to disconnect quickly from the pipe and the vessel can leave the pipe if the hurricane comes.
* Another rig —
Q4000 installed on June 16-
It will continue to draw from the leak and burn an average of 8,000 barrels of oil a day.
* Lid switch and ramp-
The rise of the spiral producer is the installation of four-vessel oil-
Prepare the capture system for the hurricane.
* At the end of July, a well in Tosa Pisces
The modified test ship handles up to 25,000 barrels per day, will replace the Q4000 and connect to the blowout preventer via a second floating pipe.
* Yue Yang Co. , Ltd (RIG. N)
The Discoverer Enterprise collects crude oil through a safety helmet removed on July 10, and the Discoverer Clear Leader of the second drilling ship Transocean, each of which will be connected to a new cover and seal through a hose and drill pipe.
* The total capacity of these four ships will reach 80,000 barrels per day and can be quickly disconnected to get out of the path of the hurricane.
* If the storm forces the disconnection, the crude oil will pour out without restriction until the vessel returns and reconnects.
* Continue drilling on two relief wells with the aim of intercepting the well and blocking the leaking well under the sea floor.
* The first well is 12,810 feet (3,904 metres)
July 10 under the sea floor, or 190 feet (58 metres)
From the bottom of the explosion-out well.
* BP expects to try to drill into the damaged well once it finds the best target by the week of July 19.
* Blocking leaks may take to the medium term
In August, depending on the depth at which the relief well must be drilled into the affected well and how many times BP must be pumped in heavy drilling fluid and cement.
* The second relief well is a backup of the first relief well, which is already 10,961 feet bored (3,341 metres)
By the end of July 10
* Once the pipe is fixed and opened, the second decompression well will stop drilling so that it does not interfere with the first decompression well finding the correct interception target using the sensor. (
Kristen Hayes's report in Houston
Editor Mohammed zahham)