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Atomic Bomb proposal for Gulf of Mexico blow out well a very bad idea for many reasons, by Geologist Chris Landau

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Atomic Bomb proposal for Gulf of Mexico blown out well a very bad idea for many reasons, by Mud Logging Geologist Chris Landau

Before I explain why there are a few points that the lay person must understand about terminology on a drilling rig and positions of seniority.

1) A mudlog is a schematic cross sectional drawing of the lithology (rock type) of the well that has been bored.

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Without looking at the mudlogs and e-logs, we are all navigating blind. They are the forensic tool that you use to discover what happened. Without the mudlog and e-logs, it like asking a person to cross the Antarctic without a map, a compass, a sextant, a radio, a satellite phone, a GPS system or any tool to help them navigate. Let us also include no navigation by the sun or stars. Basically we are being asked to find our way to the South Pole across a thousand miles of ice by gut feel alone. We all know we will get lost and not survive. The mudlog is your map and your compass and your forensic tool.

2) How many oil and gas horizons were there in this well? There was certainly more than one. The mudlog will list the gas horizons and oil horizons. Were there 10, 30 or 50? The picture the press is drawing of the oil zone is only good for elementary school textbooks. Which of these many horizons are we trying to seal? Are the proposed directional wells above some oil and gas horizons and below others. Why is this choice being made? Regardless the directional wells that are being drilled can not seal an open well or blown out well or blown out formation. Back pressure is required for drilling mud to stay in the well to keep the oil out to allow the cement to set. Whether you inject that cement from the top of the well or the bottom of the well, you have not changed a thing. The pressure in the well is the same everywhere. Directional wells will not work. You only create more holes with less back pressure to keep out the oil and gas. The drilling mud escapes. The cement escapes. Only new wells that do not intersect this blowout well will help drain the gas and oil pressure from this region. When this happens you can plug this well.

How much gas was there in each horizon? How thick was each horizon of gas and oil? Was that oil or gas horizon filled with seawater or brine solutions? How fast were they drilling through those horizons? How was the mud being weighted up with depth? These are vital questions that the press is NOT asking. Why should they? They have never worked on a drilling rig. They do not know what the right questions are. They need help from mudlogging geologists, roughneck drilling crews, company men, mudmen, petroleum engineers and geophysicists.

3) Is the Company man alive? If he is or is not available publish his daily report that he sent to BP Head office. He is in charge on the drilling site. His word is law. Everybody falls under his command on that site. There seems to be confusion as to who is in charge in the press. There is no confusion. Work does not proceed without a company man. The buck stops here. Call to publish the Company Man report.

4) Are the two mudlogging geologists alive? These guys are independent contractors who work on multiple drilling rigs for multiple companies. They are your first line of defense against a blowout, apart from the actual blowout preventers. If these guys are geologists, they are very bright people who have studied in principals of geology, physics, math and chemistry. These sometimes quiet intellectuals are working for the money in 12 hour shifts which can go on un-interrupted for up to a month depending on the site and whether there are other geologists to relieve them. Many do this job out of choice for 20 years. Others only for a few years. If a geologist falls ill and another is not immediately available, that shift is pushed to 24, 36 and 48 hours without sleep. The drilling does not stop to wait for a replacement geologist. The geologist can not leave, until the company gives him authority. In any case, he can not hitch a ride on a passing helicopter. Call to publish the geological mudreport.

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5) Are the mudmen still alive? They are your second line of defense against a blowout. They are there to monitor the mud. They have to add more barium sulfate to increase the specific gravity) of the mud (weight up the mud). If there is too much gas coming up with the mud and drill cuttings (broken bits of rock), they must add more barium sulfate. They must thin the mud down by adding water if the gas is being suppressed to such a degree that no gas readings are being detected. They must change the pH (acidity-alkalinity) to cope with different clay conditions that are plugging up the drill bit. They must do saline tests when gas and oil shows are encountered to determine if this is going to be a payable zone. Too much saline with gas or oil can lead to uneconomic wells. Call to publish the Mudman report.

6) The drill crew or roughnecks (ruff necks). How many of them are still alive? If there were 3 eight hour shifts, two thirds should be alive. Your third line of defense against a blowout. They know through years of experience and by working in certain areas and by drilling many wells, what is likely to be happening there. They know when it is time to slow down the drilling rate so that the mud man can weight up the mud and when it is time to circulate, to allow the drill mud to degas. They are continually checking with the geologists to see what his instruments are reading for the amount of gas detected in the formation. A "kick of gas" is when a new oil and gas horizon is struck and the mud weight is too low for that amount of gas being produced. More barium sulfate needs to be added to weight up the mud. They speak to the mudman who gets the roughnecks to pour in more barium sulfate. They know when it is time to "wipe the hole" A term used when all the drilling pipes are taken out to make sure that the hole is free of sticky cloying clay and that there are no broken teeth or buttons on the drill bit. Call to publish the roughneck 8 hourly reports.

7) Geophysical Borehole Loggers or Wireline Logging engineers. These people produce E-logs or electrical logs.

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I was born in South Africa in 1958. I came to the USA with my wife and three daughters in 2003. We became US citizens in 2009 and 2010. My wife Susan is a Special Education English Teacher. She has a bachelor's degree in Micro anatomy and (more...)
 

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