Basic of Drillpipe Tensile Capacity and Its Calculation

This article demonstrates basic knowledge understanding of tensile capacity of the drill pipe and some calculation. First of all we need to know basic of material strength and for our case is strength of metal.

 Basic of Drillpipe Tensile Capacity and Its Calculation

There are few simple terminologies which we would like to explain.

Stress (σ)

Stress (σ) equals to force divided by cross sectional area of the material (F/A). For our case, we will discuss about only stress in tensile because the drill pipe is almost always designed to work in a tensile condition.

Stress (σ) = F/A

Figure 1 - Stress

Figure 1 – Stress (σ) = F/A

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Deepsea Aberdeen Rig Sank at the DSME shipyard in South Korea on Saturday

This is bad news ” Deepsea Aberdeen Sank at the DSME shipyard in South Korea on Saturday 28-Dec-13.

(Reuters) – A rig under construction at a Daewoo shipyard in South Korea, ordered by Norway’s Odfjell Drilling and intended for use by BP, sank on Saturday, a contractor who had staff working on board at the time of the accident told Reuters.

The incident was at a shipyard owned by Daewoo Shipbuilding and Marine Engineering off Geoje Island on the south coast.

“The rig has sunk and lies on the seabed by the quay. It is not submerged,” said Tor Henning Ramfjord, chief executive of National Oilwell Varco Norway.There were no immediate reports of injuries. It was unclear how many staff were on the rig, Deepsea Aberdeen, at the time of the accident.

The rig was to be used by BP for drilling at the Schiehallion and Loyal fields in British waters, BP said on its website.

Ramfjord said 38 employees of his company were on the rig at the time of the accident. All were safe, he said.

“Water seeped into the hull of a rig we ordered from DSME (Daewoo Shipbuilding and Marine Engineering) in South Korea. The hull is now at the bottom of the dock,” Odfjell Drilling spokesman Gisle Johanson told Norwegian public broadcaster NRK. All Odfjell Drilling employees were safe, he said.

A spokesman for Daewoo said there would be more information about the incident on Sunday morning, Korean time.

Ref: http://uk.reuters.com/article/2013/12/28/uk-daewoo-rig-bp-idUKBRE9BR09M20131228

 

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What Did You Do With Santa?

How do you get an F-104 for a yard art display?!

The site is near the Oak Creek Bridge on the St. Michael’s Road, on the eastern shore of Maryland (down the road from Delaware). The folks who own the property always have eye-catching displays celebrating various holidays through the year.. This year  they have certainly outdone themselves!

image001

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Learn The Basic About Drilling Rig Types from VDO Training Plus Transcript

This is another training VDO that is very good for entry level personnel who are working in the oilfield industry especially drilling part. This VDO will give the over view regarding rig types and their applications.

rig types vdo training

Additionally, we also add the VDO transcript to help people understand about the content clearly. Please feel free to share if you think this is advantageous for anybody.

VDO Transcript

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Why Shale Gas is The Future for Energy Source?

We are always looking for more sources of natural gas and the best way to find natural gas currently is b looking in shale deposits. We are doing this with a process called hydraulic fracturing or “fracking” as it is more commonly known as. There’s great controversy in this practice as well as great potential to reach larger deposits of natural gas which can then be used as fuel.

 Going Forward with Shale Gas

shale gas engery future

Currently shale gas is a popular way to get natural gas out of the ground but this may be stalled as more environmental groups oppose the fracking methods as they feel it harms the environment in the process. The biggest threat to the production of of shale gas environmental concerns which are only going to continue as more people oppose this method of natural gas production in many areas of the world.

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