Rig Derrick Load Calculation

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The drilling line is reeved over a set of crow block and down to another set of sheaves known as travelling block. The hook connected to travelling block is used to suspend the drilling load. One end of drilling line is wound onto the drawworks and this line is called “Fast Line”. Other end of the drilling line is tied into an anchor point on the rig floor and this line is named as “Dead Line”. The drilling line is reeved around the blocks several times in order to meet required load.

derrick Load Calculation 1

According to the diagram above, we can use basic physic to determine derrick load.

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Applications of Directional Drilling in Oil and Gas Industry

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Directional drilling is an advance drilling technique which can deviate wellbore to the planned trajectory in order to reach the reservoir targets. Nowadays, directional drilling is widely used around the world because it has several advantages over a normal vertical well. Oil and gas reservoir shapes has the lateral length more than vertical length so the directional drilling will have more opportunities to reach potential sands. Ultimately, hydrocarbon reserves can be extracted with the directional wells. The applications of directional drilling are as follows:

application of dd

Sidetrack Well

Applications-of-Directional-Drilling---side-track

Sidetrack is the process to drill a secondary well from an existing wellbore. Directional drilling technique is applied to successfully side track. There are advantages of sidetracking well as bypassing fish, kicking off from cement plug, extend of the producing zones, etc.

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Blowout at EOG site in Eagle Ford Shale – Nabors Rig Blows Out

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I would like to share this NEWS.

A drilling rig owned by Nabors Drilling USA blew out and caught fire Wednesday evening just before 7 pm while drilling an Eagle Ford Shale horizontal well for EOG Resources in Lavaca County, Texas.

Nabors+Rig+Fire

The well control incident occurred at Farm to Market 966 and State Highway 111 near Petersville, Texas. No injuries were reported.
Well control specialists from Houston have been called to put out the rig fire and conduct an investigation according to Shiner Volunteer Fire department Chief Mark Panus.
A nearby resident, who asked not to be identified, said her husband was in the front yard with their 4 year-old son at the time of the explosion and saw workers running. When he asked workers what happened the workers kept running so he too grabbed their son and ran, she said.

Ref: http://www.drillingahead.com/page/nabors-rig-blows-out-while-drilling-for-eog-resources-in-eagle-fo