• Jan. 27, 1908 - Lightning struck tank number 3 of the Union Oil Co. tank farm at Avila. The bolt struck at 3:30 p.m. and ignited the oil stored in the tank. • October 5, 1913 - A spark from a passing locomotive was blamed for starting a fire, in a 250,000 gallon tank of distillate oil at the San Diego Standard Oil tank yard. As the oil burned it threw sparks skyward, which rained down on several other tanks nearby, igniting them. The fire burned for 2 days. This report describes fatal incidents identified by the NIOSH Fatalities in Oil and Gas Extraction (FOG) database that occurred in 2014. The purpose of FOG is to collect detailed information about worker fatalities related to U.S. oil and gas extraction.
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The mast is normally used on land drilling rig types requiring a good deal of mobility; they are rarely used on offshore rigs. The racking board is in a cantilever position and lengths of drill pipeare racked on a floor, called the setback, that is separate from the mast structure. Most masts have one side open (window side),. .
There are different types of masts for land drilling and service rigs: 1. Folding Type 2. Telescopic Masts 3. Bootstrap Type 4. Portable/Cantilivered masts (Non-Guy line) .
Figure 8 shows a telescopic mast. Telescopic masts with their drawworks and engines are usually mounted on trucks or trailers. The load should be borne by hydraulic or. .
Each structure shall be rated for the following applicable loading conditions. The following ratings do not include any allowance for impact. Acceleration, impact, setback, and wind loads will reduce the rated static hook load capacity. Technical specifications are identical to those for derricks: 1. Maximum hook load given the reeving system, 2. F. .
For conventional Mast (Land rig), the below pictures show the erection sequence of rigging up For rigging up the vertical mast, the below pictures show the bootstrap sequence of rigging up.
[pdf] • (#22) is a section of large diameter pipe fitted to the top of the that the attaches to via a side outlet, to allow the to flow back to the .• (BOPs) (#23 and #24) are devices installed at the wellhead to prevent fluids and gases from unintentionally escaping from the . #23 is the annular (often referred to as Hydril named after a manufacturer), and #24 is the pipe rams and blind rams.
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