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Portable Masts

API Standard 4D (also superseded by Standard 4F) provides rating of portable masts as follows ... [Pg.506]

This is an API Standard 4A rating capacity and should not be confused with the actual derrick load that will be discussed in the section titled Derricks and Portable Masts."... [Pg.506]

The manufacturer shall establish the reduced rated static hook loads for the same conditions under which the maximum rated static hook loads apply, but with the addition of the pipe-setback and sucker-rod loadings. The reduced rated static hook loads shall be expressed as percentages of the maximum rated static hook loads. Thus, the portable mast ratings in Standard 4D include a safety factor of 2 to allow for wind and impact loads, and require the manufacturer to specify further capacity reductions due to setback. [Pg.507]

The drilling and well servicing structure manufacturer has carefully designed and selected materials for his or her portable mast. The mast should perform satisfactorily within the stipulated load capacities and in accordance with the instructions. Every operator should study the instructions and be prepared for erecting, lowering, and using the mast. [Pg.516]

Guy Line Anchors for Portable Masts with Guy Lines... [Pg.517]

API Standard 4D, Sixth Edition API Specification for Portable Masts," API, Dallas, March 1967. [Pg.1373]

See other pages where Portable Masts is mentioned: [Pg.497]    [Pg.499]    [Pg.499]    [Pg.501]    [Pg.503]    [Pg.505]    [Pg.507]    [Pg.509]    [Pg.511]    [Pg.513]    [Pg.515]    [Pg.517]    [Pg.517]    [Pg.519]    [Pg.520]    [Pg.521]    [Pg.521]    [Pg.1373]   


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