API 4F pdf download

API 4F pdf download Specifcation for Drilling and Well Servicing Structures
3.34
structural safety levelssL
The classification of a drilling structure application by a purchaser to reflect various degrees of consequence offailure, considering life safety and other issues such as pollution, economic loss, and public concern.
3.35
substructure
Structure(s) through which the mast load, hook load, rotary load, andor setback load are transmitted.
3.36
wind environment
The combination of rig configuration and load combinations to be considered with a given wind loading.4Product Specification Levels
This standard establishes requirements for two PSLs for drilling and well servicing structures that define two levelsof technical and quality requirements. These requirements reflect practices currenty being implemented by abroad spectrum of the manufacturing industry.PSL 1 includes practices currently being implemented by a broadspectrum of the manufacturing industry.PSL 2 includes all the requirements of PSL1 plus additional requirements.5 Marking and lnformation
5.1 Nameplate
Drilling and well servicing structures manufactured in accordance with this standard shall be identified by anameplate bearing at least the information specified in 5.2 through 5.5, including the units of measurement whereapplicable. Markings shall be either raised or stamped. The nameplate shall be securely affixed to the structurein a conspicuous place.
5.2Derrick and Mast Nameplate lnformation
NOTE See 5.3 for nameplate information for service rig masts.The following information shall be provided:
a) manufacturer’s name;
b)manufacturer’s address;
c) date of manufacture, including month and year;d)serial number;
e) clear height, m (ft);
f)maximum rated static hook load with guy lines, if applicable, for stated number of lines to traveling block, KN
(short tons);
g) maximum rated design wind velocity，, . at reference elevation of 10 m (33 ft) above mean sea level or
ground, in knots, for 3-second gust duration with guy lines, if applicable, with rated capacity of pipe rackedin racking pllatform, m’s (knots);
h) maximum rated design wind velocity, v. ., at reference elevation of 10 m (33 ft) above mean sea level or
ground, in knots， for 3-second gust duration with guy lines, if applicable,without pipe racked in rackingplatform, ms (knots);
1) elevation of base of derick or mast above mean sea level or ground used in design for wind loading, m (t);:
j) API 4F, Fith Editin; .
k) manufacurer’s guying pattern, if applicable;
) the fllowing text:
CAUTION- Acceleration or impact loading, also setback, rods, and wind loads will reduce the maximum rated static hook load capacity.
m) manufacturer’s load distrbution diagram (may be placed in mast instructions);
n) graph plotting allowable static hook load for wind velocities varying from zero to maximum design rated wind velocity, Vwr with full rated setback and with maximum number of lines to traveling block;
o) mast setup distance for mast with guy lines, m (ft);
p) PSL 2, if applicable; and
q) supplementary information as specifled in the particular SR, if applicable (see Annex A).
5.3 Service Rig Mast Nameplate Information
The fllowing information shall be provided:
a) manufacturer’s name;
b) manufacturer’s address;
c) date of manufacture, including month and year,
d) serial number;
e) clear height, m (t): .
f) maximum rated static hook load with guy lines, if applicable, for stated number of lines to traveling block, KN (short tons);
g) alowable static hook load with guy lines, if applicable, for stated number of lines to traveling block, KN (short tons) in combination with rated capacity of pipe racked and maximum rated capacity of rods hung in mast,KN (short tons), if applicable;
h) maximum rated design wind velocity, Vune; at reference elevation of 10 m (33 f) above mean sea level or ground, in knots, for 3-second gust duration with guy lines, if applicable, with rated capacity of pipe racked on racking platform, m/s (knots);
i) maximum rated design wind velocity, Vv.er at reference elevation of 10 m (33 ft) above mean sea level or ground, in knots, for 3-second gust duration with guy lines, if applicable, without pipe racked on racking platform, m/s (knots);
) elevation of base of derick or mast above mean sea level or ground used in design for wind loading. m ();
k) API 4F, Fith Edition;
I) manufacturer’s guying patterm, if applicable;