R 408.15722
R 408.15722 Derrick and mast foundations and guying.
Cite as Mich. Admin. Code R 408.15722
Rule 5722. (1) Foundations shall be capable of safely distributing the gross
weight of the derrick or mast under the maximum anticipated hook load.
(2) Guyline ground anchors shall be any type that satisfies the requirements
of subdivision (a) of this subrule. Soil conditions, terrain, and the use of surrounding
land determines the most applicable type of anchor. All anchors shall satisfy both of
the following requirements:
(a) An installed ground anchor, permanent or temporary, shall meet the pullout
requirements for the conditions of service. The anticipated climatic conditions,
including wind forces, for the geographic area shall be a prime consideration in
determining the anchor pullout requirements and pattern spacing. Anchor breaking
strength and pullout safety factors shall be in accordance with API SPEC 4E-1974,
entitled "Specification for Drilling and Well Servicing Structures," which is adopted
herein by reference in R 408.15721 (1) (d).
(b) Where soil is corrosive, metal components of permanent ground anchors
shall be galvanized or otherwise protected against corrosion.
(3) For permanent-type ground anchors, the well operator shall make
representative pull tests for the geographical area and size and type of anchor
involved. Representative pull tests shall be conducted along the anchor working
plane. Records of representative anchor pull tests for the area shall be maintained.
(4) Permanent anchors shall be inspected before each use by visually checking.
If damage or deterioration is apparent upon inspection, anchors shall be pull tested.
(5) Temporary ground anchors shall be of such type and so installed to provide
pullout strengths which exceed the maximum anticipated guyline pull for the
equipment to be used and the conditions of service. Records of representative anchor
pull tests for the area and size and type of anchor shall be maintained.
(6) A portable mast, either structure or pole type, that requires the use of external
guylines to assure stability shall have the external guylines in place immediately
following the raising and telescoping of the mast.