Mich. Admin. Code R. 408.15722 - Derrick and mast foundations and guying
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.
Notes
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