Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0012 - OSHA - Oil & Gas Well Special Servicing › Chapter 6 - EQUIPMENT › Section 6-1 - Special Services Derricks (SSD)

Current through July 13, 2024
(a) Each SSD shall
				display the name of manufacturer, safe load capacity, wind load capacity of
				miles per hour and capacity rating of the derrick or mast. This requirement is
				effective no later than 180 days after the effective date of these rules and
				regulations.
(b) No SSD shall be
				subjected to a compression load greater than the safe load limit shown on the
				manufacturer's plate.
(c) SSD shall
				be set up and guyed according to the manufacturer's recommendations and chocked
				or otherwise immobilized.
(d) SSD
				shall be equipped with guards which shall prevent the rigup lines from being
				displaced from the sheaves during operations or when being raised to, or
				lowered from, the operating position.
(e) A visual inspection of the SSD shall be
				made by a qualified person before the SSD is raised or lowered.
(f) A qualified and authorized person shall
				be in charge of raising or lowering an SSD.
(g) Before any SSD is raised or lowered, all
				tools and material not secured to the derrick or mast shall be removed from the
				derrick or mast.
(h) No employee
				shall be allowed in the SSD when it is being raised or lowered.
(i) Each SSD platform shall be constructed,
				maintained and secured to the SSD to withstand the weight of the employees or
				other stresses which may normally be placed on it.
(j) If used, platforms shall be attached to
				the SSD in such a manner as to keep them from falling if jarred loose or
				broken.
(k) Unattached tools or
				material of any kind shall not be kept in the SSD above the SSD floor unless
				there is occasion for their immediate use.
(l) SSD shall be equipped with locking
				devices with sufficient strength to prevent the SSD from bending at the hinge
				point. The locking device shall be approved by the rig manufacturer. The SSD
				shall be locked as soon as the mast is in position and remain locked until the
				mast is to be lowered.
(m) No
				employee shall be in the SSD when working or jarring tools.
(n) An SSD shall not be moved from one
				location to another or driven on roads with the mast in a vertical or
				semi-vertical position.
(o) A
				dead-line anchor for a rig up line, if used, shall be so constructed, installed
				and maintained that its strength shall be at least equal to the working
				strength of the rig up line.
(p)
				Every rig up line used in special services operations shall have a minimum
				safety factor of three (3), determined as follows:
Safety Factor = B (Nominal breaking point of the line in
				  pounds x No. of lines)/ W (Calculated total static loads in pounds)
(q) All rig up lines shall be
				visually inspected by competent person of the SSD daily when in use, and shall
				be thoroughly inspected at least every six (6) months, with a record made of
				each six (6) month's inspection which will indicate any defects noted.
				Exception: this requirement does not apply to conductor wirelines. Any
				deterioration noted as a result of the inspection shall be recorded and
				determination made as to whether the rig up line should be replaced. When the
				rig up line is replaced, it shall be recorded on the inspection report. Any rig
				up line shall be removed from service when any of the following conditions
				exist:
(i) When rig up lines are found to
				have four (4) percent of the total number of wires composing such wire, broken
				in one (1) lay;
(ii) When marked
				corrosion appears;
(iii) When
				corroded or broken wires at end connections are noted;
(iv) When end connections are corroded,
				cracked, bent, worn, or improperly applied; or
(v) When evidence of kinking, crushing,
				cutting or unstranding are noted.