Section R614-2-12 - Drilling Industry - Hoisting EquipmentA. Derricks and Cranes. 1. The employer shall comply with the manufacturer's specifications and limitations applicable to the operation of any derrick. Where manufacturer's specifications are not available, the limitations assigned to the equipment shall be based on the determinations of a qualified engineer competent in this field and such determinations will be appropriately documented and recorded.2. Traveling Blocks shall have an operational limiting device or adequate crown timbers properly installed (Special Services are excluded).3. Cranes mounted on barges.a. When a crane is mounted on a barge, the rated load of a crane shall not exceed the original capacity specified by the manufacturer.b. A load rating chart, with clearly legible letters and figures, shall be provided with each crane, and securely fixed at a location easily visible to the operator.c. When load ratings are reduced to stay within the limits for list of the barge with the crane mounted on it, a new load rating chart shall be provided.d. Cranes on barges shall be positively secured.B. Truck-Mounted Masts and Derricks. The employer shall require that truck-mounted derricks or masts are not moved while in a raised position. This does not apply to the skidding of a drilling rig.
C. Personnel Hoisting. 1. Well Drilling: Employees shall not ride the traveling blocks to or from the boards (except in cases of emergency).2. Special Services: Riding hoisting equipment.a. No employee shall ride traveling blocks when rods or tubing or any other downhole equipment is being moved.b. Anyone riding the traveling blocks shall wear an approved safety harness with appropriate safety line anchored and adjusted to prevent a fall of over 6 feet.3. The cat-line shall not be used as a personnel carrier except in an emergency.D. Drawworks. 1. The drawworks shall not be operated without all guards in position and properly maintained.2. If lubrication fittings are not accessible with guards in place, machinery shall be stopped for oiling and greasing.3. The brakes, linkage, and brake flanges of the drawworks shall be checked every day and repaired or replaced as necessary.E. Cathead. 1. A blunt smooth-edged divider to separate the first wrap of a line on a cathead shall be installed on all manually-operated rope catheads and the clearance between the device and the friction surface of the cathead shall not exceed 1/2 of an inch.2. The friction surface and flanges of a cathead on which a rope is manually operated shall be smooth and the diameter of the cathead between the flanges shall be uniform throughout its length with an allowable tolerance of 3/8 of an inch.3. The key seat and projecting key on a cathead shall be covered with a smooth thimble or plate.4. When the cathead is unattended, no rope or line shall be left wrapped on or in contact with the cathead.5. A qualified employee shall be at the controls while a cathead is in use. He shall stop the rotation of the cathead immediately in event of an emergency.6. No splice other than by the manufacturer shall be allowed to come into contact with the friction surface of the cathead.7. Each cathead using chain shall be equipped with a manually operated cathead clutch or with another device adequate to keep the rotation of the cathead under control when it is in use. The clutch or device shall be of the "nongrab" type and shall release automatically when not manually held in the engaged position.8. Every chain used in a spinning line shall have a fiber tailrope between 8 inches and 12 inches in length fastened to the pipe end of the chain.9. Connections between lengths of cathead chain, tong chains, and spinning chain shall be of the connecting link or swivel type and of strength equal to the lighter chain. Connecting links and swivels shall be of a size and type suitable for the chain in use.10. The operator of a cathead shall keep his operating area clear at all times. That portion of the catline not being used shall be kept coiled or spooled.F. Wire Ropes. 1. All hoisting lines (wire ropes) shall be visually checked by a competent person daily, and shall be thoroughly inspected at least each 30 days in conjunction with a ton-mile program, or a record made of each 30 day inspection which shall designate defects and deterioration. When the wire rope is slipped or replaced, it shall be recorded on the inspection report as to date and length of wire rope removed. Such written report must be kept on file at the drilling rig and local office.2. A dead-line anchor for a drilling line shall be so constructed, installed, and maintained that its strength shall at least equal the working strength of the hoisting line.3. All lines and sand lines shall be visually checked daily when in use. At this time a determination shall be made as to whether the hoisting line shall be cut to bring a new line into the system, or replaced. In no event shall the hoisting line or sand line be allowed to remain in service when the following numbers of broken wires appear in any section of the line: TABLE 3 BROKEN WIRE-ROPE TABLE |
Construction | Number of Broken Wires In One Rope Lay | Number of Broken Wires In One Strand in One Lay |
6 x 7 | 7 | 3 |
6 x 19 Seale | 11 | 4 |
6 x 21 Seale or FW | 13 | 5 |
6 x 25 FW | 18 | 6 |
6 x 31 | 19 | 6 |
6 x 36 | 21 | 7 |
18 x 7 | 18 | 3 |
19 x 7 | 18 | 3 |
8 x 19 Seale | 16 | 4 |
8 x 25 FW | 25 | 6 |
4. In addition to the above criteria, a hoisting line or sand line shall be removed from service when any of the following conditions exist: a. When end connections are corroded, cracked, bent, worn, or improperly applied.b. When evidence of severe kinking, crushing, cutting, or unstranding are noted.Utah Admin. Code R614-2-12