scope:

1 Scope

1.1 PURPOSE

The purpose of this specification is to provide standards for design, manufacture, and testing of hoisting equipment suitable for use in drilling and production operations.

1.2 EQUIPMENT COVERED

This specification covers the following drilling and production hoisting equipment:

a. Crown block sheaves and bearings.

b. Traveling blocks and hook blocks.

c. Block to hook adapters.

d. Connectors and link adapters.

e. Drilling hooks.

f. Tubing and sucker rod hooks.

g. Elevator links.

h. Casing, tubing, drill pipe, and drill collar elevators.

i. Sucker rod elevators.

j. Rotary swivel bail adapters.

k. Rotary swivels.

l. Power swivels.

m. Power subs.

n. Spiders, when capable of being used as elevators.

o. Wireline anchors.

p. Drill string motion compensators.

q. Kelly spinners when capable of being used as hoisting equipment.

r. Pressure vessels and piping mounted onto hoisting equipment.

s. Safety clamps, when capable of use as lifting devices.

Note: See Appendix D for guidance on design of guide dollies.

1.3 FUNCTIONAL AND OPERATIONAL REQUIREMENTS

Hoisting equipment shall be designed, manufactured, and tested such that it is in every respect fit for its intended purpose. The equipment shall safely transfer the load it is intended for. The equipment shall be designed for simple and safe operation.

1.4 PRODUCT SPECIFICATION LEVELS

This specification establishes requirements for two product specification levels. These two PSL designations define different levels of technical requirements. PSL 1 includes practices currently being implemented by a broad spectrum of the manufacturing industry. All the requirements of Sections 1 through 11 of this specification are applicable to PSL 1 unless specifically identified as PSL 2. PSL 2 includes all the requirements of PSL 1 plus additional practices currently being implemented by a broad spectrum of users.

1.5 SUPPLEMENTARY REQUIREMENTS

Supplementary requirements shall apply only when specified by the purchaser in the contract or order. Appendix A gives a number of standardized supplementary requirements.

1.6 METRIC CONVERSION

Metric conversions of SI units are provided in parentheses throughout the text of this specification, e.g., 6 inches (152.4 millimeters). Metric conversions of SI units are also included in all tables and figures. The factors used for conversion of Imperial units to metric values are given in Appendix B.