API RP 15TL 4:1999 (R2013)

The purpose of this publication is to provide information on the transporting, handling, installing, and reconditioning of fiberglass tubulars in oilfield usage. Note: No provision of this Recommended Practice shall be cause for rejection of fiberglass tubulars provided the threads are in accordance with the requirements of the applicable product specification. Trouble-free service and maximum safety should result if this Recommended Practice is followed. Fiberglass tubulars differ in properties from metallic tubular goods and different installation techniques are required. Note: These recommendations are applicable to normal situations. Exceptional conditions may warrant different practices. It is not intended that these practices conflict with any regulatory code. It is suggested that the selection of thread compound be given careful consideration by the user bearing in mind that a satisfactory compound should possess certain properties, the major of which are (1) to lubricate the thread surfaces to facilitate joint make up and break out without galling and (2) to seal voids between mating thread surfaces and effectively prevent leakage. Thread compounds have a significant impact on the performance of tubulars, especially under combined loading conditions. The manufacturer's recommended thread compound, which has been qualified in accord with the API product specification, should be used. CAUTION: The material safety data sheets for thread compounds should be read and observed. Store and dispose of containers and unused compound in accord with appropriate regulations.