API RP 64:2001(R2012) pdf download.Recommended Practice for Diverter Systems Equipment and Operations
1.1 PURPOSE
This recommended practice (RP) is intended to provide accurate information that can serve as a guide for selection, installation, testing, and operation of diverter equipment sys- tems on land and marine drilling rigs (barge, platform, bottom- supported, and floating). Diverter systems are composed of all subsystems required to operate the diverter under varying rig and well conditions. A general description of operational pro- cedures is presented with suggestions for the training of rig personnel in the proper use, care, and maintenance of diverter systems.
1.2 WELL CONTROL
Opinions differ throughout the drilling industry concerning well control involving shallow gas. Appendix A of this publi- cation is intended to provide some technical understanding of what takes place when shallow gas is drilled and to promote a better understanding of the analysis technique fundamentals. This publication, API RP 64, serves as a companion to RP 59 Recommended Practice for Well Control Operations and RP 53 Recommended Practice for Blowout Prevention Equip- ment Systems for Drilling Wells . RP 59 establishes recom- mended operations to retain pressure control of the well under pre-kick conditions and recommended practices to be utilized during a kick. RP 53 establishes recommended prac- tices for the installation and testing of equipment for the anticipated well conditions and service.
4 Diverter Systems
4.1 PURPOSE
A diverter system is often used during top-hole drilling and in conjunction with marine riser systems. The diverter system is not intended to shut-in or halt well flow, rather it provides a low-pressure flow control system to direct controlled or uncontrolled wellbore fluids away from the immediate drill- ing area for the safety of personnel and equipment. Although there are other uses, the diverter system is primarily used for the potentially hazardous flows that can experienced prior to setting the casing string on which the BOP stack and choke manifold will be installed. Diversion of the flow away from the rig usually results in loss of drilling fluid from the system. Under these conditions, formation fluid flow continues during the well control operation until the hole bridges or hydrostatic pressure can be built enough to regain primary control and stop formation fluid flow (refer to API RP 59).
API RP 64:2001(R2012) pdf download
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