By Lecourtier, Jacqueline; Cartalos, Ulysse (Eds.)
Cementing is a tricky operation and the standard of the outcome will depend on many components linked to: the kingdom of the open gap part; the gear and fabrics hired; the fluids used; the techniques utilized. This record offers an replace of the data and suggestions on tools and strategies to be utilized on the good website.
desk of Contents
1. Drawing Up the Cementing software
2. varieties of Cementing
three. environment Cement Plugs to wrestle misplaced stream
four. explanations of Failure in Casing Cement Jobs and treatments
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Additional info for Cementing Technology and Procedures
If string movement is planned, it should be started during circulation. Any reciprocating movement opposite a gas zone should only take place during circulation.
The equipment must be in perfect working order (spare parts) and adapted to the planned job. RECIRCULATING MIXING TANKS (RCMT) AND THE LIQUID ADDITIVES SYSTEM (LAS) Operating tests should be run with water. Solid additives are currently more popular, because they are cheaper and have a longer shelf life. The liquid additives system (LAS) should not make it necessary to release one or two tanks of their drilling fluid to prepare the slurry mix water. Care must be taken to avoid relative inaccuracy in batching the additives due to the use of the LAS.
The plug dropping system and the manifold valves must be easy to handle. The length of the chicksans must be such that at least one pipe can be lifted easily above the rotary table. CASING RUNNING EQUIPMENT Elevators, slips and slings must be adapted to the casing. They have to support the string and the frictional forces. The personnel must be present on the well site a few days before running the casing in order to check and prepare the equipment. Spare parts should be available for all the equipment (especially tong dies and a torque indicator).