Throughout the industry's history, successful liner cementing is one of the most difficult operations associated with drilling and completing of oil and gas wells. When utilizing liner rotation while cementing with proper displacement mechanics, it is possible to obtain an optimum liner cement job. Employing recent tool development and cementing techniques with proper displacement mechanics will result in more successful primary liner cement jobs. This paper presents an improved liner cementing technique. State of the art equipment, its historic development, design, and recommended procedures are discussed. Theory, test results, and field experience of displacement mechanics are combined to illustrate the relative importance of proper planning to displace drilling mud from the annulus.

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