A fluid caliper is a survey to pre-determine the volume requirements for any selective cementing job. We will give you accurate information, already computed into cubic feet, without lost rig time! By running a fluid caliper we can give you the annular volume to: •Circulate cement behind casing •Cement to any desired height between the casing and wellbore •Circulate cement between stage collars •Circulate a liner We insert a colored marker in our flow meter and connect it to the vibrating hose at the discharge end of your mud pump. While you resume normal drilling, or circulate to condition the well bore before running casing, we perform our survey. Our highly accurate electronic totalizer gives us positive readings already converted into cubic feet. The initial marker that is det