CEMENTING JOB OVERVIEW 1. Preparing casing 1st a drilling mud is circulated down thru csng to condition & clean the well, usually done by rig. A pressure test is done by pumping unit, checking that there are no leaks in lines that connect pumping unit to well. Then 2 fluids: chemical wash & a spacer are pumped in.Chemical wash helps thin & disperse mud in wellbore & annulus (space b/w csng & formation). Spacer's job is to keep mud & slurry separated. • • • The wash & spacer may also be designed

Squeeze Cementing Represents a critical process in the oil and gas industry, where a cement slurry is squeezed through perforations in casing to create a seal in specific locations, bridging undesired gaps. It is a common misconception that the cement penetrates the pores of the rock. Instead, the cement slurry dehydrates against the formation walls, forming a seal cement filter cake. It must be clear that cement does not infiltrate the pores of the rock. Given that cement slurries have particle