Liquid Cement Premix for Improved Abandonment and Workover Operations

Gulf of Mexico Cement Packer Completions Using Liquid Cement Premix

“…Liquid Cement Premix can be defined as a unique pre-mixed blend that, unlike conventional cement slurries, is storable and may be kept on-site in a liquid state for a period of several days or weeks prior to use (8,10,11) . The LCP base slurry is a mixture of Portland cement, water, a set retarder, a plasticizer and a suspending agent.…”

“…The LCP base slurry is a mixture of Portland cement, water, a set retarder, a plasticizer and a suspending agent. The set retarder slows hydration at ambient storage temperatures, the plasticizer inhibits gelation by minimizing inter-particle attraction, and the suspending agent provides stability during storage (9,10,11) .…”

“…The combination of set retarding and conditioning agents slows the forward hydration reaction to an imperceptible level (11) . The longterm hydration delay allows the LCP to be transported and stored, in a liquid state.…”

“…LCP, as opposed to conventional cement, provides operators flexibility and mobility on location (10,11) . The LCP is delivered to location in stainless steel marine portable tanks (MPT) at a constant base density, which eliminates the mixing concerns of "on-the-fly" or extra equipment for batch mixing.…”