FloSTOP Anti-Gas Channeling Cement Slurry

n  Technical Introduction

    Developed specifically for gas well cementing operations, FloSTOP is an anti-gas channeling cement slurry system. Comprising polymer fluid loss reducer, latex anti-gas channeling agent, nano-silicon reinforcing agent, dispersant, retarder, and other components, this system aims to address gas channeling issues during cementing. The design leverages the characteristics of latex particles for filling, film-forming, and coating to enhance cement slurry's gas invasion resistance. Additionally, the inclusion of nano-silicon reinforcing agent compensates for any reduction in cement stone strength caused by latex, ensuring optimal compressive strength. Suitable for temperatures ranging from 30 to 230 ℃, when paired with a dual-effect pre-fluid system, FloSTOP guarantees high-quality cementing.

n  Technical Features

    ( 1 )   Suitable for high temperature and high pressure well cementing;

    ( 2 )   Good anti-channeling effect;

    ( 3 )   Cement slurry has good rheology and high strength.

n  Main Components of FloSTOP

    ( 1 ) Polymer fluid loss agent (HF-A), recommended dosage: solid type 1.2-2.5%; Liquid type: 6-10%;

    ( 2 ) Nano silicon reinforcing agent (NS-R), recommended dosage: liquid type: 1-6%;

    ( 3 ) Polymer retarder (PR-2), added as needed;

    ( 4 ) Formaldehyde acetone or polyacrylate dispersant (FA-P), recommended dosage: solid type 0.5-1.5%; Liquid type: 0.2-3%;

    ( 5 ) Latex anti gas channeling agent (LAC-2), recommended dosage: liquid type: 5-20%. 

n  Key Technical Indicators

n  Application

    Primarily employed for cementing operations in natural gas and shale gas wells across PetroChina, Sinopec, and CNOOC, along with certain gas storage well cementing projects. With over 1000 successful on-site applications, FloSTOP has demonstrated its effectiveness and reliability in the field.