In view of current disposal methods on the waste drilling mud in oil and gas fields, this paper introduced respectively the solidification, MTC (Mud to Cement), chemically enhanced solid-liquid separation (CESLS), and offshore waste drilling mud disposal.

And waste drilling mud can not be directly discharged into the surrounding environment.

Experiments of waste mud purification & consolidation method;

Treatment of waste mud from geotechnical engineering construction is an urgent problem for the civilization construction.

Based on the beaker mixed experiment on the treatment of the coagulant for drilling waste mud,we search for a perfect coagulant,through three factors research,which are the pH range?the effect of coagulation and sedimentation rate,then we analyze the main factor which influences the coagulant performance,consequently we gain the best dosge of the coagulant.