Mud Lost of Drilling Fluids Shale Shaker

• Sep 10, 2014
• Drilling fluids are mainly applied in oil or gas drilling which is a kind of colloidal suspension composed of clay, water, oil and chemical mixture....

Drilling fluids are mainly applied in oil or gas drilling which is a kind of colloidal suspension composed of clay, water, oil and chemical mixture. In the fluids, particle diameter is less than 2 microns, therefore, shale shaker is widely used in the production process while drilling fluids shale shaker is naturally used in oil or gas drilling fields. This essay is going to analyze the common fault of shale shaker and solutions to overcome this fault in the process of oil drilling.

For oil drilling industries, mud lost has been the headache problem in the process of shale shaker, which is common and difficult to avoid during the drilling production.

What caused the mud lost?
Generally, there are the following three causes resulting in mud lost

                                                       1/ Material problems.
High viscosity of the drilling mud, high proportion of solid phase particles or dispersive drilling cuttings
                                                       2/Screen machine problems.
Low vibration of shale shaker, high number of screen mesh and small screening area
                                                       3/ Assembly problems. In appropriate installation of the feed inlet of shale shaker.

Solutions to resolve the problem
According to the above simple analysis, we can find that the reasons for mud lost is multiple and next ,we will focus on the solutions to resolve this problem. However, we should exclude faults in accordance with the following steps.

                                                           1/ Check whether the screen mesh is fit for the shale shaker or not
                                                           2/Check if drilling mud property matches the drilling condition.
                                                           3/Check if the rotation direction of the motor is correct.
                                                           4/Check whether the amplitude of the shale shaker is low or not
                                                           5/Check whether the flowing direction of the drilling mud is correct or not.

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