Three factors that determine the efficiency of drilling mud shaker

In the oil drilling process, the drilling fluid returned from the well passes through the mud shaker, and then enters other solids control equipment. Among the solid phase removal equipment, the mud shaker itself is a filterable mud-water separation device, which is used in the complete mud cleaning. In the system, it has the characteristics of first and fast separation of the solid phase of the drilling fluid, and it is also an economical and high-efficiency mud-water separation equipment.

Vibration form of mud shale shaker

There are three types of motion forms of the mud shale shaker: circular, elliptical and linear motion. The vibrator will produce circular motion at the center of gravity; the vibrator will produce elliptical motion above the center of gravity of the system, but for the elliptical Movement, in order to facilitate the transportation of drill cuttings, the screen surface must have an inclination, but it will reduce its screen capacity. The linear motion is to place the vibrator above the center of gravity of the system to make the screen frame move in a straight line, thereby removing the solid phase. The linear motion of the vibrating screen has a fixed drill cuttings conveying speed, and the screen surface can be flat or slightly inclined.

Amplitude and frequency of mud shale shaker

The capacity of the shale shaker depends on three parameters: amplitude, vibration form and vibrator rotation speed. The rotation speed of the vibrator determines the vibration frequency of the mud shale shaker. The higher the vibration frequency, the better the solid phase removal effect! Generally, the vibration frequency of domestic high-frequency shale shaker is about 2000 times/min.

The amplitude of the shale shaker is determined by the mass and eccentricity of the vibrator. The so-called amplitude refers to the distance of the vertical movement of the shale shaker. The vibration intensity refers to the multiple of the centrifugal acceleration generated by the vibrator of the shale shaker relative to the acceleration of gravity. The size of the force that the net acts on the solid particles. Theoretically, the greater the vibration amplitude of the shale shaker, the better the de-sanding effect. However, as the vibration intensity increases, the force on the shale shaker will also increase and the life of the shale shaker will be shortened. Therefore, it is necessary to design and use Considering. Most circular motion shale shaker have an acceleration of 4-6 times g, and most linear motion shale shaker have an acceleration of 3-4 times g.

The mesh material and mesh of the mud shale shaker

The screen of the mud shale shaker separates the mud pumped from the mud pump by vibration. The mud shale shaker has multiple screens. In a shale shaker with 2-3 screen cloths, the drilling fluid must pass through the first screen and then enter the second screen, and so on. Screen-Shale Shaker is the main method of solid phase separation. If the shale shaker is used unreasonably or the size of the screen is inappropriate or torn, the efficiency of solid phase separation will drop sharply. If the screen is installed improperly and has insufficient support, or is of poor quality, the screen will soon be worn or torn. Therefore, when choosing a screen, a number of comparisons of materials must be carried out!