Separation Device

A device for separating oilfield produced liquid, which contains an oil phase, a suspended solid phase, and an aqueous phase, including:

• an approximately cylindrical housing;
• multiple pairs of longitudinal baffle plates which are arranged along a longitudinal direction of the housing;
• a flow channel used for flow of the fluid and formed between every pair of longitudinal baffle plates;
• and
• collection chambers formed between adjacent pairs of longitudinal baffle plates and formed between the longitudinal baffle plate and an inner wall of the housing, each collection chamber being provided therein with multiple transverse baffle plates spaced apart along the longitudinal direction, so as to separate the collection chamber into multiple oil phase collection cells and suspended solid phase collection cells that are arranged alternately along the longitudinal direction,
• wherein each flow channel is provided therein with multiple lateral baffle plates which are arranged in an inclined manner with respect to the longitudinal baffle plates, so as to separate the flow channel into multiple sub-channels which are arranged vertically, each sub-channel having a cross-sectional shape of a triangle, and
• in an area of each longitudinal baffle plate where the oil phase collection cell is located, an oil phase guiding hole in communication with the oil phase collection cell is arranged on the longitudinal baffle plate at a position corresponding to the geometric highest point of the triangle, and in an area of each longitudinal baffle plate where the suspended solid phase collection cell is located, a suspended solid phase guiding hole in communication with the suspended solid phase collection cell is arranged on the longitudinal baffle plate at a position corresponding to the geometric lowest point of the triangle.