A shale gas sand removal and separation device

Abstract

The invention provides a shale gas desanding and separating device, comprising: a filter chamber, a main flow pipe is arranged on one side wall of the filter chamber; A filter plate is set; the sand discharge bin is set on one side of the filter chamber, and a movable door is set between the filter chamber; the sand pushing mechanism is set in the filter chamber, and the sand pushing mechanism can push the filter plate The solid phase of formation sand deposited on the top is pushed into the sand discharge bin; as the multiphase fluid containing shale gas enters the filter chamber through the main flow pipe, the solid phase of formation sand in the multiphase fluid is deposited on the filter plate to form The sand layer, and the rest of the fluid phase enters the collecting chamber through the sand layer and the filter plate. The device solves the problem that the desanding effect of the existing desanding and separating equipment is not ideal, and the deposited formation sand solid particles easily block the filter layer and affect the filtering and separating effect of the fluid.

Description

technical field [0001] The invention relates to the technical field of shale gas screening, in particular to a shale gas sand removal and separation device. Background technique [0002] Shale gas is natural gas directly stored in shale formations, and its main component is methane, which is a recoverable natural gas resource. The exploitation of shale gas mainly uses a large amount of water to pour into the shale formation for hydraulic fracture, so that the natural gas stored in the shale formation can be released. However, in the process of shale gas production, some formation sand is carried in the fluid, so that the fluid presents a multiphase flow state. In the multiphase fluid containing shale gas, because the formation sand solid phase is carried out of the ground along with the air flow, it will cause different degrees of damage to the ground mining equipment, and even easily cause engineering accidents, and will reduce the working efficiency of shale gas mining. ...

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Problems solved by technology

[0004] In order to solve the above problems, the object of the present invention is to provide a shale gas sand removal and separation device, which solves the problem that the sand removal effect of the existing sand removal and separation equipment is not ideal, and the deposited formation sand solid particles are easy to cause damage to the filter layer. Blockage, the problem that affects the filtration and separation effect of fluid

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