Bundled pipe wellhead multi-channel flow dividing device

Abstract

The invention provides a bundled pipe wellhead multi-channel flow dividing device. The device comprises an external four-way joint, a connector assembly, a left connector and a right connector; the external four-way joint comprises an upper connection port, a lower connection port, a left connection port and a right connection port, wherein a vertical channel is formed by the upper connection portand the lower connection port, and a horizontal channel is formed by the left connection port and the right connection port; the upper end of the connector assembly is located at the intersection ofthe vertical channel and the horizontal channel, a connecting channel is formed between the upper end of the connector assembly and the vertical channel, the lower end of the connector assembly is connected with a bundled pipe assembly, and the connector assembly is provided with a first pipeline and a second pipeline, wherein the first pipeline communicates with a first bundling channel, and thesecond pipeline communicates with a second bundling channel; the left connector is detachably arranged on the side wall of the upper end of the connector assembly and located at the left connection port, the left connector is provided with a first horizontal channel, and the first horizontal channel is connected with the first pipeline; and the right connector is detachably arranged on the side wall of the upper end of the connector assembly and located at the right connection port, the right connector is provided with a second horizontal channel, and the second horizontal channel is connectedwith the second pipeline.

Description

Technical field [0001] The invention relates to the field of oil and gas exploitation, in particular to a multi-channel shunting device at the wellhead of a cluster pipe. technical background [0002] At present, for a well containing multi-layer sandstone or coal seam, the main mining methods at home and abroad are multi-layer commingled mining and multi-channel mining in the same well, among which multi-layer commingled mining is suitable for direct commingled mining of multiple reservoirs with similar pressure coefficients and storage properties, and multi-channel mining in the same well is mainly suitable for separate mining of multiple reservoirs with different pressure systems. However, for the strata containing sandstone gas and coalbed methane in the same area, because of their different pressure systems and physical properties, the main mining method is to use two wells to mine separately, and this mining method has high production cost and a large area. At present, ther...

AI Technical Summary

Problems solved by technology

For formations containing sandstone gas and coalbed methane in the same area, due to the large difference in pressure systems and physical properties of the two, the main mining method is to use two wells to mine separately, and this mining method produces Higher cost and larger floor space

At present, there is no precedent for the co-production of sandstone gas and coalbed methane in the same well

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