Water injection well integrated throwing-fishing-free working barrel convenient for rapid butt joint

Abstract

The invention discloses a water injection well integrated throwing-fishing-free working barrel convenient for rapid butt joint. The water injection well integrated throwing-fishing-free working barrel comprises a working barrel body and a main flow pipeline fixedly mounted in the working barrel body; flow dividing channels are formed in the upper end and the lower end of the main flow pipeline; the working barrel further comprises partition plates installed on the outer side of the main flow pipeline, inner water outlet holes are formed in the outer side of the lower end of the main flow pipeline at equal intervals, the partition plates and the flow dividing channels are arranged in a staggered mode, outer water outlet holes are transversely formed in the outer side of the lower end of the working barrel body at equal intervals, and connecting holes are transversely formed in the outer side of the upper end of the working barrel body at equal intervals. According to the water injection well integrated throwing-fishing-free working barrel facilitating quick butt joint, the connecting plates and the protruding blocks are installed, the connecting plates rotate in the connecting grooves, so that the protruding blocks on the outer sides of the connecting plates rotate into the clamping grooves from the interiors of the sliding grooves, and therefore clamping butt joint between the working barrel bodies is facilitated, and only one-point rotation is needed; and rapid butt joint and later dismounting work are facilitated.

Description

technical field [0001] The invention relates to the technical field of a water injection well integrated casting-free and fishing-free working cylinder, in particular to a water-injecting well integrated casting-free fishing working cylinder that is convenient for quick docking. Background technique [0002] In the middle and late stages of oilfield development, due to the reduction of formation energy, layered water injection plays a vital role in improving the effect of oilfield development. When oilfield water injection is carried out, although co-injection technology can meet the technological requirements of water injection to maintain formation pressure, However, due to the strong heterogeneity of oil layers in some blocks and well groups, the injected water may intrude along fractures or a single layer in the high-permeability zone during general water injection, while the low-permeability and thin layers fail to exert their due potential, making the layer Internal, i...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a water injection well integrated no-fishing mandrel that is convenient for rapid docking, to solve the problem that the work barrels on the market currently on the market are mostly connected by threaded connections, so that the docking operation It is cumbersome and needs to be rotated multiple times. At the same time, the disassembly work in the later stage is also cumbersome. Most of the existing working cylinders use packers to seal and separate layers. However, because the volume and size of the packers are fixed, it is not only inconvenient It is not convenient to install to meet different usage needs in the later stage

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