Hollow water distributor sealing device

Abstract

The invention relates to a hollow water distributor sealing device used in oil field water filling technique, which is mounted on common hollow water distributor or track hollow water distributor, wherein the invention is mainly formed by upper sealing element, sealing element, lower sealing element and core; the upper sealing element is inside the sealing element; the lower sealing element is on the sealing element; upper sealing element is above the through hole of sealing element, while the lower one is under the through hole; the core is not mounted with sealing element; when picking up core, the sealing elements do not move in the well, to avoid unreliable sealing problem. The invention can save cost and increase the water filling time.

Description

1. Technical field [0001] The hollow water distributor sealing device is a mechanical product used in the oil field water injection technology. 2. Background technology [0002] The seal between the existing water distributor and the core is to process the sealing ring groove on the outer cylindrical surface of the core, and then install the sealing ring in the sealing ring groove. Although the structure of this water distributor is simple, its reliability is poor. The core is put into the sealing body in the well from the ground, and it must be pulled out from the sealing body after use. During the fishing process, the core needs to travel several kilometers in the tubing, and the sealing ring installed on the core sealing ring groove is easy. Falling off, the patent number is: 02204656.9 water distributor core, although the falling off situation of the common core is less than that of the common core, there is still the problem of falling off. After the sealing ring falls...

AI Technical Summary

Problems solved by technology

[0002] The seal between the existing water distributor and the core is to process the sealing ring groove on the outer cylindrical surface of the core, and then install the sealing ring in the sealing ring groove. Although the structure of this water distributor is simple, its reliability is poor. The core is put into the sealing body in the well from the ground, and it must be pulled out from the sealing body after use. During the fishing process, the core needs to travel several kilometers in the tubing, and the sealing ring installed on the core sealing ring groove is easy. Falling off, the patent number is: 02204656.9 The core of the water distributor, although the falling off of the common core is less than that of the ordinary core, there is still a problem of falling off

After the sealing ring falls off, the core and the sealing body are not sealed, and layered water injection cannot be realized, and the water well distribution requirements cannot be met, which will affect the water injection in the oil field. , it is necessary to re-start the operation, increase the operation cost, and reduce the water injection time of the well

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