a bridge screen

Abstract

The invention relates to the technical field of oil exploitation equipment accessories, and discloses a bridge type screen pipe. A lower connecting barrel seat is horizontally placed on the lower portion of an upper connecting barrel seat, a cylindrical screen pipe group is clamped between the upper connecting barrel seat and the lower connecting barrel seat, the surface of the cylindrical screenpipe group is provided with a sand-proof sieve hole, a limiting screw member is further longitudinally connected between the upper connecting barrel seat and the lower connecting barrel seat, clampingring grooves are formed in the corresponding positions of the lower surface of an upper limiting pressing plate and the upper surface of a lower limiting pressing plate, and the cylindrical screen pipe group includes single screen pipe, wherein the number of the single screen pipes is no less than two. A combined installation form is adopted, the upper connecting barrel seat and the lower connecting barrel seat are matched with the limiting screw member, thereby facilitating the limiting fixation of the sleeve type multi-layer screen pipes; the form of installing the multi-layer screen pipesenables the oil body sand-proof processing operation to be effectively performed, so that a screen pipe part is more convenient to replace and dismantle, and screen pipe parts of different sieve holemesh sizes and different sieve hole shapes can be installed in a combined mode according to the sand-proof treatment requirements for oil bodies.

Description

technical field [0001] The invention relates to the technical field of oil exploitation equipment accessories, in particular to a bridge screen. Background technique [0002] Oil extraction refers to the act of digging and extracting oil in places where oil is stored. In the process of oil extraction, oil and gas flow from the reservoir to the bottom of the well, and then rise from the bottom of the well to the wellhead. Oil extraction requires oil extraction equipment, and oil screen is a common spare part for oil extraction equipment. The main function of oil screens is sand control. The steel grades and types of screens used in oil screens are different in different geological environments (different lithology). In oil drilling and production operations, screen pipe is an important equipment, and it is often used for pre-completion or oil production for sand control. [0003] The bridge screen is a common screen component for sand control in oil production. At present,...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a bridge-type screen, which has the advantages of multi-stage screening, convenient disassembly and replacement, and solves the problem that the existing bridge-type screen only has a single-layer filter surface, and the screen hole The shape is single, and the combined multi-layer and multi-level socket installation cannot be carried out according to the work requirements. The structure is complex and inconvenient to disassemble and replace, and it cannot meet the work requirements of the screen pipe in the sand control work of oil production.

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