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Sand screen

a technology of sand screen and sand filter, which is applied in the direction of fluid removal, earthwork drilling and mining, and wellbore/well accessories, etc. it can solve the problems of increasing the probability of cave in, adversely affecting other equipment such as pumps, and affecting the safety of workers

Inactive Publication Date: 2017-02-23
BAKER HUGHES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a cartridge or a safeguard system for filtering sand. The cartridge has a long tubular screen made up of multiple segments that form a tight filter for sand. It is designed to be attached to a base pipe to form a continuous filtration system. The cartridge also includes a special end ring that is attached to the screen and the base pipe, providing a secure and tight connection. This invention helps to prevent damage to equipment and people caused by sand or other debris in construction and drilling operations.

Problems solved by technology

This is because flowing sand is damaging to production equipment from the standpoint of erosion and further because it can adversely affect other equipment such as pumps, etc.
Also notable is that the production of sand from the formation in which a borehole exists will tend to enlarge the borehole and increase the probability of cave ins, wash outs, etc., that would require remedial activity at not insignificant cost both in actual dollars and in lost production time.

Method used

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Embodiment Construction

[0014]A detailed description of one or more embodiments of the disclosed apparatus and method are presented herein by way of exemplification and not limitation with reference to the Figures.

[0015]Referring to FIG. 1, a single segment 10 is illustrated and may be a stave. In some embodiments the segments are constructed of hard erosion resistant material and may be a ceramic material. Other hard metal or plastic is also contemplated. In addition, the segments may be created from composites of the foregoing. For example, in some embodiments, the segment 10 may comprise a metal core 11 and an exterior material 13, such as for example a ceramic coating (see FIG. 1A). If indeed a ceramic material is selected for any type of embodiment referenced above, the material may comprise for example Sintered Boron Carbide, Silicon Carbide, Alumina, etc. The segments may be constructed of any length limited only by practicality but in some embodiments will be 6 to 15 inches in length.

[0016]Still re...

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PUM

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Abstract

A sand screen cartridge including a plurality of longitudinally extending segments together forming a tubular filtration media. An end ring engaging the filtration media.

Description

BACKGROUND[0001]In the drilling and completion industry, the formation of boreholes for the purpose of recovering hydrocarbons necessarily is accompanied by sand. Sand control therefore is a significant concern for operators and must be addressed in the downhole environment prior to its production with target fluids. This is because flowing sand is damaging to production equipment from the standpoint of erosion and further because it can adversely affect other equipment such as pumps, etc. Also notable is that the production of sand from the formation in which a borehole exists will tend to enlarge the borehole and increase the probability of cave ins, wash outs, etc., that would require remedial activity at not insignificant cost both in actual dollars and in lost production time.[0002]The art is therefore very concerned with sand control and has developed a plethora of types of sand screen and such to mitigate the problem. In view of ever changing conditions and techniques however...

Claims

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Application Information

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IPC IPC(8): E21B43/08
CPCE21B43/086
Inventor MANN, CHANCE ETHANGUEST, RANDALLRICHARD, BENNETT
Owner BAKER HUGHES INC