US1979740A - Well strainer - Google Patents

Well strainer Download PDF

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Publication number
US1979740A
US1979740A US679547A US67954733A US1979740A US 1979740 A US1979740 A US 1979740A US 679547 A US679547 A US 679547A US 67954733 A US67954733 A US 67954733A US 1979740 A US1979740 A US 1979740A
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United States
Prior art keywords
bars
body portion
strainer
passageways
openings
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Expired - Lifetime
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US679547A
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Hamm Daniel Jefferson
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Individual
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Individual
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Priority to US679547A priority Critical patent/US1979740A/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/08—Screens or liners
    • E21B43/086—Screens with preformed openings, e.g. slotted liners

Definitions

  • This invention relates to strainers designed for use at the lower ends of driven well tubes, the primary object of the invention being to provide a strainer which will not clog, and one which may be rotated while the strainer is being positioned.
  • a further object of the invention is the provision of a strainer wherein the outer wall and ends thereof present smooth surfaces to the end that the tube with its strainer may be readily and easily removed.
  • a still further object of the invention is the provision of a screen or strainer which will not lose its gauge when pressure is applied, with the result that the strainer or screen may be readily cleaned of all foreign matter.
  • Figure l is an elevational view of a well strainer constructed'in accordance withthe invention, a portion thereof being shown in section.
  • Figure 2 is a sectional view taken on line 2-2 of Figure 1.
  • Figure 3 is a sectional view taken on line 33 of Figure 1.
  • the device comprises a body portion 5 which is in the form of a length of pipe, the upper end thereof being threaded as at 6, the lower end of the pipe being threaded as at 7.
  • a plurality of openings indicated at 8 are a plurality of openings indicated at 8, the openings being disposed in spaced relation with each other, and arranged in rows, the number of openings being regulated by the size of the pipe or body portion 5.
  • bars 9 Secured to the body portion 5, and extended longitudinally thereof are spaced bars 9, which bars have their inner edges beveled as at 10, throughout portions of their widths, providing passageways with wide inner portions, which act to free material, that may find its way into the body portion 5, through the passageways, thereby insuring against the passageways becoming clogged to defeat the purpose of the invention.
  • the passageways formed between adjacent bars 9, are so arranged that they overlie the openings 8, with the result that material passing through the passageways may pass into the body portion 5, through the openings 8.
  • the reference character 12 designates an upper ring member, that is of a width to cover the upper ends of the bars 9, while the lower ends of the bars 9 are covered and protected, by means of the ring member 13, the ring members being secured in any suitable manner.
  • the body portion is secured to the well tubing at a point near the lower end thereof, the ends of the body portion being threaded to cooperate with threads of the well tubing as clearly shown by the drawing.
  • a strainer for driven well tubes comprising a cylindrical pipe section having threaded ends, said pipe section having vertically extending elongated openings therein disposed in spaced vertical rows around the pipe and in spaced relation with each other in the row, an outer casing embodying a plurality of parallel vertical bars disposed exteriorly of the pipe section, said bars being spaced apart and their inner edges being beveled to provide elongated passageways widening inwardly, the passageways formed by the bars being disposed over the adjacent elongated openings, and in the same axial planes, and means for securing the bars to the pipe section.

Description

D. J. HAMM WELL STRAINER Nov. 6, 1934.
Filed July 8, 1933 3nventor j. Jfflarrmz \lflLy Patented Nov. 6, 1934 T A T if PATENT OFFICE 1 Claim.
This invention relates to strainers designed for use at the lower ends of driven weil tubes, the primary object of the invention being to provide a strainer which will not clog, and one which may be rotated while the strainer is being positioned.
A further object of the invention is the provision of a strainer wherein the outer wall and ends thereof present smooth surfaces to the end that the tube with its strainer may be readily and easily removed.
A still further object of the invention is the provision of a screen or strainer which will not lose its gauge when pressure is applied, with the result that the strainer or screen may be readily cleaned of all foreign matter.
With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of What is claimed, without departing from the spirit of the invention.
Referring to the drawing:
Figure l is an elevational view of a well strainer constructed'in accordance withthe invention, a portion thereof being shown in section.
Figure 2 is a sectional view taken on line 2-2 of Figure 1.
Figure 3 is a sectional view taken on line 33 of Figure 1.
Referring to the drawing in detail, the device comprises a body portion 5 which is in the form of a length of pipe, the upper end thereof being threaded as at 6, the lower end of the pipe being threaded as at 7.
Formed in the body portion 5, are a plurality of openings indicated at 8, the openings being disposed in spaced relation with each other, and arranged in rows, the number of openings being regulated by the size of the pipe or body portion 5.
Secured to the body portion 5, and extended longitudinally thereof are spaced bars 9, which bars have their inner edges beveled as at 10, throughout portions of their widths, providing passageways with wide inner portions, which act to free material, that may find its way into the body portion 5, through the passageways, thereby insuring against the passageways becoming clogged to defeat the purpose of the invention.
These bars 9 are secured to the body portion 5, by means of rivets 11, however it is to be understood that these bars may be secured to the body portion, in any suitable manner.
The passageways formed between adjacent bars 9, are so arranged that they overlie the openings 8, with the result that material passing through the passageways may pass into the body portion 5, through the openings 8.
The reference character 12 designates an upper ring member, that is of a width to cover the upper ends of the bars 9, while the lower ends of the bars 9 are covered and protected, by means of the ring member 13, the ring members being secured in any suitable manner.
In the use of the device, the body portion is secured to the well tubing at a point near the lower end thereof, the ends of the body portion being threaded to cooperate with threads of the well tubing as clearly shown by the drawing.
It will of course be understood that the inner surfaces of the bars 9 rest against the body portion 5, where they are held in close engagement with the body portion 5, by the securing means.
Having thus described the invention what is claimed is:
A strainer for driven well tubes, comprising a cylindrical pipe section having threaded ends, said pipe section having vertically extending elongated openings therein disposed in spaced vertical rows around the pipe and in spaced relation with each other in the row, an outer casing embodying a plurality of parallel vertical bars disposed exteriorly of the pipe section, said bars being spaced apart and their inner edges being beveled to provide elongated passageways widening inwardly, the passageways formed by the bars being disposed over the adjacent elongated openings, and in the same axial planes, and means for securing the bars to the pipe section.
DANIEL JEFFERSON HAMM.
US679547A 1933-07-08 1933-07-08 Well strainer Expired - Lifetime US1979740A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US679547A US1979740A (en) 1933-07-08 1933-07-08 Well strainer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US679547A US1979740A (en) 1933-07-08 1933-07-08 Well strainer

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US1979740A true US1979740A (en) 1934-11-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417152A (en) * 1944-03-14 1947-03-11 Bessie May Collins Oil well screen
US4599172A (en) * 1984-12-24 1986-07-08 Gardes Robert A Flow line filter apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417152A (en) * 1944-03-14 1947-03-11 Bessie May Collins Oil well screen
US4599172A (en) * 1984-12-24 1986-07-08 Gardes Robert A Flow line filter apparatus

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