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Publication numberUS1135809 A
Publication typeGrant
Publication dateApr 13, 1915
Publication numberUS 1135809 A, US 1135809A, US-A-1135809, US1135809 A, US1135809A
InventorsJones
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Well-strainer.
US 1135809 A
Images(1)
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Description  (OCR text may contain errors)

E. JONES.

WELL STRAINER.

APPLICATION FILED 1mm. I914.

Patented Apr. 13, 19115.

Inventor Attorneys Em: ironies, or LEXINGTON, TENNESSEE;

WELL-STRAINJER.

iatlfldfiuth.

' Application filed January 21,

To aZZ whom it may concern:

He it known that T, ELI JONES, a citizen of the United States, residing at Lexington,

in the county of Henderson and State of- Tennessee, have invented a new and useful Well-Strainer, .of which the following is a specification.

This invention relates to improvements in well strainers.

An object of the present invention is to provide a well strainer which may be easily and readily secured to the lower extremity of a well pipe or casing.

A further object is to provide a well strainer which is dropped down into the well casing or pipe after the latter has assumed its final position and with the result that the strainer will assume the desired position, in which position it may beheld by gravity or it may be wedgedly held in place by the inserting of a suitable cone shaped tool within the casing or pipe.

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, can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the drawings accompanying this specification and forming a part thereof, the preferred embodiment of my invention is illustrated, in which Figure 1 is a longitudinal sectional view of the lower extremity of a well casing pipe and with my improved strainer secured thereto. Fig. 2 is a cross sectional View taken on the line 22 of Fig. 1. Fig. 3 is a longitudinal sectional View of a somewhat modified form of strainer. Fig. 4 is a detail view of a somewhat modified form of ferrule. Fig. 5 is a cross sectional view taken Ion the line 55 of Fig. 4. Fig. 6 is a cross sectional view taken on the line 4-4 of Fig. 4. l

Referring to the drawings in which-similar reference numerals designate corresponding parts throughout the several views, 4 is the lower extremity of a well casing or pipe and is externally'threaded asrat 5 andupon which threaded extremity is positioned the strainer retaining member 6. 3

The strainer retaining member 6 is formed Specification of Letters Patent.

Patented Apr. 1L3, 194.5. 1914. Serial No. $13,554.

as an internally threaded sleeve which engages the threaded portion 5 of the pipe 4 and is provided with the inwardly pro ecting ledge 7 which is sloped or beveled as at 8 so that while the strainer is being dropped into position throughthe pipe, if the bottom of the strainer should hit upon the ledge 7 it will, by reason of the beveled portion 8, be guided centrally of and through the strainer retaining member.

The strainer is formed of a thin tube 9 which is provided with a plurality of longitudinal slots 10 and which slots are of limited length and are spaced in staggered relation so as to maintain a maximum strength. These slots 10 as illustrated in Fig. 2, are milled from the inside and taper in transverse cross section so that the slots enlarge as they extend through and inward of the side wall of the tube 9, thus preventing and eliminating all tendency for the slots to become choked and filled with foreign material during the actual use of the strainer. Rigidly secured to and forming a part of the strainer tube 9 is the upper strainer attaching member 11 which is of the nature of a ferrule and is preferably formed of some malleable metal, such as lead, so that the side walls may be expanded into forced contact with the side walls of the pipe 4.

' The strainer attaching member or ferrule includes the upper portion 12 which is provided with the beveled extremity 13 strainer retaining member upon which itrests. The strainer tube 9 extends over and forms a permanent portion of the lower or restricted end 14 of the ferrule and thus the connection between the tube and lower portion defines a shoulder 16 which serves as a ledge for a pair of grappling tongs 17 which are used when it is desired to withdraw the strainer from the pipe should the etedly secured to the extremity of the tube' or the end of the tube may be rounded as illustrated at,19 in Fig. 3. Thus when the strainer constructed as. above described, is

dropped into the pipe 4, it being noted that the pipe 4 is provided with the strainer retaining member 6 previously attached there to, the ferrule will seat on the beveled edge of the ledge 7 and prevent any foreign material from entering between the side walls of the strainer and the pipe. If it should be so desired, the side walls of the upper portion 12 ofthe ferrule may be expanded into forced contact with the walls 4: and if so expanded it will insure that the strainer will remain rigidly in place and effect a tight joint with the side walls of the pipe.

A further modification is. illustrated in Figs. 4,5 and 6, in which the lower restricted end of theferrule is provided with the inwardly extending beveled teeth or lugs 20, of which as illustrated in Fig. 5, there are two spaced at diametricpoints and between which is the recessed or enlarged portion 21. A cone 22 is provided with the outstanding lugs 23 which are adapted to fit within the recessed portion 21' when properly alined therewith, the cone being introduced and manipulated in the pipe by the rod 24. When it is desired to withdraw the strainer,

th 'cone is passed below the ferrule and rotated a quarter of a turn so that the outstanding lugs 23 will engage the lugs 20 for the withdrawing of the device; Mention is also made of the fact that this method may be used for lowering the strainer and ferrule into position.

Having thus fully described my lnvention what I claim as new is 1. The combination with a pipe with an externally threaded end, of a strainer retaining member threadedly engaging the same and provided with an inwardly ex- I tending annular beveled shoulder, a strainer attaching member including an upper cylindrical sleeve slidably contacting with the inner surface of said pipe, a lower restricted sleeve carried by said upper sleeve and joined thereto by a conlcal portion, said conical portion seating upon the annular beveled shoulder and guided into such relation by the sliding contact between the upper sleeve and the inner surface of said pipe,

tion by the sliding contact between the upper sleeve and the inner surface of said pipe, and a strainer tube disposed upon and exteriorly of the lower sleeve, whereby the lower edge of the sleeve defines a ledge to be engaged by a strainer withdrawing means. a

In'testimony that I claim the foregoing as my own, I have hereto afiixed' my signature in the presence of two witnesses.

r ELI JONES. Witnesses:

JNO. L. SULLIVAN, L. H. REEVES.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2927644 *Aug 6, 1956Mar 8, 1960Welex IncJunk basket
US3437135 *Jan 3, 1967Apr 8, 1969Phillips Petroleum CoRetrievable filter apparatus
US4619326 *Apr 19, 1985Oct 28, 1986Shell California Production Inc.Liner hanger with brass packer
US5348095 *Jun 7, 1993Sep 20, 1994Shell Oil CompanyMethod of creating a wellbore in an underground formation
US5366012 *Jun 7, 1993Nov 22, 1994Shell Oil CompanyMethod of completing an uncased section of a borehole
US5901789 *Nov 8, 1996May 11, 1999Shell Oil CompanyDeformable well screen
US6012522 *Jan 19, 1999Jan 11, 2000Shell Oil CompanyDeformable well screen
US6446724May 3, 2001Sep 10, 2002Baker Hughes IncorporatedHanging liners by pipe expansion
US6561271Mar 1, 2002May 13, 2003Baker Hughes IncorporatedHanging liners by pipe expansion
US6598677May 20, 1999Jul 29, 2003Baker Hughes IncorporatedHanging liners by pipe expansion
US6598685 *Feb 14, 2002Jul 29, 2003Benny Donald MashburnDrilling fluid screen and method
US6631765Nov 14, 2002Oct 14, 2003Baker Hughes IncorporatedHanging liners by pipe expansion
US6695054Dec 12, 2001Feb 24, 2004Schlumberger Technology CorporationExpandable sand screen and methods for use
US6910304Sep 3, 2002Jun 28, 2005Foster-Miller, Inc.Stiffener reinforced foldable member
US6915852Jul 24, 2003Jul 12, 2005Baker Hughes IncorporatedHanging liners by pipe expansion
US7134501Feb 11, 2004Nov 14, 2006Schlumberger Technology CorporationExpandable sand screen and methods for use
US7168485Jul 31, 2003Jan 30, 2007Schlumberger Technology CorporationExpandable systems that facilitate desired fluid flow
US7549486Nov 30, 2007Jun 23, 2009Benny Donald MashburnScreen apparatus and method
US7980330Jul 22, 2008Jul 19, 2011Lejeune Robert JWell tubular, retrievable joint strainer and method
US8074324Jul 15, 2004Dec 13, 2011Foster-Miller, Inc.Flexible, deployment rate damped hinge
US8230913Aug 13, 2010Jul 31, 2012Halliburton Energy Services, Inc.Expandable device for use in a well bore
WO2003069123A2 *Jan 29, 2003Aug 21, 2003Mashburn Benny DonaldDrilling fluid screen and method
Classifications
U.S. Classification166/195, 166/227, 166/203
International ClassificationE21B43/10
Cooperative ClassificationE21B43/103, E21B43/108
European ClassificationE21B43/10F3, E21B43/10F