US1510581A - Washing tool - Google Patents

Description

Get. A924.

A. BOYNTON WASHING TOOL Filed March 23 19,23

ATTORNEYS.

Patented Oct.' 7, 1924.

stare ALEXANDER BOYNTON, .OF SAN ANTONIO, TEXAS.

WASHING TOOL.

Application filed March 23, 1923. Serial No. 627,195.

T all whom t may concer/n.'

Be it known that I, ALEXANDER BoYNToN, a citizen of the lUnited States, and resident of San Antonio, in the county of Bexar and State of Texas, have invented certain new and useful Improvements in Washing Tools, of which the following is a specification.

This invention relates to washing tools especially adapted for use in deep wells.

An important object of this invention is to provide a washing tool of the character specified having simple and reliable means to direct strong jets of water through the perforated liner of a well for thoroughly washing and cleansing the exterior of the liner and the producing strata.

Further the invention forming the subject matter of this application aims to provide a lwashing tool for wells which is of highly simplified construction, simple to assemble and cheap to manufacture. V

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawing forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of the improved tool, and

Figure 2 is a sectional perspective of the same.

In the drawing wherein for the purpose ofillustration is shown a preferred embodimeiit of the invention the numeral 5 generally designates a tubular body which is attached to the lower portion of the wash pipe by means of an attaching nipple 6 forming a part of thel body.

The tubular body consists principally of an intermediate tubular section having 'its terminal portions interiorly screw threaded for the reception of the threaded ends of upper'and lower end sections 9 and 10 respectively. In carrying out the invention the lower portion of the lower tubular section 10 is exteriorly threaded for engagement with the internal threads on a closure 12.

The ends of the intermediate section 8 and the inner ends of the members 6 and .12 form pairs of spaced annular shoulders betweei: which packer rings 14 of annular formation are confined. The packer rings surround the upper and lower end sections 9 and 10 respectively and are securely and positively held in position by tightening of the attaching nipple 6 and the closure 12.

The tightening ofthe rings'14may also be brought about by threading the upper and lower sections 9 and 10 respectively farther into the intermediate tubular section 8. Clamping rings 16 are located between the packers 14 and the said annular shoulders and serve to prevent the annular shoulders and more specifically the ends of the sec* tions 8, 6 and 12 from mutilating the pack ers as the result of direct rotating engagement with the same.

The clamping rings 16 may be of metal or other suitable material and extend beyond the peripheries of the attaching nipple 6 and the closure 12.,

In carrying out the invention the intermediate tubular section 8 is formed with a series of discharge jets 22 through which a powerful jet of pumped water is discharged from a. pump located exteriorly of the well which pumps the water through the wash pige and through the tool.

he water thusdischarged under pressure through the perforations 22 is trapped or confined between the upper and lower packers 14 and is therefore forced through the liner perforations between the upper and lower packers 14. As the aggregate area of the perforations 22 is greater than the aggregate area of the perforations in the liner between the upper and lower tiers of packers a powerful jet of water is forced through the perforations in the liner, thereby bringing about the thorough cleaning and washing of the walls of the well.

Also the device may be used as a washing tool without pressure from a pump, by rapidly raising the wash pipe and the tool, whereupon the wash water is forced out with great force through the perforations 22 against the wall of the well.

Furthermore the device may be used as a swab by screwing an imperforate nipple or section in place of the section 8 and rapidly raising the wash pipe in whichl event the water from above the washing tool is forced to go out through the perforations in the liner and back into the liner through perforations below the tooi., thus creating a violent wash on the outside of the liner opposite the washing tool as it moves upward or downward, all of which contriblOO utes to the thorough cleaning of the exproducing strata( CilA Having thus described the invention, what is claimed is l. A liner and formation washing tool for wells comprising a tubular body inclusive of a perforated intermediate. section and upper and lower tubular end' sections threaded into the intermediate section, an imperforate closure cap threaded on the lower end section, an attaching nipple threaded on the upper end section, the ends of said intermediate section and the ends of 'l said closure and said attaching nipple constituting pairs of spaced annular shoulders,

mieter.

section and upper and lower end sections having threaded connection with the intermediate section,an attaching nipple threaded onto the upper end section, an imperiorate closure cap threaded onto the lower secl ,the end sections between said annular shoulders and extending beyond the surface of the tubular body, the area of the perforations in said intermediate section being substantially greater than the area of the perforations in the liner between the packings whereby the water discharged through the perforations in the intermediate section is forced through the pertorations in the liner with great force. n

ALEXANDER, ietwniron`

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