US1840432A - Pump - Google Patents

Description

P. H. BRAY Jan. l2, 1932.

PUMP

Filed Feb. 4. 1929 INVENTOR, PAK 8 y TTORNE Y ini.

Patented Jan. 12, 1932l UNITED STATES PATRICK H. BRAY, F LONG BEACH, CALIFORNIA Y PUMP Application filed February 4, 1929. Serial No. 337,340.

This invention relates to pumps and more especially to deep well pumps of the class including a standing valve mounted on a standing, fixed column (or stem) provided With a packing means on which is reciprocated a travelling pump barrel carrying a head or travelling valve.

A feature of this class of pumps is that the travelling barrel can be utilized as a means of pulling the standing column from a retaining lock when it is desired to remove the pump as a whole from the well without pulling the tubing.

A common defect of this class of pump is that sand settles on the locking means and freezes the parts to the tubing so that tbe pump cannot be pulled without great risk ofA serious injury of parts and possible loss of the well by reason of blocking of the hole when it is impossible to fish out the obstructing parts below the break. For this reason one object of the invention is to maintain the sand in such a constant state of agitation that it cannot pack down on the lock shoe box and lock shoe pin.

To that end means are provided to cause a positive jet action of liquid over the lock means and keep the sand in a state of suspension so that it will be carried olf in the discharge, and therefore prevent"sanding up.

Another object is to provide means for positively interlocking the travelling barrel to'the standing lock means to enable the screwing or unscrewing of parts of the rod string in event of need.

An additional object is to provide a pump of such structure and design that the travelling barrel can be reversed end for end after a period of use so that its useful life may be greatly extended.

Other objects, advantages and features of construction, and details of means and of operation will be made manifest in the ensuing description of the herewith illustrative embodiment; it being understood that modifications, variations and adaptations may be resorted to within the spirit, scope and principle of the invention as it is hereinafter claimed.

Figure 1 is an axial section of the pump. j

Figure 2 is a detail of a guide part and the barrel.

Figure 3 is an axial section of the jet nut or foot bushing of the barrel.

Figure 4 is a bottom plan of the jet bushing and its coupler face.

Figure 5 is a top plan of the coupler end of the lock shoe pin.

Figure 6 is a side elevation of a packing stand.

Figure 7 is a side elevation of a bronze, barrel guide. j

The pump is shown as assembled in the usual pump tubing T having a suitable shoe lock means L to detachably lock a shoe pin P. 65 A feature of this pin is that it has a clutchl or coupler head 2 to be non-rotatively interlocked with a complementary part 3 on the bottomy end of a travelling barrel B. `The part 3 is in the form of a bushing having side 70 jaws 4 to mesh with the flat-side head 2 of the pin P thus coupling these parts against rotation when the bushing is lowered to close the coupler parts.

Further, the bushing is provided with a 75 series of ducts 5 from top to bottom so that as the barrel slides up from bottom position, liquid will be forced down in strong jets and wash sand from the top of the pin P so that this can be readily pulled from its seat in the 80 lock box L.

The upper end of the barrel is provided with the usual head valve V to the cage of which is connected the usual sucker rod (not shown). 85

Within the barrel is a standing valve which is screwed on the upper end of a stem or column 10 whose lower end screws into a pipe joint 11 screwed into the pin P.

On the joint 11 is screwed a collar 12 which 90 butts against a bronze sleeve or guide 13 having oil collecting grooves 14. As shown in Figure 2 the grooves are under cut to provide a leading knife edge 15 to scoop sand and oil n from the adjacent barrel face. These guides arearranged in suitable order along the standing column l0 and having a guiding relation to the working barrel. f

Preferably stacks of packing 16 are placed along the column. In the present case each stack is mounted on a stand 17 of which a plurality is assembled between the lower guides 13 and a top guidev 13 just below the standing valve S.

As here shown the stand 17 has a shoulder 18 clearing the barrel and forming a support for one end of a stack of packing andy its opposite end is bevelled at 19 to seat in the near end of the next guide 13. The string ofguides 13 and stands 17 are clinched up on the column 10 by the foot'collar 12.

Preferably, the packing stacks arel each thrust endwise toward the shoulders 18 of their stands by springs 19. Each stand has a conical part 2O which acts lto expand the imposed packing, as set out in my Patent #1,636,935 (H. M. Green) July 26, 1927.

The top guide 13 is inverted so that its grooves 14 scoop on the down stroke of the barrel and the lower guides are set so that their grooves scoop on the upward, or suetion stroke, of the barrel. The collecting grooves function to hold back heavy pressure from the packing 16.

venting ducts which open directly toward the anchor coupler face so that during the strokes of the barrel, ejected liquid is impelled toward the anchor top face to aid in prevention of sand accumulation thereon.

3. The combination, with a pump of the 'class having a standing guide column with a part to aid in preventing sand settlementl thereon.

PATRICKl H. BRAY.

The barrel B can be reversed end for end I.

,the guide to be tted and operated closer to the barrel than with anyT other known metal plunger and without heating and consequent freezing of the pump due to expansion of the inner parts. In other words this bronze plunger or guide is highly eicient asa pack ing, runs close and reduces slippage of oil past the guide and has long life and is nonheating.

What is claimed is:

1. The combination, with a pump of the I class having a standing guide column with a working valve and a valved travelling barrel, running on said column.; of a bottom. guide, on said?, barrel, running on said column and having a bottom face forming a coupler, and an anchor for the column presenting directly to said coupler face a top face forming a complementary coupling to be non-rotatively interlocked with the lower guide coupler.

2. The combination, with a pump of the classhaving a standing guide column with a working valve and a valved travelling barrel, running on said column; of a bottom guide, on said barrel, running on said column and having a bottom face forming a coupler, and an anchor for the column presenting a top face forming a complementary coupling to be non-rotatively interlocked with the lower guide coupler; said guide having a series of

Images