CN2150329Y

CN2150329Y - Wax-scraping righting device for oil-pumping well

Info

Publication number: CN2150329Y
Application number: CN 93202676
Authority: CN
Inventors: 朱鸿亮
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-01
Filing date: 1993-02-01
Publication date: 1993-12-22
Anticipated expiration: 2003-02-01

Abstract

The utility model relates to a wax-scraping righting device for the oil-pumping well, which is a wax-scraping righting tool used when the oil-pumping well is in normal work in the oil extraction. The utility model comprises a rod shaft, a righting tripod, and a wax scraper, having the advantages of simple structure, easy fabrication, wax-scraping and righting functions to the oil-pumping well, low cost, and wide range of application.

Description

Wax-scraping righting device for oil-pumping well

Pumpingh well paraffin cutting centralizer is the mechanical paraffin removal instrument that is used for the interior paraffin cutting of oil pipe of oil exploitation pumpingh well and sets upright sucker rod.

Pumpingh well dewaxing method of the prior art has four kinds, and first kind is electrical heating method; Promptly power supply is delivered to heater special in the well, electric energy is converted into heat energy realizationization wax by ground installation.Second kind is to pump into medium method; Promptly pumping into chemical agent from oil well casing makes itself and wax generation chemical reaction dissolve the wax composition or pumping into deep fat, hot water makes it melt wax.The third is the mechanical paraffin removal method; Promptly carry out mechanical paraffin removal with the nylon paraffin scraper that is fixed on the sucker rod.The 4th kind is the magnetization method; Promptly the wax crystal magnetization is decomposed with the magnetic energy that is installed on the magnet on the oil pipe.In above-mentioned four kinds of methods, first kind technical difficulty is big, power consumption is high, cost is high, and second kind is subjected to vehicle, environment and time restriction, cost height, and the 4th kind also because of technical difficulty is big, is subjected to moisture the influence.The utility model has following advantage; The one, paraffin scraper is rotatable, and the 2nd, the paraffin cutting radius is big, and the 3rd, sucker rod is played centralizing function.

The purpose of this utility model is to improve the wax removal effect of pumpingh well, reduces cost and sets upright sucker rod.Design and installation pumpingh well paraffin cutting centralizer on sucker rod makes paraffin scraper rotation paraffin cutting by the rectilinear motion up and down of sucker rod, and sucker rod is set upright at the oil pipe center, alleviates the frictional force of sucker rod joint hoop and tube inner wall, avoids that oil pipe is worn out.

The utility model by bar axle 1, set upright tripod 3, paraffin scraper 18, radial thrust bearing 10, radial thrust bearing 13, bottom bracket axle 7, reducer union 11 and formed.

Setting upright tripod 3 is that an inside has a garden shape through hole 38, the outside is one to be three equidistant similar shape leg framves 4 of 120 ° of distributions, leg frame 5, the integral body that leg frame 6 is formed, not end at each equidistant similar shape leg frame respectively has a Baltimore groove 24, Baltimore groove 25 and Baltimore groove 26, in the both sides of each Baltimore groove a pair of earrings 27 is arranged respectively again, earrings 28 and earrings 29, in Baltimore groove 24, put into radial ball bearing 9 then, pass the endoporus of radial ball bearing 9 in the earrings 27 with axle 8, Baltimore groove 25 is put into radial ball bearing 20, pass the endoporus of radial ball bearing 20 in the earrings 28 with axle 17, put into radial ball bearing 21 in the Baltimore groove 26, pass the endoporus of radial ball bearing 21 in the earrings 29 with axle 19, be assembled into thus and set upright tripod 3.When sucker rod up and down during rectilinear motion, three radial ball bearings 9, radial ball bearing 20 and radial ball bearings 21 roll along tube inner wall around axle 8, axle 17 and axle 19 respectively, to alleviate the frictional force of sucker rod joint hoop and tube inner wall, avoid that oil pipe is worn out, set upright tripod 3 simultaneously and will set upright at the oil pipe center from the bar axle 1 that its interior bone 38 is passed.Paraffin scraper 18 by paraffin scraper 15, go up inner rotary member 14, down turn 12 be connected garden bar 16 and form, paraffin scraper 15 be one inwardly tiltedly the hollow band of formula leakage of carrying the thin slice ring, the inside and outside portion of ring all is the garden cylinder, tiltedly being a cambered blade, thin slice ring and cambered blade play the paraffin cutting effect when paraffin scraper 18 rotations, be welded with garden bar 16 at the center of gravity position of paraffin scraper 15 and be connected, paraffin scraper 15 lower ends and turn 12 down to weld be one with last inner rotary member 14 weldering systems.Last inner rotary member 14 and under 12 similar shapes of turning, its outside is the garden cylinder, inside is one the Cylinder of garden platform through hole to be arranged, at last inner rotary member 14 and the surface of 12 the interior garden platform of turning down Baltimore groove 30 and Baltimore groove 31 are arranged respectively, inlaying key 22 in the Baltimore groove 30 is connected with the outer shroud of radial thrust bearing 13, the outer shroud of inlaying key 23 and radial thrust bearing 10 in the Baltimore groove 31 is connected, but paraffin scraper 18 forms the paraffin cutting instrument that a distaff axle 1 rotates with the outer shroud of radial thrust bearing 13 and the outer shroud of radial thrust bearing 10 respectively by key 22, key 23.Radial thrust bearing 13 and radial thrust bearing 10 are standard component, but are milled with groove 32 and groove 33 on its outer shroud respectively, and groove 32 is used to inlay key 22, and groove 33 is used to inlay key 23.Bottom bracket axle 7 inside are a garden shape through hole 37, and the outside is the axle sleeve of garden cylinder, and the effect that it plays is two adjacent surface position-limiting actions with radial thrust bearing 13 and radial thrust bearing 10.When sucker rod up and down during rectilinear motion, liquid produces relative motion and strikes off wax stone in paraffin scraper 15 and the oil pipe, and paraffin scraper 15 rotates under the radial thrust effect of liquid simultaneously, the wax stone fragmentation is discharged oil pipe with fluid realize the wax removal purpose.The interior bone 38 that to set upright tripod 3 during assembling earlier peaks on the shaft shoulder 2 of bar axle 1 along bar axle 1 lower end, then paraffin scraper 18 is pushed along bar axle 1 lower end, again radial thrust bearing 13 and key 22 are peaked at along bar axle 1 lower end and set upright on the tripod 3, again the inner via hole 37 of bottom bracket axle 7 is pushed into radial thrust bearing 13 along the lower end of bar axle 1, again radial thrust bearing 10 and key 23 are pushed into bottom bracket axle 7 along bar axle 1 lower end, tightly are assembled into pumpingh well paraffin cutting centralizer with the interior button of reducing section header 11 and following outer the buckling of bar axle 1 at last.

According to the wax deposition degree and the wax deposition position of oil well, determine the quantity and the degree of depth that are lowered to when using the utility model.Silk outside bar axle of the present utility model 1 upper end is taken out and the interior screwed connection of sucker rod joint hoop, and the interior screw thread of reducing section header 11 just is connected and can uses with the sucker rod male thread.

Pumpingh well paraffin cutting centralizer functional performance is good, and following advantage is arranged; The one, by the radial and axial power that the rectilinear motion up and down of sucker rod produces the wax stone fragmentation in the oil pipe is discharged with fluid, no longer need external power and medium, economic effect is fabulous, and the 2nd, sucker rod in the off plumb oil well is played centralizing function.

Accompanying drawing 1 is the structural representation of pumpingh well paraffin cutting centralizer, and 1 is the bar axle, 3 for set upright tripod, 18 for paraffin scraper, 10 for radial thrust bearing, 13 for another radial thrust bearing.

Accompanying drawing 2 is A-A sectional views of pumpingh well paraffin cutting centralizer, 4,5,6, be three equidistant similar shape leg framves that are 120 ° of distributions, and 8,17,19 is three same profile shafts, 9,20,21 is three homotype radial ball bearings, the 15th, paraffin scraper.

Accompanying drawing 3 is B-B rotation partial sectional views of pumpingh well paraffin cutting centralizer, the 15th, and paraffin scraper, the 14th, last inner rotary member, the 12nd, turn down, the 16th, connection garden bar, the 11st, reducing section header.

Accompanying drawing 4 is work schematic diagrames of pumpingh well paraffin cutting centralizer, and 1 is the bar axle, and 3 for setting upright tripod, and 18 is paraffin scraper, and 11 is the reducing section header, and 34 is sucker rod, and 35 is oil pipe, and 36 are sucker rod joint hoop.

Claims

1, a kind of pumpingh well paraffin cutting centralizer is by bar axle 1, sets upright tripod 3, paraffin scraper 18, and radial thrust bearing 10, radial thrust bearing 13, bottom bracket axle 7, reducer union 11 is formed; It is characterized in that paraffin scraper 18 is by paraffin scraper 15, last inner rotary member 14, under turn 12, connection garden bar 16 is formed, paraffin scraper 15 be one inwardly tiltedly the hollow band of formula leakage of carrying the thin slice ring, in the ring, the outside is the garden cylinder, tiltedly being a cambered blade, there is garden bar 16 to be connected with last inner rotary member 14 weldering systems at the center of gravity position of paraffin scraper 15, paraffin scraper 15 lower ends and turn down and 12 weld, last inner rotary member 14 and under 12 similar shapes of turning, its outside is the garden cylinder, inner for the Cylinder of garden platform through hole is arranged, at last inner rotary member 14 and 12 the platform surface, garden of turning down Baltimore groove 30 and Baltimore groove 31 are arranged respectively, paraffin scraper 18 passes through key 22, but key 23 forms the wax removal instrument that a distaff axle 1 revolves with the outer shroud of radial thrust bearing 13 and radial thrust bearing 10 respectively; Setting upright tripod 3 is that an inside is garden shape through hole 37, the outside is one to be three the equidistant similar shape leg framves 4,5 and 6 integral body of forming of 120 ° of distributions, end at each equidistant similar shape leg frame respectively has a Baltimore groove 24, Baltimore groove 25 and Baltimore groove 26, at each Baltimore groove two respectively have a pair of earrings 27 again, earrings 28 and earrings 29.