CN201891407U - Novel paraffin scraper - Google Patents

Abstract

A novel paraffin scraper is a device for removing paraffin on flowing well of oil field, which prevents a drill pushing accident caused by larger blade area of old style paraffin scraper, larger amount of taking paraffin and paraffin block. The novel paraffin scraper is obtained through connecting a blade, a blade mount, a central rod and a stroke chuck. The blade is spiral and is provided with an edge. One end of the blade is fixed on the central rod through the blade mount. Two ends of the central rod are respectively provided with a stroke chuck. The novel paraffin scraper is mainly used for a paraffin cleaning winch and is equipped at a middle position between a paraffin removing steel wire and a plummet. A pulley which passes through a paraffin climbing rod causes the paraffin scraper to descend to the inner part of the oil pipe of the flowing well through a gravity of the plummet and the blade of the paraffin scraper scrapes the paraffin on the pipe wall for ensuring oil flow unblocked.

Description

Novel paraffin scraper

One, technical field: the utility model relates to oil field flowing well mechanical paraffin removal device, especially novel paraffin scraper.

Two, background technology: flowing well with its output height, drop into low advantage, remarkable benefit makes its well that becomes to attach most importance in each oil field.Also also become the emphasis of field produces unit management so comparatively speaking at the management of flowing well.When flowing well during in ordinary production, after the stratum crude stream is gone into pit shaft, rise to the process of well head from the shaft bottom, pressure and temperature in wellbore reduce gradually, originally the wax that is dissolved in the crude oil is separated out from crude oil, stick on the borehole wall and oil pipe on, make the well wellbore wax deposition, after the oil well paraffinication, dwindle the oil pipe aperture, increased oil flow resistance, cause the oil well underproduction, can block oil well when serious and form flowing well stop-spraying phenomenon,, make its ordinary production so take effective dewaxing method at wax deposition reason and wax deposition method.The mechanical paraffin removal of flowing well, be to utilize paraffin hoist, rely on the weight of plummet, use steel wire to be lowered to pit shaft by lubricator as the paraffin scraper that draws 8 fonts, under the weight effect of plummet, paraffin scraper scrapes the wax on the pit shaft, and the wax that scrapes is discharged pit shaft with gas stream, finishes the effect of flowing well down-hole oil tube or sleeve pipe wax removal.Because existing " 8 " font paraffin scraper is in the process of wax removal, " 8 " font paraffin scraper area is big, long-pending wax is serious, wax is dead with the paraffin scraper bag, cause gas stream obstructed, make the paraffin scraper pressure reduction up and down in the oil pipe become big, cause the gas stream row of going up fast, because steel wire or terrestrial operation personnel have had little time, forming steel wire beats and turns round or steel wire is wrapped on the paraffin scraper, cause the generation paraffin scraper, drop shaft bottom or be stuck in major accident in the pit shaft of plummet, if the crown drill post processing is improper taking place, the flowing well stop-spraying can take place, the major accident that oil well kills etc. when directly causing the underproduction and processing accident.

Three, summary of the invention: it is smaller that the purpose of this utility model provides a kind of area, the few novel paraffin scraper of band wax, it is bigger that it stops flowing well blade area because of old-fashioned paraffin scraper in the wax removal process, band wax is many, because of the accident that paraffin blockage causes crown drill to take place, the purpose of this utility model is achieved in that it is to be formed by connecting by blade, blade holder, center-pole and stroke dop, blade is a spirality, and blade is arranged on blade; One end of blade is fixed on the center-pole by blade holder; Two ends at center-pole have the stroke dop respectively.

This device mainly is used on the paraffin hoist, be installed in the centre position of wax removal steel wire and plummet, pulley by the wax pole-climbing utilize the gravity of steel wire by plummet with under the paraffin scraper to the oil pipe inside of flowing well, the blade of paraffin scraper utilizes the gravity of plummet to scrape wax on the tubing wall, guarantees the unimpeded of oil stream.

Four, description of drawings: Fig. 1 is the structural representation of novel paraffin scraper, among the figure 1, blade 2, blade holder 3, center-pole 4, stroke dop

Five, the specific embodiment: in Fig. 1, blade 1 is a spirality, on blade 1 blade is arranged; One end of blade 1 is fixed on the center-pole 3 by blade holder 2; Two ends at center-pole 3 have stroke dop 4 respectively.

Claims (2)

1. novel paraffin scraper, it is to be formed by connecting by blade (1), blade holder (2), center-pole (3) and stroke dop (4), it is characterized in that: an end of blade (1) is fixed on the center-pole (3) by blade holder (2); At the two ends of center-pole (3) stroke dop (4) is arranged respectively.

2. novel paraffin scraper according to claim 1 is characterized in that: blade (1) is a spirality, on blade (1) blade is arranged.