Centering paraffin scraper for sucker rod

A sucker rod guide and wax scraper includes a scraper blade fixed on the sucker rod, an up and down cutting sleeve fixed to the top and bottom of the blade. The blade is a elastic rolled thin plate with slot in a structure of double layer sleeve. One end of the outer sleeve slops downward and the other end slop upward. Bevel edge is installed to the two ends of the outer sleeve. The two ends of the inner sleeve are parallel. The front and back cyclo-faces of the inner sleeve are symmetry to each other with slots to left and right.

Centering paraffin scraper for sucker rod

Automatic purchasing method for equipment spare parts

The invention discloses an equipment spare part automatic purchasing method, and relates to the technical field of equipment spare part purchasing. According to the invention, the original situation that a special manager autonomously queries inventory information in a rolling manner is changed into the situation that the system automatically generates spare part purchasing suggestions according to safe inventory, timely inventory and in-transit quantity. According to the invention, an original approval management and control node-purchase application form is changed into approval procurement suggestions. According to the invention, through monthly fixed time, the system automatically generates related procurement suggestions according to safety inventory configuration of equipment spare parts, and then confirms and executes the procurement suggestions (submitting approval), and after approval, a procurement application form of an auditing state of an EAS and a shopping mall order of an ...

Stopper for sucker rod centralizer

The invention relates to a stopper for a sucker rod centralizer, which comprises an inner semi-sleeve and an outer semi-sleeve fastened with the inner semi-sleeve and is characterized in that: the inner semi-sleeve and the outer semi-sleeve are respectively made from elastic metal materials; a first wedged slot is formed on the left side of the inner semi-sleeve; a wedged slip is arranged in the first wedged slot; a second wedged slot is formed on the right side of the outer semi-sleeve; a wedged slip is arranged in the second wedged slot; one side, in contact with the sucker rod, of the wedged slips is provided with saw teeth. The stopper for the sucker rod centralizer has the advantages that: made from the elastic metal materials, the stopper is free from the influence of oil contamination and can keep steady at high temperature in oil well; due to the wedged slips with the saw teeth, the sucker rod centralizer cannot axially move so that the stopper stops reliably. The stopper is suitable ...

FILTH-REMOVING APPARATUS FOR BEAM-PUMPING WELL

The device can remove oil dirt and paraffin wax deposited on oil tube and pumping rod of oil-pumping well. A scraper has a wax scraping edge and a window in which a reversing tooth is installed. There are reset springs at both sides of the reversing tooth. The scraper is connected to a pressurizing leaf spring to which a hanging tooth is hinged. The inner diameter of scraper is greater than the outer one of connecting hoop of pumping rod and its outer diameter is smaller than the inner one of oil tube. The device features simple structure, easy use and high reliability.

Automatically bevel-variable contact type sucker rod centering guide

Auto-changing oblique contact type sucker rod centering guide

The automatic variable slant contacting sucker rod centralizer includes one core axle with internal thread in one end for connection to sucker rod and external thread in the other end, one coupler with internal thread in its two ends for connection to sucker rod and the core axle separately, and one centralizing sleeve. It features the core axle with drum-shaped middle section, and the centralizing sleeve housing the middle section of the core axle with cross section of elliptic outer contour and in the maximum radius equal to or near to that of the sucker rod and spherical ends. It has the advantages of capacity for the centralizing sleeve to regulate the inclination automatically with the sucker rod direction to avoid hard friction, less wear and long service life.

WAX SCRAPER OF PUMPING UNIT

This invention is a wax wiper by which is cleared out wax deposit in oil outlet pipe of oil well pumping unit. This wax wiper is comprised of tubular integral connecting scraper which is mounted on sucker rod of oil pumping unit, stepping leaf with stepp ing ratchet which is placed at two ends of scraper and by which is clamped sucker rod, as well as pairs of reversing ratchets which are mounted on scraper. The stepping ratchets and reversing ratchets act to sucker rod and internal wall of oil pipe with motion of sucker rod, wax in oil pipe skived out stepwise by the sax wiper. For this wax wiper, direction can be changed automatically.

Konilite wet ball milling-paint integrated preparation method

The invention discloses a konilite wet ball milling-paint integrated preparation method. The konilite used as the main raw material is firstly subjected to wet ball milling to obtain the konilite ultrafine slurry, and other powder slurries are added in the paint preparation link to obtain the konilite-base paint; the coated film is bright and fine; and the method solves the problem of paint pollution caused by wearing iron powder since the konilite with high hardness can easily wear and damage the sand mill in the paint sanding link.

Screw pump well sucker rod centralizer with bidirectional protection effect

The invention relates to a screw pump well sucker rod centralizer with bidirectional protection effect, which comprises a centralizing body and is characterized in that: the centralizing body is an open cylinder formed by coiling an elastic metal sheet and provided with an inner ring and an outer ring, a magnet is embedded into the outer ring, and the diameter of the inner ring is greater than that of a sucker rod; and a centralizing body inner ring bush is arranged in the inner ring of the centralizing body, a sucker rod bush is arranged on the sucker rod, and the inside diameter of the centralizing body inner ring bush is greater than the outside diameter of the sucker rod bush. The centralizer has the advantages that: because the magnet is embedded on the circumference of the centralizing body and the centralizing body does not produce relative rotation with an oil pipe, abrasion of an external circle of the centralizing body and abrasion of the wall of the oil pipe are avoided; wedge-shaped ...

Automatic oil well wax cleaning aparatus