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Sucker rod blowout-preventing, self-sealing, paraffin scraping and flow guiding device

A technology of diversion device and sucker rod, which is applied in the direction of cleaning equipment, wellbore/well parts, earthwork drilling and production, etc., to achieve the effect of simple structure, convenient use and thorough cleaning

Active Publication Date: 2018-06-12
河北鸿凯石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a sucker rod blowout prevention self-sealing wax scraping guide device, so as to solve the aforementioned problems in the prior art

Method used

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  • Sucker rod blowout-preventing, self-sealing, paraffin scraping and flow guiding device
  • Sucker rod blowout-preventing, self-sealing, paraffin scraping and flow guiding device
  • Sucker rod blowout-preventing, self-sealing, paraffin scraping and flow guiding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] see Figure 1-3 , a sucker rod anti-blowout self-sealing wax scraping guide device provided by the present invention, comprising a sucker rod 1, a housing 2, a wax scraper 5, and a guide pipe 8, and the housing 2 includes an upper cover plate 21 , the lower cover plate 22 and the side wall 23, the lower cover plate 22 is equipped with the lower part of the housing 2, the upper part is connected with the upper cover plate 21 by threads, the sucker rod 1 passes through the center of the housing 2, the scraper The wax vessel 5 is installed in the casing 2 and set on the sucker rod 1;

[0036] Both sides of the wax scraper 5 are provided with a circular deflector 4, and at least one deflector 8 is provided on the side wall 23 of the housing 2, and the outer end of the deflector 4 is connected to the deflector 8. ;

[0037] A filter plate 6 is arranged above the deflector 4, and a sleeve is provided at the center of the filter plate 6, and the sleeve is installed on the up...

Embodiment 2

[0057] see Figure 1-3 , a sucker rod anti-blowout self-sealing wax scraping guide device provided by the present invention, comprising a sucker rod 1, a housing 2, a wax scraper 5, and a guide pipe 8, and the housing 2 includes an upper cover plate 21 , the lower cover plate 22 and the side wall 23, the lower cover plate 22 is equipped with the lower part of the housing 2, the upper part is connected with the upper cover plate 21 by threads, the sucker rod 1 passes through the center of the housing 2, the scraper The wax vessel 5 is installed in the casing 2 and set on the sucker rod 1;

[0058] Both sides of the wax scraper 5 are provided with a circular deflector 4, and at least one deflector 8 is provided on the side wall 23 of the housing 2, and the outer end of the deflector 4 is connected to the deflector 8. ;

[0059] A filter plate 6 is arranged above the deflector 4, and a sleeve is provided at the center of the filter plate 6, and the sleeve is installed on the up...

experiment example

[0079] Experimental objects: use ordinary commercially available filter plates as control group 1, use imported filter plates as control group 2, and use the filter plates of this application as the experimental group.

[0080] Experimental requirements: The shape, thickness, and volume of the three sets of filter plates are all the same, and the corrosion resistance test and ball pressure test are carried out respectively, and the following data are obtained.

[0081] The specific results are shown in the table below:

[0082]

[0083] Combining the above table, comparing the data obtained by three different experimental objects under three different experimental methods, the corrosion resistance and hardness of the filter plate of the present invention are better than those of the two control groups.

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PUM

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Abstract

The invention discloses a sucker rod blowout-preventing, self-sealing, paraffin scraping and flow guiding device. A sucker rod penetrates through the center of a shell, and a paraffin scraping deviceis mounted in the shell and arranged on the sucker rod in a sleeving mode. Circular flow guiding plates are arranged on the two sides of the paraffin scraping device, at least one flow guiding pipe isarranged on the side wall of the shell, and the outer ends of the flow guiding plates are connected with the flow guiding pipes. Filtering plates are arranged above the flow guiding plate, casing pipes are arranged in the centers of the filtering plates and mounted at the upper end of the paraffin scraping device, and the two ends of the flow guiding pates are movably connected with the side wallof the shell, and steel wire ropes are arranged at the edges of the flow guiding plates and penetrate through an upper cover plate. According to the sucker rod blowout-preventing, self-sealing, paraffin scraping and flow guiding device, the flow guiding plates are arranged at the edge of the existing paraffin scraping device, and the filtering plates are fixed to the paraffin scraping device, sothat when the rocker rod moves vertically, oil paraffin scraped by the paraffin scraping device is stacked on the filtering plates and falls to the flow guiding plates from screening holes, and impurities remain on the filtering plates; and the flow guiding plates are slopes, so that the oil paraffin flows into flow guiding grooves along the slopes and further is flatly discharged from the flow guiding pipes.

Description

technical field [0001] The invention relates to the field of supporting devices for oil field workover, and mainly relates to a blowout prevention self-sealing wax-scraping diversion device for sucker rods. Background technique [0002] Crude oil is rich in wax, and most of the crude oil has a high wax content. Most of the crude oil produced has a wax content of more than 20%, and the crude oil with a wax content of more than 10% accounts for more than 90% of the total output crude oil. During the extraction of crude oil, the paraffin dissolved in the crude oil will precipitate from the natural gas as the external pressure and temperature decrease, and grow up in the form of crystals, accumulate and deposit on the tubing wall and other oil extraction equipment, which gives Oil extraction increases resistance, affects the speed of oil pumping, and reduces the amount of oil pumped. In the prior art, manual cleaning is often used for wax deposition in oil wells, and there is a...

Claims

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Application Information

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IPC IPC(8): E21B37/02
CPCE21B37/02
Inventor 冯海朝
Owner 河北鸿凯石油科技有限公司
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