CN2858939Y - General paraffin scraper of oil well - Google Patents
General paraffin scraper of oil well Download PDFInfo
- Publication number
- CN2858939Y CN2858939Y CN 200520031349 CN200520031349U CN2858939Y CN 2858939 Y CN2858939 Y CN 2858939Y CN 200520031349 CN200520031349 CN 200520031349 CN 200520031349 U CN200520031349 U CN 200520031349U CN 2858939 Y CN2858939 Y CN 2858939Y
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- CN
- China
- Prior art keywords
- paraffin
- paraffin scraper
- oil well
- scraper
- designed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a general paraffin scraper of oil well, consisting of an adjustable ring, a lock bolt, a centralizing rod, a paraffin scraping piece, a paraffin cutting assembly and a center rod. The external diameter of the paraffin scraping piece is small in upper part and large in lower part. The uplink face is designed to be outer bevel while the downlink face is designed to be inner bevel. A centralizing guide device is mounted on the center rod which can avoid drill bit jammed by the paraffin scraper when tripping in and out effectively and guarantee smooth process of paraffin cleaning and discharging of the flowing well.
Description
Technical field: the utility model relates to the general paraffin scraper of a kind of oil well, belongs to the clear wax-proofing apparatus of oil field whale regular maintenance.
Prior art: in the exploitation of oil field flowing well, along with the decline and the light paraffins component of temperature and pressure are constantly overflowed, the molten wax ability of crude oil reduces, and wax begins crystallization, separates out, assembles, and constantly deposition, obstruction, and directly influence is produced.The wax control of oil well and wax removal measure at present often is the paraffin scraper that adopts external diameter Φ 58-60mm, this device mainly contains ring alive, lock bolt, righting rod, paraffin scraper, paraffin cutting assembly assembly and center-pole and forms, the upper and lower external diameter of paraffin scraper is consistent and be interior chamfering entirely, its operating principle is that paraffin scraper is when descending, rotation by paraffin scraper, to remove attached to the wax of tube inner wall, wax stone is up with up gas stream, when running into the paraffin cutting assembly assembly, the paraffin cutting assembly assembly breaks into pieces the wax of bulk sheet, discharge pit shaft with gas stream again, to guarantee that oil pipe is unimpeded.The problem that this device exists in clear, wax control use mainly contain following some: the one, this paraffin scraper only is fit to the whale that there is tubing string the down-hole, and the oil well down-hole is not had tubing string, then can not use, in case use, with regard to regular bit freezing; The 2nd, because the paraffin scraper external diameter is bigger, this device is in the whale use that tubing string is arranged, there is also the time lock of tool drilling to take place in tubing coupling place, in case the oil well bit freezing, clear wax control measure just must not be implemented, a large amount of wax stone cohesions, can influence the gas stream circulation passage, cause the flowing well well of lying when serious, shorten flowing life, influence the economic benefit of oil well.
Summary of the invention: the purpose of this utility model is exactly the above-mentioned defective that exists in the prior art in order to overcome, the general paraffin scraper of a kind of oil well of design
The utility model is made up of live ring, lock bolt, righting rod, paraffin scraper, paraffin cutting assembly assembly and center-pole, the external diameter top of paraffin scraper is little, the bottom is big, up face is designed to outer chamfering, descending face is designed to interior chamfering, on center-pole, be equipped with and set upright guiding device 4, can effectively avoid paraffin scraper bit freezing in the process of making a trip, guarantee the carrying out smoothly of clear, de-waxing work of flowing well.
Description of drawings: accompanying drawing 1 is the utility model structural representation.
The specific embodiment: the utility model is described further below in conjunction with accompanying drawing:
The utility model is by the ring 1 of living, lock bolt 2, locking back of the body cap 3, set upright guiding device 4, righting rod 5, paraffin scraper 6, paraffin cutting assembly assembly 7 and center-pole 8 are formed, the external diameter top of paraffin scraper 6 is little, the bottom is big, up face is designed to outer chamfering, descending face is designed to interior chamfering, on center-pole 8, be equipped with and set upright guiding device 4, this apparatus structure is evenly to weld three leg-of-mutton iron plates outside a cylinder, this iron plate has chamfering, and an end has sharp type cutting edge, when paraffin scraper is worked, play the effect of cuing open wax, in trip-out process, play centralizing function, in flowing well, during no tubing string, can effectively avoid paraffin scraper bit freezing in the process of making a trip, guarantee the clear of flowing well, carrying out smoothly of de-waxing work.
Claims (2)
1, the general paraffin scraper of a kind of oil well, ring (1), lock bolt (2), righting rod (5), paraffin scraper (6), paraffin cutting assembly assembly (7) and center-pole (8) are formed by living, it is characterized in that, the external diameter top of paraffin scraper (6) is little, the bottom is big, up face is designed to outer chamfering, and descending face is designed to interior chamfering; On center-pole (8), be equipped with and set upright guiding device (4).
2, the general paraffin scraper of oil well according to claim 1, it is characterized in that setting upright guiding device (4) is evenly to weld three leg-of-mutton iron plates outside a cylinder, this iron plate has chamfering, and an end has sharp type cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031349 CN2858939Y (en) | 2005-07-21 | 2005-07-21 | General paraffin scraper of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031349 CN2858939Y (en) | 2005-07-21 | 2005-07-21 | General paraffin scraper of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2858939Y true CN2858939Y (en) | 2007-01-17 |
Family
ID=37611799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520031349 Expired - Fee Related CN2858939Y (en) | 2005-07-21 | 2005-07-21 | General paraffin scraper of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2858939Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747984A (en) * | 2012-07-02 | 2012-10-24 | 中国石油化工股份有限公司中原油田分公司采油四厂 | Flowing well bipolar paraffin scraper and use method |
| CN117449804A (en) * | 2023-12-25 | 2024-01-26 | 克拉玛依新科澳石油天然气技术股份有限公司 | Mechanical self-paraffin removal device and paraffin removal method |
-
2005
- 2005-07-21 CN CN 200520031349 patent/CN2858939Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747984A (en) * | 2012-07-02 | 2012-10-24 | 中国石油化工股份有限公司中原油田分公司采油四厂 | Flowing well bipolar paraffin scraper and use method |
| CN117449804A (en) * | 2023-12-25 | 2024-01-26 | 克拉玛依新科澳石油天然气技术股份有限公司 | Mechanical self-paraffin removal device and paraffin removal method |
| CN117449804B (en) * | 2023-12-25 | 2024-03-19 | 克拉玛依新科澳石油天然气技术股份有限公司 | Mechanical self-paraffin removal device and paraffin removal method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |