US1600577A - Paraffin scraper for well appliances - Google Patents
Paraffin scraper for well appliances Download PDFInfo
- Publication number
- US1600577A US1600577A US12887A US1288725A US1600577A US 1600577 A US1600577 A US 1600577A US 12887 A US12887 A US 12887A US 1288725 A US1288725 A US 1288725A US 1600577 A US1600577 A US 1600577A
- Authority
- US
- United States
- Prior art keywords
- well
- catcher
- tubing
- weight
- collar
- 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 - Lifetime
Links
- 239000012188 paraffin wax Substances 0.000 title description 6
- 238000007790 scraping Methods 0.000 description 14
- 239000012530 fluid Substances 0.000 description 5
- SSCSSDNTQJGTJT-UHFFFAOYSA-N (3,6-dihydroxy-1-methyl-2,3-dihydroindol-5-yl)iminourea Chemical compound CN1CC(O)C2=CC(N=NC(N)=O)=C(O)C=C12 SSCSSDNTQJGTJT-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/003—Drill bits with cutting edges facing in opposite axial directions
Definitions
- the object of the invention is to provide a device which may be associated with the lower end of a' tubing catcher or, other well appliance for scraping off the parafiin as the device is lowered in the well casing.
- a particular object is to provide a device having. a central tubular support and an annular scraping member surrounding the support and provided with a reduced scraping edge.
- a further object is to' provide a scraper having a plurality'of inclined ports for de end of the sleeve supports the coiled spring 19 which sustains the weight-20.
- Another object of the invention is toprovide a scraper made in two sections, whereby it may be clamped in place without disconnecting the tubing catcher from' the nates a central tubular-'member or sleeve tubing.
- Fig. 1 is a side View of a device constructed in accordance with the invention and illustrated partly in elevation
- Fig. 2 is a plan view of the same
- Fig. 3 is a plan view of the clamp form of scraper
- Fig. 4 is an elevation of the same, oneof the members being broken away,
- Fig. 5 is a cross-sectional view the line 55 of Fig. 3,
- Figure 6 is a sectional view illustrating the inclined ports forming deflectors
- Fig.7 is anelevation of a tubing catcherequipped with a scraper'constructed in accordance with my invention.
- the collar preferably has a smooth outer surface extending vertically, but this is subject to variation.
- Animportant feature of the collar is. its annular scraping edgesor rims 13 at its upper and lower; ends, formed by dishing the ends of the collar whereby the collar is the fluid may, freely pass the device, the collar is formed with a plurality of'vertical reduced to a narrow edge. In order that passages .or ports 14 extending. there zthrough. These serve'to allowthe fluid-to pass through the collar and also to break it upinto small streams.
- the upper end of the sleeve 10 isscrewed onto the lower end of the lower tubing section 18, 'a; tubing catcher, such as is shown in Fig. 7, and the lower end of the sleeve receives the tubing (not shown) below,the catcher.
- the upper lar 12 has a diameter slightly less than the en fin from the inner walls of the well casing and thus permit the catcher .to 'bemoved' down the well'without tripping the weight move and slips. Also upon an upward ment the upper edge 13 will remove. the parafiin coating;- g
- the sleeve 10' isfimade in two seml-circular sections formedat each end with complementary ears 15 and fastened together by bolts '16 and nuts 17.
- Semii circular collar sections 12 are -provided intermediate theends of the sleeve, The collar has scrapingedges 13' and fluid passages 14-'.-
- either form may be made with the type of passages's'hown by the other form. Should a greater retardation of the fluid he required the passages may be given an inclination as at 14 in Fig. 6. This will impart awhirling motion to the fiuid'and rounding the sleeve for scraping the parreduce the impact at the weight of the catcher, whereby said weight will not be .dislodged.
- scraping. member having its edge reduced for scraping the parafiin from the walls of a well casing as the catchermoves downward therein.
- a parafiin scraper comprising, a
- scraper comprising a 7 sleeve, and a circular scraping collar surrounding the sleeve, said collar having vertical fluid passages for scrapin the paraflin sleeve, and a circular collar surrounding the sleeve and havlngvlts upper and lower ends dished to provide annular scraping edges,
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Description
Sept. 21 1926.
C. S. CRICKMER PARAFFIN SCRAPER FOR WELL APPLIANCES Filed March 3, 1925 2 Sheets-Sheet 1 ##anrey Sept. 21 1926.
c. s. CRICKMER PARAFFIN SCRAPER FOR WELL APPLIANCES 2 She etsSheet 2 Filed March. 3 1925 Patented "Sept. 21', 192 6.
UNITED STATES PATENT OFFICE- CHARLES CRICKM IER, OF DALLAS, TEXAS, ASSIGNOR TO THE GUIBERSON CORPORA- TION, 01' DALLAS, TEXAS, A CORPORATION OF DELAWARE.
IPARAFFIIN' SORAPER FOB WELL APPLIANCES;
Application filed M aIchB, 1925 .Serial No. 12,887.
' --In placing tubing catchers in well casings considerable difiiculty is, frequently encountered when the inner walls are coated with paraflin. Such a condition reduces the inner: diameter and causes the weight of the catchers to move upward and. set the slips. I The object of the invention is to provide a device which may be associated with the lower end of a' tubing catcher or, other well appliance for scraping off the parafiin as the device is lowered in the well casing.
A particular object is to provide a device having. a central tubular support and an annular scraping member surrounding the support and provided with a reduced scraping edge.
.A further object is to' provide a scraper having a plurality'of inclined ports for de end of the sleeve supports the coiled spring 19 which sustains the weight-20. The col fiecting a fiuidpassing therethrough.
Another object of the invention is toprovide a scraper made in two sections, whereby it may be clamped in place without disconnecting the tubing catcher from' the nates a central tubular-'member or sleeve tubing. Y
A construction designed to carry out the inventionwill be hereinafter described together with other features ofthe invention.
The invention-will be more readily understood from a reading-of the following specification and by reference to the accompanying drawings, in which an :example of the invention is shown, and wherein Fig. 1 is a side View of a device constructed in accordance with the invention and illustrated partly in elevation,
Fig. 2 is a plan view of the same,
Fig. 3 is a plan view of the clamp form of scraper,
Fig. 4 is an elevation of the same, oneof the members being broken away,
Fig. 5 is a cross-sectional view the line 55 of Fig. 3,
Figure 6 is a sectional view illustrating the inclined ports forming deflectors, and
Fig.7 is anelevation of a tubing catcherequipped with a scraper'constructed in accordance with my invention.
In the drawings the numeral 10 lesig- 7 having internal screw threads 'llat each inner diameter of the well casing. Wh
the catcher is lowered in the well the lower edge 13 of the collar will scrape the paraftaken on ends Around its upper portion the sleeve is surrounded by a circular scraping collar' 12, The collar preferably has a smooth outer surface extending vertically, but this is subject to variation.
Animportant feature of the collar is. its annular scraping edgesor rims 13 at its upper and lower; ends, formed by dishing the ends of the collar whereby the collar is the fluid may, freely pass the device, the collar is formed with a plurality of'vertical reduced to a narrow edge. In order that passages .or ports 14 extending. there zthrough. These serve'to allowthe fluid-to pass through the collar and also to break it upinto small streams.
In using the scraper the upper end of the sleeve 10 isscrewed onto the lower end of the lower tubing section 18, 'a; tubing catcher, such as is shown in Fig. 7, and the lower end of the sleeve receives the tubing (not shown) below,the catcher. The upper lar 12 has a diameter slightly less than the en fin from the inner walls of the well casing and thus permit the catcher .to 'bemoved' down the well'without tripping the weight move and slips. Also upon an upward ment the upper edge 13 will remove. the parafiin coating;- g
In Figs. 3, .4 and 5, 'Ihave shown another; form in" which the :device may be made in two sections and fastened on the.
tubing immediately= below the catcher.
'This formhas the advantage of being applied without disconnecting the tubing and catcher.
The sleeve 10' isfimade in two seml-circular sections formedat each end with complementary ears 15 and fastened together by bolts '16 and nuts 17. Semii circular collar sections 12 are -provided intermediate theends of the sleeve, The collar has scrapingedges 13' and fluid passages 14-'.-
If it is'desired either form may be made with the type of passages's'hown by the other form. Should a greater retardation of the fluid he required the passages may be given an inclination as at 14 in Fig. 6. This will impart awhirling motion to the fiuid'and rounding the sleeve for scraping the parreduce the impact at the weight of the catcher, whereby said weight will not be .dislodged.
hVariouschanges in the size and shape of t e and alterations may be made within the scope of't'he appended claims.
7 at I'claim, is:-' c V 1.,The combination with a tubing catcher having a resiliently supported actuating weight, of a paraffin scraper comprising, a central support, and a circular scraping member surrounding the support.
.2. The combination with a tubing catcher having a" resiliently supportedactuating weight, of apara n scraper comprising, a central support, and an circular scrapin member surrounding .the support, .sai
-- scraping. member having its edge reduced for scraping the parafiin from the walls of a well casing as the catchermoves downward therein. 3. The combination with a tubing catcher having a resiliently supported actuating weight, of a central support, and a circular scraplng member surrounding the support, said scraping member having its upper and lower edges reduced for scraping the paraffin from the walls of a well casing asthe. catcher moves downward therein.
a The combination with a tubing catcher having aresiliently. supported actuating weight, of a para sleeve;
and a circular scrapin collar suraffin from the walls of a-well casing as the catcher moves downward therein.
weight, of a parafiin scraper comprising, a
5. The combination with a tubing catcher having a resiliently supported actuating different parts, asfwell as modifications paraflin scraper comprising, a
scraper comprising a 7 sleeve, and a circular scraping collar surrounding the sleeve, said collar having vertical fluid passages for scrapin the paraflin sleeve, and a circular collar surrounding the sleeve and havlngvlts upper and lower ends dished to provide annular scraping edges,
- weight, of a paraflin scrapercomprising, a
said collarhaving vertical fluidpassages,
the sleeve extending beyond the collar and having means ,for securing it in place below the spring and. Weight'of the tubing catcher.
8. The combination with the slip actuating weight of -a tubing catcher, of a member located below said weight having a scraping edge for removing paraffin: from the casing when the catcher moves downward in said casing. p
.9; The combination with the'slip actuat ing weight of a tubing catcher, of a member located below said weight and adjacent thereto having openings for deflecting a fluid'into a plurality of streams and permittinga downward movement'of said meniber in advance-0f a downward movement K 4 of said weight. I c
In testimony whereof Iq'afiix my signature CHARLES s. ORICKMER;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12887A US1600577A (en) | 1925-03-03 | 1925-03-03 | Paraffin scraper for well appliances |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12887A US1600577A (en) | 1925-03-03 | 1925-03-03 | Paraffin scraper for well appliances |
Publications (1)
Publication Number | Publication Date |
---|---|
US1600577A true US1600577A (en) | 1926-09-21 |
Family
ID=21757226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12887A Expired - Lifetime US1600577A (en) | 1925-03-03 | 1925-03-03 | Paraffin scraper for well appliances |
Country Status (1)
Country | Link |
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US (1) | US1600577A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2590931A (en) * | 1949-02-11 | 1952-04-01 | Sperry Sun Well Surveying Co | Chemically heated paraffin knife |
US2702083A (en) * | 1950-08-15 | 1955-02-15 | Karl G Wagner | Sucker rod centralizer and paraffin scraper |
US3912012A (en) * | 1974-08-09 | 1975-10-14 | Continental Oil Co | Method for removing plastic from the inside diameter of wellbore casing |
US6065537A (en) * | 1998-02-13 | 2000-05-23 | Flow Control Equipment, Inc. | Rod guide with both high erodible wear volume and by-pass area |
US11135628B1 (en) * | 2014-10-24 | 2021-10-05 | Tri-State Environmental, LLC | Method and apparatus for cleaning an oil and gas well riser assembly with multiple tools simultaneously |
-
1925
- 1925-03-03 US US12887A patent/US1600577A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2590931A (en) * | 1949-02-11 | 1952-04-01 | Sperry Sun Well Surveying Co | Chemically heated paraffin knife |
US2702083A (en) * | 1950-08-15 | 1955-02-15 | Karl G Wagner | Sucker rod centralizer and paraffin scraper |
US3912012A (en) * | 1974-08-09 | 1975-10-14 | Continental Oil Co | Method for removing plastic from the inside diameter of wellbore casing |
US6065537A (en) * | 1998-02-13 | 2000-05-23 | Flow Control Equipment, Inc. | Rod guide with both high erodible wear volume and by-pass area |
US6312637B1 (en) * | 1998-02-13 | 2001-11-06 | Flow Control Equipment, Inc. | Method of making a rod guide with both high erodible wear volume and by-pass area |
US11135628B1 (en) * | 2014-10-24 | 2021-10-05 | Tri-State Environmental, LLC | Method and apparatus for cleaning an oil and gas well riser assembly with multiple tools simultaneously |
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