US2329157A - Well-treating tool - Google Patents
Well-treating tool Download PDFInfo
- Publication number
- US2329157A US2329157A US39106141A US2329157A US 2329157 A US2329157 A US 2329157A US 39106141 A US39106141 A US 39106141A US 2329157 A US2329157 A US 2329157A
- Authority
- US
- United States
- Prior art keywords
- well
- acid
- tool
- treating tool
- treating
- 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
- 239000002253 acid Substances 0.000 description 14
- 238000007789 sealing Methods 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/1624—Destructible or deformable element controlled
Definitions
- This invention relates to an improvement in a well treating tool adapted to deliver one or more high velocity streams or .jets of acid solution into a well bore against the face ofthe formation, well casing, or other parts of the Well.
- Fig. 2 the housing 6 of the acidizing tool is shown connected atits upper end to a swage nipple 1 by means of coupling or collar 8.
- the reduced vend of nipple 'I is threaded for connection to the conduit 3 whichv may suitably be the Well tubing.
- the housing is provided Withplug members r9 which are attached to the housing as by welding.
- the plug members 9 are internally threaded for 1 threaded engagement with the saukers I through which the acid issues into the well bore.
- an orifice member I0 is shown with a small suddenly or port I I centrally located therein.
- the suddenly I I is counterbored at the outlet so as to form anenlarged recess I2 into which a dome-shaped readily acid-soluble metal disk I3 is pressed to act as a seal for the orifice.
- Fig. l is a somewhat diagrammatical elevational vieW of a well bore showing the tool positioned adjacent a section ofthe formation it is Y desired to treat.
- n adapted to cover the orifice.
- Fig. is a cross-sectional view taken along lines 5,-5 of Fig. 4.
- v is suspended in the well bore 2 by means of a suitable conduit 3.
- High velocity streams of acid 4 are The dome-like shape of the readily acid-soluble metal disk will be more readily appreciated with i and upon coming intoV contact with the readily acid-soluble sealing disks will rapidly dissolve them so that the acid solution will have ready access to the Well bore. Pressure will then be applied to the acid to force it from the tool in high velocity streams or jets.
- the pressure employed may vary quite widely as from a few hundred upto 3,000 pounds per square inch.
- the acid solution to employ will, of course, depend upon the use for which it is intended. In generaLwhen treating a producing formation or bringing about the disintegration of cement, hydrochloric acid or a mixture of hydrochloric acid and hydroiiuoric acidv will be employed. y
- the readily acid-soluble metal sealing disks are most suitably made of magnesium metal.
- magnesium used herein and in the appended claims is intended to include the magnesium of commerce which contains small amounts of impurities such as iron, copper, and the like as Well as' alloys of magnesium in which 'this metal is the predominant constituent.
- Mag- '2,329,157 Y "Y I nesium is very readily soluble in most acids and is very rapidly dissolved by both uninhibited and inhibited hydrochloric acid.
- the sealing disks employed for the purpose at hand may vary quite Widely in thickness. Generally illustrative of a suitable thickness is from 11g to 1A; of an inch. It has been found desirable t to form the disks so that theyl will have avdomelike shape schislisiiliustraedfisince .larger area will be 'r'rp'sed' to the action Yof the acid,
- plug members attached to the housing havlgoribes therenffl 5 plug members in sealing relation.
- a well treating tool adapted to deliver a high velocity stream ofy acid to a Well bore
- the combination which includes av conduit, a housing aidaptaptfdto"bedconnectdto 'the “conduit, plug 1o members attached to saidhousing having orifices p therein through which acid may issue from the and dome-shaped magnesium metal disks engag- 'lngith counter-bored recesses in the plug mem'- ersfin' 'sealing feiation.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- ing And Chemical Polishing (AREA)
Description
Sept.l '4"flh943` .m w. FRAcK '2329557 WELL Tnx-:mina mor.. luna@ Apri; so.' i941 A T 'TORNEi/S.
Patente-d Sept. 7, 1943 Dow .Chemical Company Midland,Mich.'a
corporation of Michigan Application April 30, 1941,.
2 claims. (o1. 16e-2o) This invention relates to an improvement in a well treating tool adapted to deliver one or more high velocity streams or .jets of acid solution into a well bore against the face ofthe formation, well casing, or other parts of the Well.
, In treating wellswherein a tool is employed to direct a series of high velocity streams of acid .against various portions of the well bore, -it oftentimes happens that it is desirable to seal the orices through which the acid issues during the period the tool is being positioned at the desired location in the well bore. Placing a seal over the orifices is desirable in order to eliminate the possibility of sand, or mud entering the tool through the orifices and exerting a plugging action by becoming lodged in the small passageways through which the fluid passes. It is alsodesirable to prevent entry of fluid 'into a treating tool of this type since any uid which enters the tool must be forced therefrom through the ysmall orices therein, and as a result more time is required to complete a treatment. Such sealing means should, however, be readily removable after the treating tool has been positioned at vthe desired location in the `Well bore.
It is, therefore, the principal object of ths'invention to provide an acidY treating tool having sealing .covers for the orifices through which the acid solution isto be ejected, said covers being characterized by being readily removable after the acidizing tool has been positioned in the well Y bore at the desired location.
xshown issuing from the tool I and impinging against theface of the formation at5. f
In the more detailed View of Fig. 2 the housing 6 of the acidizing tool is shown connected atits upper end to a swage nipple 1 by means of coupling or collar 8. The reduced vend of nipple 'I is threaded for connection to the conduit 3 whichv may suitably be the Well tubing. At intervals the housing is provided Withplug members r9 which are attached to the housing as by welding. The plug members 9 are internally threaded for 1 threaded engagement with the orice members I through which the acid issues into the well bore.
In the enlarged detailed view of Fig. 3 an orifice member I0 is shown with a small orice or port I I centrally located therein. The orice I I is counterbored at the outlet so as to form anenlarged recess I2 into which a dome-shaped readily acid-soluble metal disk I3 is pressed to act as a seal for the orifice.
Other objects and advantages will be apparent as the description of the invention proceeds'.
The invention will be more readily understood from the following description taken in connection with the accompanying drawing wherein:
Fig. l is a somewhat diagrammatical elevational vieW of a well bore showing the tool positioned adjacent a section ofthe formation it is Y desired to treat.
n adapted to cover the orifice.
Fig. is a cross-sectional view taken along lines 5,-5 of Fig. 4.
As shown in Fig. 1, the acidizmgtom |v is suspended in the well bore 2 by means of a suitable conduit 3. High velocity streams of acid 4 are The dome-like shape of the readily acid-soluble metal disk will be more readily appreciated with i and upon coming intoV contact with the readily acid-soluble sealing disks will rapidly dissolve them so that the acid solution will have ready access to the Well bore. Pressure will then be applied to the acid to force it from the tool in high velocity streams or jets. The pressure employed may vary quite widely as from a few hundred upto 3,000 pounds per square inch.
The acid solution to employ will, of course, depend upon the use for which it is intended. In generaLwhen treating a producing formation or bringing about the disintegration of cement, hydrochloric acid or a mixture of hydrochloric acid and hydroiiuoric acidv will be employed. y
The readily acid-soluble metal sealing disks are most suitably made of magnesium metal. The term magnesium used herein and in the appended claims is intended to include the magnesium of commerce which contains small amounts of impurities such as iron, copper, and the like as Well as' alloys of magnesium in which 'this metal is the predominant constituent. Mag- '2,329,157 Y "Y I nesium is very readily soluble in most acids and is very rapidly dissolved by both uninhibited and inhibited hydrochloric acid.
The sealing disks employed for the purpose at hand may vary quite Widely in thickness. Generally illustrative of a suitable thickness is from 11g to 1A; of an inch. It has been found desirable t to form the disks so that theyl will have avdomelike shape schislisiiliustraedfisince .larger area will be 'r'rp'sed' to the action Yof the acid,
assuring more immediate and complete removalr A.
" housing into the Well bore, said plug members lhavingccunterbored recesses about the orifices,
of the sealing covers.
I claim:
1.v In a. Well treating tool vadapted yto deliver am I K high velocity stream of acid to'lthe'vv'eli'fbcrte, the combination which includes ahhusin'g' adapted'to.
be connected to the well tubing, plug members attached to the housing havlgoribes therenffl 5 plug members in sealing relation.
2. In a well treating tool adapted to deliver a high velocity stream ofy acid to a Well bore, the combination which includes av conduit, a housing aidaptefdto"bedconnectdto 'the "conduit, plug 1o members attached to saidhousing having orifices p therein through which acid may issue from the and dome-shaped magnesium metal disks engag- 'lngith counter-bored recesses in the plug mem'- ersfin' 'sealing feiation. MORRIS W. FRACK.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39106141 US2329157A (en) | 1941-04-30 | 1941-04-30 | Well-treating tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39106141 US2329157A (en) | 1941-04-30 | 1941-04-30 | Well-treating tool |
Publications (1)
Publication Number | Publication Date |
---|---|
US2329157A true US2329157A (en) | 1943-09-07 |
Family
ID=23545060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US39106141 Expired - Lifetime US2329157A (en) | 1941-04-30 | 1941-04-30 | Well-treating tool |
Country Status (1)
Country | Link |
---|---|
US (1) | US2329157A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2638167A (en) * | 1948-06-28 | 1953-05-12 | Edward N Jones | Seal for well tubing |
US2758653A (en) * | 1954-12-16 | 1956-08-14 | Floyd H Desbrow | Apparatus for penetrating and hydraulically eracturing well formations |
US3052298A (en) * | 1960-03-22 | 1962-09-04 | Shell Oil Co | Method and apparatus for cementing wells |
US3450203A (en) * | 1967-03-09 | 1969-06-17 | Mini Petrolului | Device for well casing perforation with an abrasive fluid jet |
US4046199A (en) * | 1976-07-06 | 1977-09-06 | Union Oil Company Of California | Steam injection apparatus and method |
US4441557A (en) * | 1980-10-07 | 1984-04-10 | Downhole Services, Inc. | Method and device for hydraulic jet well cleaning |
US5462129A (en) * | 1994-04-26 | 1995-10-31 | Canadian Fracmaster Ltd. | Method and apparatus for erosive stimulation of open hole formations |
US20230003112A1 (en) * | 2021-06-30 | 2023-01-05 | Saudi Arabian Oil Company | Downhole ceramic disk dissolving in acid and well stimulation in single downhole activity |
-
1941
- 1941-04-30 US US39106141 patent/US2329157A/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2638167A (en) * | 1948-06-28 | 1953-05-12 | Edward N Jones | Seal for well tubing |
US2758653A (en) * | 1954-12-16 | 1956-08-14 | Floyd H Desbrow | Apparatus for penetrating and hydraulically eracturing well formations |
US3052298A (en) * | 1960-03-22 | 1962-09-04 | Shell Oil Co | Method and apparatus for cementing wells |
US3450203A (en) * | 1967-03-09 | 1969-06-17 | Mini Petrolului | Device for well casing perforation with an abrasive fluid jet |
US4046199A (en) * | 1976-07-06 | 1977-09-06 | Union Oil Company Of California | Steam injection apparatus and method |
US4441557A (en) * | 1980-10-07 | 1984-04-10 | Downhole Services, Inc. | Method and device for hydraulic jet well cleaning |
US5462129A (en) * | 1994-04-26 | 1995-10-31 | Canadian Fracmaster Ltd. | Method and apparatus for erosive stimulation of open hole formations |
US20230003112A1 (en) * | 2021-06-30 | 2023-01-05 | Saudi Arabian Oil Company | Downhole ceramic disk dissolving in acid and well stimulation in single downhole activity |
US11708753B2 (en) * | 2021-06-30 | 2023-07-25 | Saudi Arabian Oil Company | Downhole ceramic disk dissolving in acid and well stimulation in single downhole activity |
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