US2330110A - Method for placing explosives in shooting wells - Google Patents
Method for placing explosives in shooting wells Download PDFInfo
- Publication number
- US2330110A US2330110A US417276A US41727641A US2330110A US 2330110 A US2330110 A US 2330110A US 417276 A US417276 A US 417276A US 41727641 A US41727641 A US 41727641A US 2330110 A US2330110 A US 2330110A
- Authority
- US
- United States
- Prior art keywords
- tamp
- wells
- bore hole
- shooting
- explosive
- 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
- 239000002360 explosive Substances 0.000 title description 14
- 238000000034 method Methods 0.000 title description 6
- 239000000463 material Substances 0.000 description 21
- 239000002253 acid Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- -1 alumlnum Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 description 1
- 229940005991 chloric acid Drugs 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
Definitions
- the present invention is directed to a method for completing wells.
- weighting material placed above the explosive charge is substantial. It is customary to use 1000 pounds of weighting material above explosive charges in a '7 inch hole under some conditions, and this material must be removed from the bore hole after the shot. It is customary to use gravel as the tamping material and to remove the gravel by bailing to clean out the hole. It will be evident that the removal of such large amounts of material by bailing or by similar mechanical methods is rather tedious and expensive.
- the weighting material placed above the explosive charge in shooting oil wells is of a type which may be removed by suitable liquid reaction.
- the employment oi such material in shooting wells allows the elimination of the mechanical bailing or the tamping material.
- pellets of zinc are particularly suitable for employment as the tamping material when shooting wells.
- This material is readily acid soluble and after the-explosive charge has been detonated, 'acid may be introduced into the bore hole to dissolve the pellets, thereby making any mechanical bailing for removing the tamping material unnecessary.
- materials other than zinc may be employed to form a readily soluble tamp.
- other metals such as alumlnum, or readily soluble non-metals, such as calcium carbonate, may be used.
- a suitable agent for reacting with the material used as a tamp should be selected.
- hydro- 5 chloric acid is the preferred reagent to employ in conjunction with acid soluble materials, other acids, such as sulfuric, are available, andif acid is notca suitable solvent for the material used as the tamp, an appropriate solvent should be selected.
- a method ofcompleting a bore hole comprising the steps of introducing into said bore hole a charge of explosive arranged in a sealed 4 soluble container, placing a substantial amount of weightingmaterial soluble in the same reagent as said containerabove said explosive charge as a tamp, detonating said explosive 5 charge, introducing into said well a reagent capable of reacting with both said tamp and the.
Description
Patented Sept. 21, 1943 UNITED STATES METHOD FOR PLACING EXPLOSIVES IN SHOOTING'WELLS Rudolph C. Buchan, Houston, Tex., assignor to Standard Oil Development Company, a corporation of Delaware No Drawing. Application October 31,- 1941, Serial No. 417,276
3 Claims.
The present invention is directed to a method for completing wells.
In the completion of wells it is common under some conditions to detonate a charge of-explosives in the bore hole adjacent the producing formation to initiate or increase the production of fluid from the formation. In conducting this procedure it is customary to encase' the explosive in a suitable container and lower it to the desired position in the bore hole. In many cases, it is also desirable to place 'a quantity of weighting material or a tamp above the charge in order to insure satisfactory results from the shooting of the charge.
In many instances the amount of weighting material placed above the explosive charge is substantial. It is customary to use 1000 pounds of weighting material above explosive charges in a '7 inch hole under some conditions, and this material must be removed from the bore hole after the shot. It is customary to use gravel as the tamping material and to remove the gravel by bailing to clean out the hole. It will be evident that the removal of such large amounts of material by bailing or by similar mechanical methods is rather tedious and expensive. z
In accordance with the present invention the weighting material placed above the explosive charge in shooting oil wells is of a type which may be removed by suitable liquid reaction. The employment oi such material in shooting wells allows the elimination of the mechanical bailing or the tamping material.
I have discovered that pellets of zinc are particularly suitable for employment as the tamping material when shooting wells. This material is readily acid soluble and after the-explosive charge has been detonated, 'acid may be introduced into the bore hole to dissolve the pellets, thereby making any mechanical bailing for removing the tamping material unnecessary. Moreover, in many instances it is advantageous to introduce acid into the bore hole adjacent the producing formation in order to increase the production of the formation.
In carryipg out the invention of the present application, a number of advantageous results may be obtained, namely, the removal of the solid tamping material, the release of hydrogen adjacent the producing formation to aid in the initiation and production from the formation and, in addition, the action of the acid introduced in the bore hole upon the producing formation.
It will be apparent that materials other than zinc may be employed to form a readily soluble tamp. For example, other metals, such as alumlnum, or readily soluble non-metals, such as calcium carbonate, may be used. It will also be obvious that a suitable agent for reacting with the material used as a tamp should be selected. For example, while inhibited hydro- 5 chloric acid is the preferred reagent to employ in conjunction with acid soluble materials, other acids, such as sulfuric, are available, andif acid is notca suitable solvent for the material used as the tamp, an appropriate solvent should be selected.
It is customary to enclose the explosive charge in sealed metal cans before lowering in the bore hole, and it is advantageous in practicing the present invention to construct the cans of a material which is soluble in the same reaction used' for dissolving the tamps, thereby insuring that no metal scrapwill remain in the bore hole. a
When employing zinc particles as the tamping material, it will accordingly be desirable to conwhereby the can and the metal scrap from the tamp will be dissolved by suitable acid treatment.- It will be obvious that other materials may be used for constructing the container, as desired.
of the present invention, it will be apparent that various changes may be made without depart-- ily soluble weighting material above said charge of explosive as a tamp, detonating said explosivecharge, and introducing .into said bore hole a reagent capable of dissolving said tamp and allowing said reagentto remain, in contact with said tamp until substantially all oi the.
weighting material has been dissolved.
2. A method ofcompleting a bore hole comprising the steps of introducing into said bore hole a charge of explosive arranged in a sealed 4 soluble container, placing a substantial amount of weightingmaterial soluble in the same reagent as said containerabove said explosive charge as a tamp, detonating said explosive 5 charge, introducing into said well a reagent capable of reacting with both said tamp and the.
remnants of said container, and retaining. said fluid in contact therewith for a suflicient length of time to dissolve substantially all of said tampand the remnants of said container. 3 '3.'A method according to claim 1 in which zinc pellets. are used for said tamp and hydrochloric acid as the reagent.
Y RUDOLPH C. BUCHAN.
struct the containers for the explosive of .zinc,
While I have disclosed specific embodiments bore hole, placing a substantial amount of read-"
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US417276A US2330110A (en) | 1941-10-31 | 1941-10-31 | Method for placing explosives in shooting wells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US417276A US2330110A (en) | 1941-10-31 | 1941-10-31 | Method for placing explosives in shooting wells |
Publications (1)
Publication Number | Publication Date |
---|---|
US2330110A true US2330110A (en) | 1943-09-21 |
Family
ID=23653293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US417276A Expired - Lifetime US2330110A (en) | 1941-10-31 | 1941-10-31 | Method for placing explosives in shooting wells |
Country Status (1)
Country | Link |
---|---|
US (1) | US2330110A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2707436A (en) * | 1950-08-17 | 1955-05-03 | Hugh D Mccool | Method of fracturing subsurface formations |
US2749990A (en) * | 1951-10-23 | 1956-06-12 | Phillips Petroleum Co | Kick-off for gas-lift wells |
US3003558A (en) * | 1955-08-01 | 1961-10-10 | Jersey Prod Res Co | Method of removing debris from well bores |
US5736669A (en) * | 1995-11-17 | 1998-04-07 | The Ensign-Bickford Company | Systems for bioremediating explosives |
US5763815A (en) * | 1995-11-17 | 1998-06-09 | The Ensign-Bickford Company | Apparatus for bioemediating explosives |
US6120627A (en) * | 1995-11-17 | 2000-09-19 | The Ensign-Bickford Company | Explosive with bioremediating capacity |
US6334395B1 (en) | 1995-11-17 | 2002-01-01 | The Ensign-Bickford Company | Methods, apparatus, and systems for accelerated bioremediation of explosives |
-
1941
- 1941-10-31 US US417276A patent/US2330110A/en not_active Expired - Lifetime
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2707436A (en) * | 1950-08-17 | 1955-05-03 | Hugh D Mccool | Method of fracturing subsurface formations |
US2749990A (en) * | 1951-10-23 | 1956-06-12 | Phillips Petroleum Co | Kick-off for gas-lift wells |
US3003558A (en) * | 1955-08-01 | 1961-10-10 | Jersey Prod Res Co | Method of removing debris from well bores |
US5736669A (en) * | 1995-11-17 | 1998-04-07 | The Ensign-Bickford Company | Systems for bioremediating explosives |
US5763815A (en) * | 1995-11-17 | 1998-06-09 | The Ensign-Bickford Company | Apparatus for bioemediating explosives |
US6120627A (en) * | 1995-11-17 | 2000-09-19 | The Ensign-Bickford Company | Explosive with bioremediating capacity |
US6334395B1 (en) | 1995-11-17 | 2002-01-01 | The Ensign-Bickford Company | Methods, apparatus, and systems for accelerated bioremediation of explosives |
US6644200B1 (en) | 1995-11-17 | 2003-11-11 | The Ensign-Bickford Company | Method for bioremediating undetonated explosive device |
US6660112B1 (en) | 1995-11-17 | 2003-12-09 | The Ensign-Bickford Company | Method for manufacturing explosive device having self-remediating capacity |
US6668725B2 (en) | 1995-11-17 | 2003-12-30 | The Ensign-Brickford Company | Methods, apparatus, and systems for accelerated bioremediation of explosives |
US20040250674A1 (en) * | 1995-11-17 | 2004-12-16 | The Ensign-Bickford Company | Method for bioremediating undetonated explosive device |
US20040260141A1 (en) * | 1995-11-17 | 2004-12-23 | The Ensign-Bickford Company | Explosive device with accelerated biorediation capacity |
US7077044B2 (en) | 1995-11-17 | 2006-07-18 | Dyno Nobel Inc. | Method for bioremediating undetonated explosive device |
US7240618B2 (en) | 1995-11-17 | 2007-07-10 | Dyno Nobel Inc. | Explosive device with accelerated bioremediation capacity |
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