US2855757A - Seal for underground passage, and storage system embodying same - Google Patents
Seal for underground passage, and storage system embodying same Download PDFInfo
- Publication number
- US2855757A US2855757A US510197A US51019755A US2855757A US 2855757 A US2855757 A US 2855757A US 510197 A US510197 A US 510197A US 51019755 A US51019755 A US 51019755A US 2855757 A US2855757 A US 2855757A
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- US
- United States
- Prior art keywords
- plate
- passage
- concrete
- seal
- edge
- 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.)
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Links
- 239000000463 material Substances 0.000 description 18
- 238000007789 sealing Methods 0.000 description 15
- 239000011435 rock Substances 0.000 description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G5/00—Storing fluids in natural or artificial cavities or chambers in the earth
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/16—Modification of mine passages or chambers for storage purposes, especially for liquids or gases
Definitions
- This invention relates to a system for sealing a subterranean passage against uncontrolled vapor leakage. In another aspect, it relates to an underground storage system embodying such sealing system.
- Underground storage particularly of high vapor pressure materials such as propane, ammonia and the like, is
- a subterranean passage for example, part of an underground storage system such as an abandoned tunnel, is sealed by a transverse plate of metal which is impervious to the stored material. Where high pressure materials are stored, this plate is backed on one side, as by a concrete bulkhead, to prevent pressure of the stored material from dislodging it.
- the plate is impervious and all leakage of stored material must occur around the edges of the plate. This leakage is collected at a multiplicity of openings spaced around the edge of the plate and either vented or returned to the storage facility.
- this vapor collection system can be a pipe extending substantially the entire distance around the edge of the plate and having a plurality of orifices or openings formed therein for vapor collection purposes.
- the pipe can be wrapped with a permeable fibrous material, such as burlap, to prevent clogging of the openings by the surrounding rock.
- the aforementioned sealing means consists of a mass of concrete poured behind the plate on the cavern side of the bulkhead. This mass of concrete engages the plate at a zone bounded by the outer edge thereof and extending inwardly toward the center a sufficient distance as to substantially seal that zone of contact. Moreover, the concrete member substantially seals the zone of contact of the concrete with the rock. Any vapors leaking through both zones of ice contact are collected by a single pipe or other collector assembly as already described.
- Figure l is a vertical sectional view of a sealing system constructed in accordance with the invention.
- FIG. 2 is an end view of the sealing structure of Referring now to the drawings in detail, the storage system, as described, includes a storage region 10 which,-
- the passage 10 in the example shown, is an abandoned railway tunnel.
- the passage 10 can be a horizontal tunnel leading from a vertical shaft to an excavated underground storage facility, or it can be a portion of a vertical hole, such as an abandoned well, or a shaft extending downwardly to an excavated cavern.
- the sealing system can be applied to any underground passage where sealing is required.
- the stored material is a high vapor pressure material such as propane, ethane or ammonia.
- a high vapor pressure material such as propane, ethane or ammonia.
- propane, ethane or ammonia propane, ethane or ammonia.
- the pressure in the storage area 10 is substantially greater than that existing in the connecting or access portion 11 of the underground passage which, in most instances, communicates with the atmosphere.
- a plate 12 extends transversely of the passage and, in one specific application, includes a central member 12a conforming in shape with the abandoned railway tunnel to be used for storage and of somewhat larger dimensions than the tunnel.
- the plate includes a lower section 12b of generally rectangular cross section and an upper arched section 12c.
- Extending outwardly from the edges of the central portion 12a are a series of plates 12d which are welded together to form a unitary impervious plate assembly. It will be noted that the plate 12, therefore, is of considerably larger cross section than the tunnel so that the edges of the plate protrude into the rock beyond the tunnel walls.
- a backing means is required to hold the plate in position.
- Such backing means can take the form of a concrete bulkhead 13 abutting the plate 12 and engaging the central portion thereof.
- a sealing facility 18 is formed from a mass of concrete anchored in the rock defining the walls of the passage and engaging the entire outer edge 12 of the plate.
- the zone of contact 19 between the concrete and the plate extends inwardly from the edge of the plate a distance D suflicient to substantially seal this zone.
- the concrete mass 18 intersects the ground along a second zone 20 which extends a predetermined distance substantially parallel to the walls of the passage, as indicated by reference numeral 20a, and thence diagonally inward to the walls of the passage, as indicated by reference numeral 2%. It will be noted that any vapors leaking through either or both zones 19, 20 are thus directed to .a localized region around the edge 12] of the plate 12.
- these vapors are collected at a multiplicity of passages spaced around the edge of the plate, each passage terminating closely adjacent said edge of the plate.
- I provide a pipe assembly 21, formed from suitable pipe sections 21a and elbows or other fittings 21b, this assembly extending substantially or, in the example shown, completely around the edge of the plate 12 and closely adjacent thereto.
- This pipe is provided with a multiplicity of openings or passages, one of which is shown at 20c which are spaced around the edge 12f. Accordingly, the vapors leaking around the edge 12 from either of the zones 19 or 20, pass through the openings 20c into the pipe 21.
- the pipe 21 is wrapped with a layer 22 of coarse pervious fibrous material, such as burlap. This prevents clogging any of the openings provided in the pipe and provides a pathway for the escaping vapors to the nearest opening 200.
- a layer 22 of coarse pervious fibrous material such as burlap. This prevents clogging any of the openings provided in the pipe and provides a pathway for the escaping vapors to the nearest opening 200.
- the vapors collecting in the pipe 21 are withdrawn by a conduit 23 which extends through the concrete 18 into the passage and, thence, through the manway 14 in bulkhead 13 and the cap 16 to the outer portion 11 of the passage.
- the vapors thus collected can be vented harmlessly to the atmosphere or compressed and returned to the storage unit, as those skilled in the art will readily understand.
- the conduit 23 can, alternatively, extend to the outer portion of the passage in any other suitable manner.
- a subterranean passage forming a part of an underground storage system, an impervious metal plate extending transversely of said passage and forming a vapor seal in said passage, said plate being of substantially greater cross-sectional area than said passage so that the edges of the plate extend into the rock beyond the walls of the passage, a mass of concrete anchored in the rock and engaging one side of said plate at a zone bounded by the entire outer edge of said plate and extending inwardly toward the center of the plate a suflicient distance as to substantially seal a first zone of contact between the concrete and plate against the passage of vapors, said mass of concrete having a second zone of contact between it and the rock which extends, from the edge of the plate, a predetermined distance substantially parallel to the walls of said passage, and thence diagonally inward to the walls of the passage, a concrete bulkhead anchored in the rock and engaging the other side of said plate throughout a central area larger than the cross section of said passage, a pipe positioned in the ground adjacent said
- a subterranean passage forming a part of an underground storage system, an impervious metal plate extending transversely of said passage and forming a vapor seal in said passage, said plate being of substantially greater cross-sectional area than said passage so that the edges of the plate extend into the rock beyond the walls of the passage, a mass of concrete anchored in the rock and engaging one side of' said plate at a zone bounded by the entire outer edge of said plate and extending inwardly toward the center of the plate a sufficient distance as to substantially seal a first zone of contact between the concrete and plate against the passage of vapors, said mass of concrete having a second zone of contact between it and the rock which extends, from the edge of the plate, a predetermined distance substantially parallel to the walls of said passage, and thence diagonally inward to the walls of the passage, a concrete bulkhead anchored in the rock and engaging the other side of said plate throughout a central area larger than the cross section of said passage, a pipe positioned in the ground adjacent said other side
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Description
P. MEADE 2,855,757 SEAL FOR UNDERGROUND PASSAGE, AND STORAGE SYSTEM EMBODYING SAME I Filed may 25, 195s &
N at
a My A a v Y H INVENTOR.
ll Ill llllllll l LEONARD P. MEADE' United States Patent 9 SEAL FOR UNDERGROUND PASSAGE, AND STORAGE SYSTEM EMBODYING SAME Leonard P. Meade, Bartlesville, kla., assignor to Phillips Petroleum Company, a corporation of Delaware Application May 23, 1955, Serial No. 510,197
2 Claims. (Cl. 61-.5)
This invention relates to a system for sealing a subterranean passage against uncontrolled vapor leakage. In another aspect, it relates to an underground storage system embodying such sealing system.
Underground storage, particularly of high vapor pressure materials such as propane, ammonia and the like, is
now widely practiced in the petroleum and other industries. Oftentimes, such systems utilize either natural or excavated caverns for storage purposes. These can include, for example, excavated subterranean caverns, abandoned oil or gas wells, and abandoned railway tunnels. In both types of storage, it is necessary to seal an opening, usually an access opening, to the storage facility.
Previously, it has been proposed that such sealing be effected by concrete bulkheads. However, concrete is not sufficiently impervious to prevent leakage of the stored material, particularly where the stored material has a high vapor pressure. Various types of sealing compounds have been proposed both for application to concrete bulk-- heads, and for application to the rock walls of the cavern to efiect sealing thereof. However, insofar as I am aware, none of the coating materials thus far developed provides a coating which will prevent leakage over the extended period of time required for successful commercial operation. Moreover, leakage through the zone of contact between the bulkhead and the rock is .also a serious problem in installations of this type.
In accordance with this invention, a subterranean passage, for example, part of an underground storage system such as an abandoned tunnel, is sealed by a transverse plate of metal which is impervious to the stored material. Where high pressure materials are stored, this plate is backed on one side, as by a concrete bulkhead, to prevent pressure of the stored material from dislodging it. The plate is impervious and all leakage of stored material must occur around the edges of the plate. This leakage is collected at a multiplicity of openings spaced around the edge of the plate and either vented or returned to the storage facility.
, Specifically, this vapor collection system can be a pipe extending substantially the entire distance around the edge of the plate and having a plurality of orifices or openings formed therein for vapor collection purposes. Advantageously, the pipe can be wrapped with a permeable fibrous material, such as burlap, to prevent clogging of the openings by the surrounding rock.
In one important aspect of the invention, the aforementioned sealing means consists of a mass of concrete poured behind the plate on the cavern side of the bulkhead. This mass of concrete engages the plate at a zone bounded by the outer edge thereof and extending inwardly toward the center a sufficient distance as to substantially seal that zone of contact. Moreover, the concrete member substantially seals the zone of contact of the concrete with the rock. Any vapors leaking through both zones of ice contact are collected by a single pipe or other collector assembly as already described.
In this manner, an etficient seal is provided, and any vapors which may escape are caused to flow in guided paths to a single leakage collection system from which they are either vented harmlessly to the atmosphere or returned to the storage cavern.
Accordingly, it is an object of the invention to provide an improved sealing system for a subterranean passage which substantially prevents leakage, and permits any leakage which may occur to be readily collected for disposal, thus preventing leaking into the region of the passage in front of the sealing structure.
It is a further object to provide an improved underground storage system embodying such sealing means.
It is a still further object to provide such a system at a low cost, and with increased simplicity of construction and operation.
Various other objects, advantages and features of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:
Figure l is a vertical sectional view of a sealing system constructed in accordance with the invention;
Figure 2 is an end view of the sealing structure of Referring now to the drawings in detail, the storage system, as described, includes a storage region 10 which,-
in the example shown, is an abandoned railway tunnel. Alternatively, the passage 10 can be a horizontal tunnel leading from a vertical shaft to an excavated underground storage facility, or it can be a portion of a vertical hole, such as an abandoned well, or a shaft extending downwardly to an excavated cavern. In a still broader aspect, the sealing system can be applied to any underground passage where sealing is required.
Ordinarily, according to present economic conditions, the stored material is a high vapor pressure material such as propane, ethane or ammonia. However, the particular material stored is not of the essence of the invention, and
can be varied as desired. Generally, the pressure in the storage area 10 is substantially greater than that existing in the connecting or access portion 11 of the underground passage which, in most instances, communicates with the atmosphere.
A plate 12 extends transversely of the passage and, in one specific application, includes a central member 12a conforming in shape with the abandoned railway tunnel to be used for storage and of somewhat larger dimensions than the tunnel. Thus, the plate includes a lower section 12b of generally rectangular cross section and an upper arched section 12c. Extending outwardly from the edges of the central portion 12a are a series of plates 12d which are welded together to form a unitary impervious plate assembly. It will be noted that the plate 12, therefore, is of considerably larger cross section than the tunnel so that the edges of the plate protrude into the rock beyond the tunnel walls.
Where the material in the storage portion 10 is of high vapor pressure, a backing means is required to hold the plate in position. Such backing means can take the form of a concrete bulkhead 13 abutting the plate 12 and engaging the central portion thereof.
' bulkhead is of larger cross section than the tunnel but Preferably, the;
can extend through this'manway or through the bulkhead for introduction and withdrawal of the stored material. This is an optional feature, however, and any suitable means can be used for providing access to the storage cavern and for introduction or withdrawal of the stored material.
At the side 12a of the plate opposite the bulkhead 13, there is provided a sealing facility 18. In the example shown, this facility is formed from a mass of concrete anchored in the rock defining the walls of the passage and engaging the entire outer edge 12 of the plate. The zone of contact 19 between the concrete and the plate extends inwardly from the edge of the plate a distance D suflicient to substantially seal this zone. Moreover, the concrete mass 18 intersects the ground along a second zone 20 which extends a predetermined distance substantially parallel to the walls of the passage, as indicated by reference numeral 20a, and thence diagonally inward to the walls of the passage, as indicated by reference numeral 2%. It will be noted that any vapors leaking through either or both zones 19, 20 are thus directed to .a localized region around the edge 12] of the plate 12.
In accordance with the invention, these vapors are collected at a multiplicity of passages spaced around the edge of the plate, each passage terminating closely adjacent said edge of the plate. To this end, I provide a pipe assembly 21, formed from suitable pipe sections 21a and elbows or other fittings 21b, this assembly extending substantially or, in the example shown, completely around the edge of the plate 12 and closely adjacent thereto. This pipe is provided with a multiplicity of openings or passages, one of which is shown at 20c which are spaced around the edge 12f. Accordingly, the vapors leaking around the edge 12 from either of the zones 19 or 20, pass through the openings 20c into the pipe 21.
Preferably and advantageously, the pipe 21 is wrapped with a layer 22 of coarse pervious fibrous material, such as burlap. This prevents clogging any of the openings provided in the pipe and provides a pathway for the escaping vapors to the nearest opening 200.
The vapors collecting in the pipe 21 are withdrawn by a conduit 23 which extends through the concrete 18 into the passage and, thence, through the manway 14 in bulkhead 13 and the cap 16 to the outer portion 11 of the passage. The vapors thus collected can be vented harmlessly to the atmosphere or compressed and returned to the storage unit, as those skilled in the art will readily understand. The conduit 23 can, alternatively, extend to the outer portion of the passage in any other suitable manner.
It will be evident that I have provided an improved sealing system for an underground passage which substantially prevents leakage of stored material therethrough, even where the stored material is maintained at high pressure. Moreover, any leakage which does occur passes through control leakage paths to a single leakage collection system from which it can be vented harmlessly or returned to storage, thus eliminating loss of the material and obvious hazards which would result from leakage of the stored material into the outer portion 11 of the passage.
While the invention has been described in connection with a present, preferred embodiment, thereof, it is to be understood that this description is illustrative only and is not intended to limit the invention.
I claim: I
1. In an underground storage system, a subterranean passage forming a part of an underground storage system, an impervious metal plate extending transversely of said passage and forming a vapor seal in said passage, said plate being of substantially greater cross-sectional area than said passage so that the edges of the plate extend into the rock beyond the walls of the passage, a mass of concrete anchored in the rock and engaging one side of said plate at a zone bounded by the entire outer edge of said plate and extending inwardly toward the center of the plate a suflicient distance as to substantially seal a first zone of contact between the concrete and plate against the passage of vapors, said mass of concrete having a second zone of contact between it and the rock which extends, from the edge of the plate, a predetermined distance substantially parallel to the walls of said passage, and thence diagonally inward to the walls of the passage, a concrete bulkhead anchored in the rock and engaging the other side of said plate throughout a central area larger than the cross section of said passage, a pipe positioned in the ground adjacent said other side of said plate, said pipe extending substantially the entire distance around the edge of said plate, and said pipe having a multiplicity of openings spaced around said edge, each such opening terminating closely adjacent said edge, whereby fiuids leaking through both zones of contact enter said pipe, and a fluid withdrawal conduit connected to said pipe, said conduit extending from the edge of the plate through said mass of concrete to the interior of said subterranean passage and thence through said bulkhead.
2. In an underground storage system, a subterranean passage forming a part of an underground storage system, an impervious metal plate extending transversely of said passage and forming a vapor seal in said passage, said plate being of substantially greater cross-sectional area than said passage so that the edges of the plate extend into the rock beyond the walls of the passage, a mass of concrete anchored in the rock and engaging one side of' said plate at a zone bounded by the entire outer edge of said plate and extending inwardly toward the center of the plate a sufficient distance as to substantially seal a first zone of contact between the concrete and plate against the passage of vapors, said mass of concrete having a second zone of contact between it and the rock which extends, from the edge of the plate, a predetermined distance substantially parallel to the walls of said passage, and thence diagonally inward to the walls of the passage, a concrete bulkhead anchored in the rock and engaging the other side of said plate throughout a central area larger than the cross section of said passage, a pipe positioned in the ground adjacent said other side of said plate, said pipe extending substantially the entire distance around the edge of said plate, and said pipe having a multiplicity of openings spaced around said edge, each such opening terminating closely adjacent said edge, whereby fluids leaking through both zones of contact enter said pipe, and means to withdraw fluids from said pipe.
References Cited in the file of this patent UNITED STATES PATENTS 801,995 Kisner Oct. 17, 1905 1,229,437 Foster June 12, 1915 1,451,021 Hanson Apr. 10, 1923 2,333,315 Klingberg Nov. 2, 1943 2,433,896 Gay Jan. 6, 1948 2,459,227 Kerr Jan. 18, 1949 2,659,209 Phelps Nov. 17, 1953 2,697,539 Warner Dec. 21, 1954 FOREIGN PATENTS 68,070 Denmark Nov. 22, 1948
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US510197A US2855757A (en) | 1955-05-23 | 1955-05-23 | Seal for underground passage, and storage system embodying same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US510197A US2855757A (en) | 1955-05-23 | 1955-05-23 | Seal for underground passage, and storage system embodying same |
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US2855757A true US2855757A (en) | 1958-10-14 |
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US510197A Expired - Lifetime US2855757A (en) | 1955-05-23 | 1955-05-23 | Seal for underground passage, and storage system embodying same |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2981070A (en) * | 1955-08-31 | 1961-04-25 | Sohio Petroleum Company | Seal structure for underground liquid storage facility |
US3396539A (en) * | 1966-02-14 | 1968-08-13 | Inst Gas Technology | Vapor barrier means for underground storage system |
EP0013854A1 (en) * | 1978-12-28 | 1980-08-06 | Société française de stockage géologique "GEOSTOCK" (Société à responsabilité limitée) | Process and security device for the underground storage of a fluid under pressure |
US4265486A (en) * | 1979-08-20 | 1981-05-05 | Gulf Oil Corporation | Apparatus for in-situ retorting |
US4294563A (en) * | 1979-04-09 | 1981-10-13 | Occidental Oil Shale, Inc. | Thermally insulated bulkhead for in situ oil shale retort |
US4580924A (en) * | 1982-01-29 | 1986-04-08 | Societe Francaise De Stockage Geostock | Process and device for blocking a well opening out in the ceiling of an underground cavity for low temperature storage |
US4906132A (en) * | 1987-11-30 | 1990-03-06 | Deilmann-Haniel Gmbh | High-load underground dam |
US5046353A (en) * | 1989-01-26 | 1991-09-10 | Tracer Research Corporation | Underground pipe leak detection system |
US20150354903A1 (en) * | 2012-11-01 | 2015-12-10 | Skanska Sverige Ab | Thermal energy storage comprising an expansion space |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US801995A (en) * | 1905-02-02 | 1905-10-17 | Joseph L Sweigard | Well-strainer. |
US1229437A (en) * | 1916-10-09 | 1917-06-12 | William H Foster | Strainer. |
US1451021A (en) * | 1921-04-25 | 1923-04-10 | Hanson John | Water drain for windows |
US2333315A (en) * | 1938-09-05 | 1943-11-02 | Svenska Entreprenad Aktiebolag | Construction of underground tanks for storing liquid fuels and other fluids |
US2433896A (en) * | 1943-04-16 | 1948-01-06 | Frazer W Gay | Means for storing fluids for power generation |
US2459227A (en) * | 1946-08-06 | 1949-01-18 | Phillips Petroleum Co | Underground reservoir for the storage of liquefied gases |
US2659209A (en) * | 1951-03-23 | 1953-11-17 | Warren Petroleum Corp | Underground liquid storage facility and the method of selecting and preparing the same |
US2697539A (en) * | 1952-05-15 | 1954-12-21 | Ernest D Warner | Box with handle cover fastening means |
-
1955
- 1955-05-23 US US510197A patent/US2855757A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US801995A (en) * | 1905-02-02 | 1905-10-17 | Joseph L Sweigard | Well-strainer. |
US1229437A (en) * | 1916-10-09 | 1917-06-12 | William H Foster | Strainer. |
US1451021A (en) * | 1921-04-25 | 1923-04-10 | Hanson John | Water drain for windows |
US2333315A (en) * | 1938-09-05 | 1943-11-02 | Svenska Entreprenad Aktiebolag | Construction of underground tanks for storing liquid fuels and other fluids |
US2433896A (en) * | 1943-04-16 | 1948-01-06 | Frazer W Gay | Means for storing fluids for power generation |
US2459227A (en) * | 1946-08-06 | 1949-01-18 | Phillips Petroleum Co | Underground reservoir for the storage of liquefied gases |
US2659209A (en) * | 1951-03-23 | 1953-11-17 | Warren Petroleum Corp | Underground liquid storage facility and the method of selecting and preparing the same |
US2697539A (en) * | 1952-05-15 | 1954-12-21 | Ernest D Warner | Box with handle cover fastening means |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2981070A (en) * | 1955-08-31 | 1961-04-25 | Sohio Petroleum Company | Seal structure for underground liquid storage facility |
US3396539A (en) * | 1966-02-14 | 1968-08-13 | Inst Gas Technology | Vapor barrier means for underground storage system |
EP0013854A1 (en) * | 1978-12-28 | 1980-08-06 | Société française de stockage géologique "GEOSTOCK" (Société à responsabilité limitée) | Process and security device for the underground storage of a fluid under pressure |
US4294563A (en) * | 1979-04-09 | 1981-10-13 | Occidental Oil Shale, Inc. | Thermally insulated bulkhead for in situ oil shale retort |
US4265486A (en) * | 1979-08-20 | 1981-05-05 | Gulf Oil Corporation | Apparatus for in-situ retorting |
US4580924A (en) * | 1982-01-29 | 1986-04-08 | Societe Francaise De Stockage Geostock | Process and device for blocking a well opening out in the ceiling of an underground cavity for low temperature storage |
US4906132A (en) * | 1987-11-30 | 1990-03-06 | Deilmann-Haniel Gmbh | High-load underground dam |
US5046353A (en) * | 1989-01-26 | 1991-09-10 | Tracer Research Corporation | Underground pipe leak detection system |
US20150354903A1 (en) * | 2012-11-01 | 2015-12-10 | Skanska Sverige Ab | Thermal energy storage comprising an expansion space |
US9823026B2 (en) * | 2012-11-01 | 2017-11-21 | Skanska Sverige Ab | Thermal energy storage with an expansion space |
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