CA2120675A1 - Cavern Well Pressure Trap - Google Patents

Cavern Well Pressure Trap

Info

Publication number
CA2120675A1
CA2120675A1 CA2120675A CA2120675A CA2120675A1 CA 2120675 A1 CA2120675 A1 CA 2120675A1 CA 2120675 A CA2120675 A CA 2120675A CA 2120675 A CA2120675 A CA 2120675A CA 2120675 A1 CA2120675 A1 CA 2120675A1
Authority
CA
Canada
Prior art keywords
casing
well
lateral bore
entry
pressure trap
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.)
Granted
Application number
CA2120675A
Other languages
French (fr)
Other versions
CA2120675C (en
Inventor
Gregory D. Hladun
Jacques G. Bourque
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Oil Resources Ltd
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA002120675A priority Critical patent/CA2120675C/en
Publication of CA2120675A1 publication Critical patent/CA2120675A1/en
Application granted granted Critical
Publication of CA2120675C publication Critical patent/CA2120675C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
    • E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

A pressure trap for a producer well of a subterranean pressurized fluid storage system, the well being lined with a casing having a casing interior connected with a subterranean pressurized fluid storage cavity through a lateral bore, includes a divider for dividing off a chamber from a lower portion of the casing interior which chamber communicates with and extends to a selected level below an entry of the lateral bore into the well casing, and a passage for fluid communication between the chamber and a remainder of the casing interior and below the entry of the lateral bore. The divider is preferably a combination of a cylindrical liner having upper and lower ends respectively positioned above and below the entry of the lateral bore, and an annular packer sealing between the liner and the well casing above the entry of the lateral bore. Methods of providing a pressure trap and sealing a producer well are also disclosed. The pressure trap can be installed at lower cost, as a retrofit in existing casings, or as a backup to failed conventional arrangement installed outside the well casing.
CA002120675A 1994-04-06 1994-04-06 Cavern well pressure trap Expired - Lifetime CA2120675C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002120675A CA2120675C (en) 1994-04-06 1994-04-06 Cavern well pressure trap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002120675A CA2120675C (en) 1994-04-06 1994-04-06 Cavern well pressure trap

Publications (2)

Publication Number Publication Date
CA2120675A1 true CA2120675A1 (en) 1994-08-29
CA2120675C CA2120675C (en) 1998-01-06

Family

ID=4153320

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002120675A Expired - Lifetime CA2120675C (en) 1994-04-06 1994-04-06 Cavern well pressure trap

Country Status (1)

Country Link
CA (1) CA2120675C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107842392A (en) * 2017-10-31 2018-03-27 清华大学 A kind of salt cave caisson
CN107905844A (en) * 2017-10-31 2018-04-13 中国科学院武汉岩土力学研究所 The old chamber of salt mine adopts space gas injection row's halogen method entirely
CN111520133A (en) * 2019-02-01 2020-08-11 中国石油化工股份有限公司 Method for determining volume of hole in stratum
CN117722233A (en) * 2023-11-23 2024-03-19 中能建数字科技集团有限公司 Capacity expansion method for reconstructing salt cavern into energy storage warehouse

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107842392A (en) * 2017-10-31 2018-03-27 清华大学 A kind of salt cave caisson
CN107905844A (en) * 2017-10-31 2018-04-13 中国科学院武汉岩土力学研究所 The old chamber of salt mine adopts space gas injection row's halogen method entirely
CN107905844B (en) * 2017-10-31 2019-06-25 中国科学院武汉岩土力学研究所 Halogen method is arranged in salt mine old chamber Quan Caidong space gas injection
CN111520133A (en) * 2019-02-01 2020-08-11 中国石油化工股份有限公司 Method for determining volume of hole in stratum
CN117722233A (en) * 2023-11-23 2024-03-19 中能建数字科技集团有限公司 Capacity expansion method for reconstructing salt cavern into energy storage warehouse

Also Published As

Publication number Publication date
CA2120675C (en) 1998-01-06

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20140407