FR1304162A - Improvements to sealed core barrels - Google Patents

Improvements to sealed core barrels

Info

Publication number
FR1304162A
FR1304162A FR870599A FR870599A FR1304162A FR 1304162 A FR1304162 A FR 1304162A FR 870599 A FR870599 A FR 870599A FR 870599 A FR870599 A FR 870599A FR 1304162 A FR1304162 A FR 1304162A
Authority
FR
France
Prior art keywords
sealed core
core barrels
barrels
sealed
core
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
Application number
FR870599A
Other languages
French (fr)
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Priority to FR870599A priority Critical patent/FR1304162A/en
Application granted granted Critical
Publication of FR1304162A publication Critical patent/FR1304162A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • E02D1/04—Sampling of soil
    • 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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/08—Coating, freezing, consolidating cores; Recovering uncontaminated cores or cores at formation pressure

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Soil Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
FR870599A 1961-08-10 1961-08-10 Improvements to sealed core barrels Expired FR1304162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR870599A FR1304162A (en) 1961-08-10 1961-08-10 Improvements to sealed core barrels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR870599A FR1304162A (en) 1961-08-10 1961-08-10 Improvements to sealed core barrels

Publications (1)

Publication Number Publication Date
FR1304162A true FR1304162A (en) 1962-09-21

Family

ID=8761122

Family Applications (1)

Application Number Title Priority Date Filing Date
FR870599A Expired FR1304162A (en) 1961-08-10 1961-08-10 Improvements to sealed core barrels

Country Status (1)

Country Link
FR (1) FR1304162A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063188A1 (en) * 1981-04-15 1982-10-27 The Texas A&M University System Apparatus and method for obtaining a core at in situ pressure
CN109025875A (en) * 2018-08-13 2018-12-18 中国地质科学院勘探技术研究所 A kind of built-in steel-ball type hydraulic differential mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063188A1 (en) * 1981-04-15 1982-10-27 The Texas A&M University System Apparatus and method for obtaining a core at in situ pressure
CN109025875A (en) * 2018-08-13 2018-12-18 中国地质科学院勘探技术研究所 A kind of built-in steel-ball type hydraulic differential mechanism
CN109025875B (en) * 2018-08-13 2024-05-14 中国地质科学院勘探技术研究所 Hydraulic differential mechanism with built-in steel balls

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