FR2424551A1 - Procede de detection d'absence de ciment ou de poches de dissolution dans des trous de sondage - Google Patents

Procede de detection d'absence de ciment ou de poches de dissolution dans des trous de sondage

Info

Publication number
FR2424551A1
FR2424551A1 FR7812512A FR7812512A FR2424551A1 FR 2424551 A1 FR2424551 A1 FR 2424551A1 FR 7812512 A FR7812512 A FR 7812512A FR 7812512 A FR7812512 A FR 7812512A FR 2424551 A1 FR2424551 A1 FR 2424551A1
Authority
FR
France
Prior art keywords
borehole
porosity
earth formations
source
cement voids
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.)
Withdrawn
Application number
FR7812512A
Other languages
English (en)
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.)
Texaco Development Corp
Original Assignee
Texaco Development Corp
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 Texaco Development Corp filed Critical Texaco Development Corp
Priority to FR7812512A priority Critical patent/FR2424551A1/fr
Publication of FR2424551A1 publication Critical patent/FR2424551A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G01V5/10—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources
    • G01V5/107—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources and detecting reflected or back-scattered neutrons

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PROCEDE ET APPAREIL DE DIAGRAPHIE RADIOLOGIQUE DE PUITS DE SONDAGE. ON UTILISE UNE SOURCE 11 DE NEUTRONS RAPIDES POUR IRRADIER DES FORMATIONS DE SOL AU VOISINAGE D'UN TROU DE SONDE D'UN PUITS. ON UTILISE DEUX DETECTEURS 12, 13 DE NEUTRONS EPITHERMIQUES POUR ECHANTILLONNER LA POPULATION DES NEUTRONS EPITHERMIQUES A DEUX DISTANCES DIFFERENCES DE LA SOURCE. ON OBTIENT UNE POROSITE COMPENSEE DE LA FORMATION D'APRES LE RAPPORT ENTRE LES TAUX DE COMPTAGE AUX DEUX DETECTEURS, ET UNE POROSITE NON COMPENSEE D'APRES LE TAUX DE COMPTAGE AU DETECTEUR LE PLUS RAPPROCHE DE LA SOURCE. ON LOCALISE LES REGIONS DES POCHES DE DISSOLUTION OU D'ABSENCE DE CIMENT EN COMPARANT ENTRE ELLES LES VALEURS DE LA POROSITE NON COMPENSEE ET DE LA POROSITE COMPENSEE. APPLICATION A LA MESURE DE LA PORISITE DU SOL ET DES DEFAUTS DANS LA STRUCTURE DU PUITS DE SONDAGE.
FR7812512A 1978-04-27 1978-04-27 Procede de detection d'absence de ciment ou de poches de dissolution dans des trous de sondage Withdrawn FR2424551A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7812512A FR2424551A1 (fr) 1978-04-27 1978-04-27 Procede de detection d'absence de ciment ou de poches de dissolution dans des trous de sondage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7812512A FR2424551A1 (fr) 1978-04-27 1978-04-27 Procede de detection d'absence de ciment ou de poches de dissolution dans des trous de sondage

Publications (1)

Publication Number Publication Date
FR2424551A1 true FR2424551A1 (fr) 1979-11-23

Family

ID=9207659

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7812512A Withdrawn FR2424551A1 (fr) 1978-04-27 1978-04-27 Procede de detection d'absence de ciment ou de poches de dissolution dans des trous de sondage

Country Status (1)

Country Link
FR (1) FR2424551A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121463A2 (fr) * 1983-04-05 1984-10-10 Institut Français du Pétrole Méthode et dispositif permettant d'obtenir des informations relatives à des matières organiques ou minérales susceptibles d'être contenues dans des formations géologiques

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774033A (en) * 1972-05-17 1973-11-20 Texaco Inc Dual spaced epithermal neutron detector porosity logging
US3823319A (en) * 1970-08-21 1974-07-09 Schlumberger Technology Corp Porosity determination with mudcake correction
FR2228227A1 (fr) * 1973-05-01 1974-11-29 Schlumberger Prospection

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823319A (en) * 1970-08-21 1974-07-09 Schlumberger Technology Corp Porosity determination with mudcake correction
US3774033A (en) * 1972-05-17 1973-11-20 Texaco Inc Dual spaced epithermal neutron detector porosity logging
FR2228227A1 (fr) * 1973-05-01 1974-11-29 Schlumberger Prospection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121463A2 (fr) * 1983-04-05 1984-10-10 Institut Français du Pétrole Méthode et dispositif permettant d'obtenir des informations relatives à des matières organiques ou minérales susceptibles d'être contenues dans des formations géologiques
EP0121463A3 (en) * 1983-04-05 1986-08-20 Institut Francais Du Petrole Method and device to get information about organic or mineral matter susceptible to be contained in geological formations

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FR2424551A1 (fr) Procede de detection d'absence de ciment ou de poches de dissolution dans des trous de sondage

Legal Events

Date Code Title Description
ST Notification of lapse