FR2228228A1 - Diagraphy data treatment - for evaluating the hydrocarbon content of underground formations from the water saturation and porosity - Google Patents

Diagraphy data treatment - for evaluating the hydrocarbon content of underground formations from the water saturation and porosity

Info

Publication number
FR2228228A1
FR2228228A1 FR7414798A FR7414798A FR2228228A1 FR 2228228 A1 FR2228228 A1 FR 2228228A1 FR 7414798 A FR7414798 A FR 7414798A FR 7414798 A FR7414798 A FR 7414798A FR 2228228 A1 FR2228228 A1 FR 2228228A1
Authority
FR
France
Prior art keywords
formation
porosity
diagraphy
resistivity
water
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
FR7414798A
Other languages
French (fr)
Other versions
FR2228228B1 (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.)
Services Petroliers Schlumberger SA
Original Assignee
Societe de Prospection Electrique Schlumberger SA
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
Priority claimed from GB2061173A external-priority patent/GB1473096A/en
Application filed by Societe de Prospection Electrique Schlumberger SA filed Critical Societe de Prospection Electrique Schlumberger SA
Publication of FR2228228A1 publication Critical patent/FR2228228A1/en
Application granted granted Critical
Publication of FR2228228B1 publication Critical patent/FR2228228B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00

Abstract

Automatic treatment of well diagraphy data by (a) producing a number of diagraphy measurements of a well representative of the formations traversed by the borehole; (b) combining the measurements in order to obtain parameters (I, II) related to the resistivity of the water and porosity of the formation; (c) combining (I) and (II) to obtain an output parameter which is a function of the porosity of the formation and the ratio of the resistivity of the water to that of the formation, the parameter being, more especially, a function of log(Rw/Rt) where Rw = resistivity of the fossil water and Rt = resistivity of the formation. This enables the evaluation of the hydrocarbon content of a formation from the water saturation (Sw) and the porosity (Circle with diagonal line) which are empirically related to the measured values by the equations F = a/circle with diagonal line m and Smw = F. Rw/Rt, to be determined more accurately by establishing their relationships for the coefficient (a) of the formation factor (F). The 'cementation' factor (m) and the exponent (n) of the water saturation Sw.
FR7414798A 1973-05-01 1974-04-29 Diagraphy data treatment - for evaluating the hydrocarbon content of underground formations from the water saturation and porosity Granted FR2228228A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2061173A GB1473096A (en) 1973-05-01 1973-05-01
US05/412,908 US4245313A (en) 1973-05-01 1973-11-05 Method and apparatus for determining characteristics of subsurface earth formations

Publications (2)

Publication Number Publication Date
FR2228228A1 true FR2228228A1 (en) 1974-11-29
FR2228228B1 FR2228228B1 (en) 1976-10-15

Family

ID=26254772

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7414798A Granted FR2228228A1 (en) 1973-05-01 1974-04-29 Diagraphy data treatment - for evaluating the hydrocarbon content of underground formations from the water saturation and porosity

Country Status (1)

Country Link
FR (1) FR2228228A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405487A1 (en) * 1977-10-07 1979-05-04 Schlumberger Prospection DEVICE AND METHOD FOR DETERMINING A COMPOSITE PARAMETER OF WATER IN UNDERGROUND FORMATIONS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405487A1 (en) * 1977-10-07 1979-05-04 Schlumberger Prospection DEVICE AND METHOD FOR DETERMINING A COMPOSITE PARAMETER OF WATER IN UNDERGROUND FORMATIONS

Also Published As

Publication number Publication date
FR2228228B1 (en) 1976-10-15

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Legal Events

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