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Keywords: Neutron log
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Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 42 (05).
Paper Number: SPWLA-2001-v42n5a2
Published: 01 September 2001
...Zhi-Qiang Mao The density and neutron logs are two important physical measurements in formation evaluation. It was found through theoretical derivation that the density log and the neutron response physically relate to each other in sedimentary formations because of the existence of the element...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 41 (01).
Paper Number: SPWLA-2000-v41n1a1
Published: 01 January 2000
...Joseph M. Chiaramonte; Darwin V. Ellis This tutorial illustrates the benefits of modeling compensated neutron logging instrument responses. Recent progress has been made with speeding up model computations using a forward model based on diffusion theory. The commercially available modeling code...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 31 (03).
Paper Number: SPWLA-1990-v31n3a1
Published: 01 May 1990
...J.G. Patchett; Ralph Wiley The response of Schlumberger's compensated neutron log (CNL)2 was investigated using Tittle's regression model to resolve variations reported in the literature and observed in the comparison of neutron porosity log data with core and other porosity log data. One objective...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 30 (03).
Paper Number: SPWLA-1989-v30n3a5
Published: 01 May 1989
...James H. Dupree Monitoring reservoir fluid movements in the Prudhoe Bay Field on the North Slope of Alaska has been accomplished by the use of cased-hole compensated neutron logs, pulsed neutron logs, and gamma ray logs. Cased-hole nuclear logging data have been collected over time (timelapse) in a...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 29 (06).
Paper Number: SPWLA-1988-v29n6a3
Published: 01 November 1988
...G.R. Coates; H.F. Dunlap Our research shows that boron in the rock man Trix occrs in quantities large enough to affect seriously log analysis in several formations along the Texas Gulf Coast. Examples of log-derived quantities affected by boron content include porosity (compensated neutron log...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 21 (06).
Paper Number: SPWLA-1980-vXXIn6a1
Published: 01 November 1980
...W.K. Mitchell This paper presents a method for calculating hydrocarbon density from logs. Empirical relations between bulk volume hydrocarbon and the volume of hydrocarbon seen by the density and neutron logs are derived. An approximate relation is developed for excavation effect on the neutron log...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 21 (02).
Paper Number: SPWLA-1980-vXXIn2a2
Published: 01 March 1980
...W.H. Lang, Jr. Sixty-seven density and neutron logs were run on shallow wells in a 360 acre area in the San Joaquin Valley of California. The heavy crude reservoir is a dirty sandstone and the shales within the unit are extremely silty. It was extremely important that the "porosity" logs were...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 18 (02).
Paper Number: SPWLA-1977-vXVIIIn2a2
Published: 01 March 1977
... techniques available to the industry on a service-charge basis. 1 3 1977 1 3 1977 1977. Society of Petrophysicists & Well Log Analysts log analysis water saturation calculation Upstream Oil & Gas detection evaluation sonic log interpretation sandstone Neutron log...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 16 (06).
Paper Number: SPWLA-1975-vXVIn6a4
Published: 01 November 1975
... Louisiana Laterolog Neutron log multiplier porosity Houston geometrical fraction transit time quantity saturation Induction log density log University resistivity fraction Texas interval transit time RAPID Sw DETERMINATION USING Rw INDEX SLIDING OVERLAY TECHNIQUE BY E. E. KING Atlantic...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 15 (06).
Paper Number: SPWLA-1974-vXVn6a1
Published: 01 November 1974
... with encouraging results in three deep wells. Accoustic log porosities estimated with the aid of the shear transit time agree with porosity estimates made using acoustic vs. Compensated Neutron log and density vs. Compensated Neutron log cross-plots. The ability to estimate lithology and porosity from...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 13 (04).
Paper Number: SPWLA-1972-vXIIIn4a1
Published: 01 July 1972
...R.B. Truman; R.P. Alger; J.G. Connell; R.L. Smith A unique two-detector Neutron tool has been developed and introduced commercially. More than 600 open-hole logs and 150 cased-hole logs have since been recorded in the United States. This new tool records a Compensated Neutron Log (CNL*) for which...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 13 (02).
Paper Number: SPWLA-1972-vXIIIn2a3
Published: 01 March 1972
...W.D.M. Smith; J.O. Guy; A.H. Youmans After extensive field testing in its experimental stage, a Sidewall Acoustic Neutron logging instrument has been placed in limited field operation. The instrument in its present configuration yields a simultaneous recording of an acoustic interval transit time...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 11 (04).
Paper Number: SPWLA-1970-vXIn4a1
Published: 01 July 1970
... decrease in neutron log porosity. For poorly compacted, shallow sands and for some abnormal-pressure sands, gas saturations near the wellbore cause an increase in sonic log porosity. Shaliness is an additional factor important to the log interpretation of gas sands because sonic and neutron porosities...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 10 (06).
Paper Number: SPWLA-1969-vXn6a2
Published: 01 November 1969
... Commission to the U. S. Geological Survey for a feasibility study on well logging. The nuclear and physical characteristics of this source and some of the health physics aspects of its use in the field are discussed. The source was used to make epithermal neutron logs, which are compared with logs made with...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 9 (06).
Paper Number: SPWLA-1968-vIXn6a1
Published: 01 November 1968
... Neutron log resistivity equation clean water sand hydrocarbon pay sand correction gas sand LOG EVALUATION O F LOW-RESISTIVITY PAY SANDS IN THE GULF COAST BY M. P. TIXIER, R. L. MORRIS, and J. G. CONNELL Schlumberger Well Services EDITOR S NOTE: This paper was presented a t the Ninth Annual SPWLA...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 9 (02).
Paper Number: SPWLA-1968-vIXn2a4
Published: 01 March 1968
... use. The gamma-gamma log has been developed primarily for evaluation of cement behind pipe and in minerals prospecting; it is used to a lesser extent for formation density determination. Pulsed neutron logs are in widespread use and are run in both open and cased holes. Log interpretation work...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 6 (05).
Paper Number: SPWLA-1966-vVIn5a5
Published: 01 September 1966
... neutron devices for the determination of porosity and lithology. 1 9 1966 1 9 1966 1966. Society of Petrophysicists & Well Log Analysts well logging gypsum core analysis Upstream Oil & Gas neutron log analysis gamma ray neutron porosity determination fracture matrix...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 4 (04).
Paper Number: SPWLA-1964-vIVn4a2
Published: 01 July 1964
...-President Upstream Oil & Gas resistivity cell recommendation executive secretary well logging committee member responsibility board of directors formation tester sonic log Chairman valve local chapter Neutron log resistivity hydrostatic pressure LOCATING SHALLOW GAS-BEARING SANDS...

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