15/21 65. There areypes of thology logs commonly ueed in formation evaluation. A

Question

15/21 65. There areypes of thology logs commonly ueed in formation evaluation. A. Two. B. Three. C. Four. D. Five. 66. Combination of Density-Neutron logs is useful to: A. Differentiate oil or water from gas zones. B. Calculate quantitative values for lithology- C. To obtain values of water saturation. 67, log deals with the velocity of sound propagation. A. Acoustic. B. SGR C. MSFL D. NPHI Among the following conventional logging techniques, select the method which is not useful for measuring porosity: 68. A. Density log. B. Neutron log C. Sonic log. D. Resistivity log 69 log helps in measuring the borehole diameter with depth A Sonic B Resistivity C. Caliper D. Density 70 Simply stated, Neutron A. Responds primarily to the hydrogen present in a formation. Measuresacoustic travel time in a formation ? Measures induced formation radiation A & C

Explanation / Answer

65. there are _______types of lithology logs commonly used in formation evaluation

ans.- three

66. combination of density neutron logs is useful to

ans. this method is used for the measurement of lithology, porosity and bulk density off the formation so the right ans is

(B) calculate quantitative values for lithology

67. _______ log deals with the velocity of sound propagation

ans- sgr method deals with gamma ray and mfsl logging methid deals with the microresistivity and nphi method deals with the neutron log then right answer for this question is

(A) acoustic method

68. among the following conventional logging techniques select the method which is not useful for measuring porosity

ans- resistivity logging is the method by which we characterize rock and sediment and then we measured its electrical resistivity. other three methods are majorly used for the measuring porosity of the formation so the right ans is

(D) resistivity logging

69. ________log helps in measuring the borehole diameter with depth

ans - caliper logging is used for the measurement of the size and shape of the borehole so right ans is

(C) Caliper

70. simply stated , neutron log

ans because hydrogen has greatest effect on neutron transport . and its main use is to determine the porosity of the formation. the right answer is

(A) responds primirily to the hydrogen present in a formation.

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