INTRODUCTION OF WELL LOGGING

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Geophysical well logging

Involve probing of the earth with instruments lowered into bore holes,with their reading being recorded at the ground surface

Type of well loggs

(logging while drilling (LWD

INTRODUCTION OF WELL LOGGING


عمل قياسات ال logging اثناء عمليه الحفر

INTRODUCTION OF WELL LOGGING


قياسات قبل التغليف "قبل عمل open hole(un cased logging) "casing

قياسات بعد التغليف"بعد عمل cased hole " casing 

INTRODUCTION OF WELL LOGGING

parameters that can be calculated or estimated from logs

porosity   permeability  pay thickness  lithology

Type of drilling mud

water-base mud

fresh water  salt water  salt saturated water

oil-base mud

petro physics

Is the study of the physical properties of reservoir rock and their mineral,fluid aiming at establishement of there properties and the impact on log response and interpretation

petrophysical 

show relation between porosity and permeability 

and

(show formation resistivity factor (porosity relation

and

(resistivity index (saturation relation


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