• Sunday, May 10, 2015

    INTRODUCTION OF WELL LOGGING

    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