Describe hydrocarbon oil shows.((المهندس/العـــــــــزي البريهي))

                                     
                 

oil shows

                         How to describe hydrocarbon oil shows

1-   Oil stain:

   Look for oil staining on the washed cuttings in the sample tray

      put the Tray under microscope and describe:                       

a –Distribution:-                                       B- COLOR

·          speckld                  spkld                                                 light brown                        lt brn    

·         Spotty                    spty                                                    medium brown                  med brn

·         Streaky                  strk                                                    brown                                   brn

·         patchy                   pch                                                    dark brown                           dk brn

·         even                      evn

2-   Odor :-  

·         Fair                             fr

·         Medium                     med

·         Good                          gd

·         strong                       strng

3-   Direct fluorescence((oil shows)): -   put the sample tray inside fluoroscope and describe

a-    Distribution                  B- intensity               c- color

·         Pinpoint                                    pale                pl                        light blue 

·         Speckled                                   dull                 dull                     white yellow

·         Spotty                                       medium           med                      yellow                 

·         Streaky                                     bright               brt                        dark yellow

·         Patchy                                                                                              golden

·         Even                                                                                                  brown

4-  Cut  fluorescence((oil shows))  :-  Under fluoroscope take some cuttings in porcelains then add        solvent to the cuttings and describe:

a-    Speed                       B -type

·         Slow                                   streaming              ( strmg)                    poor porosity

·         Medium                            blooming                 blomg                  good porosity

·         Fast

·         instant

C – Intensity                             D - color

·         Pale                                                    ligth blue 

·         Dull                                                   white yellow

·         Bright                                                 orange                                                                         

·         Medium                                             yellow                                                                            green

5-   Natural  cut  :-    Put some dried stained cutting in test tube, add 2cm of  solvent                                And shake it well then leave it for( 5-10 minutes ) in normal light describe the color and comparing with reference color:

color of product is

·          Very light yellow               Low oil concentration

·          Light yellow

·          Medium tea

·          Dark tea

·          Coffee                                 High oil concentration

6-    Residual Ring ((oil shows)): - Take the porcelain out of the fluorescence and in normal light Describe:

a--Thickness of residual oil ring                    

·          Very thin                         Low saturation      

·          Thin

·          Medium thick

·         Thick

·          Very thick                     High saturation

B- Color of residual oil ring

·          Light yellow                             Light oil            

·          Light brown

·          Medium brown

·          Dark brown                              Heavy oil

IF THERE IS NO RESIDUL RING  SAY ((  NO  RESIDUAL RING))

7-  Oil shows quality:

·         Trace

·         good

·         Poor

·         Fair