FS Testing (general)2 Flashcards
Which module would you input slurry designs into
placement
Choose three principal reasons for prim cement job
1 Provides casing support and protection
2 Zonal isolation
3 Support axial load of casing strings and strings to run later
From the list below choose the five main types of casing string
Conductor, Surface, Intermediate, Production, Liner.
After bumping the top plug on a 9 5/8 primary casing job when you bleed off pressure returns
Floating equipment failed, pump back until plug bumps, bleed off rapidly, and observe returns again. Repeat twice, if returns still do not stop, hold minimum pressure until cement sets.
What is the top out cement job operation
Cement job performed till cement to surface.
Purpose of conductor casing
Prevent washing out under the rig
Purpose of surface casing
Protect surface fresh water formation
Intermediate casing is run to
Isolate hole into workable sections
Production casing will
Isolates the pay zone from other formations and the fluids in them.
What does CemCAT mean
Cementing Computer Aided Treatment
Drilling mud used for
Provide primary well control
Cool down the bit
Support borehole
What are key parameters you should know about any working string (Casing, Drill pipe & HV
OD
Weight
Grade
Length
Select the reason for using the bottom plug in primary cementing
Separates cement from cw/spacer/mud to avoid contamination
It wipes the drilling fluid layer from the inside of a casing
Select the reason for using the bottom plug in primary cementing
Separates cement from cw/spacer/mud to avoid contamination
It wipes the drilling fluid layer from the inside of a casing
Give 2 reasons for using Top plug in primary cementing…
1 Positive indication of end of displacement.
2 Separates cement from displacement fluid to avoid contamination.
How do you differentiate a bottom plug from top plug
Bottom plug is hollow inside, not solid
What are the 2 main families of raw materials used to manufacture cement
Calcareous - 2 parts, Argillaceous – 1 part or limestone and clay
What mineral is added to the clinker during the final grinding phase of the cement manufacturing
gypsum
Why is gypsum added
prevent cement from flash setting
What is HSR cement
High sulfate resistant
