AFE Flashcards
Defenition of AFE
Authorization for Expenditure(AFE) is the summed up statement of expenditure to be incurred in drilling well
AFE contains
1) Well name
2) Well number
3) AFE number
4) Rig name
5) Estimated number of days to drill and complete the well
6) Well Objective
7) Estimated cost
8) Contingency fund provided
9) Special remarks
Advantages and Disadvantages Annular Preventer:
Adv: the ability to seal on variety of pipe sizes
Disadv: takes time
- cannot withdraw high pressure
What is annular preventer
a large valve used to control wellbore fluids sealing element resembels a large rubber goughnut that is mechanically inward to seal on either pipe or the open hole
Well palnning
1) Rig up
2) Materials (bit, chem)
3) Start drill up
1) Pre spud meeting
2) Run and cmt casing
3) Nipple up BOP
4) Do LOT, FIT
5) Drill next hole section
6) Logging
Directional Drilling 3 considerations:
1) Build up rate
2) min torque and drag
3) collisions
What is casing point
prioty is the support the weekened equipment and landing loads of next casing and tubing string
Role of Rig Manager
- safety of the rig personnel and equipment
- safe store equipment
Role of Engineer
Desing the well
Writes the drilling program
Improves performance
Role of Drilling Superintendent
accountable for planning and executing drilling program
supervising the drill supervisor
Role of Drilling Manager
link b/w the drilling department and OPCO
Role of Drilling Supervisor
responsible for implementing the drilling program
Role of Driller
leads the crew
Name 2 consideration when preparing the cmt program
1) CMT type
2) Capacity
