BOPfailure2 {bnRep} | R Documentation |
BOPfailure Bayesian Networks
Description
Providing a comprehensive approach to oil well blowout risk assessment.
Format
A discrete Bayesian network for risk assessment of oil well blowout (Fig. 3 of the referenced paper). Probabilities were given within the referenced paper. The vertices are:
- Kick
(F, S);
- X1
Efficient hydrocarbon formation (F, S);
- X2
Negative diffraction pressure (F, S);
- X3
Sufficient permeability (F, S);
- X4
Low hydrostatic pressure (F, S);
- X5
Low and lost Annular Pressure Loss (F, S);
- X6
Surface line failure (F, S);
- X7
Power failure (F, S);
- X8
Pump failure (F, S);
- X9
Operator failure to notice adjustment (F, S);
- X10
Pump control failure (F, S);
- X11
Leakage from the pump’s fluid side (F, S);
- X12
Blowing (F, S);
- X13
Density reduction (F, S);
- X14
Volume reduction (F, S);
- X15
Inadequate holes fill up (F, S);
- X16
Mud loss (F, S);
- X17
Gas-cut mud (F, S);
- X18
Abnormal pressurize (F, S);
- X19
Swabbing while tripping (F, S);
- X20
Mud weight reduction (F, S);
- X21
Failure in Mud treatment equipment (F, S);
- X22
Formation (F, S);
- X23
Increasing mud weight (F, S);
- X24
Annular losses (F, S);
- X25
Bad cementing (F, S);
- X26
Casing failure (F, S);
- X27
Surging-piston effect (F, S);
- X28
Failure in centrifuge (F, S);
- X29
Failure in degasser (F, S);
- X30
Mud cleaner equipment in adjustment (F, S);
- X31
Power failure (F, S);
- X32
Agitator(mixer) failure (F, S);
- X33
Settlement of mud-weight substance (F, S);
- X34
Pulling the pipe too fast (F, S);
- X35
Using Mud with high viscosity and high gel strength (F, S);
- X36
Having balled up a bit (F, S);
- X37
Having thick wall cake (F, S);
- X38
Having a small clearance between the string and the hole (F, S);
- X39
Having and plugged drill string (F, S);
- X40
Directing the pipes at the speed inside the well (F, S);
- X41
Using mud of high viscosity & and high gel strength (F, S);
- X42
Having balled up (F, S);
- X43
Having Thick wall cake (F, S);
- X44
Having a small clearance between the string and the hole (F, S);
- X45
Using the float valve /nonreturn safety valve (F, S);
Value
An object of class bn.fit
. Refer to the documentation of bnlearn
for details.
References
Satiarvand, M., Orak, N., Varshosaz, K., Hassan, E. M., & Cheraghi, M. (2023). Providing a comprehensive approach to oil well blowout risk assessment. Plos One, 18(12), e0296086.