Line 54: |
Line 54: |
| |- | | |- |
| | Survey problems | | | Survey problems |
− | | * Getting good seat to measure pressure * Screen plugging with material in drilling mud | + | | * Getting good seat to measure pressure |
| + | * Screen plugging with material in drilling mud |
| | | |
− | | * Packer failure * Depth determination | + | | * Packer failure |
| + | * Depth determination |
| | | |
| |- | | |- |