top of page

SUCCESS STORY #1
OPEN HOLE LOGGING UNDER MPD CONDITION ON SEMI-SUBMERSIBLE RIG

Challenge

  • Enable safe rig up and allow for accurate depth control during heave compensation

  • Maintain borehole pressure through mud system

  • Control risk of total loss / sudden kick during logging operations

Solution

  • Integrated SMART SUB and grease injection system were used to overcome the RISKS in PMCD conditions

  • Provided simultaneous entry points for wireline tool string and drilling mud

Results

  • Nine successful logging runs conducted under active pressure control

'Wireline Data Acquisition under Managed Pressure and
Pressurized Mud Cap Drilling Condition – Pushing the Boundaries of Data Acquisition Envelope for Formation Evaluation'

We recently submitted a conference paper on the MPD condition which was presented at the Offshore Technology Conference in Asia.

Now available online.

MPD
2

SUCCESS STORY #2
PIPE RECOVERY OPERATION ON SEMI-SUBMERSIBLE RIG USING SMART SUB

Challenge

  • Enable wireline rig up maintaining heave compensation

  • Free stuck BHA by a safe pipe recovery operation

  • Always maintain full well-control

  • Back-off as close as possible to the stuck point

  • Verify free pipe

Solution

  • The SMART SUB was used to allow wireline entry from the side

  • Pad Eye Sub was used to connect the top sheave as part of the BHA and allow for accurate depth measurement during heave compensation

Results

  • Successful and safe pipe recovery at the stuck point, while maintaining full well-control and accurate depth measurement

  • Eliminated the need for complex rig up of coil tubing lifting frame

3

SUCCESS STORY #3
PIPE RECOVERY OPERATION USING SMART SUB

Challenge

  • Retrieve radioactive sources in horizontal section

  • Free stuck BHA by a safe pipe recovery operation

  • Always maintain full well-control

  • Back-off as close as possible to the stuck point

  • Verify free pipe

Solution

  • Enabled wireline entry while driller had full control on

  • Pumped wireline tool down the horizontal section for radioactive source fishing to release the stuck BHA through the top drive system

  • Pulled / rotated / pumped using the SMART SUB – to enable a safe and simplified pipe recovery operation

Results

  • Successful back-off operation

  • Safe retrieval of radioactive sources

  • Achieved two joints above the stuck point resulting in a freed BHA on the first attempt

bottom of page