The next DD should not have to rebuild the well from scratch.
The next DD needs the last accepted survey, projected bit position, active plan, current BHA response, recent slides, rotary tendency, and the next thing that needs watching. Anything less means starting the new tour by rebuilding the old one.
I have watched too many handovers turn into a memory contest. One person remembers the last slide. Somebody else remembers the last survey. The office has a report. The DD has notes. The plan revision is sitting in another window. Everybody has part of the job, and nobody has the whole well.
That is not paperwork. That is the well. The bit may be ahead of the last accepted survey. The BHA may have started building, dropping, or walking differently. Lithology, dip, gamma, and drilling response may have changed. If that does not move with the handover, the next DD starts behind.
Do not tell the next DD what you did. Show them the well you are handing over.
What actually gets lost
The obvious items usually make it across: current measured depth, last accepted survey, general activity, and whether the current interval was slide drilled or rotary drilled. The dangerous losses are the relationships between them.
- Position without timing: the accepted survey is known, but nobody makes clear how far the physical work has advanced beyond it.
- Plan without revision state: the incoming directional driller sees a plan but cannot immediately tell whether it is the active, reviewed version.
- BHA behavior without the footage: somebody says the assembly is building, dropping, or walking, but the slides and rotary response behind that statement are scattered.
- Activity without consequence: the report says what happened but not what changed in the directional picture because it happened.
- Uncertainty without ownership: a question remains open, but the incoming directional driller does not know whether it is a watch item, a hold point, or something already reviewed.
When those relationships break, the crew spends the first part of the new tour reconstructing the old one while measured depth may continue to increase.
A tour summary is not enough
A shift summary is chronological: we drilled, surveyed, slide drilled, rotary drilled, circulated, and made a connection. A state transfer is operational: this is the last accepted survey, this is the projected bit position, this is the active plan and target, this is what the BHA has done, and this is what still needs attention.
The difference matters because the incoming directional driller needs a reliable starting state, not a diary.
The minimum useful handover
- Last accepted survey and projected bit position. Separate the measured survey station from what is projected or still awaiting review.
- Active plan and target context. Make the reviewed reference clear, including whether a revision changed the current objective.
- Current assembly and observed behavior. State what the BHA has actually done in this run and show the footage behind it.
- Activity and measured-depth increase since the last accepted survey. Connect footage and operating mode to the directional state instead of listing activity in isolation.
- Open questions and the next verification point. Say what still needs checking, what will answer it, and who owns it.
Keep the job in one place
A handover gets stronger when everybody is looking at the same job record. Surveys, plans, run history, field activity, and reports stay connected so the incoming directional driller can see what is accepted, what is projected, and what still needs attention.
IronSuit keeps the history, current state, and missing pieces together. The directional driller works the trajectory, the geosteering specialist interprets the geology, and the rig driller runs the rig.
The office needs the same handover
The field-to-office handover fails for the same reason the tour-change handover fails: the record splits. One number is in the morning report, another is in a spreadsheet, the survey file is somewhere else, and the explanation lives in a phone call nobody else heard.
The morning package should be the office version of the same job the field worked—not a second story rebuilt after the fact. Tour handover and morning reporting are the same problem at opposite ends of the connection.
What good continuity changes
Good continuity does not guarantee a perfect well. It does something more basic and more useful: it stops the team from repeatedly paying to relearn what the job already knew.
- The incoming directional driller can begin with the last accepted survey and current job state instead of from memory.
- Open questions stay visible instead of turning into assumptions.
- The office sees the same job record the field used.
- Performance conversations can follow the actual slides and rotary response across tours and runs.
- The final record can explain how the surveyed trajectory and operating record progressed.
The chair can change. The operational understanding should not.
That is what IronSuit is built to do: hand the next DD and the office the well as it stands now, not the well as somebody remembers it.