Different methods and technology for reducing the number of well trips have been around for some years; however, as a result of the latest market down-cycle period, these approaches have gained fresh interest, creating a new wave of development in technology-based solutions. In this article I will go into further detail about three of Odfjell Well Services' main technologies on how to reduce ...
Casing Running
Both equipment and competence were put to the ultimate test when Odfjell Well Services faced their heaviest casing string in Romania so far. Petrom – OMV subcontracted Rig Saipem 5870 was going to set 13 5/8” 14” Casing (535 Tones / 3801m) in the Baicoi field in Romania.
What question would you rather ask: –Where can I find the comments on connection #254, or –Why is there a higher torque on the connection you just made?
The crushing factor is the weight of the casing string in relation to the yield strength of the pipe. It suggests that you need more area of impact from the dies when the string gets heavier. This should be calculated by the drilling planner and it determines the type of pipe to be used.
What do you do when you run into a casing connection that is impossible to break out? Do you send a man into the red zone with a reciprocator saw while the string is in the elevator? Or are you willing to spend some time rigging up a belt tong to assist where your roughneck or casing tongs were not able to deliver the required torque? Hopefully not. We have safer and more efficient ways of ...
I care about the string. At least, I did when was in charge of it. The solid grip of the elevator around the box felt comforting. No one could ever convince me that hundreds of tons of casing jangling from the top drive, with an inside grip, were a safe option. I was saved by the bell. The new technology (well, new at that point) came along when I had moved up the ranks to my ultimate level of ...
The experienced oil worker will find this rather obvious, but it is never an option to cut corners when it's talk about protecting the casing tubular. Still, we see that routines are not followed or someone takes too many personal liberties. A quick brush-up of dos and don'ts, including a time-saving tip, will not harm anyone.
The risk of stopping casing jobs before reaching TD is greater for deep and/or deviated sections. The ability to ream casing down by using the CRTi (or CRTe)and a ream shoe overcomes challenging wellbore obstructions such as tight spots, ledges, high dog legs, cutting ‘beds’ or difficult deviated zones. There are situations where Level 1 casing reaming could save up to 50 percent of the time or ...
This is probably the most important part of a casing crew’s job; identifying the pipe and ensuring all equipment and tools are within the specs to handle and make up the connections. Why is this so important? The crew needs to understand what type of connections they are making up. Are they all the same, or are there different types in one string? This is crucial as torque figures might differ, ...
Running casing, by its very nature, can be a dangerous occupation with many pitfalls to be aware of. Contrary to popular belief, most accidents are preventable, which is why we must be aware of the hazards and take every precaution necessary by implementing the stringent safety measures while avoiding injury to personnel on the rig site.
