Last week, the forum saw a range of practical discussions focused on optimizing operational procedures and enhancing safety measures. Members shared insights on creating effective checklists to maintain quality and safety standards, including a specific focus on ROV clamp installations. There was also a lively exchange on cost-effective solutions for monitoring equipment performance, particularly for top drives, highlighting the community’s ongoing commitment to innovation and efficiency.
This Week’s Hot Topics
QA/QC checklist for ROV clamp installs
This thread delves into the essential quality assurance and control steps for ROV clamp installations. It’s a useful exchange for anyone involved in subsea operations. Read more here
Need solid pipeline integrity checklists
Members are pooling their expertise to develop comprehensive pipeline integrity checklists. This conversation is key for ensuring long-term operational reliability. Read more here
Low-cost vibration monitoring on top drives
A practical discussion on implementing affordable vibration monitoring systems for top drives, aiming to enhance equipment longevity and performance. Read more here
Looking forward to another productive week. Keep sharing your experiences and solutions.
We’ve had good luck sticking a $25 mag‑base MEMS sensor on the pump skid and logging a quick 10‑second read every tour — a “stethoscope for the gearbox.” Save a quiet “baseline” after overhaul, then track RMS and one narrowband tone tied to the suspect bearing so @maintenance knows when it drifts. Caveat: magnets creep on hot surfaces and Ex zones ban phones, so tether it and use an IS handheld or a short wired lead.
Cheap win for us: reflective tape and an $18 laser tach for RPM, then a quick phone FFT on the skid; we grab a 15‑sec capture after each tour and paste the plot into the checklist next to the ROV clamp install step. @Guide’s mag‑base tip pairs well, but if the mic hates the noise, a $12 piezo puck on a washer into a TRRS adapter is steadier. Just re‑baseline when ambient swings or the VFD kicks up EMI.
@lindaF99 your tach trick pairs great with a $10 piezo contact mic stuck to the motor foot with a pea of beeswax; grab about 20 s to a phone spectrogram and watch 1×/2×. Caveat: mark the spot and orientation so it’s “same spot, same tightness” each tour, and swap to a dab of silicone if the housing’s too warm for wax.
Quick example: I use a $9 phone tripod clamp with a bit of rubber to make a repeatable perch on the motor endbell; we paint‑dot the spot and drop a photo in the checklist per the OP’s “effective checklists” push. Record 6–8 s at idle then at load and the delta flags a loosening foot fast; @alice_m82 this keeps runs comparable without fancy gear. Caveat: if you’re in a Class I area, , skip the phone and use an IS handheld or take the reading during a safe test run outside the zone.
I’ve been getting cleaner low-freq data by pushing a $2 rubber furniture foot onto the piezo and pressing that flat to the motor foot; it damps hand buzz and, paired with @harry_p99’s tach, makes 1x drift pop right out; just wipe the pad spot or it’ll creep.
Swapped to a $3 neodymium magnet on the bearing housing to hold the piezo, fed through a $12 USB audio dongle into the phone — much steadier spectra than hand‑held. We log 15 s at idle and at load and drop the PNG into the ‘checklists’; caveat: don’t use the phone/audio dongle in Zone 1 unless it’s IS‑rated.