Morning everyone,
I've got a question about using certain chemicals for high pressure leak testing of umbilical tubes. We have been asked to use both HAN and EGMBE (as well as a 50/50 combination of the 2) for a pressure test. After reviewing the MSDS for the chemicals, they both state that...
Good Morning,
I was wondering if anybody has any experience leaving a steel body pig/pig train in a flowline during hydrotest/leak test?
The pig itself is designed with no enclosed cavities so the pressure should not affect the integrity of the pig itself. But I haven't been able to find any...
Good morning,
I've got a question related to the test flange requirements in API6A. We have piping segments that will be installed offshore and will have 10K API 6BX flanges on either end. In order to test the segments prior to going offshore we are looking to have test ports tapped but I am...
Good Morning,
I am trying to find information on the use of water soluble bags of biocide being inserted into a flowline during manufacture that will protect the flowline following installation and flooding operations.
I have treated flowlines before but only by injecting it from the topsides...
Does anybody have experience using a SmartPlug (or similar competitor version)?
Background info:
1) Pipeline is 20in subsea gas export line
2) Operating Pressure = 3000psi
3) Cleaning and gauging runs will be completed before using SmartPlug to make sure pipeline is clean, hydrocarbon free...
Morning everyone,
Does anybody have a quick calculation for sizing rupture disks? I’ve looked at API RP 250 and spoke with our flow assurance group but I’m not looking to produce a full flow assurance model. I’m just looking for something that will get me in the ball park for sizing for a fluid...
Good Morning,
Does anybody have experience installing an infield umbilical that is shorter than the water depth? We are reviewing the layout on my current project and have come up with an idea that would require about 1/3 of the original umbilical length, but brings up the problem of installing...
Good morning everyone,
Sorry for the re-post, but it was suggested that I might have better luck posting in this forum rather than the Control Systems forum.
I have been assigned to a companywide project that will eventually become an in-house training program. I'm still new to the industry...
Good morning everyone,
I have been assigned to a companywide project that will eventually become an in-house training program. I’m still new to the industry and my background is not in subsea controls, so when I was assigned to the Subsea Controls module I was excited for the challenge and the...
Hello everyone,
Hopefully this is the best place to post this question. I didn’t find any other forums dedicated to ROV tooling and receptacles but I thought this would be the best place to start, seeing as many subsea valves have ROV torque buckets as back-up to the actuator.
I am currently...
Hello everybody,
Hopefully I have put this in the appropriate forum. I’m looking for information about subsea hot-stab connectors for a chemical injection line. I’ve worked with collet and clamp connection systems but don’t have a lot of experience with hot-stab systems. I’ve been asked to...
Hello everyone,
I am currently looking for air winch hire in the UK for a project I am working on and was hoping to get some opinions / input on the companies I have found so far. This is the first time I have dealt with any suppliers in this area and I would really appreciate any feedback you...
Hi Everybody
I'm working with a senior engineer on a PLET design using Structural Analysis Computer System software. Does anybody know of a good SACS reference material? I have the users manual, but I was hoping to find something that had example problems or better explanations. I wanted to...
Hello Everybody,
Sorry if this is a re-post, I did a search but what I found was mainly about how to find jobs overseas. The job part I already have worked out, it’s the actual moving overseas that I am trying to figure out now. I will be leaving in about 6 weeks to work in my companies...
Hello everybody,
I am currently working on a piping stress analysis for a subsea in-line sled and am having a difficult time figuring out how to model the vertical connector hubs. I just started learning AutoPIPE about 2 weeks ago, and have been working on it in between other project work, so...
I am looking for a good reference book for shallow foundation design, but I want to make sure it has applicable information for subsea foundations. Any recommendations?
Cheers,
Kat
I am currently working on my first mud mat design for a subsea manifold. I've been following API RP 2A-LRFD to determine bearing capacity and sliding stability. I ran into a problem when trying to determine the depth correction factor, dc. The equation has tan(phi) in the denominator, but for an...
I am currently working on a barred tee design for a manifold piping system. The tee was originally designed with only one bar, and a concern was brought up that it should have a minimum of 2. I looked through ASME B16.9, but it didn't mention the required number of bars. Is there a standard as...
I'm getting ready to move more into the structural design side of the business (PLET,PLEM, and Manifold Design). My education centered mainly around fixed and floating offshore structures so I am pretty familiar with relevant API codes for platforms, but are there specific codes for subsea...
Hi everybody,
I'm a young engineer (<2 years after grad with 1 internship during school), I graduated with a BS in a maritime structures/coastal engineering degree. I am working towards me EIT certificate and will start working towards a masters in structures (after I get done with my EIT...
