Has anyone encountered an error message stating that "STAR has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available."This is only happening when the Global Contact is set to "No Penetration" while trying...
Has anyone encountered an error message stating that "STAR has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available."
This is only happening when the Global Contact is set to "No Penetration" while...
Any recommendations of high strength (90 ksi or so) materials capable of withstanding 420,000 PPM (42 %) H2S and 8 % CO2 at 400 degrees F (bottom hole temperature) at 17,000 psi pressure (bottom hole pressure) for an oilfield downhole application? We typically use 4140 HT or 17-4 PH stainless at...
I am searching for a non magnetic stainless steel for a magnet housing to be run in an oil well. I would like a material with 80 ksi min yield strength if possible. I was considering a 300 series stainless but many do not have published yield strengths. This is a very simple design utilizing a...
I am looking to age and ion (plasma) nitride one of the three following materials to be used for a shaft in a downhole mud motor application. The possible materials are: maraging C-250, Custom 465, or 13-8 stainless. The requirements are: 200 ksi min. yield, Rc 48 max, and uniform shrinkage from...
I have a 17-4 ph stainless steel shaft utilizing a morse taper with a stub acme thread below it to join two tools used in an oilfield application. The thread is to allow the connection to be pulled in tension. The problem is the taper tends to gauld when in use due to being overtorqued. The...
