Search results for query: *

Thank you Compositepro. Just to clarify, I´m just talking about recip compressors, which are not suitable for liquids at all. That´s the reason of my question, I´d like to confirm that provided the operating conditions are not in the liquid region it wouldn´t affect as such while being in the...

Hi everyone, Quick question, I work in gas compression services, mainly gas lift with pretty high discharge pressures (up to 3500 psig, three-stage reciprocating compressors), I came across with a analysis of a gas composition we sent for survey a few years ago and noticed it reaches...

Thank you ax1e. I found some interesting books on the subject and realiced there are several specific issues to take into account while sizing flare diameter.

Hi, Can gas flow equations formulas like Weymouth, Pandhandle, AGA, General flow, be used to calculate the flow capacity of a vertical flare just by having P1 and assuming P2 being atmospheric pressure? I mean, it looks to me I can, since at the end it is gas flow through a pipe, but am I...

Thank you rotw and PaoloPemi. I'll keep looking up then.

Hi, I'm trying to calculate decent approaches to saturation pressure of hydrocarbon mixtures (methane to hexane). In an attempt to avoid going through EOS I came across with Antoine equation, which seems to deliver pretty accurate results with pure gases. I wanted to give it a try using...

Thanks for the advise ax1e. Thank you EdStainless, for sure that clarifies a lot on why to go up on size/schedule on a compressor package even under same base pressure and flow conditions than an offskid pipe.

Thank you ax1e. Yeah, I´ve heard/read that a lot, Weymounth not being that appropriate, but for some reason it's the one that best accommodates to the real conditions I´ve been involved with, which are precisely the ones it shouldn´t accomodate, piping ranging from 2 to 12" ID, pressures from...

Thanks for your comments guys. I started as a general question, but you are right, in the case I had on mind the following are the specifics: Flow: 6 MMSCFD Temp. 95 deg F Sweet gas, no tolerance for H2S required Suction: 10" sch 40, 30 psig Firs stage discharge: 6" sch 40, 144 psig, 277 deg F...

Thank you LittleInch. On the piping connecting the compressor, for example suction, which wouldn’t be subjected to as many forces as it would be in the compression skid, what percentage under the piping max allowable stress would you allow to normally operate?

I meant to say why do the packager set schedule 80 where it could easily be schedule 40 according to normal operating conditions and max expected (300 psig max). That doubt is keeping me from suggesting schedule 40 for applications of way more pressure, 900 psig for example.

Hi, I´m working on a spread sheet to calculate required gas pipe diameter for given P1, P2 and flow (I´m ussing Weymouth, for some reason is the one has given more accurate results according to my fiel of job which is gas compression). I´m putting also the recommendation for pipe schedule, and...

Thank you LittleInch.

Guys last question on this, just to confirm so what happened in the company I work for, installing two pressure regulators to reduce pressure from 70 kg/cm2 to 7 kg/cm2 was just a waste of money, since the temperature drop will be exactly the same as done with just one valve (with proper Cv)...

Great, thank you MortenA and LittleInch. Crystal clear.

Hi, In gas compression (with reciprocant compressors & combustion engines) sometimes we have no option but taking fuel gas from the discharge line. Given the most common escenario we usually encounter there is a gas feed at 70 kg/cm2, whereas our fuel stream pressure needs to be around 7...

Thanks georgeverghese, Your second reply seems to contradict your first one, or maybe I´m not getting you. In the information I showed it was reported by client monitoring it states the well´s gas production of 0.5 MMSCFD is enough to reach, over time, a gas lift flow (self-fed) of 1.5 MMSCFD...

I found a report from our client monitoring the closed-loop gas lift system, reading the following: Formation gas: 0.5 MMSCFD "Injected" gas (gas lift flow): 1.5 MMSCFD Measured gas at separator: 2.0 MMSCFD This is a closed system and no external source of gas is available, so above...

For an oil well which produced gas be used as gas lift for itself, is it possible to reach, for example 1 MMSCFD if the well only produces 1.0 MMSCFD? assuming the gas is being recycled in a compressor of 2.0 MMSCFD capacity For example, if we separate the well´s production (x number of BPD and...

Thank you guys, I was traveling so I couldn´t reply ealier. All the compressor parts are new, including valves. I´m requesting the temperatures data takem from different points. They had some problems with the valves at the beginning, they cleaned them up and the flow improved to the values I...