How I can do deconvolution in a pressure transient analysis?

More Ahmed El-Maraghi's questions See All

No title

29 May 2020 1,685 3 View

Problems with creating sweep method ?

Hi, I have this problem with my ANSYS Mesh , when i try to create sweep on the side surfaces like what you see at the images, after clicking on generate , ANSYS get this errors : 1-Mesher failed...

01 February 2020 3,523 3 View

Jet impingement cooling case - "Divergence detected in AMG solver: temperature" how to deal with this error ?

I've these errors and I tried so long to fix it but I couldn't .. I don't know what's the problem can anyone help me plzzz :- # Divergence detected in AMG solver: temperature -> Increasing...

31 December 2019 6,998 5 View

What are the field and Lab techniques applied to characterize the depositional environment?

Field and Lab techniques

09 October 2019 5,215 1 View

What are the field and Lab techniques applied to characterize the depositional environment?

I want to clarify the implication of sedimentary environment on the physical properties of the enclosed sediments, so it is very important to characterize and delineate the depositional...

09 October 2019 2,418 5 View

How to coat graphene nanoplatelets with nanometals?

what is the desirable technique?

08 September 2019 9,212 4 View

Is it possible to only solidify the intersection point of 2 lasers?

So I have this idea for a 3D printer on my mind that has been bothering me for a while now. I've done a lot of research and it seems possible but I want to get some expert advice. I'm building...

05 June 2019 8,378 7 View

Is it possible to publish an article with nearly similar title of a previously published one?

Is it possible to publish an article with a similar title of other article for the author but with totally different content ?

04 May 2019 3,556 5 View

What is the role of the "minimum reference" in the convergence criteria in Ansys?

What is the role of the "minimum reference" in the convergence criteria in Ansys for nonlinear finite element analysis of structures? "minimum reference" is not available in other software FEA...

04 May 2019 4,143 1 View

How to control the difference powers between arms in grid connected Modular multilevel converter based PV system during unbalanced generation ?

In grid-connected MMC with PV integration. The difference power should be regulated to give a reference value to the circulating currents. However, it seems to be very sensitive in unbalanced...

01 February 2019 9,028 4 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

Francisco Martins

Good day !,do not dominate this technique, but there is a thesis submitted to the Department of Geophysics Institute of Astronomy, Geophysics and Atmospheric Sciences, University of Sao Paulo Brazil in seguinter link

http://www.iag.usp.br/pos/sites/default/files/d_allan_s_spadini_corrigida.pdf

Ahmed El-Maraghi

Francisco,

Thank you for your post and help. Unfortunately the thesis is not English, I can read only English and French.

Also, It looks that the thesis illustrate the deconvolution in calcatution used for seismic processing while my inquiry was for deconvolution used in Pressure Transient analysis (Well Testing).

Thank you again

Kind Regards,

Ahmad

Shah Kabir

You can download an electronic book called DDA (Dynamic Data Analysis) from the Kappa Engineering website (kappaeng.com) upon registering.

Shah Kabir, Thank you for your participation. I read DDA book, but unfortunately it is presenting the Deconvolution from application point of view while I am seeking for detailed calculation mechanisms like excel sheet or programming codes.

Thanks and kind regards,

Well, in that case I can refer you to many published articles, such as Levitan and co-workers (SPE-84290-PA, 2005, SPE-90680-PA, SPE-102484-PA, 2007, SPE-134261-PA, 2012), von Schroeter and Gringarten (SPE-110465-PA), and Onur et al. (SPE-102575-PA, 2008).

Rosalind Archer

Shah's suggestion above is excellent and captures all the key authors whose work I would also suggest you read.

Shah Kabir and

Rosalind

Thank you so much for your advices and recommendations. I have a question about the optimization routine used to minimize the error function that was driven by Levitan and Schroeter. what was this routine?

Also, the curvature array D, how to calculate it?

I still have some questions, but my main problem that I need at least one of these routines (Schroeter, Levitan, Onur, Gringarten, Ilk, ... etc) working properly to continue my research. All these routines are operating in real domain except Ilk and Stewart routines, they work in Laplace domain with different deconvolution concept. My research is to extend real domain routines to be valid in Laplace domain with some modifications for the error functions. I have some preliminary results but I still need to verify versus one of this industrial known routines, and I failed to calculate it by myself using either Excel or C language.

I hope that I can find help from you :-)

Hello,

Thanks for all.

I successfully implemented the most basic Deconvolution algorithm, and now I am upgrading it to other features.

Abdelrahman Hamed

Dear eng. Ahmad,

My masters thesis topic is deconvolution in PTA. the specific research point is not yet determined. Would you please help me out and send me this algorithm, the one you implemented, in order to understand how exactly it works? I've read the papers of Schroeter and Levitan but I still cannot understand how their algorithms are implemented.

Your cooperation is highly appreciated.