Change of MMP dependent on temperature

Svetlana Nikolayevna Rudyk; Erik Gydesen Søgaard; Eugene Akwansa

Change of MMP dependent on temperature

Svetlana Nikolayevna Rudyk, Erik Gydesen Søgaard, Eugene Akwansa

Research output: Contribution to book/anthology/report/conference proceeding › Conference abstract in proceeding › Research

Abstract

The experiment was conducted with the purpose to investigate how Minimum Miscibility Pressure (MMP) changes at different temperatures. MMP was measured in a high pressure unit. An original oil saturated chalk core plug from the Danish oil field in North Sea was under investigation. The plug was divided into three samples. The pure carbon dioxide was injected into a chamber with the sample under pressure gradually increasing from 60 bars to 420 bars. CO₂ was injected in a first sample at temperature 50^oC , second at 60^oC and third at 70^oC. The amount of oil extracted was plotted against pressure. The oil recovery/pressure correlation obtained showed that:

- oil recovery grows rather in steps,

- MMP (the point B on the curve), above which the oil recovery increases insignificantly, is equal for all the temperatures,

- but the starting points (A on the graph) from which oil recovery starts growing substantially depend on temperature,

- at temperature 50^oC the distance between A and B is longer,

- at temperature 70^oC the A-B part of curve is smooth and scarcely seen.

The observations made are important for determination of MMP. If point A is taken as MMP instead of point B, it is a big underestimation of MMP values which can lead to the loss of efficiency of oil extraction.

Original language	English
Title of host publication	Proceedings of ESAT 2008, Cannes, France
Number of pages	1
Publisher	INPL Atelier de reprographie
Publication date	2008
ISBN (Print)	2-905267-59-3
Publication status	Published - 2008
Event	23^rd European Symposium on Applied Thermodynamics (ESAT2008) - , France Duration: 31 May 2008 → 1 Jun 2008

Conference

Conference	23^rd European Symposium on Applied Thermodynamics (ESAT2008)
Country/Territory	France
Period	31/05/2008 → 01/06/2008

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Cite this

@inbook{d9bbd090c4ed11dc8dd8000ea68e967b,

title = "Change of MMP dependent on temperature",

abstract = " The experiment was conducted with the purpose to investigate how Minimum Miscibility Pressure (MMP) changes at different temperatures. MMP was measured in a high pressure unit. An original oil saturated chalk core plug from the Danish oil field in North Sea was under investigation. The plug was divided into three samples. The pure carbon dioxide was injected into a chamber with the sample under pressure gradually increasing from 60 bars to 420 bars. CO2 was injected in a first sample at temperature 50oC , second at 60oC and third at 70oC. The amount of oil extracted was plotted against pressure. The oil recovery/pressure correlation obtained showed that:- oil recovery grows rather in steps,- MMP (the point B on the curve), above which the oil recovery increases insignificantly, is equal for all the temperatures, - but the starting points (A on the graph) from which oil recovery starts growing substantially depend on temperature,- at temperature 50oC the distance between A and B is longer,- at temperature 70oC the A-B part of curve is smooth and scarcely seen. The observations made are important for determination of MMP. If point A is taken as MMP instead of point B, it is a big underestimation of MMP values which can lead to the loss of efficiency of oil extraction.",

author = "Rudyk, {Svetlana Nikolayevna} and S{\o}gaard, {Erik Gydesen} and Eugene Akwansa",

year = "2008",

language = "English",

isbn = "2-905267-59-3",

booktitle = "Proceedings of ESAT 2008, Cannes, France",

publisher = "INPL Atelier de reprographie",

note = "23<sup>rd</sup> European Symposium on Applied Thermodynamics (ESAT2008) ; Conference date: 31-05-2008 Through 01-06-2008",

}

TY - ABST

T1 - Change of MMP dependent on temperature

AU - Rudyk, Svetlana Nikolayevna

AU - Søgaard, Erik Gydesen

AU - Akwansa, Eugene

PY - 2008

Y1 - 2008

N2 - The experiment was conducted with the purpose to investigate how Minimum Miscibility Pressure (MMP) changes at different temperatures. MMP was measured in a high pressure unit. An original oil saturated chalk core plug from the Danish oil field in North Sea was under investigation. The plug was divided into three samples. The pure carbon dioxide was injected into a chamber with the sample under pressure gradually increasing from 60 bars to 420 bars. CO2 was injected in a first sample at temperature 50oC , second at 60oC and third at 70oC. The amount of oil extracted was plotted against pressure. The oil recovery/pressure correlation obtained showed that:- oil recovery grows rather in steps,- MMP (the point B on the curve), above which the oil recovery increases insignificantly, is equal for all the temperatures, - but the starting points (A on the graph) from which oil recovery starts growing substantially depend on temperature,- at temperature 50oC the distance between A and B is longer,- at temperature 70oC the A-B part of curve is smooth and scarcely seen. The observations made are important for determination of MMP. If point A is taken as MMP instead of point B, it is a big underestimation of MMP values which can lead to the loss of efficiency of oil extraction.

AB - The experiment was conducted with the purpose to investigate how Minimum Miscibility Pressure (MMP) changes at different temperatures. MMP was measured in a high pressure unit. An original oil saturated chalk core plug from the Danish oil field in North Sea was under investigation. The plug was divided into three samples. The pure carbon dioxide was injected into a chamber with the sample under pressure gradually increasing from 60 bars to 420 bars. CO2 was injected in a first sample at temperature 50oC , second at 60oC and third at 70oC. The amount of oil extracted was plotted against pressure. The oil recovery/pressure correlation obtained showed that:- oil recovery grows rather in steps,- MMP (the point B on the curve), above which the oil recovery increases insignificantly, is equal for all the temperatures, - but the starting points (A on the graph) from which oil recovery starts growing substantially depend on temperature,- at temperature 50oC the distance between A and B is longer,- at temperature 70oC the A-B part of curve is smooth and scarcely seen. The observations made are important for determination of MMP. If point A is taken as MMP instead of point B, it is a big underestimation of MMP values which can lead to the loss of efficiency of oil extraction.

M3 - Conference abstract in proceeding

SN - 2-905267-59-3

BT - Proceedings of ESAT 2008, Cannes, France

PB - INPL Atelier de reprographie

T2 - 23<sup>rd</sup> European Symposium on Applied Thermodynamics (ESAT2008)

Y2 - 31 May 2008 through 1 June 2008

ER -