Temoor Muther | MUET Campus Khairpur mirs Pakistan (original) (raw)
Papers by Temoor Muther
Arabian Journal of Geosciences
Microporous and Mesoporous Materials
Artificial Intelligence Review
Microporous and Mesoporous Materials
Arabian Journal of Geosciences
SN Applied Sciences, 2020
Journal of Porous Media, 2020
Modeling Earth Systems and Environment, 2020
Waterflooding operation is one of the conventional and well-tested methods to improve oil recover... more Waterflooding operation is one of the conventional and well-tested methods to improve oil recovery. However, in an oilwet reservoir system, high water mobility is a primary concern resulting in lower oil production. This study, hence, aims to investigate the impact of injection water salinity changes on oil production and water mobility. With this, the variation of wettability and production of salt due to changing injection water salinity is also a part of this study. This study initiates with generating a three-dimensional, two-phase oil and water model. The reservoir is initially in the oil-wet stage. During the simulation, the relative permeability curves are adjusted to mimic the wettability alteration from oil-wet to water-wet. Initially, the impact of salinity on the oil recovery, water mobility, and salt production is studied through the sensitivity analysis between the low-saline and high-saline water injection. Later, a comparison of two injection strategies, including direct line and five-spot, is conducted to determine an effective injection technique for the comprehensive analysis of salinity changes on a waterflooding project. At last, the sensitivity analysis of different water salinity ranges of 0-35,000 ppm has been performed to compare the water salinity effects on water mobility, oil production, and salt production. It has been found through simulation that the oil recovery is improved significantly as the salinity of injected brine decreases below 5000 ppm. The oil recovery factor obtained while decreasing the salinity is as high as 72%. Moreover, the water cut is highly delayed as the salinity of water decreases. Furthermore, salt production is significantly lowered at the production well. Hence, reducing the salinity of injection water proved to be an effective strategy to recover more oil from an oil-wet reservoir.
Malaysian Journal of Fundamental and Applied Sciences, 2020
Tight gas reservoirs are unconventional reservoir assets which have been the focus of major resea... more Tight gas reservoirs are unconventional reservoir assets which have been the focus of major research in the petroleum industry owing to the global decline in conventional reservoirs. They are widely unlocked by creating hydraulic fractures in the formation to increase the flow capacity and productivity. The objective of this paper is to analyze different fracture geometries and their effect on tight gas production. The reservoir simulation model of the tight gas reservoir has been built with single porosity approach. A single vertical well with a single stage fracture has been used in the model to predict the behavior of fracture geometry. The major parameters of fracture geometry studied are fracture half-length, fracture width, and fracture height. Four sensitivities are run over different fracture geometry that is constant height and constant width, constant height and changing width, changing height and constant width, and changing height and changing width, while increasing the...
Journal of Petroleum Exploration and Production Technology
Gas adsorption onto the shale system carries significant importance in accurately forecasting gas... more Gas adsorption onto the shale system carries significant importance in accurately forecasting gas production and estimating underground reserves. For the Marcellus shale system, the adsorption of gas also plays a critical role in ultimate recovery and overall reserves quantification. Yet, the effect of different adsorption characteristics in different Marcellus shale regions is not systematically analyzed together. In this study, the contribution of different gas adsorption phenomena in Marcellus shale for different fractured well configurations is investigated. The objective is to understand the reservoir production responses under various adsorption characteristics and well design. For this analysis, a mechanistic Marcellus shale model under confining stresses is numerically simulated with the available literature data. After that, six samples containing adsorption characteristics of different Marcellus shale regions are taken from the literature and specified in the model for acc...
Exploitation of unconventional resources is changing the global energy landscape day by day. The ... more Exploitation of unconventional resources is changing the global energy landscape day by day. The depletion of conventional resources and high oil and gas demands have shifted the attention towards such resources. Their development is also very challenging. However, advancement in technologies such as hydraulic fracturing and horizontal drilling boost up the exploitation tendency of these invincible assets. This paper deals with the determination of technically feasible development strategies in unconventional tight gas sand reservoir. Tight reservoirs have been characterized by low porosity and low permeability. Hence, a single-porosity simulation model of tight gas sand reservoir has been developed which describes the behaviour of gas flow in small pores of the reservoir. Various development strategies can be employed for tight gas reservoirs. The selection of best strategy involves the technical and economic feasibility of reservoir. The strategies include Vertical well, Horizonta...
2021 IEEE International Conference on Imaging Systems and Techniques (IST)
2021 IEEE International Conference on Imaging Systems and Techniques (IST)
This paper presents a straight forward and technically sound approach for characterizing and plan... more This paper presents a straight forward and technically sound approach for characterizing and planning development of tight gas reservoirs (TGRs). Characterizing a reservoir is simply a determination of basic reservoir characteristics and it involves proper identification of dominant flow regime from acquired well test data. In TGRs the reservoir flow regime can be revealed using diagnostic plots of pressure transient and its derivative but using this technique may lead to erroneous outcomes due to extensive wellbore storage effect, heterogeneity and complexity of reservoir. To overcome such issues transient analysis techniques that utilize higher order pressure derivatives integrated with rate transient analysis (RTA) can reduce uncertainties associated with well test analysis and provide better estimate of reservoir dynamic parameters. Characterizing the reservoir results in determination of reservoir and production characteristics (permeability, fracture length, flow regime).
Solar Enhanced Oil Recovery (EOR) technique is one of the emerging technologies being adopted by ... more Solar Enhanced Oil Recovery (EOR) technique is one of the emerging technologies being adopted by exploration and production companies to achieve maximum oil recovery with less project cost and environmental effects. Usually, operators around the world use gas-driven generators to produce huge volume of steam to produce heavy oil reservoirs which are not only expensive but also produces carbon emissions leading to greenhouse gases. However, if this same quality steam can be generated through solar energy both problems can be tackled smartly. Thus, this paper aims to present solar potential for the northern field of Pakistan which is estimated through TRNSYS simulation software. Additionally, total incremental oil recovery is also calculated and compared with the different steam injection scenarios. Therefore, parabolic trough collector method has been selected to generate the required steam to heat the oil and reduce its viscosity. Three injection scenarios have been proposed (12-h i...
Since the last decades, the enhanced oil recovery (EOR) techniques have commonly been utilized to... more Since the last decades, the enhanced oil recovery (EOR) techniques have commonly been utilized to recover the residual oil from the reservoirs by applying primary and secondary recovery methods. However, due to reservoir complexity such techniques containing new materials and additives, the implementation of technology is challenging. In this experimental study, the nano-suspensions were combined with different polymers and their effective role in improving the oil recovery was investigated. Three different hydrolyzed poly-acrylamide (HPAM) polymers, i.e., HPAM-882, HPAM-60512, and HPAM-854, were incorporated, and two different types of nano-suspensions, i.e., KY-100 and KY-200, were taken, and then, the best polymer and nano-suspensions among them was selected. Then, further, the different combinations of slug injection were tested in low permeability sand pack models. After that, four different injection schemes were developed and their results were compared. In scheme A, two nano...
Arabian Journal of Geosciences
Microporous and Mesoporous Materials
Artificial Intelligence Review
Microporous and Mesoporous Materials
Arabian Journal of Geosciences
SN Applied Sciences, 2020
Journal of Porous Media, 2020
Modeling Earth Systems and Environment, 2020
Waterflooding operation is one of the conventional and well-tested methods to improve oil recover... more Waterflooding operation is one of the conventional and well-tested methods to improve oil recovery. However, in an oilwet reservoir system, high water mobility is a primary concern resulting in lower oil production. This study, hence, aims to investigate the impact of injection water salinity changes on oil production and water mobility. With this, the variation of wettability and production of salt due to changing injection water salinity is also a part of this study. This study initiates with generating a three-dimensional, two-phase oil and water model. The reservoir is initially in the oil-wet stage. During the simulation, the relative permeability curves are adjusted to mimic the wettability alteration from oil-wet to water-wet. Initially, the impact of salinity on the oil recovery, water mobility, and salt production is studied through the sensitivity analysis between the low-saline and high-saline water injection. Later, a comparison of two injection strategies, including direct line and five-spot, is conducted to determine an effective injection technique for the comprehensive analysis of salinity changes on a waterflooding project. At last, the sensitivity analysis of different water salinity ranges of 0-35,000 ppm has been performed to compare the water salinity effects on water mobility, oil production, and salt production. It has been found through simulation that the oil recovery is improved significantly as the salinity of injected brine decreases below 5000 ppm. The oil recovery factor obtained while decreasing the salinity is as high as 72%. Moreover, the water cut is highly delayed as the salinity of water decreases. Furthermore, salt production is significantly lowered at the production well. Hence, reducing the salinity of injection water proved to be an effective strategy to recover more oil from an oil-wet reservoir.
Malaysian Journal of Fundamental and Applied Sciences, 2020
Tight gas reservoirs are unconventional reservoir assets which have been the focus of major resea... more Tight gas reservoirs are unconventional reservoir assets which have been the focus of major research in the petroleum industry owing to the global decline in conventional reservoirs. They are widely unlocked by creating hydraulic fractures in the formation to increase the flow capacity and productivity. The objective of this paper is to analyze different fracture geometries and their effect on tight gas production. The reservoir simulation model of the tight gas reservoir has been built with single porosity approach. A single vertical well with a single stage fracture has been used in the model to predict the behavior of fracture geometry. The major parameters of fracture geometry studied are fracture half-length, fracture width, and fracture height. Four sensitivities are run over different fracture geometry that is constant height and constant width, constant height and changing width, changing height and constant width, and changing height and changing width, while increasing the...
Journal of Petroleum Exploration and Production Technology
Gas adsorption onto the shale system carries significant importance in accurately forecasting gas... more Gas adsorption onto the shale system carries significant importance in accurately forecasting gas production and estimating underground reserves. For the Marcellus shale system, the adsorption of gas also plays a critical role in ultimate recovery and overall reserves quantification. Yet, the effect of different adsorption characteristics in different Marcellus shale regions is not systematically analyzed together. In this study, the contribution of different gas adsorption phenomena in Marcellus shale for different fractured well configurations is investigated. The objective is to understand the reservoir production responses under various adsorption characteristics and well design. For this analysis, a mechanistic Marcellus shale model under confining stresses is numerically simulated with the available literature data. After that, six samples containing adsorption characteristics of different Marcellus shale regions are taken from the literature and specified in the model for acc...
Exploitation of unconventional resources is changing the global energy landscape day by day. The ... more Exploitation of unconventional resources is changing the global energy landscape day by day. The depletion of conventional resources and high oil and gas demands have shifted the attention towards such resources. Their development is also very challenging. However, advancement in technologies such as hydraulic fracturing and horizontal drilling boost up the exploitation tendency of these invincible assets. This paper deals with the determination of technically feasible development strategies in unconventional tight gas sand reservoir. Tight reservoirs have been characterized by low porosity and low permeability. Hence, a single-porosity simulation model of tight gas sand reservoir has been developed which describes the behaviour of gas flow in small pores of the reservoir. Various development strategies can be employed for tight gas reservoirs. The selection of best strategy involves the technical and economic feasibility of reservoir. The strategies include Vertical well, Horizonta...
2021 IEEE International Conference on Imaging Systems and Techniques (IST)
2021 IEEE International Conference on Imaging Systems and Techniques (IST)
This paper presents a straight forward and technically sound approach for characterizing and plan... more This paper presents a straight forward and technically sound approach for characterizing and planning development of tight gas reservoirs (TGRs). Characterizing a reservoir is simply a determination of basic reservoir characteristics and it involves proper identification of dominant flow regime from acquired well test data. In TGRs the reservoir flow regime can be revealed using diagnostic plots of pressure transient and its derivative but using this technique may lead to erroneous outcomes due to extensive wellbore storage effect, heterogeneity and complexity of reservoir. To overcome such issues transient analysis techniques that utilize higher order pressure derivatives integrated with rate transient analysis (RTA) can reduce uncertainties associated with well test analysis and provide better estimate of reservoir dynamic parameters. Characterizing the reservoir results in determination of reservoir and production characteristics (permeability, fracture length, flow regime).
Solar Enhanced Oil Recovery (EOR) technique is one of the emerging technologies being adopted by ... more Solar Enhanced Oil Recovery (EOR) technique is one of the emerging technologies being adopted by exploration and production companies to achieve maximum oil recovery with less project cost and environmental effects. Usually, operators around the world use gas-driven generators to produce huge volume of steam to produce heavy oil reservoirs which are not only expensive but also produces carbon emissions leading to greenhouse gases. However, if this same quality steam can be generated through solar energy both problems can be tackled smartly. Thus, this paper aims to present solar potential for the northern field of Pakistan which is estimated through TRNSYS simulation software. Additionally, total incremental oil recovery is also calculated and compared with the different steam injection scenarios. Therefore, parabolic trough collector method has been selected to generate the required steam to heat the oil and reduce its viscosity. Three injection scenarios have been proposed (12-h i...
Since the last decades, the enhanced oil recovery (EOR) techniques have commonly been utilized to... more Since the last decades, the enhanced oil recovery (EOR) techniques have commonly been utilized to recover the residual oil from the reservoirs by applying primary and secondary recovery methods. However, due to reservoir complexity such techniques containing new materials and additives, the implementation of technology is challenging. In this experimental study, the nano-suspensions were combined with different polymers and their effective role in improving the oil recovery was investigated. Three different hydrolyzed poly-acrylamide (HPAM) polymers, i.e., HPAM-882, HPAM-60512, and HPAM-854, were incorporated, and two different types of nano-suspensions, i.e., KY-100 and KY-200, were taken, and then, the best polymer and nano-suspensions among them was selected. Then, further, the different combinations of slug injection were tested in low permeability sand pack models. After that, four different injection schemes were developed and their results were compared. In scheme A, two nano...