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Keywords: Efficiency
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Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200542-MS
... Abstract The waterflood performance depends on two major components: the sweep efficiency and displacement efficiency. The sweep efficiency depends on proper understanding of the vertical and lateral distribution of reservoir properties. One of the methods to check and calibrate...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200560-MS
... Above Gas Co-injection (SWGCO) scheme is a preferable method for improving lateral and vertical sweep efficiencies. Sobers et al. , (2013) concluded that water injection rate appears to be more sensitive for CO 2 storage than oil recovery. The objective of this paper is to evaluate the effect...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200589-MS
... For efficiency, the winding number algorithm should be embedded within the orthogonal range searching during appending to the results list. This is to decrease the amount of extra memory to be used. It is counter-productive to include the points inside B but outside P. There are two main...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200615-MS
... unstructured grid cases [ Abushaikha et al., 2020 ]. Besides, the complex physics of multiphase flow makes it hard for the development of a reservoir simulator and enhances the nonlinearity of the system which can drastically reduce simulation efficiency. Thus, an accurate and computationally efficient...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200625-MS
... file society of petroleum engineers Efficiency operator source document database concept challenge vendor text analytic At the time, however, text analytics was not what it has become now. I was elected Survey Chair for the US upstream part of my company. In this volunteer role, I spent...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200639-MS
... ∂ x = 0 | x = L   a t   t > 0 Abstract During the implementation of microbial enhanced oil recovery (MEOR) technique in reservoirs, various reservoir and microbial kinetic parameters play major roles in governing the efficiency of crude oil recovery from hydrocarbon...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200653-MS
... and engineering systems in these networks in the stationary [ 2 , 3 ] and transient [ 4 - 6 ] regimes. The engineering goals have been predominantly to accurately evaluate the capacity of these systems and optimize the efficiency of their operations [ 7 ]. The essence of frequency control is the use...
Proceedings Papers

Paper presented at the SPE Europec featured at 81st EAGE Conference and Exhibition, June 3–6, 2019
Paper Number: SPE-195488-MS
...-efficiency injectors improves sweep efficiency in the reservoir. Finally, the optimized scenario has resulted in more than 15% incremental swept volume as compared to the basic development case. This work provides a comprehensive case study for better understanding the impact fracture growth...
Proceedings Papers

Paper presented at the SPE Europec featured at 81st EAGE Conference and Exhibition, June 3–6, 2019
Paper Number: SPE-195472-MS
... Abstract Algebraic Multigrid (AMG) methods have proven to be efficient when numerically solving elliptic Partial Differential Equations (PDE). In reservoir simulation, AMG is used together with the Constrained Pressure Residual (CPR) method to solve a partially decoupled pressure system...
Proceedings Papers

Paper presented at the SPE Europec featured at 81st EAGE Conference and Exhibition, June 3–6, 2019
Paper Number: SPE-195543-MS
..., with an average 50% clay content, could hold large cation-exchange-capacity and significantly improved membrane efficiency, which may promote swelling and changes in the stress. In addition, large temperature-gradient effects due to cold water contacting the formation has not been investigated in detail. A new...
Proceedings Papers

Paper presented at the SPE Europec featured at 81st EAGE Conference and Exhibition, June 3–6, 2019
Paper Number: SPE-195566-MS
... Abstract A Water-alternating-gas (WAG) injection is a broadly practised technique in oil fields. Gas viscosity is a significant parameter that can affect the efficiency of gas and WAG injections. By conducting the current coreflood experiments at reservoir conditions, we aimed to investigate...
Proceedings Papers

Paper presented at the SPE Europec featured at 81st EAGE Conference and Exhibition, June 3–6, 2019
Paper Number: SPE-195524-MS
... present value (NPV); however, at some point during the progression from vertical to horizontal wellbores, many within the industry have forgotten about the learnings that can still be gained from current fracture models. Engineered completions have been largely replaced by spreadsheet efficiencies...
Proceedings Papers

Paper presented at the SPE Europec featured at 80th EAGE Conference and Exhibition, June 11–14, 2018
Paper Number: SPE-190770-MS
... Abstract Polymer flooding has increasingly been considered for heavy oil recovery applications. This has been encouraged by positive results from field applications at e.g. Pelican Lake and Tamaredjo and lab experiments showing that highly efficient recovery can be obtained at mobility ratios...
Proceedings Papers

Paper presented at the SPE Europec featured at 80th EAGE Conference and Exhibition, June 11–14, 2018
Paper Number: SPE-190817-MS
... on final oil recovery regardless wettability. The 0PV maturity (secondary polymer flooding) leads to the best sweep efficiency while final oil production decreases when the polymer flood maturity is high (late polymer injection after waterflooding). A difference of 15% in recovery is observed between...
Proceedings Papers

Paper presented at the SPE Europec featured at 80th EAGE Conference and Exhibition, June 11–14, 2018
Paper Number: SPE-190791-MS
... Abstract This paper was written with the main propose to share the experience of more than ten years of cyclic steam stimulation (CSS) in a heavy oil field with a big amount of challenges such as low injectivity, sanding, steam channeling, low steam efficiency, among others. For each item...
Proceedings Papers

Paper presented at the SPE Europec featured at 80th EAGE Conference and Exhibition, June 11–14, 2018
Paper Number: SPE-190877-MS
... Efficiency sweep efficiency Artificial Intelligence spontaneous imbibition dadp metric flow diagnostic shape factor fracture Modeling & Simulation transfer function ToF fracture concept Geiger society of petroleum engineers fractured reservoir where v is the velocity field and φ...
Proceedings Papers

Paper presented at the SPE Europec featured at 80th EAGE Conference and Exhibition, June 11–14, 2018
Paper Number: SPE-190876-MS
... methods Fluid Dynamics Upstream Oil & Gas heterogeneity displacement experiment injection recovery permeability ratio permeability heterogeneity co 2 composite sample flow in porous media immiscible co 2 layered sample crossflow Efficiency core sample reservoir society of petroleum...
Proceedings Papers

Paper presented at the SPE Europec featured at 80th EAGE Conference and Exhibition, June 11–14, 2018
Paper Number: SPE-190866-MS
.... In this paper, the impact of rheology on viscous oil displacement efficiency and front stability is investigated in laboratory flow experiments monitored by X-ray. Displacement experiments of crude oil (~500cP) were performed on large Bentheimer rock slab samples (30×30cm) by secondary injection of viscous...
Proceedings Papers

Paper presented at the SPE Europec featured at 80th EAGE Conference and Exhibition, June 11–14, 2018
Paper Number: SPE-190855-MS
... flooding typically having better microscopic displacement efficiency than water flooding, however, gas can have a high mobility ratio causing poor stability of the injection front leading to gas overrun giving poor horizontal sweep. Water flooding meanwhile typically has better macroscopic sweep efficiency...
Proceedings Papers

Paper presented at the SPE Europec featured at 80th EAGE Conference and Exhibition, June 11–14, 2018
Paper Number: SPE-190834-MS
... in the Southern North Sea (SNS) area by other operators. The well architectures in these fields are simple and treatment for halite deposition is carried out by dumping fresh water manually from surface. However experience from these operators, indicates that this approach was not very efficient. This has...

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