Physical Simulation of Depleted Exploitation for Yingxi E32 Carbonate Reservoir in Qaidam Basin

2021 ◽  
pp. 1001-1008
Author(s):  
Xiang-rong Luo ◽  
Penggang Huang ◽  
Haijun Wang ◽  
Qian-hong Pan ◽  
Pengfei Zhang ◽  
...  
Keyword(s):  
Physical Simulation ◽  
Qaidam Basin ◽  
Carbonate Reservoir

Physical Simulation of Water Alternation Gas Technology at the Heavy Oil Carbonate Reservoir Conditions

2010 ◽  
Author(s):  
R.N. Diyashev ◽  
G.N. Piyakov ◽  
I.M. Iksanov ◽  
R.F. Gainetdinov ◽  
R.L. Rahimov ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Physical Simulation ◽  
Carbonate Reservoir ◽  
Reservoir Conditions

scholarly journals Physical Simulation of Colayer Water Flooding in Low Permeability Carbonate Reservoir in Middle East

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Xingwang Shi ◽  
Zhengming Yang ◽  
Yapu Zhang ◽  
Guangya Zhu ◽  
Qianhua Xiao
Keyword(s):  
Middle East ◽  
Physical Simulation ◽  
Carbonate Reservoir ◽  
Water Flooding ◽  
Low Permeability ◽  
Pore Throat ◽  
Large Pore ◽  
Production Models ◽  
Small Pore ◽  
Comprehensive Recovery

To study the flow mechanism under different displacement modes of low permeability carbonate reservoir in the Middle East and to improve the utilization of various types of reservoirs, the physical simulation experiments of water flooding by different displacement methods were carried out. Selecting two types of rock samples with different permeability levels, two-layer coinjection and separated production experiments by samples I and III and conventional water flooding experiments by samples II and IV were carried out. In addition, by using low magnetic field nuclear magnetic resonance, the development effect of microscopic pore structure under the different injection-production models was analyzed. Results show that, compared with the coinjection, the recovery rate of sample I was higher than II, 19.30%; sample III was lower than IV, 23.22%; and the comprehensive recovery degree reduced by 3.92%. NMR data also show that the crude oil is mainly distributed in the large pore throat; after water flooding, the displacement is also within the large pore throat, whereas the small pore throat is mainly obtained by the effect of infiltration absorption. The above studies provide a laboratory basis and foundation for the further development of low permeability carbonate reservoir in different Middle East strata.

scholarly journals Interaction Law between Natural Fractures-Vugs and Acid-Etched Fracture during Steering Acid Fracturing in Carbonate Reservoirs

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Yifan Dai ◽  
Bing Hou ◽  
Changlin Zhou ◽  
Kunpeng Zhang ◽  
Fei Liu
Keyword(s):  
Fracture Surface ◽  
Physical Simulation ◽  
Carbonate Reservoir ◽  
Natural Fracture ◽  
Simulation Experiments ◽  
True Triaxial ◽  
Acid Fracturing ◽  
Low Viscosity ◽  
Fracturing Experiments ◽  
Interaction Law

Steering acid fracturing is a technique that improves the conductivity of carbonate reservoir. It is widely used in a carbonate reservoir. However, due to the lack of comparative experiments, the application of steering acid to improve the fracturing results is still unknown. Therefore, a series of true triaxial acid fracturing experiments were conducted to study steering acid fracturing in carbonate reservoir. The carbonate specimens used in the experiment were from the Qixia group and Dengsi Member in Sichuan, China. In this study, slick water, cross-linked gel, and self-generating acid were used as ahead fluid to cooperate with steering acid. Experimental results show that (1) the low-viscosity ahead fluid with steering acid can result in more complex fractures; (2) the complexity of fractures is influenced by natural fracture and the viscosity of the ahead fluid; and (3) based on the 3D scanning results of the fracture surface, different ahead fluids will lead to different corrosion results. This study provides useful suggestions on steering acid fracturing design and physical simulation experiments.

Obtaining Relative Permeability Curve of Carbonate Reservoir by the Weighted Method

2019 ◽  
Vol 13 (1) ◽  
pp. 83-91
Author(s):  
Bin Huang ◽  
Zhenzhong Shi ◽  
Ying Wang ◽  
Cheng Fu ◽  
Meng Cai
Keyword(s):  
Relative Permeability ◽  
Physical Simulation ◽  
Carbonate Reservoir ◽  
New Method ◽  
Hydrodynamic Characteristics ◽  
Relative Permeability Curve ◽  
Porosity And Permeability ◽  
Weight Method ◽  
Oil Water ◽  
Relative Permeability Curves

Background: The oil-water relative permeability curve is an important experimental data and basis for oilfield development scheme and dynamic prediction. The characteristics of oil and water relative permeability curves in different reservoirs are otherness. Objective: In order to enable various effects to be reflected in the standardized relative permeability curve, the standardized relative permeability curve can reflect the characteristics of each core. Method: The core is taken from core wells in a similar flow unit. The oil-water relative permeability curves are measured by indoor physical simulation experiments. The oil-water relative permeability curves of representativeness and conforming to hydrodynamic characteristics are screened. Because the porosity and permeability of different cores have different effects on the relative permeability curve, the weight of the porosity and permeability of each core is added to the standard relative permeability curve in the process of solving standardized relative permeability curve. Results: A new method that the weight method to be used to solve the problem of the standardized relative permeability curve is obtained. The comparison of the new method and the average method shows that both of them are highly consistent. Conclusion: The patent on the solution of the relative permeability curve is improved. Considered the effect of different cores of porosity and permeability on the relative permeability curve. Calculated the weight of the porosity and permeability of different cores. The representative normalized relative permeability curve is obtained by using the weight method.

ANALISA POTENSI MINYAK DAN GAS BUMI DENGAN ATRIBUT SEISMIK PADA BATUAN KARBONAT LAPANGAN *ZEFARA* CEKUNGAN SUMATRA SELATAN

KURVATEK ◽  
2017 ◽  
Vol 1 (2) ◽  
pp. 21-31
Author(s):  
Fatimah Miharno
Keyword(s):  
Instantaneous Frequency ◽  
Carbonate Reservoir ◽  
Control Analysis ◽  
High Porosity ◽  
Hydrocarbon Accumulation ◽  
Seismic Attribute ◽  
Data Set ◽  
Log Data ◽  
Low Amplitude ◽  
Rms Amplitude

ABSTRACT*Zefara* Field formation Baturaja on South Sumatra Basin is a reservoir carbonate and prospective gas. Data used in this research were 3D seismik data, well logs, and geological information. According to geological report known that hidrocarbon traps in research area were limestone lithological layer as stratigraphical trap and faulted anticline as structural trap. The study restricted in effort to make a hydrocarbon accumulation and a potential carbonate reservoir area maps with seismic attribute. All of the data used in this study are 3D seismic data set, well-log data and check-shot data. The result of the analysis are compared to the result derived from log data calculation as a control analysis. Hydrocarbon prospect area generated from seismic attribute and are divided into three compartments. The seismic attribute analysis using RMS amplitude method and instantaneous frequency is very effective to determine hydrocarbon accumulation in *Zefara* field, because low amplitude from Baturaja reservoir. Low amplitude hints low AI, determined high porosity and high hydrocarbon contact (HC).  Keyword: Baturaja Formation, RMS amplitude seismic attribute, instantaneous frequency seismic attribute

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