Scale Formation because of Water Incompatibility between Injection Water and Formation Water in Reservoir Pressure and Temperature Condition to Emphasis Thermodynamic Condition Changes –A Static Experimental Investigation (Part I)

2013 ◽  
Author(s):  
Mohammad Heshmati ◽  
Babak Fazel ◽  
Hassan Golghanddashti ◽  
Abbas Shahrabadi ◽  
Saeed Abbasi
Keyword(s):  
Experimental Investigation ◽  
Scale Formation ◽  
Reservoir Pressure ◽  
Formation Water ◽  
Thermodynamic Condition ◽  
Injection Water

Solubility Of Common Oil Field Scales Of Injection Water And High–barium Concentration And High–salinity Formation Water

2012 ◽  
Author(s):  
Amer Badr Merdhah ◽  
Abu Azam Mohd Yassin
Keyword(s):  
Oil And Gas ◽  
High Salinity ◽  
Sea Water ◽  
Water Injection ◽  
Gas Production ◽  
Oil Field ◽  
Formation Water ◽  
Oil And Gas Production ◽  
Barium Concentration ◽  
Injection Water

Kerak pemendapan merupakan satu daripada masalah paling penting dan serius dalam sistem suntikan air. Kerak kadangkala mengehadkan atau menghalang penghasilan gas dan minyak melalui penyumbatan matrik atau perpecahan pembentukan minyak dan jeda yang berlubang. Makalah ini mengetengahkan kesimpulan pengukuran makmal bagi kerak terbentuk di dalam keterlarutan medan minyak biasa dalam sintetik air masin (pembentukan air dan air laut) bagi pembentukan air yang mengandungi barium dan kandungan garam yang tinggi pada suhu 40 hingga 90°C pada tekanan atmosfera. Keputusan uji kaji mengesahkan pola kebergantungan keterlarutan bagi kerak medan minyak biasa pada keadaan ini. Pada suhu yang lebih tinggi, kerak bagi CaCO3, CaSO4, dan SrSO4 meningkat manakala kerak BaSO4 menurun disebabkan oleh keterlarutan CaCO3, CaSO4, dan SrSO4 menurun dan keterlarutan BaSO4 meningkat dengan kenaikan suhu. Kata kunci: Masalah pengskalaan; skala keterlarutan; paras kandungan garam tinggi; logam barium tinggi Scale deposition is one of the most important and serious problems which water injection systems are generally engaged in. Scale sometimes limits or blocks oil and gas production by plugging the oil–producing formation matrix or fractures and the perforated intervals. This paper presents a summary of the laboratory measurements of the solubility of common oil field scales in synthetic brines (formation water and sea water) of high–barium and high–salinity formation waters at 40 to 90°C and atmospheric pressure. The experimental results confirm the general trend in solubility dependencies for common oil field scales at these conditions. At higher temperatures the deposition of CaCO3, CaSO4 and SrSO4 scale increases and the deposition of BaSO4 scale decreases since the solubilities of CaCO3, CaSO4 and SrSO4 scales decreases and the solubility of BaSO4 increases with increasing temperature. Key words: Scaling problems; solubility of scale; high salinity; high barium

Numerical and experimental investigation of scale formation on steel tubes in a real-size reheating furnace

2019 ◽  
Vol 129 ◽  
pp. 460-467 ◽  
Author(s):  
M. Landfahrer ◽  
C. Schluckner ◽  
R. Prieler ◽  
H. Gerhardter ◽  
T. Zmek ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Scale Formation ◽  
Steel Tubes ◽  
Reheating Furnace ◽  
Real Size

scholarly journals MODERN APPROACH TO THE CHOICE OF COMPOSITIONS FOR TEMPORARILY BLOCK THE PRODUCTIVE RESERVOIR WELLS IN THE FIELDSWITH COMPLICATED MINING AND GEOLOGICAL CONDITIONS

2016 ◽  
pp. 51-56 ◽  
Author(s):  
R. A. Gasumov ◽  
T. Sh. Vagina ◽  
S. V. Kostukov
Keyword(s):  
Clay Minerals ◽  
Solid Phase ◽  
Reservoir Pressure ◽  
Formation Water ◽  
Reservoir Properties ◽  
Significant Deterioration ◽  
Modern Approach ◽  
Repair Work ◽  
Geological Conditions ◽  
Highly Effective

In modern conditions the complexity of conducting the repair work of wells has been steadily increasing. This is due to a significant deterioration of mining and geological conditions of oilfields - decrease of reservoir pressure, deterioration of reservoir properties of productive formations, the infiltration of the formation water, and others. Also, there are still relevant problems associated with conducting the works on wells in terrigenous reservoirs with heterogonous permeability containing clay minerals. In such conditions on the first place arises the question of preservation of reservoir properties of formations during the repair works. This problem can be solved with the use of modern highly effective blocking compositions with condensable solid phase.

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