EVALUATION AND MODELING OF STEAM DRIVE IN DIATOMITE UNDER RESERVOIR CONDITIONS
Published In: INTERNATIONAL CONFERENCE ON FUTURE TRENDS IN MECHANICAL, PRODUCTION AND AUTOMATION ENGINEERING
Author(s): ARIFFIN BIN SAMSURI , REZA CHERAGHI KOOTIANI , SASAN MIRALI , SOROUSH CHEHREHGOSHA
Abstract: There are large petroleum deposits in low permeability diatomaceous rocks. These oil deposits form a substantial part of original oil trapped in the San Joaquin Valley, California. Water flooding and steam drive with hydraulically fractured injectors and producers are possible ways of recovering oil from such deposits. Water flooding in diatomaceous rocks has not been widely effective, primarily due to the low mechanical strength of the rock. The brittle formation fractures easily and fracturing leads to injector/ producer linkage. Steam injection on the other hand shows better prospects of performance in these reservoirs. Since diatomite is primarily silica, steam injection into a diatomite reservoir could cause some changes in reservoir rock characteristics due to dissolution, transport and re-precipitation of silica. This study is aimed at modeling mathematically this dissolution process and predicting the dissolution and precipitation rates by developing a simulator code that predi
- Publication Date: 04-May-2014
- DOI: 10.15224/978-1-63248-013-2-30
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ELECTROCHEMICAL CORROSION AND MECHANICAL PROPERTIES OF WELDED AA 6061 JOINED BY TIG AND MIG WELDING METHODS
Published In: INTERNATIONAL CONFERENCE ON FUTURE TRENDS IN MECHANICAL, PRODUCTION AND AUTOMATION ENGINEERING
Author(s): E. MAHDI , E. O. ELTAI
Abstract: Aluminium alloy 6061 T6 circular specimens were joined using TIG and MIG welding methods. Heat Affected Zone (HAZ) and Base Metal (BM) were separated from each other. Potentiodynamic polarization and open circuit potential were employed to investigate the corrosion properties. Mechanical properties were evaluated using tensile, and hardness tests. It was shown that corrosion resistance was less for the HAZ of TIG and MIG welded specimens. The BM showed better corrosion resistance. The corrosion potential of HAZs was largely fluctuated; the corrosion potential for BM was relatively stable. Both welding procedures affected the mechanical properties of the specimens. The ultimate tensile strength of the TIG welded AA 6061 T6 specimens was 193.107 MPa which is 54% that of the base metal. The ultimate tensile strength of the MIG welded AA 6061 T6 specimens was 155.725 MPa which is less than 50% that of the BM. The HAZ of TIG welded specimens had the lowest hardness, for MIG welding the weld
- Publication Date: 04-May-2014
- DOI: 10.15224/978-1-63248-013-2-31
- Views: 0
- Downloads: 0