Design Method of FRP Pipe for Oil Well Frontier
Takashi Shimosakon,
Masaki Uhara,
Taiga Tatsumi,
Shinichi Tamura,
Yoshinori Nishino
Issue:
Volume 3, Issue 1, January 2015
Pages:
1-12
Received:
4 February 2015
Accepted:
4 March 2015
Published:
13 March 2015
Abstract: New technologies such as the centrifugal winding method and improved GPI screw joints have expanded the application performance and research results of fiberglass reinforced plastic pipes over their long-term development. This study describes a strength design method for new oil well pipes, which are required for untapping deep oil wells as existing oil and gas fields become depleted. The durability of these pipes must exceed 30 years. Here, we quantified the withstanding pressure (100 MPa), depth (7000 m), heat resistance (250°C) and the pH of the corrosion resistance (pH = 2). We also propose a strength design method that specifies new OCTGs for a global standard; namely, the Global Oil & Gas Pipe Institute (GPI) standard.
Abstract: New technologies such as the centrifugal winding method and improved GPI screw joints have expanded the application performance and research results of fiberglass reinforced plastic pipes over their long-term development. This study describes a strength design method for new oil well pipes, which are required for untapping deep oil wells as existin...
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The Ability of Anilines Extracted from Iraqi Petrol on Preventing Deposits Formation in Crude Kerosene
Mohammad Jamil Abd Al-Ghani
Issue:
Volume 3, Issue 1, January 2015
Pages:
13-17
Received:
14 March 2015
Accepted:
27 March 2015
Published:
9 April 2015
Abstract: The oxidative degradation products formed under both the prolonged storage and thermal stress are a problem in the utilization of Kerosene fuels. Researchers are directed in developing fuel stabilizers that are increasingly cost-effective, do not degrade the performance of fuel and are environmentally acceptable. Our interest in anilines extracted from Iraqi crude oil has led to evidence that they are excellent antioxidant stabilizers for tetraline at elevated temperatures. The results of stability experiments for thermal and oxidative degradation of two crude Kerosene fuel samples obtained from al-Dora refinery with 0.20% sulfur contents (sample A), and from Kirkuk refinery with 0.25% sulfur contents (sample B) were evaluated in these stability tests in comparison with other well-known stabilizers. The samples were treated as follows: 1.They subjected to long period of storage (90 days) without any additives. 2. They exposed to thermal aging at elevated temperature (393K) without any additives for 3 hours. Chemical factors preventing formation of color, insoluble sediments and gums were studied by modeling generally accepted degradation mechanisms. In this paper we will report our mechanistic investigation into the chemical details of the stabilization and effect of chemical structure of extracted N,N-P-methyl phenyl acetone (MPA) and N, N- phenyl acetone (PA)on the activity of deposits formation in kerosene in a comparison with 2, 6-di-t-butyl-4- methyl phenol (Unol), and tertiary alkyl primary aniline (TAPA) with 9, and 12 carbon atoms.
Abstract: The oxidative degradation products formed under both the prolonged storage and thermal stress are a problem in the utilization of Kerosene fuels. Researchers are directed in developing fuel stabilizers that are increasingly cost-effective, do not degrade the performance of fuel and are environmentally acceptable. Our interest in anilines extracted ...
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