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Performance Study of Nano Additive for Lubrication & Friction Reducing of Drilling Operation & Pilot Scale Productionin Proposed Wells Condation |
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Mechanical friction during drilling operations is a problem in long narrow, highly inclined boreholes. Some of the cures include application of oil or pseudo oil based mud and lubricants. Use of oil and pseudo oil based muds is highly restricted because of environmental concerns. Even adding small amounts of oil-based lubricants to water based muds raise questions. Consequently, the value of finding an improved environmentally friendly friction reducer applicable in water based mud is high. In this study, we have tried to design water-based drilling fluids with the high lubricant characteristics by using the nano lubricant additives. |
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Performance Study of Nano Additives forReducing Formation / Drilling Fluid Interactions and Clay Swilling &Pilot Scale Production of Nano Additives |
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Drilling fluid/formation interaction (water adsorption, osmotic swelling and cation exchange) in hydrocarbon reservoirs caused major problems, such as well bore instability, bit balling, sticking drill strings, waste of time and over costs during drilling. In this project, performance of nano additive for reducing fluid/formation interaction, clay swilling in drilling operation will be investigated; also pilot scale of nano additive in wells condition will be produced. |
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Design, construction and use of Colloidal Gas Aphron Based Drilling Fluids |
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Due to their higher pore pressures, formations above and below these producing zones need to be stabilized by fluids with higher density. However, an exposure of a depleted zone to the required high-density fluid can cause a significant loss of the whole fluid and differential sticking. Furthermore, uncontrollable drilling fluid losses are at times unavoidable in the large fractures of these formations. So it is difficult to drill such zones economically and safely by means of conventional rig equipments. Underbalanced drilling may be an alternative, but the extra time and equipments can greatly increase the cost of the operation. Recently, a new drilling fluid technology has been developed in an attempt to eliminate just these discussed problems. This novel technology is based on aphrons uniquely structured micro-bubbles of air. The air used to generate aphrons is usually incorporated into the fluid with conventional fluid-mixing equipment at ambient pressure, thereby reducing costs and safety concerns associated with conventional air and foam drilling operations. In this project, it is presented the design and properties of aphron drilling fluids, and discuss how the fluid characteristics work together to provide superior performance in drilling operations that have a high risk of lost circulation. |
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Potential reduction of precipitation due to acidizing operation of Iranian hydrocarbon reservoirs |
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Acidizing is the oldest method of oil and gas wells stimulation that’s widely used in modern processes. Using and designing of surfactant and polymer provide possibility of formation damage reduction while acidizing operation. By the passage of time heavy organic compound in the iranian’s crude oil precipitation increasing, especially during well stimulation operation by acidizing. The organic material contains asphaltenes, paraffins and naphthenes acids. Study on the oil colloidal asphaltenes in the condition of well acid stimulation, stability and potential reduction of precipitation by using surfactants, was the challenge of this project. |
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