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Heavy Oil Viscosity Reduction Of Chemical Agents To Promote

Posted on:2013-06-30Degree:MasterType:Thesis
Country:ChinaCandidate:L LiuFull Text:PDF
GTID:2231330374476708Subject:Oil and Natural Gas Engineering
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Turpan-Hami Oilfield Lukeqin field is a deep oil reservoir, oil viscosity, formation water salinity and high. Mixing light viscosity reduction process played an important role in the lifting of Lukeqin heavy oil recovery, and achieved good results. However, in recent years, with the changes in the situation of Turpan-Hami Oilfield Development, the lifting technique of mixing light viscosity reduction is facing a severe test. Thin oil production can not meet the requirements of the Heavy Oil Production With the increase in the amount of Lukeqin heavy oil recovery and the rise of the water-bearing, thin doped increasing mixing light Jiangnian are facing a severe test. Oil production plant in Lukeqin stable production, must find a new shaft lifting process. Oil Well Lukeqin average moisture content of49percent, which Lu Lu8, Jade East202block of wells water content greater than50%reached the conditions of doped chemicals viscosity reduction. The key points of the technology heavy wellbore viscosity reduction process for heavy oil flow in the formation better able to seepage into the bottom of the well heavy oil can be used for this process. This article studies the promotion and application of chemical viscosity reducer in Lukeqin oilfield, including indoor and field trials in two parts.Indoor first heavy oil viscosity reduction of chemical agent supporting technology, chemical drop existing or immature adhesive formulation optimization, then the corresponding sets of wellhead seals developed, and finally supporting process improvement, demonstration of the Luke Qin oilfield chemicals viscosity reduction measures and technologies to be effective in relieving the oil extraction plant in Lukeqin mixing light oil situation, and laid a good foundation for the promotion and application of the viscosity reduction of chemical agents, has developed a wellhead efficient sealing device, in one fell swoop wellhead viscosity reduction process of the chemical agent leak problem in the domestic leading level.Indoor research and field test results show that the technology to improve heavy oil recovery, significantly improved the recovery efficiency, and has good economic benefits, should be comprehensively promote.
Keywords/Search Tags:heavy oil reservoir, improve oil recovery technology, molecularfilm, water plugging, field application
PDF Full Text Request
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