| Development of horizontal wells technology, as one of the most important EOR technologies, has been applied industrially. However we are faced with difficulties in the workover of horizontal wells, such as complicated structure, friction and no operation rules. In this paper, the auther explains the workover of horizontal wells technology with analysis of the friction on the string, application on site, therefore, a key technical method was provided for oilfield development in EOR and determinnation of residual oil distibution. |
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