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< Natural Gas and Oil > Editorial Department
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Tang Xiaoyong,Pu Liming
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Issue:ISSN 1006-5539
          CN 51-1183/TE

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    Your Position ：Home->Past Journals Catalog->2013 Vol.5

    Study on Staged Fracturing Process for Highly-deviated Wells in Block BS and its Application
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    Author's Workplace：
    Key Words： Dagang oilfield； Highly-deviated well； Downhole microseism； Fracturing
    Abstract： Dagang Oilfield block BS85 reservoir has such characteristics as poor physical property，high mudstone content and low natural productivity，it is necessary to conduct fracturing transformation so as to obtain commercial oil flow. Well BS19-67 is a high angle well in this block，with the maximum inclination of 67.69° ，which is a reservoir with the maximum transformation. This reservoir is developed by using casing cementing plus sliding sleeve staged fracturing technique for fractureing in 5 sections. Because no accurate in-situ stress orientation testing data of this area are available，it will be possible to form small angle between fracture azimuth and wellbore azimuth，which will increase the difficulty of construction. Therefore，applied are such construction techniques as proppant slug process and discharge capacity enlargement to assure the success rate. At the same time，downhole microseismic technology is applied to monitor fractures occurring probably in fracturing construction，which can provide the basis for optimization design in the future.
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