随钻电阻率成像测井在PY30-1气田地质解释中的应用
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摘要
PY30-1气田位于南海东部海域的珠江口盆地,已成功投产,其主力气层为韩江组SB13.8、SB15.5和珠江组MFS18.5层。为了增产降低储层风险,选择斯伦贝谢公司的随钻测井仪器geo-VISION(GVR)和adnVISION(ADN)进行水平井钻探,获得丰富的地质信息。A01H通过GVR图像解释,结合其他资料解释钻遇一正断层;A03H井通过GVR图像观察到钻井诱导缝和高导缝的存在,进行该井井旁地应力和裂缝分析,与地震蚂蚁追踪数据体分析相结合,解释水平段发生大量泥浆漏失的原因是由于天然裂缝的存在。根据已钻的井取得的成果和经验,及时调整其他6口水平井井轨迹,降低钻井风险,确保高的储层钻遇率。
PY 30-1 gas field is located in the Zhuhaikou of eastern South China Sea. It has been put into production. The main gas producing zones are SB 13.8, SB 15.5 of Hanjiang formation and MFS 18.5 of Zhujiang formation.Schlumberger LWD tool of geoVISION (GVR)and adnVISION (ADN )have been chose to drill horizontal wells in order to increase production.Abundant geological information is observed from GVR image. A01H drilled to a normal fault. There are induced and conductive fractures. Through stress and fracture analysis combined with seismic ant tracing data analysis, mud loss in the horizonal interval is caused by natural fractures.Well traces of the other 6 horizontal wells are adjusted in time according to the fruit and experience. It has reduced the drilling risk and ensured high probability of penetration.
PY 30-1 gas field is located in the Zhuhaikou of eastern South China Sea. It has been put into production. The main gas producing zones are SB 13.8, SB 15.5 of Hanjiang formation and MFS 18.5 of Zhujiang formation.Schlumberger LWD tool of geoVISION (GVR)and adnVISION (ADN )have been chose to drill horizontal wells in order to increase production.Abundant geological information is observed from GVR image. A01H drilled to a normal fault. There are induced and conductive fractures. Through stress and fracture analysis combined with seismic ant tracing data analysis, mud loss in the horizonal interval is caused by natural fractures.Well traces of the other 6 horizontal wells are adjusted in time according to the fruit and experience. It has reduced the drilling risk and ensured high probability of penetration.
引文
[1]于兴河、姜辉、施和生等,珠江口盆地番禺气田沉积特征与成岩演化研究[J],沉积学报,2007,25(6);876-883.
[2]斯伦贝谢公司,实时LWD:随钻测井,油田新技术,2000年秋季刊;58-78.
[3]杨世夺、雷霄、蔡军等,测井技术,2010,34(2);177-182.
[4]丁邦春、岑永静、郑海波等,随钻测井仪及应用[J],石油仪器,2009,12,36-41.
[5]陈云峰、魏中文、刘岩松等,水平井测井相应特征及其在地质导向中的应用[J],中国石油天然气集团公司第三届测井新技术交流会,2007,63-69.
[2]斯伦贝谢公司,实时LWD:随钻测井,油田新技术,2000年秋季刊;58-78.
[3]杨世夺、雷霄、蔡军等,测井技术,2010,34(2);177-182.
[4]丁邦春、岑永静、郑海波等,随钻测井仪及应用[J],石油仪器,2009,12,36-41.
[5]陈云峰、魏中文、刘岩松等,水平井测井相应特征及其在地质导向中的应用[J],中国石油天然气集团公司第三届测井新技术交流会,2007,63-69.
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