西南石油大学学报(自然科学版) ›› 2005, Vol. 27 ›› Issue (2): 31-33.DOI: 10.3863/j.issn.1000-2634.2005.02.009

• 石油与天然气工程 • 上一篇    下一篇

岩石矿物成分与可钻性关系研究

熊继有1 李井矿2 付建红1 周伟1 周鹏高1 薛亮1   

  1. 1.油气藏地质及开发工程”国家重点实验室(西南石油学院),四川 成都 610500;2.华北石油管理局第二钻井工程公司
  • 收稿日期:2004-09-24 修回日期:1900-01-01 出版日期:2005-04-20 发布日期:2005-04-20

Research of the Relationship between Rock Mineral Composition and Drillability

XIONG Ji-you1 LI Jing-kuang2 FU Jian-hong1 et al   

  1. Southwest Petroleum Institute, Chengdu Sichuan 610500, China
  • Received:2004-09-24 Revised:1900-01-01 Online:2005-04-20 Published:2005-04-20

摘要: 钻井地层岩石的物理力学性质和矿物成分性质是实现科学快速钻井的基础数据,但是矿物成分对可钻性的影响一直没有得到重视。取一研究油区以录井资料的地层岩屑为研究对象,对塑性泥岩、细砂岩和砾岩三种岩屑进行了较全面的矿物成分鉴定分析。研究结果表明,研究油田区块岩石的矿物成分主要以石英、粘土、斜长石、方解石和正长石五种矿物成分为主。矿物成分中含量较高的粘土和斜长石含量随井深增加而降低;石英含量随井深增加而增大。泥岩的可钻性级值随粘土的增加有增加趋势,随石英含量的增加而增大。砂岩的可钻性级值随粘土含量的增加有降低趋势,而随石英含量的增加而增大。砾岩的可钻性级值随粘土和石英含量的增加而下降。

关键词: 地层岩石, 矿物成分, 鉴定分析, 可钻性, 机械钻速

Abstract: The physics mechanics properties and mineral composition properties of the drilling strata rock are foundational data that carries out the fast and scientific drilling, but the influence of mineral composition to drillability hasn't been get the value. This paper put forward according to strata rock scraps datas of well logging as research object, carried on rather overall mineral composition identify and analysis to the plastic mudstone, fine sandstone and conglomerate. The results indicated that, the mineral composition t of rock in the oil-field area is mainly quartz, clay, plagioclase, calcite and orthoclase.The mineral composition contents of clay and plagioclase decline; But the quartz content increases with the increasing of well depth. The drillability value of mudstone has the trend of decline with the increment of clay content, but increase with quartz content. The drillability value of sandstone has the trend of decline with the increment of clay content, but increase with quartz content. The drillability value of conglomerate has the trend of decline with the increment of clay and quartz contents.

Key words: strata rock, mineral composition, identify and analysis, drillability, penetration rate

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