CAJ | 학술논문

台南气田位于柴达木盆地三湖新拗陷中央凹陷区,地层水矿化度很高,导致储层电阻率很低,而且储层多为砂、泥岩薄互层,由于纵向分辨率的局限性,常规测井曲线无法真实反映砂、泥岩薄互层的地层特征,给油气识别造成很大困难.针对以往的提高测井曲线纵向分辨率的方法侧重理论、可操作性差的实际问题,斯伦贝谢公司提出了Sharplite薄层处理方法,结合高分辨率的FMI图像与常规测井曲线进行反演处理得到高分辨率测井曲线.台南气田的实际应用效果表明,Sharplite处理方法可以大大提高常规曲线的纵向分辨率,有效识别薄层油气.
태남기전위우시체목분지삼호신요함중앙요함구,지층수광화도흔고,도치저층전조솔흔저,이차저층다위사、니암박호층,유우종향분변솔적국한성,상규측정곡선무법진실반영사、니암박호층적지층특정,급유기식별조성흔대곤난.침대이왕적제고측정곡선종향분변솔적방법측중이론、가조작성차적실제문제,사륜패사공사제출료Sharplite박층처리방법,결합고분변솔적FMI도상여상규측정곡선진행반연처리득도고분변솔측정곡선.태남기전적실제응용효과표명,Sharplite처리방법가이대대제고상규곡선적종향분변솔,유효식별박층유기.
Tainan gas field is located at the central sag area of Qaidam Basin,Qinghai province,the field is very high in salinity,which results in very low reservoir resistivity,the reservoir rocks are dominated by thinly interbeded sandstone and mudstone.Because of the limitation of vertical resolution,conventional well logging curve can not really demonstrate the interbeded formation characteristics,which makes hydrocarbon recognition more difficult.The existing method improving vertical resolution of well logging curve is more placed on theory and geological data is lacking,the operability is poor.Sharplite thin bed processing method is presented by Schlumberger aiming at the situation mentioned above,high resolution well logging curve is obtained by integrating high resolution FMI images and conventional well logging curve to carry out reverse processing.The application in Tainan gas field shows the sharplite thin bed processing method can greatly improve the vertical resolution of conventional curves so as to effectively identify hydrocarbon in thin beds.