斯通利波在碳酸盐岩储层有效性评价中的影响因素分析

在缝洞型碳酸盐岩地层评价中,应用偶极子声波测井技术结合常规测井资料、电成像测井资料,能够为准确进行储层有效性评价提供技术支撑。以塔里木盆地塔北隆起轮南低凸起新垦-哈拉哈塘地区为例,根据偶极子声波测井资料统计了钻遇储层时间与测量偶极子时间间隔,分析了斯通利波在碳酸盐岩储层有效性评价中的影响因素。研究表明,钻遇储层时间与测量偶极子时间间隔较短,斯通利波能够很好地评价储层的有效性,钻遇储层时间与测量偶极子时间间隔较长,斯通利波不能很好地评价储层的有效性。为此,测井时应尽可能缩短钻遇储层时间与测量偶极子声波的时间间隔。

The Influential Factor Analysis of Stonely Wave in Evaluating the Effect of Carbonate Reservoirs

Dipole array sonic logging technique with conventional and electricity imaging logging provided technical support for accurate evaluation of reservoirs in fracture-voggy carbonate reservoir evaluation.By taking the Xinken-Halahatang Area of Lunnan Low Salience of the Tabei Uplift in Tarim Basin for example,statistics were made on the time interval between drilling reservoir and measured dipole array sonic log and the influencing factors of Stonely wave in carbonate reservoirs were analyzed.The result show that Stonely-wave can be used for better evaluating the effective reservoir better with the shorter time interval between drilling reservoir and measured dipole array sonic logging,therefore the time interval should be shortened as much as possible in well logging.