公开(公告)号：US20160024914A1

公开(公告)日：2016-01-28

申请号：US14550168

申请日：2014-11-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Mehdi Ghommem ,  Reza Taherian ,  Stephen John Remane Dyer ,  Xiangdong Qiu

IPC: E21B49/00 ,  G01V1/40 ,  E21B43/25 ,  G01V3/20

CPC classification number: E21B49/00 ,  E21B43/25 ,  E21B43/26 ,  G01V1/40 ,  G01V1/44 ,  G01V3/20

Abstract: A logging tool is disposed in a wellbore during an acidizing operation. The logging tool may be an acoustic tool, a resistivity tool, or a neutron tool. Measurements are made using the logging tool on a region of a formation penetrated by the wellbore and being subjected to the acidizing operation. A formation property is inferred at one or more depths of investigation within the region using the measurements, and acidizing operation management decisions are made based on the determined inferred property. The inferred property may also be simulated. A minimized difference between the inferred formation property and the corresponding simulated formation property is determined, and acidizing operation management decisions are made based on the determined difference. The inferred property may be acoustic velocity, conductivity peak observation time, near-to-far detector count ratio, or porosity. An acidizing operation management decision may be to maintain, increase, or decrease an acid injection rate.

Abstract translation: 在酸化操作期间，测井工具设置在井眼中。 测井工具可以是声学工具，电阻率工具或中子工具。 使用测井工具在井眼穿透的地层区域进行测量，并进行酸化操作。 使用测量在区域内的一个或多个调查深度推断地层属性，并且基于所确定的推断属性进行酸化操作管理决定。 也可以模拟推断的属性。 确定推断的形成特性与相应的模拟形成特性之间的最小化差异，并根据所确定的差异进行酸化操作管理决定。 推断的属性可以是声速，电导峰观测时间，近到远检测器计数比或孔隙度。 酸化操作管理决定可以是维持，增加或降低酸注射速率。