公开(公告)号：US20110308788A1

公开(公告)日：2011-12-22

申请号：US12816749

申请日：2010-06-16

申请人： Kris RAVI ,  Etienne M. SAMSON ,  John L. MAIDA ,  William HUNTER

发明人： Kris RAVI ,  Etienne M. SAMSON ,  John L. MAIDA ,  William HUNTER

IPC分类号： E21B47/00

CPC分类号： E21B47/123 ,  E21B33/14 ,  G01D5/35303 ,  G01D5/35364

摘要： A method of controlling a well operation can include monitoring at least one parameter of cement lining a wellbore, the monitoring being performed via at least one optical waveguide, and modifying the well operation in response to the parameter being outside of a predetermined acceptable range. A well monitoring system can include at least one optical waveguide which is used to sense at least one parameter of cement lining a wellbore, an optical interrogation system optically connected to the at least one optical waveguide, and a control system which controls operation of at least one item of well equipment in response to information received from the optical interrogation system.

摘要翻译： 控制井操作的方法可以包括监测衬套在井筒中的水泥的至少一个参数，通过至少一个光波导执行监测，以及响应于该参数在预定的可接受范围之外来修改井操作。 良好的监测系统可以包括至少一个光波导，其用于感测衬里在井眼中的水泥的至少一个参数，光学询问系统，光学连接到所述至少一个光波导，以及控制系统，其至少控制至少 响应于从光盘询问系统收到的信息，一套井装备件。

公开(公告)号：US20120205103A1

公开(公告)日：2012-08-16

申请号：US13028542

申请日：2011-02-16

申请人： Kris RAVI ,  Etienne Samson ,  John L. Maida ,  William John Hunter

发明人： Kris RAVI ,  Etienne Samson ,  John L. Maida ,  William John Hunter

IPC分类号： E21B33/13

CPC分类号： E21B47/0005 ,  E21B33/14 ,  E21B47/123

摘要： Various disclosed cement slurry monitoring methods include monitoring one or more parameter of the cement slurry at various positions along the borehole during the curing process and responsively identifying a span over which the slurry extends and whether there are any gaps or voids in that span. At least some system embodiments include a distributed sensing arrangement to provide parameter measurements as a function of position and time during the curing process. A computer analyzes the measurements to determine the span of the cement slurry and whether any gaps exist. Contemplated measurement parameters include temperature, pressure, strain, acoustic spectrum, acoustic coupling, and chemical concentration. Individually or in combination, these measurements can reveal in real time the state of the cement slurry and can enable remedial actions to be taken during or after the curing process if needed to address deficiencies in the annular seal being provided by the cement.

摘要翻译： 各种公开的水泥泥浆监测方法包括在固化过程期间监测沿着钻孔的各个位置处的水泥浆的一个或多个参数，以及响应地确定浆料延伸的跨度以及在该跨度中是否存在间隙或空隙。 至少一些系统实施例包括分布式感测装置，以在固化过程中提供作为位置和时间的函数的参数测量。 计算机分析测量结果以确定水泥浆的跨度以及是否存在任何间隙。 考虑的测量参数包括温度，压力，应变，声谱，声耦合和化学浓度。 单独或组合地，这些测量可以实时地显示水泥浆的状态，并且如果需要解决由水泥提供的环形密封件的缺陷，可以在固化过程中或之后采取补救措施。