公开(公告)号：EP2268890A2

公开(公告)日：2011-01-05

申请号：EP08869978.0

申请日：2008-12-29

申请人： Schlumberger Technology B.V. ,  PRAD Research And Development Limited ,  Services Pétroliers Schlumberger ,  Schlumberger Holdings Limited

发明人： DOWNTON, Geoff ,  KHAN, Waqar

IPC分类号： E21B21/08

CPC分类号： E21B21/08 ,  E21B21/00 ,  E21B2021/006

摘要： A method for creating a programmable pressure zone adjacent a drill bit bottom hole assembly by sealing near a drilling assembly, adjusting the pressure to approximately or slightly below the pore pressure of the well bore face to permit flow out of the formation, and, while drilling, adjusting by pumping out of, or choking fluid flow into, the drilling assembly between the programmable pressure zone and the well bore annulus to avoid overpressuring the programmable pressure zone unless required to control the well.

公开(公告)号：EP2268890B1

公开(公告)日：2014-07-16

申请号：EP08869978.0

申请日：2008-12-29

申请人： Schlumberger Technology B.V. ,  PRAD Research And Development Limited ,  Services Pétroliers Schlumberger ,  Schlumberger Holdings Limited

发明人： DOWNTON, Geoff ,  KHAN, Waqar

IPC分类号： E21B21/08

CPC分类号： E21B21/08 ,  E21B21/00 ,  E21B2021/006

公开(公告)号：EP2585857A2

公开(公告)日：2013-05-01

申请号：EP11810295.3

申请日：2011-07-19

申请人： Services Pétroliers Schlumberger ,  PRAD Research and Development Limited ,  Schlumberger Holdings Limited ,  Schlumberger Technology B.V.

发明人： ZIAUDDIN, Murtaza ,  PIPCHUK, Douglas ,  KHAN, Waqar ,  BROWN, George, A.

IPC分类号： G01V9/00 ,  E21B47/06 ,  G01V8/24

CPC分类号： E21B47/06 ,  E21B47/065 ,  E21B47/123

摘要： A method for determining flow distribution in a formation having a wellbore formed therein includes the steps of positioning a sensor within the wellbore, wherein the sensor generates a feedback signal representing at least one of a temperature and a pressure measured by the sensor, injecting a fluid into the wellbore and into at least a portion of the formation adjacent the sensor, shutting-in the wellbore for a pre-determined shut-in period, generating a simulated model representing at least one of simulated temperature characteristics and simulated pressure characteristics of the formation during the shut-in period, generating a data model representing at least one of actual temperature characteristics and actual pressure characteristics of the formation during the shut-in period, wherein the data model is derived from the feedback signal, comparing the data model to the simulated model, and adjusting parameters of the simulated model to substantially match the data model.

摘要翻译： 一种用于确定具有在其中形成的井筒的地层中的流量分布的方法包括将传感器定位在井眼内的步骤，其中传感器产生表示由传感器测量的温度和压力中的至少一个的反馈信号， 进入井眼并进入靠近传感器的地层的至少一部分，在井眼中关闭预定的关闭周期，产生表示模拟温度特性和地层的模拟压力特性中的至少一个的模拟模型 在关闭期间，生成表示关闭期间地层的实际温度特性和实际压力特性中的至少一个的数据模型，其中，从反馈信号导出数据模型，将数据模型与 模拟模型和模拟模型的调整参数，使其与数据模型基本匹配。