Schlumberger Technology Corporation

Colin Atkinson

Alexander F Zazovsky

Songming Huang

Raj Banerjee

Jeffrey Spath

Ian Bradford

GongRui Yan

Qing Yao

Gregory P Grove

Mark H Fraker

Michael K M Thambynayagam

Amina Boughrara

Franck B G Monmont

Provided is a tool-body that arranges ultrasonic and electrical capacitance sensors at close distances to the casing wall of the wellbore such that properties of thickness, flow velocity, acoustic impedance and the dielectric constant of the liquid layer are measured at a number of circumferential locations inside the casing of the wellbore. These measured values may then be combined to derive the average flow rate of the layer and also used to identify whether the liquid is water or condensate/oil, or a mixture of the two with a certain water-in-liquid ratio. Combined with a gas flow rate and a liquid droplets concentration measurement, the total liquid flow rate and liquid type can be derived.

Sensing annular flow in a wellbore

A system and method for controlling an advancing water front in a reservoir toward a wellbore is provided. The system has a production control unit. The production control unit has a reservoir unit for producing a reservoir model and a production path unit for producing a production path model that determines at least one pressure parameter about the wellbore during a life of the wellbore. The production control unit has a production optimizer unit for producing a well plan that optimizes a function of the wellsite. The production control unit may be for controlling an advancing fluid front in the reservoir with at least one control device, and wherein a production path is constructed based on the well plan.

System and method for controlling an advancing fluid front of a reservoir

To develop a flow control system for use in a well, a multi-level approach is used, where the multi-level approach includes setting goals for the flow control system. According to the goals set, an overall design of the flow control system is specified, and based on the specified overall design for the flow control system, operation of the flow control system is simulated.

Developing a flow control system for a well

A method of predicting wellbore stability is provided and includes: creating a parameterized model of a wellbore in laminated formation, the parameterized model including a plurality of laminated formation and wellbore related parameters; considering measurement data to determine the laminated formation and wellbore related parameters; updating the parameterized model by adopting the determined laminated formation and wellbore related parameters; and applying the updated parameterized model to derive a solution of wellbore stability.

Transversely isotropic model for wellbore stability analysis in laminated formations

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Middlesex, United Kingdom

Colin Atkinson