Schlumberger Technology Corporation

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Prad Research and Development Limited

Bertrand Theuveny

Valery Vasilievich Shako

Patrice Ligneul

Fikri John Kuchuk

Tullio Moscato

George Albert Brown

James G Filas

Stephane Hiron

Vyacheslav Pimenov

Anthony J Fitzpatrick

Alexander Starostin

Pavel Evgenievich Spesivtsev

Olivier Peyret

Sebastien Prangere

Maria Sidorova

Pavel Evegenievich Spesivtsev

An apparatus for performing a well test operation includes a tubular member having a surge chamber and a valve that can control fluid flow from a well into the surge chamber during the well test operation. The apparatus can also include a flow control device, in addition to the valve, for further controlling fluid flow into the surge chamber from the well. Flow rate and pressure data can be measured during the well test operation and used to estimate reservoir properties. Various other systems, devices, and methods are also disclosed.

Closed chamber impulse test with downhole flow rate measurement

A measurement device is configured in a shaped charge package to be utilized in a perforating gun section tool string. The measurement device may include for example thermal conductivity detectors (TCD) configured to measure fluid flow velocity and/or thermal characteristics of the flowing fluid. The measurement device may include for example a pair laterally spaced TCDs each having sensor faces positioned co-planar with a surface across which the fluid flows. The measurement device may include a recessed TCD, having a sensor face recessed below an opening in the exterior surface.

Method and apparatus for determining fluid flow characteristics

A first water injection into an injection well is carried out followed by a first shut-in of the injection well. A second water injection is carried out, a volume of the injected water exceeds several times a volume of water in the well in an intake interval. Then there is a second shut-in of the injection well, and during the second shut-in transient temperature profiles are registered within the intake interval by temperature sensors. Then a third water injection step is carried out and at an initial stage of the third injection transient temperature profiles in the intake interval are registered using the temperature sensors. The transient temperature profiles registered during the second shut-in period are analyzed and intake zone boundaries are determined. The transient temperature profiles registered at the initial stage of the third water injection are analyzed and a water intake profile is determined.

Method for determining a water intake profile in an injection well

Whiles moving a pipe string in a wellbore during tripping operations, pressure and temperature are measured. Based on the measured pressure and temperature, such parameters of a bottomhole and a near-bottomhole zone of the wellbore are calculated as skin factor, permeability, reservoir thickness, bottomhole pressure, and outflow or inflow from/to the zone under consideration.

Method for determining parameters of a bottomhole and a near-bottomhole zone of a wellbore

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Moscow, Russia

Bertrand Theuveny