Schlumberger Technology Corporation

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Pierre F Le Foll

Paul B Guieze

Baptiste Germond

Jul Amado

James G Filas

Christopher Sarvari

Paul Guieze

A multizone testing system (), for the testing of subterranean layers, comprises an upper subsystem () comprising a control station (), a main isolation packer () for isolating the upper subsystem () from the lower subsystem (), a lower subsystem () comprising an array of individual apparatuses () connected in series, each apparatus () being adapted for the testing of one layer and comprising a series of remotely activated tools for hydraulically isolating and testing the corresponding layer and a communication system comprises communication means between the control station () and the surface and between the control station () and each of the individual apparatuses () in order to control the remotely activated tools of the individual apparatuses for sequential testing of the layers. A multizone testing method for the testing of a plurality of subterranean layers intersected by a well, using a multizone testing system () comprises the steps of running and positioning said system () into the well such that each individual apparatus () is adjacent to a layer to be tested and controlling the remotely activated tools of the individual apparatuses for a sequential test of the layers.

Downhole, single trip, multi-zone testing system and downhole testing method using such

The invention relates to a method and to an installation for separating out an effluent made up of a multi-phase fluid mixture. According to the invention, said installation includes gravity separator means whose geometrical separation characteristics can be adjusted during said separation operation. According to the invention, the method makes it possible to adjust the geometrical separation characteristics of the separator as a function of how the multi-phase composition of the effluent varies over time.

Method and an installation for separating out multiphase effluents

The invention relates to a gravity separator for an effluent made up of a multi-phase fluid mixture comprising at least a heavy first phase and a supernatant second phase. According to the invention, said separator includes adjustment means for adjusting its geometrical separation characteristics.

Gravity separator for multi-phase effluents

The invention relates to a method and to apparatus for thermodynamic analysis of a mixture of fluids, in which the volume of a sample of a given quantity of said mixture is caused to vary step by step and in monotonic manner, and the pressure of the sample is read at each step, the sample being stirred at each step so as to hasten the mixture reaching thermodynamic equilibrium. According to the invention, the sample is stirred by applying ultrasound to said sample by means of transducer ( ). The sample can be contained in a bag ( ) of flexible material immersed together with the transducer in a control fluid inside a rigid container ( ). The invention can be used to determine the bubble point of a mixture of hydrocarbons.

Method and apparatus for thermodynamic analysis of a mixture of fluids

A sample of fluid such as a gaseous fluid leaving a liquid/gas separator in a surface installation of an oil well, is taken continuously via a sampling tube. The tube opens out on the axis of a gas outlet pipe, facing towards the separator receptacle and located at the junction between the pipe and the receptacle. Sampling is performed isokinetically by regulating the flow rate in the tube by means of a regulator valve controlled by a regulator as a function of flow rates measured in the tube and in the pipe. In the tube, liquid is separated from the gas by means of a filter.

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La Foret Fouesnant, France

Pierre F Le Foll