Phillips Petroleum Company

Sinvent As

Odd Ivar Eriksen

Ahmad Moradi-Araghi

Iqbal Ahmed

Aly-Anis Hamouda

Lars Kilaas

Are Lund

Davoud Tayebi

Arne Lund Kvernheim

Jostein Sveen

Marit Valeur Ramstad

Ole Widar Saastad

Ole Bernt Lile

Ivar Martin Dahl

Fu-Ming Lee

The invention relates to a system and a method for well completion, control and monitoring of processes in a reservoir. A combined prefabricated liner and matrix system ( ) with defined properties for fast and simple well and/or reservoir completion, monitoring and control is provided. An embodiment of the combined prefabricated liner and matrix system includes an outer perforated tubular pipe system , an inner tubular screen , and a matrix . A method for control and monitoring of processes in a well or reservoir using the combined liner and matrix system is also described. The combined liner/matrix system may be used in any process equipment, such as reactors, separators and storage tanks. The system may also be used in a gas/oil/water producing or injection well for well completion, control and monitoring.

Combined liner and matrix system

A method for monitoring hydrocarbon and water production from different production zones/sections in a hydrocarbon reservoir and/or injection wells and detection of different phenomena such as e.g. local variations in pH, salinity, hydrocarbon composition, temperature, pressure, microorganisms, and the difference between production of formation and/or injection water from various zones/sections. The method includes dividing regions around wells in the reservoir into a number of zones/sections, and injecting or placing specific tracers with unique characteristics for each zone/section into the formation in these regions such that tracers are placed as integrated parts of the well completion or placed and immobilized in these regions through injection, squeeze or by other techniques. The tracers can also be immobilized or placed on a filter, a casing or other constructions surrounding the well in each zone/section. The tracers are specific or introduced to give specific information from each zone/section. The method further includes chemically immobilizing or integrating the tracers in the formation or constructions or filters around the wells, the tracers (tracer carriers) being chemically intelligent and released as a function of specific events, and detecting the tracers downstream providing information about the various zones/sections. The method may be used in a local alarm system for water breakthrough or for improved oil and gas recovery (IOR) in horizontal production and injection wells.

Reservoir monitoring

A gelling composition and a process for using the gelling composition for oilfield applications are provided. The gelling composition comprises a water-soluble polymer, a crosslinking agent, and a liquid wherein the water-soluble polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The gelling composition can be used in drilling fluids, workover fluids, completion fluids, permeability corrections, water or gas coning prevention, fluid loss prevention, matrix acidizing, fracture acidizing, and combinations of any two or more thereof.

Compositions and processes for treating subterranean formations

A gelling composition and a process for using the gellimg composition for oilfield applications are provided. The gelling composition comprises a water-soluble polymer, a crosslinking agent, and a liquid wherein the water-soluble polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The gelling composition can be used in drilling fluids, workover fluids, completion fluids, permeability corrections, water or gas coning prevention, fluid loss prevention, matrix acidizing, fracture acidizing, and combinations of any two or more thereof.

A water-soluble polymer and a process for using the polymer for applications in a subterranean formation are provided. The polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The polymer can be used in drilling fluids, workover fluids, completion fluids, permeability corrections, water or gas coning prevention, fluid loss prevention, matrix acidizing, fracture acidizing, and combinations of any two or more thereof.

A composition comprising a nitrogen-containing olefinic compound and a process for using the nitrogen-containing olefinic compound to produce a water-soluble polymer which has applications in a subterranean formation are provided. The nitrogen-containing olefinic compound can be made from an amine and an alkylating agent. The polymer produced can be used in drilling fluids, workover fluids, completion fluids, permeability corrections, water or gas coning prevention, fluid loss prevention, matrix acidizing, fracture acidizing, and combinations of any two or more thereof.

Composition and processes for treating subterranean formations

A process for separating C.sub.2 -C.sub.4 alkenes from C.sub.1 -C.sub.6 alkanes comprises the presence of water vapor in the alkene/alkane feed and the use of an Ag.sup.+ -exchanged sulfonated copolymer of tetrafluoroethylene and perfluorovinyl ether having been prepared by one of several specific ion-exchange methods.

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Oslo, Norway

Odd Ivar Eriksen