Sinvent As

Life Technologies As

Resman As

Qiagen Gmbh

Invitrogen Dynal As

Dynal Biotech Asa

Sintef

Spermvital As

Wellcem Innovation As

Kilaas, Lars

Skjetne, Paal

Zahlsen, Kolbjørn

Lars Kilaas

Geir Fonnum

Ruth Schmid

Arvid Trygve Berge

Heidi Johnsen

Elin Marie Aksnes

Per Martin Stenstad

Synne Larsen

Vidar Skagestad

Muhammed Talha Gokmen

Tom-Nils Nilsen

Nils Pontus Lundberg

Nini Kjus Hofsløkken

Jon Olav Bjorgum

Wilhelm Glomm

Odd Ivar Eriksen

Are Lund

Arne Lund Kvernheim

Davoud Tayebi

Ole Bernt Lile

Ole Widar Saastad

Marit Valeur Ramstad

Jostein Sveen

Grete Irene Modahl

John Ugelstad

Geir Klinkenberg

Elisabeth Kommisrud

Anne Dalager Dyrli

Eugenia Mariana Sandru

Kolbjorn Zahlsen

Erland Nordgard

Kolbjørn Zahlsen

Einar Dahl-Jörgensen

Paal Skjetne

Anne Hege Alm-Kristiansen

Wilhelm Robert Glomm

Nini Kjus Hofsloekken

Jon Olav Bjoergum

Per Nils Pontus Lundberg

Muhammed Talha GÖKMEN

Erland NORDGÅRD

Jon Olav Bjørgum

The present invention relates to a kit suitable for preparing a sustained release composition, in particular for preparing a sustained release composition comprising spermatozoa embedded within an alginate matrix.

Functionalized kit for preparing hydrogels

This invention relates to monodisperse cross-linked hydrogel polymer particles comprising a polymer formed from (a) a hydrophilic vinylic monomer; and (b) a crosslinker comprising at least two vinyl groups. The invention also relates to monodisperse seed particles with a Z-average diameter of from 100 nm to 1500 nm that comprise a plurality of non-crosslinked oligomers of poly N,N-dimethylacrylamide. Also provided are methods of forming the monodisperse cross-linked hydrogel polymer particles and monodisperse seed particles.

Inverse Ugelstad particles

Inverse ugelstad particles

Magnetic particles capable of binding a target substance, which comprise a magnetic material and a matrix material, wherein the magnetic material is remanent upon exposure to a magnetic field and the matrix material has a surface comprising functional groups which promote disaggregation of the particles in the presence of a liquid phase.

Binding a target substance

The present invention relates to novel compounds of polyfunctionalized polyethylene and polypropylene glycols, their synthesis and their use, in particular as tracers in applications related to oil and gas production, and especially as specific markers of various target fluids.

Chemical compounds

It is described a method and a system for wireless in-situ sampling of a reservoir fluid from a hydrocarbon reservoir comprising obtaining a number of local samples of the reservoir fluid from different zones of the reservoir at given times. Local characterization of production fluid is obtained based on identifying chemical fingerprints of each of the number of local samples. This information can be used to determine local production rates from different zones in the well or from coming led wells.

Method and system for wireless in-situ sampling of a reservoir fluid

A method for a rapid verification of satisfactory clean-up at the end of the completion process when starting production of petroleum fluids while the completion rig is still at the well. The method includes marking one or more of separated zones along the well by one or more distinct tracers, before starting production. The tracers are added along with the completion or the clean-up fluid, and the tracers are arranged to be released by relative high concentrations from each zone to an inflowing fluid of oil or gas.

Early verification of a production well

Method and agent for reducing water production from oil and gas wells. The agent comprises polymer, cross-linked particles which are stable in water-free solvents. The particles are manufactured in an oil-in-oil emulsion and are cross-linked with at least one water-stable cross-linker and at least one water-labile cross-linker. The water-labile cross-linker is chosen so that when it is opened or broken in a reaction with water a hydrophilic seat is formed which increases the particle's ability to swell in water. The particles furthermore comprise a controlled amount of an immobilized chemical compound which by means of the reaction between water and reactive groups in the polymer skeleton, become able to form chemical bonds to another particle, to another reactive seat in the same particle or to another compounds thereby increasing the agent's stability in the formation.

Method and chemical agent for reduction of water production from oil and gas containing wells

A tracer system comprising a tracer compound for a fluid system, the tracer compound comprising one or more polyether alcohol compounds. The one or more polyether alcohol compounds is arranged for being placed in contact with a first part of said fluid system. The one or more polyether alcohol compounds is truly monodisperse. The polyether alcohol compounds comprises one or more functional groups. The one or more truly monodisperse polyether alcohol compounds is arranged for being detected in a second part of the fluid system in fluid communication with said first part of said fluid system. The tracer compound is detectable in very low concentrations.

Tracer materials

A process for the preparation of coated polymer particles containing superparamagnetic crystals, said process comprising reacting surface-functionalized, superparamagnetic crystal-containing polymer particles of diameter less than 0.5 &#x3bc;m with at least one polyisocyanate and at least one diol.

Process for preparation of coated polymer particles containing superparamagnetic crystals

A process for the preparation of coated polymer particles containing superparamagnetic crystals, said process comprising reacting porous, surface-functionalized, superparamagnetic crystal-containing polymer particles of diameter 0.5 to 1.8 &#x3bc;m with at least one polyisocyanate and at least one diol or at least one epoxide.

Process for the preparation of coated polymer particles

A process for the preparation of polymer magnetic particles, which comprises: providing polymer particles having a porous interior, and contacting the polymer particles with a magnetic fluid comprising a homogeneous dispersion of magnetic particles, whereby the magnetic particles are incorporated into the porous interior to produce polymer magnetic particles.

Preparation of polymer particles

A process for the preparation of polymer magnetic particles, which comprises: providing a water phase containing magnetic components homogeneously dispersed therein, wherein the water phase is contacted with or further contains a polymerisable metal-containing or organic monomer which is soluble in the water phase, and polymerizing the monomer in the presence of the magnetic components so as to form polymer magnetic particles in which the magnetic components are substantially uniformly distributed; wherein at least a part of the polymerizing step is carried out in a water-in-oil emulsion in which the water phase containing the magnetic components homogenously dispersed therein is present as a discontinuous phase in a continuous oil phase.

Process

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Trondheim, Norway

Lars Kilaas