Shell Oil Comapny

Johan Dirk Jansen

Dirk Roelof Brouwer

Robert Nicholas Worrall

Pieter Karel Anton Kapteijn

Ivo P Stulemeijer

Roelof Daling

Carlos Alberto Glandt

Vincent Sebastiaan Droppert

Gerardus Jozef Peter Joosten

Cornelis Petrus Josephus Walthera Van Kruijsdijk

Arjen Michiel Wagenvoort

Renato Markovinovic

Duncan Ian Green-Armytage

Stijn Vlemmix

Bartholomeus G Van Walstijn

A new cultivar ofplant, 'SPECGP11', that is characterized by its white berries, its pure white flowers, and its burgundy fall foliage color.

plant named 'SPECGP11'

A method for producing hydrocarbon fluid, such as crude oil and/or natural gas, through a well or well cluster of which the trajectory is at least partly defined and iteratively optimized by an well trajectory optimization algorithm that is coupled to a finite difference reservoir simulation program that represents a hydrocarbon fluid containing reservoir as a set of grid cells with a specified permeability and fluid content, wherein the algorithm:

Method for producing hydrocarbons through a well or well cluster of which the trajectory is optimized by a trajectory optimisation algorithm

A method is disclosed for controlling production of oil and/or gas from an underground reservoir by means of a closed loop production control system, in which: an assembly of monitoring sensors () monitor the physical properties of hydrocarbon and other fluids within the reservoir; a plurality of high order and/or low order mathematical reservoir models () calculate each an estimate of the physical properties of hydrocarbon and other fluids in the hydrocarbon containing formation and in the wells; the mathematical reservoir models () are iteratively updated in response to data provided by the assembly of sensors such that any difference between the properties monitored by the assembly of sensors and those calculated by each of the reservoir models is minimized; an optimal mathematical reservoir model () or an optimal combination thereof is selected during at least one updating step for which an averaged difference between the calculated properties and the properties monitored by the assembly of sensors () is minimal; and an optimization algorithm () controls, on the basis of data provided by the selected optimal mathematical reservoir model or optimal combination thereof, production control assemblies of a plurality of wells which traverse the formation.

Closed loop control system for controlling production of hydrocarbon fluid from an underground formation

The inflow of fluid from an oil and/or gas bearing formation into an oil and/or gas production well is cyclically moved up and down along the length of an inflow region of the well by cyclically changing the opening of one or more control valves.

Method for controlling fluid flow into an oil and/or gas production well

Vibrations in borehole equipment are controlled by defining the energy flow through the equipment as the product of an 'across' variable and a 'through' variable, wherein fluctuations in one variable are measured and the energy flow is controlled by adjusting the other variable in response to the measured fluctuations in said one variable. Suitable variables for defining the energy flow are voltage times current of an electrical drive, pressure times flow rate of a hydraulic drive, or torque times angular velocity of any rotary drive.

Method and system for controlling vibrations in borehole equipment

Growing community of inventors

Rijswijk, Netherlands

Johan Dirk Jansen