Maersk Olie Og Gas A/s

Total E&p Danmark A/s

Danmarks Tekniske Universitet

Mærsk Olie Og Gas A/s

Jens Henrik Hansen

Kristian Mogensen

Anne Ladegaard Skov

Sreejith Pulloor Kuttanikkad

A controller for controlling apparatus for performing a wellbore intervention or process, a corresponding processing device and method for simulating and/or controlling consecutive flow of a plurality of fluids in a wellbore of arbitrary geometry, the method involving forming, using or providing a model or simulation of the wellbore, the model or simulation representing the wellbore as a plurality of segments or portions; determining and/or providing one or more friction pressure drop components associated with at least one portion or segment of the wellbore for the plurality of fluids; and calculating pressure drop values for at least one segment or portion and/or between segments or portions using the one or more friction pressure drop components. Preferably, the method involves determining a pressure response during acid stimulation.

Apparatus and method for simulating and/or controlling fluid injection

The present invention relates to a method of providing a barrier in a fracture-containing system, comprising: i) Providing a treatment fluid comprising: a) a base fluid; b) an elastomeric material, wherein said elastomeric material comprises at least one polymer capable of crosslinking into an elastomer, and c) at least one crosslinking agent; ii) Placing the treatment fluid in a fracture-containing system; iii) Allowing the elastomeric material to crosslink with itself to form a barrier in said fracture-containing system; wherein the elastomeric material and/or the crosslinking agent are of neutral buoyancy with regard to the base fluid. The invention is contemplated to having utility not only in the oil-drilling industry but also in the plugging of fractures in sewer drains, pipelines etc.

Method of providing a barrier in a fracture-containing system

Disclosed is a system and a method of estimating a well inflow profile along a section of a wellbore of a well passing through a formation. The method comprises: collecting field data as a function of time during testing of the well, analyzing the collected field data to obtain selected field parameters, providing a created dynamic simulation model of the well inflow profile of the well based on at least the geometry of the well, defining a number of different possible inflow profile scenarios, simulating the defined inflow profile scenarios by means of the dynamic simulation model, analyzing the simulated inflow profile scenarios to obtain characteristics of intermittent or slug flow behavior in the form of selected modelling parameters as a function of time, comparing the selected modelling parameters as a function of time for each inflow profile scenario to the corresponding selected field parameters as a function of time and identifying the most likely inflow profile scenario on the basis thereof, and estimating the well inflow profile along the section of the wellbore based on the comparison of the selected modelling parameters as a function of time to the corresponding selected field parameters as a function of time.

Method of estimating well productivity along a section of a wellbore

A method and a system of analyzing multiphase fluid flow in at least one well or pipeline is provided, the method comprises characterizing slug flow in the multiphase fluid flow by receiving a plurality of well pressure data from the at least one well, processing the plurality of well pressure data to obtain a time-varying slug amplitude and/or a time-varying slug period for slugs in the slug flow, analyzing the slug amplitudes and/or the slug periods over a period of time to thereby determine a measure of well performance. Also an oil field monitoring system for an oil field comprising a plurality of wells is provided. Each well has a pressure gauge installed to measure a well pressure and is connected to a multiphase fluid flow analyzing system. An oil field unit receives the measure of well performance from the multiphase fluid flow analyzing system, and output the measures of well performance for each of the plurality of wells.

Multiphase fluid analysis

A wellbore () surrounded by a formation has a horizontal section provided with a non-cemented perforated liner (), thereby forming an annular space () between the liner and the formation. The annular space is divided into zones (zone, zone, zone) isolated from each other by means of respective external packers () arranged externally on the liner. Selective access to the zones is provided by means of an internal pipe () arranged inside the liner and provided with internal packers () corresponding to the respective external packers. For each of the zones, the internal pipe is provided with a valve () providing access between the inside of the internal pipe and the corresponding zone. Stimulation of the near-wellbore is performed by pumping acid or the like reactive fluid through the internal pipe into the wellbore and is performed simultaneously in adjacent zones of the annular space.

Method for the stimulation of the near-wellbore reservoir of a horizontal wellbore

The sealing device () includes an elongated body () adapted to be introduced into a tube-shaped channel () and including a sealing fluid placement section () arranged between a first and a second annular flow barrier (). The elongated body further includes a sealing fluid activation section () arranged between the second annular flow barrier () and a third annular flow barrier () and including a sealing fluid activation device () adapted to at least initiate or accelerate curing of the sealing fluid (). In operation, the elongated body may be displaced along the tube-shaped channel until the sealing fluid activation section is placed at a position where sealing fluid has been ejected by the sealing fluid placement section, and the sealing fluid activation device may be activated. Thereby, sealing fluid may be cured at selected locations along the tube-shaped channel after ejection of sealing fluid.

Growing community of inventors

Doha, Qatar

Jens Henrik Hansen