Fugro Engineers B.v.

Fnv IP B.v.

Fugro Technology B.v.

Peter Nicolaas Looijen

Herman Maria Zuidberg

Devrez Mehmet Karabacak

Bastiaan Meulblok

Adrianus Petrus Maria Brabander

Jamshid James Gharib

Eric Meijer

Henk Nebbeling

Jacobus Gerardus Kolenbrander

A pin point corer for collecting samples from a seabed of a sea, having a control unit to be positioned on a vessel or similar remote position, a top lift unit, which can be attached to a lifting and lowering unit of a vessel via an cable, such that it can be lifted and lowered relative to the seabed, a corer unit, releasable attached to the top lift unit by a fixation unit and arranged for being at least partly driven into layers of the seabed to collect the samples from there, e.g. when released from the top lift unit, wherein the top lift unit comprises a positioning unit bi-directionally communicating with the control unit for controlling the position of the corer unit. The invention also relates to a respective system and a method for collecting samples by use of such a pin point corer.

Device, system and method for collecting samples from a bed of a waterbody

The invention relates to a probe arranged for subsurface penetration of a soil for measuring properties of the soil. The probe comprising a probe body and at least one fiber optical sensor. The at least one fiber optical sensor is arranged for measuring at least one of a cone resistance, sleeve friction, pore water pressure or inclination.

Probe for determining soil properties

The present document relates to a piston corer for acquiring a soil sample. The piston corer comprises a sample reception cylinder for taking in and retaining the soil sample, and which comprises a piston. The piston is moveable over a piston stroke inside the sample reception cylinder. An intake opening at a first end of the sample reception cylinder allows to receive the soil sample upon penetration of the ground, and the piston is configured to move in a direction away from the intake opening during taking in of the soil sample towards an end position of the piston stroke. The piston corer further comprises an activator cooperating with a valve arranged for closing of the intake opening upon activation. The activator is configured for activating a closing action of the valve in response to the piston reaching the end position of the piston stroke. The document further relates to a method of acquiring a soil sample using such a piston corer.

Piston corer and method of acquiring a soil sample

Geotechnical apparatus comprising at least one rod provided with a probe, which rod has a longitudinal bore extending along its body which is in fluid communication with one or more lubricating openings behind the probe for introducing lubricant along the rod's superficial area, wherein the apparatus further comprises a drive unit for the at least one rod for pushing said rod into the ground or pulling it from the ground.

Geotechnical apparatus comprising at least one rod provided with a probe

Immersion depth measurement device comprising a first absolute pressure sensor and a second differential pressure sensor, wherein the first and the second pressure sensor are arranged to measure ambient pressures, and wherein the second differential pressure sensor connects to the ambient through two separate channels, at least one of which is closable.

Immersion depth measurement device

A geotechnical apparatus comprising a holder with a coiled rod with a probe, such as a penetrometer, a rod bending/straightening device and a drive unit for both uncoiling the coiled continuous rod and pushing the uncoiled rod with the probe into the ground and for pulling such a rod with the probe out of the ground and recoiling the continuous rod, wherein the drive unit comprises two grippers to alternatingly grip the rod and move it along its longitudinal axis over a predefined length, the bending/straightening device has a first set of rollers, at least two of which are at one side of the rod and the remaining rollers are at an opposing side of the rod, such that the rollers convert the coiled rod to an essentially straight rod when uncoiling and convert the straight rod to a coiled rod of essentially constant coil diameter when coiling.

Geotechnical apparatus having bendings/straightening device equipped with sets of rollers

Handling unit equipped to acquire a sample from a seabed top layer by retracting and retrieving a piston corer holding the sample from a seabed, and to remove the sample from the piston corer, wherein the handling unit is a standalone unit arranged for mounting on a vessel and for retrieval of a sample from the piston corer while it remains vertical. The handling unit comprises a container with dimensions and/or lifting points and/or connections as provided on a standard sea freight container. It also comprises a lifting device which is foldable out of and back into a container of the handling unit.

Method, handling unit and stand for acquiring a sample from a seabed top layer

Offshore drilling installation comprising a platform selected from the group comprising a vessel, a pontoon, a jack-up, and further comprising a drill string drivingly connected with said platform and optionally provided with a heave motion compensator, wherein at its lower end the drill string is pro-vided with a drill bit, and wherein a seabed template suspended with lift wires from the platform is placed on a seabed, and wherein clamping means mounted in the seabed template are provided for fixing the drill string relative to the seabed template, which clamping means are embodied as a chuck which is arranged for clamping the drill string whilst enabling the drill string's rotation.

Offshore drilling installation and method for offshore drilling

A movable supporting construction for placing on a floor, comprising a lower part and an upper part cooperating with said lower part, wherein the lower part is designed to rest on the floor and to assume a position that is determined by the condition of the floor, and the upper part has a first and a second position, wherein in the first position, the upper part is suspended freely above the lower part and in the second position, the upper part rests on the lower part maintaining a predetermined invariant position, wherein in the second position, the lower part and the upper part are in line contact, thereby determining a contact line that forms at least a portion of a closed line.

Movable supporting construction

The invention relates to a downhole rotary coring device placeable in a drill string and comprising a head section, a motor, and a core barrel having an outer motor comprising a rotor connected to the outer barrel and a stator to the head section, whereby the rotor and the stator are movable with respect to each other in the longitudinal direction of the drill string.

Downhole coring device

An apparatus for taking a soil sample includes a drill pipe, a first driving gear for introducing the drill pipe into the soil, a sampling bush which movably fits into the drill pipe and a second driving gear for introducing the sampling bush into the soil.

Growing community of inventors

The Hague, Netherlands

Peter Nicolaas Looijen