Sampling, coring and drilling equipment

From YMG

Contents 1 Sampling and coring equipment 1.1 OKEAN-0,25 grab sampler 1.2 KADR–1 Self-contained sea-floor coring system 1.3 Core pipes: 1.4 Vibrocores: 1.5 Sampling probes: 2 Drilling equipment 2.1 LITO 1 2.2 LITO 2 2.3 LITO 3 2.4 LITO 4 2.5 FGL

Sampling and coring equipment

OKEAN-0,25 grab sampler

The single probe technique is used to obtain a good quality sample and a photo picture simultaneously from the same point of the seabed, to study the structure of the sedimentary cover and also to confirm acoustic reflectors and images from sonographs, profilographs or samples taken with use of PT-148 core pipe.

KADR–1 Self-contained sea-floor coring system

The «Kadr-1» system can be used for studies of sediments and various geotechnical surveys. The main applications are in connection with offshore oil and gas exploration, the study of hydrothermally active oceanic areas, and in connection with ore formation-related geotechnical and environmental studies.

Structure of the system:
Outboard part	Shipboard part
Core pipe; self-contained digital thermo gradiometer; camera; water bottle.	unit for measurements recording; shipboard module of exploring of the engineering nature of sedimentary soils; software.

Core pipes:

Various modifications of vacuum corers of the Kalmar series (multi-blow, self-recoverable, rotating, unsupported, with or without air guns).

Very efficient for taking samples of sands, shales 3 — 20 m thick.

Vibrocores:

• VT-1 — for sampling sediments to 2 m depth. Diameter of vibro corer is 146 mm, diameter of the pipe — 125 mm.

• Vibro hammer with double load of 450 kg weight.

Sampling probes:

• Vacum hydrostatic sampling probes;

• Sediment corers — for point sampling of oozes with providing hermetical sample of pore water, etc.

• Core pipes for undisturbed coring, length — 1,5 m, diameter — 98 mm, water depth — from 0,5 m to 10–15 m.

Drilling equipment

Catamaran based PTS drilling rig. The operating equipment includes a winch, a rotator and a vibro-hammer. The penetration depth is to 100 m, a diameter of bore holes is 108 — 168 mm.

A catamaran based PTS-M drilling rig is a modified version of PTS including a rotator and vibro hammer. The penetration depth is up to 100 m, the bore hole diameter is 108 — 168 mm. Additionally there are three four-berths cabins, a galley, a mess room, a geological laboratory and a radio room in the two-level deckcastle.

START drilling rig is a modified drilling rig. The drilling equipment is located on the platform, mounted on casing. Drilling process is controlled remotely.

START implements a new efficient technology for drilling by rotary and pressing techniques. It can be used for offshore exploration, coring, geotechnical drilling and static probing from a single-column platform.

LITO 1

The drilling module on jack stands. It is used for drilling and taking samples with 10–12 m penetration, 108–127 mm diameter of boreholes in shallow shelf zones at a depth of 2,5 — 3 m.

LITO 2

The logistics module designed for transportation, loading/unloading equipment and tools. It can be used as well for food catering and recreational purposes and storage of auxiliary probing/sampling equipment.

LITO 3

Penetration drilling module for the technological equipment and equipment for dynamic testing.

LITO 4

Multi-purpose module for drilling with penetration to 108 — 164 mm, sampling and continuous multi-channeled seismic surveys in extremely shallow water depths.

FGL

FGL is a floating geological laboratory for initial processing of sediments and water samples for subsequent geological and geochemical studies.