Core Barrel Plastic Liner

//Core Barrel Plastic Liner
Core Barrel Plastic Liner2018-07-10T21:28:20+00:00

Core Barrel Inner Tube Plastic Liner

Plastic Core Liner - Drillwell LtdCore Barrel Drill-Line Inner Tube Plastic Liner ( Core Liner ) has been developed to assist and improve the recovery of Cores from soft, friable and broken formations. It is a simple design and low cost but very effective method of reducing drilling costs and improving drilling efficiency.

Our Core Barrel Drill-Line Inner Tube Plastic Liner consists of a clear, thin-wall extruded rigid plastic tube of which by accurate manufacturing processes is manufactured to close tolerances on both the outside and the inside diameters. Clearance between the O.D. of the “Drill-Line” and I.D. of the Core Barrel inner tube is there fore carefully controlled and allows easy fitting of the Plastic Tube into the inner tube in the field.

When the clear plastic material is used (inserted) it will not contaminate the Core sample during drilling and encapsulation. The material does not absorb water and will not swell or change shape.

Advantages Of The Core Barrel Drill-Line Inner Tube Plastic Liner

Plastic Core Liner - Drillwell LtdThe Drillwell Ltd Core Barrel Drill-Line Inner Tube Plastic Liner consists of a clear, thin-wall extruded rigid plastic tube of which by accurate manufacturing processes is manufactured to close tolerances on both the outside and the inside diameters.

Clearance between the O.D. of the “Drill-Line” and I.D. of the Core Barrel inner tube is there fore carefully controlled and allows easy fitting of the Plastic Tube into the inner tube in the field.

When the clear plastic material is used (inserted) it will not contaminate the Core sample during drilling and encapsulation. The material does not absorb water and will not swell or change shape.

  • Low coefficient of friction of the plastic material improves and assists the moment of the core into the tube.
  • Once the coring run has been completed the “Drill-Line” clear plastic tube can be withdrawn very easily from the inner tube with the core sample intact inside.
  • The recovered core sample may be encapsulated within the plastic liner by the fitting of plastic end caps to allow easy and safe transported to the laboratory etc.
  • “Drill-Line” is suitable for use in both single or double tube Core Barrels.
  • Should the Core contained in the plastic tube require close inspection or sampling on site the plastic liner maybe easily be cut with a sharp knife at the appropriate place.

All our Core Barrel Drill-Line Inner Tube Plastic Liner products are designed and manufactured in house by our fully qualified engineers allowing us to provide a custom service and a fast turn around.

It is necessary to use a Core Bit with a reduced Set Bore and a reduced Bore Corelifter when using the “Drill-Line” system.

Core Barrels To ISO3551-1 (BS 4019 Pt.3)

Designation “Drill-Line”
Tube I.D
Core Bit
Set I.D.
NWG 54.5mm 51.0mm
NWM 54.5mm 51.0mm
NWG 74.4mm 72.0mm
HWF 74.4mm 72.0mm
PWF 90.3mm 87.0mm
SWF 110.5mm 107.0mm
UWF 134.4mm 131.5mm
ZWF 153.4mm 150.0mm

Core Barrels – Air Flush

Designation “Drill-Line”
Tube I.D
Core Bit
Set I.D.
HWAF 70.0mm 68.0mm
412F 76.8mm 73.0mm

Core Barrels – Metric – ISO / BSI Hole Size

Designation “Drill-Line”
Tube I.D
Core Bit
Set I.D.
TNW 59.9mm 58.0 mm
TBW

Core Barrels – T2 Series To ISO 3552-1

Designation “Drill-Line”
Tube I.D
Core Bit
Set I.D.
T2-76 60.0mm 58.0mm
T2-86 70.0mm 68.0 mm
T2-101 82.0mm 80.0mm

Core Barrels – Metric – T6 Series

Designation “Drill-Line”
Tube I.D
Core Bit
Set I.D.
T6-86 66.25mm 64.0mm
T6-101 78.5mm 76.0mm
T6-116 92.5mm 90.0mm
T6-131 106.5mm 103.5mm
T6-146 121.0mm 118.0mm
T6-H 78.5mm 76.0mm
T6-S

Core Barrels – Metric – B Series

Designation “Drill-Line”
Tube I.D
Core Bit
Set I.D.
B-86 74.25mm 72.0mm
B-101 83.3mm 84.0mm
B-116 100.3mm 99.0mm
B-131 114.3mm 113.0mm
B-146 129.3mm 128.0mm

Core Barrels – WireLine

Designation “Drill-Line”
Tube I.D
Core Bit
Set I.D.
NQ 47.0mm 45.1mm
HQ 63.7mm 61.1mm
PQ 86.0mm 83.1mm
Geobore P 86.0mm 83.0mm
Geobore S 106.5mm 102.0mm
NDBGM 54.5mm 51.0mm

If you require any further information or a bespoke design then please email or contact us.