Rotary Cutters

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Wireline Equipment Catalogue v.3.2 | Flopetrol

Flopetrol

A Wireline Cutter is required when a slickline or stranded wireline must be cut in the well. The Flopetrol* Wireline Cutter is run down under its own weight guided by the line and when it strikes the stuck tool, it cuts the wire and wedges it into its body. Subsequently the cutter will be retrieved along with the cut wire.

When the cutter strikes the rope socket of the stuck tool, the shock provided by the inertia of the hammer causes a shear pin to shear and the knife then rotates, cutting the wire. The rotation of the knife also pushes up a tapered key, wedging the wire into the cutter’s body.

The Flopetrol wireline cutter is supplied in two models, one being designed for use with slicklines, the other for use with stranded lines. Both models can be supplied in two versions. The standard version is the one normally used, but if there is any risk of cutting the wireline at an interface, the interface version using a ‘go devil’ is preferred. The hammer section of the standard cutter is used as the ‘go devil’ on the interface version.

The Flopetrol cable cutter has the following advantages:

• no risk of accidental cutting at an interface

• will not cut against the tubing

• a clean cut by shearing is obtained even with regular use over a long period, due to the special knife shape

• wire is cut short near to the rope socket: 1 inch (25 mm) for the slickine model, 2 inches for the stranded line model

• cutting force is provided by the cutter’s own momentum rather than an outside energy supply

• wire cutting and retrieval and cutter fishing are carried out in one operation

Slickline - M-802709Stranded Line - M-802721

(See charts overleaf)

Wireline O

perations - Fishing Tools

Flopetrol - Rotary Wireline Cutters

WIRELINE OPERATIONS: FISHING TOOLS

* Denotes the mark of Schlumberger

When the cutter strikes the rope socket of the stuck tool, the shock provided by the inertia of the hammer causes a shear pin to shear and the knife then rotates, cutting the wire.

Standard C

utter

Wire

Rotating Knife

Fixed Knife

Shock

Cutter D

etail



Flopetrol

Wireline O





Interface Cutter

FLOPETROL ROTARY WIRELINE CUTTERS - SPECIFICATIONS

Cable CutterVersion

Assembly Number

Capacity

Maximum OD

Length ‘L1’

Go-devil Length ‘L2’

Weight

Go-devil Weight

Remark

Slickline 1 1/2”Standard and Interface

M-802709

0.072” - 0.108”

1 29/64” (37 mm)

26 1/2” (672 mm)With Hammer

11 1/4” (287 mm)Without Go-devil

- 23 5/8” (600 mm)

10.5 lbm (4.8 kg)With Hammer

4.5 lbm (2.1 kg)Without Go-devil

- 9.5 lbm (4.3 kg)

The line is cut 1” from the Rope Socket

Slickline and Stranded 1 7/8”Standard and Interface

M-802721

0.092” - 0.250”

1 29/64” (37 mm)

52 7/8” (1342 mm)With Hammer

16 5/8” (422 mm)Without Go-devil

- 47 1/4” (1200 mm)

32.5 lbm (14.8 kg)With Hammer

9.5 lbm (4.3 kg)Without Go-devil

- 29.5 lbm (13.3 kg)

The line is cut 2” from the Rope Socket

FLOPETROL ROTARY WIRELINE CUTTERS - SPARE PARTS

Ref.

1*

2*

3*

4*

4*

4*

4*

4*

4*

4*

4*

4*

4*

5

5

6*

7*

8*

9*

10

11

12

13

14

15

Description

Fishing Head

Fixed Knife

Rotating Knife

Tapered Key for 0.072”







Tapered Key for 3/16”



Shear Pin 1/8” Brass

Shear Pin 3/16 Brass

Parallel Key

Long Sinker Bar

Plug

Hammer

Wireline Guide

Hammer Retainer

Short Sinker Bar

Extension Piece

Screw HC M5 x 0.8” - 10 (Quantity 4)

Screw HC M8 x 125” - 12 (Quantity 4)

Slickline 1 7/8”M-802721

M-802710

M-802716

M-802712

-

-

M-819278

M-812278

M-819277

M-819277

M-873365

M-802711

M-802801

M-802802

-

G-823556

M-802717

M-802719

M-802718

M-802715

M-800832

M-802714

M-802720

M-802713

-

M-824867

* Recommended spare parts (See diagram overleaf)Special tapered keys available on request.

Slickline 1 1/2”M-802709

M-802700

M-802699

M-802704

M-802804

M-802705

M-802805

M-812423

M-813070

M-813980

-

-

-

-

G-823998

-

M-802702

M-802708

M-802698

M-802701

M-801121

M-802706

M-802707

M-802703

G-820401

-



Flopetrol

Wireline O





Interface Version Standard Version

Slickline Model:

Documents

Rotary Cutters