Tubular cutting tool

1. A method of cutting a tubular, comprising:

providing a rotatable cutting tool in the tubular, the cutting tool having a blade body, the blade body including:

a protrusion with a cutting structure and an initial engagement point disposed thereon; and

a stop;

extending the blade body relative to the cutting tool;

rotating the cutting tool relative to the tubular;

contacting the initial engagement point on the protrusion with the tubular, thereby guiding the cutting structure into contact with the tubular;

cutting the tubular using the blade body; and

limiting extension of the blade body by engaging the stop with the tubular.

2. The method of claim 1 , wherein an actuation assembly acts to extend the blade body relative to the cutting tool.

3. The method of claim 2 , wherein the actuation assembly is hydraulic, the method further comprising limiting extension of the blade body regardless of a fluid pressure in the housing of the cutting tool.

4. The method of claim 1 , further including at least one of:

stabilizing the cutting tool by engaging the stop with the tubular,

laterally moving the cutting tool by engaging the stop with the tubular, and

centralizing the cutting tool by engaging the stop with the tubular.

5. The method of claim 1 , wherein the extending the blade body relative to the cutting tool happens while at least one of:

the rotating the cutting tool relative to the tubular,

the guiding the cutting structure into contact with the tubular,

a moving the cutting structure upward within the tubular, and

a pivoting the blade about a pivot point.

6. The method of claim 1 , wherein the initial engagement point on the protrusion comprises a wearable member.

7. The method of claim 6 , wherein rotating the cutting tool includes deforming the wearable member.

8. The method of claim 6 , wherein guiding the cutting structure into contact with the tubular includes decreasing a thickness of the wearable member.

9. The method of claim 1 , wherein

the cutting the tubular using the blade body comprises a full-thickness cut, and

the limiting extension of the blade body follows the full-thickness cut.

10. The method of claim 1 , further comprising:

providing a second tubular surrounding the tubular; and

after cutting through the tubular using the blade body, avoiding damaging the second tubular with the cutting tool.

11. The method of claim 1 , wherein the cutting tool further has a plurality of blade bodies extendable relative to the cutting tool.

12. The method of claim 1 , wherein a length of the cutting structure is at least as long as a thickness of the tubular at a proximity of the cutting.

13. The method of claim 12 , wherein limiting the sweep includes selecting an angle between the cutting structure and a stop of the blade.

14. The method of claim 1 , further comprising avoiding damaging a second tubular surrounding the tubular after cutting through the tubular using the cutting structure.

15. The method of claim 1 , wherein the cutting the tubular comprises:

making a partial-thickness cut; and

cutting a profile into the tubular.