# US 2013/0153227 A1 · Slickline or Wireline Run Hydraulic Motor Driven Mill

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- Number: US 2013/0153227 A1
- Document ID: US20130153227A1
- Status: Published application
- Kind: A1
- Application number: 13/587,634
- Filed: 2012-08-16
- Published: 2013-06-20
- Earliest claimed: 2010-06-07
- Assignees: Baker Hughes Incorporated
- Inventors: Mary L. Laird; Robbie B. Colbert; David W. Coleman
- Web page: https://patentgrep.com/patent/US20130153227A1

## CPC

- E21B 29/002: {Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe}
- E21B 29/005: {with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window}
- E21B 31/00: Fishing for or freeing objects in boreholes or wells
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## Abstract

A tool is run in with a bottom hole assembly that includes a seal and support within the tubing where a fish is to be milled. A ported sub allows pressurized fluid pumped from the surface to enter the bottom hole assembly above the sealed support location and to be directed to set an anchor and to a fluid driven motor such as a progressive cavity motor that is in turn connected milling tool at the rotor of the progressive cavity motor. The fluid exiting the stator goes through a debris removal device and can return to the surface through an annulus around the production tubing. A telescoping joint allows the mill to axially progress with a force applied to the fish generated by a tractor or a stack of Belleville washers.

## Claims

### Claim 1

A method of operating a tool in a borehole leading to a subterranean location, comprising:
delivering the tool to the subterranean location at least in part on a cable;
pumping fluid into the borehole to pressurize at least a portion of the borehole;
using said pressure to operate said tool;
moving said tool axially while using said pressure to operate said tool.

### Claim 2 (depends on 1)

The method of claim 1, comprising:
including a telescoping joint in a bottom hole assembly that includes said tool for said moving said tool axially.

### Claim 3 (depends on 2)

The method of claim 2, comprising:
biasing against said tool when said tool is operated.

### Claim 4 (depends on 2)

The method of claim 2, comprising:
extending said telescoping joint when said tool is operated.

### Claim 5 (depends on 4)

The method of claim 4, comprising:
using at least one spring for said biasing.

### Claim 6 (depends on 5)

The method of claim 5, comprising:
energizing said spring with pressure delivering said pumped fluid.

### Claim 7 (depends on 6)

The method of claim 6, comprising:
using a Belleville washer stack for said biasing.

### Claim 8 (depends on 2)

The method of claim 2, comprising:
associating a tractor with said telescoping joint to axially advance the tool when operating.

### Claim 9 (depends on 1)

The method of claim 1, comprising:
using a mill as said tool for release of a fish at the subterranean location.

### Claim 10 (depends on 9)

The method of claim 9, comprising:
allowing the fish to drop in the borehole after release or grasping said fish for retrieval from the borehole after the fish is released.

### Claim 11 (depends on 9)

The method of claim 9, comprising:
using a washover mill for said tool;
capturing generated debris using the fluid pumped into the borehole through a debris removal tool mounted in a bottom hole assembly with said mill.

### Claim 12 (depends on 9)

The method of claim 9, comprising:
vibrating said mill using the fluid pumped into the borehole through a vibration tool mounted in a bottom hole assembly with said mill while in contact with the fish.

### Claim 13 (depends on 9)

The method of claim 9, comprising:
driving a motor operably connected to said mill with said pumping.

### Claim 14 (depends on 13)

The method of claim 13, comprising:
diverting said pumped fluid to said motor.

### Claim 15 (depends on 14)

The method of claim 14, comprising:
using a progressing cavity device as said motor.

### Claim 16 (depends on 14)

The method of claim 14, comprising:
directing fluid exhausted from said motor to a debris removal tool or a vibrator.

### Claim 17 (depends on 16)

The method of claim 16, comprising:
flowing said exhausted fluid through an annular space defined between production tubing and a surrounding tubular.

### Claim 18 (depends on 14)

The method of claim 14, comprising:
accomplishing said diverting with an exterior seal on said assembly.

### Claim 20 (depends on 19)

The method of claim 19, comprising:
actuating said seal to seal a portion of the borehole.

### Claim 21 (depends on 18)

The method of claim 18, comprising:
providing a seal bore a tubular string in which said fish is located; and
inserting said seal into said seal bore to accomplish said diverting.

### Claim 22 (depends on 18)

The method of claim 18, comprising:
providing a ported sub adjacent said seal; and
directing flow through said ported sub and into said motor.

### Claim 23 (depends on 18)

The method of claim 18, comprising:
providing a hydraulically actuated anchor in said assembly.

### Claim 24 (depends on 23)

The method of claim 23, comprising:
locating said anchor between said seal and said motor;
using said diverted fluid to actuate both said anchor and said motor.

### Claim 25 (depends on 1)

The method of claim 1, comprising:
using a slickline or wireline as said cable.