System for setting a lower completion and cleaning a casing above the lower completion

Patent metadata

Field	Value
Publication number	US-11598181-B2
Application number	US-202117147802-A
Country	US
Kind code	B2
Filing date	Jan 13, 2021
Priority date	Jan 13, 2021
Publication date	Mar 7, 2023
Grant date	Mar 7, 2023

Abstract

A downhole system includes a lower completion having at least one tubular including a first end and a second end terminating at a shoe. The at least one tubular defining a flow path. A packer is arranged at the first end. A fluid loss control valve (FLCV) is arranged between the packer and the shoe. A screen system is arranged between the FLCV and the shoe. The screen system includes a screen and a non-mechanically operated flow control valve that selectively isolates the flow path from formation fluids passing through the screen. A wellbore clean out string is insertable into the lower completion. The wellbore clean out string includes a selectively activated casing cleaner and a setting tool. The selectively activated casing cleaner is spaced from the setting tool.

First claim

What is claimed is:

1. A method of setting a lower completion and cleaning a wellbore including a cased portion and an open hole portion in a single trip, the method comprising:
running the lower completion into the open hole portion of the wellbore to a selected setting depth on a wellbore setting and clean out string;
circulating fluids through a flow bore of the lower completion out through a terminal end to remove debris and condition the open hole portion;
preventing fluid from passing through screens on the lower completion with a non-mechanically operated valve;
setting a packer on the lower completion while connected with wellbore setting and clean out string;
releasing the wellbore setting and clean out string from the lower completion;
activating a casing cleaner on the wellbore setting and clean out string;
moving the wellbore setting and clean out string to clean the cased portion;
circulating fluids though the terminal end of the wellbore setting and clean out string to remove debris; and
closing a fluid loss control valve (FLCV) to isolate the lower completion from debris and prevent losses to formation.

2. The method of claim 1 , wherein activating the casing cleaner includes dropping a ball into the wellbore setting and clean out string.

3. The method of claim 1 , wherein activating of the casing cleaner occurs prior to setting the packer when the lower completion is spaced from the selected setting depth.

4. The method of claim 1 , where in the casing cleaner is one of a casing scraper, a casing brush, and a jetting sub.

5. The method of claim 1 , wherein the FLCV is closed immediately following starting cleanup operations to prevent losses and prevent debris from contaminating the lower completion.

6. The method of claim 1 , wherein circulation fluids through the terminal end is initiated after closing the FLCV.

7. The method of claim 1 , wherein the casing cleaner is activated prior to setting the packer to clean portions of the cased portion at the selected setting depth.

8. The method of claim 1 , wherein the FLCV comprises a formation isolation valve (FIV) that resists pressure in both directions.

9. The method of claim 1 , wherein the wellbore setting and clean out string contains at least one of a brush, a magnets, a filter subs, and a jetting tool to clean the wellbore above the lower completion.

10. A method of setting a lower completion and cleaning a wellbore including a cased portion and an open hole portion in a single trip, the method comprising:
running the lower completion into the wellbore to a selected setting depth on a wellbore setting and clean out string;
circulating fluids through a flow bore of the lower completion out through a terminal end to remove debris and condition the open hole portion;
preventing fluid from passing through screens on the lower completion with a non-mechanically operated valve;
setting a packer on the lower completion;
releasing the wellbore setting and clean out string from the lower completion;
activating a casing cleaner on the wellbore setting and clean out string prior to setting the packer when the lower completion is spaced from the selected setting depth;
moving the wellbore setting and clean out string to clean the cased portion;
circulating fluids though the terminal end of the wellbore setting and clean out string to remove debris; and
closing a fluid loss control valve (FLCV) to isolate the lower completion from debris and prevent losses to formation.

Assignees

• Adam Mark Kendall
• Andrew Colin Patrick
• Treadway Travis
• Croy Jonathan Nicholas
• Barron Michael
• Magnus Brian
• Baker Hughes Oilfield Operations Llc

Inventors

• Adam Mark Kendall
• Andrew Colin Patrick
• Treadway Travis
• Croy Jonathan Nicholas
• Barron Michael
• Magnus Brian

Classifications

• E21B34/063

  Valve or closure with destructible element, e.g. frangible disc (E21B34/103 takes precedence) · CPC title

• E21B43/10 Primary

  Setting of casings, screens, liners {or the like} in wells · CPC title

• E21B34/142

  unsupported or free-falling elements, e.g. balls, plugs, darts or pistons · CPC title

• E21B23/00

  Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (setting of casings, screens or liners E21B43/10) · CPC title

• E21B2200/04

  Ball valves · CPC title