Wellbore strengthening material recovery

Patent metadata

Field	Value
Publication number	US-9752399-B2
Application number	US-201013201963-A
Country	US
Kind code	B2
Filing date	Mar 5, 2010
Priority date	Mar 6, 2009
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A wellbore strengthening material collection system including a vibratory separator having a top deck, a middle deck, and a bottom deck, and also including a collection trough coupled to at least one of the decks and configured to receive wellbore strengthening materials from the at least one of the decks. Additionally, a collection trough including a body having an inlet and an outlet, an angled surface disposed within the body and at least on extension surface extending form the body and configured to secure the collection trough to a vibratory separator.

First claim

What is claimed:

1. A system comprising:
a vibratory separator comprising:
a top deck;
a middle deck; and
a bottom deck; and

a collection trough coupled to at least one of the decks, wherein the collection trough comprises an inlet bounded by a first side, a second side and a back wall, and an angled lower surface traversing downwardly from the first side to the second side, the angled lower surface terminating at an outlet outside the vibratory separator, wherein the collection trough outlet extends outwardly away from at least one of the decks and terminates outside the vibratory separator.

2. The collection system of claim 1 , wherein the collection trough is removable.

3. The collection system of claim 1 , wherein the inlet is configured to receive wellbore strengthening materials from at least one of the decks; and
the angled lower surface is configured to direct the received wellbore strengthening materials out of the vibratory separator.

4. The collection system of claim 3 , wherein the outlet further directs the wellbore strengthening materials to an active drilling fluid system.

5. The collection system of claim 3 , wherein the collection trough further comprises:
at least two engagement surfaces configured to engage the at least one of the decks of the vibratory separator.

6. The collection system of claim 5 , wherein the vibratory separator further comprises:
a pressure actuation device configured to secure the engagement surfaces of the collection trough to at least one of the decks of the vibratory separator.

7. The collection system of claim 1 , further comprising:
a first screen disposed on the top deck;
a second screen disposed on the middle deck; and
a third screen disposed on the bottom deck.

8. The collection system of claim 7 , wherein the first screen comprises perforations having a larger diameter than the second screen.

9. The collection system of claim 8 , wherein the second screen comprises perforations having a larger diameter than the third screen.

10. The collection system of claim 1 , wherein the collection trough further comprises:
a diverter coupled to the vibratory separator, wherein the diverter directs the wellbore strengthening materials to an active drilling fluid system.

11. A system comprising:
a vibratory separator comprising a deck; and
a collection trough comprising:
an inlet disposed between a first side and a second side of the collection trough, the inlet traversing the width of the deck;
an outlet substantially parallel to the inlet, extending outwardly from the deck and terminating outside the vibratory separator proximate the second side;
an angled bottom surface traversing downwardly from the first side to the second side of the collection trough toward the outlet and terminating at the outlet; and
an engagement surface having at least one extension panel extending from a front of the collection trough, wherein the engagement surface secures the collection trough to a solids discharge end of a deck of the vibratory separator,
wherein the collection trough is configured to receive a flow of wellbore strengthening materials from the vibratory separator, such that the wellbore strengthening materials are removed and discharged from the vibratory separator by the collection trough.

12. The system of claim 11 , wherein the at least one extension panel is secured through pressure actuation.

13. The system of claim 11 , further comprising:
at least one handle disposed on the collection trough and configured to allow the collection trough to he removed from the vibratory separator.

14. The system of claim 11 , wherein the outlet is configured to direct the flow of wellbore strengthening materials from the collection trough to an active drilling fluid system.

15. The system of claim 11 , wherein the outlet is located in the second side of the collection trough.

16. The system of claim 11 , further comprising a retaining portion configured to prevent an overflow of collected material within the collection trough.

Assignees

• Timmerman Michael A
• Carr Brian S
• Marshall James A
• M-I L L C

Inventors

• Timmerman Michael A
• Carr Brian S
• Marshall James A

Classifications

• B07B13/16

  Feed or discharge arrangements · CPC title

• B07B2230/01

  Wet separation · CPC title

• E21B21/063 Primary

  by separating components · CPC title

• B07B2201/04

  Multiple deck screening devices comprising one or more superimposed screens · CPC title