US 12,404,732 B2
Trapdoor-style drilling mud screen system and methods thereof
Charles G. Kibbe, New Iberia, LA (US); and Ross J. Robin, New Iberia, LA (US)
Assigned to Black Diamond Oilfield Rentals LLC, Houston, TX (US)
Filed by Black Diamond Oilfield Rentals LLC, Houston, TX (US)
Filed on Nov. 9, 2022, as Appl. No. 17/984,193.
Application 17/984,193 is a continuation in part of application No. 17/126,415, filed on Dec. 18, 2020, granted, now 11,802,453.
Application 17/126,415 is a continuation in part of application No. 15/959,070, filed on Apr. 20, 2018, granted, now 11,028,656.
Claims priority of provisional application 62/598,521, filed on Dec. 14, 2017.
Claims priority of provisional application 62/491,700, filed on Apr. 28, 2017.
Prior Publication US 2023/0063617 A1, Mar. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 21/06 (2006.01); E21B 19/16 (2006.01); E21B 21/08 (2006.01); E21B 21/10 (2006.01)
CPC E21B 21/065 (2013.01) [E21B 19/16 (2013.01); E21B 21/08 (2013.01); E21B 21/106 (2013.01)] 57 Claims
OG exemplary drawing
 
1. A trapdoor-style drilling mud screen system, comprising:
(a) a first body having a first portion, a second portion and a third portion;
(b) a first drilling mud inlet at a first end of the first portion of the first body;
(c) a first drilling mud outlet at a second end of the third portion of the first body;
(d) a rotating trapdoor subassembly, wherein the rotating trapdoor subassembly is disposed within the second portion of the first body, wherein the first portion of the first body is fluidly connected to a first end of the rotating subassembly, and wherein a second end of the rotating subassembly is fluidly connected to the third portion of the first body;
(e) a pivot subassembly, wherein the pivot subassembly is disposed through the rotating trapdoor subassembly and through the second portion of the first body; and
(f) a drilling mud screen, wherein the drilling mud screen is disposed within the rotating trapdoor subassembly between the first drilling mud inlet and the first drilling mud outlet.