US 12,221,881 B2
Conveyance apparatus, systems, and methods
Julien Toniolo, Houston, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Appl. No. 17/629,478
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Jul. 23, 2020, PCT No. PCT/US2020/043246
§ 371(c)(1), (2) Date Jan. 24, 2022,
PCT Pub. No. WO2021/016443, PCT Pub. Date Jan. 28, 2021.
Claims priority of provisional application 62/878,166, filed on Jul. 24, 2019.
Prior Publication US 2022/0268151 A1, Aug. 25, 2022
Int. Cl. E21B 47/18 (2012.01); E21B 23/03 (2006.01); E21B 47/06 (2012.01); E21B 47/09 (2012.01); E21B 23/08 (2006.01)
CPC E21B 47/18 (2013.01) [E21B 23/03 (2013.01); E21B 47/06 (2013.01); E21B 47/09 (2013.01); E21B 23/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of conveying a tool string into a wellbore, wherein the method comprises:
placing an apparatus, with a seal module at a first end of the apparatus and the tool string attached to a second end of the apparatus, into a drill pipe in the wellbore;
pumping mud into the drill pipe to land the apparatus in a landing portion within the drill pipe, wherein in the landing portion an annulus is formed between an outer diameter of the seal module of the apparatus and an inner diameter of the landing portion of the drill pipe;
during pumping of mud into the drill pipe, opening a mud outlet of the apparatus between the seal module and the tool string, to allow the mud to flow through one or more mud lines of the apparatus at a first pressure; and
during pumping of the mud into the drill pipe, closing the mud outlet of the apparatus to prevent the mud from exiting the one or more mud lines via the mud outlet of the apparatus and to force the mud to flow through the annulus between the outer diameter of the seal module of the apparatus and the inner diameter of the landing portion of the drill pipe at a second pressure,
wherein the second pressure is higher than the first pressure, and
wherein the first pressure and the second pressure generate pressure pulses to provide data to equipment at a surface of the wellbore.