US 11,885,187 B2
Control line activated tubing disconnect latch system
Thomas James Wakerley, Yuzhno-Sakhalinsk (RU); Krishna Trisal, Yuzhno-Sakhalinsk (RU); Farid Afandiyev, Yuzhno-Sakhalinsk (RU); and Ilyana Sergeevna Afanasyeva, Yuzhno-Sakhalinsk (RU)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 17/756,946
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Dec. 16, 2019, PCT No. PCT/RU2019/000953
§ 371(c)(1), (2) Date Jun. 6, 2022,
PCT Pub. No. WO2021/125995, PCT Pub. Date Jun. 24, 2021.
Prior Publication US 2023/0003093 A1, Jan. 5, 2023
Int. Cl. E21B 23/04 (2006.01); E21B 17/06 (2006.01)
CPC E21B 23/042 (2020.05) [E21B 17/06 (2013.01); E21B 23/0412 (2020.05)] 15 Claims
OG exemplary drawing
 
1. A method for disconnecting production tubing at a polished bore receptacle, comprising:
placing the polished bore receptacle within a wellbore, the polished bore receptacle having a first section of tubing, a second section of tubing, and a tubing disconnect latch system connecting the first section of tubing and the second section of tubing;
one of pressuring a control line with a fluid, the control line connected to a piston configured to travel from an unexpanded position to an expanded position and sending an electrical signal via an electrical control line connected to the piston, the piston configured to travel from the unexpanded position to the expanded position;
expanding the piston from the unexpanded position to the expanded position within the polished bore receptacle through one of fluid pressure and an electrical actuator connected to the piston;
shearing a set of pins connecting a collet with one of the first section of tubing and the second section of tubing;
disconnecting the tubing disconnect latch system; and
separating the first section of tubing from the second section of tubing.