US 12,326,203 B2
Downhole tool with crack compliant seal and mechanical strengthening feature at a joint thereof
Dara Saphira, Carrollton, TX (US); Alireza Yazdanshenas, Carrollton, TX (US); Stacey Blaine Donovan, Carrollton, TX (US); and David Joe Steele, Carrollton, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jul. 6, 2023, as Appl. No. 18/348,205.
Claims priority of provisional application 63/511,392, filed on Jun. 30, 2023.
Prior Publication US 2025/0003532 A1, Jan. 2, 2025
Int. Cl. F16L 13/02 (2006.01); E21B 17/043 (2006.01)
CPC F16L 13/02 (2013.01) [E21B 17/043 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A downhole tool, comprising:
a first member, the first member having a first member inside diameter (ID1), a first member outside diameter (OD1), a first member thickness (t1), and a first member hardness value (HV1);
a second member, the second member having a second member inside diameter (ID2), a second member outside diameter (OD2), a second member thickness (t2), and a second member hardness value (HV2), the first and second members positioned proximate one another forming an overlapping space therebetween;
a geometric mechanical strengthening feature located between the first member and the second member, the geometric mechanical strengthening feature configured to increase an engineering rating of the overlapping space; and
a crack compliant seal positioned at the overlapping space, the crack compliant seal having a compliant seal hardness value (HVcs) less than or equal to one or more of the first member hardness value (HV1) or second member hardness value (HV2), wherein the geometric mechanical strengthening feature is a collet feature in one of the first member or the second member forming an overlapping joint. and further wherein the collet feature includes a collet finger in one of the first member or the second member and a collet finger profile in an other of the second member or the first member, and further wherein the crack compliant material is axially located between the collet finger profile and a radial extending portion of the overlapping joint.