US 12,331,613 B2
Composite downhole tools
Somen Kumar Bhudolia, Singapore (SG); Michael Linley Fripp, Singapore (SG); Sandeep Thatathil, Singapore (SG); and Arpana Singh, Singapore (SG)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Oct. 24, 2023, as Appl. No. 18/493,471.
Prior Publication US 2025/0129686 A1, Apr. 24, 2025
Int. Cl. E21B 33/12 (2006.01); B29C 70/32 (2006.01)
CPC E21B 33/1208 (2013.01) [B29C 70/32 (2013.01)] 20 Claims
OG exemplary drawing
 
15. A method of deploying a downhole tool into a borehole, comprising:
lowering the downhole tool into the borehole, the downhole tool comprising a composite of thermoplastic and fibers, wherein the fibers reinforce the thermoplastic, wherein the composite favors hoop strength over axial strength, wherein winding angles of the fibers in the composite give the composite as favoring the hoop strength over the axial strength, wherein the winding angles are greater in an outer radial portion of the composite than in an inner radial portion of the composite, wherein the composite comprises threads, and wherein axial stress experienced by the composite in the borehole is less than 10% of hoop stress experienced by the composite in the borehole; and
wherein the downhole tool is a packer having a mandrel comprising the composite or wherein the downhole tool is a pressure housing.