Skip to main content

Science – Society – Technology

Geothermal Energy Cover Image

Table 4 Summary analysis of production casing and tieback casing load calculation for wells HCE9B and HCE28B

From: Casing failure identification of long-abandoned geothermal wells in Field Dieng, Indonesia

Well Production casing data Burst (MPa) Collapse (MPa) Tension (kN)
Casing grade/pounder Casing depth (m TVD/MD) Resultant (design factor) Burst ratinga Evaluation Resultant (design factor) Collapse ratinga Evaluation Resultant (design factor) Tension ratinga Evaluation
HCE9B 339.7 mm K-55
101.2 kg/m
Top 0 38.7 23.8 Failed 0 13.4 Accepted 3073 4755 Accepted
Bottom 1519/1613 23.8 18.1 Failed 45 10.2 Failed 0 3614 Accepted
HCE28B 339.7 mm K-55
101.2 kg/m
Top 0 40 23.8 Failed 0 13.4 Accepted 2930 4755 Accepted
Bottom 1504/1538 25.7 16.7 Failed 40 9.4 Failed 0 3337 Accepted
Tieback 273.1 mm L-80
82.3 kg/m
Top 0 40 44.5 Accepted 0 27.7 Accepted 2391 5676 Accepted
Bottom 1504/1538 25.7 31.2 Accepted 40 19.5 Failed 0 3983 Accepted
  1. aBurst, collapse, and tension rating were corrected based on temperature