en sagd upper horizontal wellbore (n)
― IsA ⟶
Weight: 1.0
en horizontal wellbore (n) Source: OpenCyc 2012
en sagd lower horizontal wellbore (n)
― IsA ⟶
Weight: 1.0
en horizontal wellbore (n) Source: OpenCyc 2012
en horizontal wellbore (n)
― IsA ⟶
Weight: 1.0
en non vertical wellbore (n) Source: OpenCyc 2012