Geomechanical analyses to investigate wellbore/mine interactions in the Potash Enclave of Southeastern New Mexico.

Ehgartner, Brian L. ; Bean, James E. (Sandia Staffing Alliance, LLC, Albuquerque, NM) ; Arguello, Jose Guadalupe, Jr. ; Stone, Charles Michael

Sandia National Laboratories

关键词: Underground Mining;    Boreholes;    Geologic Models;    58 Geosciences;    New Mexico;   

DOI  :  10.2172/993929
RP-ID  :  SAND2009-4795
RP-ID  :  AC04-94AL85000
RP-ID  :  993929

美国|英语

来源: UNT Digital Library

【 摘 要 】

Geomechanical analyses have been performed to investigate potential mine interactions with wellbores that could occur in the Potash Enclave of Southeastern New Mexico. Two basic models were used in the study; (1) a global model that simulates the mechanics associated with mining and subsidence and (2) a wellbore model that examines the resulting interaction impacts on the wellbore casing. The first model is a 2D approximation of a potash mine using a plane strain idealization for mine depths of 304.8 m (1000 ft) and 609.6 m (2000 ft). A 3D wellbore model then considers the impact of bedding plane slippage across single and double cased wells cemented through the Salado formation. The wellbore model establishes allowable slippage to prevent casing yield.