scope:

Application of the code

The good practices specified in this code may be applied to a range of circumstances. However, it is applicable specifically to geothermal wells that

(a) Reach, or may reasonably be expected to reach, a depth exceeding 250 m and contain predominantly water or steam at temperatures exceeding the boiling point of water for the mean ambient conditions at the surface of the well site; or

(b) Reach, or may reasonably be expected to reach, a depth of between 150 m and 250 m, and that:

(i) Contain steam or hot water that may reasonably be expected to exert a shutin pressure at the wellhead of 0.5 MPa or greater, or

(ii) Have expected or actual downhole temperatures within 20°C of the boilingpoint- for-depth (BPD) temperature as measured from the local water level.