Stamp Duties Act, 1968 (Act 77 of 1968)
R 385
Mineral and Petroleum Resources Development Act, 2002 (Act No. 28 of 2002)RegulationsAmendment Regulations to the Mineral and Petroleum Resources Development Regulations, 2020Chapter 8 : Well Design and Construction101. Centralisers |
| (1) | Casing must be centralised in each segment of the wellbore to provide sufficient casing standoff and foster effective circulation of cement to isolate critical zones including aquifers, flow- zones, voids, lost circulation zones and hydrocarbon production zones. |
| (2) | Surface casing must be centralised at the shoe, above and below a stage collar or diverting tool, and through fresh water zones. |
| (3) | In non-deviated holes, a pipe centraliser must be placed every fourth joint from the cellar cement shoe to the ground surface or to the bottom of the cellar. |
| (4) | Centralisers must be in accordance with the standards of— |
| (a) | API "10 D, Specification for Bow-Spring Casing Centralizers and all rigid centralizers "; |
| (b) | API "10 TR 4 Considerations Regarding Selection of Centralizers for Primary Cementing Operations "; and |
| (c) | API RP "10D -2, Recommended Practice for Centralizer Placement and Stop Collar Testing ". |
| (5) | The designated agency may require additional centralisation where necessary in order to ensure the adequacy of the integrity of the well design. |
[Regulation 101 inserted by section 2 of Notice No. R. 466 dated 3 June 2015]
