Casing and tubing design Sample Clauses

Casing and tubing design. The design of CO2 injectors does not require fundamental changes compared to regular oil and gas xxxxx, since dry CO2 is expected to be injected. (Xxxxxxx, 2010). However, in a CO2 injection well, the principal well design considerations should include pressure, corrosion- resistant materials and production and injection rates (IPCC, 2005). For safe CO2 injection the injectors should comprise of at least two casing strings (Figure 11). The advantage of the 2 casing string option is that the hydrocarbon zone can be separated from the CO2 injection zone. Any operational problems can be dealt with separately. With this design the cementing of the casing can be managed to provide the optimum solution for achieving good cementing across the hydrocarbon zone. This might require lightweight cements and might be different from those which should be used over the CO2 injection zone. Also, the longer the zone which is cemented in a single operation, the more contamination occurs at the interface between the cement and the mud. Carrying out the cementing operations separately gives the best chance of good cementing across the important intervals.
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Related to Casing and tubing design

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  • Cutting and Patching The Contractor shall be responsible for cutting, fitting or patching required to complete the Work or to make its parts fit together properly.

  • Cutting, Patching, and Fitting The Contractor shall do all cutting, patching, and fitting of the Work that may be required to make its several parts come together properly and fit.

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