System to inject steam and product oil from the same wellbore through downhole valve switching. Third quarterly report
The detailed design of a sliding sleeve valve operated by wireline has been completed. This Downhole Valve is obtained by modifications of two 2 7/8 in. commercial wireline-retrievable sleeve assemblies,which will be used to connect one of the upper branches of the patented Dual Whipstock to the 2 3/8 in. steam tubing,through a thermal expansion joint. Detailed engineering drawings and materials specifications have been completed. The design of the 30 ft-long joint comprising an H joint at the top a dual whipstock at the bottom and flow control devices for up to three drainholes equipped with 1.75 in. liners has been completed for a 7 in. cased well. This combination may be used in multi-layered reservoirs as well as in single layered reservoirs. It is also compatible with rod pump locations either above the kick-off pointsor near the base of the curved part of the drainhole liners. This design provides sufficient flexibility for most potential applications in the California market.
- Research Organization:
- S-Cal Research Corp., San Rafael, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG01-92CE15553
- OSTI ID:
- 10159422
- Report Number(s):
- DOE/CE/15553--T3; ON: DE93015355
- Country of Publication:
- United States
- Language:
- English
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