System to inject steam and produce oil from the same wellbore through downhole valve switching. Fourth quarterly report
A Major Oil Operator indicated that they are considering drilling and completion of two horizontal wells to reach the same reservoir area in the Midway-Sunset field. This gave us an opportunity to show them the potential benefits of using a single cased well equipped with two laterals,instead of two conventional horizontal wells. This new case will require drilling a new well. Because of the relatively higher expected fluid production rate, larger-diameter latcrals will be needed. Correspondingly,this calls for a larger casing diameter. Two basic designs have been produced,for two different casing diameters, respectively 8 5/8 inch and 10 3/4 inch. A major difficulty in this case is the very low reservoir pressure ( 50 to 75 psig) which led us to consider two different artificial lift systems.
- 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:
- 10177680
- Report Number(s):
- DOE/CE/15553--T4; ON: DE93040365
- Country of Publication:
- United States
- Language:
- English
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