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- W2897469739 abstract "Although EOR by steam injection is used primarily to recover Heavy Oil, the same methods are also applicable to some Light Oil reservoirs. A typical example is that of the Shannon reservoirs in the Teapot Dome field, WY, operated by the DOE, for the US Naval Petroleum Reserve No.3. To show that our technology is also applicable to steam injection in Light Oil reservoirs, a preliminary well design was prepared and submitted to Naval Petroleum Reserve No.3. The Upper and Lower Shannon sandstone reservoirs, of low permeability, in the Teapot Dome field are both highly faulted and fractured. This is a situation where horizontal drainholes, oriented in such a way that they would intersect many of the preexisting fractures and fault zones, would greatly increase the wells productivity, as compared to the current practice of using only vertical wells and hydro-fracturation. Proposed well design includes a single vertical casing, tied-in respectively to a liner-equipped horizontal drainhole drilled into the Lower Shannon and to a liner-equipped vertical hole drilled into the Upper Shannon. The two wells are operated in sequential ``huff and puff,`` using two parallel vertical tubings, respectively dedicated to steam injection and to conveying the produced fluids to the surface, using a single rod pump. Corresponding proposed Teapot Dome well configuration, added to those previously considered for various California Heavy Oil fields confirms the flexibility and adaptability of this technology to a large variety of field conditions, exhibiting wide range of oil and reservoir characteristics. The experiments made at UC Berkeley to verify the operability of sliding sleeve type three-way downhole valves are presented and reviewed. This concludes tasks No.1 to No.4 of this Contract. Calculations of steam tubing heat losses for various well configurations and types of tubing insulations have been made under Task No.5. The results are presented in graphical form and analyzed." @default.
- W2897469739 created "2018-10-26" @default.
- W2897469739 creator A5021125844 @default.
- W2897469739 date "1993-12-01" @default.
- W2897469739 modified "2023-09-26" @default.
- W2897469739 title "System to inject steam and produce oil from the same wellbore through downhole valves switching. Fifth quarterly report" @default.
- W2897469739 doi "https://doi.org/10.2172/10107753" @default.
- W2897469739 hasPublicationYear "1993" @default.
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