| Title | Downhole Cement Test in a Very Hot Hole |
|---|---|
| Authors | Pettitt, Roland A.; Cocks, George G.; Dreesen, Donald S.; Sims, James R.; Nicholson, Robert W.; Boevers, Billy G. |
| Year | 1982 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | Hot Dry Rock; USA; Temperature; Fractures; Casing; Silica; Joints; Injection Well; Borehole; Cementing; Test Results; Downhole Cement Test |
| Abstract | Completion of the commercial sized Hot Dry Rock Geothermal Energy Project requires that hydraulic fractures be created between two inclined wellbores at a depth of about 4 km (15,000ft). Isolation of a section of the open wellbore is necessary for pressurization to achieve the fracture connections. A cemented in liner/PBR assembly is one of the methods used for zone isolation near the bottom of the injection well. A downhole, pumped cement test was first conducted at a wellbore temperature of 275°C (525°F) to determine if a suitable slurry could be designed, pumped, and later recovered to assure the success of the cemented in liner operation. |