Investigation of wellbore cooling by circulation and fluid penetration into the formation using a wellbore thermal simulator computer code
Conference
·
OSTI ID:5626495
The high temperatures of geothermal wells present severe problems for drilling, logging, and developing these reservoirs. Cooling the wellbore is perhaps the most common method to solve these problems. However, it is usually not clear what may be the most effective wellbore cooling mechanism for a given well. In this paper, wellbore cooling by the use of circulation or by fluid injection into the surrounding rock is investigated using a wellbore thermal simulator computer code. Short circulation times offer no prolonged cooling of fluid in the wellbore, but long circulation times (greater than ten or twenty days) greatly reduce the warming rate after shut-in. The dependence of the warming rate on the penetration distance of cooler temperatures into the rock formation (as by fluid injection) is investigated. Penetration distances of greater than 0.6 m appear to offer a substantial reduction in the warming rate. Several plots are shown which demonstrate these effects. 16 refs., 6 figs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5626495
- Report Number(s):
- SAND-85-0651C; CONF-850801-3; ON: DE85008465
- Country of Publication:
- United States
- Language:
- English
Similar Records
Investigation of wellbore cooling by circulation and fluid penetration into the formation using a wellbore thermal simulator computer code
An elastoplastic finite element approach for modeling horizontal wellbore stability considering the effect of fluid penetration
Interpretation of fracture height from temperature logs -- The Effect of wellbore/fracture separation
Conference
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:6051002
An elastoplastic finite element approach for modeling horizontal wellbore stability considering the effect of fluid penetration
Book
·
Mon Dec 31 23:00:00 EST 1990
·
OSTI ID:6248667
Interpretation of fracture height from temperature logs -- The Effect of wellbore/fracture separation
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:170090