Drilling in brittle crystalline rocks is often accompanied by a fluid loss through the finite number of the major fractures intercepting the borehole. These fractures affect the flow regime and temperature distributions in the borehole and rock formation. In this study, the problem of borehole temperature variation during drilling of the fractured rock is analyzed analytically by applying the approximate generalized integral-balance method. The model accounts for different flow regimes in the borehole, for different drilling velocities, for different locations of the major fractures intersecting the borehole, and for the thermal history of the borehole exploitation, which may include a finite number of circulation and shut-in periods. Norma...
A wellbore or borehole is a hole drilled in the ground to extract or explore the earth's natural res...
Historically, the formulation of the wellbore temperature profiles during drilling, circulating, and...
The process of borehole grouting in the regions of permafrost is more complicated than in normal cli...
Drilling in brittle crystalline rocks is often accompanied by a fluid loss through the finite number...
The problem of formation temperature stabilization during the shut-in period is solved analytically ...
Assessment of the heat either delivered from high temperature rocks to the borehole or transmitted t...
The temperature field in the formation disturbed by the heat flow from the borehole is modeled by th...
Accurate characterization of heat transfer in a wellbore during drilling, which includes fluid circu...
Summary. As an alternative to finite element or finite difference modelling, analytical solutions ar...
The constant undisturbed formation temperature profile controlling heat transfer into the wellbore a...
Program year: 1978/1979Digitized from print original stored in HDRDrilling technology is limited to ...
When the well-leakage or the well-kick occurs during drilling geothermal wells, the borehole tempera...
A drilling operation leads to thermal disturbances in the near-wellbore stress, which is an importan...
A fully-coupled model of geothermal bore fields is presented, taking into account the axial variatio...
Commercial exploitation of geothermal resources requires the disposal of large volumes of cooled bri...
A wellbore or borehole is a hole drilled in the ground to extract or explore the earth's natural res...
Historically, the formulation of the wellbore temperature profiles during drilling, circulating, and...
The process of borehole grouting in the regions of permafrost is more complicated than in normal cli...
Drilling in brittle crystalline rocks is often accompanied by a fluid loss through the finite number...
The problem of formation temperature stabilization during the shut-in period is solved analytically ...
Assessment of the heat either delivered from high temperature rocks to the borehole or transmitted t...
The temperature field in the formation disturbed by the heat flow from the borehole is modeled by th...
Accurate characterization of heat transfer in a wellbore during drilling, which includes fluid circu...
Summary. As an alternative to finite element or finite difference modelling, analytical solutions ar...
The constant undisturbed formation temperature profile controlling heat transfer into the wellbore a...
Program year: 1978/1979Digitized from print original stored in HDRDrilling technology is limited to ...
When the well-leakage or the well-kick occurs during drilling geothermal wells, the borehole tempera...
A drilling operation leads to thermal disturbances in the near-wellbore stress, which is an importan...
A fully-coupled model of geothermal bore fields is presented, taking into account the axial variatio...
Commercial exploitation of geothermal resources requires the disposal of large volumes of cooled bri...
A wellbore or borehole is a hole drilled in the ground to extract or explore the earth's natural res...
Historically, the formulation of the wellbore temperature profiles during drilling, circulating, and...
The process of borehole grouting in the regions of permafrost is more complicated than in normal cli...