| dc.contributor.committeeMember |
Sharma , Mukul M . |
|
| dc.contributor.committeeMember |
Mohanty , Kishore K . |
|
| dc.creator |
Hwang , Jongsoo |
|
| dc.date.accessioned |
2011 -07 -12T16 :32 :03Z |
|
| dc.date.accessioned |
2011 -08 -17T14 :38 :14Z |
|
| dc.date.available |
2011 -07 -12T16 :32 :03Z |
|
| dc.date.available |
2011 -08 -17T14 :38 :14Z |
|
| dc.date.created |
2011 -05 |
|
| dc.date.issued |
2011 -07 -12 |
|
| dc.date.submitted |
May 2011 |
|
| dc.identifier.uri |
http : / /hdl .handle .net /2152 /ETD -UT -2011 -05 -3558 |
|
| dc.description.abstract |
In gas -condensate reservoirs , gas productivity declines due to the increasing accumulation of liquids in the near wellbore region as the bottom -hole pressure declines below the dew point pressure . This phenomenon occurs even in reservoirs containing lean gas -condensate fluid . Various methods were addressed to remediate the productivity decline , for example , fracturing , gas injection , solvent injection and chemical treatment . Among them , gas injection techniques have been used as options to prevent retrograde condensation by vaporizing condensate and /or by enhancing condensate recovery in gas -condensate reservoirs . It is of utmost importance that the behavior of liquid accumulation near the wellbore should be described properly as that provides a better understanding of the productivity decline due to the originated from impaired relative mobility of gas .
In this research , several gas injection techniques were assessed by using compositional simulators . The feasibility of different methods such as periodic hot gas injection and gas reinjection using horizontal wells were assessed using different reservoir fluid and injection conditions . It is shown that both the temperature and composition of the injection fluids play a key role in the remediation of productivity and condensate recovery . The combined effect of these parameters were investigated and the resulting impact on gas and condensate production was calculated by numerical simulations in this study . Design parameters pertaining to field development and operations including well configuration and injection /production scheme were also investigated in this study along with the above parameters .
Based on the results , guidelines on design issues relating gas injection parameters were suggested . The various simulation cases with different parameters helped with gaining insight into the strategy of gas injection techniques to remediate the gas productivity and condensate recovery . |
|
| dc.format.mimetype |
application /pdf |
|
| dc.language.iso |
eng |
|
| dc.subject |
Cyclic gas injection |
|
| dc.subject |
Gas condensate |
|
| dc.subject |
Gas condensate reservoirs |
|
| dc.subject |
Liquid blockage |
|
| dc.subject |
Field scale gas recycling |
|
| dc.subject |
Horizontal wells |
|
| dc.title |
Gas injection techniques for condensate recovery and remediation of liquid banking in gas -condensate reservoirs |
|
| dc.description.department |
Petroleum and Geosystems Engineering |
|
| dc.type.genre |
thesis |
* |
| dc.type.material |
text |
* |
| thesis.degree.name |
Master of Science in Engineering |
|
| thesis.degree.level |
Masters |
|
| thesis.degree.discipline |
Petroleum Engineering |
|
| thesis.degree.grantor |
University of Texas at Austin |
|
| thesis.degree.department |
Petroleum and Geosystems Engineering |
|
| dc.date.updated |
2011 -07 -12T16 :32 :15Z |
|
| dc.identifier.slug |
2152 /ETD -UT -2011 -05 -3558 |
|