发明名称 |
Hydrate control in a cyclic solvent-dominated hydrocarbon recovery process |
摘要 |
The present invention relates generally to in situ hydrate control during hydrocarbon production when applying a recovery method utilizing cyclic injection of light hydrocarbon solvents. Hydrate formation is limited by creating an energy reserve within a hydrocarbon reservoir adjacent to the wellbore. A heated solvent is injected during an injection phase of a cyclic solvent dominated recovery process to form a heated region adjacent to the wellbore at the end of an injection cycle. The energy reserve is used to act against the evaporative cooling effect caused by subsequent production and associated depressurization to maintain reservoir conditions outside of hydrate formation conditions. In situ conditions are estimated and injected energy amounts are controlled. |
申请公布号 |
US8602098(B2) |
申请公布日期 |
2013.12.10 |
申请号 |
US20110987720 |
申请日期 |
2011.01.10 |
申请人 |
KWAN MORI Y.;KHALEDI RAHMAN;KAMINSKY ROBERT D.;BECKMAN MARK S.;WATTENBARGER ROBERT CHICK;LEBEL J. PIERRE;EXXONMOBIL UPSTREAM RESEARCH COMPANY |
发明人 |
KWAN MORI Y.;KHALEDI RAHMAN;KAMINSKY ROBERT D.;BECKMAN MARK S.;WATTENBARGER ROBERT CHICK;LEBEL J. PIERRE |
分类号 |
E21B43/22;E21B43/24 |
主分类号 |
E21B43/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|