| 摘要 |
<p>The invention provides for injecting of high-pressare miscible natural gas directly into a newly opened or previously produced liquid hydrocarbon reservoir (LH) to saturate liquid hydrocarbons with solution gas to improve their mobility to flow toward and into producing wells. Concurrent injection of gas, miscible or otherwise, into hydrocarbon zone's gas cap (GC) supplies additional pressuring effects to aid there-saturation process. DownLole floa t operated injectors (DOLI) are improved to operate at high pressare maintaine d within the wellbore to assure liquid hydrocarbon flow completely out of the formation. The improved injector system then senses the difference between liquid and gas and closes its valve to retain the gas within the wellbore an d hydrocarbon formation. Any excessive gas pressure is relieved into the reservoir's gas cap for its continued benefits. All liquid-producing systems utilize an isxtended-float-length injector to permit the injeetor's float to open at high differential pressure created by maintaining the wellbore at pressare above gas into solution liquid saturation levels.</p> |
