基于多段井模型的海上油田新型控水技术可行性研究

Feasibility of offshore AICD technology based on multi-segment well model

新型控装置(AICD)具有对水相的智能识别和抑制功能。通过建立海上某高渗底水砂岩油田多段井模型,对AICD技术进行了数值模拟研究。研究表明,采用AICD技术能抑制底水锥进速度、扩大底水波及面积、降低油井含水率和提高油井产量;在油田综合含水达到80%前实施AICD技术增油效果最好,而在目标油田综合含水92%的情况下进行AICD完井仍能有效增加油井产量。AICD技术为海上油田控水技术的发展提供了新的思路。

A new water control technology,autonomous inflow control device(AICD),has the function of intelligent recognition and suppression of aqueous phase.Through the establishment of a multi-segment well model of an offshore highpermeability sandstone reservoir with bottom water,the accurate numerical simulation study of the AICD technology was carried out.The results indicate AICD can inhibit the bottom water coning in speed and expand the bottom swept area,reduce the water cut and improve the oil production.The study shows the AICD effect is the best before water cut reaches 80%,while AICD completion can also effectively increase the production when the comprehensive water cut reaches 92%in the target oil field.AICD technology provides a new thinking way for the development of water control technology in offshore oil field.