在蒸汽辅助重力泄油（SAGD）项目的后期阶段，来自含水层连通性“窃水带”的不可凝结气（NCG）和水的突破可能导致部分沥青层未被开采。本研究结合实验室测试和油藏模拟，评估了自主流入控制阀（AICV）在应对SAGD后期生产挑战方面的有效性。结果表明，AICV具有缓解生产问题、优化流体调节和延长SAGD井生产寿命的潜力。
2012年，AICV（自适应感应控制阀）问世，其特点是具有自适应调节的流通面积，能够同时响应粘度和密度的变化。当流体中仅含有100%的水或气体时，AICV会自动关闭，从而实现高效的储层排空。
During late-life phases of steam-assisted gravity drainage (SAGD) projects, noncondensable gas (NCG) and water breakthrough from thief zones of aquifer connectivity can leave pockets of bitumen untouched. This study integrates laboratory testing with reservoir simulation to evaluate the effectiveness of autonomous inflow control valves (AICVs) in managing late-life SAGD production challenges. The results highlight the potential of AICVs to mitigate production issues, optimize fluid regulation, and extend the productive life of SAGD wells.
In 2012, the AICV was introduced, featuring a self-adjusting flow area that responds to both viscosity and density. The AICV shuts off automatically in the presence of 100% water or gas, enabling efficient reservoir drainage.
