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随着油气田开发技术的进步,水平井开采技术日臻完善,并在底水油藏、高角度裂缝性油藏、薄油层油藏和低渗透油藏开发中广泛应用,取得了明显的效果。欢喜岭油田欢2-16-10断块E3S32是典型的底水油藏,针对区块构造落实程度低,开发调整效果较差,底水锥进严重,含水上升快的开发特征,研究了区块油藏地质特征和剩余油分布规律,挖潜技术以及水平井优化设计技术,提出了水平井技术在小构造、底水油藏挖潜中的应用,并现场实施1口水平井。投产后效果很好,初期产量达到120t,不含水,大幅度提高了断块的采油速度,取得了良好的经济效益。
With the development of oil and gas fields, the technology of horizontal well exploitation has been perfected and has been widely used in the development of bottom water reservoirs, high-angle fractured reservoirs, thin reservoirs and low-permeability reservoirs, and achieved remarkable results. The Huan 2-16-10 fault block Huan 2-16-10 fault block in Huanxiling Oilfield is a typical bottom water reservoir. In view of the development features of low tectonic implementation, poor development and adjustment effects, severe bottom water coning and rapid water cut, The geological characteristics of block reservoirs and the remaining oil distribution, potential tapping technology and horizontal well optimization design techniques, the application of horizontal well technology in tapping the potential of small structures and bottom water reservoirs is proposed and a horizontal well is implemented on site. After put into operation, the effect is very good, the initial output reached 120t, does not contain water, greatly improve the block oil recovery rate, and achieved good economic benefits.