水力脉冲振动技术提高固井质量的研究与应用

河南双河油田长期以来经过分层布井、三次加密钻井、高压注水和大排量强抽，形成了地下高压层、常压层、低压层共存的多压力体系，层间压差大，产层水淹严重等情况，由此，给固井质量带来严重影响，固井质量一次合格率逐年下降。通过调研得知在建筑行业的混凝土浇注过程中，采用振动脉冲技术可清除蜂窝孔洞而使水泥石胶结致密，从而提高混凝土与钢筋间的胶结强度，依据这种原理，在固井施工过程中采用振动技术，水力脉冲振动器产生的振动波，能有效地改善水泥浆与地层、套管的胶结质量，可以提高环空封固段内水泥石胶结质量。

Research and Application of Water Power Vibratory Impulse Technique in Improving Cementing Quality

Through separate well spacing, triple infill drilling, high pressure water injection and great delivery powerful swabbing, Henan Shuanghe oilfield had formed multiple pressure system that made up of high pressure layer, normal pressure layer and low pressure layer coexisting, and have big pressure difference, serious water flooding in production layer. Therefore, it has brought serious impact on cementing quality, the qualification rate of cementing quality is dropping year by year. Through studying, adopting the vibratory impulse technology in the process of concrete placement in construction profession can clear the alveoli cavern, which made the cement bind densely, and improved the cementing strength between the concrete and the reinforcing steel. Based on this theory, if we adopt the vibrotechnique in the cementing, the vibration wave caused by hydraulic power impulse vibrator can improve the cementing quality among cement slurry, formation and casing, then improve the cementing quality of cement in the annular sealed section.