CAJ | 학술논문

针对双河油田因水锁造成的减产问题，开展了水锁减产的机理研究。应用热力学和动力学理论分析了引起水锁效应的原因；从渗透率、油藏压力、岩石矿物性质、驱替压力以及外来流体粘度等方面分析了影响水锁效应的内在和外在因素。岩心水锁伤害实验结果表明：渗透率越低，油藏压力和驱替压力越小，产生的水锁伤害越严重。提出了预防和解除水锁伤害的方法，现场试验8井次，有效率100％，取得了显著效果。
침대쌍하유전인수쇄조성적감산문제，개전료수쇄감산적궤리연구。응용열역학화동역학이론분석료인기수쇄효응적원인；종삼투솔、유장압력、암석광물성질、구체압력이급외래류체점도등방면분석료영향수쇄효응적내재화외재인소。암심수쇄상해실험결과표명：삼투솔월저，유장압력화구체압력월소，산생적수쇄상해월엄중。제출료예방화해제수쇄상해적방법，현장시험8정차，유효솔100％，취득료현저효과。
In the case of the decline of production caused by water blockage in Shuanghe Oilfield, the mechanism research was carried out. The cause of water - lock effect was analyzed by the theory of thermodynamics and dynamics. The internal and external factors of the water - blocking effect were analyzed from permeability, reservoir pressure, lithological characters, displacement pressure and external fluid viscosity. The experimental results of water locking damage indicated that the lower the permeability is, the smaller the reservoir pressure and the displacement pressure are, and the more seri- ous the water lock damage will be. The method for water locking damage prevention and removal was put forward and tested in 8 wells. The effective rate was 100% , and significant result has been achieved.