SEPARATE LAYER PRESSURE TESTING TECHNIQUES DATA APPLICATION IN DAQING OILFIELD

Three separate layer pressure testing techniques were developed recently in Daqing Oilfield,They are "Eccentric Separate Layer Water Injection Testing Technique With Bridge Passage","Separate Layer Pressure Testing Technique In the Pumping Wells" and "Separate Layer Pressure Testing Technique In the Shut-in Wells".Due to the innovative design of the eccentric bridge passage and test sealing passage,the contradiction of separate layer water injection and testing simultaneously can be solved.Two technical improvements are also made to test the single layer′s flow rates stuck by double leather cups and test single layer’s pressure without running and pulling blank plugs.The error of testing initiated by the progressive decreasing method can be therefore eliminated,and the testing efficiency and data accuracy can also be greatly increased.Eccentric water injection technique with bridge passage can satisfy the demand of separate layer pressure testing and it will definitely take the place of the currently used eccentric water injection technique.The paper also discusses the application of the Separate layer testing data in Daqing oilfield.