CAJ | 학술논문

在实验室条件下，用同种内置式复合射孔器单元在4种不同的靶上进行射孔并测试环形空间p-t曲线，然后检测靶体。通过实验结果的对比分析表明：相同的内置式复合射孔器单元在不同的靶上射孔时的p-t曲线不同，靶越致密则气体的峰值压力越高，持续时间越长，在孔隙度18．4％、渗透率0．102μm2的砂岩靶上形成了3条长裂缝。靶的性质决定p-t曲线特点，可以利用p-t曲线判断复合射孔效果。
재실험실조건하，용동충내치식복합사공기단원재4충불동적파상진행사공병측시배형공간p-t곡선，연후검측파체。통과실험결과적대비분석표명：상동적내치식복합사공기단원재불동적파상사공시적p-t곡선불동，파월치밀칙기체적봉치압력월고，지속시간월장，재공극도18．4％、삼투솔0．102μm2적사암파상형성료3조장렬봉。파적성질결정p-t곡선특점，가이이용p-t곡선판단복합사공효과。
The same type of combined perforator unit perforated in 4 different kinds of targets in laboratory.p-t curves in annulus space and targets were tested .Comparative analysis of the test results show that different targets perforated by the same unit present different p-t curves, in which denser targets have higher peak pressures and longer duration.Three long fractures are generated in the sandstone targets with a porosity of 18.4%and a permeability of 0.102μm2 .Characters of p-t curves, which are responded by the properties of targets , can be used to determine the combined perforation effects .