XX-6井DST3高表皮系数分析及措施建议

Analysis of High Skin Factor to XX-6 DST3 and Its Corresponding Stimulation Suggestion

XX-6井DST3高表皮系数严重影响了该井的产能。针对污染表皮和脱气表皮谁是影响产能的主要因素,通过深入分析XX-6井、XX-3井、XX-10井三口井的测试、测井资料,依据XX-6井DST3一关和二关期间由地层污染引起的伤害系数不变的原理,得出地层污染是造成XX-6井低产的主要原因,脱气对其产能影响不大。建议射开上部M-II储层,对两层进行措施改造并一起测试,产能应会有大幅度的提升。研究成果对深入理解表皮系数及拓展试井资料的应用范围具有一定的借鉴意义。

High skin factor of XX-6 DST3 reduced deliverability greatly. According to which is the main factor to influence deliverability of the pollution or degasification skin factor,and through the integrated analysis of well testing and well logging data of XX-6,XX-3 and XX-10,skin factor caused by pollution is the main factor leading to low deliverability of XX-6 but not by degasification based on theory of that the damage factor caused by pollution didn't change during the first shut-in and the second shut-in period of XX-6 DST3. It is suggested to perforate the upper formation of M-II formation and to test M-II and J-0-1 formation together,which would increase deliverability of XX-6 greatly. The study is meaningful to understand skin factor intensively and extend the application area of well testing data.