17-12-2014 дата публикации
Номер: CN104213885A
Автор:
LI JIANJUN,
LI CAIXIONG,
LI ZHIYAN,
HOU LIPENG,
XIONG YING,
JI YANLI,
ZHANG CHUANGAN,
DENG LUQIANG,
TIAN JIANRU,
LIN YUN,
ZHANG JIALIANG,
LI HONGPING,
REN JIANFANG,
GUO YANYAN,
GUO FUGANG
Принадлежит:
The invention relates to an acidification and profile control integrated method. The method includes the following steps of analyzing the development history of oil deposit and the current situation of a water injection well, and screening a high-pressure water injection well; conducting acidification processing, wherein acid liquid matched with a target stratum is rapidly injected into the stratum through a high-pressure pump truck on the premise of the pressure lower than the stratum breakage pressure, the acid liquid is made to permeate the stratum to corrode blocking objects in hole gaps, hole space is enlarged, the diversion capacity of the stratum is restored or improved, and the water injection pressure is reduced; conducting profile control processing, wherein acid-resistant profile control agents are injected into the target stratum, highly-permeable bands with the high water absorption capacity are blocked, and a permeation channel where water is injected is changed. By means ...
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