Pilot test and effect evaluation of high-swelling particles profile control process

Combined with the current situation of test wells injection string, YHH high swelling particles of profile control construction process was designed based on studying the geological characteristics of profile control test block, and then its profile control mechanism was described in detail. Profile control pilot test results obtained from 4 injection wells of Block West 24-9 Fuyu oilfield confirmed that: the oil increment and water control effect is significant for the corresponding benefit well group, and the YHH high-swelling particles can applied to multi-stage separate injection pipe column in profile control construction process. Compared to the construction with cross-linked polymer, clay, fly ash and lime, the YHH high-swelling particles profile construction has the advantage of short cycle period, lower risk and quick returns, which broadens the way of carrying out the profile control process in the future.