Wenchang 13-1/2 Oilfield Acidification

In this paper, to the actuality production status of WenChang13-1/2 oil field. The operater think there has different jam near the bottom of all the production wells. So in order to solve the problem and increase the production we had done the techno-acidification study detailed. Before the study, we had done the investigation of the blockage reducer in the world. During the study, I have introduced all the characteristic of the WenCHang13-1/2 oil filed, and done the study of acidification system, and soluble eroding between the acid and core, and all the additive for acidification, and the general capality for several acid systems. And estimating the results of the acidification for several acid systems, and the acid flowing in the core, and the eroding for the core by the acid etc. From the study we had get two types of acid system for solving the blockage near the bottom of the production wells. Then we had done the acidification work at WenChang13-1-A9 well with the result of the study of the techno-acidification successfully. Form the production data of the fore-and-aft acidification of A9 well. We can sure that the result of the techno-acidification study can be used in the WenChang13-1/2 oil field to solve the blockage and increase the production. The point about this paper is the good coalescent between the sduty and the practice, and using the practice to prove the correntness of the study.