Research Of Technology To Increase Per-well Production About Chang7Oil Reservoir In Jiyuan

Chang7oil reservoir in Jiyuan have a huge reserves, it is a important super-seder to produce50million and keep stable production.But chang7oil reservoir is a typical consolidated oil reservoir. Restricted by stimulation technology, prophase production of per-well production is low.According to poor physical property, tiny holes, low per-well production and other features of An83Chang7oil reservoir, and reference foreign experience, this paper presents a general technical ideas of " Increase the drain reservoir volume and reduce the formation damage", on the basis of research of reservoir fracturing, carry out a large number of indoor research, preferre characteristics suitable for the reservoir fracturing proppant and fracturing fluid system.At the same time, it spread ang use inclined well multi-interval fracturing, Multilevel,polyhydric alcohol fracturing fluid and other mature technology.And carrying out exploratory test od new process of horizontal well,to increase per-well production..2011Applications96(including2horizontal wells), the average single-well test oil daily oil12.1cubic meter, Nissan water3.3cubic meter. Through the integration applications of technology to improve well production, increase the initial per-well oil production0.33t, an increase of21.9%. This research has important significance of the demonstration and radiation.