大港油田低渗薄互层油藏整体压裂技术研究

Study on Integra l Fracture Technology of Low Permeability and Thin Interbed R eservoir in Dagang Oilfield

鄂淑君2 秦晓东3

( 1 大港油田公司采油工艺研究院, 天津300280; 2 大港油田公司滩海勘探开发公司, 天津300280;

3 大港油田公司采油四厂, 天津300280; 4 大港油田公司勘探开发研究院, 天津300280)

Oil P roduction Technology Institute,
Dagang O ilfie ld Company, CNPC, Dagang 300280,
China

In 2005, w e deve loped som e re la ted stud ies and
applications on the reconstruction technology of low
perm eab ility and th in interbed reservo irs fo r the Fault-b lock
Guan984, wh ich is a key b lock in the reservo ir eva luation and
productiv ity construc tion o f Dag ang o ilfield. Acco rd ing to the
characteristics of the th in reservo ir and the muddy
interca lation in the fau lt b lock, w e ma in ly study the
comb ination techno logy o f the sand particle d iame ter of the
proppant in order to augm ent the length and breadth o f
fracture and ex tend o il dra inage areas, study the techno logy o f
contro lling the vertica l ex tension of the fracture to avo id
fracturing the low er plu ton ic rocks, study the pro tection
techno logy of the fractured o il reservo ir to prevent c lay
expanding, study the ge l break ing techno logy to increase the
d ischarg ing rate o f fracture liquid and to reduce the dam age o f
reservo ir and fracture propping zone. The averag ing
production o f e ight fractured producing w e lls reaches 13. 3
tons per day through the fie ld using of the techno logy, wh ich
show s that the in teg ra l fracture has go t obv ious e ffect.