A Study Of The Secondary Comprehensive Matched Technology On The Qian 12 Xinglongtai Reservoir

The qian 12 Xinglongtai reservoir was putted into production in September 1991. After these processes of the original well pattern, the adjustment programs and layer adjustment, by August 2006, there had been 115 oil wells, and 9 open wells. In addition, the daily oil production was 18 t/d, and the recovery percent of reserve and the cumulative recovery water rate were 4.47%, 134.68%, respectively. This block was in the flooding hingh water cut and out production state. In order to improve the development results further increase the production level of the block reserves, the geological characteristics of the qian 12 Xinglongtai reservoir was rediscovered. The structure was re-assured, combining the seismic profiles with the single well logging curve. Through the study of the physical property relationship of reservoir bed, the laws of flooding and remaining oil distribution were determined, by dynamic monitoring techniques.And the block reserves and recoverable reserves were re-estimated.On this basis, the next direction of developing remaining oil is given. The comprehensive matched technology measures, such as conventionally recovering production, lateral drilling, deep-shallow block transfer, test horizontal wells and so on, are taken for the wells in the rich remaining oil areas. The block developed effect has been significantly improved. Compared with August 2006, in November 2008, the block open wells rose from 10 to 38.The daily oil production is from 22 t/d up to 65 t/d, an increase of 43 t/d. And the production rate rose from 0.11 percent to 0.33 percent, an increase of 0.22%. Because of the use of the comprehensive matched technology, the second development of the qian 12 Xinglongtai reservoir reaps preliminary fruit.