| In this paper we analyzed the oil production of chang109 block, water injection in the process, liquid production, containing water and pressure. And Chang109 block was divided into 3 areas. Then according to the response, pump pressure and recovery curve etc. basic data of the three well field, analyse the single well of each well field,then comprehensive evaluation. Based on the analysis of single well,we devide the chang 109 block into 27 well group,dynamic analysis the representativeness well grop chang 109-6-14 and chang 109-9-7. Comprehensive evaluation the well group from well group injection recovery history, connectedness, hygroscope cut plane experiment,submergence depth,and we give the oil well response diagram.At last, Based on the analysis of single well and single well group,we analyse the injected and extraction of chang 109 block, comparative analysis the data of three well field, we account that the chang 109-1 exploitation effect is better in Chang109 block.We analyse the reason that horizontal well do not rech the anticipation effect in Chang109-1 well field, abnormal high-water zones in Chang109-2 well field, the high postion of Chang109-2 well field have a better adjustment capability.chang 109-3 well field have a bad exploration effect and gas-production have a serious effect on production,and the dynamics of production reflect injection-production structure's disproportionBy analyzing those questions of Chang 109, the recognition level of this block was improved, a reasonable oil dynamics analysis system was built. through continue injection-production adjustment to ensure prodution with a relative stability of oil-production, water and pressure, establish the basis for the further exploit of this block, and develop oil reasonablely. |