Study On The System Of Downhole Operation Multi-level Efficiency Evaluation In Oilfield Enterprises

After decades of exploration and development, Oilfield enterprises in China goesthrough the stage of building production capacity, well network segmentation, highspeed mining, and other stage. The key oilfields have entered in the post-mining stage,it’s more and more difficult to maintain stable production. A huge measure costs putsinto production every year to compensate for the natural decline in order to maintainproduction stability. It’s more difficult to increase production for oilfield enterprises,and the well natural attenuation rate increases. The differences of economic benefitsvary widely. The income in part of the oilfield is insufficient to cover its costs. How tocontrol downhole measures operating costs, improve efficiency synthetically, andprovide decision basic for the production and management has become problems ofOilfield enterprises.This article summarized the theory and practice of effectiveness evaluation,reservoir management and project management at home and abroad systematically. Itbased on downhole operation of oilfield enterprises, in the integrated use of the methodof combining quantitative and qualitative. The article is written from measures project-single well–block levels, and in the use of cost-benefit principle. With hierarchicalmulti-angle analysis, it built oilfield enterprises downhole operation multi-levelefficiency evaluation system, and establish the multi-level effectiveness evaluationmodel which conclude measure projects, single wells, blocks. What’s more, we putthe theory of oilfield enterprises downhole operation multi-level effectivenessevaluation system into practice, and analysed the results of the oilfield enterprisesdownhole operation multi-level effectiveness evaluation system. At last, we proposedthe recommendations and safeguards.Building oilfield Enterprises downhole operation multi-level effective evaluationsystem is in need of meticulous management. It ensures the successful completion ofthe oilfield enterprise budget target. It has the guiding significance in reservoirmanagement. It’s a guarantee to improve profits and competitiveness of oilfieldenterprises.