| Since the "Tenth Five-Year" has been, add proved reserves and new capacity reserve of shortage, in order to ensure stable production of crude oil in Liaohe Oil Region,it's increasingly important to optimization and evaluation of the deployment of recoverable reserves of hard. The end of 2007, Liaohe oil recoverable reserves of hard is 3.98 million tons, accounting for 17% of proved reserves. This part of reserves at that time due to limited by data quality, degree of exploration and evaluation and the level of comprehensive study, leading to low levels of reserves to implement, difficult to verify the reserves; Scattered distribution, historical causes of static and dynamic information is not complete, not systematic, and poor reliability, leading to evaluation and selection of difficult; Complex geological reservoir, special lithology, reservoir heterogeneity and diversity of reservoir types, leading to the second evaluation is difficult. Research projects from starting to implement difficult recoverable reserves of resources, application of new standards to verify the geological reserves of oil and gas reserves, assessed reserves of 297 million tons. Combining the characteristics of difficult recoverable reserves , create a set of "evaluation foundation, evaluation units, evaluation parameters and evaluation methods" Four in One's difficult recoverable reserves evaluation model. Application of the ideal point method for coarse screening difficult recoverable reserves,in this basis, in accordance with the "four changes" in the evaluation of ideas, creating static and dynamic combination of wells of screening of multiple evaluation systems, fine screening for evaluation blocks. Constraints in the analysis of factors restricting the use Block Development, practicing "four changes" in the second evaluation of new ideas, closely integrated multi-disciplinary, joint research and fine characterization the geological reservoir, Second evaluation and deployment of difficult recoverable reserves obtain good results, 2008-2010,In Shu 103, Wing 72, and 32 blocks implementing second evaluation of difficult recoverable reserves, using of reserves of 29.67 million tons, increasing recoverable reserves of 4.95 million tons, implementing 318development wells, accumulated into production capacity of 628,000 tons, achieve better development results, effectively complement the new capacity building. |
