A Study On Adaptability Of Fracturing Process Of Yanchang Oilfield

In this paper, in the course of the study, the combination of petroleum geology, reservoir engineering, rock mechanics, fluid mechanics and fracturing technology, carried out a large number of experiments on permeability reservoir fracturing technology of ultra low, make the transformation technology is progressively form a complete set, achieves the goals and tasks of scientific research. A total of the following research:1, We investigated the fracturing technology on the current domestic and international application, focuses on the analysis of water fracturing, hydraulic sand jet fracturing technology, ultra low density proppant fracturing, multi process real-time monitoring method, hydraulic fracturing technology principle, application, and starting from the reservoir conditions, equipment requirements and economic benefits, analyzes its applicability in Yanchang oilfield.2, Fracturing geologic characteristics of the study area are studied and understanding. Collecting, sorting, statistical Wu Qi, Yongning, Jingbian, Dingbian, Zhiluo, North6blocks long6, long2(both long8, long10) reservoir fracturing wells and fracturing technology research on Adaptability of all various reservoir data, including the geological characteristics, reservoir characteristics, sensitivity perceptual features, earth stress and rock mechanics characteristics, drilling data, to accurately determine the basic data of the reservoir, provide parameters for fracturing evaluation.3, The existing Wu Qi, Yongning, Jingbian, Dingbian, Zhiluo, North6blocks of886export fracturing wells fracturing data, oil test data, production data according to reservoir classification separately carries on the reorganization, statistics, analysis. The main research of the electrical property of reservoir parameters, physical parameters and the test oil yield, fracturing parameters and test oil yield relationship.4, Research on Adaptability of fracture process. Focuses on the fracture process under the conditions of propagation rules, and analyses the geological applicability. Using numerical simulation method, the matching between the fracture morphology, reservoir and well network condition and three were studied. 5, In the low permeability reservoir, mainly from three aspects to improve reservoir in vertical degree of renovation, penetration of fracture and fracture flow capacity, puts forward corresponding technical solutions; in bottom water reservoir, in order to avoid the fracturing process communication layer as the main target, put forward two process schemes.