Horizontal Well Overall Development Technology And The Effect Evaluation Of Changling Denglouku Group Gas Reservoir

In view of the changling gas field denglouku group gas reservoir characteristics of complicated geological conditions, the development is difficult, first through the re-recognition and enrichment region optimization study on geological characteristics, geological, seismic, gas reservoir engineering and other multi-disciplinary comprehensive research, finally formed a set of suitable for changling gas denglouku group gas reservoir horizontal well overall development and effect evaluation technology, realization of denglouku group of each main series high efficient horizontal well development wayThis article through to the denglouku group gas reservoir geological characteristics between research, and provided the basis to optimize well placement. Application enrich the drill, recording, measuring data, describe the reservoir distribution rule, clear Ⅲ, Ⅳ sand group overall gas, high quality reservoirs mainly tectonic subject area, for the purpose of horizontal layers. By applying the prestack AVO hydrocarbon hydrocarbon detection and multiple conditions gas reservoir geological modeling technology, analysis of hydrocarbon content and the outer one, two enrichment region distribution of sand group. Carry out economic benefit as the ultimate goal, evaluation the adaptability of denglouku group gas reservoir horizontal well development, establish the multistage fracturing horizontal well development way, to form the horizontal well technology deployment optimization design. Through horizontal well site implementation, detailed oriented process, form the technology section of horizontal well. In view of the deep tight gas reservoir to establish evaluation index system of horizontal well, the formation of horizontal well development effect evaluation technology.Finally sign 60 wells, which using the drilling of old well 15, including four vertical wells, a new drilling of production wells 45(both for horizontal wells), formed gas 800 million annual output capacity, gas recovery rate 2.7%, stable time for eight years. Realize the changling denglouku group gas reservoir efficient development as a whole.