Application Of Gas Drilling In Deep Gas Reservoir Of Jilin Oil Field

In 2013, Jilin Oilfield conduct nitrogen drilling test in natural gas well Ying deep 306-1, Fu 12-16 well, and achieved good results, but because the corresponding technology does not form a complete set, the advantage of gas drilling technology is still not get into full play. Gas drilling technology will be in scale application in deep natural gas exploration and development in Jilin Oilfield in 2014. Therefore, conduct ing a deeply optimization research for gas drilling matching technique, this could provide key drilling technical support for the exploration and development of deep natural gas resources, It has important practical significance.(1) Based on the geological data of the four blocks of Jilin Oilfield Dehui, Yingtai, Fulongquan, palace of a feudal prince. To the pressure of the block formation, the formation production of oil and gas, appearance of stratum water, stability of wellbore, conduct a systemic analysis. Combined with the gas drilling adaptive condition, making evaluation adapt to the conditions of four blocks of gas drilling adaptability, formed a set of gas drilling adaptability evaluation scheme to adapt to geological characteristics of Jilin Oilfield.(2) Combined with indoor simulation experiment of gas drilling efficiency of carrying rock to study the fluid flow characteristics of gas drilling and analyse the influence factors of gas drilling efficiency of carrying rock, and put forward a set of technological scheme helpful to improve the gas drilling efficiency of carrying rock.(3) Develop a meet indoor design demand of gas drilling gas injection parameters optimization design software, the optimized for DE 35 feet deep well gas drilling construction scheme, and has been applied in the field, and achieved good effect.(4) In combination with the geological conditions and construction conditions of Jilin oilfield, the conditions of gas drilling and gas drilling are analyzed, and a set of conversion process of gas phase to liquid phase is analyzed.Through this research, forming a optimizing design technology of gas drilling supporting process adapt to the geological characteristics of Jilin Oilfield, and developed a optimizing design software of gas drilling gas injection parameters meet indoor design demand, has fulfilled all the tasks of the project requirements and technological achievements reached assessment index requirements.