摘要
高峰场气田石炭系气藏 ,已有峰 8、峰 7两口井产出了地层水 ,峰 3井也有地层水推进迹象。峰 8井水侵主要表现 ,为局部大压差下的边水舌进 ;峰 7井水侵与断层裂缝的导通密切相关 ,但同时也存在一个逐步推进的过程 ,总体评价气藏边水能量较弱 ,属不活跃边水气藏。水侵已导致峰 7井产能降低、气藏动态储量减少和生产管理难度增大 ,并影响了开发方案实施 ,最终开采效果也将变差。下一步治理措施应立足于整体开发和储量、产能动用 ,峰 3、峰 8井应实施控水采气 ,峰 7井应尽快恢复带水采气生产。在南区有必要增打 1口～ 2口开发补充井 ,同时还应考虑气藏整体增压、泡排。
There have been 2 wells of Feng 8 and Feng 7 in Carboniferous gas reservoir of Gasfengchang gas field, which produces formation water, and also a sign of formation water advance in well Feng 3. Water invasion of well Feng 8 shows mainly edge water tonguing, water invasion in well Feng 7 is closely related to fault fracture passage, but simultaneously there exists a progressively advancing process, by overall appraisal, gas reservoir edge water energy is weaker, belonging to inactive edge water gas reservoir. Water invasion bas led to productivity lowering, reservoir dynamic reserves lessening and production management more difficult for well Feng 7 and has influenced the implementation of developing scheme, ultimately the exploitation result will also be worsened. The next harnessing measure should be based on overall development; gas production by controlling water should be practiced for wells Feng 3 and Feng 8, and water-bringing gas production should be recovered the soonest for well Feng 7. It is necessary to additionally drill 1～2 development replenishing wells in south area, and simultaneously technic adaptability reformation on such respects as gas reservoir overall pressurization, foam-draining, formation water reinjection treatment and pipe string structure adjustment should yet be considered.
出处
《天然气勘探与开发》
2004年第4期18-22,28,共6页
Natural Gas Exploration and Development
