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通过沉积速率线性外推剥蚀厚度恢复、脱压实和异常高压以及古水深校正的单井埋藏史和连井埋藏剖面及构造沉降分析,发现莺-琼盆地是个多旋回沉积盆地,其沉积物埋藏过程可分为早期缓慢浅埋和晚期快速深埋两大阶段.这种独特的埋藏历史不仅是储层孔隙增生与保存的主要控制因素之一,而且极大地影响了烃源岩于酪根热解反应路径、烃类的运移和聚集,异常高压的发育以及所发生的复杂的水(气)—岩相互作用.涸11-4油田位于南海北部湾盆地涸西南凹陷,距广西北海市103km,离涸10-3油田17km.油田于1993年9月19日投产,目前开发形势较好,产量、压力稳定.在开发实践中我们体会到,要提高油田开发水平,搞好油藏监测是非常重要的.1钻井和完井过程中的油藏监测
Through the linear extrapolation of sedimentation rate to denudation thickness recovery, depressurization and anomalous high pressure and paleoclimate correction of single well burial history and well-burial profile and tectonic subsidence analysis, it is found that Ying-Qiong basin is a multi-cycle sedimentary basin with buried sediments The process can be divided into two stages: early shallow slowly burial and late rapid deep burial.The unique burial history is not only one of the main controlling factors for reservoir pore growth and preservation, but also greatly affects the source rock in kerogen Solution reaction pathways, migration and accumulation of hydrocarbons, development of abnormal high pressure, and complex water-gas rock interactions that have occurred in the Beibu Gulf basin in the South China Sea. , Dry up 10-3 oilfield 17km. Oilfield put into operation on September 19, 1993, the current development situation is good, production, pressure stability in the development of practice we realize that to improve the level of oil field development, improve reservoir monitoring is Very important .1 Reservoir monitoring during drilling and completion