浅谈大塔场低效气藏低成本钻井模式
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摘要
位于四川盆地蜀南地区的大塔场构造沙一段气藏属于典型的低孔、低渗透、低压气藏,且产层上覆遂宁组、沙二段地层极易发生恶性井漏,因此该气藏钻井工程难度大,风险高。为实现该气藏安全、高效、经济开采,技术团队通过十余年的不断探索,成功提出一套适应该区块的低成本钻井模式,并因此取得了显著的经济效益。
Data structural Es1 gas reservoir located in southern Sichuan Basin is a typical low porosity, low permeability and low pressure gas reservoir, and the overburden of Suining formation and Es2 formation is prone to malignant well leakage, so the drilling engineering of this gas reservoir is difficult and high risk. In order to realize the safe, efficient and economic exploitation of the gas reservoir, the technical team has successfully put forward a set of low-cost drilling modes suitable for this block through more than ten years of continuous exploration, and thus achieved remarkable economic benefits.
Data structural Es1 gas reservoir located in southern Sichuan Basin is a typical low porosity, low permeability and low pressure gas reservoir, and the overburden of Suining formation and Es2 formation is prone to malignant well leakage, so the drilling engineering of this gas reservoir is difficult and high risk. In order to realize the safe, efficient and economic exploitation of the gas reservoir, the technical team has successfully put forward a set of low-cost drilling modes suitable for this block through more than ten years of continuous exploration, and thus achieved remarkable economic benefits.
引文
[1]刘波,刘伟,李黔.氮气钻水平井技术在大塔场构造的应用[J].天然气技术与经济,2010,04(2):30-32.
[2]胡燕林,周崇志.大塔场沙溪庙组储层酸化改造的影响因素[J].天然气工业,1996,16(2):46-48.
[2]胡燕林,周崇志.大塔场沙溪庙组储层酸化改造的影响因素[J].天然气工业,1996,16(2):46-48.