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五百梯气田是四川盆地迄今发现的最大的整装气田。该石炭系气藏的成藏有利条件为：①志留系油气源十分丰富，生成大量干气；②石炭系储集条件良好，孔隙度为５．０１％～７．７８％，平均渗透率为２．５×１０－３μｍ２，有效储层厚度１４．７～３０．３５ｍ，分布较稳定，储层类型为裂缝—孔隙型；③下二叠统梁山组泥质岩为气藏直接盖层，厚１０～１５ｍ，分布稳定，封盖力强，且直接盖层之上的间接盖层也保存完好，由此构成良好的封盖和保存条件；④印支期古隆起对石炭系油气富集有利；⑤大型地层—构造复合圈闭利于形成大气田。五百梯气田的勘探经历了三个阶段。可资借鉴的经验有：①坚持勘探大中型气田是提高勘探效益的有效途径；②坚持关键技术的攻关和应用是高效拿下五百梯气田的重要手段；③坚持多学科联合开展早期气藏描述，提高勘探成功率；④以发现气藏为战略目标，采用灵活的勘探部署原则；⑤以经济效益为中心，稀井广探，高效率获取最大储量。这些经验的取得，带动了包括明月峡、蒲包山、凉水井、温泉井、渡口河等一大批构造勘探上的突破。
Five hundred stepping gas fields are the largest gas field ever discovered in the Sichuan Basin. The favorable conditions for hydrocarbon accumulation in the Carboniferous gas reservoirs are as follows: ① Silurian oil and gas source is very rich and a large amount of dry gas is generated; ② Carboniferous reservoir conditions are good with porosity of 5.01% ~ 7.78%, average permeability 2.5 × 10-3μm2, and the effective reservoir thickness is 14.7-30.35m. The distribution is stable and the reservoir type is fracture-pore type. ③ The Lower Cretaceous Liangshan Formation argillaceous gas is the direct gas cap , Thick 10 ~ 15m, stable distribution, strong capping ability, and the direct capping layer above the indirect cap is also well preserved, thus forming a good capping and preservation conditions; ④ Indosinian paleo-uplift of the Carboniferous oil and gas rich Set favorable; ⑤ large strata - structural complex traps conducive to the formation of large gas fields. Five hundred ladder gas exploration has gone through three stages. Experiences to be drawn from are as follows: ① Insisting on exploration of large and medium-sized gas fields is an effective way to improve the exploration efficiency; ② Adhering to the key technologies and applications is an important means of winning 500 steep gas fields efficiently; ③ Adhering to multidisciplinary joint development of early gas reservoirs Describe and improve the success rate of exploration; (4) take the discovery of gas reservoirs as the strategic objective and adopt the principle of flexible exploration and deployment; (5) take the economic benefits as the center and explore the wells with high efficiency to obtain the maximum reserves. The acquisition of these experiences has led to a series of structural exploration breakthroughs including the Mingyue Gorge, the Bagan Mountain, the Liangshui Well, the Wenquanjing Well and the Dukouhe River.