中国石油网消息：截至9月28日，大港油田今年以来，依托测井老井再评价攻关形成的系列新方法完成老井复查1810井次，实施挖潜措施后累计增油近2万吨、增气超220万立方米，实现“零进尺增储、低投入拿油”。

China Oil News: As of September 28th, since the beginning of this year, the Dagang Oilfield, relying on the breakthrough research on re-eva luation of old wells, has completed the re-examination of 1,810 old wells. After implementing the measures for enhancing production potential, it has cumulatively increased oil production by nearly 20,000 tons and gas production by over 2.2 million cubic meters, achieving "zero drilling depth for reserve increase and low investment for oil production".

历经60多年的勘探开发，大港油田老区剩余油分布日趋复杂，现有测井解释方法难以满足挖潜的新需求。今年以来，大港油田优选四大区块，重点针对水淹层、低孔渗储层开展复查，探索老井再评价新方法，深挖新层系、新圈闭、新砂体的油藏潜力。

After more than 60 years of exploration and development, the remaining oil reserves in the old area of Dagang Oilfield have become increasingly complex. The existing logging interpretation methods are unable to meet the new demands for enhancing production. Since this year, Dagang Oilfield has selected four major blocks and focused on re-examining water-flooded layers and low-permeability and low-permeability storage layers. It is exploring new methods for re-eva luating old wells and deeply exploring the oil reservoir potential of new strata, new traps and new sand bodies.

在成藏、沉积微相、储层主控因素等新认识的基础上，攻坚团队针对各区块的地质难点逐一进行破解：在大南港地区，形成深层多类型低孔渗储层分类评价方法；在大板桥地区，剖析低阻油层、高阻油层成因机理，配套建立综合评价技术与分类标准。

Based on new understandings such as reservoir formation, sedimentary microfacies, and the main controlling factors of the reservoir, the breakthrough team has solved the geological difficulties of each block one by one: In the Daxianggang area, a classification eva luation method for deep multi-type low-porosity and low-permeability reservoirs was formed; in the Dabaizhong area, the formation mechanisms of low-resistance and high-resistance oil layers were analyzed, and comprehensive eva luation techniques and classification standards were established accordingly.

截至目前，攻坚团队应用系列新方法挖掘潜力366层，实施措施52层，支撑探井井位部署4口，老井实施后初见成效。以联浅1-6-2井为例，攻坚团队将原解释结论由油水同层升级为一类油水同层，补孔投产后该井日产油量达11.63吨。

As of now, the breakthrough team has applied a series of new methods to explore potential in 366 layers, implemented measures in 52 layers, deployed 4 exploration wells, and achieved initial success after implementing the old wells. Taking the Lianjian 1-6-2 well as an example, the breakthrough team upgraded the original interpretation conclusion from oil and water in the same layer to one type of oil and water in the same layer. After supplementary perforation and commissioning, the daily oil production of this well reached 11.63 tons.