التفاصيل البيبلوغرافية
| العنوان: |
低成本低油水比低土相油基钻井液技术 研制与应用. (Chinese) |
| Alternate Title: |
Research on Low-Cost,Low Oil-Water Ratio,Low Soil Content Oil-based Drilling Fluid Technology. (English) |
| المؤلفون: |
高文龙 |
| المصدر: |
Special Oil & Gas Reservoirs; Aug2024, Vol. 31 Issue 4, p142-148, 7p |
| Abstract (English): |
The application range of oil-based drilling fluids is extensive. To reduce the cost of oil-based drilling fluids, a new low-cost formulation with a low oil-water ratio and low soil content was developed. This was achieved by selecting affordable oil-based base fluids, developing new single-dose high-efficiency emulsifiers, reducing the oil-water ratio, and decreasing the addition of organic soil. The performance of the new formulation was evaluated in the laboratory. According to experimental results, the oil -water ratio of the drilling fluid can be adjusted within the range of 65 ∶ 35 to 85 ∶ 15. The organic matter content is limited to 2. 0% or lower, with a density of 1. 4 to 2. 2 g/cm ³ and temperature resistance up to 200 ℃ . The demulsification voltage is greater than 800 v, high temperature and high pressure fluid loss is less than 3 mL, and the unit cost of oil-based drilling fluid is reduced by over 15% compared to the fluid prepared with No. 3 white oil. This fluid is suitable for -25 ℃ conditions and can meet construction needs during winter in the Liaohe Oilfield. The low-cost, low oil-water ratio, low-soil oil-based drilling fluid has been successfully applied in shale oil and tight oil formations in Liaohe Oilfield. Field application results demonstrate its stable performance, good plugging and anti-collapse capabilities, excellent emulsification stability, good low-temperature resistance, and significantly reduced unilateral cost. These research findings contribute to the expansion of the application scale of oil-based drilling fluid and can meet the technical requirements for the low-cost, safe, and efficient development of unconventional oil and gas reservoirs. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
油基钻井液的应用范围较广, 为降低油基钻井液成本, 通过优选低成本油类基础液, 开展 研发新型单剂高效乳化剂, 降低油水比, 降低有机土加量等研究, 建立了新型低成本低油水比 低土相油基钻井液配方, 同时对其性能进行了室内评价。实验结果表明:该钻井液油水比在 65: 35~ 85: 15 范围可调, 有机土加量小于等于 2. 0%, 密度为 1. 4 ~ 2. 2 g / cm ³, 抗温达 200 ℃, 破乳电压大于 800 V, 高温高压失水量小于 3 mL, 油基钻井液单方成本较 3 号白油配制的 油基钻井液降低 15%以上, 适用于-25 ℃ 条件, 可满足辽河油区冬季施工需求。在辽河油区页 岩油、致密油地层进行了应用, 现场应用结果表明, 低成本低油水比低土相油基钻井液性能稳 定, 封堵防塌性能良好, 乳化稳定性良好, 耐低温效果好, 单方成本明显降低。研究成果有利于 油基钻井液应用规模的扩大, 可满足非常规油气资源低成本、安全、高效开发的技术需求。 [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |