胜利油区纤多糖无固相钻井液

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引用格式：. 胜利油区纤多糖无固相钻井液[J]. 当代化工，2026, 55（4）：862-866.

LI Wenming. Cellulose Polysaccharide Drilling Fluid without Solid Phase in Shengli Oilfield[J]. Contemporary Chemical Industry, 2026, 55(4): 862-866.

（中石化胜利石油工程有限公司黄河钻井总公司，山东东营257500）

中图分类号：TE254；TQ027

文献标志码：A

文章编号：1671-0460（2026）04-0862-05

Cellulose Polysaccharide Drilling Fluid without Solid Phase in Shengli Oilfield

LI Wenming

(Sinopec Shengli Petroleum Engineering Co., Ltd. Huanghe Drilling Company, Dongying Shandong 257500, China)

Abstract: The main factors causing reservoir damage in Shengli oilfield include solid-phase invasion, clay hydration, adsorption of dispersive treatment agents, and water blocking. Existing drilling fluids cannot fundamentally resolve these reservoir damage issues. Based on the multiple requirements of environmental protection, reservoir protection, and on-site drilling fluid performance, the cellulose polysaccharide product DACP-1 was synthesized in the laboratory. This product exhibits comprehensive performance, such as rheology modification and filtration reduction. Through system optimization and performance evaluation, an environmentally friendly, solids-free, reservoir-specific drilling fluid system was developed. This system does not contain solid-phase components, requires a low dosage of the main agent, is non-toxic and biodegradable. Compared with traditional solids-free drilling fluids, it offers lower cost, enhanced temperature and calcium resistance, and excellent collapse inhibition performance. Field applications have shown that the system not only achieves reservoir protection under solids-free conditions, but also addresses issues such as clay dispersion in upper formations and mudstone collapse in lower formations. Additionally, it significantly improves the rate of penetration compared to traditional systems and enhances cementing quality.

Keywords: Oil; Natural gas; Solids-free; Reservoir protection; Cellulose polysaccharide; Drilling fluid; Synthesis

随着胜利油区勘探开发进度不断加深，断块、低渗透、稠油等难开发产量所占比重越来越大[1-4]，做好油层保护、提高产量愈发重要。（剩余8881字）