09/05/2026
DSP-1 Field Application Case - Well Jiantan-1
Are you facing challenges maintaining drilling fluid stability in ultra-high temperature deep well sections up to 235℃?
Our DSP-1 fluid loss reducer delivers outstanding high-temperature performance, effectively stabilizing the drilling fluid system and ensuring smooth drilling and completion operations even in harsh ultra-high temperature formations like Well Jiantan-1.
Well Jiantan-1 is a key exploratory well drilled by CNPC Western Drilling in Huatugou Town, Mangya City, Haixi Prefecture, Qinghai Province, with its structural location at the Jianshan Structure of the Central Nasal Uplift Belt in the Qaidam Basin.
The lithology and electric logging curves of the actually drilled Well Jiantan-1 show good correlation with those of adjacent exploratory wells. The fifth spud section (borehole size: φ149.2mm) was deepened twice (from 5998m to 6200m, then to 6343m), and the bottom-hole temperature reached an ultra-high temperature of 235℃ upon well completion, posing an extremely severe challenge to the high-temperature stability of the drilling fluid. As the main fluid loss reducer applied in the drilling fluid construction of this ultra-high temperature well section, DSP-1 played a pivotal role in ensuring the high-temperature stability of the drilling fluid system, enabling the smooth completion of drilling and well completion operations in the ultra-high temperature well section.
（DSP-1 is produced by solvent polymerization with optimized high-temperature and salt-resistant monomers. Its enhanced steric hindrance and molecular rigidity overcome the weaknesses of conventional filtration reducers in shear resistance, salt tolerance and HTHP performance.
It stably works up to 240℃, adapts to deep and ultra-deep wells, and tolerates saturated salt and calcium up to 5,000 ppm. This product effectively reduces HTHP fluid loss, improves mud cake quality and inhibits clay hydration, performing well in fresh water, salt water, saturated brine and seawater drilling fluids.）
DSP-1 Copolymer for Drilling Fluid Filtration Loss Reducing Filtration Control --- Click to quickly check key information of this product, and we recommend this for you: https://deshunyuan.en.made-in-china.com/product/KErUDfbcaiRj/China-DSP-1-Copolymer-for-Drilling-Fluid-Filtration-Loss-Reducing-Filtration-Control.html?utm_source=facebook&utm_medium=free&utm_campaign=featuredproduct_share&utm_content=EZCTIuDHaYip_1014229782
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