This summer, Baker Hughes is commercially launching itsnewest fluid system, NSURE. NSURE was developed to provide constant rheologyfrom 40°F to 275°F. Baker Hughes classifies the system as “constant rheologydefined,” meaning that when it was under development, engineers set specifictarget ratios for rheologies at both low and high temperatures. Because NSUREhas a more constant rheology, it also performs well in cementing operations,helping to maintain the required friction-pressure hierarchy. The fluid wasdesigned for use offshore in Norway, which has some of the world’s moststringent environmental standards.
今年夏天，贝克休斯公司发布了它的最新商用反相乳化钻井液体系即NSURE。温度在40°F到250°F之间时，NSURE具有稳定的流变学性能。贝克休斯公司把这个系统归类为具有稳定流变学特性，意思是它在研发的时候，工程师们同时设置了低温和高温下的流变学特性的具体目标比值。因为NSURE有更稳定的流变学特性，因此它在固井作业方面也表现良好，能够帮助保持要求的摩擦-压力等级。最初该钻井液设计用于挪威海上生产，具有全世界最严格的环境标准。由于对环境的适应性和灵活性，NSURE可用于全球各地海上钻井作业。
Early in the field trial process, the fluid’s ability to resistbarite sag was put to an unexpected test. The workboat transporting the fluidto the rig was unable to offload to the rig for 14 days due to rough seas. However,the fluid went on the boat at 11.2 lb/gal and remained at 11.2 lb/gal when itwas finally brought onto the rig.
早期在现场试验过程中，该钻井液呈现抗重晶石沉积的能力。测试前，运送钻井液去钻机的作业船因为凶险的海上环境，经过14天都不能将钻井液成功送至钻机。然而，最终送达时该钻井液密度仍保持在11.2 lb/gal。此次测试经历无意间验证了其抗重晶石沉积的能力。
Looking to the future, Baker Hughes is working onraising the temperature limitations of some of its existing fluids.The companyis conducting research and development on higher-temperature versions ofLATIDRILL, which currently works in environments up to 275°F. This WBM utilizesa minimum number of components for ease of use when drilling the upper hole. Iteliminates the need to add in a variety of viscosifiers and fluid loss additivesseparately. The system targets unconventional plays and lateral, deviated andextended-reach wells. Baker Hughes is working to develop a version of thisfluid that can be used at temperatures as high as 350°F.
未来贝克休斯公司将努力提高一些现有的钻井液的温度极限。公司正在开展LATIDRILL钻井液高温版本的研究和开发，目前这种钻井液工作的温度最高是 275°F。该水基钻井液使用的成分少以方便钻上部井眼时候的使用，无需添加一系列增粘剂和钻井液漏失添加剂。该体系主要用于非常规产层和水平井、斜井和 大位移井。贝克休斯公司正在研究更新该体系钻井液，使其能够在温度高达350°F下使用。
The company is also looking at extending thecapabilities of MPRESS, an invert emulsion fluid (IEF) formulated to help boostflow rates on land operations. This fluid currently works in environments up to275°F, but research is under way to push it to 350ºF, according to the company.
贝克休斯还在考虑拓展MPRESS的性能。该体系是一反相乳化钻井液（IEF），陆上作业时用来提高钻井液流速。根据公司所说，该钻井液作业最高温度275°F，目前正在研究将工作温度提高到350°F。
（来源：金正纵横最新工程技术监测报告）
