海洋钻井岩屑高效随钻多级处理技术研究

打开文本图片集

ShiChenghui，LiBin，Yan Haiyuan，etal.Eficient multistage offshore drill-cuttings treatment while drilling[J].China PetroleumMachinery，2026，54（3）：121-128.

中图分类号：TE254 文献标识码：A D0I：10.12473/CPM.202502002

Efficient Multistage Offshore Drill-Cuttings Treatment While Drilling

Shi ChenghuilLiBin1Yan Haiyuan’Zhang Guilei1Zhang ZhonglianglLiWei²Feng Yongcun³ （1.ChinaOifeldServicesLimited;.TianjinEcofriendlyechnologyCo.，Ld.；3.ColegeofPetroleumEngineering，China University of Petroleum（Beijing））

Abstract：Water-based drilling fluid is commonly used in the Bohai Oilfield，which may result in a large amount ofstructurallycomplex water-based drill-cutings.Ofshore water-based drill-cutings treatment equipment usuallyfaces theissuessuch as large footprintand low efciency.Based onthephysical propertiesof offshore water-based drill-cutings and the characteristics of offshore driling platforms，a process flow was designed，and an efficient three-stage water-based drill-cuttings treatment while drilling（TWD）system was proposed.Through numerical simulation and field tests，this system was determined to be a combination of centrifuge + decanter centrifuge + belt filter press，with a solid removal rate of 55% ， 30% and 15% respectively at these stages. After linkage test and structural optimization ofthe system，a multistage reduction equipment with a footprint less than 80m2 （2 was developed.Field application demonstrates that the multistage reduction equipment features a large treatment capacity （up to 28.8m3 ）and can realize a continuous operation without the need to install a waste storage tank. The resulting solid phase exhibits asmallwater volume fraction，and the liquid phase is clear and recyclable，indicating an efect of“no drilling waste on ground”and liquid phase recycling.The research provides a reference for further optimization of offshore drilling waste treatment process.

Keywords： offshoredrilling;；water-based drill-cuttings；treatment while drilling；multistage reduction equipment；numerical simulation；decanter centrifuge；solid content volume fraction

0 引言

渤海油田作为我国海上油田，其勘探开发规模扩大导致钻井废弃物处理难度增加[1-2]。（剩余12102字）