滚动负压筛在国内油气钻井中的试验与应用  

Testing and Application of Rolling Negative Pressure Screen in Domestic Oil and Gas Drilling

作　　者：代锋 傅栋 曹世平 侯勇俊[3] 巫英泽 刘有平 孟军 DAI Feng;FU Dong;CAO Shiping;HOU Yongjun;WU Yingze;LIU Youping;MENG Jun(Sichuan Changning Gas Development Company,Chengdu 610051,China;Development Division,PetroChina Southwest Oil and Gasfield Company,Chengdu,610021,China;School of Mechanical and Electrical Engineering,Southwest Petroleum University,Chengdu 610500,China;BOMCO Sichuan Petroleum Drill Bit Co.,Ltd.,Chengdu 610051,China;BOMCO Sichuan Special Vehicle Co.,Ltd.,Guanghan 618300,China;Chuanqing Drilling Engineering Co.,Ltd.,CNPC,Chengdu 610051,China)

机构地区：[1]四川长宁天然气开发有限责任公司,成都610051 [2]中国石油西南油气田分公司开发事业部,成都610021 [3]西南石油大学机电工程学院,成都610500 [4]四川宝石机械石油钻头有限责任公司,成都610051 [5]四川宝石机械专用车有限公司,四川广汉618300 [6]中国石油集团川庆钻探工程有限公司,成都610051

出　　处：《石油矿场机械》2024年第4期69-74,共6页Oil Field Equipment

基　　金：四川省科技计划项目“沙漠钻井液随钻高效回收关键装备研究及应用”(2022YFQ0064);中国石油天然气集团公司工程技术科技统筹项目“新产品新工艺攻关与现场试验”子课题“固控系统优化与配套应用研究”((2017T-003-004)。

摘　　要：传统钻井振动筛在常压下依靠振动产生5~6g的抛掷力将钻屑从钻井液中筛分出来,钻屑含液率高,固废量大。滚动负压筛是一种基于带式真空过滤原理与微振动复合作用的钻井液固液分离装置,其钻井液的透筛主要依靠真空作用,钻屑含液率低,钻井液回收率高,固废产生量少。2014年以来,国内陆续引进部分滚动负压筛,在海洋钻井固废减量和陆地钻井钻屑减量中进行了试验和小范围的应用,但相关的试验和应用报道较少。对滚动负压筛在国内陆地钻井中进行了应用和对比试验,试验结果表明,滚动负压筛排出钻屑的体积含液率可降低到35%以下,油基泥浆时,每米进尺泥浆消耗量和固废实际产生量比传统振动筛可分别降低32.25%和51.63%,分离出的钻井液含砂量和有害固相降低,提升了钻井液的性能。滚动负压筛的应用具有较好的经济效益和环保效益,但一次性设备投入成本较高,可能影响其大面积的推广应用。Traditional shale shakers rely on vibration to generate a throwing force of 5-6g under normal pressure to separate cuttings from drilling fluid,resulting in a high liquid content of cuttings and a large amount of solid waste.Rolling negative pressure screen is a drilling fluid solid-liquid separation device based on the principle of belt vacuum filtration and micro-vibration composite action.The screening of drilling fluid is mainly based on vacuum action,resulting in low content of drilling cuttings,high recovery rate of drilling fluid and low generation of solid waste.Since 2014,some rolling negative pressure screens have been introduced in China and have been tested and applied on a small scale to reduce solid waste in offshore drilling and drilling cuttings in onshore drilling.However,there are relatively few reports on relevant tests and applications.In this article,application and comparative experiments were conducted on the rolling vacuum screen in domestic land drilling.The experimental results showed that the volume liquid content of the cuttings discharged by the rolling negative pressure screen can be reduced to less than 35%.When oil-based mud is used,the consumption of mud per meter and the actual production of solid waste can be reduced by 32.25%and 51.63%,respectively,compared with the conventional vibrating screen.The sand content and harmful solid phase of the separated drilling mud are reduced,and the performance of the drilling mud is improved.The application of rolling negative pressure screen has good economic and environmental benefits,but the investment cost of disposable equipment is relatively high,which may affect its large-scale promotion and application.

关 键 词：固控技术 滚动负压筛 钻屑含液率 固废减量 经济性 

分 类 号：TE926[石油与天然气工程—石油机械设备]