井眼清洗工具© 2012 BAKER HUGHES INCORPORATED. ALL RIGHTS RESERVED. TERMS AND CONDITIONS OF USE: BY ACCEPTING THIS DOCUMENT, THE RECIPIENT AGREES THAT THE DOCUMENT TOGETHER WITH ALL INFORMATION INCLUDED THEREIN IS THE CONFIDENTIAL AND PROPRIETARY PROPERTY OF BAKER HUGHES INCORPORATED AND INCLUDES VALUABLE TRADE SECRETS AND/OR PROPRIETARY INFORMATION OF BAKER HUGHES (COLLECTIVELY "INFORMATION"). BAKER HUGHES RETAINS ALL RIGHTS UNDER COPYRIGHT LAWS AND TRADE SECRET LAWS OF THE UNITED STATES OF AMERICA AND OTHER COUNTRIES. THE RECIPIENT FURTHER AGREES THAT THE DOCUMENT MAY NOT BE DISTRIBUTED, TRANSMITTED, COPIED OR REPRODUCED IN WHOLE OR IN PART BY ANY MEANS, ELECTRONIC, MECHANICAL, OR OTHERWISE, WITHOUT THE EXPRESS PRIOR WRITTEN CONSENT OF BAKER HUGHES, AND MAY NOT BE USED DIRECTLY OR INDIRECTLY IN ANY WAY DETRIMENTAL TO BAKER HUGHES’ INTEREST.风险管理•降低卡钻/埋完井设备及尾管风险•确保从钻井到完井阶段的平顺过渡•一趟完成多个作业节约钻机时间•高质量/专有设计工具降低作业风险•全球迄今为止超过1000趟作业典型杂质回收井眼清洗工具•VACS真空负压吸尘系统•多任务井眼过滤•Ultra-Clean 套管刮管器/套管刷•Super 超级井下磁铁•J型循环阀/旋转头•流入测试封隔器•地面杂质捕获器•投球循环接头VACS 真空吸尘系统•环空流速低或大斜度井中收集井下杂质•防止钻屑悬浮于泥浆中,损害防喷器、泵及管线•不需特别性质的流体或高速流•可以下入该工具本身或作为清洗工具串的部件下入VACS 液体流动及组件低速流体割缝寸管导向管（高速流体）喷嘴（压力降）杂物腔冲管VACS应用表•喷射补心可以与很多井底组合配合，以便于回收从小到大的杂物。

VACS 射孔杂质回收VACS 磨铣杂质回收VACSVACS--GrabitzGrabitzUltra-Clean3604 1/213 3/8Ultra-Clean“Ultra-Clean”套管刷•清除结垢、泥浆固体、水泥残留物等•与刮管器关键组件可以互换•非旋转、安全卡块特性•360度接触套管内径J型旋转头•大套管内径处增加流速及转速帮助井眼清洗•激活后总过流面积增大-提高井眼清洗•激活后工具之上的尾管可以旋转，之下的不能旋转•压缩激活•尺寸：7”、9 5/8”涌入测试封隔器•尾管顶部压力测试•工作压力：5000 psi @ 300o F•下钻时过流面积大•压缩座封-20吨，无卡瓦•需投球激活Ball Drop Circulation Valve •No drill string manipulation isrequired•Allows for same size ball for every cycle•Simple, reliable configuration •Modular design to allow for more cycles•Large circulation ports for high flow ratesVACS应用案例Packer Plug and Bridges Plug Retrieval •Reduces nonproductive time by effectivelycleaning the top of the plug and retrieving the plug in one trip •Keeps debris from suspending in wellbore and reaching surface equipment •Minimizes impact to perforation and formation •Reduces risk to equipment •Increases reliability of operation by ensuring accurate retrievalFull-function valve Drill pipeMagnetsWashpipeV ACS enginePorted sub/SkirtDiverter tube String/water melon millTriple-connection bushingRetrieval toolCase History –Packer Plug Retrieval•Well background and challenges:-Gulf of Mexico-Deepwater well with 2,949-ft water depth, 9 7/8-in., 62.8 lb/ft casing, 22,000-ft measured depth, and 35ºwell angle.-The operator needed to clean the perforation burrs, remove the debris on top of the packer plugs, and retrieve packer plugs for the top and middle intervals with minimum operation costsand time.•Baker Hughes solution and results:-The V ACS system included a packer plug retrievable tools, modular V ACSsystem, Grabitz downhole magnets, and full-function valve to complete allrequired operations in just one trip per plug.-The two upper zones were successfully cleaned and the packer plugs wereretrieved. In the middle zone, the VACS system recovered 374 lb（170千克）of debris in both stackable sections. The perforation interval waspolished with the string mill, and the isolation packer plug was recoveredin one run. In the upper section, the VACS system recovered 571 lb （259千克）of debris in both stackable sections, the perforation interval waspolished using the string mill, and the isolation packer plug was recoveredin one trip.Permanent Packers, Bridge Plugs,and Cement Retainers Milling•Reduces NPT by effectively cleaning wellbore and milling packers, bridge plugs, or cement retainers in one trip •Keeps metal shaving and other solids from suspending in wellbore and reaching surface equipment •Effective in wells with partial or total lost circulation when high circulation rate cannot be achieved •Minimizes impact to perforation and formation •Reduces operational risk by removing packer debrisFull-function valve Drillpipe Magnets V ACS engine Diverter tubePacker millWashpipeCase History –Permanent Packer, BridgePlug, and Cement Retainer Milling•Well background and challenges:-South Texas-5-in. production casing to 10,750-ft MD. Packer set to 9,120-ft MD. Low fluid level, partial lost circulation.-The method and technology used by the operator to mill and recover permanent packers in low fluid level (low bottomhole pressure) wells had typically resulted in poor packer milling,excessive milling time, casing damage, and massive debris in the wellbore due to the inabilityto circulate the cuttings to surface.•Baker Hughes solution and results:-Deployed 3 ¾-in. V ACS system with Metal Muncher™ rotary shoe formilling over packer-The V ACS system enabled milling the packer in 20 minutes. Packer cuttings and debris were recovered downhole with no damages to casings or wellbore. The production was restoredwith minimum NPT. This process would be impossible with a conventional method.。