田勘探和开发过程中,人们对于钻井的井眼轨迹提出了很多新的要求,特别是水平井技术、大位移钻井技术、薄油层钻水平井的技术、水平分支井技术,这些技术要求钻井工具去满足越来越复杂的地层条件,同时还要为了暴露更多的储层,以期获得更大的产能,因此对井眼轨迹的要求越来越复杂。同时为了能提高钻井效率、降低昂贵的钻井成本和减少钻井井下作业的风险,旋转导向技术应运而生。石油圈原创www.oilsns.com
APS Technology公司推出了SureSteer-RSS475旋转导向系统。在发布此项技术之前,APS公司在位于Wallingford的连续油管钻井实验室中完成了原型流量循环测试。
SureSteer-RSS475旋转导向系统可用于5.875英寸至6.75英寸(149mm至171mm)井眼,补充工具主要有钻井动态监控系统 (DDM)和振动存储短节(VMS)等部分等。这一新型旋转导向工具是对SureSteer-RSS675的补充,扩大了APS Technology 公司的旋转导向产品系列。旋转导向马达(RSM)中包含一个集成式动力部分,依据具体情况,RSS可位于钻井马达下方或直接由顶驱驱动。SureSteer-RSM475中的全部工具均采用了成熟的“推靠式”导向技术。
“设计RSM的目的是为了将钻头处的马力最大化,RSS则是为了达到最大造斜速率,满足大型服务企业在精确地控制井眼轨迹方面的需求。” APS钻井产品部门副总裁约翰•克莱格表示,“我很高兴能够目睹公司这款最新产品通过了重要测试,这样我们即可尽快将这一产品提供给客户了。”
SureSteer旋转导向工具可在世界范围内用于定向钻井作业,为大型服务企业提供旋转导向功能。与定向马达所用的常规程序相同,SureSteer的定向控制程序简单易操作。使用APS公司独有的控制系统,这些工具可以运用自动化闭环反馈系统实现垂直角或切线角控制,也可依据下行指令有效完成定向井的钻进。
SureSteer-RSS475旋转导向系统可轻松改变井下运行模式:利用一系列定时泵速的变化,在不同模式之间切换或者关掉工具,从而进行通井、扩孔或者倒划眼。与导向马达类似,该系统动过地面定向设定预期工具面,从而实现导向,最大程度地缩短了下行指令所需时间。同时,SureSteer-RSS475与APS随钻测量工具连接,可进一步优化定向控制效果,并将近钻头信息反馈至地面。
SureSteer-RSS475旋转导向系统的转向头内包括导向块(steering pads)、方向测量和控制电子装置、电力和液压动力系统,由一体化涡轮交流发电机系统驱动。控制电子装置可向液压系统分路阀箱提供定时信号,控制导向方向和转向力,实现预期定向目标。旋转导向系统能够最大化造斜速率,而且能够在高转速下稳定运行。
旋转导向系统以RSM技术为基础,两者操作原理和组件设计相似。主要不同之处在于,RSM结合了旋转导向装置和泥浆马达动力部分,由泥浆马达传动轴提供动力,实现旋转导向控制,同时为连续旋转钻柱提供最佳功率和钻进速度。石油圈原创www.oilsns.com
小编手中还握有SureSteer-RSS475等相关产品更多资料哦,想获取?很简单:请将此文章分享至朋友圈,发送截图和邮箱地址至石油圈微信后台。小编会将资料打包奉上,发送至您的邮箱!
来自/APS Technology 编译/Leia
Designed for directional drilling applications throughout the world, the APS SureSteer Rotary Steerable tools provide “major service company” rotary steerable system functionality with the straighforward directional control procedures used with steerable motors. Utilizing APS’s proprietary control systems, SureSteer can be programmed to use a closed-loop feedback system for vertical or tangent angle control, or to operate with surface-supplied instructions to efficiently drill any directional well plan.
The SureSteer-RSM is designed to maximize horsepower at the bit, and the SureSteer-RSS to maximize build rate. Together, they provide an unparalleled capability to match the major service companies’advanced trajectory control.
SureSteer-RSS475 Description
The SureSteer-RSS475 steering head houses the steering pads; directional measurement and control electronics; and the electrical and hydraulic power systems, which are driven by an integrated turbine and alternator system. The control electronics provide timing signals to a hydraulic manifold to control the steering direction and force to achieve the desired directional objective.
Modes of Operation
Utilizing APS’s proprietary control systems, the SureSteer-RSS475 can be programmed to use a closed-loop feedback system for vertical or tangent angle control, or to operate with surface-supplied instructions to efficiently drill any directional well plan. The mode of operation can easily be changed downhole. A series of timed pump speed changes allow for switching between modes or turning the tool off for events such as wiper trips, drilling out or back-reaming.
Programmable Downhole
The APS SureSteer-RSS475 is straightforward to use. The desired tool face on the initial unit is set by surface orientation, similar to a steerable motor. This minimizes the amount of time required for downlinking. The desired build rate is communicated with timed pump speed changes. Depending on the deployment method, the SureSteer-RSS475 can be directly linked to an APS MWD or LWD system for higher-level, comprehensive trajectory control.
未经允许,不得转载本站任何文章: