Weatherford推出的新型完井系统仅需一次下钻即可完成全部作业！

编译 | 惊蛰

在昨天的文章中，为大家简单介绍了Weatherford推出的新型完井系统TR1P，该系统仅需一次下钻即可完成完井作业，效率极高，且支持远程作业，可谓是开发商的一大福音。今天将继续为大家介绍该系统的其他重要组成工具。

智能完井封隔器

Weatherford智能完井封隔器(ICE)是一种可回收、液压坐封式、多控制管线旁通，可实现智能完井作业中的分层隔离。其一体式阀体设计，使该ICE工具无论在陆地或海上环境，都可为仪表、化学注入以及其他系统提供多条管线。旁通功能还可实现，将仪表与化学品注入系统置于完井隔离系统之下。

根据国际标准化组织（ISO）14310规定进行测试，该ICE工具拥有多种坐封方式。控制管线压力、机械式连通短节、用于连通短节的射频识别（RFID）都可用来激活坐封该封隔器。使用直拉式剪切释放器，可将ICE工具释放到收缩位置。

Optibarrier球阀

Weatherford公司的Optibarrier球阀可控制井筒流量，通过安装在管串上的双向球阀，使用RFID液压控制模块，可实现远程开启与关闭。也可以使用符合行业标准的开关工具，或上部完井系统中的插入组件，实现机械式的开启。

经过国际标准化组织(ISO) 28781-V1标准与美国石油学会(API)规范19-V的测试，双向密封机构提供了可靠的井下屏障。当开启时，全通径设计最大限度地扩大了过流面积，提供了与地层之间的流动通道。该球阀可由多种冶金材料制造，从基本的4140钢材到高镍的高级合金。

RFID流量控制阀

Weatherford公司的RFID流量控制装置（ICD）将FloReg控制系统与RFID技术相结合，可在整个水平井筒内均匀分配流入量。ICD还可以减少水或天然气的产出，改善油藏的排水，并加强防砂。将处于关闭状态的单个ICD或一系列ICD下入至指定深度，可在没有干预的情况下按顺序打开这些ICD。

此功能消除了对冲洗管、干预作业、电缆或控制管线的需求，从而减少了完井作业时间与作业风险。该设备可根据客户特定应用进行定制，并通过循环RFID标记、频率调节压力信号、计时器或它们的组合来实现工具的打开。RFID流量控制阀设计时已经考虑到了碎屑、泥浆固体与水泥的影响，因此该设备没有采用弹簧、止回阀或复杂的活塞装置。此外，若是需要任何预充或高灵敏度的活塞室，也不会影响其可靠性。

RFID储层隔离阀

Weatherford的RFID储层隔离阀（RIV）是一种无需干预的屏障装置，可隔离完井段的趾部，从而无需将桥塞坐封于深部井眼，减少了完井作业时间与作业风险。该公司在该工具的设计生产中使用了贯穿式挡板专利技术当远程打开时，挡板可释放出所有碎屑、泥浆固体与水泥，留有一个冲洗孔。为了满足不同环境的作业要求，该工具还具有陶瓷挡板型号可供选择。该工具通过了国际标准化组织（ISO）28781V1的认证，RIV是一种成本效益高、可用于隔离完井系统的安全方法。

RFID RIV采用了坚固耐用的设计，内部作业机构处于流动路径中，但不受碎屑、泥浆固体与水泥的影响。该RIV没有采用弹簧、止回阀或复杂的活塞装置。基于专有的直通挡板技术，当挡板向下打开进入壳体时，内部碎屑都会被释放，从而留下冲洗孔。该挡板提供双向屏障，可对完井系统进行测试并进行水力坐封。该工具还具有陶瓷挡板的型号。当该RIV处于打开状态时，将其下入井中。然后通过预编程的定时器，来循环RFID标记，以关闭RIV。可以通过调频压力特征重新打开该RIV。

Intelligent Completion Packoff Element

Our intelligent completion packoff element is a retrievable and hydraulically set device that provides zonal isolation for completions that require line bypass. With a one-piece body, the packoff element makes it possible to feed multiple lines—for gauges, chemical injection, and other systems—through it in either a workshop or offshore environment.

The Weatherford intelligent completion packoff element (ICE) is a retrievable and hydraulically set multiple control-line bypass that achieves zonal isolation within intelligent well completions. The onepiece body makes it possible to feed multiple lines through the ICE tool in either workshop or offshore environments. The feedthrough capabilities also enable placing gauges and chemical injection systems below the completion isolation system.

Tested in accordance with the International Organization for Standardization (ISO) 14310, the ICE tool provides multiple setting options. Control-line pressure, a mechanical communication sub, or a radio-frequency identification (RFID) enabled communication sub can set the base packer. The ICE tool is released into a retracted position using a straight-pull, shear release.

RFID Optibarrier? Ball Valve

Our Optibarrier ball valve controls wellbore flow. The tubing-mounted, bidirectional ball valve is opened and closed remotely using RFID-enabled hydraulic control modules. It can also be opened mechanically using industrystandard shifting tools or a stinger module in the upper-completion system.

The Weatherford Optibarrier ball valve is a tubing-mounted bidirectional ball valve that can be opened and closed remotely using a radio-frequency identification (RFID) enabled control module. It can also be opened mechanically using industry-standard shifting tools or a stinger module assembled into an upper completion or workstring.

Tested beyond the International Organization for Standardization (ISO) 28781-V1 standards and in accordance with the American Petroleum Institute (API) specification 19-V, the bidirectional sealing mechanism provides a reliable downhole barrier. When open, the fullbore ID maximizes flow area and enables access to the formation. The ball valve can be manufactured in a variety of metallurgies, ranging from basic 4140 to high-nickel premium alloys.

RFID Inflow Control Device

Our RFID inflow control device (ICD) evenly distributes inflow throughout a horizontal wellbore. The ICD also reduces water or gas production, improves reservoir drainage, and enhances sand control. The device is customizable to customer-specific applications and can be opened by either circulating RFID tags, using a frequency modulated pressure signature, timer or a combination of these.

The Weatherford RFID inflow control device (ICD) combines the FloReg? inflow control system with RFID technology to evenly distribute inflow throughout a horizontal wellbore. The ICD, or a series of ICDs, are run closed and then, at depth, sequentially opened with no intervention. This capability eliminates the need for washpipe, intervention services, wires, or control lines, which reduces completion time and risk. The ICD is customizable to customer-specific applications, and it can be opened by either circulating RFID tags, using a frequency modulated pressure signature, timers, or a combination of these.

Designed with debris, mud solids, and cement in mind, the device does not rely on debris-sensitive springs, check valves, or complex? piston arrangements. Further, reliability is not compromised by the need for any pre-charged or well-sensitive piston chambers.

RFID Reservoir Isolation Valve

Our RFID reservoir isolation valve is an interventionless barrier device that isolates the toe of the completion, which eliminates the need for a deep-set plug. Inside the valve, a patented fall-through-flapper provides a bidirectional barrier. When remotely opened, the flapper releases any debris, mud solids, and cement and leaves a flush bore. The tool also features a ceramic flapper option as applicable.

Tool Description

The Weatherford RFID-operated reservoir isolation valve (RIV) is an interventionless barrier device that isolates the toe of the completion, which eliminates the need for a deep-set plug and reduces completion time and risk. Qualified according to the International Organization for Standardization (ISO) 28781 V1, the RIV is a cost-effective and safe means of isolating completion systems.

The robustly constructed RIV is designed with debris, mud solids, and cement in mind; the internal operating mechanism is contained with the flow path. The debris-tolerant RIV does not rely on debrissensitive springs, check valves, or complex piston arrangements.

Built on patented fall-through-flapper technology, any debris fill is relieved and released as the flapper opens down into its housing to leave a flush bore. The flapper also provides a bidirectional barrier against which the completion system can be tested and hydraulically set. The tool also features a ceramic flapper option, as applicable. The RIV is run in the open position and is closed by circulating RFID tags via a preprogrammed timer. The RIV can be reopened by a frequency modulated pressure signature