Well-SENSE的新型数据采集技术又一次推进了降本增效前进的步伐！
来自 |?Well-SENSE
编译 | TOM 惊蛰
在阿布扎比国际石油博览会上，Well-SENSE公司宣布推出其最新基于光纤技术的井筒干预（FLI）服务，命名为为Active FLI。
Active FLI建立在Well-SENSE井下光纤数据采集系统基础之上，另外增加了一系列离散测量设备。这些传感器包括单点温度与压力传感器，以及基于井深的套管接箍定位器。将这些工具分布在FLI探头中，下入井中捕获数据，沿着FLI在井中部署的光纤来进行分布式测量。
单点数据与分布式数据的结合可显著提高井筒智能化能力，并通过不同的数据集，精确定位、验证以及量化井筒中发生的事件。目前，该功能将FLI的应用扩展至油井整个生命周期内，覆盖各种作业，包括完井验证、产量曲线分析或井筒完整性调查等。
Well-SENSE首席执行官Craig Feherty表示：“我们很高兴推出我们最新的FLI技术，今年早些时候，我们获得了沙特阿美能源风险投资公司（SAEV）的大量投资，这使我们能够进一步开发FLI，并将这项技术实现商业化应用。”
Feherty说：“Active FLI是市场上唯一将分布式与单点数据采集结合在低成本井下传感系统。该技术能够获得更加丰富的图景，就像是将3D彩色视频与黑白照片（常规技术）进行比较。除此之外，Active FLI为即插即用式，简单易用，用户界面友好，用户最终可获得一个低风险、低成本的系统，可以清晰地洞察油井生命周期中的每个井下情况。”
FLI是一套完整的井干预系统，不依赖于电缆、钢丝绳或连续油管进行部署。它将裸露的光纤直接下入至油气井中，以获取高清晰度的实时数据。光纤的长度就像一个传感器，随着时间的推移，从上到下提供井的完整温度、压力与声波剖面。
光纤、探头与所有井下电子设备都是一次性使用的，在项目完成后留在井下溶解。控制简单、即插即用，再加上该技术的可自行降解特性，意味着井干预造成的停产时间、井场地面空间紧张、人员需求以及相关的成本与风险都可以忽略不计。
突破常规
Well-Sense公司的FLI技术是一种独特的创新方法，利用一次性光纤从油气井中收集诊断数据。FLI能够快速、经济有效地在油井中安装一条临时光纤，以便沿着光纤实时执行整个井段的分布式数据测量。FLI采用裸露光纤，可实现一次性使用，因为其使用后可溶于井内环境。
该技术可获取温度、压力以及声波数据，再加上主动单点测量与实时高清视频，开发商能够更详细的单井或油田信息。FLI的牵引系统允许该技术部署至以前认为没有经济效益的大斜度井中。通过这种便捷、快速、低成本的油井监测，油气采收知识的获取效率将大幅提高。
FLI是全新的智能井干预技术。除了传统的电缆、钢丝绳或连续油管井干预之外，该技术还具有第四种功能，能够替代传统电缆或连续油管等干预作业，显著降低成本。由于其结构紧凑，易于部署，大幅缩短安装时间，减少了该作业所需的设备与人员。
工作方式
光纤缠绕在FLI探头的内部绕线轴上，将探头投入井中，探头自由下落，不受张力限制地解开光纤。在测量过程中，光纤利用连续的激光束，根据周围环境变化获得数据。例如，如果正在测量声波剖面，声源则会发出声波，然后测量声压震荡频率的变化。光纤能够在一段时间内，沿着光纤的长度，实时测量数据，将数据传输至地面。FLI技术与众不同之处在于，光纤没有封装在井干预工具中，而是直接裸露下入井筒。当数据获取完成，无需将其回收。在井中可自行降解，不会堵塞井眼。这是目前业内唯一可用于油气井光纤测量的一次性方法。
FLI大幅降低了作业时间、空间、运输成本，无需利用干预工具（如连续油管或电缆），即可将光纤下入至井中。利用皮卡车或一个小集装箱即可将FLI组件运送到现场，在一小时内完成下入前的准备工作，相比之下，装配钢丝电缆需要大约10个小时。同时，该技术发生卡钻的风险更小，设备丢失的风险更小，且不会在井中留有遗留物。不会造成拆卸设备带来的非生产时间。
Well-SENSE has announced the launch of its latest FiberLine Intervention (FLI) development, ‘Active FLI’ at ADIPEC.
Active FLI builds on the capability of Well-SENSE’s fiber-optic downhole data acquisition system with the addition of a range of discrete measurement devices. These include single-point temperature and pressure sensors, with the addition of a casing collar locator for depth correlation. The tools are located in the FLI probe to capture measurements as it descends downhole and complement the distributed sensing, which takes place along the length of the fiber-optic lines deployed in the well by FLI.
The combination of single-point and distributed data provides enhanced well intelligence and allows events occurring in the well to be precisely located, verified and quantified via different data sets. This capability extends the use of FLI to a wide variety of applications across the complete lifecycle of the well such as completion verification, production profiling or integrity investigation.
“We are delighted to be launching our latest FLI technology at ADIPEC,” Craig Feherty, Well-SENSE CEO, said. “Earlier this year we secured significant investment from Saudi Aramco Energy Ventures (SAEV) which has allowed us to further develop FLI and is supporting the commercialization process.”
“Active FLI is the only downhole-sensing system on the market to combine distributed and single-point data acquisition in one low-cost disposable tool,” Mr Feherty said. “This creates a much richer picture; it’s almost like comparing a 3D color video to a black and white photograph. Add to this, our simple, user-friendly plug and play deployment system and you end up with a customer-controlled, low-risk, low-cost system which can give you a clear insight into every downhole scenario across the lifecycle of the well.”
FLI is a complete intervention system and does not rely on wireline, slickline, or coiled tubing for deployment. It places bare fiber-optic lines into oil and gas wells to capture high-definition, real-time data. The length of the fiber acts as a sensor and delivers a complete temperature, pressure and acoustic profile of the well from top to bottom, simultaneously, over time.
The fiber, probe and all downhole electronics are single use and disposable, being left in the well to dissolve following project completion. The user-friendly, customer-operated plug and play system, combined with the disposable nature of the technology, means that intervention downtime, wellsite footprint, personnel requirement and associated cost and risk are all negligible.
Game Changing Technology
FiberLine Intervention (FLI) from Well-Sense is a unique and innovative method of collecting diagnostic data from oil and gas wells using disposable fiber optics. FLI will quickly and cost-effectively install a temporary fiber optic line into a well for the purposes of performing distributed data sensing over its entire length in real time. FLI deploys a bare line and is completely disposable, being designed to dissolve in the well environment after use.
Temperature, pressure and acoustic data can be captured, plus active single point measurements and live HD video, providing operators with a detailed understanding of a single well or field of wells. FLI’s tractor conveyancing permits tools to be deployed to depths and deviations previously thought uneconomical. The increase in understanding from this type of accessible, fast, low cost well monitoring will lead to much more efficient recovery of hydrocarbons.
THE FOURTH INTERVENTION FLI is an entirely new discipline for intelligent well intervention. It provides clients with a fourth and alternative option over conventional wireline, slickline or coiled tubing intervention at a significantly reduced cost. Being extremely compact, simple to deploy and disposable, the time to rig up and down and the amount of equipment and personnel required to perform the job is drastically reduced.
FiberLine Intervention enables cost effective: > Distributed fiber optic sensing > Production logging > High-bandwidth downhole sensing
FiberLine Intervention reduces: > Health, safety and environment risks > Personnel and equipment on wellsite
HOW DOES FLI WORK?
The FLI probe, containing the fiber optic line on an internal spool, is dropped down the vertical section of the well, unspooling the line without tension as it free falls downhole. During the survey, the fiber line uses a continuous beam of laser light which encounters interference at points along its length, depending on environmental factors. For example, if it is measuring acoustic profiles, a sound will be generated at source and the changes in soundwave pressure frequency will be measured. Our fiber optic lines can deliver real-time measurements, over their full length, over a period of time and data is captured by a recording device at the surface. FLI is different to other fiber optic measurement devices as it is run into the well as bare line, without being encased within an intervention media. Once it is run and has delivered the necessary data it is disposed of in the well and does not result in an obstruction. This is the only fiber optic sensing method for oil and gas wells that is disposable.
FLI provides huge time, space, transport and cost savings, removing the need for intervention media such as coiled tubing or wireline to deliver the fiber into the well and its associated surface spooling equipment and personnel, complicated rigging up and down and associated non-productive time.
The FLI kit can be delivered to site on the back of a pick up truck, or in a small container offshore, and be ready to run in less than an hour compared to around ten hours to rig up slickline. There is less risk of getting stuck in hole, less risk of lost equipment and no lost in hole charges. There is no NPT associated with rigging down.