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压裂全面监测 作业状况了然于胸-石油圈

所在地区: 河南-- 发布日期: 2019年8月16日
建设快讯正文

通过实时监测压裂作业进程与井下状况,可及时有效的更改作业策略,改善作业结果。

编译:惊蛰

近日,Deep Imaging宣布了业内首个,也是唯一可在完井作业中,实时跟踪流体泵入至井筒与裂缝尖端的解决方案。利用该技术,油气开发商商可以验证设计与模拟模型,确认有效压裂段,同时还可识别、修复或避免出现问题的压裂段。

在当前的页岩开发中,美国油气行业面临产量不足的潜在问题。开发页岩的主流方法带来了好坏参半的结果。以更小的井间距钻出更多的井,虽然降低了钻井作业成本,但许多新井的产量却比预期低了30%。

但棘手的是,业内只能根据有限的数据做出非常复杂的作业决策。如果没有合适的仪器来观察完井作业中发生的情况,作业人员将会遭受压裂井间干扰,而且无法识别出固井质量差、桥塞失效以及密封不佳等情况,这些都会使开发商错失地下深埋的宝藏。若具备实时查看压裂作业的能力,作业人员即可真正的优化整个油田的开发。

实时流体跟踪有助于减少浪费,提高产量。在单个压裂段的成本上,这种地面实施的技术很快就能收到回报,而且获益良多,尤其在拉链式压裂中,一个段没有“闭合”,就意味着高达30%的储层尚未开发。一个开发项目的预计销售额为5亿美元,作业者利用流体跟踪技术可将这1.5亿美元牢牢抓在手里,否则这些储量将会遗留在地下。

除了上述优势外,作业者利用该技术还能够确定哪些井下产品与技术会导致问题,从而有助于改进采购计划。若是作业者发现所用某种桥塞的故障率高达20%,则可以寻求更好的供应商。

该技术是目前该领域最先进的压裂诊断工具,可以找出油井问题,提高盈利能力。该公司技术人员表示:“我们可识别出压裂井间干扰、固井质量不佳、桥塞失效等造成油井产量不佳的问题。”

开发商从未能够如此清晰的了解这些情况。通常,业内依靠计算模型来预测压裂液位置,而通过实时跟踪压裂液的位置,作业人员即可获得详细信息。

小工艺 大成效

通常,只需将设备安装在水平段的上方空地,不会进入井场,更不会影响作业。然后,创造出电磁场。随着压裂液的流动,就可以测量这些区域的变化。这是一个非常简单,却又效果显著的工艺。

作业人员或许会问,发射与接收电流的周围是否存在危险,答案是否定的。由于该公司的作业场地是非侵入性的,符合HSE标准,所以可以安全地在该处行走。

在该技术的基础上,作业人员可以获得前所未有的洞察力。实时观察压裂液的位置,就可以找出遇到的问题。为应对低产量,只需加大开采力度的日子已经一去不复返了。如今,作业者需知道问题所在,对症下药,从而提高经济效益。

根据有效的诊断,以识别与解决问题。准确了解压裂液的动态,开发商将对项目的实际情况了如指掌。若作业没有按计划进行,该技术可帮助找到原因,以便有效地进行改正。例如,如果子井产量不佳,将很快知道为什么如此,就可以采取必要的调整或决定继续作业。

项目过程中的问题可能会造成大量资本浪费,并对经济效益造成负面影响。通过尽早解决问题,可以显著提高业绩。流体跟踪诊断的先驱:Deep Imaging是唯一一家能够直接跟踪压裂液注入井内与返排出井筒过程的公司。通过建立地下电磁场,来测量压裂液流动造成的变化。测量结果是直接了然的,消除了猜测带来的误差。

最小的占地面积:该技术的设备安装在水平段上方的空地,远离井场,是业内最轻量化、对环境影响最小的诊断工具,从不进入井场或干扰作业。Jones能源公司的Sam表示:“Deep Imaging使我们能够看到压裂液在完井作业中的位置,以及停泵后压裂液的残留位置。基于这些信息,我们对完井设计进行了重大的变更与优化。”

Deep Imaging today announced the first and only real-time solution for tracking fluid as it’s pumped through the wellbore and out to the fracture tips during a completion job. As a result, upstream companies can validate models and successful stages while identifying, fixing or avoiding problem stages as they occur.

The prevailing approach to developing shale is delivering mixed results. Drilling larger wells more closely together has reduced per unit costs, but many new wells are underperforming production expectations by as much as 30%.

The problem is the industry is acting on limited data to make intricate operating decisions. Without the right instruments to see what is happening during a well completion, operators are experiencing frac hits and are unable to identify poor cement jobs, failed plugs and unclosed zippers, all of which leave valuable resources in the ground. With the ability to see a frac job in real-time, operators can now truly optimize full-field development.

At around the cost of a single frac stage, payback on this surface-based technology is quick and the upside is large, especially considering not “closing” a zipper frac can mean up to 30% of the reservoir is untapped. With projected sales of $500 million from a development project, operators utilizing fluid tracking could capture the $150 million that would otherwise be left behind.

Among other benefits, the technology also enables operators to determine which downhole products and strategies are causing problems to help improve their purchasing plans. If an operator understands they have failures 20% of the time with a certain type of plug, they can find a better provider.

The most advanced frac diagnostic tool in the field

Identify the problems in your wells and improve profitability

We identify frac hits, bad cement, plug failures, open zippers and other problems in your wells that are the cause of under performance.

Clients have never had these insights before. We provide these answers by tracking frac fluid in real-time so you can see where you’re actually placing fluid—and it’s not where typical models predict.

When you know your problems, you can solve them and get back on track. So let’s fix this together.

A SIMPLE PROCESS WITH BIG RESULTS

We setup our project in the meadow over your horizontal, never entering the well site or interfering with operations. We then create electric fields. As the frac fluid moves, we measure the changes to these fields. It’s a surprisingly simple, yet effective process.

People often ask if it’s dangerous to go near where we are injecting and receiving the current—and the answer is no. It’s actually walk-safe as our sites are non-intrusive and HSE friendly.

Insights you’ve never had before

Find out what problems you’re facing as you watch where your frac fluid is going in real-time. Gone are the days of just cranking up the dials in response to poor production. Now you know what the problem is so you can address it with the right solution improving economic returns.

Effective diagnostics to identify and fix problems

With accurate knowledge of where your frac fluid is going you’ll have valuable insights into the reality of your project.

If things aren’t going according to plan, we help you discover why so you can efficiently fix it. For example, if your child wells are underperforming you’ll quickly know why so you can make the necessary adjustments or make the decision to move on.

Problems during a project can create lots of waste with negative economic impact—by fixing problems early you can dramatically improve performance.

Improving your economics

When you can identify the source of a problem early, you can fix it faster. Deep Imaging empowers you to see where the problem is so you can address it, stop wasting resources and time, and save money

Deep Imaging is the only company that directly tracks frac fluid as you inject it into the well and when you pull it back out. We do this by creating a subsurface electric field and measure the changes caused by the moving fluid. Our measurements are direct, eliminating any guesswork.

Our technology lies in the meadow over your horizontal?—it is entirely surface-based and off the pad. We are the lightest, most low-impact diagnostic tool in the industry and never enter the well site or interfere with operations.

“Deep Imaging allowed us to see where the frac fluid went during our completion, and where the fluid remained after the pumps shut off. This led us to make significant design changes and optimizations in our program.” – Sam, Jones Energy

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