完井包:NextTier、ProPetro Electrify 压裂车队

NexTier 和 ProPetro 各自的电动压裂车队正在推出一种通过电气化进行水力压裂的更新、更便宜且更可持续的方法。

随着能源安全问题的日益突出,从运营商到服务公司,业内人士都在问“下一个新能源是 什么 减少资本支出的下一步方法是什么?下一个可以在油田实施的新技术是什么?

所有迹象都表明电气化是解决方案——一种环保的解决方案,可以节省资金并简化过于复杂的操作。

NexTier Oilfield Solutions电力解决方案副总裁 Aaron Hilber告诉 Hart Energy:“我们需要利用一切优势来降低每桶石油的到岸成本,而燃料是其中的重要组成部分。” “我们需要用更便宜的天然气,特别是国产天然气来取代尽可能多的柴油。”

为了满足这些需求,包括 NexTier 和ProPetro Services在内的公司已开始向市场推出其电动压裂船队。NexTier 最近与 Patterson-UTI 合并,是 Emerald Electric Fleet 的所在地。FORCE eFleet 是 ProPetro 对全行业电气化呼吁的回应。

NexTier 和 ProPetro 均以传统柴油机车队为模型打造其电子压裂车队,并配有搅拌机、卡车和数据车。由于电气化,整个压裂过程变得精简、简化且更加安全。

ProPetro 首席执行官 Sam Sledge 告诉 Hart Energy:“电动化的主要前提之一是通过更简化的电动机系统创造更密集的电力输出。” “柴油发动机上可能有数百个甚至数千个移动机械部件,而电动压裂泵上的电动机上可能只有几百个移动部件。”

电动车队的心脏和大脑

ProPetro 和 NexTier 都使用电动搅拌机或 E-Blender(Sledge 称之为“操作的核心”)来制备增产处理中通常使用的浆料和凝胶。两种电子搅拌机都是完全自主的,能够调节和有效计量搅拌机内化学品和成分的流量。其自动化,加上消除手动操作,不仅确保稳定和准确的浴缸液位,而且还减少操作员暴露在噪音和其他环境因素中。

虽然电子搅拌机可能是电动车队的核心,但斯莱奇将数据车称为“运营之雨”。

所有压裂作业均使用数据车,数据车充当操作的物理集中中心。NexTier 和 ProPetro 与传统数据货车的区别在于它们的控制水平。

“它更加精简和数字化。我们实际上控制着 100% 的设备,在这些电力站点上,大约有十几台设备“在压裂现场”,Sledge 说。“我们通过数据车控制每一件设备,如果使用我们的柴油车队,您可以在整个位置的地面上控制其中一些设备。”

数据车向各种设备传播关键信息和控制信号,包括压裂泵、混合器和化学装置。通过以太网连接,系统与不同设备进行通信,以实现油田运营的网络化和集成方法。来自货车的集中数据使操作员能够在货车内舒适地调节速度、打开和关闭以及使用测量工具和传感器。

CNG 领域的优质服务提供商存在市场空白,因此我们设计和建造了自己的压缩站,并配备了自己的 CNG 拖车。Aaron Hilber,NextTier 油田解决方案

在出现问题的情况下,可以从处理站手动操作系统,以确保处理后的流体连续可靠地流动。当密度读数出现差异时,可以停止操作,以便现场技术人员和机械师纠正问题,然后再恢复操作。

虽然 NexTier 和 ProPetro 的数据车(以及它们的整体压裂操作)有相似之处,但它们的不同之处在于它们的电力系统。

完全可定制与完全控制

ProPetro 的 FORCE 车队的配电装置是可定制且可远程操作的装置,能够与标准化供应侧配电无缝集成。

NexTier 的减压系统 (PRS) 是一种独特的、正在申请专利的装置,可以以受控方式调节来自拖车的高压气体。该系统满足了行业对可靠、高效的天然气供应日益增长的需求,特别是随着越来越多的车队转向使用天然气而不是柴油。

“压裂船队的价值取决于可靠的天然气供应,以便我们能够取代尽可能多的柴油,”希尔伯说。“CNG 领域的优质服务提供商存在市场空白,因此我们设计和建造了自己的压缩站,并配备了自己的 CNG 拖车。”

PRS 是市场上同类产品中最大的系统,拥有每天 8,000 标准立方英尺的流量,同时还能与现场气体无缝混合。其与井场的集成包括连接蒸汽拖车以将气体输送到压裂泵,优化泵送过程中天然气和柴油的使用。这有助于降低燃料成本,这是降低每桶石油总到岸成本的关键因素。

“使用一支机队,您每年可以节省 1000 万至 3000 万美元。这相当于压裂工作仅在燃料节省方面就有 10% 到 20% 的折扣。因此,这一转变背后的原因是主要针对我们客户的经济和财务激励。但我们也受益,因为除了其他好处外,我们使用的设备运行成本更低,功率密度更大,”斯莱奇说。

完井包:NextTier、ProPetro Electrify 压裂车队
Sam Sledge,ProPetro Services 首席执行官(来源:ProPetro

希尔伯说,除了降低成本之外,行业需要这项技术还有几个原因,尤其是可靠性。随着电动压裂船队和完全依赖天然气的压裂船队变得越来越普遍,天然气供应的一致性和可靠性变得至关重要。该公司提供的设备和服务可确保稳定可靠的气流,这对于压裂作业的成功至关重要。

“这种特定设备很重要,因为随着行业推出更多电动压裂车队和仅使用天然气而不使用柴油的车队,天然气的可靠性变得越来越重要,”希尔伯说。“我们的整个压裂作业取决于气体的可靠性,因此拥有始终有可用气体的设备和服务至关重要。”

展望未来,两家公司的目标是继续将各自的压裂车队转变为电动车队,ProPetro 希望成为 100% 天然气动力的车队。NexTier 希望将其业务扩展到二叠纪盆地以外的盆地,例如德克萨斯州东部和马塞勒斯页岩,以满足石油和天然气行业不断变化的需求。

完井包:NextTier、ProPetro Electrify 压裂车队
NexTier Data Van 使用 Mobile Data Technologies 的软件,可以从车辆上完全控制压裂作业(来源:Hart Energy

Sledge 表示,ProPetro 的电力解决方案代表了石油和天然气行业的重大飞跃,不仅有望节省成本,而且还能提高天然气供应的可靠性,这是该行业未来可持续发展和成功的重要组合。

“对于我们的部门和工业继续过渡到这些类型的技术,电气化至关重要......但如果它对我们的工业很重要,那么它对我们的国家和美国的能源安全也很重要, “他说。“我认为[电气化]只会加强我们对国家和世界的价值主张,因为我们比地球上任何其他地方都更高效地生产能源,并且碳足迹更低。”

原文链接/hartenergy

The Completions Package: NextTier, ProPetro Electrify Frac Fleets

NexTier and ProPetro’s respective electric frac fleets are touting a newer, cheaper and more sustainable approach to hydraulic fracturing through electrification.

With the problem of energy security growing, everyone in the industry—from operators to service companies—has been asking “What’s next?” What’s the next new power source? What’s the next way to reduce capex? What’s the next new technology that can be implemented in the oil patch?

All signs point to electrification as the answer—an environmentally friendly solution that can save money and simplify overly complex operations.

“We need to take every advantage we can to lower the landed costs of a barrel of oil, and fuel is a big part of the equation,” Aaron Hilber, vice president of power solutions at NexTier Oilfield Solutions told Hart Energy. “So as much diesel as we can displace with cheaper natural gas, especially domestically produced natural gas, we need to do that.”

To meet these needs, companies including NexTier and ProPetro Services have begun to introduce their electric frac fleets to the market. NexTier, which recently merged with Patterson-UTI, is home to the Emerald Electric Fleet. The FORCE eFleet is ProPetro’s response to the industry-wide call for electrification.

Both NexTier and ProPetro model their electronic frac fleets after traditional diesel fleets, complete with blenders, trucks and data vans. The entire fracturing process has been streamlined, simplified and made safer due to electrification.

“One of the main premises of going electric is creating a more dense power output through a more simplified system with electric motors,” Sam Sledge, CEO of ProPetro, told Hart Energy. “You might have hundreds, if not thousands, of moving mechanical parts on a diesel engine and you might have just a couple hundred moving parts on an electric motor on an electric frac pump.”

Hearts and brains of electric fleets

Both ProPetro and NexTier use an electric blender, or E-Blender, which is what Sledge calls “the heart of the operation” to prepare the slurries and gels typically used in stimulation treatments. Both E-Blenders are fully autonomous and able to regulate and effectively meter the flow of chemicals and ingredients within the blender. Its automation, coupled with the elimination of manual operations, not only ensures steady and accurate tub levels but also reduces operator exposure to noise and other environmental elements.

And while the E-Blender may be the heart of the electric fleet, Sledge calls the data van the “brain of the operation.”

All frac jobs use data vans, which act as a physical centralized hub for the operation. What sets NexTier and ProPetro’s apart from traditional data vans is the level of control they command.

“It's a lot more streamlined and digital. We're controlling literally 100% of the equipment, which on these electric locations is about a dozen pieces of equipment — on site at the frac location,” Sledge said. “We're controlling every single one of those pieces of equipment from the data van where with our diesel fleets, you would've had some of that equipment controlled out on the ground across the location.”

The data van disseminates crucial information and control signals to various equipment, including frac pumps, blenders and chemical units. Through an ethernet connection, the system communicates with different equipment for a networked and integrated approach to oilfield operations. The centralized data from the van allows operators to throttle things up and down, turn things on and off and use measurement tools and sensors all from the comfort of the van.

There is a gap in the market for a premium service provider in the CNG space, so we designed and built our own compression stations and brought our own CNG trailers. Aaron Hilber, NextTier Oilfield Solutions

In scenarios where issues arise, the system can be manually operated from the treater station to ensure a continuous and reliable flow of processed fluid. When discrepancies in density readings occur, the operation can be halted for on-site technicians and mechanics to rectify the problem before resuming operations.

And while both NexTier and ProPetro’s data vans (and their frac operations as a whole) have similarities, where they differ is their power systems.

Fully customizable versus full control

ProPetro’s FORCE fleet’s power distribution unit is a customizable and remotely operable unit able to seamlessly integrate with standardized supply side power distribution.

NexTier’s Pressure Reduction System (PRS) is a unique, patent-pending device that regulates high-pressure gas from trailers in a controlled manner. This system addresses the industry's growing demand for a reliable and efficient gas supply, especially as more fleets transition towards using natural gas instead of diesel.

“The value of a frac fleet is dependent on having a reliable gas supply so that we can displace as much diesel as possible,” Hilber said. “There is a gap in the market for a premium service provider in the CNG space, so we designed and built our own compression stations and brought our own CNG trailers.”

The PRS, the largest system of its kind on the market, boasts the capability to flow 8,000 scf/d while also blending seamlessly with field gas. Its integration into well sites involves connecting steam trailers to deliver gas to frac pumps, optimizing the use of gas and diesel in the pumping process. This contributes to lowering fuel costs, a crucial factor in reducing the overall landed cost per barrel of oil.

“You can save yourselves upwards of maybe between $10 [million] and $30 million a year on one fleet. And that can equate to a 10% to 20% discount to a frac job just in fuel savings. So what’s behind this transition is the economic and financial incentives for mainly our customers. But we also benefit because we are using equipment that's cheaper to operate and is more power dense, in addition to other benefits,” Sledge said.

Completions Package: NextTier, ProPetro Electrify Frac Fleets
Sam Sledge, CEO of ProPetro Services (Source: ProPetro)

Aside from reducing costs, the industry needs this technology for several reasons, but especially for reliability, Hilber said. As electric frac fleets and those relying solely on natural gas become more prevalent, the consistency and dependability of gas supply has become paramount. The equipment and services offered by the company ensure a steady and reliable flow of gas, crucial for the success of frac operations.

“This specific equipment matters because the reliability of gas is becoming more and more critical as the industry brings out more electric frac fleets and fleets that use only natural gas and not diesel,” Hilber said. “Your whole frac operation is dependent on the reliability of the gas, so having equipment and services that always have gas available is critical.”

Looking ahead, both companies aim to continue to transition their respective fracturing fleets to electric fleets, with ProPetro hoping to become 100% natural gas powered. NexTier looks to expand its operations geographically to basins beyond the Permian Basin such as East Texas and the Marcellus Shale to meet the ever-evolving needs of the oil and gas industry.

Completions Package: NextTier, ProPetro Electrify Frac Fleets
The NexTier Data Van, which utilizes software from Mobile Data Technologies, allows the frac job to be controlled completely from the van (Source: Hart Energy)

Sledge said ProPetro’s power solution represents a significant leap forward in the oil and gas sector, promising not only cost savings but also enhanced reliability in gas supply—an essential combination for the industry's future sustainability and success.

“For our sector and our industry to continue to transition into these types of technologies, electrification is of the utmost importance... But if it's important for our industry, it's important for our country and our energy security here in the United States,” he said. “I think [electrification] is only strengthening our value proposition to our country and to the world as we are manufacturing energy more efficiently and with a lower carbon footprint than anywhere else on earth.”