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The oil and gas industry is rife with highly sensitive processes that require industry-leading instruments to ensure the integrity of data measurement and workplace safety. Pressure sensors used in oil and gas applications such as fracturing and offshore drilling can typically show a pressure range of over 15,000 PSI, which means that specialized pressure transmitters are required. Pressure transmitters for oil and gas drilling not only need to have a high pressure range, but also need to be robust enough to withstand on-site vibrations and harsh operations.

There are some functions in pressure sensors that can help meet the demands of this industry. This blog post will discuss some of these important features. We hope it will be useful to those looking for pressure transmitters in the oil and gas industry:

Hydraulic fracturing

Acidification

Mudlogging

Offshore drilling

High-precision high-voltage range

Hammer or wing joints are typically used in the oil and gas production process to tightly connect the various parts of the pipeline. Manufacturers produce pressure sensors with special hammer joint connectors for these applications, which are called hammer joint pressure transmitters. They are extremely proud of their procurement, product development and product performance, all of which can meet the requirements of the oil and gas industry.

As mentioned above, this is very common for processes with a pressure range higher than 15,000 PSI. Most manufacturers of hammer joint pressure transmitters enable their sensors to withstand pressures up to 20,000 PSI. When choosing a suitable pressure sensor, accuracy is also an important factor. Depending on the process being measured, a score of one percentage point can make a huge difference in capturing potential problems. For example, the Druck PTX661 pressure transmitter has a full-scale accuracy of 0.1% and a pressure range up to 15,000 PSI. The APG 1502I HU hammer joint pressure transmitter has a full-scale accuracy of 0.25% and a pressure range of up to 20,000 PSI. Even within the ultra-high pressure range, it can maintain this full-size accuracy, which makes hammer union pressure transmitters stand out in the competition. It allows operators to make any changes to the process when necessary, preventing work from stopping or equipment from malfunctioning.

A sturdy and reliable design

Process media used in oil and gas applications may have high abrasiveness and corrosiveness. The pressure transmitter needs to be able to maintain its performance under these conditions. Part of the reason why they can achieve this consistency lies in their design approach. Imagine that the various components of a pressure sensor are connected together by bolts. Under high pressure and when handling corrosive liquids, they may split and turn into pressurized projectiles. This is why, for instance, APG made the body of their 2202 HU hammer pressure transmitter fully welded. This also provides an impact resistance level that most pressure sensors cannot match, which is necessary for the rapid installation and disassembly of equipment such as oil drilling platforms.

The wetting materials commonly used in transmitters are very durable alloy metals, such as Hastelloy C22 or nickel alloys. These materials can withstand highly abrasive and corrosive materials and usually have industry certifications, so operators can be confident that their pressure transmitters can withstand harsh acidic gases. For example, APG adopts nickel alloys that comply with NACE MR-01-75 and ISO 15156-3 standards.

In some applications, pressure sensors also need to have intrinsic safety to reduce risks and avoid catastrophic failures. The NOSHOK 628 hammer pressure transmitter complies with the CSA standard and is suitable for equipment in hazardous locations. The Druck PTX661 pressure transmitter is certified by ATEX, IECEx, NEPSI and FM, as well as hazardous zone. When looking for hammer joint pressure transmitters, please check these types of certifications to ensure your process is protected.

Each manufacturer also has its own unique design features, attracting different applications. For instance, Druck's hammer pressure transmitters are equipped with replaceable transmitter inserts, thereby reducing the total cost of ownership. The APG uses large drainage holes, so the protective housing around the electrical connections will not hold water. NOSHOK uses Inconel X-750 diaphragms and connections, which can withstand the harsh chemical composition of unrefined petroleum and provide better protection and expected lifespan for the sensor. ScanSense uses an optional temperature sensor to eliminate long-term signal drift on site.

These high-end pressure transmitters are designed to be as precise and fast as possible so that operators can make important real-time decisions on site. This level of accuracy is partly influenced by drift, lag

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