Case Studies


Salt Spray at the Bay

“I replaced these 4 stud/nut sets yesterday. They were installed new in October 2016. The socket fit perfectly and they broke easily. BTW: no cleaning or washing was ever done other than rain”

— Well Owner and Turnaround Expert Bill Sparks

As far as Bill Sparks is concerned, data doesn’t mean anything if your fastener isn’t field-tested. We met Bill at a trade show some time back, and when we started telling him all about our process and our FELT Test he stopped us in our tracks. “Give me something to put out on my rig. If it works, you’ll hear from me again.” So we did.

Bill works in some tough conditions. His small well in Corpus Christi Bay only sits about 7-10 feet off the water line, so the salt fog and salt spray attacks his well 24/7. In an environment like that, red rust corrosion is inevitable.

Bill outfits his well heads with Grayloc clamps. When surface rust starts to build up on his rig, it makes it difficult to get a wrench on his Doxsteel Fasteners. But when he brushes away the surface corrosion and can get to his bolts, the studs still turn. The Nickel-Cobalt coating maintains the integrity of the threads and he is able to remove them quickly without grinding and cutting the bolt, a dangerous procedure which requires complete shutdown and a coast guard permit for open flame.

Update 2019 message from Bill:

Carlos, my apologies but scheduling boats intersecting with calm winds has been tough.

I replaced these 4 doxsteel stud/nut sets yesterday. They were installed new in October 2016.

The socket fit perfectly and they broke easily. I will get the bolts to you but I am out of town for a few weeks.

Be well, Bill

BTW: no cleaning or washing was ever done other that rain.

– – – – – – – – – – – – – –

We have been working since 2011 on a real well that is 7 feet above the water, it is a nest to seagulls and waves cover the well many times during the year. Perfect place to test our doxsteel fasteners.

In the picture from 2011, you can see me (NO gray hair)! Jose Hernandez (No Gray Hair), Jim Huguenard (Hair) and Bill Sparks!

FYI: Aged Doxsteel Fasteners with Seagull sh.. smell amazing after a few weeks in Bill’s truck!!

Our bolts DON’T Seize!!!

quote“Nothing is going to last forever in a saltwater environment. It’s just not. So I’m going to go with the bolt that lasts the longest. If you’re 7ft off the water line with wellhead bolts on a fixed platform in the Gulf of Mexico, Doxsteel is the way to go.”

— Well Owner and Turnaround Expert Bill Sparks


Specifications are everything

“Before the Chief Procurement Office, we made purchasing decisions based on price. We started having a lot of trouble servicing our equipment because they were creating these galvanic parts that were very difficult to disassemble. Corrosion was costing us a lot of money.”

— Procurement Specialist Raul Mendoza

When Raul Mendoza was the Vice President of Procurement Offices for Pemex in Houston, his chief responsibility was developing relationships with suppliers and contractors. He dealt directly with the main source of whatever goods and services Pemex needed around the world, and fulfilled orders as needed. To make sure purchasing was as effective as possible, he established the Pemex Chief Procurement Office, reforming the procurement process to shift the focus from a pure upfront cost basis to a total cost of ownership assessment using international specifications.

After we provided Raul with our research, he purchased some Doxsteel Fasteners to see how they worked. Over time, he began to see dramatic changes; the cost of service and the time spent in shutdown greatly diminished. Hot bolting was extinct wherever a Doxsteel Fastener was installed. Pemex started to see big returns on their investment due to lower maintenance costs.

Raul wanted to know why Doxsteel was making such a cost savings difference. He discovered that we were the only supplier that could back up our bolts with API 20E and ASTM B994 specifications. This compliance helped us provide an unmatched level of quality to our customers.

That was all Raul needed to see. From that point forward, Pemex would move toward fasteners that complied with ASTM B994 and API 20E specifications.To this day, any time a platform needs turnaround operations, Pemex uses Doxsteel Fasteners.

quote“I wouldn’t be able to give you a number, but I can tell you that before Doxsteel, Pemex was spending around 40% of each project in decommissioning, and ever since Pemex started using Doxsteel that number has reduced to something like 18 or 15%. It’s very impressive.”

— Procurement Specialist Raul Mendoza


Technical Merit

“I hold myself to a high standard. If I said I knew a lot about it, I would know everything. If I said I don’t know anything, I would probably still know more than the next guy. I just want to be technically merited.”

— Corrosion Expert Charlie Speed, NACE New Orleans

Charlie Speed is a respected authority when it comes to corrosion. Through his long career at oil companies both major and minor, he’s written specifications that have helped control downtime and protected workers in the field. If anyone could tell us something about how Doxsteel Fasteners would stand up to corrosion, it was Charlie. So we asked him to take a look at our bolts and tell us what he saw.

Charlie describes a company’s fastener needs with three levels of application: low risk, medium risk, and high risk of corrosion. Low risk applications are not exposed to salt or acid fog environments and don’t require heavy protection. Medium risk applications battle corrosion factors but are not used for critical functions. High risk applications are the most critically necessary bolts, from topside to subsea, and have the facility’s entire operation resting on their shoulders.

Charlie is careful to note that his evaluation is still ongoing, but early results indicate that Doxsteel Fasteners pay for themselves in cost savings for high risk applications. For him, the ASTM and API 20E specifications let him know that our bolts are backed up by the standards of the future. He’s seen our tests, and his experience in electroplating gives him confidence in our process. In critical operations, Doxsteel Fasteners meet every need.

quote“Every drilling well has a blowout preventer on it with a bunch of flanges and crossovers that go down into the water. Those are the fasteners that are the most important, and that’s where I think the Doxsteel can come in. It’s a high safety-critical bolt. The jury’s still out on whether or not it will work a long time, but I have a feeling that it will.”

— Corrosion Expert Charlie Speed, NACE New Orleans


Standing up to the environment

“I’ve been using it in some very hostile environments, underneath the platforms, that sort of thing where you get a lot of salt spray, high humidity, chemicals that are still on the platform usually drip down to that level.”

— Private Consultant Tom Haupman

Tom Haupman discovered Doxsteel Fasteners when he was looking for something that would outlast his underperforming bolts. The industry standard bolts he was using from the usual suppliers were seizing after only six months out in the field, and often required his turnaround operations to resort to hot bolting as the solution for costly downtime. Unable to sustain this level of unreliable bolt performance, he installed Doxsteel Fasteners underneath his company’s floating platform in the Gulf of Mexico, right in the thick of a harsh salt spray environment.

That was more than a year ago, and his Doxsteel Fasteners haven’t let him down. They’re standing up to the environment just as expected. Only slight discoloration gives him any indication that the fasteners have been working in punishing Gulf conditions for an entire year. The large quantities of red rust that he used to see on his bolts are nowhere to be found.

quote“I haven’t had them in use long enough to say they’ve lasted long term, but I think my Doxsteel Fasteners will do great. They’ve already lasted twice as long as my old bolts, so I’m more than happy with what I have so far. Doxsteel currently makes up about 1-2% of our platform’s fasteners, but we’re looking to increase that going forward.”

— Private Consultant Tom Haupman


A History of Service

“Offshore bolting corrosion has been a problem since the 1950’s. There’s never really been a good solution.”

— Jim Burk, Former BP Senior Materials Corrosion Expert and Technical Authority; Committee Member, API; Bolting Task Group, API

Many of the materials that Jim Burk has recommended in his 46 year career were originally designed for military applications. The carrier-based operations of the Navy and Air Force deal with similar environments to those of offshore platforms, and their thorough testing and implementation is a solid proving ground for new technology. From Jim’s perspective, the best coating solutions have their origins in military service.

When we showed Jim our Nickel-Cobalt coating, he was immediately attracted to its military history. When he saw our electroplating process and how we are able to calculate our fasteners’ torque values, he was impressed by our consistent control of every manufacturing variable. And when he saw how hard it is for our fasteners to corrode, he was excited about how much Doxsteel Fasteners could save his customers time, money, and lives.

The one feature that piqued his interest more than any other was how our process protected against hydrogen embrittlement. Jim knows like everybody else that catastrophic drilling equipment failures have been helped along by brittle bolts in the past, so he’s been on the lookout for a fastener that is as free of hydrogen as possible. When he discovered that our process doesn’t induce hydrogen, he finally found the fastener he was looking for.

Jim now recommends Doxsteel Fasteners to all of his clients. When they ask him questions about our bolts, he is quick to list his favorite features. But as far as he’s concerned, the biggest selling point is our technology’s esteemed history of military service.

quote“Good science and good technology usually have a delay to get out into field applications. Sometimes it can be five years, sometimes it can be 25 years. It just takes someone to identify a problem, see a need, and look around for a solution. That’s what Doxsteel has done. This isn’t snake oil and fairy dust. It’s based on real science and it works.”

— Jim Burk, Former BP Senior Materials Corrosion Expert and Technical Authority; Committee Member, API; Bolting Task Group, API

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    Salt Spray at the Bay.

    “The way I see it, there are applications for everything. I don’t rule anything out when it comes to finding the right tool for the job.”

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