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EyebrowProduction 17H hot stab mounted on an ROVs porch. (Left) A cut through view of a through bore connector. (Right) A connector prior to

Photo from Reaching Ultra.

Photo from SECC.

being fully mated volatile weather, resulting in vessels correctly inferred that this type of work community and ancillary participants, would be conducted in the future from have not only technically addressed having to return to dock while condi- tions subside.

a vessel. such challenges and obstacles, but have equally, as demonstrated above,

It is imperative to highlight that once From a mating standpoint, through a vessel has disconnected during harsh bore connectors work similar to 17H developed innovative techniques and weather—and operations are closed— hot stabs, in that they require mating unconventional technologies to safely and properly execute in an open water that all topside to subsea conduits be a male (This end attaches to a coiled recovered in a controlled and methodi- tubing line) to a female mating end that setting. The result: tripling the depth of projects in a span of fve years, while cal manner. In addition, all conduits and is located on a pump in port on a rigless furthering the proof of concept of rig- associated equipment must be able—by kit. In addition, through bore connec- (3) less technology . design—to withstand volatile recov- tors and 17H hot stabs greatly differ, ery conditions until they can be safely since fuid pumped through the former

Works cited brought above the water line, or to a pre- is measured in barrels per minute, while determined safe zone. Failing to execute the latter’s fow rate is measured in 1. Goodfellow, Ron. Underwater the aforementioned can cause the dis- gallons per minute. Additionally, said Engineering. Tulsa : The Petroleum connected conduits to crash or become connectors are specifcally engineered Publishing Company, 1977. entangled. A more severe scenario is to mechanically lock the male (stab) 0-87814-065-4.

one where conduits become intertwined within the female (bore), and require an 2. Subsea Experienced Gained at with subsea assets. For this reason, hav- external trigger (weak link) to unlock Zakum. Ron Goodfellow, Alan Webb. ing a safety procedure/protocol in place the male end. Dallas, Texas : Society of Petroleum for the immediate spooling up/recovery Application-wise, through bore con- Engineers, 1974.

of conduits, during anomalous weather, nectors are conducive for acidizing 3. Myths And Misperceptions is of high beneft. wells where large volumes of chemicals/ About RLWI. Bevan Morrison, Ole cocktails need to be introduced in to a Eddie Karlsen. Houston : Atlantic

Resume work well, to reverse their decline in produc- Communications, 2013.

The need to immediately resume work tion. However, through bore connectors after severe weather passes was an addi- can also facilitate dewatering, fushing, Fernando (2) tional recommendation for the future . abandoning pipelines, placing cement Hernandez is the

At present, this is achieved by remating plugs, and pumping of kill fuids to plug subsea technical the previously mentioned kick off junc- and abandon (P&A) a well – without the advisor at Reaching tion plates and through bore connectors. use of a rig. Ultra. Hernandez

This section, will focus on the latter, as speakings three

Conclusion they enable the execution of more than languages and has

The future of rigless intervention just wireline work, and facilitate com- extensive feld technology, post-Zakum, will con- municating with a well in the absence experience in the ROV tooling, auto- tinue to have inherited challenges and of well control equipment, such as a mated controls, subsea and well

BOP, when acidizing wells: the authors obstacles. Notwithstanding, the rigless intervention sectors.

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