EXPLORATION • DRILLING • FIELD SERVICES
Horn assesses whether engineers can benefit from his solution by looking at their well design
standards of API cementing equipment, and has many hundreds of field runs to prove reliability. When the latch-in float equipment is used in tandem with our SeaCure Cementing tool, which is a modified bumper sub, we enable a stabbed-in inner string cement job to be performed for casing strings that would typically be cemented by a conventional inner string technique, which requires leaving cement in a shoe-track at the bottom of the casing.” Horn says that this approach has a number of advantages over conventional inner string cementing techniques. “Firstly, there is no remaining cement left in the shoe-track of the casing with SeaCure, which means no cement to drill out on the next drilling run. If under-reamer runs or slimhole runs are planned, an operator will often conduct a dedicated shoe-track clean out run to properly clean out the cement in the shoe-track before drilling ahead, which is no longer necessary if SeaCure Cementing is done.
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“In tandem with this benefit, because a drill pipe wiper dart is used with the system – which lands and locks into the float shoe at the end of the cement job – an immediate casing pressure test can be performed at the end of the cement job, exactly like a classic plug cementing job, except with all of the efficiency benefits of doing an inner string cement job. Tis reduces the risk of developing micro-annuli in the cement, which is well understood to cause long term
integrity concerns for the well, therefore by doing a SeaCure Cement job versus a conventional cement job, the drilling operator recognises immediate efficiency optimisations to its operation, as well as delivering a safer and more reliable well design to minimise the requirement for future interventions to maintain integrity.”
HAPPY CUSTOMERS One of the criticisms levelled at the oil & gas sector is that it can be quite
ENGINEERING EXPERTISE W
hen it comes to deploying the SeacCure Cementing system, Horn’s business model is to firstly identify whether drilling engineers would benefit from the system by looking at their well design with them, and if benefits can be delivered, his firm
then provides all of the hardware to them as well as an offshore operator to run the system. He says: “The offshore operator confirms measurements and calculations with the drilling engineer’s offshore supervision team. The system has no hydraulics, no electronics and is basic dumb steel, so it is as simple as a system possibly can be and very straightforward for the offshore and onshore team to get to grips with.” l
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