Sps Strengthens International Position By Launching Unique Drilling Tool
Posted: 09 February 2005
SPS International, the world's foremost supplier of pre-completion wellbore cleanup tools and services, has enhanced its position in the industry in the drilling tools market with the launch of a revolutionary new circulating valve.
The Centurion Circulating Valve (CCV) extends the capabilities of previous drop-ball or flow-activated circulating valves through a series significant technological advances. It has been developed for use primarily in the drilling phase of a well, when high circulating rates or an alternative flow path is required.
The unique features of the tool promote the effective removal of cuttings beds as well as effective spotting of lost circulation material pills without affecting sensitive components in the BHA.
Flow splitting while drilling is another option which allows optimum flow hydraulics through the bottom hole assembly while maximising hole cleaning and minimising the formation of cuttings beds in extended reach wells. For the first time, therefore, drilling can continue while maximum pump rates clean the well and the bit simultaneously.
The CCV, which is available in three different sizes, is dormant until a steel activating ball lands on a seat and pressure is applied. The same size steel ball is used to close the tool with the same pressure applied as that used to open the tool. While open, a small amount of fluid still flows through the bit, keeping the BHA lubricated. (Wire line access can still be made through the tool in either the open or closed position which is important if a radioactive source has to be retrieved for example.)
Additional applications and benefits include jetting wellheads, BOPs, allowing drill pipe to be pulled dry, displacing fluids at enhanced rates and various wellbore cleanup scenarios.
The tool has already been deployed by several operators worldwide in almost 50 operations.
SPS International chief executive Glynn Williams said: “Although new, the CCV is already having a major impact on the drilling industry and is revolutionising working practices. It is proving to be an extremely popular and effective enhancement to drilling operations
"Previously, drilling had to cease with the drill string picked up off bottom while the annulus was pumped clean of cuttings. In many cases, time had also to be spent waiting for a ball to drop to open a pressure relief valve above the BHA and then still more time waiting for one to close it. The CCV eliminates all this work, thus greatly reducing time spent on the job.”
Posted by Editor Pipeline Magazine
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