... the pipe wall thickness and the outer material's acoustic impedance. While the algorithms themselves are public, no openly available software implementations are available. Therefore, we have developed an open-source software toolbox called Pyintegrity implementing many of these algorithms. In this article...

... at various stages. Initially, we image before placing bismuth where we examine the cement and rock for existing flaws, like voids and cracks, right after the cement cures. Next, we expose the sample to 160°C and 60bar with water inside the pipe to check whether the annulus cement can withstand the testing...

... that settled barite adheres to casing and formation. The initial experimental result, on simple water base fluid, show that settled barite could hold pressure slightly higher than its hydrostatic pressure. One should note that these experiments were conducted in long transparent plastic pipes with least...

... platform mechanism well structure enhanced recovery complex reservoir reservoir surveillance wellbore design upstream oil & gas subsidence rate prediction pipe hydraulic fracturing waterflooding fluid dynamics liner compaction valhall structural geology overburden extend well life...

...Integrity design with definition of safety and design factors Establishing the integrity of the infrastructure of a well depends on 2 areas: The loads acting on the infrastructure (the steel) The stress tolerance of the pipe As indicated in Figure 1 , the loads can...

... found a precision tool that satisfied the above criteria: an electrohydraulic e-line pipe-cutting tool. Unforeseen challenges emerged, however, when a ballistic puncher was used prior to cutting. The first attempt to punch made by the ballistic puncher failed to achieve fluid circulation. Luckily...

... Abstract While drilling horizontal sections, an operator experienced tool-joint wear, which in extreme cases was one-sided, necessitating the replacement of many drill-pipes to minimize the risk of drill-string failure. Since there were no observable signs of the wearing process, the strategy...

... coupling, pipe wear, and interaction between cement and aluminum casing. Also the potential use of titanium casing elements can be of interest for selected applications. The primary goals of oil well cementing are achieving proper zonal isolation and anchoring the casing in the well. To evaluate...

... was designed and built to prove up the DMPT advancements, including automated tripping technology using 180-ft stands of drill pipe, running of 180-ft stands of casing and the semi-automatic running of 150-ft risers that will greatly reduce the deployment and recovery time of the SSBOP. Furthermore, the full...

... of the new ellipse, including increased accuracy. Results help clarify many questions about the new API collapse equations, namely where they come from and how to use them. Upstream Oil & Gas axial stress pipe collapse resistance annular pressure drilling strength api collapse equation...

... of companies. The new system relies on using two concentric drill pipes in which the drilling fluid is pumped through the annulus between the inner and outer pipes, passes through a conventional Bottom Hole Assembly (BHA), carries cutting from the bit, and is diverted back to the inner pipe by a means of Dual...

... of inner pipe rotation. A practical numerical model is proposed that accurately estimates the annular frictional pressure losses with and without the inner pipe rotation. Experiments are conducted at a 91 ft. long flow loop using various fluids that can be characterized as Yield Power Law (YPL...

... will present several case histories on the subject of mechanical pipe cutting on electric line (e-line) as well as the operational steps selected to make the pipe cuts. A description of a new pipe cutting tool together with lessons learned to improve future operations will also be discussed. Methods...

... The flow velocity is defined as CTFV when V Cpipe = V c , which gives Eq. 1 . Larsen defines the cuttings concentration, C conc , as the concentration of cuttings in the pipe at the CTFV. I.e. if the cuttings concentration is higher, cuttings bed will start to form in the pipe. Larsen...

... have the capability to reduce drill times by 20-25% through reduction of flat times, increased tripping speeds by use of true automation, running 180ft stands of drill pipe, running 22″ 180ft casing in open water, running of 150ft risers, dual rotary hang-off tables and doing as much as possible off...

... drilling side pipe DMPT deck space Upstream Oil & Gas control system manipulator automation Drilling Equipment riser operation connection time safety work deck society of petroleum engineers new approach drill ship drill floor automate drill pipe Introduction...