Coiled tubing

The first application of coiled tubing (CT) occurred during WWII in a project named PLUTO (pipeline under the ocean). It involved the placement of a continuous pipeline on the seafloor across the English Channel. The pipeline was constructed using smaller individual sections of tubing welded together coiled into a large spool of continuous tubing. Though the project had limited success, it set the stage for further exploration into this new technology. Industry professionals pursed the development of CT with the hopes of it becoming an effective intervention tool for safe and effective work-over operations on wells. By 1962, the California Oil Company and Bowen Tools reached this goal and became the first company to successfully develop the…

Coiled tubing unit consists of steel tubing and reel, injector head, control cabin, and power pack. The cost of the trailer, and the entire unit ranges from $1.2 to $ 2.5 million. The breakdown of the coiled tubing unit cost is shown in Table 1. In addition, coiled tubing system includes other equipment such as double pumper, double pumper tractor, nitrogen unit, crane, hoses, pump iron, two wet-kit tractors, and coiled tubing pipe, which bring the total cost of the coil tubing system to $4.5- 5…

The difference between the variable in the control and the experimental is the variable that is being tested. In this experiment the Variables Control Group Experimental Group Iodine Time Amount of Iodine Starch Solution Starch solution Temperature of water Temperature of water Dialysis tubing Dialysis tubing Beaker Beaker Water water Time Table 1: This is the table showing the experimental design. The following is a set of step-by-step instructions for this experiment. 1. Cut 1 piece…

Observing Osmosis INTRODUCTION Osmosis is the “diffusion of water across a selectively permeable membrane” (Raven et al. G-16). In this experiment, dialysis tubing was used to mimic the selectively permeable membrane to show what osmosis does when placed in different solutes. We filled dialysis tubes fill with different percentages of solute and placed them in beakers full of a different solute. Through this experiment, I saw what happens when the solution becomes hypertonic, hypotonic, and…

As mentioned above, F horns produce a more pure sound that one would generally associate with the French Horn. While the F horn is more pleasant sounding, the Bb horn is more secure when playing in the higher register making it easier for a player to play the notes. For this reason, the best instrument for a French Horn player is a Double Horn, because allows the best combination of tuning and accuracy across the scale. A double horn is, as the name suggests, two single horns put into one, with…

that I’ve gone to this school for years. It feels good knowing I get to finally be a fifth grader and rule the school. I walk down the long hallway leading my parents to a door that has a piece of paper with ‘INSTRUMENT TRY-OUT’ written on it. After a few minutes which seem like hours another pair of parents and a girl a little taller than me walks out with a small black box. I can’t wait to see what I get to leave with. Mr. Makinster, my future band director, walks out shortly after and invites…