Absolute Advantage » Uncategorized

Week 9

Li Zhang — Tue, 27 Jul 2010 20:19:28 +0000

Presentation | July 26, 2010 – Today begins the last week of my stay in Wyoming and second to last week of my internship. I have typed out everything I hope to cover in the presentation and rehearsed several times. Also conducted monte carlo simulations using my projected well data to create some fancy-looking graphs for the presentation.

Presentation | July 27-29, 2010 – Did a run-through of my presentation through a conference call to mentors in Oklahoma City; got plenty of interesting feedback that I will be sure to incorporate into my final presentation. Learned how to fix a broken tire.

Eventually fixed the problems on my presentation and tried to clarify other things. Finalized the executive summary and made sure everything is in an accessible place for the presentation. Flying out to OKC on Saturday!

Week 8

Li Zhang — Tue, 20 Jul 2010 20:26:58 +0000

Installing WCVR System | July 19, 2010 – Installed the Weatherford CVR application. In total, 31 joints of 2 3/8 tubing were removed from the original assembly and 64 joints of 2 7/8 dead string were installed in its place. A crossover allows the two different diameters to be connected and a perforated sub allows flow from the wellbore into the tubing. A capillary string is banded along the outside of the tubing and runs along the inside of the dead string. The entire installation and assembly took approximately eight hours.

WCVR Costs | July 20, 2010 – Worked on getting costs for the WCVR project; put tickets into excel and compared costs with the AFE to find which values are missing.

Summer Presentation | July 21, 2010 – Worked on slides and presentation.

WCVR Optimization | July 22, 2010 – After installing the WCVR, the well has steadily declined in production; a swabbing unit is required to help unload the well. We expect to begin soap injection soon and drop a plunger in the future to further increase production.

Summer Presentation | July 23, 2010 – Worked on slides and timing for the final presentation.

Week 7

Li Zhang — Mon, 12 Jul 2010 17:33:45 +0000

Emissions Testing | July 12, 2010 – Prepared a generator for emissions testing. A device is hooked up to the generator which will use power to the generator’s capacity, allowing a more accurate and stable reading of emissions.

Weatherford CVR | July 13, 2010 – Obtained a water sample from the Red Desert 13-4 well. This sample is used by the lab to determine the optimal surfactant to use to decrease the density of the well fluid. The fluid sample also gives insights to pH and chloride levels so we can select the proper grade of steel capillary tubing.

Weatherford CVR | July 14, 2010 – Worked on communicating with the rest of the people involved in this project to finalize the logistics and collect the required parts. Coordinated anchor testing and slickline to prepare the well for pulling.

Weatherford CVR | July 15, 2010 – Worked on an authorization for expenditure (AFE) for the CVR project. Each cost needs to be itemized so we know approximately how much we will spend on this well. After detailing all of the costs, the AFE is distributed throughout the team for approval.

Weatherford CVR | July 16, 2010 – Began installation of the CVR application. Rigged up and pulled the tubing from the well and laid 31 pieces out which will not be used for the final installation.

Week 6

Li Zhang — Thu, 08 Jul 2010 15:47:12 +0000

Workover Rig | July 6, 2010 – Observed the setup of a workover rig. This rig’s objective is to perform maintenance on wells such as pulling the tubing to inspect for damages or holes without having to bring a drilling rig onto the site.

Workover Rig | July 7, 2010 – Observed the operation of a workover rig. Often, many trucks are brought in since each well could have a myriad of different problems. For example, when the workover rig finishes pulling the tubing in a well, a wireline is often called to check the integrity of the well casing.

Summer Project | July 8, 2010 – Contacted Weatherford about the CVR system. Looked at the gas analysis as well as well diagrams to get a basic understanding of how the well is designed.

Summer Presentation | July 9, 2010 – Worked on my PowerPoint for my presentation August 2nd. The template makes it hard to add large pictures and use more creative slide designs, so I need to rely on content to capture the interest of my audience.