Peyto Exploration and Development in Alberta, Canada has experienced significant savings and natural gas production efficiencies by standardizing well pad designs. The company now has 20 identical well pads located in its Sundance fields about 175 miles west of Edmonton. Each well pad contains two to four wellheads. Horizontal drilling permits consolidating the four wellheads into a single pad.
Digital H2O recently expanded its extensive digital oilfield water management platform to include rig data visualization through a partnership with RigData. The platform, Water Asset Intelligence, provides a digital and interactive mapping solution with exceptional data modelling and visualization, enabling cost effective and sustainable use of water in oil and gas production.
Estimated U.S. natural gas well completions increased by 3 percent in the third quarter of 2014 compared to year-ago levels, according to API's 2014 Quarterly Well Completion Report, Third Quarter.
Estimated U.S. oil well completions increased by 5 percent in the second quarter of 2014 compared to year-ago levels, according to API's 2014 Quarterly Well Completion Report, Second Quarter.
Estimated U.S. oil well completions remained relatively flat in the first quarter of 2014 compared to year-ago levels, according to API's 2014 Quarterly Well Completion Report, First Quarter.
Oil well drilling rose in 2013 with total oil well completions up 5 percent from 2012, according to API's 2013 Quarterly Well Completion Report.
Well completion is a process that takes place after a oil or gas well has been verified to be commercially viable. Well completion involves casing, temperature and pressure evaluation and equipment installation to allow gas or oil drilling. Completion therefore has to wait for formation testing after a design well depth has been established. The specific activities involved in well completion include; drill stem tests (DST), production casting, production tubing installation, production flow commencement and installation of beam pumping units.
Drill stem tests have to be conducted to determine production formation potential. The DST experts use appropriate tools lowered into the bottom of the drilling hole to establish the formation potential. Adjustments are made to the tool to establish if the pressure is sufficient for production. This process should be left to the professional crew as hazards such as getting stuck by the test tool in floor testing. Exposure to h2s and other gases as well as blowouts are other hazards that only professional crews know how to deal with.
Production tubing installation is the other process involved in well completion. Small diameter tubing is more preferred to the larger ones in mining. Using couplings, individual tubing is joined to form a tubing string. The tubing that is to be used in mining is made using power tongs. With the advancement in technology, tubing can be made in the form of a continuous coil.
The final step in well completion is the initial production flow. Brine or water is injected into the well to remove the drilling fluid. This should be enough to initiate the flowing of the well. In the event that the well fails to flow under such circumstances, unloading or high pressure gas injection might be necessary. Caution should be taken since blowouts might occur if the well pressures happen to be charged.