Microwave communications at Apache Corporation
Feature Articles, Sep  29  2009 (Digital Energy Journal)

- Apache Corporation wanted faster data communications to support its drilling operations in Texas - and faster data transmission time (latency). So it chose a Mobile Broadband Trailer System from ERF Wireless, providing microwave data communications

A Mobile Broadband Trailer System (MBTS) was developed to provide the same fixed-location, high-capacity communication service that the service provider had provided to other commercial enterprises in the Permian Basin and elsewhere in Texas, New Mexico and Louisiana, but with nomadic capabilities.

By John Nagel, ERF Wireless, Inc.

During the course of 2008, ERF Wireless and Apache Corporation have worked together to develop a mobile, high-speed microwave IP communication system, to support Apache's drilling operations.

Microwave communications provide a much faster data communication rate, and data communication speed (lower latency) than is available using VSAT.

ERF supplied a communications system housed in a trailer, which it calls its Mobile Broadband Trailer System (MBTS).

Apache Corporation wanted to install a new communications system, because it was upgrading its suite of drilling engineering software and data management tools. Initial testing and implementation indicated a need for increased bandwidth and communication system reliability.

This testing and implementation resulted in a search for alternatives to the rig operators’ conventional satellite and landline systems, the traditional solutions used for rig communication.

It needed a network that would provide a real-time, continuous communication link from remote rig sites to corporate servers located in Houston.

Advanced well-logging and real-time collaboration with corporate resources housed in distant cities requires communication links with higher bandwidths and lower latency rates than were available.

The nature of the land-based rig site is nomadic, with drilling periods that generally range from 14 to 75 days. The operation moves from one remote location to another within days, necessitating the ability to easily reestablish a high-speed communication link to be used by the operating company, drilling company and other subcontractors on the site.

Traditionally, each remote drilling and production site was limited to a low-speed, high-latency satellite communication link. This link was often very expensive and could not easily accommodate real-time collaboration involving the transfer of high-bandwidth files or any applications requiring high-capacity bandwidth. Cellular coverage, if available, did not have the speed or capacity to support advanced third-generation digital services.

ERF Wireless, Inc., a Houston-based wireless internet service provider, collaborated with key Apache personnel to deliver more than 10 times the bandwidth (128 kbps to 1.5 Mbps) and less than one-eighth of the latency (60 ms) of traditional Very Small Aperture Terminal (VSAT) systems—all on a nomadic trailer platform.

The Mobile Broadband Trailer System facilitated real-time, continuous communication between key personnel at the remote wellsite and corporately secured servers at Apache’s Houston headquarters, enabling drilling and geophysical experts to access drilling and well data in real time.

The increased transmission speed of critical decision-making data saved overall rig time, reduced risk and exceeded the requirements set by the Apache drilling group, thereby providing more efficient workflows.

The faster broadband speeds allow more complex software applications to be run from the wellsite than was possible with traditional VSAT connections. It is also possible to expand this service from a point-to-point connection to a WiFi cloud coverage, allowing several locations to connect simultaneously without a reduction in bandwidth or an increase in latency. This could provide an economic method to better monitor permanent well and surface

sensors, allowing for better field production management.

In addition, Apache documented that the new broadband was delivered at a cost in line with traditional VSAT services.

Fast decisions

Adopting a high-capacity network for data transmission from the field would naturally result in less administrative time on several levels, leading to a more productive drilling process.

Larry Rader, drilling technical advisor for Apache’s Central Region, called upon Pat Moller, Apache process control systems advisor, for assistance.

Mr Moller had incorporated the use of high-speed microwave networks for packet transport in the company’s production Supervisory Control And Data Acquisition (SCADA) networks.

Although the packet sizes were much smaller in the SCADA reporting, the concept of network speed could be applied to the drilling side of Apache, which required faster networks and lower packet latency rates to handle voluminous information flow.

ERF Wireless was already providing high-speed internet to Apache’s Forbes Field office 50 miles from Lubbock, Texas. This particular field office was located more than a mile off the local roads. The service provider was able to offer more than 5 Mbps of internet bandwidth to the site via its microwave broadband network—typical of its Permian Basin network speeds.

Realizing the need for better communication capability in the oil and gas field, the service provider began to pursue a strategy whereby the MBTS that it already used for emergency response situations—an unfortunate but common occurrence across the Gulf Coast over the last several years—could be customized to address these communication needs. This production field office became the initial test bed for microwave communication for Apache’s drilling operations.

After initial testing, Rader said, “I am seeing Internet connection speeds at this field office as fast as those I experience in my corporate offices in downtown Tulsa, Oklahoma.”

Monitoring the link

ERF Wireless also provides a monitoring service that tracks the performance of each piece of communication equipment continuously.

Personnel at the company’s Network Operations Center, located at its corporate offices, have the ability to spot a problem prior to the customer’s detection and to repair the link remotely.

The commitment to Apache is to have the communication links operational as quickly as possible, while maintaining a 99.95% reliability index during drilling and production operation periods.

ERF Wireless

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