Sand control on a horizontal well is completely different from a vertical well.

Before these improvements, drill bits in horizontal wells would move toward the point of least resistance and were difficult to control.

The agency granted 1,098 permits for horizontal wells in 1990, up from 127 in 1989.

The company drilled approximately 200 horizontal wells in the field in 2012.

The process involves using two separate horizontal wells into the reservoir.

From 1996 to 2005, tractors have covered an accumulated distance of more than 3,000 kilometers through horizontal wells for the company.

By June 1997, 28 horizontal wells had been completed, including three multilaterals.

Drilling expanded greatly in the past several years due to higher natural gas prices and use of horizontal wells to increase production.

The field was developed by horizontal wells, and massive hydraulic fracturing.

The operational envelope can be extended by use of tractors in horizontal wells.