Cdx Gas, Inc.

Pine Tree Gas, LLC

Vitruvian Exploration, LLC

Cdx Gas, L.l.c.

Other

Effective Exploration, LLC

Efective Exploration, LLC

Pine Trees Gas, LLC

Joseph A Zupanick

Monty H Rial

Lawrence W Diamond

Harold E Payne

Robert Michael Lockerd, Sr

Frank Merendino, Jr

Systems and methods are presented for drilling a wellbore with a portion having a short radius of curvature. The systems include a drill assembly having a motor and a tubular housing. An actuator is at least partially disposed within the tubular housing and couples the motor to the tubular housing. The actuator is configured to selectively articulate the drill assembly between a straight configuration and a bent configuration. At least one torque anchor is fluidly-coupled to a trailing end of the drill assembly. Methods are presented for selectively articulating the drill assembly to form the wellbore, including the portion having short radius of curvature. Other systems and methods are presented.

Systems and methods for drilling wellbores having a short radius of curvature

According to one embodiment, a system for accessing a subterranean zone from the surface includes a well bore extending from the surface to the subterranean zone, and a well bore pattern connected to the junction and operable to drain fluid from a region of the subterranean zone to the junction.

System and method for accessing subterranean deposits

Systems and methods for drilling a wellbore with a portion having a short radius of curvature. A drill assembly having a motor and a tubular housing. An actuator is at least partially disposed within the tubular housing and couples the motor to the tubular housing. The actuator is configured to selectively articulate the drill assembly between a straight configuration and a bent configuration. At least one torque anchor is fluidly-coupled to a trailing end of the drill assembly.

Method and system for accessing subterranean deposits from the surface and tools therefor

A flow control system includes a pump positioned in a well to remove liquid from the well. A check valve is positioned in the well and includes an open position and a closed position. The check valve in the open position allows gas from a producing formation of the well to flow past the check valve, while the check valve in the closed position substantially reduces gas flow at the pump from the producing formation. A compressed gas source is in fluid communication with the well to provide compressed gas to move the check valve to the closed position.

Flow control system for removing liquid from a well

Improved method and system for accessing subterranean deposits from the surface that substantially eliminates or reduces the disadvantages and problems associated with previous systems and methods. In particular, the present invention provides an articulated well with a drainage pattern that intersects a horizontal cavity well. The drainage patterns provide access to a large subterranean area from the surface while the vertical cavity well allows entrained water, hydrocarbons, and other deposits to be efficiently removed and/or produced.

Method and system for accessing subterranean deposits from the surface

A method for circulating drilling fluid in a well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone. The articulated well bore is horizontally offset from the substantially vertical well bore at the surface and intersects the substantially vertical well bore at a junction proximate the subterranean zone. The method includes drilling a drainage bore from the junction into the subterranean zone and pumping a drilling fluid through the drill string when drilling the drainage bore. The method also includes providing fluid down the substantially vertical well bore through a tubing. A fluid mixture returns up the substantially vertical well bore outside of the tubing. The fluid mixture comprises the drilling fluid after the drilling fluid exits the drill string.

Method and system for circulating fluid in a well system

A method and system for surface production of gas from a subterranean zone includes forming a drainage pattern in a subsurface zone. The drainage pattern includes a plurality of cooperating bores and has a coverage area extending between the cooperating bores. Water pressure is lowered throughout the coverage area of the subsurface zone without significant subsurface drainage by producing water through the cooperating bores of the drainage pattern to the surface. Gas is produced from the coverage area of the subsurface zone with at least some of the water.

Method and system for surface production of gas from a subterranean zone

A method and system for surface production of gas from a subterranean zone includes lowering reservoir pressure in an area of a subterranean zone having a medium to low effective permeability through a multi-branching well bore pattern. At least twenty-five percent of the total gas in the area of the subterranean zone is produced within three years of the start of production.

Accelerated production of gas from a subterranean zone

A flow control system includes a pump positioned in a wellbore to remove liquid from the wellbore. An isolation device is positioned downhole of the pump and is expandable within the wellbore between a sealed position and an unsealed position. The isolation device in the sealed position substantially reduces gas flow at the pump during removal of the liquid.

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Pineville, WV, United States of America

Joseph A Zupanick