1
Fun Den Wang: Method and apparatus for recovery of oil, gas and mineral deposits by panel opening. October 30, 1984: US04479541 (237 worldwide citation)

A method for oil, gas and mineral recovery by panel opening drilling including providing spaced injection and recovery drill holes (10, 12) which respectively straddle a deposit bearing underground region (20), each drill hole including a panel shaped opening (18, 19) substantially facing the deposi ...


2
Fun Den Wang, Gene G Yie: Abrasive containing fluid jet drilling apparatus and process. Thomas W Speckman, August 13, 1985: US04534427 (89 worldwide citation)

An abrasive-fluid jet apparatus and process for drilling holes in rock having a rotary drill bit with multiple abrasive-fluid jet nozzles in the face of the bit and a stationary drill head housing torque generation apparatus and a rotary mounting holding the rotary drill bit beneath and in rotatable ...


3
Dan M Bass, Fun Den Wang: Open surface flotation method. The United States of America represented by the Secretary of the Interior, Donald A Gardiner, Gersten Sadowsky, November 24, 1981: US04302051 (14 worldwide citation)

A method for the in situ separation of viscous crude oil from a reservoir such as, oil sand, or tar sand is disclosed. Hot water is introduced to the top surface of the reservoir while steam is injected into the reservoir through drill holes. The hot water and steam may contain a surfactant. The bou ...


4
Dan M Bass, Fun Den Wang: Open surface flotation method for extracted crude oil. The United States of America represented by the Secretary of the Interior, Thomas Zack, Donald Gardiner, September 6, 1983: US04402552 (5 worldwide citation)

A method for the separation of extracted viscous crude oil placed in a reservoir of a opened cell. Materials such as oil shale, oil sand, or tar sand may be involved. Hot water is introduced to the top surface of the reservoir material in the cell while steam is injected into a steam gallery running ...


5
Fun Den Wang: Hydraulic method of mining coal. Dorr Carson Sloan & Peterson, November 7, 1989: US04878712 (5 worldwide citation)

Coal is mined using water jets to a remove a layer of thin horizontal slices of coal. The thickness of the layer is sufficiently small that elastic deformation of the roof of the layer due to settling will cause the roof to rest against the floor of the layer. A number of additional layers of slices ...


6
Fun Den Wang, Horace M Varner: Drill with remotely controlled operating modes and system and method for providing the same. RAMAX, Sheridan Ross P C, June 21, 2016: US09371693 (1 worldwide citation)

The present invention relates to a drilling system with a multi-function drill head used in, among other applications, oil and gas drilling. The system is used to enhance the effective permeability of an oil and/or gas reservoir by drilling or cutting new structures into the reservoir. The system is ...


7
Fun Den Wang, Horace M Varner: Drill with remotely controlled operating modes and system and method for providing the same. RAMAX, Sheridan Ross P C, August 9, 2016: US09410376 (1 worldwide citation)

The present invention relates to a drilling system with a multi-function drill head used in, among other applications, oil and gas drilling. The system is used to enhance the effective permeability of an oil and/or gas reservoir by drilling or cutting new structures into the reservoir. The system is ...


8
Fun Den Wang, Horace M Varner: Drill with remotely controlled operating modes and system and method for providing the same. RAMAX, Sheridan Ross P C, October 9, 2018: US10094172

The present invention relates to a drilling system with a multi-function drill head used in, among other applications, oil and gas drilling. The system is used to enhance the effective permeability of an oil and/or gas reservoir by drilling or cutting new structures into the reservoir. The system is ...