Abstract

A drill stem safety valve actuator that eliminates the need for a hydraulic union. The actuator can include a mounting sleeve that can be affixed to the valve, that can further have a pinion gear that can rotate a ball valve. The actuator can include a rack sleeve slidably disposed on the mounting sleeve, having a rack configured to engage the pinion wherein sliding the rack sleeve linearly along the length of the mounting sleeve rotates the pinion, thus, the ball valve.

IPC Classes  ?

• E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
• E21B 34/02 - Valve arrangements for boreholes or wells in well heads
• F16K 27/06 - Construction of housingsUse of materials therefor of taps or cocks
• F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfacesPackings therefor
• F16K 31/44 - Mechanical actuating means
• F16K 31/54 - Mechanical actuating means with toothed gearing with pinion and rack
• E21B 34/00 - Valve arrangements for boreholes or wells

Abstract

A drill stem safety valve actuator that eliminates the need for a hydraulic union is provided. The actuator can include a mounting sleeve that can be affixed to the valve, that can further have a pinion gear that can rotate a ball valve. The actuator can include a rack sleeve slidably disposed on the mounting sleeve, having a rack configured to engage the pinion wherein sliding the rack sleeve linearly along the length of the mounting sleeve rotates the pinion, thus, the ball valve.

IPC Classes  ?

• E21B 34/02 - Valve arrangements for boreholes or wells in well heads
• F16K 3/26 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
• F16K 31/54 - Mechanical actuating means with toothed gearing with pinion and rack

Abstract

A modular stop is provided for ball valves, such as those used as drill stem safety valves. The modular stop can be a replaceable component in valves for use with stems used to rotate a ball valve in the valve's body. The modular stop can bear the wear associated with the operation of ball valves and when the modular stop has exceeded its usable service life, it can be replaced without replacing the whole of the valve body. The modular stop can be used in new valve manufacture as well as in the retrofitting or remanufacturing of existing valves.

IPC Classes  ?

• F16K 5/08 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary Details
• F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfacesPackings therefor
• F16K 27/06 - Construction of housingsUse of materials therefor of taps or cocks

Abstract

A modular stop is provided for ball valves, such as those used as drill stem safety valves. The modular stop can be a replaceable component in valves for use with stems used to rotate a ball valve in the valve's body. The modular stop can bear the wear associated with the operation of ball valves and when the modular stop has exceeded its usable service life, it can be replaced without replacing the whole of the valve body. The modular stop can be used in new valve manufacture as well as in the retrofitting or remanufacturing of existing valves.

IPC Classes  ?

• E21B 34/06 - Valve arrangements for boreholes or wells in wells
• F16K 3/22 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
• F16K 3/314 - Forms or constructions of slidesAttachment of the slide to the spindle

Abstract

An apparatus and method is provided for cleaning out sand from underbalanced gas wells. The apparatus can include a valve subassembly equipped with an emergency shut in device to remotely control the actuation of the valve via an air or hydraulic control line. Operatively coupled to the inlet of the valve subassembly is a swivel subassembly that enables the coupling to a tubing string. A lifting assembly attaches the valve subassembly to an elevator of a well service rig. A hardened elbow coupled to an outlet of the valve subassembly directs the gas/sand mixture being removed from the well through a hose to a collection pit. The use of the apparatus in a sand cleanout operation allows joints of pipe to be tripped into and out of the tubing string all the while keeping the emergency shutdown device actuator connected and operational.

IPC Classes  ?

• E21B 21/02 - Swivel joints in hose lines
• E21B 37/00 - Methods or apparatus for cleaning boreholes or wells

Abstract

The present invention is an apparatus and method used in the cleaning out of sand in underbalanced gas wells. The present invention includes a valve subassembly equipped with an emergency shut in device to remotely control the actuation of the valve via an air or hydraulic control line. Operatively coupled to the inlet of the valve subassembly is a swivel subassembly which further enables the coupling to a tubing string. A lifting assembly attaches the valve subassembly to an elevator of a well service rig. A hardened elbow coupled to an outlet of the valve subassembly directs the gas/sand mixture being removed from the well through a hose to a collection pit. The use of the apparatus of the present invention in a sand cleanout operation allows joints of pipe to be tripped into and out of the tubing string all the while keeping the emergency shutdown device actuator connected and operational.

IPC Classes  ?

• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 37/00 - Methods or apparatus for cleaning boreholes or wells

Goods & Services

(1) Oilfield tools and equipment, namely, combination valve-swivel assemblies for underbalanced sand cleanout operations.