摘要:
A borehole includes a tubular member, a sealing member for sealing an annulus between the tubular member and the borehole, a pump for pumping fluidic materials into the tubular member, and an automatic choke for controllably releasing pressurized fluidic materials out of the annulus. A system and method monitor the operating pressure within the tubular member and compare the actual operating pressure with a desired operating pressure. The difference between the actual and desired operating pressure is then processed to control the operation of the automatic choke to thereby controllably bleed pressurized fluidic materials out of the annulus thereby creating back pressure within the borehole.
摘要:
A vibrating screen separator. The vibrating screen separator may be operated in a linear, an elliptical, or in a transition from elliptical to linear modes of operation. In the linear mode of operation, the screen separator moves along a reciprocating straight line path, and, in the elliptical mode of operation, the screen separator moves along an elliptical path. In the transitionary mode of operation, the screen separator is transitioned from movement along the elliptical path to movement along the linear path.
摘要:
An apparatus operable is a hazardous area for controlling a choke assembly includes an air source, an air purge system in fluid communication with the air source, a remote operating panel receiving data from at least one remotely located wellbore sensor, a local operating panel in electronic communication with the remote operating panel, and an actuator coupled to the assembly to control pressure within the wellbore. The remote operating panel includes an airtight housing in fluid communication with the air purge system, wherein air from the air purge system is circulated through the housing, a plurality of operator controls for manually controlling operation of the pressure control assembly, and a display for visually displaying values of data received from the wellbore sensor. The local operating panel includes an airtight panel housing in fluid communication with the air purge system, wherein air from the air purge system is circulated through the panel housing, and a local operator controller having an operator interface for receiving operator instruction input into the local panel, and operable to receive operator instructions from the remote panel and transmit operator instructions. The actuator includes a motor in an explosion-proof housing coupled to the choke plate and operable to adjust the orifice through the choke plate, wherein the motor receives electronic communication of the operator instructions transmitted by the local operator controller, and a position indicator coupled to the choke plate for sensing the orifice opening and providing feedback of the choke plate position to the motor.
摘要:
An apparatus operable is a hazardous area for controlling a choke assembly includes an air source, an air purge system in fluid communication with the air source, a remote operating panel receiving data from at least one remotely located wellbore sensor, a local operating panel in electronic communication with the remote operating panel, and an actuator coupled to the assembly to control pressure within the wellbore. The remote operating panel includes an airtight housing in fluid communication with the air purge system, wherein air from the air purge system is circulated through the housing, a plurality of operator controls for manually controlling operation of the pressure control assembly, and a display for visually displaying values of data received from the wellbore sensor. The local operating panel includes an airtight panel housing in fluid communication with the air purge system, wherein air from the air purge system is circulated through the panel housing, and a local operator controller having an operator interface for receiving operator instruction input into the local panel, and operable to receive operator instructions from the remote panel and transmit operator instructions. The actuator includes a motor in an explosion-proof housing coupled to the choke plate and operable to adjust the orifice through the choke plate, wherein the motor receives electronic communication of the operator instructions transmitted by the local operator controller, and a position indicator coupled to the choke plate for sensing the orifice opening and providing feedback of the choke plate position to the motor.