Wellsite measurement and control while producing device

• US 20090114396A1
• Filed: 11/05/2007
• Published: 05/07/2009
• Est. Priority Date: 11/05/2007
• Status: Abandoned Application

• Current Assignee: Daniel Maurice Lerner, David John Kusko, Gabor Vecseri
• Original Assignee: Daniel Maurice Lerner, David John Kusko, Gabor Vecseri
• Inventors: Lerner, Daniel Maurice, Kusko, David John, Vecseri, Gabor
• Application Number:
  US11/982,813
• Publication Number:
  US 20090114396A1
• Time in Patent Office: Days
• US Class Current: 166/373
• CPC Class Codes: E21B 47/24 by positive mud pulses using a flow restricting valve within the drill pipe
• CPC Class Codes: Y10T 137/7764 Choked or throttled pressure type

Abstract

Disclosed is a device, method and system for a measurement while producing (MWP) and flow throttling (FTD) device for placement in a pipe with liquid or gas flowing through it such as an oil or gas well'"'"'s wellhead, casing, tubing, or horizontal or lateral passage which is responsive to the flow of fluid through it. The MWP/FTD device can create pressure pulses through the production fluid or otherwise send signals to provide bit data that are read and analyzed at the wellhead or externally thru wireless communications. The data analysis provides information regarding pressure, fluid flow, and type of fluid/gas flowing primarily within the lateral passages or generally anywhere the MWP/FTD is situated. The device helps identify whether the pipe, lateral or other passage should remain open, closed or restricted. This identification occurs by use of either autonomous control and sensors within the device and/or pre-programmed or wirelessly controlled signals that are transmitted from the well head (or externally) to the MWP/FTD. The MWP/FTD is subsequently urged to regulate the fluid/gas flow.

Claims

1. An apparatus for measuring and controlling fluid flow in a channel comprising:

a pulse generating device longitudinally and axially positioned within a flow channel such that a fluid/gas flowing through said flow channel is guided into two sets of selectively reversible flow, upper and lower flow connecting channels, wherein said connecting channels are connected to an inner flow channel and an annular pipe flow channel, and wherein said annular pipe flow channel is acted upon by one or more flow throttling devices thereby transmitting signals from pulses and also capable of controlling flow rate of said fluid flow and wherein said pulse generating device utilizes a turbine residing near and within proximity of a flow diverter that diverts said fluid flow in an annular flow channel into and away from turbine blades such that the force of said fluid flow causes said turbine blades and said turbine to rotationally spin around a coil assembly.

2. The apparatus of claim 1, wherein said apparatus for generating pulses includes said pilot actuator assembly comprised of a rear pilot shaft, front pilot shaft, and pilot, a pilot bellows, a flow throttling device, a sliding pressure chamber, and a pulser guide pole, wherein upper and lower inner flow connecting channels provide for reversal of flow and wherein said pilot seals a middle inner flow channel from said lower inner flow channel and such that said flow throttling device and said pilot are capable of bi-directional axial movement along or within said guide pole.

3. The apparatus of claim 1, wherein said coil assembly generates electrical power for recharging batteries and operating a motor and other operating equipment useful for instrumentation, said motor comprising a drive shaft centrally located between said motor and a magnetic pressure coupling wherein said motor and said coupling are mechanically coupled such that said motor rotates said magnetic pressure coupling outer magnets and moves said pilot actuator assembly.

4. The apparatus of claim 1, wherein a magnetic coupling is formed by a location external and internal to said magnetic pressure cup where outer magnets are placed in relation to inner magnets, said inner magnets located in a position inside said magnetic pressure cup, said coupling allowing for translating rotational motion of said motor and outer magnets to rotational or linear motion of said inner magnets via a magnetic polar interaction, wherein rotational or linear motion of said inner magnets move said pilot actuator assembly, thereby rotationally or linearly moving a pilot into a pilot seat, closing a pilot seat orifice, lifting a flow throttling device into a flow throttling orifice and thereby generating a pulse wherein a differential pressure is minimal in that a slight force acting on a small cross-sectional area of said pilot seat defines a pressure that is required to either engage or disengage said pilot, wherein further rotation of said motor drive shaft, and outer magnets move said pilot actuator assembly and said pilot away from said pilot seat causing said flow throttling device to move away from said flow throttling orifice, thereby ending the positive pulse.

5. The apparatus of claim 1, wherein said motor is connected to a drive shaft through a mechanical device including a worm gear, barrel cam face cam, or other mechanical means for converting the rotational motion of said motor into linear motion to propel said pilot actuator assembly.

6. The apparatus of claim 1, wherein said motor may be synchronous, asynchronous or stepper and is activated to fully rotate or to rotate incrementally in various degrees depending on wellbore or lateral passage(s) conditions and how much throttling is desired to control wellbore/pipe flow or pulsing thereby ensuring unaffected data transmission of the data stream.

7. The apparatus of claim 1, wherein said turbine resides within said annular flow channel of a flow guide and wherein said annular flow channel has diverting vanes that direct flow of fluid through and around a surface of said turbine.

8. The apparatus of claim 1, wherein said turbine includes a turbine shroud comprising turbine magnets that rotate with the motion of said turbine around said coil assembly causing electrical power to be generated for recharging rechargeable batteries and allowing for decreased battery requirements, a decrease in cost of said battery, decreased operational downtime, and subsequently decreased cost of said apparatus.

9. The apparatus of claim 1, wherein said turbine blades outside diameters around a pulser housing is smaller than a flow guide extension inner diameter, thereby allowing said turbine to be removed concurrently with said pulser housing.

10. The apparatus of claim 1, wherein said apparatus for generating pulses includes allowing a double loop configuration bellows to move linearly, concurrent with said pilot actuator assembly, wherein the design of said bellows interacts with said pilot actuator assembly and a bellows chamber allowing said bellows to conform to the space constraints of said bellows chamber providing flexible sealing without said bellows being displaced by the pressure differential created by said fluid flow and wherein pre-filling the bellows chamber with a lubricating fluid, gel or paste reduces energy consumption.

11. The apparatus of claim 1, wherein said pulse in said fluid flow is sensed by said instrumentation located uphole or downstream and wherein said pulse is communicated optionally with wireless devices, to a computer with a programmable controller for interpretation.

12. A method for generating pressure pulses during fluid flow and controlling said fluid flow comprising:

a pulse generating device longitudinally and axially positioned within an annular pipe flow channel such that said fluid/gas flows through said annular pipe flow channel and said fluid/gas is guided into two sets of selectively reversible flow, upper and lower flow connecting channels, wherein said connecting channels are connected to an inner flow channel and said annular pipe flow channel, and wherein said annular pipe flow channel is acted upon by one or more flow throttling devices thereby transmitting signals and controlling flow by throttling or closing off said fluid flow when pilot seat orifice is closed, wherein said device also utilizes a turbine residing near and within proximity of a flow diverter that diverts fluid flow in said annular flow channel into and away from turbine blades such that the force of the fluid causes said turbine blades and said turbine to rotationally spin around a coil assembly.

13. The method of claim 12, wherein apparatuses for generating pulses and controlling fluid flow includes said pilot actuator assembly comprised of a rear pilot shaft, front pilot shaft and pilot, a pilot bellows, a flow throttling device, a sliding pressure chamber, and a pulser guide pole, wherein upper and lower inner flow connecting channels provide for reversal of flow in said flow throttling device and wherein said pilot seals a middle inner flow channel from said lower inner flow channel such that said flow throttling device and said pilot are capable of bi-directional axial movement along said guide pole.

14. The method of claim 12, wherein said coil assembly generates electrical power for recharging batteries, and operating a motor and other operating equipment useful for instrumentation, said motor comprising a drive shaft centrally located between said motor and a magnetic pressure coupling wherein said motor and said coupling are mechanically coupled such that said motor rotates or linearly moves said magnetic pressure coupling outer magnets and moves said pilot actuator assembly, wherein said assembly opens and closes either a linear or rotational pilot valve.

15. The method of claim 12, wherein a magnetic coupling is formed by a location external and internal to said magnetic pressure cup where outer magnets are placed in relation to inner magnets, said inner magnets located in a position inside said magnetic pressure cup, said coupling allowing for translating rotational motion of said motor and outer magnets to rotational or linear motion of said inner magnets via a magnetic polar interaction, wherein rotational or linear motion of said inner magnets move said pilot actuator assembly, thereby rotationally or linearly moving a pilot into a pilot seat, closing a pilot seat orifice, lifting a flow throttling device into a flow throttling orifice and thereby generating a pulse wherein differential pressure is minimal in that a slight force acting on a small cross-sectional area of a pilot seat defines a pressure that is required to either engage or disengage said pilot, or controlling flow when said pilot seat is closed and wherein further rotation of said motor drive shaft and outer magnets move said pilot actuator assembly and said pilot away from said pilot seat causing said flow throttling device to move into said flow throttling orifice, thereby generating another pulse and/or controlling fluid flow.

16. The method of claim 12, wherein said motor is connected to a drive shaft through a mechanical device including a worm gear, barrel cam face cam, or other mechanical means for converting the rotational motion of said motor into linear motion to propel said pilot actuator assembly.

17. The method of claim 12, wherein said motor may be synchronous, asynchronous, or stepper and is activated to fully rotate or to incrementally rotate in various degrees depending on wellbore or lateral passage(s) conditions.

18. The method of claim 12, wherein said turbine resides within said annular flow channel of a flow guide and wherein said annular flow channel has diverting vanes that direct flow through and around a surface of said turbine.

19. The method of claim 12, wherein said turbine includes a turbine shroud comprising turbine magnets that rotate with the motion of said turbine around said coil assembly causing electrical power to be generated for recharging batteries and allowing for decreased battery requirements, a decrease in cost of said battery, decreased operational downtime, and subsequently decreased cost of said apparatus.

20. The method of claim 12, wherein said apparatus for generating pulses includes allowing a double loop configuration bellows to move linearly, concurrent with said pilot actuator assembly, wherein the design of said bellows interacts with said pilot actuator assembly and a bellows chamber allowing said bellows to conform to the space constraints of said bellows chamber providing flexible sealing without said bellows being displaced by the pressure differential created by the fluid flow wherein energy consumption may also be further reduced by pre-filling a bellows chamber with a lubricating fluid, gel or paste.

21. The method of claim 12, wherein said pulse of said fluid/gas flow is sensed by said instrumentation located within an uphole or downstream device and wherein said pulse is communicated optionally with wireless devices, to a computer with a programmable controller for interpretation.

22. A method for generating pressure pulses and controlling fluid/gas flow comprising a configuration including a guide pole channel and orifice chamber in the proximity of a pilot seat and pilot orifice wherein the diameter of said guide pole channel is smaller near said pilot seat and pilot orifice thereby creating a higher pressure in said guide pole channel than is exhibited by a fluid/gas flowing within a wellbore/pipe or lateral passage(s).

23. The method of claim 22, wherein said higher pressure creates a more discernable pulse with a flow throttling device when a pilot moves away from said pilot seat thereby permitting flow of fluid/gas through said pilot orifice or moving said pilot toward said pilot seat thereby closing said pilot orifice, wherein said pressure differential between the fluid/gas pressure and an orifice chamber moves said flow throttling device rapidly, thereby enabling forceful restriction of said fluid/gas flow through said flow throttling device orifice and little or no noise in a signal-to-noise ratio and wherein said pulses are extremely reproducible with corresponding signals that are readily defined uphole or downstream and wherein said fluid flow can be readily controlled.

24. Two or more apparatuses for generating pressure pulses and controlling fluid flow within a wellbore or lateral passage(s), comprising:

one or more pulse generating devices longitudinally and axially positioned within a flow channel such that a fluid flowing through said flow channel is guided into two sets of selectively reversible flow, upper and lower flow connecting channels, wherein said connecting channels are connected to an inner flow channel and an annular pipe flow channel, and wherein said annular pipe flow channel is acted upon by one or more flow throttling devices thereby transmitting signals from pulses and also capable of controlling flow rate of said fluid flow and wherein said pulse generating device utilizes a turbine residing near and within proximity of a flow diverter that diverts said fluid flow in an annular flow channel into and away from turbine blades such that the force of said fluid flow causes said turbine blades and said turbine to rotationally spin around a coil assembly generating electricity to run the system and/or recharge batteries.