WO2005019598A1 - Methods for navigating and for positioning devices in a borehole system - Google Patents

Methods for navigating and for positioning devices in a borehole system Download PDF

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Publication number
WO2005019598A1
WO2005019598A1 PCT/US2004/026690 US2004026690W WO2005019598A1 WO 2005019598 A1 WO2005019598 A1 WO 2005019598A1 US 2004026690 W US2004026690 W US 2004026690W WO 2005019598 A1 WO2005019598 A1 WO 2005019598A1
Authority
WO
WIPO (PCT)
Prior art keywords
string
orientation
measurement device
wellbore
orientation measurement
Prior art date
Application number
PCT/US2004/026690
Other languages
French (fr)
Inventor
Douglas J. Murray
Original Assignee
Baker Hughes Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baker Hughes Incorporated filed Critical Baker Hughes Incorporated
Publication of WO2005019598A1 publication Critical patent/WO2005019598A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0035—Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches

Definitions

  • a method for navigating a wellbore including running a string into the wellbore.
  • the string includes an orientation measurement device and an operationally associated telemetry device wherein the string is configured to allow through passage of well equipment.
  • the method includes gathering orientation data with the orientation measurement device and telemetering the data to a remote location.
  • the method includes running a string having a junction mounted thereon and having an orientation measurement device and a telemetry device mounted thereon wherein the string is configured to allow through passage of well equipment.
  • the method includes gathering data regarding orientation of the junction as the junction nears a selected depth and installing the junction.
  • a method for running, setting and cementing a well structure including running the well structure into a borehole on a string including an orientation measurement device configured to allow through passage of well equipment and a telemetry device in operable communication with the orientation measurement device.
  • the method further includes gathering data on orientation of the orientation measurement device, which data is correlated to orientation of the well structure, telemetering the data to a remote location and setting the well structure in a desired orientation.
  • a running string including a length of tubing, wherein an orientation measurement device and telemetry device is in operable communication with the tubing, the string being configured to allow through passage of well equipment.
  • Figure 1 is a schematic view of a multilateral wellbore with a string therein having orientation and telemetry devices included;
  • Figure 1 A is a schematic view of an angleable device
  • Figure 2 is a schematic representation of an angleable sub
  • Figure 2 A is a schematic representation of an alternate embodiment
  • Figure 2B is a schematic representation of another alternate embodiment
  • Figure 3 is a schematic illustration of a junction being run to a setting location on a string with orientation and telemetry devices.
  • Figure 4 is a perspective schematic view of an alternate embodiment
  • Figure 4 A is a view of Figure 4 taken from line 4A-4A;
  • Figure 4B is an alternate arrangement of the 4 A view.
  • Figure 5 is another alternate embodiment.
  • a string is steerable through a multilateral wellbore system 10.
  • the method includes assembling a string 12 with a bent or selectively angleable sub 18 for causing the string to enter a particular pathway.
  • the string will enter a pathway when aligned therewith and in the case of an angleable sub, when the sub is angled toward that pathway selectively.
  • the string also includes an orientation measurement device 14 having one or more sensors therein such as those found in a commercially available MWD device such as a Baker Hughes Navi- Trak MWD device in order to determine orientation of a known fixed point on the tool relative to gravity, magnetic north, or other parsible environmental constant.
  • MWD device such as a Baker Hughes Navi- Trak MWD device
  • the bent sub may be reoriented such as by rotation of a string upon which it is mounted to achieve a desirable result, that result being to enter a target lateral or primary bore at each junction encountered by the string.
  • a kickover device is employable to selectively kick the advancing string over to a desired leg. Kickovers may be spring type, hydraulic, etc. such as in Baker Hughes commercially available AutoTrak system.
  • the orientation sub further is configured to take other data while running which may be used for many purposes but specifically with respect to this method is employed to verify location of the orientation sub in the wellbore.
  • data includes original drilling and well data, the parameters of which, when encountered again do indeed verify location.
  • Orientation with respect to some constant and well logging information very effectively enable steering in a multilateral wellbore system providing that information is made available to a control center 20 capable of rotating the bent joint or causing the angleable joint to reconfigure.
  • control center may be a downhole control center such as a processor or may be a surface location proximate the well head (not shown) or more remote.
  • Telemetering device 16 may employ a wireless or wired form of communication.
  • Wireless forms of communication include ultrasonic transmissions, electromagnetic (EM) transmissions, pressure pulse telemetering.
  • EM electromagnetic
  • Wired forms as intended to include electrical, optic, etc.
  • Data transmissions may be from periodic to continuous as desired. The foregoing provides for efficient, rapid and confident steering of a string through a wellbore.
  • FIG 2 an alternate embodiment is disclosed which orients a junction or other well structure for deployment. Junction 30 may be of any type; the particular type of junction is not dispositive of the effectiveness of the method. It is notable however that the method is employable for junctions ranging from level 3 to level 6 junctions of the TAML system of classification.
  • a level 6 junction is to be installed at a lateral borehole.
  • Junction 30 is run in the hole on a string which includes and places within or downhole of the junction 30, an orientation measurement device configured for through passage of another downhole tool (not shown) such as a tripping ball, completion string, etc.
  • the string 12 is run in the hole and orientation measurements taken as in the previous embodiment. Rotation is imparted to the string as necessary to properly orient the junction for deployment.
  • the employment of the components as noted significantly improves the likelihood of achieving a correct orientation of the junction in a single advancing movement of the string.
  • the string may be picked up and the process repeated as would be done in the prior art, however, in the using the method and devices disclosed herein, the orientation measurement device and telemetry device allow for pickup and re-rotation to be more precise thereby enhancing resultant placement.
  • orientation telemetry may be commenced when the junction is nearing target depth, may be periodic , may be continuous, or any other frequency or timing the particular installation or application requires or may be benefited from.
  • the string 12 having orientation measurement device 14 and telemetry device 16 as set forth and utilized with respect to the foregoing embodiments is employed to assist the orientation and deployment, including running, setting and cementing of a hook liner hanger system 40 or other liner hanger system.
  • the orientation measurement device 14 may be mounted as part of the liner immediately above or below the hook hanger or as part of the running string. Operation and telemetry of the orientation of the string is selectable as in the foregoing embodiments.
  • orientation measurement device as used herein has a through bore as noted above, setting and cementing operations can be undertaken conventionally without additional runs in the well.
  • orientation 14 and telemetry 16 devices are mounted in locations that provide the benefit of the devices as described above but are also not within the pathway of the tubing string. More particularly and referring to Figures 4, 4A, 4B and 5, one of ordinary skill will appreciate the locations of orientation 14 and telemetry 16 devices as appurtenant structures to the string 12 or junction 30. Since orientation 14 and telemetry 16 devices do not exist within the string, there is more leighway regarding their construction while not impacting well equipment movement through the string. [0029] In the Figure 4 embodiment, dead space in a splitter arrangement is employed to house the orientation and telemetry devices. This space is about 90° to the leg #1 and leg #2 as shown.
  • Figure 4A is an end view of the Figure 4 device and illustrates both the orientation and telemetry devices in one of the dead spaces available. It will be appreciated that this could also be on the other dead space shown at 15.
  • Figure 4B is an alternative arrangement where both of the previous dead spaces are used, one for each of the orientation 14 and the telemetry 16 devices. They may be located as shown or reversed with no distinction in effectiveness.
  • Figure 5 illustrates an alternative where the orientation 14 and telemetry 16 devices are appended to string 12. Again, the devices are not an impingement on well equipment run through the tubing but still achieve the desired results. [0030] While preferred embodiments have been shown and described, modifications and substitutions may be made thereto without departing from the spirit and scope of the invention. Accordingly, it is to be understood that the present invention has been described by way of illustrations and not limitation.

Abstract

Disclosed is a method for navigating a wellbore including running a string (12) into the wellbore. The string includes an orientation measurement device (14) and an operationally associated telemetry device (16) wherein the string is configured to allow through passage of well equipment. Method includes gathering orientation data with orientation measurement device and telemetering data to a remote location. Further disclosed is a method for running, setting and cementing a well structure including running the well structure into a borehole on a string including an orientation measurement device configured to allow through passage of well equipment and a telemetry device in operable communication with the orientation measurement device. Method includes gathering data on orientation, telemetering the data to a remote location and setting the well structure. Further disclosed is a running string including a length of tubing, having an orientation measurement device and telemetry device, configured to allow through passage of well equipment.

Description

METHODS FOR NAVIGATING AND FOR POSITIONING DEVICES IN A BOREHOIE SYSTEM
BACKGROUND
[0001] In the hydrocarbon recovery industry, like other industries, maximum efficiency and gain for minimum input is an ever present goal. Some of the areas in which efficiency could be improved in the hydrocarbon industry is in navigating the increasingly complex multilateral wellbore environment and in placing downhole devices in desired positions and orientations relative to the boreholes. Current technology employs many different means for locating and orienting devices and often employs multiple runs to ensure proper placement. As will be appreciated this means rig time, equipment usage, personnel, etc. and is therefore costly. [0002] Beyond cost there is also a lack of certainty about where a tool is in a labyrinth of multilateral boreholes for a longer period of time than would be desirable. [0003] It would benefit the art to reduce rig time, increase certainty and accuracy of device placements and reduce costs of well completion or re-entry.
SUMMARY
[0004] Disclosed herein is a method for navigating a wellbore including running a string into the wellbore. The string includes an orientation measurement device and an operationally associated telemetry device wherein the string is configured to allow through passage of well equipment. The method includes gathering orientation data with the orientation measurement device and telemetering the data to a remote location.
[0005] Further disclosed herein is a method for positioning a junction. The method includes running a string having a junction mounted thereon and having an orientation measurement device and a telemetry device mounted thereon wherein the string is configured to allow through passage of well equipment. The method includes gathering data regarding orientation of the junction as the junction nears a selected depth and installing the junction.
[0006] Further disclosed herein is a method for running, setting and cementing a well structure including running the well structure into a borehole on a string including an orientation measurement device configured to allow through passage of well equipment and a telemetry device in operable communication with the orientation measurement device. The method further includes gathering data on orientation of the orientation measurement device, which data is correlated to orientation of the well structure, telemetering the data to a remote location and setting the well structure in a desired orientation.
[0007] Further disclosed herein is a running string including a length of tubing, wherein an orientation measurement device and telemetry device is in operable communication with the tubing, the string being configured to allow through passage of well equipment.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Referring now to the drawings wherein like elements are numbered alike in the several Figures:
[0009] Figure 1 is a schematic view of a multilateral wellbore with a string therein having orientation and telemetry devices included;
[0010] Figure 1 A is a schematic view of an angleable device;
[0011] Figure 2 is a schematic representation of an angleable sub;
[0012] Figure 2 A is a schematic representation of an alternate embodiment;
[0013] Figure 2B is a schematic representation of another alternate embodiment;
[0014] Figure 3 is a schematic illustration of a junction being run to a setting location on a string with orientation and telemetry devices; and
[0015] Figure 4 is a perspective schematic view of an alternate embodiment;
[0016] Figure 4 A is a view of Figure 4 taken from line 4A-4A;
[0017] Figure 4B is an alternate arrangement of the 4 A view; and
[0018] Figure 5 is another alternate embodiment.
DETAILED DESCRIPTION
[0019] In a first embodiment of the method disclosed herein, reference to
Figure 1 being made, a string is steerable through a multilateral wellbore system 10. The method includes assembling a string 12 with a bent or selectively angleable sub 18 for causing the string to enter a particular pathway. In the case of a bent sub, the string will enter a pathway when aligned therewith and in the case of an angleable sub, when the sub is angled toward that pathway selectively. The string also includes an orientation measurement device 14 having one or more sensors therein such as those found in a commercially available MWD device such as a Baker Hughes Navi- Trak MWD device in order to determine orientation of a known fixed point on the tool relative to gravity, magnetic north, or other parsible environmental constant. Upon building the string it is known what the relative orientation of the bent sub 18 is to the orientation device. Therefore with knowledge by measurement of the orientation of the orientation device 14, the orientation of the bent sub 18 is easily calculable. The bent sub may be reoriented such as by rotation of a string upon which it is mounted to achieve a desirable result, that result being to enter a target lateral or primary bore at each junction encountered by the string. It should also be appreciated that a kickover device is employable to selectively kick the advancing string over to a desired leg. Kickovers may be spring type, hydraulic, etc. such as in Baker Hughes commercially available AutoTrak system.
[0020] The orientation sub further is configured to take other data while running which may be used for many purposes but specifically with respect to this method is employed to verify location of the orientation sub in the wellbore. Such data includes original drilling and well data, the parameters of which, when encountered again do indeed verify location. Orientation with respect to some constant and well logging information very effectively enable steering in a multilateral wellbore system providing that information is made available to a control center 20 capable of rotating the bent joint or causing the angleable joint to reconfigure. Such control center may be a downhole control center such as a processor or may be a surface location proximate the well head (not shown) or more remote. [0021] Delivering data gathered by orientation device 14 to the control center
20 is effected by telemetering device 16. Telemetering device 16 may employ a wireless or wired form of communication. Wireless forms of communication include ultrasonic transmissions, electromagnetic (EM) transmissions, pressure pulse telemetering. "Wired forms" as intended to include electrical, optic, etc. Data transmissions may be from periodic to continuous as desired. The foregoing provides for efficient, rapid and confident steering of a string through a wellbore. [0022] Referring to Figure 2, an alternate embodiment is disclosed which orients a junction or other well structure for deployment. Junction 30 may be of any type; the particular type of junction is not dispositive of the effectiveness of the method. It is notable however that the method is employable for junctions ranging from level 3 to level 6 junctions of the TAML system of classification. In the illustrated embodiment, a level 6 junction is to be installed at a lateral borehole. Junction 30 is run in the hole on a string which includes and places within or downhole of the junction 30, an orientation measurement device configured for through passage of another downhole tool (not shown) such as a tripping ball, completion string, etc.
[0023] The string 12 is run in the hole and orientation measurements taken as in the previous embodiment. Rotation is imparted to the string as necessary to properly orient the junction for deployment. The employment of the components as noted significantly improves the likelihood of achieving a correct orientation of the junction in a single advancing movement of the string. In the event conditions downhole prevent correct orientation the first time, the string may be picked up and the process repeated as would be done in the prior art, however, in the using the method and devices disclosed herein, the orientation measurement device and telemetry device allow for pickup and re-rotation to be more precise thereby enhancing resultant placement.
[0024] As in the foregoing embodiment, orientation telemetry may be commenced when the junction is nearing target depth, may be periodic , may be continuous, or any other frequency or timing the particular installation or application requires or may be benefited from.
[0025] It is desirable to place the orientation measurement device as indicated in Figure 2 or Figure 2A because it provides a slightly earlier indication of misalignment. This facilitates realignment while the string is still running further downhole. Such is advantageous because it is less effective to rotate a junction without axial movement simultaneously. By placing the orientation measurement device downhole of or within the junction as stated, positioning/orientation thereof is more precise and simpler in operation. This is not to preclude however a placement above the junction, as illustrated in Figure 2B.
[0026] Referring to Figure 3, another embodiment hereof is discussed. In this embodiment the string 12 having orientation measurement device 14 and telemetry device 16 as set forth and utilized with respect to the foregoing embodiments is employed to assist the orientation and deployment, including running, setting and cementing of a hook liner hanger system 40 or other liner hanger system. In such a string, the orientation measurement device 14 may be mounted as part of the liner immediately above or below the hook hanger or as part of the running string. Operation and telemetry of the orientation of the string is selectable as in the foregoing embodiments.
[0027] Because the orientation measurement device as used herein has a through bore as noted above, setting and cementing operations can be undertaken conventionally without additional runs in the well.
[0028] It is further contemplated herein to configure embodiments such that the orientation 14 and telemetry 16 devices are mounted in locations that provide the benefit of the devices as described above but are also not within the pathway of the tubing string. More particularly and referring to Figures 4, 4A, 4B and 5, one of ordinary skill will appreciate the locations of orientation 14 and telemetry 16 devices as appurtenant structures to the string 12 or junction 30. Since orientation 14 and telemetry 16 devices do not exist within the string, there is more leighway regarding their construction while not impacting well equipment movement through the string. [0029] In the Figure 4 embodiment, dead space in a splitter arrangement is employed to house the orientation and telemetry devices. This space is about 90° to the leg #1 and leg #2 as shown. Figure 4A is an end view of the Figure 4 device and illustrates both the orientation and telemetry devices in one of the dead spaces available. It will be appreciated that this could also be on the other dead space shown at 15. Figure 4B is an alternative arrangement where both of the previous dead spaces are used, one for each of the orientation 14 and the telemetry 16 devices. They may be located as shown or reversed with no distinction in effectiveness. Figure 5 illustrates an alternative where the orientation 14 and telemetry 16 devices are appended to string 12. Again, the devices are not an impingement on well equipment run through the tubing but still achieve the desired results. [0030] While preferred embodiments have been shown and described, modifications and substitutions may be made thereto without departing from the spirit and scope of the invention. Accordingly, it is to be understood that the present invention has been described by way of illustrations and not limitation.

Claims

What is claimed is:
Claim 1. A method for navigating a wellbore comprising: running a string into the wellbore, the string including an orientation measurement device and an operationally associated telemetry device, wherein the string is configured to allow through passage of well equipment; gathering orientation data with the orientation measurement device; and telemetering the data to a remote location.
Claim 2. A method for navigating a wellbore as claimed in claim 1 wherein said configuration includes through passage of well equipment through the orientation measurement device and the telemetry device.
Claim 3. A method for navigating a wellbore as claimed in claim 1 wherein the orientation measurement device and telemetry device are appended alongside the string.
Claim 4. A method for navigating a wellbore as claimed in claim 1 wherein said telemetering is wireless.
Claim 5. A method for navigating a wellbore as claimed in claim 1 wherein said telemetering is electrical.
Claim 6. A method for navigating a wellbore as claimed in claim 1 wherein said telemetering is continuous.
Claim 7. A method for navigating a wellbore as claimed in claim 1 wherein said orientation data gathering is continuous.
Claim 8. A method for navigating a wellbore as claimed in claim 1 wherein said string further includes a selectively actuatable pushover tool.
Claim 9. A method for navigating a wellbore as claimed in claim 8 wherein said pushover tool is electrical.
Claim 10. A method for navigating a wellbore as claimed in claim 8 wherein said pushover tool is hydraulic.
Claim 11. A method for positioning a junction comprising: running a string having a junction mounted therein and having an orientation measurement device and a telemetry device mounted thereon and wherein the string is configured to allow through passage of well equipment; gathering data regarding orientation of the junction as the junction nears a selected depth; and installing said junction.
Claim 12. A method for positioning a junction as claimed in claim 11 wherein said configuration includes through passage of well equipment through the orientation measurement device and the telemetry device.
Claim 13. A method for positioning a junction as claimed in claim 11 wherein the orientation measurement device and telemetry device are appended alongside the string.
Claim 14. A method for positioning a junction as claimed in claim 11 wherein said method includes rotating said junction a desired orientation.
Claim 15. A method for positioning a junction as claimed in claim 14 wherein said rotating is carried out while said string is running in.
Claim 16. A method for running setting and cementing a well structure comprising: running the well structure into a borehole on a string configured to allow passage of well equipment, the string further including an orientation measurement device and a telemetry device in operable communication with the orientation measurement device; gathering data on orientation of the orientation measurement device, which data is correlated to orientation of the well structure; telemetering the data to a remote location; and setting the well structure in a desired orientation.
Claim 17. A method for running setting and cementing a well structure as claimed in claim 16 wherein said method further includes running well equipment through said orientation measurement device.
Claim 18. A method for running setting and cementing a well structure as claimed in claim 17 wherein said well equipment is associated with releasing the well structure from the string.
Claim 19. A method for running setting and cementing a well structure as claimed in claim 17 wherein said well equipment is associated with cementing the well structure into the borehole.
Claim 20. A method for running setting and cementing a well structure as claimed in claim 17 wherein said well equipment is a completion string.
Claim 21. A method for running setting and cementing a well structure as claimed in claim 17 wherein said well equipment is a tripping ball.
Claim 22. A string comprising: a length of tubing; an orientation measurement device in operable communication with the tubing; and a telemetry device in operable communication with the tubing, said string being configured to allow through passage of well equipment.
Claim 23. A string as claimed in claim 22 wherein said orientation measurement device and telemetry device allow passage therethrough of said well equipment.
Claim 24. A string as claimed in claim 22 wherein said orientation measurement device and telemetry device are configured to mount aside said string.
Claim 25. A string as claimed in claim 22 wherein said running string further includes a kickover device.
PCT/US2004/026690 2003-08-19 2004-08-17 Methods for navigating and for positioning devices in a borehole system WO2005019598A1 (en)

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US49615103P 2003-08-19 2003-08-19
US60/496,151 2003-08-19

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