US20110073210A1 - Coiled tubing having a capillary window and method for making same - Google Patents
Coiled tubing having a capillary window and method for making same Download PDFInfo
- Publication number
- US20110073210A1 US20110073210A1 US12/711,811 US71181110A US2011073210A1 US 20110073210 A1 US20110073210 A1 US 20110073210A1 US 71181110 A US71181110 A US 71181110A US 2011073210 A1 US2011073210 A1 US 2011073210A1
- Authority
- US
- United States
- Prior art keywords
- coiled tubing
- insert
- capillary tube
- opening
- pulling tool
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 13
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V13/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups G01V1/00 – G01V11/00
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Definitions
- the present invention relates to coiled tubing used in oilfield operations.
- Information concerning, for example, the temperatures and pressures exhibited within a wellbore is used to predict the production interval of the well. Knowledge of the production interval is used to enhance the recovery rate of a well and, in turn, make the well more economical to operate.
- SAGD steam assisted gravity drainage
- Other downhole devices have been constructed to measure characteristics, such as temperature and pressure, within a wellbore.
- one such conventional device employs a coiled tubing in which a plurality of capillary tubes is disposed. Some of the plurality of capillary tubes have temperature sensors disposed therein, while others of the plurality of capillary tubes are used to measure pressure. In high temperature applications, however, such coiled tubing devices are susceptible to failure due to fatigue.
- the present invention provides a coiled tubing assembly.
- the coiled tubing assembly includes a coiled tubing having a side wall that defines an opening and an insert covering the opening and affixed to the coiled tubing.
- the coiled tubing has a longitudinal axis.
- the insert defines a capillary window therethrough.
- the opening and the insert include ends that are non-perpendicular to the longitudinal axis.
- the present invention provides a method of making a coiled tubing assembly.
- the method includes providing a coiled tubing defining a side wall opening and pulling a capillary tube into an interior of the coiled tubing through the side wall opening.
- the method further includes attaching the capillary tube to a capillary window of an insert for covering the side wall opening and affixing the insert to the coiled tubing.
- the present invention provides significant advantages, including increasing fatigue life of coiled tubing assemblies over conventional coiled tubing assemblies. Additional objectives, features and advantages will be apparent in the written description which follows.
- FIG. 1 is a top, plan view of an illustrative embodiment of a coiled tubing assembly
- FIG. 2 is a top, plan view of the coiled tubing assembly of FIG. 1 , wherein an insert of the coiled tubing assembly is displaced from an opening of a coiled tubing of the coiled tubing assembly;
- FIG. 3 is a cross-sectional view of the coiled tubing assembly of FIG. 1 , taken along the line 3 - 3 in FIG. 1 , wherein the insert of the coiled tubing assembly is displaced from the opening of the coiled tubing of the coiled tubing assembly;
- FIG. 4 is an enlarged view of a portion of the insert of the coiled tubing assembly of FIG. 1 including a first end thereof;
- FIG. 5 is an enlarged view of a portion of the insert of the coiled tubing assembly of FIG. 1 including a second end thereof;
- FIG. 6 is an enlarged view of a portion of the coiled tubing of the coiled tubing assembly of FIG. 1 including a first end of the opening in the coiled tubing;
- FIG. 7 is an enlarged view of a portion of the coiled tubing of the coiled tubing assembly of FIG. 1 including a second end of the opening in the coiled tubing;
- FIG. 8A is a cross-sectional view of the coiled tubing assembly of FIG. 1 , taken along the line 8 A- 8 A in FIG. 1 , depicting an illustrative configuration of the coiled tubing assembly prior to welding;
- FIG. 8B is a cross-sectional view of the coiled tubing assembly of FIG. 1 , corresponding to the view of FIG. 8A , depicting an illustrative configuration of the coiled tubing assembly after welding;
- FIG. 9A is a cross-sectional view of the coiled tubing assembly of FIG. 1 , taken along the line 9 A- 9 A in FIG. 1 , depicting an illustrative configuration of the coiled tubing assembly prior to welding;
- FIG. 9B is a cross-sectional view of the coiled tubing assembly of FIG. 1 , corresponding to the view of FIG. 9A , depicting an illustrative configuration of the coiled tubing assembly after welding;
- FIG. 10A is a cross-sectional view of the coiled tubing assembly of FIG. 1 , taken along the line 10 A- 10 A in FIG. 1 , depicting an illustrative configuration of the coiled tubing assembly prior to welding;
- FIG. 10B is a cross-sectional view of the coiled tubing assembly of FIG. 1 , corresponding to the view of FIG. 10A , depicting an illustrative configuration of the coiled tubing assembly after welding;
- FIG. 11 is a cross-sectional view of the coiled tubing assembly of FIG. 1 , taken along the line 11 - 11 in FIG. 1 ;
- FIG. 12 is a cross-sectional view of the coiled tubing assembly of FIG. 1 , taken along the line 12 - 12 in FIG. 1 ;
- FIG. 13 is a cross-sectional view of an illustrative embodiment of an assembled coiled tubing assembly corresponding to the view of FIG. 3 , except that the insert of the coiled tubing assembly is not displaced from the opening of the coiled tubing of the coiled tubing assembly;
- FIGS. 14 and 15 are top, plan views of alternative, illustrative embodiments of the insert of the coiled tubing assembly of FIG. 1 ;
- FIG. 16 is a cross-sectional view, corresponding to the view of FIG. 3 , illustrating a method for assembling the coiled tubing assembly of FIG. 1 and depicting devices useful in the practice of the method;
- FIGS. 17 and 18 are end, elevational views of an illustrative embodiment of a secondary pulling tool of FIG. 16 ;
- FIG. 19 is a cross-sectional view of the secondary pulling tool of FIG. 16 , taken along the line 19 - 19 in FIG. 17 ;
- FIG. 20 is a cross-sectional view of the secondary pulling tool of FIG. 16 , taken along the line 20 - 20 in FIG. 19 ;
- FIG. 21 is a perspective view of portions of the coiled tubing and capillary tube of FIG. 16 , illustrating an exemplary use of an illustrative embodiment of a capillary tube guide;
- FIG. 22 is an end, elevational view of the capillary tube guide of FIG. 21 ;
- FIG. 23 is a top, plan view of the capillary tube guide of FIG. 21 ;
- FIG. 24 is an end, elevational view of the capillary tube guide of FIG. 21 ;
- FIG. 25 is a cross-sectional view, corresponding to the view of FIG. 16 , illustrating a method for assembling the coiled tubing assembly of FIG. 1 and depicting a device useful in the practice of the invention.
- the present invention relates to a coiled tubing assembly comprising a coiled tubing having an opening in which an insert is affixed.
- the insert defines a capillary window in which a capillary tube is affixed.
- the capillary tube is used in the measurement of various downhole conditions, such as temperature, pressure, or the like.
- FIGS. 1-3 depict various views of an illustrative embodiment of a coiled tubing assembly 101 configured to be operatively associated with a capillary tube, such as a capillary tube 1301 shown in FIG. 13 , and associated devices for measuring conditions, such as temperature, pressure, and the like, that exist downhole in oilfield operations.
- FIG. 1 depicts a top, plan view of coiled tubing assembly 101 .
- FIG. 2 depicts a top, plan view of coiled tubing assembly 101 , in which an insert 103 is displaced from an opening 105 in a coiled tubing 107 .
- FIG. 3 is a cross-sectional view, taken along the line 3 - 3 in FIG. 1 , in which insert 103 is displaced from opening 105 in coiled tubing 107 .
- coiled tubing assembly 101 comprises coiled tubing 107 defining opening 105 in a side wall 109 thereof.
- Coiled tubing assembly 101 further comprises insert 103 affixed in opening 105 , such as by a weldment or the like, to isolate an interior of coiled tubing 107 from an environment about coiled tubing 107 .
- Opening 105 and insert 103 incorporate particular features that inhibit fatigue-related failure of such coiled tubing assemblies, as are discussed in greater detail herein.
- insert 103 includes a first side 201 and a second side 203 that extend generally parallel to a longitudinal axis 205 of coiled tubing 107 .
- Insert 103 further includes a first end 207 and a second end 209 that are angled at non-right angles with respect to first side 201 and second side 203 .
- FIG. 4 is an enlarged, top, plan view of first end 207 of insert 103
- FIG. 5 is an enlarged, top, plan view of second end 209 of insert 103 . As best shown in FIGS.
- first end 207 is angled with respect to first side 201 and second side 203 by an angle A
- second end 209 is angled with respect to first side 201 and second side 203 by an angle B.
- angle A may be the same as or different from angle B.
- angles A and B are generally about 30 degrees, although the present invention contemplates many other angles A and B.
- angles A and B may be within a range of about 15 degrees to about 70 degrees; however, the scope of the present invention is not so limited.
- First end 207 meets first side 201 at a first transition 211 and second end 209 meets second side 203 at a second transition 213 .
- First transition 211 defines a radius R 1 and second transition 213 defines a radius R 2 .
- radius R 1 may be the same as or different from radius R 2 .
- radius R 1 and radius R 2 are greater than about 3 millimeters. It should be noted that radius R 1 and radius R 2 are preferably not so large as to cause angles A and B, respectively, to be outside of the range of about 15 degrees to about 70 degrees.
- opening 105 defined by coiled tubing 107 comprises a first side 215 and a second side 217 that extend generally parallel to longitudinal axis 205 of coiled tubing 107 .
- opening 105 further includes a first end 219 that is angled at angle A with respect to first side 215 , i.e., generally corresponding to angle A of insert 103 .
- opening 105 further includes a second end 221 that is angled at angle B with respect to second side 217 , i.e., generally corresponding to angle B of insert 103 .
- First end 219 meets first side 215 at a first transition 223 and second end 221 meets second side 217 at a second transition 225 .
- First transition 223 of opening 105 exhibits generally the same radius R 1 as first transition 211 of insert 103 .
- Second transition 225 of opening 105 exhibits generally the same radius R 2 as second transition 213 of insert 103 .
- coiled tubing 107 defines a chamfer 227 about opening 105 .
- Insert 103 defines a chamfer 229 along first end 207 of insert 103 .
- Insert 103 further defines a chamfer 231 along second end 209 of insert 103 .
- chamfers 227 , 229 , and 231 form joints between insert 103 and coiled tubing 107 where insert 103 is welded and joined to coiled tubing 107 .
- FIG. 8A which is a cross-sectional view taken along the line 8 A- 8 A in FIG.
- a joint 801 extends along and between first sides 201 and 215 and exhibits an included angle C.
- a joint 803 extends along and between second sides 203 and 217 and exhibits an included angle D.
- angle C may correspond to or be different than angle D.
- angles C and D are at least 45 degrees, to allow full weld penetration.
- insert 103 is joined to coiled tubing 107 by weldments 805 and 807 where joints 801 and 803 , respectively, existed prior to weldments 805 and 807 being generated.
- a joint 901 extends along and between first end 207 of insert 103 and first end 219 of opening 105 and exhibits an included angle E.
- joint 1001 extends along and between second end 209 of insert 103 and second end 221 of opening 105 and exhibits an included angle F, as shown in FIG. 10A , which is a cross-sectional view taken along the line 10 A- 10 A in FIG. 1 .
- angle E may correspond to or be different than angle F.
- angles E and F are about 90 degrees to allow full weld penetration and to inhibit fatigue-related failure of coiled tubing assembly 101 .
- insert 103 is joined to coiled tubing 107 by weldment 903 where joint 901 existed prior to weldment 903 being generated.
- insert 103 is joined to coiled tubing 107 by weldment 1003 where joint 1001 existed prior to weldment 1003 being generated.
- FIG. 11 is a cross-sectional view taken along the line 11 - 11 in FIG. 1
- FIG. 12 is a cross-sectional view taken along the line 12 - 12 in FIG. 1
- insert 103 includes a fitting 301 that defines a capillary window 111 (shown only in FIGS. 3 and 11 ) communicating between an interior of coiled tubing assembly 101 and an environment external to coiled tubing assembly 101 .
- Fitting 301 and capillary window 111 are also shown in FIGS. 8A and 8B . As shown in FIG.
- capillary tube 1301 is received in capillary window 111 such that an environment external to coiled tubing assembly 101 is communicated via capillary window 111 to capillary tube 1301 .
- Capillary tube 1301 is used in the measurement of various characteristics of the environment external to coiled tubing assembly 101 , such as temperature, pressure, or the like.
- capillary tube 1301 may convey pressure, corresponding to the pressure of the environment external to coiled tubing assembly 101 , to a pressure sensor that may be located inside coiled tubing 107 or proximate a wellhead at a surface of a well.
- Capillary window 111 may be configured to allow a pressure test fixture, a screen, a burst plug, or the like to be fitted to capillary window 111 .
- opening 105 of coiled tubing 107 and insert 103 incorporate particular features that inhibit fatigue-related failure of such coiled tubing assemblies.
- fatigue cracks tend to propagate radially in coiled tubing, i.e., generally circumferentially about the coiled tubing perpendicular to a longitudinal axis of the coiled tubing, such as longitudinal axis 205 of coiled tubing 107 .
- Weldments reduce fatigue life and tend to fail along heat affected zones adjacent weldments where the material of the coiled tubing is more brittle.
- axial weldments i.e., weldments that are generally parallel to a longitudinal axis of the coiled tubing, such as longitudinal axis 205 of coiled tubing 107 , perform better than radial weldments.
- ends 207 and 209 of insert 103 and ends 219 and 221 of opening 105 are configured to be non-perpendicular to longitudinal axis 205 of coiled tubing 107 , so that the heat affected zones adjacent weldments 903 (shown in FIG. 9B) and 1003 (shown in FIG. 10B ) are not aligned with a plane of crack propagation.
- insert 103 tapers from greater thicknesses proximate fitting 301 to thinner thicknesses proximate first end 207 and second end 209 .
- Fitting 301 is also preferably thinner, rather than thicker.
- an insert for the present coiled tubing assembly may exhibit shapes such as those depicted in FIGS. 14 and 15 .
- an insert 1401 includes a first end 1403 and a second end 1405 that exhibit semi-circular shapes.
- an insert 1501 includes a first end 1503 and a second end 1505 that exhibit angular shapes having central apexes 1507 and 1509 , respectively.
- other aspects of inserts 1401 and 1501 correspond to the aspects of insert 103 , shown in at least FIG. 1 .
- the opening defined by the coiled tubing e.g., opening 105 of coiled tubing 107
- the present invention contemplates various shapes for insert 103 and opening 105 of coiled tubing 107 other than the shapes shown in the figures.
- Coiled tubing assembly 101 may include one insert and corresponding capillary tube, such as insert 103 and capillary tube 1301 , or coiled tubing assembly 101 may include many inserts and corresponding capillary tubes. While there are many ways to assemble coiled tubing assembly 101 , FIGS. 16-25 depict one particular method of assembling coiled tubing assembly 101 and associated devices used in the method. It should be noted that, while the description herein relates to coiled tubing assembly 101 including insert 103 , the description applies equally to any insert contemplated by the present invention.
- coiled tubing 107 is provided with opening 105 .
- a primary pulling tool 1601 with a first pulling cable 1603 attached to a fore end 1605 thereof is disposed within coiled tubing 107 .
- a second pulling cable 1607 is attached to an aft end 1609 of primary pulling tool 1601 and is attached through a first clip 1611 of a secondary pulling tool 1613 .
- a capillary tube 1615 which corresponds to capillary tube 1301 , is attached to a second clip 1617 of secondary pulling tool 1613 .
- capillary tube 1615 is pulled into coiled tubing 107 from a spool 1621 .
- another secondary pulling tool 1613 is attached to second pulling cable 1607 via first clip 1611 thereof, so that another capillary tube may be pulled into coiled tubing 107 .
- FIGS. 17-20 depict an illustrative embodiment of secondary pulling tool 1613 .
- FIG. 17 is an end, elevational view of secondary pulling tool 1613 , taken generally in a direction corresponding to arrow FIG. 17 in FIG. 16 .
- FIG. 18 is an end, elevational view of secondary pulling tool 1613 , taken generally in a direction corresponding to arrow FIG. 18 in FIG. 16 .
- FIG. 19 is a cross-sectional view of secondary pulling tool 1613 , taken along the line 19 - 19 in FIG. 17 .
- FIG. 20 is a cross-sectional view of secondary pulling tool 1613 , taken along the line 20 - 20 in FIG. 19 .
- Secondary pulling tool 1613 comprises a body 1701 defining a first bore 1703 that extends into and terminates in body 1701 from a first end 1705 thereof.
- Body 1701 further defines a second bore 1801 that extends into body 1701 from a second end 1803 thereof and terminates at a side surface 2001 of body 1701 , extending through side surface 2001 .
- Capillary tube 1615 is received in first bore 1703 and is retained therein by one or more fasteners 1901 , which may be in the form of set screws.
- Second pulling cable 1607 is received in second bore 1801 and is retained therein by one or more fasteners 1903 , which may also be in the form of set screws.
- FIGS. 22-25 depict various views of an exemplary embodiment of capillary tube guide 2101 .
- FIG. 22 is an end, elevational view of capillary tube guide 2101 taken generally in a direction corresponding to arrow FIG. 22 of FIG. 23 .
- FIG. 23 is a top, plan view of capillary tube guide 2101
- FIG. 24 is an end, elevational view of capillary tube guide 2101 taken generally in a direction corresponding to arrow FIG. 24 of FIG.
- FIG. 25 depicts a cross-sectional view of capillary tube guide 2101 , taken along line 25 - 25 in FIG. 23 , along with a view of coiled tubing 107 corresponding to the view of FIG. 16 .
- Capillary tube guide 2101 comprises a first leg 2201 and a second leg 2203 extending from a base 2205 .
- First leg 2201 , second leg 2203 , and base 2205 define a slot 2303 , through which capillary tube 1615 passes when capillary tube guide 2101 is in use. As best shown in FIGS.
- portions of first leg 2201 , second leg 2203 , and base 2205 that define slot 2303 are rounded, curved, radiused, or the like to inhibit damage to capillary tubing 1615 when capillary tube guide 2101 is in use.
- a protrusion 2207 extends from a lower surface 2209 of capillary tube guide 2101 that interfaces with opening 105 of coiled tubing 107 to position capillary tube guide 2101 properly with respect to coiled tubing 107 .
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
A coiled tubing assembly includes coiled tubing having a side wall that defines an opening and an insert covering the opening and affixed to the coiled tubing. The coiled tubing has a longitudinal axis. The insert defines a capillary window therethrough. The opening and the insert include ends that are non-perpendicular to the longitudinal axis. A method of making a coiled tubing assembly includes providing coiled tubing defining a side wall opening and pulling a capillary tube into the interior of the coiled tubing through the side wall opening. The method further includes attaching the capillary tube to a capillary window of an insert for covering the side wall opening and affixing the insert to the coiled tubing.
Description
- This application claims priority from U.S. Provisional Application 61/246,815, filed on Sep. 29, 2009, which is incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to coiled tubing used in oilfield operations.
- 2. Description of Related Art
- Information concerning, for example, the temperatures and pressures exhibited within a wellbore is used to predict the production interval of the well. Knowledge of the production interval is used to enhance the recovery rate of a well and, in turn, make the well more economical to operate. Tools exist to retrieve such information relating to conventional wells that exhibit temperatures below about 204° C. (400° F.). In wells that exhibit higher temperatures, such as steam assisted gravity drainage (SAGD) wells, cyclic steam wells, and the like, design of such tools becomes difficult, as elastomer materials often cannot withstand such high temperatures.
- Other downhole devices have been constructed to measure characteristics, such as temperature and pressure, within a wellbore. For example, one such conventional device employs a coiled tubing in which a plurality of capillary tubes is disposed. Some of the plurality of capillary tubes have temperature sensors disposed therein, while others of the plurality of capillary tubes are used to measure pressure. In high temperature applications, however, such coiled tubing devices are susceptible to failure due to fatigue.
- There are devices for measuring characteristics, such as pressure and temperature, in a downhole environment that are well known in the art, however, considerable shortcomings remain.
- In one aspect, the present invention provides a coiled tubing assembly. The coiled tubing assembly includes a coiled tubing having a side wall that defines an opening and an insert covering the opening and affixed to the coiled tubing. The coiled tubing has a longitudinal axis. The insert defines a capillary window therethrough. The opening and the insert include ends that are non-perpendicular to the longitudinal axis.
- In another aspect, the present invention provides a method of making a coiled tubing assembly. The method includes providing a coiled tubing defining a side wall opening and pulling a capillary tube into an interior of the coiled tubing through the side wall opening. The method further includes attaching the capillary tube to a capillary window of an insert for covering the side wall opening and affixing the insert to the coiled tubing.
- The present invention provides significant advantages, including increasing fatigue life of coiled tubing assemblies over conventional coiled tubing assemblies. Additional objectives, features and advantages will be apparent in the written description which follows.
- The novel features characteristic of the invention are set forth in the appended claims. However, the invention itself, as well as a preferred mode of use, and further objectives and advantages thereof, will best be understood by reference to the following detailed description when read in conjunction with the accompanying drawings, in which the leftmost significant digit(s) in the reference numerals denote(s) the first figure in which the respective reference numerals appear, wherein:
-
FIG. 1 is a top, plan view of an illustrative embodiment of a coiled tubing assembly; -
FIG. 2 is a top, plan view of the coiled tubing assembly ofFIG. 1 , wherein an insert of the coiled tubing assembly is displaced from an opening of a coiled tubing of the coiled tubing assembly; -
FIG. 3 is a cross-sectional view of the coiled tubing assembly ofFIG. 1 , taken along the line 3-3 inFIG. 1 , wherein the insert of the coiled tubing assembly is displaced from the opening of the coiled tubing of the coiled tubing assembly; -
FIG. 4 is an enlarged view of a portion of the insert of the coiled tubing assembly ofFIG. 1 including a first end thereof; -
FIG. 5 is an enlarged view of a portion of the insert of the coiled tubing assembly ofFIG. 1 including a second end thereof; -
FIG. 6 is an enlarged view of a portion of the coiled tubing of the coiled tubing assembly ofFIG. 1 including a first end of the opening in the coiled tubing; -
FIG. 7 is an enlarged view of a portion of the coiled tubing of the coiled tubing assembly ofFIG. 1 including a second end of the opening in the coiled tubing; -
FIG. 8A is a cross-sectional view of the coiled tubing assembly ofFIG. 1 , taken along theline 8A-8A inFIG. 1 , depicting an illustrative configuration of the coiled tubing assembly prior to welding; -
FIG. 8B is a cross-sectional view of the coiled tubing assembly ofFIG. 1 , corresponding to the view ofFIG. 8A , depicting an illustrative configuration of the coiled tubing assembly after welding; -
FIG. 9A is a cross-sectional view of the coiled tubing assembly ofFIG. 1 , taken along theline 9A-9A inFIG. 1 , depicting an illustrative configuration of the coiled tubing assembly prior to welding; -
FIG. 9B is a cross-sectional view of the coiled tubing assembly ofFIG. 1 , corresponding to the view ofFIG. 9A , depicting an illustrative configuration of the coiled tubing assembly after welding; -
FIG. 10A is a cross-sectional view of the coiled tubing assembly ofFIG. 1 , taken along theline 10A-10A inFIG. 1 , depicting an illustrative configuration of the coiled tubing assembly prior to welding; -
FIG. 10B is a cross-sectional view of the coiled tubing assembly ofFIG. 1 , corresponding to the view ofFIG. 10A , depicting an illustrative configuration of the coiled tubing assembly after welding; -
FIG. 11 is a cross-sectional view of the coiled tubing assembly ofFIG. 1 , taken along the line 11-11 inFIG. 1 ; -
FIG. 12 is a cross-sectional view of the coiled tubing assembly ofFIG. 1 , taken along the line 12-12 inFIG. 1 ; -
FIG. 13 is a cross-sectional view of an illustrative embodiment of an assembled coiled tubing assembly corresponding to the view ofFIG. 3 , except that the insert of the coiled tubing assembly is not displaced from the opening of the coiled tubing of the coiled tubing assembly; -
FIGS. 14 and 15 are top, plan views of alternative, illustrative embodiments of the insert of the coiled tubing assembly ofFIG. 1 ; -
FIG. 16 is a cross-sectional view, corresponding to the view ofFIG. 3 , illustrating a method for assembling the coiled tubing assembly ofFIG. 1 and depicting devices useful in the practice of the method; -
FIGS. 17 and 18 are end, elevational views of an illustrative embodiment of a secondary pulling tool ofFIG. 16 ; -
FIG. 19 is a cross-sectional view of the secondary pulling tool ofFIG. 16 , taken along the line 19-19 inFIG. 17 ; -
FIG. 20 is a cross-sectional view of the secondary pulling tool ofFIG. 16 , taken along the line 20-20 inFIG. 19 ; -
FIG. 21 is a perspective view of portions of the coiled tubing and capillary tube ofFIG. 16 , illustrating an exemplary use of an illustrative embodiment of a capillary tube guide; -
FIG. 22 is an end, elevational view of the capillary tube guide ofFIG. 21 ; -
FIG. 23 is a top, plan view of the capillary tube guide ofFIG. 21 ; -
FIG. 24 is an end, elevational view of the capillary tube guide ofFIG. 21 ; and -
FIG. 25 is a cross-sectional view, corresponding to the view ofFIG. 16 , illustrating a method for assembling the coiled tubing assembly ofFIG. 1 and depicting a device useful in the practice of the invention. - While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims.
- Illustrative embodiments of the invention are described below. In the interest of clarity, not all features of an actual implementation are described in this specification. It will be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions must be made to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.
- The present invention relates to a coiled tubing assembly comprising a coiled tubing having an opening in which an insert is affixed. The insert defines a capillary window in which a capillary tube is affixed. The capillary tube is used in the measurement of various downhole conditions, such as temperature, pressure, or the like.
-
FIGS. 1-3 depict various views of an illustrative embodiment of acoiled tubing assembly 101 configured to be operatively associated with a capillary tube, such as acapillary tube 1301 shown inFIG. 13 , and associated devices for measuring conditions, such as temperature, pressure, and the like, that exist downhole in oilfield operations.FIG. 1 depicts a top, plan view ofcoiled tubing assembly 101.FIG. 2 depicts a top, plan view ofcoiled tubing assembly 101, in which aninsert 103 is displaced from anopening 105 in acoiled tubing 107.FIG. 3 is a cross-sectional view, taken along the line 3-3 inFIG. 1 , in which insert 103 is displaced from opening 105 incoiled tubing 107. - In the embodiment illustrated in
FIGS. 1-3 ,coiled tubing assembly 101 comprises coiledtubing 107 definingopening 105 in aside wall 109 thereof.Coiled tubing assembly 101 further comprisesinsert 103 affixed inopening 105, such as by a weldment or the like, to isolate an interior ofcoiled tubing 107 from an environment about coiledtubing 107.Opening 105 and insert 103 incorporate particular features that inhibit fatigue-related failure of such coiled tubing assemblies, as are discussed in greater detail herein. - Referring in particular to
FIG. 2 , insert 103 includes afirst side 201 and asecond side 203 that extend generally parallel to alongitudinal axis 205 ofcoiled tubing 107.Insert 103 further includes afirst end 207 and asecond end 209 that are angled at non-right angles with respect tofirst side 201 andsecond side 203.FIG. 4 is an enlarged, top, plan view offirst end 207 ofinsert 103 andFIG. 5 is an enlarged, top, plan view ofsecond end 209 ofinsert 103. As best shown inFIGS. 4 and 5 , respectively,first end 207 is angled with respect tofirst side 201 andsecond side 203 by an angle A, whilesecond end 209 is angled with respect tofirst side 201 andsecond side 203 by an angle B. It should be noted that angle A may be the same as or different from angle B. In the illustrated embodiment, angles A and B are generally about 30 degrees, although the present invention contemplates many other angles A and B. For example, in various embodiments of the present invention, angles A and B may be within a range of about 15 degrees to about 70 degrees; however, the scope of the present invention is not so limited.First end 207 meetsfirst side 201 at afirst transition 211 andsecond end 209 meetssecond side 203 at asecond transition 213.First transition 211 defines a radius R1 andsecond transition 213 defines a radius R2. Note that radius R1 may be the same as or different from radius R2. In the illustrated embodiment, radius R1 and radius R2 are greater than about 3 millimeters. It should be noted that radius R1 and radius R2 are preferably not so large as to cause angles A and B, respectively, to be outside of the range of about 15 degrees to about 70 degrees. - Referring again to
FIG. 2 , opening 105 defined bycoiled tubing 107 comprises afirst side 215 and asecond side 217 that extend generally parallel tolongitudinal axis 205 ofcoiled tubing 107. As best shown inFIG. 6 , which is an enlarged, top, plan view of a portion ofopening 105, opening 105 further includes afirst end 219 that is angled at angle A with respect tofirst side 215, i.e., generally corresponding to angle A ofinsert 103. Referring toFIG. 7 , which is an enlarged, top plan view of a portion ofopening 105, opening 105 further includes asecond end 221 that is angled at angle B with respect tosecond side 217, i.e., generally corresponding to angle B ofinsert 103.First end 219 meetsfirst side 215 at afirst transition 223 andsecond end 221 meetssecond side 217 at asecond transition 225.First transition 223 of opening 105 exhibits generally the same radius R1 asfirst transition 211 ofinsert 103.Second transition 225 of opening 105 exhibits generally the same radius R2 assecond transition 213 ofinsert 103. - Referring again to
FIG. 2 ,coiled tubing 107 defines achamfer 227 about opening 105.Insert 103 defines achamfer 229 alongfirst end 207 ofinsert 103.Insert 103 further defines achamfer 231 alongsecond end 209 ofinsert 103. Wheninsert 103 is mated withcoiled tubing 107 inopening 105, as shown inFIG. 1 ,chamfers insert 103 andcoiled tubing 107 whereinsert 103 is welded and joined to coiledtubing 107. For example, as shown inFIG. 8A , which is a cross-sectional view taken along theline 8A-8A inFIG. 1 , a joint 801 extends along and betweenfirst sides second sides FIG. 8B , which is a view corresponding to that ofFIG. 8A , insert 103 is joined to coiledtubing 107 byweldments joints weldments - Similarly, as shown in
FIG. 9A , which is a cross-sectional view taken along theline 9A-9A inFIG. 1 , a joint 901 extends along and betweenfirst end 207 ofinsert 103 andfirst end 219 ofopening 105 and exhibits an included angle E. Similarly, joint 1001 extends along and betweensecond end 209 ofinsert 103 andsecond end 221 ofopening 105 and exhibits an included angle F, as shown inFIG. 10A , which is a cross-sectional view taken along theline 10A-10A inFIG. 1 . Note that angle E may correspond to or be different than angle F. Preferably, angles E and F are about 90 degrees to allow full weld penetration and to inhibit fatigue-related failure of coiledtubing assembly 101. As shown inFIG. 9B , which is a view corresponding toFIG. 9A , insert 103 is joined to coiledtubing 107 byweldment 903 where joint 901 existed prior toweldment 903 being generated. As shown inFIG. 10B , which is a view corresponding toFIG. 10A , insert 103 is joined to coiledtubing 107 byweldment 1003 where joint 1001 existed prior toweldment 1003 being generated. -
FIG. 11 is a cross-sectional view taken along the line 11-11 inFIG. 1 , whileFIG. 12 is a cross-sectional view taken along the line 12-12 inFIG. 1 . Referring in particular toFIGS. 3 , 11, and 12,insert 103 includes a fitting 301 that defines a capillary window 111 (shown only inFIGS. 3 and 11 ) communicating between an interior ofcoiled tubing assembly 101 and an environment external to coiledtubing assembly 101. Fitting 301 andcapillary window 111 are also shown inFIGS. 8A and 8B . As shown inFIG. 13 ,capillary tube 1301 is received incapillary window 111 such that an environment external to coiledtubing assembly 101 is communicated viacapillary window 111 tocapillary tube 1301.Capillary tube 1301 is used in the measurement of various characteristics of the environment external to coiledtubing assembly 101, such as temperature, pressure, or the like. For example,capillary tube 1301 may convey pressure, corresponding to the pressure of the environment external to coiledtubing assembly 101, to a pressure sensor that may be located insidecoiled tubing 107 or proximate a wellhead at a surface of a well.Capillary window 111 may be configured to allow a pressure test fixture, a screen, a burst plug, or the like to be fitted tocapillary window 111. - As discussed herein, opening 105 of
coiled tubing 107 and insert 103 incorporate particular features that inhibit fatigue-related failure of such coiled tubing assemblies. Generally, fatigue cracks tend to propagate radially in coiled tubing, i.e., generally circumferentially about the coiled tubing perpendicular to a longitudinal axis of the coiled tubing, such aslongitudinal axis 205 ofcoiled tubing 107. Weldments reduce fatigue life and tend to fail along heat affected zones adjacent weldments where the material of the coiled tubing is more brittle. Thus, axial weldments, i.e., weldments that are generally parallel to a longitudinal axis of the coiled tubing, such aslongitudinal axis 205 ofcoiled tubing 107, perform better than radial weldments. As shown in at leastFIG. 2 , ends 207 and 209 ofinsert 103 and ends 219 and 221 ofopening 105 are configured to be non-perpendicular tolongitudinal axis 205 ofcoiled tubing 107, so that the heat affected zones adjacent weldments 903 (shown inFIG. 9B) and 1003 (shown inFIG. 10B ) are not aligned with a plane of crack propagation. Such configurations inhibit the likelihood of crack initiation and propagation in coiledtubing assembly 101 and increase the fatigue life ofcoiled tubing assembly 101. Moreover, referring toFIG. 3 , insert 103 tapers from greater thicknessesproximate fitting 301 to thinner thicknesses proximatefirst end 207 andsecond end 209. Fitting 301 is also preferably thinner, rather than thicker. These features allow fitting 301 to be more flexible and to reduce the amount of heat needed to generateweldments 805 and 807 (shown inFIG. 8B )proximate fitting 301. - It should be noted that the present invention is not limited to the particular shape of
insert 103 depicted in the drawings. For example, an insert for the present coiled tubing assembly may exhibit shapes such as those depicted inFIGS. 14 and 15 . In the embodiment ofFIG. 14 , aninsert 1401 includes afirst end 1403 and asecond end 1405 that exhibit semi-circular shapes. In the embodiment ofFIG. 15 , aninsert 1501 includes afirst end 1503 and asecond end 1505 that exhibit angular shapes havingcentral apexes inserts insert 103, shown in at leastFIG. 1 . Irrespective of the particular shape of the insert, the opening defined by the coiled tubing, e.g., opening 105 ofcoiled tubing 107, exhibits the same general shape as the insert used with the coiled tubing to make up the coiled tubing assembly. It should be noted that the present invention contemplates various shapes forinsert 103 and opening 105 ofcoiled tubing 107 other than the shapes shown in the figures. -
Coiled tubing assembly 101 may include one insert and corresponding capillary tube, such asinsert 103 andcapillary tube 1301, or coiledtubing assembly 101 may include many inserts and corresponding capillary tubes. While there are many ways to assemble coiledtubing assembly 101,FIGS. 16-25 depict one particular method of assembling coiledtubing assembly 101 and associated devices used in the method. It should be noted that, while the description herein relates to coiledtubing assembly 101 includinginsert 103, the description applies equally to any insert contemplated by the present invention. - Referring to
FIG. 16 ,coiled tubing 107 is provided withopening 105. A primary pullingtool 1601 with a first pullingcable 1603 attached to afore end 1605 thereof is disposed within coiledtubing 107. A second pullingcable 1607 is attached to anaft end 1609 of primary pullingtool 1601 and is attached through afirst clip 1611 of a secondary pullingtool 1613. Acapillary tube 1615, which corresponds tocapillary tube 1301, is attached to asecond clip 1617 of secondary pullingtool 1613. As primary pullingtool 1601 is advanced through coiledtubing 107, generally in a direction corresponding toarrow 1619,capillary tube 1615 is pulled into coiledtubing 107 from aspool 1621. At the next opening ofcoiled tubing 107, another secondary pullingtool 1613 is attached to second pullingcable 1607 viafirst clip 1611 thereof, so that another capillary tube may be pulled into coiledtubing 107. -
FIGS. 17-20 depict an illustrative embodiment of secondary pullingtool 1613.FIG. 17 is an end, elevational view of secondary pullingtool 1613, taken generally in a direction corresponding to arrowFIG. 17 inFIG. 16 .FIG. 18 is an end, elevational view of secondary pullingtool 1613, taken generally in a direction corresponding to arrowFIG. 18 inFIG. 16 .FIG. 19 is a cross-sectional view of secondary pullingtool 1613, taken along the line 19-19 inFIG. 17 .FIG. 20 is a cross-sectional view of secondary pullingtool 1613, taken along the line 20-20 in FIG. 19. Secondary pullingtool 1613 comprises abody 1701 defining afirst bore 1703 that extends into and terminates inbody 1701 from afirst end 1705 thereof.Body 1701 further defines asecond bore 1801 that extends intobody 1701 from asecond end 1803 thereof and terminates at aside surface 2001 ofbody 1701, extending throughside surface 2001.Capillary tube 1615 is received infirst bore 1703 and is retained therein by one ormore fasteners 1901, which may be in the form of set screws. Second pullingcable 1607 is received insecond bore 1801 and is retained therein by one ormore fasteners 1903, which may also be in the form of set screws. - In one embodiment, as depicted in
FIG. 21 , acapillary tube guide 2101 is disposed on opening 105 ofcoiled tubing 107 to protectcapillary tube 1615 from damage by contact with the edges of opening 105 after secondary pullingtool 1613 is received within coiledtubing 107.FIGS. 22-25 depict various views of an exemplary embodiment ofcapillary tube guide 2101.FIG. 22 is an end, elevational view ofcapillary tube guide 2101 taken generally in a direction corresponding to arrowFIG. 22 ofFIG. 23 .FIG. 23 is a top, plan view ofcapillary tube guide 2101, whileFIG. 24 is an end, elevational view ofcapillary tube guide 2101 taken generally in a direction corresponding to arrowFIG. 24 ofFIG. 23 .FIG. 25 depicts a cross-sectional view ofcapillary tube guide 2101, taken along line 25-25 inFIG. 23 , along with a view ofcoiled tubing 107 corresponding to the view ofFIG. 16 .Capillary tube guide 2101 comprises afirst leg 2201 and asecond leg 2203 extending from abase 2205.First leg 2201,second leg 2203, and base 2205 define aslot 2303, through whichcapillary tube 1615 passes whencapillary tube guide 2101 is in use. As best shown inFIGS. 22 and 25 , portions offirst leg 2201,second leg 2203, and base 2205 that defineslot 2303 are rounded, curved, radiused, or the like to inhibit damage tocapillary tubing 1615 whencapillary tube guide 2101 is in use. In the illustrated embodiment, aprotrusion 2207 extends from alower surface 2209 ofcapillary tube guide 2101 that interfaces with opening 105 ofcoiled tubing 107 to positioncapillary tube guide 2101 properly with respect to coiledtubing 107. - The particular embodiments disclosed above are illustrative only, as the invention may be modified and practiced in different but equivalent manners apparent to those skilled in the art having the benefit of the teachings herein. Therefore, no limitations are intended to the details of construction or design herein shown, other than as described in the claims below.
Claims (20)
1. A coiled tubing assembly, comprising:
a coiled tubing having a side wall that defines an opening, the coiled tubing having a longitudinal axis; and
an insert covering the opening and affixed to the coiled tubing, the insert defining a capillary window therethrough;
wherein the opening and the insert include ends that are non-perpendicular to the longitudinal axis.
2. The coiled tubing assembly of claim 1 , wherein the opening and the insert include ends that exhibit angles with respect the longitudinal axis within a range of about 15 degrees to about 70 degrees.
3. The coiled tubing assembly of claim 1 , wherein the opening includes a side and a transition extending between the side of the opening and the end of the opening and the insert includes a side and a transition extending between the side of the insert and the end of the insert, the transitions exhibiting radii that are greater than about 3 millimeters.
4. The coiled tubing assembly of claim 1 , wherein the opening and the insert include ends that exhibit angles with respect the longitudinal axis of about 30 degrees.
5. The coiled tubing assembly of claim 1 , further comprising a capillary tube extending from the capillary window, such that an environment external to the coiled tubing assembly may be communicated to the capillary tube via the capillary window.
6. The coiled tubing assembly of claim 1 , wherein the insert includes a fitting that defines the capillary window.
7. The coiled tubing assembly of claim 6 , wherein the insert tapers from a greater thickness proximate the fitting to a thinner thickness proximate the ends of the insert.
8. The coiled tubing assembly of claim 1 , wherein the insert is affixed to the coiled tubing by one or more weldments.
9. The coiled tubing assembly of claim 1 , wherein the ends of the opening and the insert are semi-circular.
10. The coiled tubing assembly of claim 1 , wherein the ends of the opening and the insert are angular shapes having central apexes.
11. A method of making a coiled tubing assembly, comprising:
providing a coiled tubing defining a side wall opening;
pulling a capillary tube into an interior of the coiled tubing through the side wall opening;
attaching the capillary tube to a capillary window of an insert for covering the side wall opening; and
affixing the insert to the coiled tubing.
12. The method of claim 11 , wherein pulling the capillary tube into the interior of the coiled tubing is accomplished by:
providing a primary pulling tool disposed within the interior of the coiled tubing;
attaching a secondary pulling cable between the primary pulling tool and a secondary pulling tool;
attaching the capillary tube to the secondary pulling tool; and
advancing the primary pulling tool within the interior of the coiled tubing away from the side wall opening.
13. The method of claim 12 , wherein the primary pulling tool is affixed to a primary pulling cable for advancing the primary pulling tool within the interior of the coiled tubing.
14. The method of claim 12 , wherein attaching the secondary pulling cable between the primary pulling tool and the secondary pulling tool is accomplished by:
attaching a first end of the secondary pulling cable to the primary pulling tool;
disposing the secondary pulling cable through a first bore in the secondary pulling tool, the bore extending into a body of the secondary pulling tool between and through a first end of the body and a side surface of the body; and
advancing one or more fasteners into contact with the secondary pulling cable to retain the secondary pulling cable within the first bore.
15. The method of claim 12 , wherein attaching the capillary tube to the secondary pulling tool is accomplished by:
disposing the capillary tube into a second bore in the secondary pulling tool, the bore extending into a body of the secondary pulling tool from a second end of the body and terminating within the body; and
advancing one or more fasteners into contact with the capillary tube to retain the capillary tube within the second bore.
16. The method of claim 12 , further comprising:
advancing the primary pulling tool along the interior of the coiled tubing until the secondary pulling cable is adjacent a second side wall opening;
attaching a second secondary pulling tool to the secondary pulling cable; and
attaching a second capillary tube to the second secondary pulling tool.
17. The method of claim 11 , further comprising disposing a capillary tube guide adjacent the side wall opening prior to pulling the capillary tube into the interior of the coiled tubing, such that the capillary tube contacts the capillary tube guide rather than an edge of the side wall opening as the capillary tube is pulled into the interior of the coiled tubing.
18. The method of claim 17 , wherein the capillary tube guide comprises:
a base;
a first leg extending from the base;
a second leg extending from the base, the first leg, the second leg, and the base defining a groove for receiving the capillary tube; and
a protrusion extending from the first leg, the second leg, and the base configured to be received in the side wall opening.
19. The method of claim 11 , wherein the side wall opening and the insert include ends that are non-perpendicular to a longitudinal axis of the coiled tubing.
20. The method of claim 11 , wherein the side wall opening and the insert include ends that exhibit angles with respect a longitudinal axis of the coiled tubing within a range of about 15 degrees to about 70 degrees.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/711,811 US20110073210A1 (en) | 2009-09-29 | 2010-02-24 | Coiled tubing having a capillary window and method for making same |
CA2716077A CA2716077C (en) | 2009-09-29 | 2010-09-28 | Coiled tubing having a capillary window and method for making same |
US14/231,662 US9581724B2 (en) | 2009-09-29 | 2014-03-31 | Method for making a coiled tubing assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24681509P | 2009-09-29 | 2009-09-29 | |
US12/711,811 US20110073210A1 (en) | 2009-09-29 | 2010-02-24 | Coiled tubing having a capillary window and method for making same |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/231,662 Division US9581724B2 (en) | 2009-09-29 | 2014-03-31 | Method for making a coiled tubing assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110073210A1 true US20110073210A1 (en) | 2011-03-31 |
Family
ID=43778959
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/711,811 Abandoned US20110073210A1 (en) | 2009-09-29 | 2010-02-24 | Coiled tubing having a capillary window and method for making same |
US14/231,662 Active 2031-07-15 US9581724B2 (en) | 2009-09-29 | 2014-03-31 | Method for making a coiled tubing assembly |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/231,662 Active 2031-07-15 US9581724B2 (en) | 2009-09-29 | 2014-03-31 | Method for making a coiled tubing assembly |
Country Status (2)
Country | Link |
---|---|
US (2) | US20110073210A1 (en) |
CA (1) | CA2716077C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140230233A1 (en) * | 2013-02-20 | 2014-08-21 | Halliburton Energy Services | Method for Installing Multiple Sensors in Coiled Tubing |
US9121261B2 (en) | 2013-02-20 | 2015-09-01 | Halliburton Energy Services, Inc. | Coiled tubing system with multiple integral pressure sensors and DTS |
US20160084078A1 (en) * | 2014-09-24 | 2016-03-24 | Baker Hughes Incorporated | Method and System for Hydraulic Fracture Diagnosis with the use of a Coiled Tubing Dual Isolation Service Tool |
US9302693B2 (en) | 2013-02-20 | 2016-04-05 | Halliburton Energy Services, Inc. | Coiled tubing servicing tool |
US9359833B2 (en) | 2013-02-20 | 2016-06-07 | Halliburton Energy Services, Inc. | Method for installing multiple fiber optic cables in coiled tubing |
US9581724B2 (en) | 2009-09-29 | 2017-02-28 | Schlumberger Technology Corporation | Method for making a coiled tubing assembly |
US9874084B2 (en) | 2013-08-14 | 2018-01-23 | Halliburton Energy Services, Inc. | Multifunction end cap for coiled tube telemetry |
US9976402B2 (en) | 2014-09-18 | 2018-05-22 | Baker Hughes, A Ge Company, Llc | Method and system for hydraulic fracture diagnosis with the use of a coiled tubing dual isolation service tool |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US304930A (en) * | 1884-09-09 | Water and waste pipe | ||
US345073A (en) * | 1886-07-06 | Coenblius j | ||
US1553958A (en) * | 1920-08-10 | 1925-09-15 | United Concrete Pipe Company | Diffusion outlet for conduits |
US3364952A (en) * | 1965-06-11 | 1968-01-23 | Pfoff And Kendall | Handhole closure assembly |
US3463194A (en) * | 1967-08-17 | 1969-08-26 | Textron Inc | Flush duct insert |
US3550637A (en) * | 1968-06-10 | 1970-12-29 | Pfaff & Kendall | Handhole access assembly |
US3724505A (en) * | 1971-05-11 | 1973-04-03 | G Jahn | Pipe or conduit clean out trap assembly |
US3755977A (en) * | 1971-10-29 | 1973-09-04 | Powerlite Devices Ltd | Frangible lighting pole |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2339671A (en) * | 1943-08-20 | 1944-01-18 | Carl R Bergman | Cable puller |
US3898011A (en) * | 1974-05-30 | 1975-08-05 | Greenlee Tool Company | Wire grip |
US4101114A (en) * | 1977-10-12 | 1978-07-18 | Carpenter Rigging And Supply Company, Inc. | Cable pulling system |
US4368910A (en) * | 1980-12-08 | 1983-01-18 | Harvey Hubbell Incorporated | Grip for pulling fiber optic cable and method of inserting the cable into the grip |
JP2567757B2 (en) * | 1991-06-27 | 1996-12-25 | 未来工業株式会社 | Method of laying wiring / piping material in pipe, laying device for this, and pipe for wiring / piping used for this |
US6116085A (en) * | 1998-06-09 | 2000-09-12 | Aec East | Instrumentation tubing string assembly for use in wellbores |
US7770653B2 (en) * | 2005-06-08 | 2010-08-10 | Bj Services Company U.S.A. | Wellbore bypass method and apparatus |
GB0614412D0 (en) * | 2006-07-20 | 2006-08-30 | Thomas Elfed | Laying network cables in sewers |
US20110073210A1 (en) | 2009-09-29 | 2011-03-31 | Schlumberger Technology Corporation | Coiled tubing having a capillary window and method for making same |
US9291031B2 (en) * | 2010-05-19 | 2016-03-22 | W. Lynn Frazier | Isolation tool |
US9359833B2 (en) * | 2013-02-20 | 2016-06-07 | Halliburton Energy Services, Inc. | Method for installing multiple fiber optic cables in coiled tubing |
-
2010
- 2010-02-24 US US12/711,811 patent/US20110073210A1/en not_active Abandoned
- 2010-09-28 CA CA2716077A patent/CA2716077C/en not_active Expired - Fee Related
-
2014
- 2014-03-31 US US14/231,662 patent/US9581724B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US304930A (en) * | 1884-09-09 | Water and waste pipe | ||
US345073A (en) * | 1886-07-06 | Coenblius j | ||
US1553958A (en) * | 1920-08-10 | 1925-09-15 | United Concrete Pipe Company | Diffusion outlet for conduits |
US3364952A (en) * | 1965-06-11 | 1968-01-23 | Pfoff And Kendall | Handhole closure assembly |
US3463194A (en) * | 1967-08-17 | 1969-08-26 | Textron Inc | Flush duct insert |
US3550637A (en) * | 1968-06-10 | 1970-12-29 | Pfaff & Kendall | Handhole access assembly |
US3724505A (en) * | 1971-05-11 | 1973-04-03 | G Jahn | Pipe or conduit clean out trap assembly |
US3755977A (en) * | 1971-10-29 | 1973-09-04 | Powerlite Devices Ltd | Frangible lighting pole |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9581724B2 (en) | 2009-09-29 | 2017-02-28 | Schlumberger Technology Corporation | Method for making a coiled tubing assembly |
US20140230233A1 (en) * | 2013-02-20 | 2014-08-21 | Halliburton Energy Services | Method for Installing Multiple Sensors in Coiled Tubing |
US9121261B2 (en) | 2013-02-20 | 2015-09-01 | Halliburton Energy Services, Inc. | Coiled tubing system with multiple integral pressure sensors and DTS |
US9302693B2 (en) | 2013-02-20 | 2016-04-05 | Halliburton Energy Services, Inc. | Coiled tubing servicing tool |
US9359833B2 (en) | 2013-02-20 | 2016-06-07 | Halliburton Energy Services, Inc. | Method for installing multiple fiber optic cables in coiled tubing |
US9359834B2 (en) * | 2013-02-20 | 2016-06-07 | Halliburton Energy Services, Inc. | Method for installing multiple sensors in unrolled coiled tubing |
US9428974B2 (en) | 2013-02-20 | 2016-08-30 | Halliburton Energy Services, Inc. | Coiled tubing servicing tool |
US9874084B2 (en) | 2013-08-14 | 2018-01-23 | Halliburton Energy Services, Inc. | Multifunction end cap for coiled tube telemetry |
US9976402B2 (en) | 2014-09-18 | 2018-05-22 | Baker Hughes, A Ge Company, Llc | Method and system for hydraulic fracture diagnosis with the use of a coiled tubing dual isolation service tool |
US20160084078A1 (en) * | 2014-09-24 | 2016-03-24 | Baker Hughes Incorporated | Method and System for Hydraulic Fracture Diagnosis with the use of a Coiled Tubing Dual Isolation Service Tool |
US9708906B2 (en) * | 2014-09-24 | 2017-07-18 | Baker Hughes Incorporated | Method and system for hydraulic fracture diagnosis with the use of a coiled tubing dual isolation service tool |
Also Published As
Publication number | Publication date |
---|---|
CA2716077A1 (en) | 2011-03-29 |
US9581724B2 (en) | 2017-02-28 |
CA2716077C (en) | 2014-02-18 |
US20140208570A1 (en) | 2014-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9581724B2 (en) | Method for making a coiled tubing assembly | |
EP1532474B1 (en) | Marking of pipe joints | |
US20060273586A1 (en) | Coupled connection with an externally supported pin nose seal | |
US7980303B2 (en) | Laminate pressure containing body for a well tool | |
US7350565B2 (en) | Self-expandable cylinder in a downhole tool | |
EP3123071B1 (en) | Coupling assembly and associated method | |
CA2549541C (en) | Mass isolation joint for electrically isolating a downhole tool | |
US10689941B2 (en) | Downhole tubular assembly of a well tubular structure | |
US8454057B2 (en) | Threaded end connector attachment for an end of a tube | |
US20070062693A1 (en) | System, method, and apparatus for degassing tool for coal bed methane gas wells | |
US7237809B2 (en) | Coiled tubing connector | |
AU2024204478A1 (en) | Lateral tubing support of a multi-lateral junction assembly | |
EP2802732B1 (en) | Nested dual drill pipe | |
EP3227519B1 (en) | A connection and protective ring therefor | |
US11371308B2 (en) | Apparatus for connecting a tool string to coiled tubing in downhole operations | |
AU2011239247B2 (en) | A downhole centraliser | |
CA2734376C (en) | Well assembly with a millable member in an opening | |
US20160130907A1 (en) | High Pressure Swell Seal | |
US20120119484A1 (en) | System and method for coupling pipes | |
US11873687B2 (en) | Centralizer with elongated rods | |
US11933116B2 (en) | Eccentric centralizer | |
EP2599954A2 (en) | Probe packer and method of using same | |
Hall et al. | An Internal Coaxil Cable Seal System |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SCHLUMBERGER TECHNOLOGY CORPORATION, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:STRETCH, MITCHEL;KATHOL, NATHAN;NGUY, VI;REEL/FRAME:024341/0295 Effective date: 20100426 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |