CA2586609A1 - Generating a geometric database of coiled tubing for use in designing service of the coiled tubing - Google Patents
Generating a geometric database of coiled tubing for use in designing service of the coiled tubingInfo
- Publication number
- CA2586609A1 CA2586609A1 CA002586609A CA2586609A CA2586609A1 CA 2586609 A1 CA2586609 A1 CA 2586609A1 CA 002586609 A CA002586609 A CA 002586609A CA 2586609 A CA2586609 A CA 2586609A CA 2586609 A1 CA2586609 A1 CA 2586609A1
- Authority
- CA
- Canada
- Prior art keywords
- coiled tubing
- real time
- geometric database
- data
- geometric
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract 46
- 238000012544 monitoring process Methods 0.000 claims abstract 13
- 238000007689 inspection Methods 0.000 claims abstract 10
- 230000007547 defect Effects 0.000 claims abstract 8
- 238000005553 drilling Methods 0.000 claims abstract 6
- 238000005259 measurement Methods 0.000 claims 15
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- 230000009172 bursting Effects 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000011065 in-situ storage Methods 0.000 claims 2
- 238000011068 loading method Methods 0.000 claims 2
- 239000000463 material Substances 0.000 claims 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
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
- E21B12/00—Accessories for drilling tools
- E21B12/02—Wear indicators
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
- G01B21/12—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters of objects while moving
Abstract
Methods for generating geometric databases of coiled tubing inspection data and using the data in job design, real time monitoring and automated feedback control of operations are described. One method includes creating a grid of spatial positions on a length of coiled tubing as it traverses through an inspection apparatus having a plurality of sensors for detecting defects in the coiled tubing. Real time data may be compared to historical or nominal data for the coiled tubing. Another method includes monitoring, in real time or near real time, the status of tubing dimension (thickness, diameter, ovality, shape) during a coiled tubing operation, such as acidizing, fracturing, high pressure operations, drilling, and wellbore cleanouts.
Claims (43)
1. A method comprising:
(a) establishing a geometric database of coiled tubing inspection data; and (b) using the geometric database in designing coiled tubing services.
(a) establishing a geometric database of coiled tubing inspection data; and (b) using the geometric database in designing coiled tubing services.
2. The method of claim 1 wherein the establishing a geometric database comprises creating a grid of spatial measurement values on a length of coiled tubing as the coiled tubing traverses through an inspection apparatus having a plurality of sensors for detecting defects in the coiled tubing.
3. The method of claim 1 wherein the establishing a geometric database comprises creating a grid of spatial measurement values on a length of coiled tubing as the coiled tubing traverses through an inspection apparatus having a plurality of sensors for measuring coiled tubing geometric parameters.
4. The method of claim 1 wherein the establishing a geometric database comprises collecting data from the coiled tubing selected from one or more of (a) a length attribute that identifies the exact location (thereafter "section") along the coiled tubing string where the geometry attributes belong to;
(b) one or a plurality of wall thickness attributes which are obtained from the measurements along the circumference of the coiled tubing section;
(c) one or a plurality of diameter attributes which are obtained from the measurements along the circumference of the coiled tubing section;
(d) one or a plurality of polar angle attributes which identify the circumferential positions of wall thickness and the diameter attributes, wherein the polar angles for the wall thickness attributes may or may not correspond to that of the diameter attributes;
(e) one polar angle attribute that identifies the location of the seam weld location along the circumference of the coiled tubing section;
(f) a time attribute that identifies when the measurements are taken;
(g) a string number attribute may be included to identify the particular coiled tubing string;
(h) one or a plurality of attributes which identify the original (as-manufactured) coiled tubing string makeup, such as OD, nominal wall thickness, section length, tubing grade, and the like;
(i) one or a plurality of attributes that identify the fatigue life, triaxial stress status, residual stress status, and the like; and (j) one or a plurality of attributes that identify where a particular section of coiled tubing has defects.
(k) one or a plurality of attributes that identify where a particular section of coiled tubing has been weakened due to attack from hydrogen sulphide.
(b) one or a plurality of wall thickness attributes which are obtained from the measurements along the circumference of the coiled tubing section;
(c) one or a plurality of diameter attributes which are obtained from the measurements along the circumference of the coiled tubing section;
(d) one or a plurality of polar angle attributes which identify the circumferential positions of wall thickness and the diameter attributes, wherein the polar angles for the wall thickness attributes may or may not correspond to that of the diameter attributes;
(e) one polar angle attribute that identifies the location of the seam weld location along the circumference of the coiled tubing section;
(f) a time attribute that identifies when the measurements are taken;
(g) a string number attribute may be included to identify the particular coiled tubing string;
(h) one or a plurality of attributes which identify the original (as-manufactured) coiled tubing string makeup, such as OD, nominal wall thickness, section length, tubing grade, and the like;
(i) one or a plurality of attributes that identify the fatigue life, triaxial stress status, residual stress status, and the like; and (j) one or a plurality of attributes that identify where a particular section of coiled tubing has defects.
(k) one or a plurality of attributes that identify where a particular section of coiled tubing has been weakened due to attack from hydrogen sulphide.
5. The method of claim 1 comprising adding real time or near real time data to the geometric database during the provision of the coiled tubing services.
6. The method of claim 5 comprising comparing data in the geometric database with real-time data to determine changes in the coiled tubing.
7. The method of claim 1 wherein the coiled tubing services is selected from acidizing, fracturing, high pressure operations, drilling, and clean-out.
8. The method of claim 1 comprising monitoring real time or near real time coiled tubing mechanical integrity by using data in the geometric database to determine in-situ coiled tubing triaxial stress limits for coiled tubing under the combined loadings of axial tension or compression, bursting pressure or collapse pressure.
9. The method of claim 1 comprising monitoring real-time or near real-time coiled tubing mechanical integrity by using data in the geometric database to determine fatigue life of coiled tubing.
10. The method of claim 1 comprising monitoring real-time or near real-time coiled tubing mechanical integrity by using data in the geometric database to determine effects of corrosive material on the coiled tubing.
11. The method of claim 10 wherein the corrosive material includes a non-zero percentage of hydrogen sulphide.
12. The method of claim 1 comprising using real time measurement, and/or real time mechanical integrity monitoring to provide active feedback control of movement of the coiled tubing through controlling the movement of an injector; or to provide active feedback control of the operation pressures, such as the increase or decrease of circulation pressure, or the increase or decrease of wellhead pressure.
13. A method comprising:
(a) monitoring, in real time or near real time, one or more coiled tubing parameters during a coiled tubing operation; and (b) using change or lack of change in the one or more parameters to identify potential defects on the coiled tubing.
(a) monitoring, in real time or near real time, one or more coiled tubing parameters during a coiled tubing operation; and (b) using change or lack of change in the one or more parameters to identify potential defects on the coiled tubing.
14. The method of claim 13 wherein the one or more coiled tubing parameters are selected from thickness, diameter, ovality, shape and combinations thereof
15. The method of claim 13 wherein the coiled tubing operation is selected from acidizing, fracturing, high pressure operations, drilling, and wellbore cleanouts.
16. The method of claim 13 wherein the coiled tubing operation takes place in a wellbore containing a non-zero percentage of hydrogen sulphide or carbon dioxide.
17. The method of claim 13 wherein the monitoring comprises displaying human readable trends of one or more of the parameters.
18. The method of claim 13 wherein the monitoring is carried out during injection of the coiled tubing into a well bore.
19. A method comprising:
(a) establishing a geometric database for a coiled tubing string using measurement data;
(b) monitoring one or more tubing dimension parameters in real time during a coiled tubing operation;
(c) using the real time measurements to identify potential defects on the coiled tubing; and (d) using the geometric database and real time measurements to evaluate the criticality of the defect with regard to the coiled tubing operation.
(a) establishing a geometric database for a coiled tubing string using measurement data;
(b) monitoring one or more tubing dimension parameters in real time during a coiled tubing operation;
(c) using the real time measurements to identify potential defects on the coiled tubing; and (d) using the geometric database and real time measurements to evaluate the criticality of the defect with regard to the coiled tubing operation.
20. The method of claim 19 comprising using the geometric database for trending analysis.
21. The method of claim 19 comprising comparing the data in the geometric database to the real time measurements.
22. The method of claim 19 comprising displaying the trending analysis.
23. The method of claim 19 wherein the coiled tubing operation is selected from acidizing, fracturing, high pressure operations, drilling, and clean-out.
24. A method comprising:
(a) establishing a geometric database for a coiled tubing string using measurement data during a coiled tubing operation; and (b) using the geometric database in real time to modify parameters of the coiled tubing operation.
(a) establishing a geometric database for a coiled tubing string using measurement data during a coiled tubing operation; and (b) using the geometric database in real time to modify parameters of the coiled tubing operation.
25. The method of claim 24 comprising using the geometric database in conjunction with other real time operation parameters to predict potential operation risks.
26. The method of claim 24 comprising using feedback control to reduce or eliminate the operation risks.
27. The method of claim 24 wherein the using of feedback control comprises using the real time geometric database in a real time tubing integrity monitoring software, wherein the feedback control monitors operation parameters of the coiled tubing operation.
28. The method of claim 24 wherein the establishing a geometric database comprises creating a grid of spatial measurement values in real time on a length of coiled tubing as the coiled tubing traverses through an inspection apparatus having a plurality of sensors for detecting defects in the coiled tubing.
29. The method of claim 24 comprising comparing data in the geometric database with real time data to determine changes in the coiled tubing.
30. The method of claim 24 comprising trending the data in the geometric database and the real time data.
31. The method of claim 24 wherein the coiled tubing operation is selected from acidizing, fracturing, high pressure operations, drilling, and clean-out.
32. A method comprising:
(a) establishing a geometric database of coiled tubing inspection data; and (b) using the geometric database for designing coiled tubing services, wherein the services are selected from fracturing, acidizing, coiled tubing drilling, and clean-out.
(a) establishing a geometric database of coiled tubing inspection data; and (b) using the geometric database for designing coiled tubing services, wherein the services are selected from fracturing, acidizing, coiled tubing drilling, and clean-out.
33. The method of claim 32 wherein the establishing a geometric database comprises creating a grid of spatial measurement values on a length of coiled tubing as the coiled tubing traverses through an inspection apparatus having a plurality of sensors for detecting defects in the coiled tubing.
34. The method of claim 32 wherein the establishing a geometric database comprises creating a grid of spatial measurement values on a length of coiled tubing as the coiled tubing traverses through an inspection apparatus having a plurality of sensors for measuring coiled tubing geometric parameters.
35. The method of claim 32 comprising adding real time or near real time data to the geometric database during the provision of the coiled tubing services.
36. The method of claim 32 comprising comparing data in the geometric database with real time data to determine changes in the coiled tubing.
37. The method of claim 32 comprising using the geometric database in real time to modify parameters of the coiled tubing operation.
38. The method of claim 32 comprising monitoring real time or near real time coiled tubing mechanical integrity by using data in the geometric database to determine in-situ coiled tubing triaxial stress limits for coiled tubing under the combined loadings of axial tension or compression, bursting pressure or collapse pressure.
39. The method of claim 32 comprising monitoring real time or near real time coiled tubing mechanical integrity by using data in the geometric database to determine fatigue life of coiled tubing.
40. The method of claim 32 comprising using real-time measurement, and/or real-time mechanical integrity monitoring to provide active feedback control of movement of the coiled tubing through controlling the movement of an injector or to provide active feedback control of coiled tubing operation parameters.
41. A method comprising:
(a) establishing a geometric database of coiled tubing inspection data;
and (b) updating the database during the life of the coiled tubing.
(a) establishing a geometric database of coiled tubing inspection data;
and (b) updating the database during the life of the coiled tubing.
42. A method comprising:
(a) evaluating a previous evolution of a geometric database between successive or different job runs; and (b) using knowledge of the previous evolution to estimate future evolution of the geometric database for future operations.
(a) evaluating a previous evolution of a geometric database between successive or different job runs; and (b) using knowledge of the previous evolution to estimate future evolution of the geometric database for future operations.
43. The method of claim 40 comprising using the estimate to determine suitability of a coiled tubing string for any new operation.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62568104P | 2004-11-05 | 2004-11-05 | |
| US60/625,681 | 2004-11-05 | ||
| US11/212,047 | 2005-08-25 | ||
| US11/212,047 US7357179B2 (en) | 2004-11-05 | 2005-08-25 | Methods of using coiled tubing inspection data |
| PCT/IB2005/053613 WO2006048841A1 (en) | 2004-11-05 | 2005-11-04 | Generating a geometric database of coiled tubing for use in designing service of the coiled tubing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2586609A1 true CA2586609A1 (en) | 2006-05-11 |
| CA2586609C CA2586609C (en) | 2011-08-09 |
Family
ID=36315138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2586609A Expired - Fee Related CA2586609C (en) | 2004-11-05 | 2005-11-04 | Generating a geometric database of coiled tubing for use in designing service of the coiled tubing |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7357179B2 (en) |
| CA (1) | CA2586609C (en) |
| EA (1) | EA011045B1 (en) |
| GB (1) | GB2434646B (en) |
| MX (1) | MX2007005374A (en) |
| NO (1) | NO339464B1 (en) |
| WO (1) | WO2006048841A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018191819A1 (en) * | 2017-04-18 | 2018-10-25 | Intelligent Wellhead Systems Inc. | An apparatus and method for inspecting coiled tubing |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110203803A1 (en) * | 2000-08-14 | 2011-08-25 | Warren Zemlak | Apparatus for subsea intervention |
| US7980306B2 (en) | 2005-09-01 | 2011-07-19 | Schlumberger Technology Corporation | Methods, systems and apparatus for coiled tubing testing |
| US7444861B2 (en) * | 2005-11-22 | 2008-11-04 | Halliburton Energy Services, Inc. | Real time management system for slickline/wireline |
| US20080077332A1 (en) * | 2006-09-25 | 2008-03-27 | Kenneth Ray Newman | Fatigue measurement method for coiled tubing & wireline |
| US7606666B2 (en) * | 2007-01-29 | 2009-10-20 | Schlumberger Technology Corporation | System and method for performing oilfield drilling operations using visualization techniques |
| US8176979B2 (en) * | 2008-12-11 | 2012-05-15 | Schlumberger Technology Corporation | Injection well surveillance system |
| US7873495B2 (en) * | 2009-02-24 | 2011-01-18 | Inspectech Corporation | Welding quality control and monitoring system |
| US8789585B2 (en) * | 2010-10-07 | 2014-07-29 | Schlumberger Technology Corporation | Cable monitoring in coiled tubing |
| WO2012103541A2 (en) * | 2011-01-28 | 2012-08-02 | Schlumberger Canada Limited | Pipe damage interpretation system |
| WO2012174057A1 (en) * | 2011-06-13 | 2012-12-20 | Schlumberger Canada Limited | Coiled tubing useful life monitor and technique |
| WO2015051225A1 (en) | 2013-10-03 | 2015-04-09 | Schlumberger Canada Limited | Pipe damage assessment system and method |
| GB201400967D0 (en) * | 2014-01-21 | 2014-03-05 | Parkburn Prec Handling Systems Ltd | Monitoring system |
| WO2015187923A1 (en) | 2014-06-04 | 2015-12-10 | Schlumberger Canada Limited | Pipe defect assessment system and method |
| US9671371B2 (en) | 2014-06-27 | 2017-06-06 | Schlumberger Technology Corporation | Anomaly recognition system and methodology |
| US20180266992A1 (en) * | 2014-12-11 | 2018-09-20 | Schlumberger Technology Corporation | Quantifying tubing defect severity |
| US9671370B2 (en) * | 2015-10-14 | 2017-06-06 | National Oilwell Varco, L.P. | System and method for detecting material loss in a tubular |
| US10877000B2 (en) | 2015-12-09 | 2020-12-29 | Schlumberger Technology Corporation | Fatigue life assessment |
| US11237132B2 (en) | 2016-03-18 | 2022-02-01 | Schlumberger Technology Corporation | Tracking and estimating tubing fatigue in cycles to failure considering non-destructive evaluation of tubing defects |
| WO2019245575A1 (en) * | 2018-06-22 | 2019-12-26 | Halliburton Energy Services, Inc. | Systems and methods for conducting a well intervention operation |
| WO2021194475A1 (en) * | 2020-03-24 | 2021-09-30 | Landmark Graphics Corporation | Systems and methods for borehole tubular design |
| US11732569B2 (en) * | 2021-07-28 | 2023-08-22 | Saudi Arabian Oil Company | Well tubing/casing corrosion deposits descaling model |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5A (en) * | 1836-08-10 | Thomas blancharjq | ||
| US5090039A (en) * | 1988-03-02 | 1992-02-18 | Atlantic Richfield Company | Inspecting coiled tubing for well operations |
| US5485745A (en) * | 1991-05-20 | 1996-01-23 | Halliburton Company | Modular downhole inspection system for coiled tubing |
| US5614825A (en) * | 1994-11-28 | 1997-03-25 | Industrial Sensors And Actuators | Magnetic flux leakage inspection apparatus with surface-responsive sensor mounting |
| US5826654A (en) | 1996-01-26 | 1998-10-27 | Schlumberger Technology Corp. | Measuring recording and retrieving data on coiled tubing system |
| US5767671A (en) | 1996-04-25 | 1998-06-16 | Halliburton Company | Method of testing the lifeline of coiled tubing |
| US5656786A (en) * | 1996-05-03 | 1997-08-12 | Ico, Inc. | Oilfield tubular inspection method and apparatus |
| US5914596A (en) | 1997-10-14 | 1999-06-22 | Weinbaum; Hillel | Coiled tubing inspection system |
| US6321596B1 (en) * | 1999-04-21 | 2001-11-27 | Ctes L.C. | System and method for measuring and controlling rotation of coiled tubing |
| US6450259B1 (en) * | 2001-02-16 | 2002-09-17 | Halliburton Energy Services, Inc. | Tubing elongation correction system & methods |
| US20030118230A1 (en) * | 2001-12-22 | 2003-06-26 | Haoshi Song | Coiled tubing inspection system using image pattern recognition |
| US6968905B2 (en) * | 2003-03-18 | 2005-11-29 | Schlumberger Technology Corporation | Distributed control system |
| WO2004090528A1 (en) * | 2003-04-08 | 2004-10-21 | Schlumberger Canada Limited | Method and apparatus for acoustically inspecting a tubular using elastromeric acoustic coupling |
-
2005
- 2005-08-25 US US11/212,047 patent/US7357179B2/en active Active
- 2005-11-04 GB GB0708568A patent/GB2434646B/en not_active Expired - Fee Related
- 2005-11-04 MX MX2007005374A patent/MX2007005374A/en active IP Right Grant
- 2005-11-04 CA CA2586609A patent/CA2586609C/en not_active Expired - Fee Related
- 2005-11-04 EA EA200701006A patent/EA011045B1/en not_active IP Right Cessation
- 2005-11-04 WO PCT/IB2005/053613 patent/WO2006048841A1/en active Application Filing
-
2007
- 2007-05-16 NO NO20072477A patent/NO339464B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018191819A1 (en) * | 2017-04-18 | 2018-10-25 | Intelligent Wellhead Systems Inc. | An apparatus and method for inspecting coiled tubing |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2007005374A (en) | 2007-07-04 |
| GB0708568D0 (en) | 2007-06-20 |
| NO20072477L (en) | 2007-06-04 |
| GB2434646B (en) | 2011-02-16 |
| US20060096753A1 (en) | 2006-05-11 |
| GB2434646A (en) | 2007-08-01 |
| NO339464B1 (en) | 2016-12-12 |
| US7357179B2 (en) | 2008-04-15 |
| CA2586609C (en) | 2011-08-09 |
| EA011045B1 (en) | 2008-12-30 |
| EA200701006A1 (en) | 2007-10-26 |
| WO2006048841A1 (en) | 2006-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2586609A1 (en) | Generating a geometric database of coiled tubing for use in designing service of the coiled tubing | |
| US9915128B2 (en) | Machines, systems, computer-implemented methods, and computer program products to test and certify oil and gas equipment | |
| EP2917127B1 (en) | Well integrity management using coupled engineering analysis | |
| Tao et al. | Law and countermeasures for the casing damage of oil production wells and water injection wells in Tarim Oilfield | |
| JP5603550B2 (en) | Method and system for evaluating screw connection group | |
| CN109815595B (en) | Underground pipe column of oil and gas field and hydrogen sulfide corrosion big data analysis method of wellhead gas transmission pipeline | |
| NO20140849A1 (en) | Procedure for testing non-uniform loads in pipes | |
| US10877000B2 (en) | Fatigue life assessment | |
| US20180266992A1 (en) | Quantifying tubing defect severity | |
| Van Wittenberghe | Experimental analysis and modelling of the fatigue behaviour of threaded pipe connections | |
| US20100005864A1 (en) | Method To Measure Tearing Resistance | |
| Liu et al. | A novel fatigue assessment of CT with defects based on magnetic flux leakage | |
| Crabtree et al. | Coiled tubing in sour environments: theory and practice | |
| Hampson et al. | Predicting coiled tubing life should consider diameter growth in addition to low-cycle fatigue | |
| Howard et al. | Systematic tracking of fatigue and crack growth to optimize drillstring reliability | |
| Li et al. | Fatigue of coiled tubing and its influencing factors: a comparative study | |
| Yang et al. | Reliability assessment of ultra-deep oil and gas wellbore casing using data statistics and numerical simulations | |
| CN113550741A (en) | Method for detecting minimum inner diameter of casing | |
| MacArthur et al. | Coiled Tubing NDT Inspection: Implementation, Experience and Results | |
| Feder | Best Practices for Avoiding Erosion in Annular Fracturing | |
| Akinsanya et al. | Cost-optimal planning of inspections and maintenance of production tubings subject to scale deterioration | |
| Arnold | Analytics-Driven Method for Injectivity Analysis in Tight and Heterogeneous Waterflooded Reservoir | |
| Thomeer et al. | Safe Coiled-Tubing Operations | |
| Liu et al. | Effect of surface defects and internal pressure on fatigue life of coiled tubing | |
| Zhaxybekov et al. | Innovative Approach of Coiled Tubing Pipe Integrity Control in Chrome Completion and Harsh Environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20191104 |