CN106050219B - A kind of buckling tubing string resistance measurement apparatus - Google Patents
A kind of buckling tubing string resistance measurement apparatus Download PDFInfo
- Publication number
- CN106050219B CN106050219B CN201610602047.4A CN201610602047A CN106050219B CN 106050219 B CN106050219 B CN 106050219B CN 201610602047 A CN201610602047 A CN 201610602047A CN 106050219 B CN106050219 B CN 106050219B
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- China
- Prior art keywords
- rack
- tubing string
- fixed
- analog casing
- pinch roller
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- 238000005259 measurement Methods 0.000 title claims abstract description 10
- 238000004088 simulation Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 description 11
- 238000005553 drilling Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 206010007247 Carbuncle Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004836 empirical method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- 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
- E21B47/007—Measuring stresses in a pipe string or casing
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of buckling tubing string resistance measurement apparatus, it is characterised in that：The longitudinal power device being capable of the vertical movement of proof stress sensor, the strain gauge lower end connection simulation tubing string, vertical stress can be measured, the simulation tubing string is located in analog casing, and its outer diameter is less than analog casing internal diameter, the analog casing top is fixed frame and is fixed on pinch roller, lower part and horizontal thrust axis pass through hinge constraint, the fixed frame is fixed in rack, the pinch roller fixed link keeps the relative position of pinch roller and rack constant jointly with fixed frame, the power device is fixed in rack, it being capable of controlled level thrust axis horizontal movement, and then change analog casing radius of curvature, the rack is contacted with analog casing horizontal segment.
Description
Technical field
The invention belongs to Oil-Gas Well Engineering fields, and in particular to a kind of buckling tubing string resistance measurement apparatus.
Background technique
In Process of Oil Well Drilling, the force analysis of well drilling pipe column be the emphasis studied in Drilling Design and operation process it
One.The comprehensive calculation and analysis of the processes such as, directional well TRAJECTORY CONTROL anti-oblique to straight well, the calculating of extended reach well frictional resistance, sleeve design has
It is significant.Currently, the tool of many mathematics and mechanics is used in the problem.Including infitesimal analysis method, finite elements
Method, finite difference calculus, Continuous beam theory etc..But the disagreement due to recognizing the process simplification means, on-site verification difficulty
Greatly, uncertain factor is more, and the calculating analysis of this process has very big problem.
Since oil well well track is not straight line.Vertical section, inclination section, steady tilted section, horizontal segment etc. can be generally divided into.Pipe
Column can be generated buckling by interior external carbuncle and gravity, vibration etc..Frictional resistance of the buckling tubing string in wellbore and casing is meter
One of emphasis in calculation.It generallys use empirical method and resistance caused by buckling is reduced to SimMan universal patient simulator consideration.This simplification
Method and actual conditions gap are larger, cannot accurately reflect actual conditions.
Experiment is the method for evaluating buckling tubing string frictional resistance.Can calculate tubing string various crooked hole tracks or itself
Under buckling with the frictional resistance of casing and wellbore.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of buckling tubing string resistance measurement apparatus, which can be simulated
Influence of the various bending sections to well drilling pipe column frictional resistance in wellbore, and it is able to verify that various theoretical methods and numerical simulation side
The accuracy that method calculates bending section frictional resistance.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows：
A kind of buckling tubing string resistance measurement apparatus, structure include longitudinal power device, strain gauge, simulation tubing string,
Analog casing, pinch roller, fixed frame, power device, horizontal thrust axis, pinch roller fixed link, rack, it is characterised in that：Described is vertical
To power device can the vertical movement of proof stress sensor, the described strain gauge lower end connection simulation tubing string can survey
Vertical stress is measured, the simulation tubing string is located in analog casing, and its outer diameter is less than analog casing internal diameter, the simulation set
Pipe top is fixed frame and is fixed on pinch roller, and by hinge constraint, the fixed frame is fixed on rack for lower part and horizontal thrust axis
On, the pinch roller fixed link keeps the relative position of pinch roller and rack constant jointly with fixed frame, and the power device is solid
Due in rack, can controlled level thrust axis horizontal movement, and then change analog casing radius of curvature, the rack and mould
Quasi- casing horizontal segment contact.
Design principle of the invention：
Most of drilling borehole traces are not straight line, and well track can be also bent, and casing raised and decentralized
Cheng Zhong, casing can be bent with well track and is bent, and then generate additional resistance.Similarly, it in the well section cemented the well, bores
Well casing column can be also bent with the bending of casing, and then generate additional friction, reduce bit pressure.To measure the resistance and verifying
The reliability of correlation theory model, the present apparatus simulate frictional resistance of the tubing string under different curvature radius.Wherein, power device
To eastern horizontal thrust axis transverse shear stress analog casing, since analog casing one end is fixed on pinch roller, analog casing because by
Extrusion stress and change bending section curvature.Longitudinal power device is pressed down against strain gauge with constant rate of speed, while writing down and answering
Force snesor displacement can transmit the force to simulation tubing string since strain gauge is incompressible, while write down suffered stress,
And then displacement-stress curve is obtained, the maximum value on displacement-stress curve can characterize stiction, after stiction
Constant stress can characterize kinetic force of friction.As analog casing radius of curvature reduces, simulation tubing string deformation is increased, and elasticity can make
Its frictional force between analog casing increases, and then the resistance that buckling tubing string lifts from the top and puts down increases.By changing radius of curvature,
It can calculate under different casing radius of curvature, well drilling pipe column is because deform the variation of the resistance generated.
Beneficial effects of the present invention：
It can be seen that by above-mentioned principle design, a kind of buckling tubing string resistance measurement apparatus operation letter provided by the present invention
Just, structural integrity, easy to operate, feasibility is good, can measure under different curvature radius, stress-displacement of the tubing string in casing
Curve, so analyze casing buckling to tubing string by resistance influenced.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of buckling tubing string resistance measurement apparatus of the embodiment of the present invention 1.In figure：1 Longitudinal dress
It sets, 2 strain gauges, 3 simulation tubing strings, 4 analog casings, 5 pinch rollers, 6 fixed frames, 7 power devices, 8 horizontal thrust axis, 9 pinch rollers
Fixed link, 10 racks.
Specific embodiment
Embodiment 1
A kind of buckling tubing string resistance measurement apparatus, structure include longitudinal power device, strain gauge, simulation tubing string,
Analog casing, pinch roller, fixed frame, power device, horizontal thrust axis, pinch roller fixed link, rack, it is characterised in that：Described is vertical
To power device can the vertical movement of proof stress sensor, the described strain gauge lower end connection simulation tubing string can survey
Vertical stress is measured, the simulation tubing string is located in analog casing, and its outer diameter is less than analog casing internal diameter, the simulation set
Pipe top is fixed frame and is fixed on pinch roller, and by hinge constraint, the fixed frame is fixed on rack for lower part and horizontal thrust axis
On, the pinch roller fixed link keeps the relative position of pinch roller and rack constant jointly with fixed frame, and the power device is solid
Due in rack, can controlled level thrust axis horizontal movement, and then change analog casing radius of curvature, the rack and mould
Quasi- casing horizontal segment contact.
Undeclared part involved in the present invention is same as the prior art or is realized using the prior art.
Claims (1)
1. a kind of buckling tubing string resistance measurement apparatus, structure includes longitudinal power device (1), strain gauge (2), simulation pipe
Column (3), analog casing (4), pinch roller (5), fixed frame (6), power device (7), horizontal thrust axis (8), pinch roller fixed link (9),
Rack (10), it is characterised in that：The longitudinal power device (1) can proof stress sensor (2) vertical movement, it is described
Strain gauge (2) lower end connection simulation tubing string (3), can measure vertical stress, and the simulation tubing string (3) is located at simulation set
It manages in (4), and its outer diameter is less than analog casing (4) internal diameter, the analog casing (4) top is fixed frame (6) and is fixed on pressure
It takes turns on (5), by hinge constraint, the fixed frame (6) is fixed on rack (10), described for lower part and horizontal thrust axis (8)
Pinch roller fixed link (9) keeps pinch roller (5) and the relative position of rack (10) constant jointly with fixed frame (6), the power dress
(7) are set to be fixed on rack (10), can controlled level thrust axis (8) horizontal movement, and then change analog casing (4) curvature half
Diameter, the rack (10) are contacted with analog casing (4) horizontal segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602047.4A CN106050219B (en) | 2016-07-28 | 2016-07-28 | A kind of buckling tubing string resistance measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602047.4A CN106050219B (en) | 2016-07-28 | 2016-07-28 | A kind of buckling tubing string resistance measurement apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106050219A CN106050219A (en) | 2016-10-26 |
| CN106050219B true CN106050219B (en) | 2018-11-30 |
Family
ID=57417206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610602047.4A Active CN106050219B (en) | 2016-07-28 | 2016-07-28 | A kind of buckling tubing string resistance measurement apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050219B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351642A (en) * | 2016-09-22 | 2017-01-25 | 刘亢 | Measuring method for resistance of buckling tubular column |
| CN108801900A (en) * | 2018-06-29 | 2018-11-13 | 中国神华能源股份有限公司 | It is bent Mud lubricity detection device and method inside tubing string |
| CN111380711B (en) * | 2020-04-05 | 2021-06-01 | 新疆正通石油天然气股份有限公司 | Buckling tubular column drilling test method in reducing well |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200704U (en) * | 1987-01-20 | 1987-12-26 | 武汉水运工程学院 | Angle direct measuring device for automatic pipe bending |
| CN1967202A (en) * | 2005-11-15 | 2007-05-23 | 中国石油大学(北京) | Petroleum drilling pipe shocking and sliding wear tester |
| CN101153835A (en) * | 2006-09-27 | 2008-04-02 | 中国石油大学(北京) | Sliding desk type casing tube abrasion testing machine |
| CN101581611A (en) * | 2009-06-19 | 2009-11-18 | 中国海洋石油总公司 | Side friction measuring unit of drilling riser under simulated high-pressure condition |
| CN101949801A (en) * | 2010-09-06 | 2011-01-19 | 东华大学 | Fabric bending resistance continuous measuring device and method and use |
| CN105089624A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Horizontal well coiled tubing conveying dynamic logging method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8220563B2 (en) * | 2008-08-20 | 2012-07-17 | Exxonmobil Research And Engineering Company | Ultra-low friction coatings for drill stem assemblies |
-
2016
- 2016-07-28 CN CN201610602047.4A patent/CN106050219B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200704U (en) * | 1987-01-20 | 1987-12-26 | 武汉水运工程学院 | Angle direct measuring device for automatic pipe bending |
| CN1967202A (en) * | 2005-11-15 | 2007-05-23 | 中国石油大学(北京) | Petroleum drilling pipe shocking and sliding wear tester |
| CN101153835A (en) * | 2006-09-27 | 2008-04-02 | 中国石油大学(北京) | Sliding desk type casing tube abrasion testing machine |
| CN101581611A (en) * | 2009-06-19 | 2009-11-18 | 中国海洋石油总公司 | Side friction measuring unit of drilling riser under simulated high-pressure condition |
| CN101949801A (en) * | 2010-09-06 | 2011-01-19 | 东华大学 | Fabric bending resistance continuous measuring device and method and use |
| CN105089624A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Horizontal well coiled tubing conveying dynamic logging method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106050219A (en) | 2016-10-26 |
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| CB03 | Change of inventor or designer information |
Inventor after: Lin Zhongyue Inventor after: Liu Kang Inventor before: Liu Kang Inventor before: Lin Zhongyue |
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| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211210 Address after: No. 299, Dianchang Road, Fengtai District, Beijing 100039 Patentee after: GENERAL PROSPECTING INSTITUTE CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY Address before: 100012 Building 1, xiujuyuan, Beiyuan Jiayuan, Chaoyang District, Beijing Patentee before: Liu Kang |
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| TR01 | Transfer of patent right |