EP3959494A1 - Intelligentes trageelement - Google Patents
Intelligentes trageelementInfo
- Publication number
- EP3959494A1 EP3959494A1 EP20717165.3A EP20717165A EP3959494A1 EP 3959494 A1 EP3959494 A1 EP 3959494A1 EP 20717165 A EP20717165 A EP 20717165A EP 3959494 A1 EP3959494 A1 EP 3959494A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support element
- riser pipe
- intelligent support
- pipe arrangement
- membrane
- 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.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 239000012528 membrane Substances 0.000 claims description 36
- 239000012530 fluid Substances 0.000 claims description 15
- 230000001174 ascending effect Effects 0.000 claims description 4
- 239000000725 suspension Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/02—Measuring force or stress, in general by hydraulic or pneumatic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0025—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of elongated objects, e.g. pipes, masts, towers or railways
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
Definitions
- the invention relates to an intelligent support element for suspension and
- Boreholes for example for oil and gas production, are usually provided with a riser pipe housing at their aboveground end. Cavities between this riser pipe housing and the ground are grouted with cement mortar. A riser pipe arrangement, which forms the actual oil or gas line for production, is let into the riser pipe housing.
- the riser assembly is under
- the riser pipe arrangement is fixed at its lower end in the bottom of the borehole by means of so-called packers.
- the upper end of the riser pipe arrangement, which ends in the riser pipe housing, is then pulled out by approx. 40 to 50 cm and placed under mechanical pretension.
- a typical borehole depth of 3000 m results in an expansion of the riser pipe arrangement of approx. 0.015%.
- the riser pipe arrangement is fixed in the riser pipe housing by means of suitable support elements, for example by means of bolts.
- the invention is therefore based on the object to provide a way to
- an intelligent support element for suspending and monitoring riser pipe arrangements under mechanical prestress, in particular for oil and gas riser pipes, the intelligent support element being designed to be inserted into a riser pipe housing, such that in the inserted state a
- Riser pipe arrangement can be held in the riser pipe housing under mechanical prestress, the riser pipe arrangement can be mounted on a support surface of the intelligent support element, the support surface being a
- Monitoring function for determining changes in the load on the suspended riser pipe arrangement is integrated into a support element which simultaneously serves to suspend the riser pipe arrangement. This results in a number of advantages. On the one hand, there is no need for a separate component
- Monitoring function is provided by the support element itself.
- a structurally simple and inexpensive solution for monitoring is created, which is also extremely maintenance-friendly, since if the pressure-sensitive element provided for load monitoring is damaged, only the intelligent support element has to be replaced without complex measures being carried out on the riser pipe arrangement or the riser pipe housing have to.
- This also makes it possible to retrofit the monitoring function for the riser pipe arrangement easily and inexpensively in existing drilling sites, since only an existing support element has to be replaced by an intelligent support element according to the invention. Damage to the pressure-sensitive element does not affect the mechanical fixing of the riser pipe arrangement, so that with the intelligent Support element according to the present invention, the operational reliability of the riser pipe arrangement can also be improved.
- the bearing force can be determined indirectly, in that the bearing force acting on the bearing surface is first picked up and mechanically transferred to a position remote from the bearing surface for determination, or directly by the bearing force being detected directly on the bearing surface.
- the pressure-sensitive element is formed by a membrane which is designed such that it is deformed in accordance with a change in the instantaneous bearing force of the riser pipe arrangement.
- a membrane which is designed such that it is deformed in accordance with a change in the instantaneous bearing force of the riser pipe arrangement.
- the body of the intelligent support element is preferably made of metal
- the membrane is preferably one
- Metal membrane in particular a membrane made of stainless steel, and preferably has a thickness of 0.5 to 5 mm.
- the membrane spans a large part of the
- Support surface of the intelligent support element preferably 60% to 90% of the total support surface.
- a cavity is arranged below the membrane which can be filled with a hydraulic fluid in such a way that a deformation of the membrane is transferred to the hydraulic fluid.
- the hydraulic fluid is especially incompressible. This makes it possible to establish a force transmission path via which the bearing force can be reliably derived from the membrane and transmitted to a location suitable for detection or display.
- the hydraulic fluid can be optimized in terms of aging resistance, compressibility and viscosity, as well as the ambient temperature. It is further preferred that the intelligent support element has a hydraulic line which is in fluid connection with the cavity and which is connected to it
- Support element has a negligible response time to changes in the
- Load capacity of the intelligent support element is not influenced.
- Pressure change can be connected. This means that the current bearing force and any changes that occur can be read off directly. If the bearing force deviates from a predefined value by more than a predetermined tolerance value, for example due to temperature fluctuations or tectonic movements that affect the riser pipe arrangement underground, such a change can be recognized directly on the display and appropriate precautions can be taken.
- the outer end of the hydraulic line can be connected to a pressure sensor which is designed to detect a change in pressure of the hydraulic fluid in the hydraulic line. This allows a change in the bearing force to be recorded easily.
- the diaphragm is in contact with a piezoelectric element which is designed to detect a change in the bearing force acting on the diaphragm. This makes it possible to monitor the riser pipe arrangement fully electronically.
- the use of a piezoelectric element also enables reliable and precise measurement of the bearing force or a change in the bearing force.
- an electrical line is connected to the piezoelectric element in such a way that a change in the momentary bearing force on the diaphragm by means of the piezoelectric element becomes one Voltage signal is converted, which via the electrical line to a
- Telecommunication notification is transferable.
- the signals detected by means of the pressure sensor or the piezoelectric element can, for example, occur at specific time intervals or when predetermined time intervals are exceeded
- Threshold values or on manual or automatic query to a
- Information system to be sent for storage or display. It is also possible to use the recorded data together with measured data, for example
- Support force and the optionally additionally recordable data are usually only to be expected in the event of an overload of the riser pipe arrangement.
- the data recorded on the intelligent support element can be transmitted to the information system via any interfaces, for example via serial or USB interfaces, or wirelessly via a suitable one
- Embodiments for suspending and monitoring the bearing force of a riser pipe arrangement is used.
- the maximum bearing force can be increased.
- the use of several intelligent support elements offers a redundancy, in that the riser pipe arrangement also then can be reliably monitored if part of the intelligent support elements is temporarily inoperable.
- 1 a is a schematic sectional view of a riser pipe housing with an inserted riser pipe arrangement, before the riser pipe arrangement is mechanically preloaded;
- Fig. Lb is a view of the riser housing from Fig. La after the
- the riser assembly is mechanically biased and suspended
- Fig. 2 is a schematic sectional view of an intelligent support element according to an embodiment of the invention, which is in a
- FIG. 3 shows a schematic sectional view of an intelligent support element according to a further exemplary embodiment of the invention, which is inserted into a riser pipe housing and on which one
- FIG. 4 shows a schematic sectional view of an intelligent support element according to a further exemplary embodiment of the invention, which is inserted into a riser pipe housing and on which one
- Fig. 5 is a horizontal sectional view of a riser housing into which
- FIG. 6 shows a schematic illustration of an alternative solution for providing a monitoring function for a suspended riser pipe arrangement according to an exemplary embodiment from FIG.
- Fig. La shows a schematic view of a riser casing 2 which is arranged at the aboveground end of a borehole.
- the riser pipe housing 2 can be formed, for example, by a riser pipe double flange or a tension spool.
- a riser pipe arrangement 1 is let into the borehole along the direction of gravity g, the upper end of which is in the
- riser housing 2 is located.
- the riser pipe arrangement 1 has at its upper end a riser pipe hanger la, which is connected to a riser pipe lb.
- a riser pipe hanger la which is connected to a riser pipe lb.
- a plurality of further riser pipes lb can be connected to the riser pipe 1b shown in FIG.
- the riser pipe arrangement 1 is anchored at its lower end in a (not shown) drill bottom of the borehole, for example by means of packers.
- a drill bottom of the borehole for example by means of packers.
- the riser pipe arrangement 1 is pretensioned.
- the riser pipe hanger la has a support area lc which can be arranged on a support element around the
- Riser pipe housing 2 has an opening with a receptacle 4 for a support element.
- a receptacle 4 for a support element In Fig. La, an intelligent support element 3 is inserted into the receptacle 4, which is described in detail below.
- Support element 3 is pushed into the receptacle 4 until the support area 1c comes to rest on an upper surface of the front area 3a of the intelligent support element 3 and is countered by the intelligent support element 3
- the intelligent support element 3 can be fixed in the receptacle 4 by suitable means, for example by a threaded engagement (not shown). In addition to the suspension function, the intelligent support element 3 provides the function of determining the bearing force of the riser pipe arrangement 1 on the support element 3 and thus creates the possibility of monitoring the condition of the riser pipe arrangement 1.
- Fig. 2 shows a detailed view of the intelligent support element 3 according to an embodiment of the invention.
- the support element 3 is, as described above, inserted into the riser pipe housing 2 and carries the
- the riser pipe arrangement 1 is supported on a support surface on the upper side of the front area 3 a of the intelligent support element 3.
- the support surface has a membrane M with the
- Support area lc of the riser assembly 1 is in contact.
- the diaphragm M is deflected downward by the bearing force exerted on the bearing surface by the ascending pipe arrangement 1, the deflection increasing as the temperature increases
- the membrane M thus forms a pressure-sensitive element that can be used to determine the instantaneous bearing force.
- a flea space 6 is arranged, which is in fluid connection with a hydraulic line 7.
- the hydraulic line 7 is formed, for example, by a bore in the intelligent support element 3.
- the flea space 6 and the FHyd drainage line 7 are filled with an incompressible FHyd drainage fluid.
- a deflection of the membrane M is transmitted to the side of the intelligent support element 3 facing away from the riser pipe arrangement 1 essentially hysteresis-free by means of the FHyd raulikiquid located in the flea space 6 via the FHyd ra ul iktechnisch 7 and can be tapped there.
- the outer end is the
- FHyd raulik Hartmann 7 connected to a pressure indicator 5a, which can be formed, for example, by a mechanical load indicator with a scale. As soon as the ascending pipe arrangement 1 is suspended as shown in FIG. 1b, the pressure indicator 5a shows the current bearing force on the scale. Changes in
- the bearing force leads to a change in the deflection of the membrane M, which is displayed instantaneously on the pressure indicator 5a, with both an increase and a decrease in the bearing force being readable on the pressure indicator 5a.
- the pressure indicator 5a can also be formed by a pipe manometer or some other device which is suitable for making the pressure change on the membrane M transmitted via the hydraulic line 7 visible.
- Fig. 3 shows a modified embodiment of the intelligent
- the pressure-sensitive element is in turn formed by the membrane M. Changes in force that lead to a change in the deflection of the diaphragm M are in turn transmitted hydraulically through the body of the intelligent support element 3 to the outside of the riser pipe housing 2.
- the hydraulic line is connected to a pressure sensor 5b which detects changes in pressure in the hydraulic line 7.
- the pressure values detected in the pressure sensor 5b can be displayed on a digital display (not shown). Alternatively or additionally, the pressure values from the pressure sensor 5b can be sent to a suitable interface (not shown)
- Pressure values can be displayed, stored, evaluated and used to monitor the riser pipe arrangement 1. For example, the bearing force acting immediately after the rising pipe arrangement 1 is suspended can be detected and a tolerance range can be defined around this value. If a pressure value outside the defined tolerance range is measured,
- an alarm can be activated.
- FIGS. 2 and 3 use a hydraulic force transmission to determine the bearing force. Changes in
- bearing force can also be converted directly into an electrical signal.
- 4 shows the intelligent support element 3 according to a further exemplary embodiment of the invention.
- a membrane M is formed as a pressure-sensitive element on the support surface, below which a piezoelectric element 6a is arranged.
- the deflection of the membrane M causes a deformation of the piezoelectric element 6a arranged directly below it, which is converted into an electrical voltage.
- the voltage can be conducted to the outside of the riser pipe housing 2 via a two-pole electrical line in the intelligent support element 3.
- the piezoelectric element 6a can be grounded via the body of the intelligent support element 3 on the riser pipe housing 2 and the voltage signal generated by the bearing force via a single-pole electrical line can be tapped.
- the (one or two-pole) electrical line is shown in FIG. 4 with the reference symbol 7a.
- the piezoelectric element 6a itself can also form the pressure-sensitive element.
- the piezoelectric element 6a is arranged directly on the support surface.
- Stress sensors can be used to detect changes in the bearing force. Furthermore, alternative mechanical transmissions of the
- Diaphragm deflection are used.
- the deflection of the diaphragm M can be detected via the deformation of a spring element and via a suitable mechanical transmission to one shown in FIG. 2
- Display unit are brought to the display.
- the description of the above exemplary embodiments relates to the use of a single intelligent support element 3 when suspending the riser pipe arrangement 1.
- the suspension is usually carried out by means of several support elements. Accordingly, to increase the
- FIG. 5 shows a sectional view of a
- a plurality of support elements for example two opposite support elements, or all support elements, are preferably formed by an intelligent support element 3 according to the invention, so that the
- Support force can be measured on several or all support surfaces.
- a further set of receptacles 4b for support elements is formed in a horizontal plane below the sectional plane.
- the means for detecting and monitoring the bearing force are integrated into the intelligent support elements 3.
- the means for detection and monitoring are integrated into the intelligent support elements 3.
- Fig. 6 shows a schematic representation of an alternative solution to
- a riser pipe arrangement 1 can again be seen, which is suspended with the support area 1c on the support surface of a support element formed by a bolt 3b.
- the support area 1c has a membrane M on the surface in contact with the support surface of the bolt, which membrane is designed in accordance with the membranes M in the exemplary embodiments according to FIGS. 2 to 4.
- a force transmission element 6b with a line 7b is arranged above the membrane M.
- the power transmission element 6b can by a with
- Hydraulic fluid-filled cavity can be formed in accordance with the exemplary embodiments shown in FIGS. 2 and 3.
- the line 7b is a hydraulic line.
- the force transmission element 6b can be formed by a piezoelectric element corresponding to the exemplary embodiment shown in FIG. 4.
- the line 7b is an electrical line.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019110859.4A DE102019110859A1 (de) | 2019-04-26 | 2019-04-26 | Intelligentes Tragelement |
PCT/EP2020/059577 WO2020216598A1 (de) | 2019-04-26 | 2020-04-03 | Intelligentes trageelement |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3959494A1 true EP3959494A1 (de) | 2022-03-02 |
Family
ID=70189959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20717165.3A Pending EP3959494A1 (de) | 2019-04-26 | 2020-04-03 | Intelligentes trageelement |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3959494A1 (de) |
DE (1) | DE102019110859A1 (de) |
WO (1) | WO2020216598A1 (de) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3277969A (en) * | 1964-02-07 | 1966-10-11 | Pan American Petroleum Corp | Underwater drilling |
US4174628A (en) * | 1978-07-10 | 1979-11-20 | Shell Oil Company | Marine riser measuring joint |
JPH05288650A (ja) * | 1992-04-13 | 1993-11-02 | Furukawa Electric Co Ltd:The | パイプの劣化検知方法 |
-
2019
- 2019-04-26 DE DE102019110859.4A patent/DE102019110859A1/de active Pending
-
2020
- 2020-04-03 WO PCT/EP2020/059577 patent/WO2020216598A1/de unknown
- 2020-04-03 EP EP20717165.3A patent/EP3959494A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE102019110859A1 (de) | 2020-10-29 |
WO2020216598A1 (de) | 2020-10-29 |
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