Device for measuring data in boreholes and method for the production thereof

Abstract

The invention relates to a device for measuring data in boreholes, comprising a sensor, a cable section and a protective sheath, wherein the protective sheath has a seam, as well as a method for producing a device for measuring data in boreholes.

Description

[0001] DEVICE FOR MEASURING DATA IN DRILL HOLES AND METHOD FOR MAKING IT

[0002] The invention relates to a device for measuring data in boreholes with a sensor, a cable section and a protective sheath, wherein the protective sheath has a seam, and to a method for manufacturing a device for measuring data in boreholes.

[0003] To measure and record data, such as temperature, at different depths in boreholes, a multiple sensor array is typically used, arranged along a flexible cable. This sensor array is positioned vertically in the borehole, and the data collected is recorded as a function of depth. The sensor array is enclosed in a protective casing to shield it from water and other environmental factors.

[0004] Such a sensor chain is shown, for example, in the German patent DE 1020 1001 4415 A1 "Device and measuring method for measuring an underground temperature and use of semiconductor sensors". The sensor chain is surrounded by a tube made of a flexible material, e.g., rubber or plastic.

[0005] The document EP 3464812 B1, "Devices and methods for measuring temperature along a borehole using semiconductor elements," discloses a device for use in measuring temperature in a borehole, comprising: a pipe, which is a metallic pipe, containing a plurality of temperature measuring modules provided at positions along the inside of the pipe. Both devices shown here have the disadvantage of being complicated and therefore expensive to manufacture.

[0006] It is therefore an object of the present invention to provide a device for measuring data in boreholes which can be manufactured quickly and therefore cost-effectively.

[0007] It is also an object of the present invention to provide a method for manufacturing a device for measuring data in boreholes, with which such a device can be manufactured simply, quickly and therefore cost-effectively.

[0008] The problem is also solved with the device according to the invention for measuring data in boreholes. Advantageous embodiments of the invention are also set out in the dependent claims.

[0009] The device according to the invention for measuring data in boreholes comprises a sensor, a cable section, and a protective sheath. The sensor is arranged on the cable section. The protective sheath encloses the cable section and the sensor. Furthermore, the protective sheath has a seam. The cable section comprises a cable strand with one or more conductors to which the sensor is connected. The seam is a joining seam along which two edges of the protective sheath are joined to seal it. This can involve several different parts of the protective sheath or a single part whose opposite edges are joined. Significant advantages in the manufacture of the device according to the invention arise from the successive sealing of the protective sheath. The cable sections used are several tens of meters long.For a tightly fitting protective sheath or a filling within the sheath, manufacturing is significantly simplified if the cable section and / or the filling can be inserted piece by piece into the closed section of the protective sheath, and / or if the protective sheath is designed to fit tightly around the cable section and / or the sensor. A protective sheath that fits tightly around the sensors has the advantage of improving heat and / or pressure conduction from the surrounding environment to the sensor. Furthermore, the protective sheath serves as pressure equalization and prevents physical influences on the cable section and / or the sensor attached to it.

[0010] In a further development of the invention, the protective sheath is designed to be tubular and / or flexible. A tubular shape of the protective sheath accommodates the elongated shape of the cable run and / or the borehole. The flexible design of the protective sheath ensures simplified handling, since the device, and in particular the cable run arranged within the protective sheath, can be rolled up for transport and only needs to be unrolled to the extent required by the depth of the borehole and / or the measurement project for insertion into a borehole.

[0011] In a further embodiment of the invention, the protective sheath is closed at one end. This has the advantage of preventing the ingress of water or dirt. Depending on the material of the protective sheath, the closure can be achieved by gluing, welding, or other means.

[0012] In an optional embodiment of the invention, the protective sheath has an opening at one end for the cable. The cable arranged in the protective sheath can thus be led out of the protective sheath in order to be connected, for example, to a controller and / or evaluation unit.

[0013] In a further embodiment of the invention, the cable section with the sensor is embedded in a filling within the protective sheath. This has the advantage that the cable section and / or the sensor are additionally protected against physical influences by the filling.

[0014] In an optional embodiment of the invention, the filling is thermally conductive. A thermally conductive filling can improve the functionality of the device according to the invention, since, for example, a sensor embedded in air can only detect the ambient temperature outside the casing with difficulty. In an optional further development of the invention, the filling is sand or ceramic. Both types of filling offer protection against mechanical stresses and also exhibit good thermal conductivity (temperature transfer). In an optional embodiment, the filling is loose and / or granular. In a further optional embodiment, the filling is pourable.

[0015] In a further embodiment of the invention, the cable section has several sensors. The sensors are arranged at intervals along the cable section. This has the advantage that several parameters, such as pressure and temperature, can be measured with the device according to the invention without having to change the device for measuring data in boreholes. In addition, it is possible to carry out measurements simultaneously at different depths of the borehole.

[0016] In a further embodiment of the invention, the cable length measures at least 3 m, preferably at least 10 m, particularly preferably at least 20 m, and especially preferably at least 25 m or longer, optionally more than 100 m. The advantage of the invention is particularly effective with long cable lengths. The successive sealing of the protective sheath offers significant advantages in the manufacture of the device according to the invention, especially with long cable lengths. If the protective sheath were not joined along the seams, the cable length and, if applicable, the filling would have to be inserted into the protective sheath along its entire length. The longer the cable length, the more difficult this becomes.For a tightly fitting protective sheath or a filling within the protective sheath, manufacturing is significantly simplified if the cable section and / or the filling can be inserted piece by piece into the closed section of the protective sheath, and / or if the protective sheath is to fit tightly around the cable section and / or the sensor. In a further embodiment of the invention, the seam is formed by a weld. Welding is a well-known and easily controlled technology for joining different materials. Suitable materials include, for example, natural rubber, synthetic rubbers (e.g., EPDM, NBR, SBR), plastics (e.g., PVC, PUR - polyurethane, PA - polyamide, PE - polyethylene, silicones, Teflon), or even metals (e.g., stainless steel).

[0017] In another embodiment according to the invention, the seam is an adhesive seam. Adhesive bonding is a well-known and easily controlled technology for joining different materials. Suitable adhesive materials include all commercially available adhesives, such as organic compounds, elastomers, thermoplastics, emulsions, and thermosets. Examples of thermoset adhesives are: epoxy, polyurethane, cyanoacrylate, and acrylic polymers.

[0018] In an optional embodiment of the invention, the protective sheath has several seams. Depending on the manufacturing process, it may be necessary to join several parts of the protective sheath together. For example, it is advantageous to join several short hose sections of the protective sheath to form one long protective sheath.

[0019] In an advantageous embodiment of the invention, the seam extends along the longitudinal direction of the protective sheath. This has the advantage that the protective sheath can be manufactured in one piece by joining the opposite edges of a rectangular protective sheath section. The joining of the edges can be carried out successively so that the protective sheath can be filled section by section with the cable and / or the filling material.

[0020] In a further embodiment of the invention, the seams run parallel. This allows the protective sheath to be assembled from small hose sections during manufacturing by welding or gluing the end edges of the hose sections. In an optional embodiment of the invention, the hose sections are at least 50 cm long.

[0021] In a further development according to the invention, the protective sheath has, in addition to the closed end, a second end to which a bracket is attached. The bracket and / or its attachment to the protective sheath is designed and suitable for supporting the weight of the device for measuring data in boreholes. It is provided that the device for measuring data in boreholes is attached at one end outside or above the borehole, and that the loose end of the device is allowed to hang in the borehole or in a pipe arranged in the borehole.

[0022] In a further development according to the invention, the holder has a connecting element that is attached to the protective sheath. This connecting element is suitable for attaching the device according to the invention, which is connected to the holder, outside or above the borehole.

[0023] In a further optional embodiment of the invention, the holder has an engagement element that is designed and suitable for engaging with a well pipe. In one optional embodiment, the engagement element is a hook that can be hooked onto the edge of a well pipe.

[0024] In a further embodiment of the invention, the engagement element is designed and suitable for covering a well pipe and / or can be connected to a cover that is designed and suitable for covering a well pipe. This has the advantage that no foreign bodies can enter the well pipe, which in turn could damage the device according to the invention.

[0025] In an optional embodiment of the invention, a cover is arranged at the second end of the protective sheath, which is designed and suitable for closing the protective sheath. This also protects the protective sheath from the unintentional ingress of foreign objects directly into the cable run. In an optional embodiment, the cover has a feedthrough designed and suitable for allowing the cable run to pass through. This ensures proper cable routing without pinching and damaging the cable between the protective sheath and the cover. In a further optional embodiment of the invention, the cover is designed and suitable for covering a pipe inserted into the well. This cover thus seals the well pipe along with the protective sheath. Furthermore, this cover can optionally also serve as a holder for the device.

[0026] The problem is also solved by the inventive method for manufacturing devices for measuring data in boreholes. Advantageous embodiments of the invention are also set out in the dependent claims.

[0027] The inventive method for manufacturing a device for measuring data in boreholes comprises the process steps of providing a first protective sheath part, wherein the first protective sheath part has a first edge, arranging a cable section in the first protective sheath part, and connecting the first edge to a second edge of the first protective sheath part or to a second edge of a second protective sheath part to form a protective sheath. Connecting protective sheath parts offers the advantage in manufacturing that the handling of the protective sheath is considerably simplified.

[0028] A seam is formed at the joining line during manufacturing. This seam is a joining seam along which two edges of the protective sheath are joined to close it. This can involve several different parts of the protective sheath or a single part whose opposite edges are joined. The successive closing of the protective sheath offers significant advantages in the manufacture of the device according to the invention. The cable sections used are several tens of meters long. With a tightly fitting protective sheath or a filling within the protective sheath, manufacturing is considerably simplified if the cable section and / or the filling can be inserted piece by piece into the closed section of the protective sheath and / or if the protective sheath is to fit tightly around the cable section and / or the sensor.A protective sheath that fits tightly around the sensors has the advantage of improving heat and / or pressure conduction from the surrounding environment to the sensor. In one optional embodiment, the filling is loose and / or granular. In another optional embodiment, the filling is pourable.

[0029] In a further embodiment of the invention, the protective sheath is closed at one end. This has the advantage of preventing the ingress of water or dirt. Depending on the material of the protective sheath, the closure can be achieved by gluing, welding, or other means. Furthermore, this has the advantage of providing a stop for the cable and preventing it from slipping out of the protective sheath. Additionally, this allows a filler material to be introduced into the protective sheath.

[0030] In a further optional embodiment of the invention, a filler is inserted into the protective sheath. This has the advantage that the cable and / or the sensor are additionally protected by the filler. The functionality of the device according to the invention can be improved by optionally using a thermally conductive filler, since, for example, a sensor embedded in air can only detect the ambient temperature outside the sheath, or even inside the sheath with or without filler material, with difficulty and without additional influencing factors. In an optional further development of the invention, the filler is sand or ceramic. Both types of filler offer protection against mechanical stresses and also exhibit good thermal conductivity.

[0031] In a further embodiment of the invention, the process steps of joining the edges of protective jacket components and / or filling the protective jacket with filler are carried out multiple times. Optionally, the process steps of joining the edges of protective jacket components and filling the protective jacket with filler are carried out alternately. This allows the protective jacket to be manufactured and / or filled section by section, which simplifies handling during production and thus significantly reduces manufacturing costs.

[0032] In a further embodiment of the invention, the first and second protective sheath parts are tubular in shape. This tubular form of the protective sheath accommodates the elongated shape of the cable run and / or the borehole. The flexible design of the protective sheath ensures simplified handling, as the device, and in particular the cable run arranged within the protective sheath, can be rolled up for transport and only needs to be unrolled to the extent required by the borehole depth and / or the measurement task for insertion into a borehole.

[0033] In an optional embodiment of the invention, the second protective sheath section is also tubular. This has the advantage that short protective sheath sections can be connected together to form a longer protective sheath. Optionally, the second protective sheath section is threaded onto the cable run before being connected to the first. In an alternative embodiment of the invention, several tubular protective sheath sections are first threaded onto the cable run and then connected together, with the optional filling with a filler material then taking place successively between the connection of the individual protective sheath sections. Here, the additional tubular protective sheath sections are joined together to form the protective sheath by threading them onto the cable run, connecting them to the last protective sheath section in place at that time, and filling the protective sheath with the filler material.

[0034] In a further embodiment of the invention, the first and second edges are joined by welding and / or bonding. Welding is a well-known and easily controlled technology for joining different materials. Suitable materials include, for example, natural rubber, synthetic rubbers (e.g., EPDM, NBR, SBR), plastics (e.g., PVC, PUR - polyurethane, PA - polyamide, PE - polyethylene, silicones, Teflon), or even metals (e.g., stainless steel). Bonding is also a well-known and easily controlled technology for joining different materials. Suitable adhesives include all commercially available adhesives such as organic compounds, elastomers, thermoplastics, emulsions, and thermosets. Examples of thermoset adhesives are epoxy, polyurethane, cyanoacrylate, and acrylic polymers.

[0035] In a further optional embodiment of the invention, a bracket is attached to the protective casing at the second end opposite the sealed end of the protective casing. The bracket and / or its attachment to the protective casing is designed and suitable for supporting the weight of the device for measuring data in boreholes. It is intended that the device for measuring data in boreholes is attached at one end outside or above the borehole, and that the loose end of the device is allowed to hang into the borehole or a pipe arranged in the borehole.

[0036] In a further embodiment of the invention, a cover is arranged at the second end of the protective sheath, which is designed and suitable for closing the protective sheath. This also protects the protective sheath from the unintentional ingress of foreign objects directly into the cable run. In an optional embodiment, the cover has a feedthrough designed and suitable for allowing the cable run to pass through. This ensures proper cable routing without pinching and damaging the cable between the protective sheath and the cover. In a further optional embodiment of the invention, the cover is designed and suitable for covering a pipe inserted into the well. This cover thus seals the well pipe together with the protective sheath. Furthermore, this cover can optionally also serve as a holder for the device.In an optional embodiment of the invention, the length of the device for measuring data in a borehole is adapted to the intended application location. This allows the protective sheath to be fully inserted into the borehole and / or a pipe inserted into the borehole, where it can remain for continuous operation. Currently, this is not possible with existing measurement methods, as the cable runs are designed for maximum lengths to allow for use in as many boreholes as possible. Customizing the device for specific application locations makes it possible to perform continuous measurements and thus measure dynamic changes in environmental parameters within the boreholes.

[0037] Exemplary embodiments of the device according to the invention for recording data in a borehole and of the method for its manufacture are shown schematically simplified in the drawings and are explained in more detail in the following description.

[0038] They show:

[0039] Fig. 1: Sectional drawing of a device according to the invention for recording data in boreholes arranged in a groundwater monitoring well

[0040] Fig. 2a: Sectional drawing of a device according to the invention for recording data in boreholes

[0041] Fig. 2b: Sectional drawing of a device according to the invention for recording data in boreholes, seam in longitudinal direction

[0042] Fig. 2c: Sectional drawing of a device according to the invention for recording data in boreholes, seam in transverse direction

[0043] Fig. 3a: Sectional drawing of a device according to the invention for recording data in boreholes, attached with hooks

[0044] Fig. 3b: Sectional drawing of a device according to the invention for acquiring data in boreholes. Fig. 3c: Sectional drawing of a device according to the invention for acquiring data in boreholes.

[0045] Fig. 4 a: Method for producing a seam in the longitudinal direction r of the device according to the invention for recording data in boreholes,

[0046] Fig. 4b: Method for manufacturing a device according to the invention for recording data in boreholes, seam in longitudinal direction

[0047] Fig. 4c: Method for manufacturing a device according to the invention for recording data in boreholes, seam in longitudinal direction

[0048] Fig. 4d: Method for manufacturing a device according to the invention for recording data in boreholes, seam in longitudinal direction

[0049] Fig. 5a: Method for manufacturing a device according to the invention for recording data in boreholes, seam in transverse direction

[0050] Fig. 5b: Method for manufacturing a device according to the invention for recording data in boreholes, seam in transverse direction

[0051] Fig. 5c: Method for manufacturing a device according to the invention for recording data in boreholes, seam in transverse direction

[0052] Fig. 5 d: Method for manufacturing a device according to the invention for recording data in boreholes, seam in transverse direction

[0053] Fig. 5e: Method for manufacturing a device according to the invention for recording data in boreholes, seam in transverse direction

[0054] Fig. 5 f: Method for manufacturing a device according to the invention for recording data in boreholes, seam in transverse direction

[0055] Fig. 1 shows a sectional drawing of an embodiment of a device 1 according to the invention for acquiring data in boreholes 200. In this and the further embodiments, the device 1 according to the invention is arranged vertically in a groundwater monitoring well. The borehole 200 is a groundwater monitoring well and has a well casing 230 running parallel to the borehole 200. The borehole 200 has a circular cross-section and is surrounded by a concrete base 110 as a foundation. The borehole 200 has a protective casing 100 in the above-ground area, which is covered by a cap 120. The device 1 has a cable section 20 to which sensors 10 are connected at regular intervals. In an alternative embodiment, the sensors can also be distributed unevenly along the cable section. According to the invention, the minimum distance between the sensors 10 is 20 cm.The cable section 20 is a data bus, in particular a digital 2- or 3-wire data bus, through which the individual sensors 10 are interconnected. The cable section 20 has a total length of at least 10 m, preferably 15 m, particularly preferably 20 m, and especially preferably at least 25 m, in order to also acquire data from deep boreholes 200, e.g., wells. In this embodiment, the length of the cable section is 2030 m.

[0056] In this and all other embodiments, the sensors 10 are humidity and temperature sensors; that is, the sensors 10 detect the humidity and temperature of their immediate surroundings. However, the sensors 10 can also detect other data, such as pressure or chemical composition.

[0057] The cover 210 covers the well pipe 230 and has a feedthrough 34 for the cable section 20. The upper end of the cable section 20 is connected to the controller unit 160. The data acquired by the sensors 10 can be stored in the controller unit 160 and optionally sent to a server unit. Data transmission is preferably wireless. In an alternative embodiment, however, the data can also be transmitted via cable.

[0058] Fig. 2 shows a sectional drawing of an embodiment of a device 1 according to the invention with a protective sheath 30. The cable section 20 and sensors 10 are arranged centrally in a hollow body formed by a protective sheath 30.

[0059] The protective sheath 30 can be, for example, a hose or a tube made of metal and / or plastic. In this and all other embodiments, the protective sheath 30 is a flexible hose made of a polymer. The cavity between the cable section 20, sensors 10, and the protective sheath 30 is filled with a material 50. The material 50 is porous and has thermally conductive properties and is sand; glass spheres, ceramic spheres, etc., are also possible.

[0060] The protective sheath 30 has two ends 31, 32: The first end 31 is closed, the second end 32 has an opening 34 for the cable section 20 (Fig. 2a). The protective sheath 30 itself has a seam 33 that runs along the entire length of the protective sheath 30 (Fig. 2b). The protective sheath 30 can also have a plurality of parallel, transversely arranged seams 33 (Fig.

[0061] 2 c), depending on the manufacturing of the protective sheath 30 (see Fig. 4, Fig. 5).

[0062] Fig. 3 shows exemplary embodiments of the device 1 according to the invention arranged in a borehole 200. The protective sheath 30 is arranged vertically and in different ways in the borehole 200.

[0063] The protective sheath 30 has a connecting element 140 at its second end 32, which is connected to the hook-shaped bracket 130 (Fig. 3a). The protective sheath 30, with the cable section 20 and the sensors 10, is attached to the well pipe 230 by gravity (tensile load). This type of suspension is particularly suitable for temporary data acquisition.

[0064] For long-term or permanent mounting of the device 1 in a borehole 200, designed as a groundwater monitoring well, the protective casing 30 is attached to a welded sleeve 220, which has an external thread (Fig. 3b). The external thread is screwed into a corresponding internal thread of the cover 210. The cover 210 rests on and seals the well casing 230, and the welded sleeve 220 is located inside the well casing 230. The cover 210 has an opening for the cable section 20. The cable section 20 is connected to the controller unit 160. Alternatively, the welded sleeve 220 is located outside the well casing 230 (Fig. 3c). The welded sleeve 220 is also connected to the protective casing 30. The external thread of the welded sleeve 220 is screwed into the corresponding internal thread of the cover 210. The cover 210 also has an opening for the cable section 20, the cable section 20 is connected to the controller unit 160.

[0065] Fig. 4 shows an embodiment of the method for manufacturing a device 1 according to the invention. In the first process step (Fig. 4a), a substantially rectangular polymer film, which in its closed state forms the tubular protective sheath 30, is laid flat, and the cable section 20 with the sensors 10 is placed centrally within it such that the cable section 20 runs along the longitudinal direction of the polymer film. In the second process step (Fig. 4b), the polymer film is folded over so that its longitudinal sides touch at the first end 31. The first end 31 is closed, and the filling 50 is poured into the resulting cavity. The touching longitudinal sides are welded together section by section, or alternatively glued together, so that a seam 33 is formed that runs along the tubular protective sheath 30.

[0066] The process of filling the material 50 and welding the longitudinal sides is repeated (Fig. 4c) until the desired length of the device 1 is reached (Fig. 4d). The cable section 20 with the sensors 10 is held almost centrally in the protective sheath 30 by the material 50; the seam 33 runs along the entire length of the protective sheath 30.

[0067] Fig. 5 shows a further embodiment of the method for manufacturing a device 1 according to the invention. In this embodiment, tubular protective sheath parts 40 are connected to one another. The first protective sheath part 40.1 is closed at its first end 31, and the cable section 20 with the sensors 10 is placed centrally in the first protective sheath part 40.1 (Fig. 5a). The first protective sheath part 40.1 is filled with the filling 50 such that the filling 50 fills approximately half of the volume of the first protective sheath part 40.1 and the filling 50 holds the cable section 20 centrally in the first protective sheath part 40.1.

[0068] The first edge at the open end of the first protective sheath section 40.1 is then brought into contact with a second edge of the second protective sheath section 40.2 such that the hollow bodies of the first 40.1 and second protective sheath section 40.2 are aligned with each other (Fig. 5b). The cable section 20 is first guided through the second protective sheath section 40.2. The first 40.1 and second protective sheath section 40.2 are identical in design, but both ends of the second protective sheath section 40.2 are open.

[0069] The first 40.1 and second 40.2 protective sheath sections are welded together, creating the seam 33, which runs transversely to the longitudinal direction of the protective sheath sections 40.1, 40.2. The filling 50 is then poured into both protective sheath sections 40.1, 40.2 such that it fills approximately half the volume of each section and holds the cable section 20 centrally within both protective sheath sections 40.1, 40.2.

[0070] To connect a third protective sheath section 40.3 to the already connected protective sheath sections 40.1, 40.2 (Fig. 5 d), the first edge at the open end of the second protective sheath section 40.2 is brought into contact with a second edge of the third protective sheath section 40.3 in such a way that the hollow bodies of the second 40.2 and third protective sheath sections 40.3 are aligned with each other. The cable section 20 is first guided through the third protective sheath section 40.3. The second 40.2 and third protective sheath sections 40.3 are also welded together; the weld 33 between the second 40.2 and third protective sheath sections 40.3 runs parallel to the weld 33 between the first 40.1 and second protective sheath sections 40.2. The first 40.1, second protective sheath part 40.2 and third protective sheath part 40.3 are identical to each other, but both ends of the second 40.2 and third protective sheath part 40.3 are not closed.

[0071] The resulting protective shell 30, comprising three protective shell parts 40.1, 40.2, 40.3, is completely filled with the filling 50 (Fig. 5e). The seams 33 run parallel to each other and transversely to the longitudinal direction of the protective shell 30 (Fig. 5f). The seams 33 are spaced at least 0.5 m apart, preferably 1 m, particularly preferably 1.5 m, and especially preferably at least 2 m apart, depending on the length of the protective shell parts 40.1, 40.2, 40.3.

[0072] To connect additional protective sheath sections 40 to an existing protective sheath 30, the process steps of joining the edges of protective sheath sections 40 and / or filling the protective sheath 30 with filler are repeated several times. The process steps of joining the edges of protective sheath sections 40 and filling the protective sheath 30 with filler are repeated as described, alternating between the two steps, and also multiple times, depending on the desired length of the protective sheath 30.

[0073] Device for measuring data in boreholes Sensor

[0074] cable route

[0075] Protective cover / protective shell

[0076] First End / Closed End

[0077] Second ending

[0078] Seam / weld / adhesive seam Opening for cable run

[0079] , 40.1, 40.2, 40.3 Protective sheath part

[0080] filling

[0081] 0 protective tube

[0082] 0 concrete bases

[0083] 0 Cap

[0084] 0 bracket

[0085] 0 connecting element

[0086] 0 Intervention element

[0087] 0 Controller unit

[0088] 0 borehole

[0089] 0 Cover borehole

[0090] 0 welding sleeve

[0091] 0 Well pipe (of the borehole)

Claims

PATENT CLAIMS 1. Device (1) for measuring data in boreholes (200) with • a sensor (10), • a cable route (20), wherein the sensor (10) is arranged on the cable section (20), • a protective sheath (30), wherein the cable section (20) with the sensor (10) is arranged inside the protective sheath (30), characterized by the fact that the protective coat (30) has a seam (33).

2. Device (1) for measuring data in boreholes (200) according to claim 1, characterized by the fact that the protective sheath (30) is tubular and / or flexible.

3. Device (1) for measuring data in boreholes (200) according to claim 1 or 2, characterized by the fact that the protective mantle (30) is closed at one end (31).

4. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized by the fact that The protective sheath (30) has an opening (34) at one end (32) for the cable section (20).

5. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized in that the cable section 1) with the sensor (10) is embedded in a filling (50) in the protective sheath.

6. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized by the fact that the filling (50) is thermally conductive.

7. Device (1) for measuring data in boreholes (200) according to claim 6, characterized by the fact that the filling (50) is sand or ceramic the filling is loose and / or granular.

8. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized by the fact that the cable route (20) has several sensors (10), wherein the sensors (10) are arranged at intervals from each other along the cable route (20).

9. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized by the fact that the cable length (20) is at least 10m.

10. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized by the fact that the seam (33) or one of the seams (33) is a weld.

11. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized by the fact that the protective cover (30) has several seams (33).

12. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized by the fact that the seam (33) or one of the seams (33) is an adhesive seam.

13. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized by the fact that the seam (33) extends along the longitudinal direction of the protective sheath (30).

14. Device (1) for measuring data in boreholes (200) according to claim 13, characterized by the fact that the seams (33) run parallel.

15. Device (1) for measuring data in boreholes (200) according to claim 14, characterized by the fact that the parallel seams (33) have a minimum distance of 50 cm.

16. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized by the fact that the protective sheath (30) has a second end (32) in addition to the closed end (31), wherein a holder (130) is attached to the second end (32) of the protective sheath (30), wherein the holder (130) and / or its attachment to the protective sheath (30) is designed and suitable for supporting the device (1) for measuring data in boreholes (200).

17. Device (1) for measuring data in boreholes (200) according to claim 16, characterized by the fact that the bracket (130) has a connecting element (140), wherein the connecting element (140) is attached to the protective sheath (200).

18. Device (1) for measuring data in boreholes (200) according to claim 16 or 17, characterized by the fact that the holder (130) has an engagement element (150), which is designed and suitable for being brought into contact with a well pipe (230).

19. Device (1) for measuring data in boreholes (200) according to claim 18, characterized by the fact that the intervention element (150) is designed and suitable for covering a well pipe (230), and / or can be connected to a cover (210) which is designed and suitable for covering a well pipe (230).

20. Device (1) for measuring data in boreholes (200) according to one or more of the preceding claims, characterized by the fact that at the second end (32) of the protective mantle (30) a cover (210) is arranged which is designed and suitable for closing the protective mantle (30), wherein the cover (210) has a feedthrough which is designed and suitable for passing the cable route (20) through, 22where the cover (210) is designed and suitable to cover a well pipe (230) inserted into the borehole (200).

21. Method for manufacturing a device (1) for measuring data in boreholes (200) comprising the process steps • Provision of an initial protective sheath component (40.1), wherein the first protective sheath part (40.1) has a first edge, • Arranging a cable section (20) in the first protective sheath part (40.1), • Connecting the first edge to a second edge of the first protective sheath part (40.1) or to a second edge of a second protective sheath part (40.2) to form a protective sheath (30).

22. Method for manufacturing a device (1) for measuring data in boreholes (200) according to claim 21, characterized by the fact that the protective mantle (30) is closed at one end (31).

23. Method for manufacturing a device (1) for measuring data in boreholes (200) according to claim 21 or 22, characterized by the fact that a filling (50) is filled into the protective shell (30), the filling is loose and / or granular.

24. Method for manufacturing a device (1) for measuring data in boreholes (200) according to one or more of claims 21 to 23, characterized in that The process steps of joining edges of protective jacket parts (40) and / or filling the filling (50) into the protective jacket (30) are carried out several times. 2325. Method for manufacturing a device (1) for measuring data in boreholes (200) according to claim 24, characterized by the fact that The process steps of joining edges of protective jacket parts (40) and filling the protective jacket (30) with the filling (50) are carried out alternately.

26. Method for manufacturing a device (1) for measuring data in boreholes (200) according to one or more of claims 21 to 25, characterized in that the second protective sheath part (40.2) is tubular in shape.

27. Method for manufacturing a device (1) for measuring data in boreholes (200) according to claim 26, characterized by the fact that the second protective sheath part (40.2) is also tubular in shape and is threaded onto the cable section (20) before being connected to the first protective sheath part (40.1).

28. Method for manufacturing a device (1) for measuring data in boreholes (200) according to claim 26 or 27, characterized by the fact that Further tubular protective sheath parts (40) are joined together to form the protective sheath (30) by threading them onto the cable section (20), connecting them to the last protective sheath part (40) at that time and filling the protective sheath (30) with the filling (50).

29. Method for manufacturing a device (1) for measuring data in boreholes (200) according to one or more of claims 21 to 28, characterized in that 24The joining of the first and second edges is carried out by welding and / or gluing.

30. Method for manufacturing a device (1) for measuring data in boreholes (200) according to one or more of claims 21 to 29, characterized in that the protective sheath (30) has a second end (32) in addition to the closed end (31), wherein a holder is attached to the second end (32) of the protective sheath (30), wherein the holder and / or its attachment to the protective sheath (30) is designed and suitable for supporting the device (1) for measuring data in boreholes (200).

31. Method for manufacturing a device (1) for measuring data in boreholes (200) according to one or more of claims 21 to 30, characterized in that at the second end (32) of the protective mantle (30) a cover is arranged which is designed and suitable for closing the protective mantle (30).

32. Method for manufacturing a device (1) for measuring data in boreholes (200) according to claim 31 , characterized by the fact that the cover has a feedthrough through which the cable run (20) is passed.

33. Method for manufacturing a device (1) for measuring data in boreholes (200) according to one or more of claims 21 to 32, characterized in that 25The length of the device (1) for measuring data in a borehole (200) is adapted to the application location intended for use.

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