Measuring device and wire-line coring measuring drilling tool applying same

Abstract

The invention discloses a measuring device and a wire-line coring measuring drilling tool applying the same. A drill rod in the measuring device comprises a measuring channel, a measuring window, a blocking switch structure and a first sensor module. The measuring rod is provided with a measuring section, the measuring section is provided with a second sensor module and a processing circuit, the blocking switch structure is used for blocking the measuring section from passing through the measuring channel in the axial direction, and the blocking switch structure opens the measuring window when blocking the measuring section; the first sensor module is arranged in the measuring window, and the first sensor module is used for collecting data in the well after the measuring window is opened; the second sensor module collects data in the rod; the processing circuitry receives and stores the in-rod data in a wired manner, and the processing circuitry receives and stores the in-well data in a wired and / or wireless manner when the measurement segment is blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling equipment, in particular to a measuring device and a rope coring measuring drill tool using the same. Background Art

[0002] In existing drilling measurement techniques, sensors are placed on the outside of the drill pipe. These sensors follow the drill pipe as it drills and collect data. However, as sensitive components, sensors are easily damaged during drilling. Existing solutions include rigid, transparent protective covers over the sensors. While these covers prevent contact between the sensors and the wellbore wall during drilling, they also restrict the use of some sensors, such as temperature and pressure sensors.

[0003] Therefore, in different geological exploration scenarios, how to protect sensitive devices such as sensors and how to use sensors to measure environmental data between the drill pipe and the well wall at the measurement location will be a technical problem that technicians in this field urgently need to solve. Summary of the Invention

[0004] The purpose of the present invention is to provide a measuring device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above objectives, the present invention discloses a first aspect of a measuring device.

[0006] The measuring device includes a drill rod and a measuring rod;

[0007] The drill rod includes a measuring channel, a measuring window, a blocking switch structure and a first sensor module;

[0008] The measuring rod is constructed with a measuring section, and the measuring section is provided with at least one second sensor module and a processing circuit.

[0009] The blocking switch structure is used to block the measuring section from passing through the measuring channel in the axial direction, and the blocking switch structure opens the measuring window when blocking the measuring section;

[0010] The first sensor module is disposed in the measurement window, and is used to collect in-well data between the drill pipe and the well wall after the measurement window is opened;

[0011] The second sensor module collects data inside the rod between the drill rod and the measuring rod;

[0012] The processing circuit receives and stores the in-rod data in a wired manner, and the processing circuit receives and stores the in-hole data in a wired and / or wireless manner when the measurement section is blocked.

[0013] In the present invention, the drill rod is configured with at least one measuring groove along the circumferential direction;

[0014] The blocking switch structure includes a blocking portion, a switch portion and a window switch;

[0015] The first sensor module is installed inside the measuring slot, and the window switch is installed at the notch of the measuring slot;

[0016] The blocking portion is used to block the measuring section from passing through the measuring channel in the axial direction;

[0017] The switch portion is used to open or close the window switch according to the blocking of the measuring outer rod by the blocking portion.

[0018] In the present invention, the blocking portion includes an upper blocking ring, a lower fixing ring and an annular elastic member which are sequentially arranged in the measuring channel along the axial direction;

[0019] The upper blocking ring is movably connected in the measuring channel along the axial direction;

[0020] The lower fixing ring is fixedly connected in the measuring channel;

[0021] The annular elastic member is fixedly connected between the upper blocking ring and the lower fixing ring;

[0022] The switch portion is used to open or close the measurement window according to the up and down displacement of the blocking ring.

[0023] In the present invention, the switch portion includes a connecting rod;

[0024] The connecting rod drives the window switch to open or close according to the up and down displacement of the upper blocking ring.

[0025] In the present invention, the window switch is constructed as a rotary opening and closing mechanism;

[0026] The driving end of the rotary opening and closing mechanism is rotatably connected to the connecting rod;

[0027] The other end of the connecting rod relative to the rotary opening and closing mechanism is rotatably connected to the upper blocking ring.

[0028] In the present invention, the bottom of the measuring tank is constructed with a sensor mounting seat and a signal transmission link;

[0029] The sensor mounting seat is used to mount the first sensor module, and the first sensor module is electrically connected to the signal transmission link;

[0030] The signal transmission link is electrically connected to a first magnetic connection switch after passing through the measurement slot, and the first magnetic connection switch is arranged in the measurement channel;

[0031] The measuring section is provided with a second magnetic connection switch, and the second magnetic connection switch is electrically connected to the processing circuit;

[0032] When the first magnetic connection switch and the second magnetic connection switch are close to each other, they are automatically attracted to form a wired communication link.

[0033] In the present invention, a first wireless transmission module is constructed at the bottom of the measuring tank, and the first wireless transmission module is electrically connected to the first sensor module;

[0034] The measuring section is provided with a second wireless transmission module, and the second wireless transmission module is electrically connected to the processing circuit;

[0035] The first wireless transmission module and the second wireless transmission module form at least a short-range wireless communication link.

[0036] In the present invention, the first sensor module includes a pressure sensor and a temperature sensor.

[0037] In the present invention, the measuring rod is provided with a transmission signal cable along the axial direction;

[0038] The processing circuit is communicatively connected to an external device via the transmission signal cable.

[0039] Furthermore, the second aspect of the present invention discloses a wireline coring and measuring drill tool, which uses the drill rod and the measuring rod of the measuring device.

[0040] Compared with the existing technology, the measuring device of the present invention can be loaded on drilling tools in different geological exploration scenarios. On the one hand, some sensors are arranged inside the drill rod and protected, avoiding damage to sensing devices and the like when drilling with the drill rod, thereby realizing the measurement of data outside the drill rod; on the other hand, some sensors are arranged on the measuring rod to realize the measurement of data inside the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0042] Figure 1 is a schematic diagram of the structure of the measuring device;

[0043] Figure 2 It is a cross-sectional schematic diagram of a drill pipe section;

[0044] Figure 3 It is a structural schematic diagram of the rotating opening and closing structure;

[0045] Figure 4 It is a cross-sectional schematic diagram of the measuring device;

[0046] Figure 5 Schematic diagram of the structure of the first magnetic connection switch and the second magnetic connection switch.

[0047] Description of reference numerals:

[0048] 100, drill rod; 110, first sensor module; 111, measuring window; 200, measuring rod; 210, rod blocking ring; 220, second sensor module; 300, blocking switch structure; 310, upper blocking ring; 320, lower fixing ring; 330, annular elastic member; 400, rotating opening and closing mechanism; 410, driving end; 500, connecting rod; 610, first magnetic connection switch; 620, second magnetic connection switch; 630, signal transmission link; 700, plug. DETAILED DESCRIPTION

[0049] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The drawings illustrate embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of disclosing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0051] As used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include", "comprising", "having", etc. specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0052] The present invention discloses a measuring device. The measuring device includes a drill rod 100 and a measuring rod 200. The drill rod 100 consists of an outer rod and a drill bit. The measuring rod 200 serves as an inner rod for following the drill rod 100 during coring. In the present invention, the measuring rod 200 extends into the drill rod 100. When the drill rod 100 is in a measuring section, one or more measuring windows 111 are opened. The drill rod 100 has a first sensor module 110 disposed within the measuring window 111. The first sensor module 110 is used to collect in-well data between the drill rod 100 and the wellbore wall after the measuring window 111 is opened. The measuring rod 200 is also disposed with a second sensor module 220, which is specifically used to collect in-well data within the drill rod 100.

[0053] In this regard, Figure 1 The drill rod 100 in the measuring device is shown to have a measuring channel axially opened for the measuring rod 200 to extend into. The drill rod 100 has a blocking switch structure 300 in the measuring channel, which can block a measuring section of the measuring rod 200 from passing axially.

[0054] At the same time, the drill pipe 100 is provided with a measuring slot on its side wall that connects the outside with the measuring channel. The notch of the measuring slot serves as a measuring window 111 and faces vertically toward the outside of the drill pipe 100. A first sensor module 110 is installed at the bottom of the measuring slot. The first sensor module 110 collects in-well data from the outside of the drill pipe 100 through the measuring window 111. The blocking switch structure 300 can synchronously open the measuring window 111 when blocking the measuring section. The measuring rod 200 is provided with a measuring cabin in the measuring section, which integrates at least one second sensor module 220 and a processing circuit. The second sensor module 220 collects in-well data between the drill pipe 100 and the measuring rod 200. Therefore, the measuring device can realize data collection and measurement between the drill pipe 100 and the well wall, and between the drill pipe 100 and the measuring rod 200.

[0055] as well as, Figure 1 The measuring rod 200 is shown with a rod blocking ring 210 configured with a blocking switch structure 300 in the measuring section. Rod blocking ring 210 is positioned above the measuring chamber. When the measuring rod 200 is inserted into the drill pipe 100, the measuring chamber can pass through the blocking switch structure 300, while the rod blocking ring 210 is blocked axially by the blocking switch structure 300. The blocking switch structure 300 simultaneously opens the measuring window 111 when the rod blocking ring 210 blocks it and closes the measuring window 111 when the rod blocking ring 210 is unblocked.

[0056] as well as, Figure 2 The blocking switch structure 300 includes a blocking portion, a switch portion, and a window switch. The blocking portion is used to block the measuring section. The switch portion opens or closes the window switch based on the blocking portion's blocking of the measuring outer rod. The window switch is installed in the notch of the measuring slot.

[0057] The blocking portion of the blocking switch structure 300 includes an upper blocking ring 310, a lower fixing ring 320, and an annular elastic member 330, which are sequentially arranged axially within the measuring channel. The upper blocking ring 310 is axially sleeved within the measuring channel. The lower fixing ring 320 is fixedly connected to the inner wall of the measuring channel. The annular elastic member 330 is fixedly connected between the upper blocking ring 310 and the lower fixing ring 320. Simultaneously, the annular diameters of the upper blocking ring 310 and the lower fixing ring 320 are both larger than the maximum diameter of the measuring rod 200 body and its measuring chamber, and smaller than the outer diameter of the rod blocking ring 210. Therefore, the measuring rod 200 body and the measuring chamber can pass smoothly through the upper blocking ring 310 and the lower fixing ring 320. The rod blocking ring 210 then axially contacts the upper blocking ring 310. At this time, gravity or an external force applied axially causes the upper blocking ring 310 to move downward, compressing the annular elastic member 330 and approaching the lower fixing ring 320. The upper blocking ring 310 will trigger the switch portion when moving downward, and the switch portion will change from a closed state for the window switch to an open state.

[0058] Optionally, the annular elastic member 330 is a spring ring arranged along the axial direction.

[0059] as well as, Figure 2 and Figure 3 The switch assembly is shown as including a connecting rod 500. The window switch is configured as a rotary opening and closing mechanism 400. One end of the connecting rod 500 is rotatably connected to a connecting bar extending downward from the upper blocking ring 310, and the other end is rotatably connected to the driving end 410 of the rotary opening and closing mechanism 400. Therefore, as the upper blocking ring 310 moves downward, the connecting rod 500 pushes the driving end 410 of the rotary opening and closing mechanism 400 to rotate a certain angle, thereby opening or closing the rotary opening and closing mechanism 400.

[0060] Preferably, the rotary opening and closing mechanism 400 is configured as a shutter mechanism. Meanwhile, the blades of the shutter mechanism are made of elastic material. When the blades of the rotary opening and closing mechanism 400 are closed together, a sealing effect can be achieved.

[0061] In some embodiments, the drill rod 100 is provided with a plurality of measuring slots along the axial direction or the circumferential direction, and each measuring slot is provided with a first sensor module 110. When some measuring slots are not in use, plugs 700 can be used to seal them.

[0062] Further, Figure 2 、 Figure 4 and Figure 5The bottom of the measurement slot is shown with a sensor mount and a signal transmission link 630. The sensor mount is used to mount the first sensor module 110, which is electrically connected to the signal transmission link 630. After passing through the measurement slot, the signal transmission link 630 is electrically connected to a first magnetic connection switch 610, which is located within the measurement channel. A second magnetic connection switch 620 is located horizontally with the first magnetic connection switch 610 after the measurement section is blocked. The second magnetic connection switch 620 is electrically connected to the processing circuit. When the first and second magnetic connection switches 610 and 620 come into close proximity, they automatically engage to form a wired communication link. Therefore, each sensor in the first sensor module 110 can be electrically connected to the processing circuit via the signal transmission link 630 and the wired communication link. The processing circuit receives and stores the wellbore data from the first sensor module 110 and the rod data from the second sensor module 220.

[0063] Preferably, the first magnetic connection switch 610 and the second magnetic connection switch 620 are disposed within respective channels and connected to their respective components via wires. When engaged, the first and second magnetic connection switches 610, 620 are magnetically brought together and connected. During the engagement process, the wires between the first and second magnetic connection switches 610, 620 transmit electrical signals while also partially pulling them out of their respective channels. Therefore, when the measuring rod 200 is lifted, the first and second magnetic connection switches 610, 620 overcome the magnetic separation and return to their respective channels.

[0064] In some embodiments, a first wireless transmission module is configured at the bottom of the measurement slot and is electrically connected to the first sensor module 110. A second wireless transmission module is configured within the measurement section and is electrically connected to the processing circuit. The first and second wireless transmission modules form at least a short-range wireless communication link. Therefore, when the measurement section is blocked, the distance between the first and second wireless transmission modules is very short. The wireless communication link between the first and second wireless transmission modules ensures that in-well data from the first sensor module 110 can be effectively transmitted to the processing circuit over a short distance.

[0065] Preferably, the first sensor module 110 includes a pressure sensor, a temperature sensor, and a visual probe. The second sensor module 220 also includes a pressure sensor, a temperature sensor, and the like. Therefore, the data collected by the first and second sensor modules 110, 220, can provide data support for external equipment to monitor the downhole environment and the status of the drill pipe 100.

[0066] Optionally, the drill rod 100 of the present invention employs a conventional drilling tool structure, namely, a connecting outer rod, a measuring outer rod, and a drill bit are sequentially arranged axially along the drill rod 100. The connecting outer rod and the measuring outer rod internally form a measuring channel; the measuring outer rod is circumferentially provided with at least one measuring window 111, and the blocking switch structure 300 is internally provided within the measuring outer rod.

[0067] Based on this, the measuring device of the present invention can be loaded in different geological exploration scenarios, and there is no need to completely expose the sensor outside the drill rod 100, thereby avoiding damage to the sensor and the like when drilling with the drill rod 100, and realizing the automatic opening and measurement of the measuring window 111 when the measuring rod 200 reaches the measuring position; at the same time, the arrangement of sensors inside the measuring rod 200 can take into account the measurement of data inside the drill rod 100, and provide external equipment with multi-faceted data support inside and outside the drill rod 100.

[0068] Furthermore, the present invention discloses a rope coring measurement drill. The rope coring measurement drill includes an outer rod and an inner rod. The outer rod is constructed with an axial channel, and a suspension ring is provided in the axial channel. The inner rod is axially provided with a spear fishing mechanism, a suspension mechanism and a coring mechanism. In the present invention, at least one measuring window 111 is provided on the outer rod, a blocking switch structure 300 is provided in the axial channel, and the suspension ring is replaced with a lower fixed ring 320. The upper blocking ring 310, the annular elastic member 330, the switch and other structures are provided near the original suspension ring in accordance with the present invention. A second sensor module 220 is provided on the inner rod near the measuring window 111. Therefore, the suspension mechanism of the inner rod plays the same technical function as the blocking ring 210 of the rod in the present invention, that is, it is blocked by the lower fixed ring 320 and triggers the blocking switch structure 300, so that the measuring window 111 opened on the outer rod is opened, thereby realizing synchronous measurement inside and outside the outer rod.

[0069] It can be inferred that the measuring device of the present invention can also be applied to a through-the-drill measurement device, which will not be described in detail here.

[0070] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

[0071] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A measuring device, characterized in that: The measuring device includes a drill rod and a measuring rod; The drill rod includes a measuring channel, a measuring window, a blocking switch structure and a first sensor module; The measuring rod is constructed with a measuring section, and the measuring section is provided with at least one second sensor module and a processing circuit. The blocking switch structure is used to block the measuring section from passing through the measuring channel in the axial direction, and the blocking switch structure opens the measuring window when blocking the measuring section; The first sensor module is disposed in the measurement window, and is used to collect in-well data between the drill pipe and the well wall after the measurement window is opened; The second sensor module collects data inside the rod between the drill rod and the measuring rod; The processing circuit receives and stores the in-rod data in a wired manner, and the processing circuit receives and stores the in-hole data in a wired and / or wireless manner when the measurement section is blocked.

2. The measuring device according to claim 1, characterized in that The drill rod is configured with at least one measuring groove along the circumference; The blocking switch structure includes a blocking portion, a switch portion and a window switch; The first sensor module is installed inside the measuring slot, and the window switch is installed at the notch of the measuring slot; The blocking portion is used to block the measuring section from passing through the measuring channel in the axial direction; The switch portion is used to open or close the window switch according to the blocking of the measuring outer rod by the blocking portion.

3. The measuring device according to claim 2, characterized in that The blocking portion includes an upper blocking ring, a lower fixing ring and an annular elastic member which are sequentially arranged in the measuring channel along the axial direction; The upper blocking ring is movably connected in the measuring channel along the axial direction; The lower fixing ring is fixedly connected in the measuring channel; The annular elastic member is fixedly connected between the upper blocking ring and the lower fixing ring; The switch portion is used to open or close the measurement window according to the up and down displacement of the blocking ring.

4. The measuring device according to claim 3, characterized in that The switch portion includes a connecting rod; The connecting rod drives the window switch to open or close according to the up and down displacement of the upper blocking ring.

5. The measuring device according to claim 4, characterized in that The window switch is constructed as a rotary opening and closing mechanism; The driving end of the rotary opening and closing mechanism is rotatably connected to the connecting rod; The other end of the connecting rod relative to the rotary opening and closing mechanism is rotatably connected to the upper blocking ring.

6. The measuring device according to claim 1, characterized in that The bottom of the measuring tank is constructed with a sensor mounting seat and a signal transmission link; The sensor mounting seat is used to mount the first sensor module, and the first sensor module is electrically connected to the signal transmission link; The signal transmission link is electrically connected to a first magnetic connection switch after passing through the measurement slot, and the first magnetic connection switch is arranged in the measurement channel; The measuring section is provided with a second magnetic connection switch, and the second magnetic connection switch is electrically connected to the processing circuit; When the first magnetic connection switch and the second magnetic connection switch are close to each other, they are automatically attracted to form a wired communication link.

7. The measuring device according to claim 1, characterized in that A first wireless transmission module is configured at the bottom of the measuring tank, and the first wireless transmission module is electrically connected to the first sensor module; The measuring section is provided with a second wireless transmission module, and the second wireless transmission module is electrically connected to the processing circuit; The first wireless transmission module and the second wireless transmission module form at least a short-range wireless communication link.

8. The measuring device according to claim 1, characterized in that The first sensor module includes a pressure sensor and a temperature sensor.

9. The measuring device according to claim 1, characterized in that The measuring rod is provided with a transmission signal cable along the axial direction; The processing circuit is communicatively connected to an external device via the transmission signal cable.

10. A wireline coring drilling tool, characterized in that: The drill rod and the measuring rod using the measuring device according to any one of claims 1 to 9.

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