CN215057318U - Near-bit well deviation measurement while drilling instrument - Google Patents
Near-bit well deviation measurement while drilling instrument Download PDFInfo
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- CN215057318U CN215057318U CN202121933320.4U CN202121933320U CN215057318U CN 215057318 U CN215057318 U CN 215057318U CN 202121933320 U CN202121933320 U CN 202121933320U CN 215057318 U CN215057318 U CN 215057318U
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Abstract
A near-bit well deviation measurement while drilling instrument comprises a tube body, wherein two opposite detector installation grooves are formed in the side wall of the tube body, a shielding layer and an elastic cushion layer are sequentially arranged on the side wall of each detector installation groove, and the detector installation grooves are matched with natural gamma detectors in shape; still be equipped with high-pressure sealing layer mounting groove on the body, be equipped with simultaneously with high-pressure sealing layer mounting groove assorted high-pressure sealing layer, be equipped with on the high-pressure sealing layer with detector mounting groove assorted first compact heap, be equipped with first elastic layer on the first compact heap, high-pressure sealing layer both ends are equipped with the screw hole. Through setting up elastic cushion and a plurality of elastic layer, the influence of the lasting high strength vibration of reduction drill bit that can furthest to each detecting instrument under the condition of guaranteeing to detect the precision, can also prolong the life-span of each detecting instrument.
Description
Technical Field
The utility model relates to a logging equipment technical field, concretely relates to nearly drill bit well deviation is along with boring measuring apparatu.
Background
During the petroleum drilling process, the well is usually drilled to the designed well depth and then the well is logged to obtain the formation data and the engineering data. Generally, oil and gas wells are divided into vertical wells perpendicular to the ground and slant wells at an angle to the ground according to the need of oil and gas production. Meanwhile, in the drilling process, if the drill bit is not monitored and adjusted in real time, the final inclination angle of the oil-gas well and the relative position of the final inclination angle and the target oil-gas reservoir cannot be accurately determined. Therefore, the measurement data of the well deviation is an important engineering data, and during the drilling process, the measurement while drilling needs to be carried out on the well deviation data.
Chinese patent CN209228357U discloses a near-well drill bit well deviation measurement while drilling instrument, which arranges a triaxial acceleration sensor and a gamma sensor in a triangular triangle with a triangular cross section to complete the real-time measurement of well deviation and lithology, however, in the patent, the installation mode of the triaxial acceleration sensor and the gamma sensor is unstable, and meanwhile, because the instrument is close to the drill bit, the vibration degree is large, which not only easily falls off, but also easily causes the detection result to have a large error, and simultaneously, in the vibration process, the triaxial acceleration sensor and the gamma sensor are easily damaged.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to provide a nearly drill bit well deviation is along with boring measuring apparatu, its influence that the strong vibration that lasts of reduction drill bit that can be very big brought measurement accuracy can prolong the life-span of measuring apparatu simultaneously.
The utility model provides a technical scheme is that a near-bit well deviation measurement while drilling instrument, comprising a pipe body, wherein two opposite detector mounting grooves are arranged on the side wall of the pipe body, a shielding layer and an elastic cushion layer are sequentially arranged on the side wall of the detector mounting groove, and the detector mounting groove is matched with a natural gamma detector in shape; still be equipped with high-pressure sealing layer mounting groove on the body, be equipped with simultaneously with high-pressure sealing layer mounting groove assorted high-pressure sealing layer, be equipped with on the high-pressure sealing layer with detector mounting groove assorted first compact heap, be equipped with first elastic layer on the first compact heap, high-pressure sealing layer both ends are equipped with the screw hole.
The utility model discloses an embodiment lies in, still be equipped with circuit board mounting groove and triaxial acceleration sensor mounting groove on the pipe body lateral wall, be equipped with on the high pressure sealing layer with circuit board mounting groove assorted second compact heap, be equipped with the second elastic layer on the second compact heap, be equipped with on the high pressure sealing layer with triaxial acceleration sensor mounting groove assorted third compact heap, be equipped with the third elastic layer on the third compact heap.
The utility model discloses a further embodiment lies in, be equipped with the elastic cushion in the circuit board mounting groove, be equipped with the elastic cushion in the triaxial acceleration sensor mounting groove.
The utility model discloses an embodiment lies in, the body upper end is equipped with the top connection, the body lower extreme is equipped with the lower clutch.
An embodiment of the present invention is that a liquid flow channel is provided in the tube body.
The utility model discloses an embodiment lies in, be equipped with the wire casing on the body, the wire inslot is equipped with the wire.
The utility model discloses the technical effect who plays is:
by arranging the elastic cushion layer and the elastic layers, the influence of continuous high-strength vibration of the drill bit on each detection instrument can be reduced to the maximum extent, and the service life of each detection instrument can be prolonged under the condition of ensuring the detection precision; through setting up high-pressure seal layer and a plurality of compact heap, can prevent droing of each detecting instrument in can being fixed in the mounting groove with each detecting instrument is firm.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is the structure schematic diagram of the near-bit well deviation measurement while drilling instrument of the present invention.
FIG. 2 is a schematic structural view of section A-A in FIG. 1;
FIG. 3 is a schematic diagram of the exploded structure of FIG. 2;
FIG. 4 is a schematic structural view of a mounting groove of the detector shown in FIG. 2;
FIG. 5 is a schematic view of a mounting groove of the circuit board shown in FIG. 2;
fig. 6 is a schematic structural diagram of a mounting groove of the triaxial acceleration sensor in fig. 2.
In the figure, 1 is a pipe body, 2 is an upper joint, 3 is a lower joint, 4 is a liquid flow channel, 5 is a natural gamma detector, 6 is a circuit board, 7 is a triaxial acceleration sensor, 8 is a threaded hole, 9 is a wire casing, 10 is a high-pressure sealing layer, 11 is a detector mounting groove, 12 is a circuit board mounting groove, 13 is a triaxial acceleration sensor mounting groove, 14 is a first pressing block, 15 is a second pressing block, 16 is a third pressing block, 17 is a first elastic layer, 18 is an elastic cushion layer, 19 is a shielding layer, 20 is a second elastic layer, 21 is a third elastic layer, and 22 is a high-pressure sealing layer mounting groove.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Referring to fig. 2-4, the near-bit well deviation measurement while drilling instrument comprises a pipe body 1, wherein two opposite detector installation grooves 11 are formed in the side wall of the pipe body 1, a shielding layer 19 and an elastic cushion layer 18 are sequentially arranged on the side wall of each detector installation groove 11, and the detector installation grooves 11 are matched with a natural gamma detector 5 in shape; still be equipped with high-pressure sealing layer mounting groove 22 on the body 1, be equipped with simultaneously with high-pressure sealing layer 10 of high-pressure sealing layer mounting groove 22 assorted, be equipped with on the high-pressure sealing layer 10 with the first compact heap 14 of detector mounting groove 11 assorted, be equipped with first elastic layer 17 on the first compact heap 14, high-pressure sealing layer 22 both ends are equipped with screw hole 8.
Specifically, referring to fig. 1, an upper connector 2 is arranged at the upper part of a pipe body 1, and a lower connector 3 is arranged at the lower part of the pipe body 1, and is used for installing the measuring instrument to a position close to a drill bit; meanwhile, in order to ensure the normal operation of the whole drilling equipment, a liquid flow channel 4 is arranged inside the pipe body and used for the circulation of drilling liquid.
Referring to fig. 2 to 4, two detector installation grooves 11 are formed in the side wall of the pipe body 1, the two detector installation grooves 11 are arranged oppositely, and a natural gamma detector 5 is arranged in each detector installation groove 11 to detect lithology in the drilling process; in order to reduce interference and enable the natural gamma detector 5 to only detect gamma rays in front of the natural gamma detector, a shielding layer 19 is arranged in the detector mounting groove 11, and the shielding layer 19 can prevent noise from being received by the natural gamma detector 5 and generating noise; because whole measuring apparatu is installed in nearly drill bit position, in the drilling process, under the effect of drill bit, whole measuring apparatu can be continuous receive strong vibration, and simultaneously, see with prior art, natural gamma detector 5 is difficult to accomplish and the seamless laminating of the lateral wall of detector mounting groove 11, therefore, in order to reduce the influence of lasting strong vibration to natural gamma detector 5, one deck elastic cushion 18 still is installed to shielding layer 19 top in detector mounting groove 11, under the influence of long-time strong vibration, elastic cushion 18 can absorb most energy, reduce the influence that natural gamma detector 5 received, prolong its life-span.
Referring to fig. 3, 5-6, in order to ensure the normal operation, a circuit board 6 for receiving, processing and storing measurement data, a triaxial acceleration sensor 7 for measuring a drilling path and a well inclination are further provided, meanwhile, in order to fix the circuit board 6 and the triaxial acceleration sensor 7, a circuit board mounting groove 12 and a triaxial acceleration sensor mounting groove 13 are provided, in order to reduce the influence of continuous strong vibration on the circuit board 6 and the triaxial acceleration sensor 7, elastic cushion layers 18 are arranged in the circuit board mounting groove 12 and the triaxial acceleration sensor mounting groove 13, so that vibration energy can be absorbed, and the service lives of the two can be prolonged. In the present embodiment, the circuit board mounting groove 12 and the triaxial acceleration sensor mounting groove 13 are respectively provided at the two detector mounting grooves 11 side.
Referring to fig. 2-3, in order to ensure that the natural gamma detector 5, the circuit board 6 and the three-axis acceleration sensor 7 are stably fixed in the respective mounting grooves, a high-pressure sealing layer mounting groove 22 is further provided on the pipe body 1, and a high-pressure sealing layer 10 matched with the high-pressure sealing layer mounting groove is also provided. In the present embodiment, there are 2 high-pressure packing layer mounting grooves 22, and correspondingly, there are 2 high-pressure packing layers 10, where one high-pressure packing layer 10 is used to seal one detector mounting groove 11 and circuit board mounting groove 12, and the other high-pressure packing layer 10 is used to seal the other detector mounting groove 11 and triaxial acceleration sensor mounting groove 13.
In order to ensure the sealing effect, a plurality of pressing blocks and an elastic layer are arranged on the high-pressure sealing layer 10, and the elastic layer is arranged on the upper parts of the pressing blocks and is in direct contact with the to-be-sealed piece. Among them, for compressing the natural gamma detector 5 are the first compressing block 14 and the first elastic layer 17, for compressing the circuit board 6 are the second compressing block 15 and the second elastic layer 20, and for compressing the triaxial acceleration sensor 7 are the third compressing block 16 and the third elastic layer 21.
In other embodiments, a wire slot 9 is further provided inside the pipe body 1, and a wire is provided in the wire slot 9 for supplying power and transmitting information to the ground.
When the device is used, the natural gamma detector 5, the circuit board 6 and the triaxial acceleration sensor 7 are connected with a circuit and then are respectively installed in corresponding installation grooves, the natural gamma detector, the circuit board and the triaxial acceleration sensor are sealed by the high-pressure sealing layer 10, and the high-pressure sealing layer 10 is fixed by bolts. The whole measuring instrument is connected with the drilling tool through the upper joint 2 and the lower joint 3, and then the operation can be started.
For the natural gamma detector, the circuit board and the three-axis acceleration sensor, because the periphery of the natural gamma detector, the circuit board and the three-axis acceleration sensor is made of elastic materials (an elastic cushion layer and an elastic layer), the influence on the natural gamma detector is small even under continuous strong vibration conditions, and the service life of the natural gamma detector, the circuit board and the three-axis acceleration sensor is long compared with that of a conventional device.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the present invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are all covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The near-bit well deviation measurement while drilling instrument is characterized by comprising a tube body, wherein two opposite detector installation grooves are formed in the side wall of the tube body, a shielding layer and an elastic cushion layer are sequentially arranged on the side wall of each detector installation groove, and the detector installation grooves are matched with natural gamma detectors in shape; still be equipped with high-pressure sealing layer mounting groove on the body, be equipped with simultaneously with high-pressure sealing layer mounting groove assorted high-pressure sealing layer, be equipped with on the high-pressure sealing layer with detector mounting groove assorted first compact heap, be equipped with first elastic layer on the first compact heap, high-pressure sealing layer both ends are equipped with the screw hole.
2. The near-bit well deviation measurement while drilling instrument according to claim 1, wherein a circuit board mounting groove and a triaxial acceleration sensor mounting groove are further formed in the side wall of the pipe body, a second compact block matched with the circuit board mounting groove is arranged on the high-pressure sealing layer, a second elastic layer is arranged on the second compact block, a third compact block matched with the triaxial acceleration sensor mounting groove is arranged on the high-pressure sealing layer, and a third elastic layer is arranged on the third compact block.
3. The near-bit well deviation measurement while drilling instrument according to claim 2, wherein an elastic cushion layer is arranged in the circuit board mounting groove, and an elastic cushion layer is arranged in the triaxial acceleration sensor mounting groove.
4. The near-bit well deviation measurement while drilling instrument as claimed in claim 1, wherein an upper joint is provided at the upper end of the pipe body, and a lower joint is provided at the lower end of the pipe body.
5. The near-bit well deviation measurement while drilling instrument of claim 1, wherein a fluid channel is provided in the pipe body.
6. The near-bit well deviation measurement-while-drilling instrument as claimed in claim 1, wherein a wire groove is arranged on the pipe body, and a wire is arranged in the wire groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121933320.4U CN215057318U (en) | 2021-08-18 | 2021-08-18 | Near-bit well deviation measurement while drilling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121933320.4U CN215057318U (en) | 2021-08-18 | 2021-08-18 | Near-bit well deviation measurement while drilling instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215057318U true CN215057318U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121933320.4U Active CN215057318U (en) | 2021-08-18 | 2021-08-18 | Near-bit well deviation measurement while drilling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215057318U (en) |
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2021
- 2021-08-18 CN CN202121933320.4U patent/CN215057318U/en active Active
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