CN215565901U

CN215565901U - Near-bit azimuth gamma measurement while drilling instrument

Info

Publication number: CN215565901U
Application number: CN202121145110.9U
Authority: CN
Inventors: 曹煦; 辛河; 张旭光; 王云; 王伟; 姚春; 杨梦薇; 李冬; 王迪祥; 李伟; 张其方
Original assignee: Zhongxin Hengjiu Tianjin Petroleum Technology Co ltd
Current assignee: Zhongxin Hengjiu Tianjin Petroleum Technology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-01-18
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses a near-bit azimuth gamma measurement-while-drilling instrument, which comprises a drill rod body, a clamping block, a support and an outer frame, wherein an upper light source is arranged inside the drill rod body, a lower light source is arranged inside the drill rod body, the clamping block is fixedly connected with the outer parts of the upper light source and the lower light source, the support is arranged outside the clamping block, and the support is arranged inside the drill rod body. This nearly drill bit position gamma is along with boring measuring instrument, it consolidates the measuring instrument subassembly to additionally adopt fastening assembly through the inside at the drilling rod body, the problem that traditional measuring instrument internal connection stability is not strong when using has been solved, adopt clamp splice and support to fix in the outside of light source under and at last light source, then can play the effect that improves the fastening of light source, it fixes with the outside frame and the parcel piece of adoption of photographic lens under and at last photographic lens simultaneously, can play the purpose of secondary fastening, stability when having improved the application greatly, the practicality is stronger.

Description

Near-bit azimuth gamma measurement while drilling instrument

Technical Field

The utility model relates to the technical field of near bit orientation, in particular to a near bit orientation gamma measurement-while-drilling instrument.

Background

The drill collar type azimuth gamma can realize the detection of stratum lithology in the drilling process, especially keep a borehole track to drill in a target reservoir all the time in the horizontal well drilling process, can also be used for judging the organic matter richness and clay content of a shale reservoir, and identifying the positions of a coal bed gas top plate and a coal bed gas bottom plate, has extremely high application value in the aspects of unconventional oil layer positioning and evaluation and coal bed gas development.

The existing near-bit azimuth gamma measurement while drilling instruments on the market mostly have the following problems when in use:

1. the traditional measurement while drilling instrument is directly fixed in the drill rod when in use, and is not fastened by an external structure when in fixation, so that the connection looseness of internal measurement instrument components is easy to occur along with the continuous increase of the use time, and the connection looseness of the internal measurement instrument components can also be caused to occur to different degrees if the drill rod is collided from the outside, so that the connection stability is not strong in the application process, and certain limitation exists during use;

2. most measurement while drilling instruments adopt a single direction measurement mode in the measurement process, so that the measurement result is not accurate enough easily in the measurement process, the error in the direction is caused, the measurement work of the accurate position cannot be completed at one time, time and labor are wasted during operation, and the convenience is poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a near-bit azimuth gamma measurement-while-drilling instrument, which solves the problems that the existing measurement-while-drilling instrument is directly fixed in a drill rod when in use, and because the existing measurement-while-drilling instrument is fixed without the help of an external structure, the connection of internal measurement instrument components is easy to loosen along with the continuous increase of the use time, and the connection of the internal measurement instrument components is easy to loosen to different degrees if the drill rod per se is collided from the outside, the connection stability is not strong in the application process, certain limitation exists during use, and meanwhile, most measurement-while-drilling instruments adopt a single azimuth measurement mode in the measurement process, so that the measurement result is easy to be inaccurate, and the azimuth error occurs, the measurement work of accurate position can't disposable completion, wastes time and energy during the operation, the relatively poor problem of convenience.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a nearly drill bit position gamma is along with boring measuring instrument, includes drilling rod body, clamp splice, support and outer frame, the inside of drilling rod body is equipped with the light source, the inside of drilling rod body is equipped with down the light source, the outside fixed connection clamp splice of light source and lower light source, the outside of clamp splice is equipped with the support, the support mounting is in the inside of drilling rod body, the inside of drilling rod body is equipped with the photographic lens of going up, the inside of drilling rod body is equipped with down the photographic lens, the parcel piece is cup jointed with the outside of photographic lens down to the photographic lens of going up, the outside fixed connection outer frame of parcel piece, the inside at the drilling rod body is installed to outer frame.

Preferably, the bottom of the drill rod body is fixedly connected with a drill bit, and the interior of the drill rod body is of a hollow structure.

Preferably, the interior of the drill rod body is connected with the directional magnets in an embedded mode, and the directional magnets are symmetrically distributed.

Preferably, the interior of the drill rod body is fixedly connected with an upper compass, the interior of the drill rod body is fixedly connected with a lower compass, the interior of the drill rod body is fixedly connected with a photographic plate, and the upper compass is located between the directional magnets.

Preferably, the outside fixed connection inserted bar of support, the inserted bar inserts in the inside of drilling rod body, the support is the symmetric distribution form, the outside fixed connection fixed plate of outer frame, the fixed plate is connected in the inside of drilling rod body through the mode of inlaying.

Preferably, the upper light source is located above the upper compass, the lower light source is located below the lower compass, the upper camera lens is located below the upper compass, and the lower camera lens is located above the lower compass.

(III) advantageous effects

The utility model provides a near-bit azimuth gamma measurement-while-drilling instrument. The method has the following beneficial effects:

(1) the near-bit orientation gamma measurement while drilling instrument has the advantages that the fastening assembly is additionally arranged inside the drill rod body to reinforce the measurement instrument assembly, the problem that the internal connection stability of the traditional measurement instrument is not high when the measurement instrument is used is solved, the clamping block and the support are adopted to fix the outside of the upper light source and the lower light source, the effect of fastening the light sources can be improved, meanwhile, the outer frame and the wrapping sheet are adopted to fix the outside of the upper photographic lens and the lower photographic lens, and the purpose of secondary fastening can be achieved, so that the connection stability of the two groups of light sources and the two groups of photographic lenses can be ensured when the measurement instrument is used, the condition that the connection is loosened along with the increase of the use time can be avoided, the stability in application is greatly improved, the overall structure is simple, and the practicability is high;

(2) this nearly drill bit position gamma measurement while drilling instrument, through be equipped with independent last compass and compass down in the inside of drilling rod body, then combine the directional magnet structure of inlaying on the drilling rod body again, when this measuring instrument is measured the nearly drill bit like this, utilize the structure that the compass is in between the directional magnet, can survey the position of instrument face, and the compass is in the one end of keeping away from directional magnet down, can realize adjusting the measurement in the north, when two compasses shine on a film simultaneously like this, just can learn the actual position of this nearly drill bit instrument face in the pit, accuracy during the measurement is stronger.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic view of the internal structure of the drill rod body of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2B of the present invention;

fig. 4 is an enlarged view of a portion of fig. 2A of the present invention.

In the drawing, a drill rod body-1, a drill bit-2, an upper light source-3, a lower light source-4, an upper compass-5, a lower compass-6, a directional magnet-7, an upper photographic lens-8, a lower photographic lens-9, a photographic film-10, a clamping block-11, a bracket-12, an inserted link-13, an outer frame-14, a fixing plate-15 and a wrapping sheet-16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: a near-bit orientation gamma measurement while drilling instrument comprises a drill rod body 1, a clamping block 11, a support 12 and an outer frame 14, wherein an upper light source 3 is arranged inside the drill rod body 1, a lower light source 4 is arranged inside the drill rod body 1, the clamping block 11 is fixedly connected with the outer portions of the upper light source 3 and the lower light source 4, the support 12 is arranged outside the clamping block 11, the upper light source 3 and the lower light source 4 can be stably fixed due to the fact that the clamping block 11 is made of rubber materials, the support 12 is installed inside the drill rod body 1, an upper photographic lens 8 is arranged inside the drill rod body 1, a lower photographic lens 9 is arranged inside the drill rod body 1, wrapping sheets 16 are sleeved outside the upper photographic lens 8 and the lower photographic lens 9, the upper photographic lens 8 and the lower photographic lens 9 are fixed through the wrapping sheets 16, and the fastening effect during connection is improved, the outer frame 14 is fixedly connected to the outer portion of the wrapping sheet 16, the outer frame 14 is installed inside the drill rod body 1, and the support 12 and the outer frame 14 are adopted inside the drill rod body 1 for reinforcement connection, so that the purpose of improving the connection stability of the internal components can be achieved.

The bottom fixed connection drill bit 2 of drilling rod body 1, the inside of drilling rod body 1 is established to hollow structure, through seting up hollow structure in drilling rod body 1 is inside, can be observed from the top by the staff, and the convenience is stronger during the operation.

The drill rod body 1 is internally connected with the directional magnets 7 in an embedded mode, the directional magnets 7 are symmetrically distributed, and the measurement work of the direction of the tool face can be realized through the directional magnets 7.

The inside of the drill rod body 1 is fixedly connected with an upper compass 5, the inside of the drill rod body 1 is fixedly connected with a lower compass 6, the inside of the drill rod body 1 is fixedly connected with a photographic film 10, the upper compass 5 is positioned between the directional magnets 7, and the upper compass 5 and the lower compass 6 can be simultaneously irradiated on the photographic film 10, so that the measurement of the actual direction of the tool surface in the underground is realized.

The outside fixed connection inserted bar 13 of support 12, inserted bar 13 inserts in the inside of drilling rod body 1, support 12 is the symmetric distribution form, the outside fixed connection fixed plate 15 of outer frame 14, fixed plate 15 connects in the inside of drilling rod body 1 through the mode of inlaying, is equipped with inserted bar 13 through the outside at support 12, can be stable fix in the inside of drilling rod body 1, and the functionality is stronger.

The upper light source 3 is positioned above the upper compass 5, the lower light source 4 is positioned below the lower compass 6, the upper camera lens 8 is positioned below the upper compass 5, and the lower camera lens 9 is positioned above the lower compass 6, so that the measurement of two directions can be realized by combining the upper compass 5 and the lower compass 6, and the accuracy in measuring the directions is improved.

The working principle is as follows: when the near bit azimuth gamma measurement while drilling instrument is applied, when the downhole position of the tool surface of the bit 2 needs to be measured, the combined measurement instrument arranged in the drill rod body 1 can be used, the independent upper compass 5 and lower compass 6 structures are arranged in the drill rod body 1, and then the directional magnet 7 structure embedded in the drill rod body 1 is combined, so when the measurement instrument starts to measure the near bit 2, firstly, the azimuth of the tool surface can be measured by using the structure that the upper compass 5 is positioned between the directional magnets 7, and the lower compass 6 is positioned at one end far away from the directional magnet 7, the north alignment measurement can be realized, so when two compasses irradiate on one substrate at the same time, the actual underground orientation of the tool surface of the near bit 2 can be known, the measurement accuracy is improved, and simultaneously, in the application process of the measurement while drilling instrument, since the fastening assembly is additionally used inside the drill rod body 1 to reinforce the gauge assembly, the clamping blocks 11 and the brackets 12 are used for fixing the outer parts of the upper light source 3 and the lower light source 4, so that the effect of fastening the light sources can be improved, while the outer portions of the upper and lower photographing lenses 8 and 9 are fixed using the outer frame 14 and the wrapping sheet 16, the purpose of secondary fastening can be achieved, so that the connection stability of the two groups of light sources and the two groups of camera lenses can be ensured in the using process of the measurement while drilling instrument, the condition that the connection is loosened along with the increase of the using time can not occur, if this drill bit 2 receives when coming from outside striking equally, the shaking force of inside transmission also can not exert an influence to light source and photographic lens, stability when having improved the application greatly, overall structure is simple, and the practicality is stronger.

The drill rod body 1, the drill bit 2, the upper light source 3, the lower light source 4, the upper compass 5, the lower compass 6, the directional magnet 7, the upper photographic lens 8, the lower photographic lens 9, the photographic film 10, the clamping block 11, the bracket 12, the inserted rod 13, the outer frame 14, the fixing plate 15 and the wrapping sheet 16 are all universal standard parts or parts known by a person skilled in the art, the structure and the principle of the parts can be known by a technical manual or a conventional experimental method, the problem solved by the utility model is that the existing measurement while drilling instrument is directly fixed in the drill rod when in use, and because the connection of the internal measurement instrument component is not fastened by an external structure during fixing, the internal measurement instrument component is easy to be loosened along with the continuous increase of the use time, and if the drill rod is collided from the outside, the internal measurement instrument component is also loosened to different degrees, the connection stability is not strong in the application process, certain limitation exists during the use, and meanwhile, most measurement while drilling instruments adopt a single direction measurement mode in the measurement process, so that the measurement result is not accurate enough easily in the measurement process, the direction error is caused, the measurement work of accurate position cannot be completed at one time, the operation is time-consuming and labor-consuming, the convenience is poor and the like, the measurement instrument assembly is reinforced by additionally adopting a fastening assembly in the drill rod body 1 through the mutual combination of the components, the clamping block 11 and the bracket 12 are adopted to fix the outer parts of the upper light source 3 and the lower light source 4, the effect of fastening the light sources can be improved, and meanwhile, the outer frame 14 and the wrapping sheet 16 are adopted to fix the outer parts of the upper photographic lens 8 and the lower photographic lens 9, can play the purpose of secondary fastening, so just can guarantee the connection stability ability of two sets of light sources and two sets of camera lenses when using, can not appear leading to connecting the not hard up condition along with the increase of live time, simultaneously because be equipped with independent compass 5 and compass 6 down in the inside of drilling rod body 1, then combine the directional magnet 7 structure of inlaying on the drilling rod body 1, so when this measuring instrument is measured near bit 2, utilize the structure that compass 5 is in between directional magnet 7, can survey the position of instrument face, and compass 6 is in the one end of keeping away from directional magnet 7 down, can realize adjusting the measurement of north well, when two compasses shine on a piece of film simultaneously, just can learn the actual position of this near bit 2 instrument face in the pit, the accuracy during measurement is stronger.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A near-bit azimuth gamma measurement while drilling instrument is characterized in that: comprises a drill rod body (1), a clamping block (11), a bracket (12) and an outer frame (14), an upper light source (3) is arranged inside the drill rod body (1), a lower light source (4) is arranged inside the drill rod body (1), the outer parts of the upper light source (3) and the lower light source (4) are fixedly connected with a clamping block (11), a bracket (12) is arranged outside the clamping block (11), the bracket (12) is arranged inside the drill rod body (1), an upper photographic lens (8) is arranged inside the drill rod body (1), a lower photographic lens (9) is arranged inside the drill rod body (1), wrapping sheets (16) are sleeved outside the upper photographic lens (8) and the lower photographic lens (9), the outer portion of the wrapping sheet (16) is fixedly connected with an outer frame (14), and the outer frame (14) is installed inside the drill rod body (1).

2. The near-bit azimuth gamma while drilling measuring instrument of claim 1, wherein: the drill rod is characterized in that a drill bit (2) is fixedly connected to the bottom of the drill rod body (1), and the interior of the drill rod body (1) is of a hollow structure.

3. The near-bit azimuth gamma while drilling measuring instrument of claim 1, wherein: the drill rod body (1) is internally connected with the directional magnets (7) in an embedded mode, and the directional magnets (7) are symmetrically distributed.

4. The near-bit azimuth gamma while drilling measuring instrument of claim 1, wherein: the inner part of the drill rod body (1) is fixedly connected with an upper compass (5), the inner part of the drill rod body (1) is fixedly connected with a lower compass (6), the inner part of the drill rod body (1) is fixedly connected with a photographic film (10), and the upper compass (5) is positioned between the directional magnets (7).

5. The near-bit azimuth gamma while drilling measuring instrument of claim 1, wherein: the outside fixed connection inserted bar (13) of support (12), inserted bar (13) insert in the inside of drilling rod body (1), support (12) are the symmetric distribution form, outside fixed connection fixed plate (15) of outer frame (14), the inside at drilling rod body (1) is connected through the mode of inlaying in fixed plate (15).

6. The near-bit azimuth gamma while drilling measuring instrument of claim 1, wherein: the upper light source (3) is located above the upper compass (5), the lower light source (4) is located below the lower compass (6), the upper photographic lens (8) is located below the upper compass (5), and the lower photographic lens (9) is located above the lower compass (6).