CN220081417U - Near-bit azimuth gamma instrument - Google Patents

Abstract

The utility model discloses a near-bit azimuth gamma instrument, which relates to the technical field of near-bit azimuth gamma instruments and comprises a drill rod body, wherein a mounting through groove is formed in the drill rod body, a photographic film and a compass are fixedly arranged in the mounting through groove, a bracket is fixedly arranged on the inner side wall of the mounting through groove, one end of the bracket is fixedly connected with a clamping block, the inner side walls of the two clamping blocks are abutted to a light source, and a fixing plate is detachably connected with the inner side wall of the mounting through groove. According to the utility model, through the arrangement of the fixing plate, the inserting block, the spring, the poking clamping block and the clamping groove, after the gamma instrument with the near bit direction is used for a period of time, under the vibration of the near bit body, the outer frame and the wrapping sheet outside the photographic lens can be loosened, so that the position of the photographic lens is unstable, the outer frame can be well detached and replaced, and the problem of measurement deviation caused by the unstable position of the photographic lens is prevented.

Description

Near-bit azimuth gamma instrument

Technical Field

The utility model relates to the technical field of near-bit azimuth gamma instruments, in particular to a near-bit azimuth gamma instrument.

Background

The drill collar type azimuth gamma can realize the detection of stratum lithology in the drilling process, particularly can keep the borehole track to drill in the target reservoir all the time in the horizontal well drilling process, can also be used for judging the richness of organic matters and clay content of shale reservoirs, can identify the positions of a coal bed methane top plate and a coal bed methane bottom plate, has extremely high application value in the aspects of unconventional oil layer positioning and evaluation and coal bed methane development, and compared with natural gamma, the azimuth gamma instrument has the directivity data added in stratum data, namely the borehole is divided into a plurality of sectors, the measurement data is accurate to gamma data of each sector, and can be generally applied to the fields of development of thin oil layers and coal gas layers, measurement of natural gamma in specific directions, judgment of interface positions of different strata, stratum dip angles and the like.

The utility model discloses a near-bit azimuth gamma measurement while drilling instrument, which comprises a drill rod body, a clamp splice, a bracket and an outer frame, wherein an upper light source is arranged in the drill rod body, a lower light source is arranged in the drill rod body, the clamp splice is fixedly connected with the outer parts of the upper light source and the lower light source, the bracket is arranged outside the clamp splice, and the bracket is arranged in the drill rod body. This near drill bit position gamma is along with boring measuring instrument, through additionally adopting fastening component to consolidate measuring instrument subassembly in the inside of 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 last light source and lower light source, then can play the effect that improves the light source fastening, adopt outer frame and parcel piece to fix in the outside of last photographic lens and lower photographic lens simultaneously, can play the purpose of secondary fastening, stability when having improved the application greatly, the practicality is stronger.

In the reference document, after the near-bit azimuth gamma instrument is used for a period of time, under the vibration of the bit, the outer frame and the wrapping sheet of the photographic lens may be loosened, so that the position of the photographic lens is unstable and needs to be replaced periodically, and therefore, the near-bit azimuth gamma instrument is provided.

Disclosure of Invention

The utility model aims to provide a near-bit azimuth gamma instrument, which solves the problems that after the near-bit azimuth gamma instrument is used for a period of time, the outer frame and the wrapping sheet of a photographic lens are possibly loosened under the vibration of a bit, so that the position of the photographic lens is unstable and needs to be replaced periodically.

The utility model provides a near-bit azimuth gamma instrument, which adopts the following technical scheme:

the gamma instrument comprises a drill rod body, wherein a mounting through groove is formed in the drill rod body, a photographic film and a compass are fixedly arranged in the mounting through groove, and a bracket is fixedly arranged on the inner side wall of the mounting through groove;

one end fixedly connected with clamp splice of support, two the inside wall butt of clamp splice has the light source, the inside wall of installation logical groove can be dismantled and be connected with the fixed plate, one side fixedly connected with outer frame of fixed plate, the inside wall fixedly connected with parcel piece of outer frame, the inside wall parcel of parcel piece has photographic lens, photographic lens is located the both sides of photographic film. Gamma data of each sector can be measured well.

Preferably, the inside of the drill rod body is connected with directional magnets in an embedded mode, and the directional magnets are symmetrically distributed. By means of the structure that the compass above is located between the directional magnets, the orientation of the tool face can be measured, and the compass below is located at one end far away from the directional magnets, so that the measurement of the north direction can be achieved.

Preferably, a support column is installed at the bottom of the drill rod body, and a near-bit body is installed at the bottom of the support column. The near-bit body can well drill holes.

Preferably, the outer side wall of the support column is fixedly provided with a first thermoelectric ring, the outer side wall of the drill rod body is fixedly provided with a second thermoelectric ring, and the interior of the drill rod body is fixedly provided with a lithium battery. The first thermoelectric ring and the second thermoelectric ring can rub against the drill wall, and the difference in friction speed can generate a heat difference.

Preferably, the support column, the first thermoelectric ring and the lithium battery form a thermoelectric conversion structure. The different friction speeds between the first thermoelectric ring and the second thermoelectric ring and the drill wall generate heat quantity difference, heat energy is converted into electric energy to be stored in the lithium battery, and the service time of the near-bit body is prolonged.

Preferably, one side fixedly connected with inserted block of fixed plate, rectangular channel has been seted up to the inside of drilling rod body, rectangular channel's inside wall fixedly connected with spring, the one end fixedly connected with of spring stirs the joint piece, the joint groove has been seted up to the inside of inserted block, stir the joint piece and joint groove each other joint. Ensuring the connection stability of the two groups of photographic lenses.

Preferably, the fixing plate, the inserting block, the spring, the poking clamping block and the clamping groove form a detachable clamping structure. The external frame can be well detached and replaced, so that the installation process is convenient and quick, and the problem of measurement deviation caused by unstable position of the photographic lens is prevented.

Compared with the prior art, the utility model has the beneficial effects that:

through adopting fixed plate, inserted block, spring, stirring the setting of joint piece and joint groove, after using near bit position gamma instrument a period, under near the vibrations of drill bit body, photographic lens outside outer frame and parcel piece can appear becoming flexible to make photographic lens position unstable, this setting can be fine dismantle and change to outer frame, make mounting process convenient and fast, prevent to appear photographic lens position unstable and lead to measuring deviation's problem. Through adopting the setting of first thermoelectric ring, second thermoelectric ring and lithium cell, the different friction speed between first thermoelectric ring and the second thermoelectric ring and the brill wall produces the heat quantity difference, converts heat energy into electric energy and stores in the lithium cell, has increased near the live time of drill bit body.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a schematic view of a photographic lens according to the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3B according to the present utility model;

FIG. 5 is a schematic view of a near bit body according to the present utility model;

in the figure: 1. a drill rod body; 2. a support column; 3. a near bit body; 4. a first thermoelectric ring; 5. a photographic negative; 6. a compass; 7. a second thermoelectric ring; 8. a lithium battery; 9. a bracket; 10. clamping blocks; 11. a light source; 12. an outer frame; 13. wrapping sheets; 14. a photographic lens; 15. a fixing plate; 16. inserting blocks; 17. a spring; 18. the clamping block is stirred; 19. and a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model will be described in further detail with reference to figures 1-5,

an embodiment of the present utility model provides: referring to fig. 1 and 5, a gamma instrument for near-bit azimuth comprises a drill rod body 1, a support column 2 is installed at the bottom of the drill rod body 1, a near-bit body 3 is installed at the bottom of the support column 2, the near-bit body 3 can well drill, a first thermoelectric ring 4 is fixedly installed on the outer side wall of the support column 2, a second thermoelectric ring 7 is fixedly installed on the outer side wall of the drill rod body 1, a lithium battery 8 is fixedly installed in the drill rod body 1, friction can be carried out between the first thermoelectric ring 4 and the second thermoelectric ring 7 and the drill wall, the friction speeds are different, heat difference can be generated, and the support column 2, the first thermoelectric ring 4 and the lithium battery 8 form a thermoelectric conversion structure, the different friction speeds between the first thermoelectric ring 4 and the second thermoelectric ring 7 and the drill wall generate heat quantity difference, heat energy is converted into electric energy to be stored in the lithium battery 8, the service time of the drill bit body 3 is prolonged, the installation through groove is formed in the drill rod body 1, the photographic negative 5 and the compass 6 are fixedly arranged in the installation through groove, the directional magnets are connected in the drill rod body 1 in an embedded mode, the directional magnets are in a symmetrical distribution mode, the compass 6 above is in a structure between the directional magnets, the direction of a tool surface can be measured, the compass 6 below is located at one end far away from the directional magnets, the measurement of the right north direction can be achieved, and the support 9 is fixedly arranged on the inner side wall of the installation through groove.

Referring to fig. 2, 3 and 4, one end fixedly connected with clamp splice 10 of support 9, the inside wall butt of two clamp splice 10 has light source 11, the inside wall in installation logical groove can be dismantled and is connected with fixed plate 15, one side fixedly connected with outer frame 12 of fixed plate 15, the inside wall fixedly connected with parcel piece 13 of outer frame 12, the inside wall parcel of parcel piece 13 has photographic lens 14, photographic lens 14 is located the both sides of photographic film 5, one side fixedly connected with inserted block 16 of fixed plate 15, rectangular channel has been seted up to the inside of drilling rod body 1, rectangular channel's inside wall fixedly connected with spring 17, the one end fixedly connected with of spring 17 stirs joint piece 18, joint groove 19 has been seted up to the inside of inserted block 16, stir joint piece 18 and joint groove 19 each other joint, guarantee the connection stability of two sets of photographic lenses 14, fixed plate 15, inserted block 16, spring 17, stir joint piece 18 and joint groove 19 and constitute and can dismantle the joint structure, can be fine frame 12 dismantlement and change for the mounting process is convenient and fast, prevent that the position of photographic lens 14 from appearing and unstable and leading to the measurement data of every sector of gamma that can measure.

Working principle: when the gamma instrument for measuring the position of the near-bit is used for measuring the position in the pit, the combined measuring instrument arranged in the drill rod body 1 is used for realizing, the structure of the independent upper compass 6 and the independent lower compass 6 are arranged in the drill rod body 1, then the directional magnet embedded on the drill rod body 1 is combined, and when the gamma instrument for measuring the position of the tool face can be measured by firstly using the compass 6 above, the compass 6 below is positioned at one end far away from the directional magnet, the measurement on the north direction can be realized, so that when the two compasses 6 simultaneously irradiate on a negative film, the actual position of the tool face of the near-bit body 3 in the pit can be known, the accuracy in measurement is improved, the outer frames 12 and the wrapping piece 13 of the upper photographic lens 14 and the lower photographic lens 14 are adopted for fixing, after a period of use, the outer frames 12 and the wrapping piece 13 outside the photographic lens 14 can be loose under vibration of the near-bit body 3, and therefore the positions of the photographic lens 14 are unstable, the inserting blocks 16, the springs 17, the poking clamping blocks 18 and the clamping grooves 19 can be arranged at one end far away from the directional magnet, the other end, the two frames can be well removed, the thermal energy can be prevented from being converted into the first thermal energy, the thermal energy can be converted into the thermal energy, and the thermal energy can be converted into the thermal energy and stable to the thermal energy and the thermal energy can be converted into the thermal energy and stable to the thermal energy and the thermal energy can be converted to the thermal energy.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in 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.

Claims (7)

1. The utility model provides a near drill bit position gamma instrument, includes drilling rod body (1), its characterized in that: a mounting through groove is formed in the drill rod body (1), a photographic film (5) and a compass (6) are fixedly arranged in the mounting through groove, and a bracket (9) is fixedly arranged on the inner side wall of the mounting through groove;

one end fixedly connected with clamp splice (10) of support (9), two the inside wall butt of clamp splice (10) has light source (11), the inside wall of installation logical groove can be dismantled and be connected with fixed plate (15), one side fixedly connected with outer frame (12) of fixed plate (15), the inside wall fixedly connected with parcel piece (13) of outer frame (12), the inside wall parcel of parcel piece (13) has photographic lens (14), photographic lens (14) are located the both sides of photographic film (5).

2. The near bit azimuth gamma instrument of claim 1, wherein: the inside of drilling rod body (1) is connected with directional magnet through the mode of inlaying, directional magnet is symmetrical distribution form.

3. The near bit azimuth gamma instrument of claim 2, wherein: the bottom of drilling rod body (1) is installed support column (2), near drill bit body (3) are installed to the bottom of support column (2).

4. A near bit azimuth gamma instrument according to claim 3, wherein: the outer side wall of the support column (2) is fixedly provided with a first thermoelectric ring (4), the outer side wall of the drill rod body (1) is fixedly provided with a second thermoelectric ring (7), and the interior of the drill rod body (1) is fixedly provided with a lithium battery (8).

5. The near bit orientation gamma instrument of claim 4 wherein: the support column (2), the first thermoelectric ring (4) and the lithium battery (8) form a thermoelectric conversion structure.

6. The near bit orientation gamma instrument of claim 5, wherein: one side fixedly connected with inserted block (16) of fixed plate (15), rectangular channel has been seted up to the inside of drilling rod body (1), inside wall fixedly connected with spring (17) in rectangular channel, the one end fixedly connected with of spring (17) stirs joint piece (18), joint groove (19) have been seted up to the inside of inserted block (16), stir joint piece (18) and the mutual joint in joint groove (19).

7. The near bit orientation gamma instrument of claim 6, wherein: the fixing plate (15), the inserting block (16), the spring (17), the poking clamping block (18) and the clamping groove (19) form a detachable clamping structure.