CN211623395U - Low-power high-precision nuclear magnetic logging instrument - Google Patents
Low-power high-precision nuclear magnetic logging instrument Download PDFInfo
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- CN211623395U CN211623395U CN201922321691.6U CN201922321691U CN211623395U CN 211623395 U CN211623395 U CN 211623395U CN 201922321691 U CN201922321691 U CN 201922321691U CN 211623395 U CN211623395 U CN 211623395U
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Abstract
The utility model discloses a low-power high accuracy nuclear-magnetism logging instrument, concretely relates to technical field is surveyed in the well drilling, survey the nipple joint including energy storage nipple joint, electronic circuit nipple joint and nuclear-magnetism, energy storage nipple joint and nuclear-magnetism are surveyed the nipple joint and are set up the top and the bottom at the electronic circuit nipple joint respectively, the nipple joint is surveyed to nuclear-magnetism includes a lag section of thick bamboo. The utility model discloses a first electric putter output promotes the mounting bracket and makes nuclear magnetic probe steadily shift out protective sleeve opening and survey when examining, the cover reinforcing signal source is concentrated to the signal, reduce the interference influence, control first electric putter output area nuclear magnetic probe and return after the detection is accomplished, three doctor-bars of group carry out the contact of not equidimension and the overweight clearance of different positions to nuclear magnetic probe in grades, and cooperate the brush, can clear up its bottom after nuclear magnetic probe accomodates, scrape dust and water stain, it is clean thorough, the protection probe reducing wear, be favorable to guaranteeing nuclear magnetic probe's life and detection precision.
Description
Technical Field
The utility model relates to a technical field is surveyed in the well drilling, more specifically says, the utility model relates to a low-power high accuracy nuclear-magnetism logging instrument.
Background
The nuclear magnetic resonance logging is a new logging technology suitable for open hole well, is the only logging method which can directly measure the seepage volume characteristics of free fluids (oil, gas and water) of any lithologic reservoir at present and can determine the divided reservoirs; calculating the effective porosity of the reservoir; determining the permeability and the large particles; determining residual oil saturation; partitioning mobile oil-containing interbeds in an asphalted reservoir; estimating the free water content of the oil-bearing stratum and determining the productivity of the reservoir stratum; the evaluation of the low-resistivity oil layer has obvious superiority in the field of well drilling detection.
When the well is actually logged, the earth magnetic field is used as a static magnetic field, a strong polarizing magnetic field is firstly applied to the stratum through a downhole instrument, after hydrogen nuclei are completely polarized, the polarizing field is removed, the magnetization vector of the hydrogen nuclei freely precesses around the earth magnetic field, an induced electromotive force can be measured in a receiving coil, and the strength and the duration of the induced electromotive force generated by the bound water and the movable fluid in the receiving coil are different due to different relaxation times of the bound water and the movable fluid. The relaxation time of the bound water and the movable fluid is calibrated in advance before logging, so that the information of the bound water and the movable fluid can be directly reflected on a logging curve, and the saturation of the free water and the bound water can be directly calculated.
However, the existing nuclear magnetic logging device still has many defects in practical use, for example, a nuclear magnetic logging instrument is deeply explored underground, and a complex environment can cause abrasion or dust covering of a detection probe, so that the detection precision is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a low-power high accuracy nuclear-magnetism logging instrument, through with nuclear-magnetism probe swing joint inside a protective sleeve, electric putter output promotes the mounting bracket and makes nuclear-magnetism probe steadily shift out protective sleeve opening and survey during the detection, the cover reinforcing signal source is concentrated to the signal, reduce the interference influence, control electric putter output area returns after the detection is accomplished, the hierarchical contact that carries out different degrees and the overweight clearance of different positions of nuclear-magnetism probe of three doctor-blades of group, and the cooperation brush, can clear up its bottom after nuclear-magnetism probe is accomodate, scrape dust and water stain, totally thoroughly, the protective probe reduces wearing and tearing, be favorable to guaranteeing nuclear-magnetism probe's life and detection precision.
In order to achieve the above object, the utility model provides a following technical scheme: a low-power high-precision nuclear magnetic logging instrument comprises an energy storage pup joint, an electronic circuit pup joint and a nuclear magnetic detection pup joint, wherein the energy storage pup joint and the nuclear magnetic detection pup joint are respectively arranged at the top end and the bottom end of the electronic circuit pup joint;
the telescopic adjusting mechanism comprises a first electric push rod and a mounting frame, the first electric push rod and the nuclear magnetic probe are respectively arranged at the top end and the bottom of the mounting frame, a sliding rail is arranged on the inner wall of the protective sleeve, a roller is arranged on the outer side of the mounting frame, and the roller is matched with the sliding rail;
the cleaning sleeve is characterized in that a friction hole is formed in the inner portion of the cleaning sleeve, a scraping blade is fixedly connected to the inner surface of the friction hole, the friction hole is matched with the nuclear magnetic probe, the scraping blade is made of a rubber material, brushes distributed in an annular mode are fixedly connected to the bottom end of the inner surface of the friction hole, and the brushes are made of a nylon material.
In a preferred embodiment, the energy storage nipple joint and the nuclear magnetic detection nipple joint outside all are equipped with the spout, be equipped with the high elasticity sheetmetal in the spout, high elasticity sheetmetal both ends all are equipped with the slider, slider and spout sliding connection, two fixedly connected with second electric putter between the spout, second electric putter output end fixedly connected with sliding sleeve, two the sliding sleeve respectively with energy storage nipple joint and nuclear magnetic detection nipple joint sliding connection.
In a preferred embodiment, a protective shield is arranged outside the electronic circuit cartridge, the protective shield is made of an aluminum alloy material, and a traction head is fixedly connected to the top end of the energy storage cartridge.
In a preferred embodiment, a groove is formed in the top of the cleaning sleeve, the groove is matched with the protective sleeve, an internal thread is formed in the surface of the groove, an external thread is formed on the outer side of the protective sleeve, and the cleaning sleeve is in threaded connection with the protective sleeve.
In a preferred embodiment, the output end of the first electric push rod is fixedly connected with the mounting frame, the first electric push rod is fixedly connected with the protective sleeve, the number of the slide rails and the number of the rollers are multiple, the rollers are uniformly distributed on the outer side of the protective sleeve, and the rollers are in rolling connection with the protective sleeve.
In a preferred embodiment, the number of the sliding grooves and the number of the high-elasticity metal sheets are respectively set to be multiple, and the multiple high-elasticity metal sheets are uniformly distributed outside the energy storage short section and the nuclear magnetism detection short section.
In a preferred embodiment, the signal concentrating cover is provided in the shape of an inverted pot, and the outside of the signal concentrating cover is coated with a water-based nickel-based electromagnetic shielding paint.
In a preferred embodiment, the number of the scraping blades is three, the number of the scraping blades in each group is four, the four scraping blades are distributed in an annular array, and the areas of the three groups of the scraping blades are sequentially increased from top to bottom in an increasing manner
The utility model discloses a technological effect and advantage:
1. the nuclear magnetic probe is movably connected inside the protective sleeve, the output end of the first electric push rod pushes the mounting frame to enable the nuclear magnetic probe to stably move out of the opening of the protective sleeve for detection during detection, the signal concentration cover enhances a signal source and reduces interference influence, the output end of the first electric push rod is controlled to drive the nuclear magnetic probe to return after detection is completed, the three groups of scraping blades are used for carrying out contact of different degrees and side-weight cleaning of different positions on the nuclear magnetic probe in a grading manner, the bottom end of the nuclear magnetic probe can be cleaned after the nuclear magnetic probe is stored in a matching manner by matching with a hairbrush, dust and water stains are scraped, the nuclear magnetic probe is clean and thorough, the wear of the nuclear magnetic probe;
2. through with the pull-down sliding sleeve of second electric putter output shrink, make the high elasticity sheetmetal receive the oppression and warp, the high elasticity sheetmetal obtains internal stress and elasticity, protect the nuclear-magnetism logging instrument, reach buffering shock attenuation effect when colliding the wall of a well, the deformation volume of adjusting the elasticity sheetmetal through the flexible volume of adjusting the second electric putter output, change the protection length after the elasticity sheetmetal deformation, be convenient for adjust the protection interval to different aperture drilling, set up the protection shade, guarantee the life and the detection precision of device.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a schematic structural view of the cleaning sleeve of the present invention.
Fig. 4 is a top view of the cleaning sleeve of the present invention.
Fig. 5 is a bottom view of the cleaning sleeve of the present invention.
Fig. 6 is a schematic view of the connection structure of the high-elasticity metal sheet and the second electric push rod of the present invention.
Fig. 7 is a diagram of the compression movement trace of the high-elasticity metal sheet of the present invention.
Fig. 8 is an enlarged view of the structure of the portion a of fig. 1 according to the present invention.
The reference signs are: 1 energy storage pup joint, 2 electronic circuit pup joints, 3 nuclear magnetic detection pup joints, 31 protective sleeves, 32 signal concentration covers, 33 nuclear magnetic probes, 4 telescopic adjusting mechanisms, 41 first electric push rods, 42 mounting racks, 43 sliding rails, 44 rollers, 5 cleaning covers, 51 friction holes, 52 scraping blades, 53 grooves, 54 hairbrushes, 6 sliding grooves, 7 high-elasticity metal sheets, 8 sliding blocks, 9 second electric push rods, 10 sliding sleeves, 11 protective covers and 12 traction heads.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.
The utility model provides a low-power high accuracy nuclear magnetic logging instrument as shown in figures 1-8, including energy storage nipple 1, electronic circuit nipple 2 and nuclear magnetic detection nipple 3, energy storage nipple 1 and nuclear magnetic detection nipple 3 set up respectively at the top and the bottom of electronic circuit nipple 2, nuclear magnetic detection nipple 3 includes a protective sleeve 31, the outside of protective sleeve 31 bottom is equipped with signal centralization cover 32, protective sleeve 31 bottom sets up to the opening, protective sleeve 31 inside swing joint nuclear magnetic probe 33, nuclear magnetic probe 33 top is equipped with flexible adjustment mechanism 4, protective sleeve 31 bottom is equipped with clearance cover 5;
the telescopic adjusting mechanism 4 comprises a first electric push rod 41 and an installation frame 42, the first electric push rod 41 and the nuclear magnetic probe 33 are respectively arranged at the top end and the bottom of the installation frame 42, a sliding rail 43 is arranged on the inner wall of the protective sleeve 31, a roller 44 is arranged on the outer side of the installation frame 42, and the roller 44 is matched with the sliding rail 43;
a friction hole 51 is formed in the cleaning sleeve 5, a scraping blade 52 is fixedly connected to the inner surface of the friction hole 51, the friction hole 51 is matched with the nuclear magnetic probe 33, the scraping blade 52 is made of a rubber material, brushes 54 distributed in an annular mode are fixedly connected to the bottom end of the inner surface of the friction hole 51, and the brushes 54 are made of a nylon material;
the number of the scraping blades 52 is three, the number of the scraping blades 52 in each group is four, the four scraping blades 52 are distributed in an annular array, and the areas of the three groups of the scraping blades 52 are sequentially increased from top to bottom;
the top of the cleaning sleeve 5 is provided with a groove 53, the groove 53 is matched with the protective sleeve 31, the surface of the groove 53 is provided with an internal thread, the outer side of the protective sleeve 31 is provided with an external thread, the cleaning sleeve 5 is in threaded connection with the protective sleeve 31, the cleaning sleeve 5 is convenient to replace, and the cleaning effect on the nuclear magnetic probe 33 is ensured;
the output end of the first electric push rod 41 is fixedly connected with the mounting frame 42, the first electric push rod 41 is fixedly connected with the protective sleeve 31, the number of the slide rails 43 and the number of the rollers 44 are multiple, the rollers 44 are uniformly distributed on the outer side of the protective sleeve 31, and the rollers 44 are in rolling connection with the protective sleeve 31;
the signal concentration cover 32 is in a reversed pot shape, and water-based nickel electromagnetic shielding paint is coated on the outer side of the signal concentration cover 32;
the implementation mode is specifically as follows: the nuclear magnetic logging instrument is deeply arranged in a well, the nuclear magnetic probe 33 is arranged in the protective sleeve 31 in the conveying process to prevent the nuclear magnetic probe 33 from being damaged by collision, when detection is needed, the first electric push rod 41 is started, the output end of the first electric push rod 41 pushes the mounting frame 42 to move downwards in the protective sleeve 31, the roller 44 and the sliding rail 43 are matched to enable the nuclear magnetic probe 33 to stably move out of the opening of the protective sleeve 31 to detect in the well, the signal concentration cover 32 concentrates atoms and isolates magnetic field penetration, a signal source is enhanced, interference influence is reduced, detection precision is improved, after the detection is finished, the output end of the first electric push rod 41 is controlled to shrink, the mounting frame 42 drives the nuclear magnetic probe 33 to return, the three groups of scraping blades 52 carry out contact of different degrees and side weight cleaning of different positions on the nuclear magnetic probe 33 in a grading manner, the hair brushes 54 are matched, the bottom end of the nuclear, clean thorough, the protection probe reduces wearing and tearing, is favorable to guaranteeing nuclear magnetic probe 33's life and detection precision.
The energy storage short section 1 and the nuclear magnetic detection short section 3 are respectively provided with a sliding groove 6 at the outer side, a high-elasticity metal sheet 7 is arranged in the sliding groove 6, two ends of the high-elasticity metal sheet 7 are respectively provided with a sliding block 8, the sliding blocks 8 are in sliding connection with the sliding grooves 6, a second electric push rod 9 is fixedly connected between the two sliding grooves 6, the output end of the second electric push rod 9 is fixedly connected with a sliding sleeve 10, and the two sliding sleeves 10 are respectively in sliding connection with the energy storage short section 1 and the nuclear magnetic detection short section 3;
a protective shield 11 is arranged on the outer side of the electronic circuit pup joint 2, the protective shield 11 is made of an aluminum alloy material, and the top end of the energy storage pup joint 1 is fixedly connected with a traction head 12;
the number of the sliding grooves 6 and the number of the high-elasticity metal sheets 7 are multiple, and the multiple high-elasticity metal sheets 7 are uniformly distributed on the outer sides of the energy storage short section 1 and the nuclear magnetic detection short section 3;
the implementation mode is specifically as follows: 7 both ends of high elasticity sheetmetal pass through 8 joints of slider in spout 6, and slide in spout 6, start second electric putter 9, second electric putter 9 output shrink pull-down sliding sleeve 10, it warp to make high elasticity sheetmetal 7 receive the oppression, high elasticity sheetmetal 7 after the deformation possess internal stress and elasticity, can protect the nuclear magnetic logging instrument, reach buffering shock attenuation effect when colliding the wall of a well, the deformation volume of adjusting elasticity sheetmetal 7 through the flexible volume of adjusting the 9 output of second electric putter 9, change the protection length after the deformation of elasticity sheetmetal 7, be convenient for adjust the protection interval to different aperture drilling, set up protection shade 11, prevent that the interior wall dust stone of bore hole from dropping damage device, guarantee the life and the detection precision of device.
The utility model discloses the theory of operation:
referring to the attached drawings 1-8 of the specification, the nuclear magnetic probe 33 is movably connected inside the protective sleeve 31, during detection, the output end of the first electric push rod 41 pushes the mounting frame 42 to enable the nuclear magnetic probe 33 to stably move out of the opening of the protective sleeve 31 for detection, the signal concentration cover 32 enhances a signal source and reduces interference influence, after detection is completed, the output end of the first electric push rod 41 is controlled to drive the nuclear magnetic probe 33 to return, the scraping blades 52 rub the nuclear magnetic probe 33, the three groups of scraping blades 52 perform contact on the nuclear magnetic probe 33 in different degrees and side weight cleaning on different positions in a grading manner, and the bottom end of the nuclear magnetic probe 33 can be cleaned after being stored by being matched with the hairbrush 54, so that dust and water stains are scraped, the nuclear magnetic probe is clean and thorough, the abrasion of the protective;
refer to description attached figure 2, 6 and 7, 9 output shrink pull-down sliding sleeve 10 of second electric putter, make high elasticity sheetmetal 7 receive the oppression deformation, obtain internal stress and elasticity, protect the nuclear-magnetism logging instrument, reach buffering shock attenuation effect when colliding the wall of a well, adjust the deformation volume of elasticity sheetmetal 7 through the flexible volume of adjusting 9 output of second electric putter, change the protection length after the deformation of elasticity sheetmetal 7, be convenient for adjust the protection interval to different apertures drilling, set up protection shade 11, prevent that the wall dust stone of barefoot borehole from dropping damage device, guarantee the life and the detection precision of device.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a low-power high accuracy nuclear magnetic logging instrument, includes energy storage nipple joint (1), electronic circuit nipple joint (2) and nuclear magnetic detection nipple joint (3), its characterized in that: the energy storage pup joint (1) and the nuclear magnetic detection pup joint (3) are respectively arranged at the top end and the bottom end of the electronic circuit pup joint (2), the nuclear magnetic detection pup joint (3) comprises a protective sleeve (31), a signal concentration cover (32) is arranged on the outer side of the bottom of the protective sleeve (31), the bottom of the protective sleeve (31) is provided with an opening, a nuclear magnetic probe (33) is movably connected inside the protective sleeve (31), a telescopic adjusting mechanism (4) is arranged at the top of the nuclear magnetic probe (33), and a cleaning sleeve (5) is arranged at the bottom of the protective sleeve (31);
the telescopic adjusting mechanism (4) comprises a first electric push rod (41) and an installation frame (42), the first electric push rod (41) and the nuclear magnetic probe (33) are respectively arranged at the top end and the bottom of the installation frame (42), a sliding rail (43) is arranged on the inner wall of the protective sleeve (31), a roller (44) is arranged on the outer side of the installation frame (42), and the roller (44) is matched with the sliding rail (43);
the cleaning device is characterized in that a friction hole (51) is formed in the cleaning sleeve (5), a scraping blade (52) is fixedly connected to the inner surface of the friction hole (51), the friction hole (51) is matched with the nuclear magnetic probe (33), the scraping blade (52) is made of rubber materials, brushes (54) distributed in an annular mode are fixedly connected to the bottom end of the inner surface of the friction hole (51), and the brushes (54) are made of nylon materials.
2. A low power high accuracy nuclear magnetic logging tool according to claim 1 wherein: energy storage nipple joint (1) and nuclear magnetic detection nipple joint (3) outside all are equipped with spout (6), be equipped with high elasticity sheetmetal (7) in spout (6), high elasticity sheetmetal (7) both ends all are equipped with slider (8), slider (8) and spout (6) sliding connection, two fixedly connected with second electric putter (9) between spout (6), second electric putter (9) output end fixedly connected with sliding sleeve (10), two sliding sleeve (10) respectively with energy storage nipple joint (1) and nuclear magnetic detection nipple joint (3) sliding connection.
3. A low power high accuracy nuclear magnetic logging tool according to claim 1 wherein: the electronic circuit nipple joint (2) outside is equipped with protection shade (11), protection shade (11) are made by aluminum alloy material, energy storage nipple joint (1) top fixedly connected with traction head (12).
4. A low power high accuracy nuclear magnetic logging tool according to claim 1 wherein: the cleaning sleeve is characterized in that a groove (53) is formed in the top of the cleaning sleeve (5), the groove (53) is matched with the protecting sleeve (31), internal threads are formed in the surface of the groove (53), external threads are formed in the outer side of the protecting sleeve (31), and the cleaning sleeve (5) is in threaded connection with the protecting sleeve (31).
5. A low power high accuracy nuclear magnetic logging tool according to claim 1 wherein: the output end of the first electric push rod (41) is fixedly connected with the mounting frame (42), the first electric push rod (41) is fixedly connected with the protective sleeve (31), the number of the sliding rails (43) and the number of the rollers (44) are all set to be multiple, the rollers (44) are uniformly distributed on the outer side of the protective sleeve (31), and the rollers (44) are in rolling connection with the protective sleeve (31).
6. A low power high accuracy nuclear magnetic logging tool according to claim 2 wherein: the quantity of spout (6) and high elasticity sheetmetal (7) all sets up to a plurality ofly, and is a plurality of high elasticity sheetmetal (7) evenly distributed is in energy storage nipple joint (1) and nuclear magnetic detection nipple joint (3) outside.
7. A low power high accuracy nuclear magnetic logging tool according to claim 1 wherein: the signal concentration cover (32) is arranged in a reversed pot shape, and the outer side of the signal concentration cover (32) is coated with water-based nickel electromagnetic shielding paint.
8. A low power high accuracy nuclear magnetic logging tool according to claim 1 wherein: the number of the scraping blades (52) is three, the number of the scraping blades (52) in each group is four, the four scraping blades (52) are distributed in an annular array, and the areas of the three groups of the scraping blades (52) are sequentially increased from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922321691.6U CN211623395U (en) | 2019-12-23 | 2019-12-23 | Low-power high-precision nuclear magnetic logging instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922321691.6U CN211623395U (en) | 2019-12-23 | 2019-12-23 | Low-power high-precision nuclear magnetic logging instrument |
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| Publication Number | Publication Date |
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| CN211623395U true CN211623395U (en) | 2020-10-02 |
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| CN201922321691.6U Active CN211623395U (en) | 2019-12-23 | 2019-12-23 | Low-power high-precision nuclear magnetic logging instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983338A (en) * | 2021-02-07 | 2021-06-18 | 宁夏振盐鑫盛通工贸有限公司 | Environment-friendly vacuum protection device for oil well operation |
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2019
- 2019-12-23 CN CN201922321691.6U patent/CN211623395U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983338A (en) * | 2021-02-07 | 2021-06-18 | 宁夏振盐鑫盛通工贸有限公司 | Environment-friendly vacuum protection device for oil well operation |
| CN112983338B (en) * | 2021-02-07 | 2022-08-02 | 宁夏振盐鑫盛通工贸有限公司 | Environment-friendly vacuum protection device for oil well operation |
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