CN114753792A - Rope coring well track monitoring device - Google Patents
Rope coring well track monitoring device Download PDFInfo
- Publication number
- CN114753792A CN114753792A CN202210531614.7A CN202210531614A CN114753792A CN 114753792 A CN114753792 A CN 114753792A CN 202210531614 A CN202210531614 A CN 202210531614A CN 114753792 A CN114753792 A CN 114753792A
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- CN
- China
- Prior art keywords
- coring
- section
- inclinometer
- hole
- inclinometer assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 230000005484 gravity Effects 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000005553 drilling Methods 0.000 description 17
- 238000005259 measurement Methods 0.000 description 14
- 239000003245 coal Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
Abstract
The invention discloses a rope coring borehole track monitoring device, which belongs to the technical field of rope coring equipment and comprises a coring outer cylinder, a steel rope, an inclinometer assembly and a positioning device, wherein the positioning device is in threaded fit with the coring outer cylinder, the inclinometer assembly is arranged on the positioning device, the inclinometer assembly is hung in the coring outer cylinder through the steel rope, and the steel rope is connected with traction equipment on the ground.
Description
Technical Field
The invention relates to the technical field of rope coring equipment, in particular to a rope coring borehole track monitoring device.
Background
The well track is an important index for checking the well quality, and in the well drilling construction, the well drilling parameters are optimized and the drilling tool assembly and the well drilling process are adjusted according to the well track monitoring data analysis result so as to realize that the well quality meets the design requirement.
In recent years, with the vigorous development of coal bed gas projects, the coal bed gas drilling business volume is on the rise, the coal bed gas drilling construction is also on the standardization, and the well bore quality relates to a series of major production problems such as later-stage drainage and production scale, so that the coal bed gas drilling construction method is an important basic parameter in coal bed gas exploration and development. The coal bed gas drilling is different from the petroleum drilling, and requires that a coal core is lifted out of a shaft within a specified time, and canning and sealing are carried out to desorb the gas production condition of the coal core, so that real and accurate coal bed gas content data are obtained and serve as one of important bases for later development and deployment. Therefore, the rope coring technology is widely applied to the coal bed gas drilling construction.
The operating principle of the rope coring belongs to a double-pipe single-action coring tool, a putting mode is used for an inner coring barrel before coring drilling, the inner diameter of a drill rod column enters a shaft bottom inner coring barrel, the putting position of the inner coring barrel is limited by a seat ring, when the inner coring barrel is seated into the seat ring of the outer coring barrel, a snap spring mechanism of the inner coring barrel is popped up, the inner coring barrel does not move upwards under the thrust of the core, a certain gap is reserved between a core inlet of the inner coring barrel and a core bit of the outer barrel, the outer barrel rotates along with the drill bit in the coring drilling process, the inner coring barrel does not rotate and keeps axial movement with a stratum core, the core smoothly enters the inner coring barrel during coring drilling, and the core integrity is not washed by drilling fluid.
In the single-point inclination measurement process, an inclinometer is connected with a steel cable, the instrument is lowered to the bottom of a well through the inner diameter of a drill rod by a winch for measurement, and the inclination measurement instrument is lifted out of a well mouth to read a measurement result after the measurement result is obtained. The single-point inclination measurement is carried out under the condition that the inner core barrel is arranged in the drilling tool, the inner core barrel salvaging mechanism is easily damaged in the descending process of an inclination measuring instrument, the inner core barrel salvaging fault is caused, a rock core cannot be put out of a shaft in time, stratum data are inaccurate, gas content desorption data are distorted, and the drilling significance is lost. The inclination measurement instrument directly enters a shaft bottom to contact a stratum through the coring outer cylinder, an inclination measurement instrument string placed in a softer stratum is easily embedded into the stratum, the inclination measurement instrument cannot be smoothly put forward, and even if a cutting steel cable is forcibly pulled out, the inclination measurement instrument can be left at the shaft bottom, so that serious well accidents are caused.
The Chinese patent with publication number CN1049542A discloses a rope core drill, and the technical scheme of the invention is as follows: according to the principle that when a hollow cylindrical elastic body is axially compressed and deformed, if the diameter deformation is the same, the axial pressure is in inverse proportion to the axial length of the deformed part of the elastic body, a longer elastic body and a sleeve with the inner diameter slightly larger than the outer diameter of the elastic body are used, the position of the sleeve is adjusted, the elastic body is partially led into the sleeve or completely led out of the sleeve, so that the length of a free surface of the elastic body capable of generating radial deformation is adjusted, and therefore the required pressure is changed, and the adjustment of the blocking alarm pressure of the rock core is achieved.
Disclosure of Invention
To above-mentioned technical problem, a rope coring well track monitoring devices includes: the core taking outer barrel is formed by connecting four sections of steel pipes, the axis direction of the core taking outer barrel is the gravity direction in a working state, and the outer barrel seat ring is connected with the inner wall of the core taking outer barrel through threads; the inclinometer assembly and the coring outer barrel are coaxial, the inclinometer assembly is formed by connecting four sections of rods, the upper end face of the uppermost section of the inclinometer assembly is connected with a steel cable, and a positioning tray is fixedly arranged on the outer surface of the third section of rod in the gravity direction.
Furthermore, it is threaded connection to get core urceolus four sections steel pipe junction, get core urceolus and be connected with the work drill bit along the fourth section steel pipe below of direction of gravity.
Furthermore, the connection part of the second section and the third section of the coring outer cylinder along the gravity direction is connected with the outer cylinder seat ring through threads.
Furthermore, four sections of rods of the inclinometer assembly are connected through threads.
Furthermore, a rectangular groove is formed in the outer surface of the second section of the rod in the gravity direction of the inclinometer assembly, an inclinometer is arranged in the rectangular groove of the inclinometer assembly, a hole is formed in the outer surface of the third section of the rod in the gravity direction of the inclinometer assembly, water channels are formed in the third section of the rod and the fourth section of the rod in the gravity direction of the inclinometer assembly, and the lower end of the outer surface of the fourth section of the rod in the gravity direction of the inclinometer assembly is wedge-shaped.
Furthermore, the inclinometer assembly is coaxial with the coring outer barrel along a water channel in the third interior of the gravity direction, a hole of the inclinometer assembly is communicated with the water channel, and the hole of the inclinometer assembly is positioned above the positioning tray.
Further, urceolus seat ring upside be provided with the 8 inclined planes of coring urceolus, urceolus seat ring be provided with the through-hole, urceolus seat ring through-hole with get the coaxial axle center of urceolus, urceolus seat ring through-hole diameter be greater than the diameter of the third section pole and the fourth section pole of inclinometer assembly along the direction of gravity.
Furthermore, the downside of location tray also be provided with the inclined plane, the inclined angle on location tray downside inclined plane the same with the inclined angle on urceolus seat ring inclined plane, the location tray be provided with the through-hole, location tray through-hole and urceolus seat ring through-hole coaxial, inclinometer assembly fixed mounting in location tray through-hole.
Furthermore, the material used by the second section of rod of the inclinometer assembly along the gravity direction is non-magnetic material.
Compared with the prior art, the invention has the beneficial effects that: (1) the problem that the inclination measurement cannot be carried out in the continuous core taking process in the huge thick coal seam is solved; (2) the occurrence of shaft accidents caused by the fact that the inclinometer directly falls into the bottom of the well in the inclination measurement process is avoided; (3) a diversion water channel is arranged at the joint of the upper part of the guide shoe of the inclination measuring rod piece and the positioning tray, and under special conditions, the inner circulation of a shaft is established through the diversion water channel; (4) if complex conditions in the well occur in the inclination measuring process, the inclination measuring instrument cannot be lifted out of the well bottom in time, the connecting steel cable can be cut off, the upper drill rod can be recycled as soon as possible, after the complex conditions are relieved, the inclination measuring instrument can be lifted to the ground along with the drilling tool after the drill is tripped, and accidents in the well caused by the instrument left over can be avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of a portion B in fig. 1.
Fig. 4 is a partially enlarged view of C in fig. 1.
FIG. 5 is a schematic view of the connection between the inclinometer assembly and the positioning device of the present invention.
Reference numerals: 1-coring the outer cylinder; 2-a steel cord; 3-an inclinometer assembly; 4-a positioning device; 301-a suspension head; 302-instrument cartridge; 303-weight bar; 304-a guide rod; 401-positioning a tray; 402-outer barrel seating ring.
Detailed Description
The technical solution of the present invention is further described below by way of specific embodiments.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in figure 1: positioner 4 and coring urceolus 1 and constitute screw-thread fit, inclinometer assembly 3 install on positioner 4, hang inclinometer assembly 3 through cable wire 2 and put into coring urceolus 1 in, cable wire 2 be connected with subaerial traction equipment.
As shown in the attached figures 1 to 5: the inclinometer assembly 3 is provided with a suspension head 301, an instrument bin 302, a weighting rod 303 and a shoe guide rod 304, the two adjacent ends are connected through threads, the suspension head 301, the instrument bin 302, the weighting rod 303 and the shoe guide rod 304 are coaxial, the instrument bin 302 and the coring outer barrel 1 are coaxial, the coring outer barrel 1 is formed by connecting four sections of steel pipes, the connection part between each group of adjacent steel pipes of the coring outer barrel 1 is in threaded connection, and the steel pipe at the lowest part is connected with a working drill bit.
As shown in figures 1, 2 and 5: hang first 301 upper end fixedly connected with cable wire 2, instrument storehouse 302 surface is provided with the rectangle hole, install the inclinometer in the rectangle hole, instrument storehouse 302 adopts no magnetic material, instrument storehouse 302 rectangle hole lower extreme face and the distance that hangs first 301 upper surface are positioner 45m, the surface of weighting rod 303 is provided with circular hole, weighting rod 303 and the inside water course that is provided with of guide shoe pole 304, the hole and the water course intercommunication of weighting rod 303, the hole of weighting rod 303 surface is located the positioning tray 401 top, positioning tray 401 is provided with the through-hole, fixed mounting has weighting rod 303 in the positioning tray 401 through-hole, the outer surface lower extreme of guide shoe pole 304 is the wedge.
As shown in the attached figures 1 and 2: the connection part of the second section and the third section of the coring outer barrel 1 in the gravity direction is connected with an outer barrel seat ring 402 through threads, the upper side of the outer barrel seat ring 402 is provided with an inclined plane of the coring outer barrel with an angle of 18 degrees, the outer barrel seat ring 402 is provided with a through hole, the through hole of the outer barrel seat ring 402 is coaxial with the coring outer barrel 1, the diameter of the through hole of the outer barrel seat ring 402 is larger than the diameter of the guide shoe rod 304, the lower side of the positioning tray 401 is also provided with an inclined plane, the inclined angle of the inclined plane of the lower side of the positioning tray 401 is the same as that of the inclined plane of the outer barrel seat ring 402, and the through hole of the positioning tray 401 is coaxial with the through hole of the outer barrel seat ring 402.
The working principle is as follows: the inclinometer assembly 3 is placed into the coring outer cylinder 1 through the steel cable 2 in the gap of the rope coring process, when the inclined surface of the lower end of the guide rod 304 contacts the inclined surface above the outer cylindrical seat ring 402, the guide rod 304 slides along the inclined surface of the outer cylindrical seat ring 402 and then falls into the through hole of the outer cylindrical seat ring 402, when the positioning tray 401 is placed a certain distance, the lower inclined surface of the positioning tray is contacted with the upper inclined surface of the outer cylinder seat ring 402, at this time, the outer cylindrical ring 402 clamps the positioning tray 401, and then the inclinometer in the rectangular hole of the instrument cartridge 302 starts to work, thereby realizing the function of inclination measurement, avoiding accidents caused by the fact that the inclinometer falls into the well bottom when being directly put into the well, avoiding the problems that coring and inclination measurement cannot be carried out when complex conditions occur at the well bottom, the steel cable 2 is directly cut off, and the coring outer cylinder 1 and the inclinometer assembly 3 are simultaneously taken out when the complex condition of the well bottom is eliminated, so that the accident caused by the fact that the inclinometer falls into the well bottom due to the complex condition of the well bottom is prevented.
Claims (9)
1. A wireline coring wellbore trajectory monitoring device, comprising: get core urceolus (1), cable wire (2), its characterized in that still includes: the core taking outer barrel comprises an outer barrel seat ring (402) and an inclinometer assembly (3), wherein the core taking outer barrel (1) is formed by connecting four sections of steel pipes, the axis direction of the core taking outer barrel (1) is the gravity direction in the working state, and the outer barrel seat ring (402) is in threaded connection with the inner wall of the core taking outer barrel (1); inclinometer assembly (3) and coring urceolus (1) coaxial axle center, inclinometer assembly (3) form by four sections pole connection, inclinometer assembly (3) one section up end of top be connected with cable wire (2), inclinometer assembly (3) along the third section pole external surface fixed mounting of direction of gravity have location tray (401).
2. The wireline coring wellbore trajectory monitoring device of claim 1, wherein: the four-section steel pipe joint of coring urceolus (1) is threaded connection, coring urceolus (1) be connected with the work drill bit along the fourth section steel pipe below of direction of gravity.
3. The wireline coring wellbore trajectory monitoring device of claim 2, wherein: the connecting part of the second section and the third section of the coring outer cylinder (1) along the gravity direction is connected with an outer cylinder seat ring (402) through threads.
4. The wireline coring wellbore trajectory monitoring device of claim 1, wherein: the four sections of rods of the inclinometer assembly (3) are connected through threads.
5. The wireline coring wellbore trajectory monitoring device of claim 4, wherein: the inclinometer assembly (3) is provided with a rectangular groove along the outer surface of the second section of rod in the gravity direction, an inclinometer is arranged in the rectangular groove of the inclinometer assembly (3), a hole is formed in the outer surface of the third section of rod in the gravity direction of the inclinometer assembly (3), water channels are arranged in the third section of rod and the fourth section of rod in the gravity direction of the inclinometer assembly (3), and the lower end of the outer surface of the fourth section of rod in the gravity direction of the inclinometer assembly (3) is wedge-shaped.
6. The wireline coring wellbore trajectory monitoring device of claim 5, wherein: inclinometer assembly (3) along the third inside water course of direction of gravity with core urceolus (1) coaxial, the hole and the water course switch-on of inclinometer assembly (3), the hole of inclinometer assembly (3) be located location tray (401) top.
7. The wireline coring wellbore trajectory monitoring device of claim 1, wherein: outer barrel seat ring (402) upside be provided with and get the 8 inclined planes of core urceolus (1), outer barrel seat ring (402) be provided with the through-hole, outer barrel seat ring (402) through-hole with get core urceolus (1) with the axle center, outer barrel seat ring (402) through-hole diameter be greater than inclinometer assembly (3) along the diameter of the third section pole and the fourth section pole of direction of gravity.
8. The wireline coring wellbore trajectory monitoring device of claim 7, wherein: location tray (401) downside also be provided with the inclined plane, the inclined angle on location tray (401) downside inclined plane the same with the inclined angle on urceolus seat ring (402) inclined plane, location tray (401) be provided with the through-hole, location tray (401) through-hole and urceolus seat ring (402) through-hole coaxial center, inclinometer assembly (3) fixed mounting in location tray (401) through-hole.
9. The wireline coring wellbore trajectory monitoring device of claim 5, wherein: the material used by the second section of rod of the inclinometer assembly (3) along the gravity direction is non-magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210531614.7A CN114753792A (en) | 2022-05-17 | 2022-05-17 | Rope coring well track monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210531614.7A CN114753792A (en) | 2022-05-17 | 2022-05-17 | Rope coring well track monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114753792A true CN114753792A (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210531614.7A Pending CN114753792A (en) | 2022-05-17 | 2022-05-17 | Rope coring well track monitoring device |
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| CN (1) | CN114753792A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090078467A1 (en) * | 2007-09-25 | 2009-03-26 | Baker Hughes Incorporated | Apparatus and Methods For Continuous Coring |
| CN101672170A (en) * | 2009-09-01 | 2010-03-17 | 中国地质大学（北京） | Novel electronic directional corer |
| CN101709625A (en) * | 2009-10-28 | 2010-05-19 | 华北有色工程勘察院有限公司 | Vertical drilling scopperil eccentric slope-correcting method |
| US20150136388A1 (en) * | 2013-09-30 | 2015-05-21 | 1464684 Alberta Limited O/A Integrity Insitu | In-situ rock testing tool |
| CN208845167U (en) * | 2018-09-12 | 2019-05-10 | 四川省地质工程勘察院 | A kind of inclinometer reconnoitred for creep deformation stage sliding surface |
| CN209277837U (en) * | 2018-12-19 | 2019-08-20 | 长安大学 | A kind of flexible cable inclinometer detector fishing device based on low-resistance |
| CN111364976A (en) * | 2020-04-02 | 2020-07-03 | 中国铁建重工集团股份有限公司 | Horizontal core drill inclined plane drill bit position recognition device and system |
-
2022
- 2022-05-17 CN CN202210531614.7A patent/CN114753792A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090078467A1 (en) * | 2007-09-25 | 2009-03-26 | Baker Hughes Incorporated | Apparatus and Methods For Continuous Coring |
| CN101672170A (en) * | 2009-09-01 | 2010-03-17 | 中国地质大学（北京） | Novel electronic directional corer |
| CN101709625A (en) * | 2009-10-28 | 2010-05-19 | 华北有色工程勘察院有限公司 | Vertical drilling scopperil eccentric slope-correcting method |
| US20150136388A1 (en) * | 2013-09-30 | 2015-05-21 | 1464684 Alberta Limited O/A Integrity Insitu | In-situ rock testing tool |
| CN208845167U (en) * | 2018-09-12 | 2019-05-10 | 四川省地质工程勘察院 | A kind of inclinometer reconnoitred for creep deformation stage sliding surface |
| CN209277837U (en) * | 2018-12-19 | 2019-08-20 | 长安大学 | A kind of flexible cable inclinometer detector fishing device based on low-resistance |
| CN111364976A (en) * | 2020-04-02 | 2020-07-03 | 中国铁建重工集团股份有限公司 | Horizontal core drill inclined plane drill bit position recognition device and system |
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