CN111219172B - Tubular column positioning device for hydraulic jet drilling - Google Patents
Tubular column positioning device for hydraulic jet drilling Download PDFInfo
- Publication number
- CN111219172B CN111219172B CN201811416026.9A CN201811416026A CN111219172B CN 111219172 B CN111219172 B CN 111219172B CN 201811416026 A CN201811416026 A CN 201811416026A CN 111219172 B CN111219172 B CN 111219172B
- Authority
- CN
- China
- Prior art keywords
- positioning
- casing
- string
- hydraulic jet
- jet drilling
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 62
- 230000008878 coupling Effects 0.000 claims abstract description 36
- 238000010168 coupling process Methods 0.000 claims abstract description 36
- 238000005859 coupling reaction Methods 0.000 claims abstract description 36
- 239000003129 oil well Substances 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/119—Details, e.g. for locating perforating place or direction
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a tubular column positioning device for hydraulic jet drilling, which comprises a hydraulic jet drilling tubular column positioner and a casing windowing tubular column positioning coupling; the hydraulic jet drilling string positioner comprises a string positioning load body connected to a hydraulic jet drilling string, wherein a plurality of strip-shaped grooves axially parallel to the string positioning load body are formed in the outer wall of the string positioning load body along the circumferential direction of the string positioning load body, and positioning load elastic sheets are arranged in the grooves; the upper end and the lower end of the casing windowing pipe column positioning coupling are fixedly connected with a casing windowing pipe column; when the positioning device is put into a well or lifted out of the well, the positioning load elastic sheet can generate load change only when passing through the positioning coupling and can smoothly pass through other positions in the well, so that the collision damage phenomenon caused by the fact that the conventional positioning device passes through the casing pipe column coupling every time is avoided, and the reliability and the positioning effect of the positioning device are improved; the device has novel design, simple structure and convenient and reliable field construction operation.
Description
Technical Field
The invention relates to petroleum and natural gas drilling equipment, in particular to a tubular column positioning device for hydraulic jet drilling.
Background
At present, the hydraulic jet directional drilling technology is increasingly applied to the field of low-permeability oilfield development as a new yield increasing process, such as: geological exploration, oil well production increase, improvement of steam injection and water injection effects and the like. The technology can directly and effectively communicate the far-end cracks of the reservoir, improve the permeability of the production interval, make residual oil between wells used and realize yield and efficiency increase.
In the hydraulic jet drilling, reservoirs in intervals with specific depths need to be communicated, and a device capable of positioning the lowering depth of a hydraulic jet drilling pipe column is needed, so that effective communication of the specific reservoirs is realized, and yield and efficiency increase are realized. In the prior art, an arc spring piece, a common spring or a Z-shaped spring and the like are mostly adopted, a positioning block is popped up through the elasticity of the spring or the spring piece, when a to-be-positioned device is put into the position near a target layer, a pipe column is lifted upwards, and the change of the hanging weight of the pipe column at a wellhead is observed, so that the positioning is completed. Due to the poor stability and the self-expansion characteristic of the arc-shaped spring piece, the common spring or the Z-shaped spring, the target layer is poor in positioning effect and difficult to install. In addition, prior art adopts arc, Z shape spring, and this kind of spring action is in the locating piece all the time, and the locating piece is in pop-up state, can relapse compress and stretch out when going into the in-process through the coupling under, and the locating piece will produce a shearing action, can reduce positioner's reliability, simultaneously, because place in the locating piece in the spring, be the point contact with the recess of locating piece, the equilibrium is poor, and the atress is inhomogeneous, influences the change of hanging oneself to positioning effect is not good.
Therefore, the inventor provides a pipe column positioning device for hydraulic jet drilling by virtue of experience and practice of related industries for many years so as to overcome the defects in the prior art.
Disclosure of Invention
The invention aims to provide a tubular column positioning device for hydraulic jet drilling, which overcomes the defects in the prior art, improves the reliability and the positioning effect of the positioning device and realizes drilling of a reservoir stratum with a specific target interval.
The invention also aims to provide a tubular column positioning device for hydraulic jet drilling, which has a simple structure and is convenient to construct and operate on site.
The invention aims to realize the purpose, and the tubular column positioning device for hydraulic jet drilling comprises a hydraulic jet drilling tubular column positioner and a casing windowing tubular column positioning coupling;
the hydraulic jet drilling string positioner comprises a string positioning load body connected to a hydraulic jet drilling string, the string positioning load body is of a tubular structure, the upper end and the lower end of the string positioning load body are fixedly connected with the hydraulic jet drilling string, the outer wall of the string positioning load body is provided with a plurality of strip-shaped grooves which are axially parallel to the string positioning load body along the circumferential direction, and positioning load elastic sheets are arranged in the grooves; the positioning load elastic sheet is a strip-shaped elastic sheet matched with the strip-shaped groove in shape, the thickness of the strip-shaped elastic sheet is smaller than the depth of the strip-shaped groove, two ends of the strip-shaped elastic sheet are fixed in the strip-shaped groove, the outer wall of the strip-shaped elastic sheet is flush with the outer wall of the tubular column positioning load body, an outer convex part is integrally formed in the middle of the outer wall of the strip-shaped elastic sheet, and a first inclined plane gradually reduced from the bottom of the outer convex part to the top of the outer convex part is formed at the upper end and the lower end of the outer convex part;
the casing windowing pipe column positioning coupling is also of a tubular structure, and the upper end and the lower end of the casing windowing pipe column positioning coupling are fixedly connected with a casing windowing pipe column; the casing windowing pipe column is arranged on the inner side of an oil well casing, a plurality of through holes are formed in the pipe wall of the casing windowing pipe column and are positioned below the casing windowing pipe column positioning coupling, and the hydraulic jet drilling pipe column penetrates through the casing windowing pipe column; the inner diameter of the casing windowing pipe column positioning coupling is larger than the outer diameter of the pipe column positioning load body; the middle part of the inner wall of the casing windowing pipe column positioning coupling is provided with an annular flange which is arranged in an inward protruding mode, and the upper end and the lower end of the annular flange form a second inclined plane which is gradually reduced from the bottom of the annular flange to the top of the annular flange; the outer convex part and the annular flange are provided with an overlapping part in the radial direction, and the thickness of the overlapping part is smaller than the distance between the inner wall of the strip-shaped elastic sheet and the bottom of the strip-shaped groove.
In a preferred embodiment of the present invention, an acute angle included between each of the first inclined surface and the second inclined surface and an axial direction of the pipe column positioning load body is referred to as an inclined surface included angle, and a first inclined surface included angle at a lower end of the outer convex portion is the same as a second inclined surface included angle at an upper end of the annular flange and is referred to as a lowering included angle; the included angle of the first inclined plane at the upper end of the outer convex part is the same as the included angle of the second inclined plane at the lower end of the annular flange and is called as a lifting included angle; the downward-placing included angle is larger than the upward-lifting included angle.
In a preferred embodiment of the present invention, two ends of the elongated resilient piece are fixed in the elongated groove by fixing screws.
In a preferred embodiment of the invention, a casing windowing string locating collar is installed at a predetermined location on the casing windowing string.
In a preferred embodiment of the invention, the upper end and the lower end of the casing windowing pipe column positioning coupling are both provided with casing threads, and the casing windowing pipe column positioning coupling is fixedly connected with the casing windowing pipe column through the casing threads; the upper end and the lower end of the tubular column positioning load body are both provided with oil pipe threads, and the tubular column positioning load body is fixedly connected with the hydraulic jet drilling tubular column through the oil pipe threads.
According to the tubular column positioning device for hydraulic jet drilling, when the tubular column positioning device is put into a well and lifted out of the well, the positioning load elastic sheet can generate load change only when passing through the positioning coupling, and can smoothly pass through other positions in the well, so that the collision damage phenomenon generated when the positioning device passes through the casing tubular column coupling each time in the prior art is avoided, and the reliability and the positioning effect of the positioning device are improved; the device has novel design, simple structure and convenient and reliable field construction operation, and meets the field construction process.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1: the invention is a schematic view of the installation structure of the tubular column positioning device for hydraulic jet drilling.
FIG. 2: the invention is a schematic sectional structure diagram of the tubular column positioning device for hydraulic jet drilling.
FIG. 3 is a schematic structural view of a casing windowing string positioning collar of the present invention.
FIG. 4 is a schematic structural view of the pipe column positioning load body according to the present invention.
FIG. 5 is a schematic view of the structure of the positioning load spring of the present invention.
Reference numerals:
100. a pipe column positioning device for hydraulic jet drilling;
1. a hydraulic jet drilling string positioner;
11. the pipe column positions the load body;
111. a groove;
12. positioning a load spring;
121. an outer convex portion;
1211. a first inclined plane;
13. a set screw;
2. a casing windowing pipe column positioning coupling;
21. an annular flange;
211. a second inclined plane;
7. a hydraulic jet drilling string;
8. a casing windowing tubular column;
9. an oil well casing;
t, the thickness of the overlapping portion;
and s, the distance between the inner wall of the strip-shaped elastic sheet and the bottom of the strip-shaped groove.
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.
Unless otherwise indicated, all references to up and down directions herein are to the same extent as the references to up and down directions in FIG. 2 shown in the present application and described herein.
As shown in fig. 1 to 5, the present invention provides a pipe column positioning device 100 for hydraulic jet drilling, which comprises a hydraulic jet drilling pipe column positioner 1 and a casing windowing pipe column positioning coupling 2;
the hydraulic jet drilling string positioner 1 comprises a string positioning load body 11 connected to a hydraulic jet drilling string 7, the string positioning load body 11 is of a tubular structure, oil pipe threads, namely pipe threads (internal threads) for connecting an oil pipe, are arranged at the upper end and the lower end of the string positioning load body 11, and the string positioning load body 11 is fixedly connected with the hydraulic jet drilling string 7 through the oil pipe threads; the outer wall of the tubular column positioning load body 11 is provided with a plurality of strip-shaped grooves 111 which are arranged in parallel with the axial direction of the tubular column positioning load body 11 along the circumferential direction, and the specific number of the grooves 111 can be determined according to actual needs, for example: may be three or four; a positioning load spring 12 is arranged in the groove 111; the positioning load elastic sheet 12 is a strip-shaped elastic sheet matched with the strip-shaped groove 111 in shape, the thickness of the strip-shaped elastic sheet is smaller than the depth of the strip-shaped groove 111, two ends of the strip-shaped elastic sheet are fixed in the strip-shaped groove 111 through fixing screws 13, and meanwhile, in order to guarantee reliability, the positioning load elastic sheet can be fixed by welding after being connected through the screws; the outer wall of the strip-shaped elastic sheet is flush with the outer wall of the tubular column positioning load body 11, an outer convex part 121 is integrally formed in the middle of the outer wall of the strip-shaped elastic sheet, and a first inclined plane 1211 gradually reduced from the bottom of the outer convex part 121 to the top of the outer convex part 121 is formed at the upper end and the lower end of the outer convex part 121;
the casing windowing pipe column positioning coupling 2 is also of a tubular structure, casing threads, namely pipe threads (also internal threads) for connecting a casing, are arranged at the upper end and the lower end of the casing windowing pipe column positioning coupling 2, and the casing windowing pipe column positioning coupling 2 is fixedly connected with a casing windowing pipe column 8 through the casing threads; the casing windowing pipe column 8 is arranged on the inner side of an oil well casing 9, a plurality of through holes (not shown in the figure) are formed in the pipe wall of the casing windowing pipe column 8 and are positioned below the casing windowing pipe column positioning coupling 2, and the hydraulic jet drilling pipe column 7 penetrates through the casing windowing pipe column 8; the inner diameter of the casing windowing pipe column positioning coupling 2 is larger than the outer diameter of the pipe column positioning load body 11; an annular flange 21 which is arranged in an inward protruding mode is arranged in the middle of the inner wall of the casing windowing pipe column positioning coupling 2, and a second inclined plane 211 which is gradually reduced from the bottom of the annular flange 21 to the top of the annular flange 21 is formed at the upper end and the lower end of the annular flange 21; the outer convex part 121 and the annular flange 21 have an overlapping part in the radial direction, and the thickness t of the overlapping part is smaller than the distance s between the inner wall of the strip-shaped elastic sheet and the bottom of the strip-shaped groove.
In the hydraulic jet drilling pipe column positioning device 100, a casing windowing pipe column positioning coupling (hereinafter referred to as positioning coupling) 2 is arranged on a casing windowing pipe column 8 in operation; a pipe column positioning load body (hereinafter referred to as positioning load body) 11, a positioning load elastic sheet 12 and a fixing screw 13 are arranged on the hydraulic jet drilling pipe column 7; when the hydraulic jet drilling pipe column 7 is put into the underground, when the positioning load elastic sheet 12 passes through the annular flange 21 of the inner drift diameter of the positioning coupling, the pipe column load can be changed, at the moment, the load display device of the ground pipe column can display the load change of the whole pipe column, so that whether the drilling pipe column reaches a required drilling target layer or not can be determined, the positioning of the drilling pipe column is realized, and the drilling requirement on a specific target layer is met. According to the construction requirements of a specific oil well, drilling a specific interval is required, as shown in fig. 1, a positioning coupling is arranged at a specific position (a preset depth position) of a casing windowing pipe column 8 in advance according to the construction requirements; the hydraulic jet drilling process has high requirements on the position accuracy of the drilled hole, and the underground well condition of thousands of meters is complex, so that a designer needs to strictly control the position; the positioning collar is pre-installed according to design construction requirements. The different design angles of the inclined planes at the upper end and the lower end of the annular flange 21 of the inner diameter of the positioning collar and the outer convex part 121 at the middle of the positioning load spring plate 12 correspond to different load changes. In the design, the design angles of the second inclined planes 211 at the upper end and the lower end of the positioning collar inner drift diameter annular flange 21 are different, the radial thickness of the annular flange 21 has design requirements, the angles of the first inclined planes 1211 at the upper end and the lower end of the corresponding outer convex part 121 in the middle of the positioning load spring plate 12 are also different, and the radial thickness of the outer convex part 121 also has design requirements. Specifically, an acute angle between each of the first inclined surface 1211 and the second inclined surface 211 and the axial direction of the column positioning load body 11 is referred to as an inclined surface included angle, and an included angle between the first inclined surface 1211 at the lower end of the outer convex portion 121 and the second inclined surface 211 at the upper end of the annular flange 21 is the same and is referred to as a lowering included angle; the included angle between the first inclined surface 1211 at the upper end of the outer convex part 121 and the second inclined surface 211 at the lower end of the annular flange 21 is the same and is called as a lifting included angle; the downward-placing included angle is larger than the upward-lifting included angle; that is, the inclination of the first inclined plane and the second inclined plane which are contacted with each other during lowering is steeper, and the inclination of the first inclined plane and the second inclined plane which are contacted with each other during lifting is gentler, so that the first inclined plane and the second inclined plane are contacted with each other during lowering and the second inclined plane are contacted with each other during lifting, so that the first inclined plane and the second inclined plane are contacted with each other during lowering and the second inclined plane are less. In addition, the tubular column positioning device for hydraulic jet drilling is only used for realizing the position positioning of the drilling tubular column, and the drilling tubular column is fixed by other fixing devices instead of a structure between a positioning load elastic sheet and an inner drift diameter annular flange.
Further, in the present embodiment, the pipe column positioning requirements of different dimensions can be satisfied by changing the dimensions of the positioning collar and the dimensions of the inner diameter annular flange.
In the present embodiment, since the plurality of through holes (not shown) are provided on the wall of the casing windowing pipe string 8 and below the casing windowing pipe string positioning collar 2, the casing windowing pipe string 8 does not need to be lifted out of the oil well after the hydraulic jet drilling pipe string 7 is positioned, and the casing windowing pipe string 8 does not affect the drilling operation.
In the invention, because the lowering included angle is larger than the lifting included angle, the load of the tubular column can be obviously displayed when the hydraulic jet drilling tubular column is lowered into the well, the change value of the load during lifting is slightly smaller than that during lowering, and meanwhile, when the drilling tubular column needs to be lifted, the drilling tubular column can easily and conveniently pass through the positioning coupling, thereby meeting the requirements of site construction. In addition, the thickness, the width and the length of the positioning load elastic sheet and the angle parameters of the inclined planes at the two ends of the outer convex part are controlled, so that different ground tubular column load display results can be obtained.
According to the tubular column positioning device for hydraulic jet drilling, when the tubular column positioning device is put into a well and lifted out of the well, the positioning load elastic sheet can generate load change only when passing through the positioning coupling, and can smoothly pass through other positions in the well, so that the collision damage phenomenon generated when the positioning device passes through the casing tubular column coupling each time in the prior art is avoided, and the reliability and the positioning effect of the positioning device are improved; the device has novel design, simple structure and convenient and reliable field construction operation, and meets the field construction process.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.
Claims (5)
1. A tubular column positioning device for hydraulic jet drilling is characterized by comprising a hydraulic jet drilling tubular column positioner and a casing windowing tubular column positioning coupling;
the hydraulic jet drilling string positioner comprises a string positioning load body connected to a hydraulic jet drilling string, the string positioning load body is of a tubular structure, the upper end and the lower end of the string positioning load body are fixedly connected with the hydraulic jet drilling string, the outer wall of the string positioning load body is provided with a plurality of strip-shaped grooves which are axially parallel to the string positioning load body along the circumferential direction, and positioning load elastic sheets are arranged in the grooves; the positioning load elastic sheet is a strip-shaped elastic sheet matched with the strip-shaped groove in shape, the thickness of the strip-shaped elastic sheet is smaller than the depth of the strip-shaped groove, two ends of the strip-shaped elastic sheet are fixed in the strip-shaped groove, the outer wall of the strip-shaped elastic sheet is flush with the outer wall of the tubular column positioning load body, an outer convex part is integrally formed in the middle of the outer wall of the strip-shaped elastic sheet, and a first inclined plane gradually reduced from the bottom of the outer convex part to the top of the outer convex part is formed at the upper end and the lower end of the outer convex part;
the casing windowing pipe column positioning coupling is also of a tubular structure, and the upper end and the lower end of the casing windowing pipe column positioning coupling are fixedly connected with a casing windowing pipe column; the casing windowing pipe column is arranged on the inner side of an oil well casing, a plurality of through holes are formed in the pipe wall of the casing windowing pipe column and are positioned below the casing windowing pipe column positioning coupling, and the hydraulic jet drilling pipe column penetrates through the casing windowing pipe column; the inner diameter of the casing windowing pipe column positioning coupling is larger than the outer diameter of the pipe column positioning load body; the middle part of the inner wall of the casing windowing pipe column positioning coupling is provided with an annular flange which is arranged in an inward protruding mode, and the upper end and the lower end of the annular flange form a second inclined plane which is gradually reduced from the bottom of the annular flange to the top of the annular flange; the outer convex part and the annular flange are provided with an overlapping part in the radial direction, and the thickness of the overlapping part is smaller than the distance between the inner wall of the strip-shaped elastic sheet and the bottom of the strip-shaped groove.
2. The tubular column positioning device for hydraulic jet drilling according to claim 1, wherein an acute angle between each of the first inclined surface and the second inclined surface and an axial direction of the tubular column positioning load body is referred to as an inclined surface included angle, and a first inclined surface included angle at a lower end of the outer convex portion is the same as a second inclined surface included angle at an upper end of the annular flange and is referred to as a lowering included angle; the included angle of the first inclined plane at the upper end of the outer convex part is the same as the included angle of the second inclined plane at the lower end of the annular flange and is called as a lifting included angle; the downward-placing included angle is larger than the upward-lifting included angle.
3. The hydraulic jet drilling string positioning device as recited in claim 2, wherein the two ends of the elongated resilient piece are fixed in the elongated groove by fixing screws.
4. The apparatus of claim 2, wherein the collar is mounted to the casing at a predetermined location.
5. The tubular column positioning device for water jet drilling according to claim 2, wherein the upper end and the lower end of the casing windowing tubular column positioning collar are both provided with casing threads, and the casing windowing tubular column positioning collar is fixedly connected with the casing windowing tubular column through the casing threads; the upper end and the lower end of the tubular column positioning load body are both provided with oil pipe threads, and the tubular column positioning load body is fixedly connected with the hydraulic jet drilling tubular column through the oil pipe threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416026.9A CN111219172B (en) | 2018-11-26 | 2018-11-26 | Tubular column positioning device for hydraulic jet drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416026.9A CN111219172B (en) | 2018-11-26 | 2018-11-26 | Tubular column positioning device for hydraulic jet drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111219172A CN111219172A (en) | 2020-06-02 |
| CN111219172B true CN111219172B (en) | 2021-09-28 |
Family
ID=70832224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811416026.9A Active CN111219172B (en) | 2018-11-26 | 2018-11-26 | Tubular column positioning device for hydraulic jet drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111219172B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611586Y (en) * | 2003-03-26 | 2004-04-14 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | Depth checker for downhole pipe string machinery |
| CN202031510U (en) * | 2011-05-13 | 2011-11-09 | 中国石油天然气股份有限公司 | Sleeve hoop positioner |
| CN205977204U (en) * | 2016-08-31 | 2017-02-22 | 中国石油化工股份有限公司 | Concertina type mechanical type collar locator |
| CN206830169U (en) * | 2017-04-28 | 2018-01-02 | 中国石油天然气股份有限公司 | A kind of casing collar locator (CCL) |
| CN107724971A (en) * | 2017-11-21 | 2018-02-23 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of mechanical hoop locator and its application process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10151172B1 (en) * | 2017-05-22 | 2018-12-11 | Lloyd Murray Dallas | Pressure perforated well casing collar and method of use |
-
2018
- 2018-11-26 CN CN201811416026.9A patent/CN111219172B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611586Y (en) * | 2003-03-26 | 2004-04-14 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | Depth checker for downhole pipe string machinery |
| CN202031510U (en) * | 2011-05-13 | 2011-11-09 | 中国石油天然气股份有限公司 | Sleeve hoop positioner |
| CN205977204U (en) * | 2016-08-31 | 2017-02-22 | 中国石油化工股份有限公司 | Concertina type mechanical type collar locator |
| CN206830169U (en) * | 2017-04-28 | 2018-01-02 | 中国石油天然气股份有限公司 | A kind of casing collar locator (CCL) |
| CN107724971A (en) * | 2017-11-21 | 2018-02-23 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of mechanical hoop locator and its application process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111219172A (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10865606B2 (en) | Downhole centralizer | |
| US20140014373A1 (en) | Low Profile Clamp for a Wellbore Tubular | |
| CA2747497C (en) | Apparatus and method for depth referencing downhole tubular strings | |
| CN105134162A (en) | U-shaped well system and drilling method thereof | |
| CN108952664A (en) | A kind of oil/gas well straight well orientation water-jet multistage fracturing method | |
| CN203847080U (en) | Downhole tool string for pumping perforation operation of horizontal well | |
| CN205117236U (en) | Geology resource prospection bores well casing ball formula rigidity righting device | |
| CN103334709A (en) | Casing pipe annular gas injection technology | |
| CN111219172B (en) | Tubular column positioning device for hydraulic jet drilling | |
| US20170058646A1 (en) | Deepwater extended reach hardrock completions | |
| EP3400360B1 (en) | Big bore running tool quick lock adaptor | |
| US11118412B2 (en) | Downhole location indication system | |
| US20200325751A1 (en) | Mitigation of casing deformation associated with geological settings prone to casing deformation post hydraulic fracture injection | |
| CN202596577U (en) | Radial horizontal well orienting device | |
| CN109826597B (en) | Vertical well fixed face hydraulic perforation fracturing device and method | |
| CN106285472B (en) | Elastic orienting device suitable for radial drilling construction | |
| WO2015069241A1 (en) | Downhole casing patch | |
| CN106014374A (en) | Gyro measurement device for coiled tubing drilling | |
| CN207296976U (en) | A kind of perforation tool | |
| CN106639880B (en) | Unilateral pushing type guiding section | |
| CN205743716U (en) | Guide Anti-inclining drill bit | |
| CN203847087U (en) | Hydraulic jet drilling string | |
| CN104405318A (en) | Well selective reentrancy device and well selective reentrancy method | |
| CN105298474B (en) | A kind of phonetic symbol device | |
| CN203362112U (en) | Full-bore-type voltage-controlled underground well opening valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |