CN113414332B - Fully soluble slip tooth material and preparation method and application thereof - Google Patents
Fully soluble slip tooth material and preparation method and application thereof Download PDFInfo
- Publication number
- CN113414332B CN113414332B CN202110683798.4A CN202110683798A CN113414332B CN 113414332 B CN113414332 B CN 113414332B CN 202110683798 A CN202110683798 A CN 202110683798A CN 113414332 B CN113414332 B CN 113414332B
- Authority
- CN
- China
- Prior art keywords
- slip
- tooth material
- soluble
- blank
- forging
- 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
- 239000000463 material Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000005242 forging Methods 0.000 claims abstract description 17
- 238000001125 extrusion Methods 0.000 claims abstract description 15
- 239000000314 lubricant Substances 0.000 claims abstract description 15
- 230000032683 aging Effects 0.000 claims abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 7
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 230000035882 stress Effects 0.000 claims description 8
- 240000005546 Piper methysticum Species 0.000 claims description 4
- 235000016787 Piper methysticum Nutrition 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 239000002480 mineral oil Substances 0.000 claims description 3
- 235000010446 mineral oil Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Forging (AREA)
- Dental Preparations (AREA)
Abstract
The invention discloses a fully soluble slip tooth material and a preparation method and application thereof, wherein the preparation method comprises the following steps: s1: preparing an extrusion blank of magnesium-aluminum alloy; s2: preserving the heat of the extruded blank for 1.5-2h at the temperature of 370 +/-5 ℃; s3: adding a lubricant into the extrusion blank, placing the extrusion blank into a forging chamber, and performing multi-face repeated forging; s4: finishing forging when the deformation of the forged piece reaches 5-40%, placing the forged piece into a vacuum furnace, and preserving heat for 0.5-1h at the temperature of 320 +/-5 ℃; s5: and carrying out solution treatment on the forged piece, and then carrying out artificial aging to obtain a finish forging blank, namely the all-soluble slip tooth material. The fully soluble slip tooth material has the performance meeting the requirements of slip teeth, has the fully soluble characteristic, can not leave impurities in a sleeve in practical application, does not influence subsequent construction, and simplifies the construction process.
Description
Technical Field
The invention relates to the technical field of downhole tools in the petroleum industry, in particular to a fully soluble slip tooth material and a preparation method and application thereof.
Background
A wide variety of downhole tools are used in hydrocarbon development, some of which require releasable anchoring structures, typical examples of which include: a downhole sealing tool required in special operations such as staged fracturing construction, layered injection and production and the like; the bridge plug tool is used for temporarily plugging a shaft in fracturing construction operation of an oil and gas well. Slips in a traditional anchoring structure are prepared by adopting processes of hardening surface teeth or embedding hard alloy teeth, embedding ceramic teeth and the like, the slip teeth can be embedded into a casing wall to cause that a tool cannot move, and the slip is dissolved, loosened and unfreezed by a specially designed structure when deblocking is needed. The traditional slip not only can damage the wall of a casing pipe and cause deformation and damage of the casing pipe, but also can leave fragments of slip teeth in a well, so that the volume and the quality of a reverse-discharging object are increased, the difficulty of subsequent construction in the well is increased, potential safety hazards are caused, and even a lower pipe column is required to drill and grind the casing pipe to be cleaned.
Disclosure of Invention
In view of the above problems, the present invention aims to provide an all-soluble slip tooth material, a preparation method and applications thereof.
The technical scheme of the invention is as follows:
in one aspect, a method for preparing an all-soluble kava tooth material is provided, which comprises the following steps:
s1: preparing an extrusion blank of magnesium-aluminum alloy;
s2: preserving the heat of the extruded blank for 1.5-2h at the temperature of 370 +/-5 ℃;
s3: adding a lubricant into the extrusion blank, placing the extrusion blank into a forging chamber, and performing multi-face repeated forging;
s4: finishing forging when the deformation of the forged piece reaches 5-40%, placing the forged piece into a vacuum furnace, and preserving heat for 0.5-1h at the temperature of 320 +/-5 ℃;
s5: and carrying out solution treatment on the forged piece, and then carrying out artificial aging to obtain a finish forging blank, namely the all-soluble slip tooth material.
Preferably, the magnesium-aluminum alloy extrusion blank comprises the following elements in percentage by mass: 80-90% of Mg, 78-15% of Al5, 1-3% of Ni, 0.1-0.3% of Zn, 0.5-1.5% of Cr, 1-2% of Be, trace Cu, trace Li, 1-3% of Y, 1-3% of Gd and 0.4-1% of Zr; the trace means greater than 0 and less than 0.1%.
Preferably, the lubricant is a graphite lubricant.
Preferably, the graphite lubricant comprises the following components in percentage by mass: 6-10% of crystallized graphite, 0.8-1.2% of boron nitride, 0.1-0.3% of sodium silicate and the balance of mineral oil.
Preferably, the artificial aging is performed by full aging.
On the other hand, the fully soluble kava-kava composite is prepared by adopting the preparation method of any one of the above fully soluble kava-kava materials.
In another aspect, there is provided a use of the fully soluble slip tooth material in the field of downhole tools. The utility model provides an all-soluble slips, includes the adoption all-soluble slips tooth material preparation slips body and slips tooth form, the surface of slips body is equipped with the slips hole, the slips tooth sets up it is downthehole to slip, the slips body is equipped with the internal conical surface, be equipped with a plurality of stress channels along the radial evenly distributed of internal conical surface on the internal conical surface.
Preferably, the internal conical surface is at 13-18 ° to the central axis of the slip body.
Preferably, the slip bore is 60-90 ° from the central axis of the slip body.
The beneficial effects of the invention are:
the fully soluble slip tooth material can meet the mechanical property required by slip teeth, and replaces the conventional anchoring structure in which the slips are provided with hardened surface teeth or embedded with hard alloy teeth, embedded with ceramic teeth and the like, so that the bridge plug is fully soluble; the dissolution time is fast, the unfreezing time is shortened totally, and the reverse discharge is almost '0'.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the construction of an all soluble slip according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of an all soluble slip using cone anchoring in accordance with an embodiment of the present invention.
In the figure: the slip comprises a slip body 1, slip teeth 2, an inner conical surface 3, a fixed boss 4, a stress groove 5, a slip hole 6 and a cone 7.
Detailed Description
The invention is further illustrated with reference to the following figures and examples. It should be noted that, in the present application, the embodiments and the technical features of the embodiments may be combined with each other without conflict. It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The use of the terms "comprising" or "including" and the like in the present disclosure is intended to mean that the elements or items listed before the term cover the elements or items listed after the term and their equivalents, but not to exclude other elements or items.
On one hand, the invention provides a fully soluble slip tooth material which is prepared by the following steps:
s1: preparing an extrusion blank of magnesium-aluminum alloy; the magnesium-aluminum alloy extrusion blank comprises the following elements in percentage by mass: 80-90% of Mg, 5-15% of Al, 1-3% of Ni, 0.1-0.3% of Zn, 0.5-1.5% of Cr, 1-2% of Be, trace Cu, trace Li, 1-3% of Y, 1-3% of Gd and 0.4-1% of Zr; the trace means greater than 0 and less than 0.1%.
S2: and (3) preserving the heat of the extruded blank for 1.5-2h at the temperature of 370 +/-5 ℃.
S3: and adding a lubricant into the extrusion blank, then placing the extrusion blank into a forging chamber, and performing multi-face repeated forging.
In a specific embodiment, the lubricant is a graphite lubricant. Optionally, the graphite lubricant comprises the following components in mass percent: 6-10% of crystallized graphite, 0.8-1.2% of boron nitride, 0.1-0.3% of sodium silicate and the balance of mineral oil. It should be noted that, in addition to the lubricant of the present example, other forging lubricants known in the art are also applicable to the present invention.
S4: and finishing forging when the deformation of the forged piece reaches 5-40%, and placing the forged piece into a vacuum furnace, and preserving heat for 0.5-1h at the temperature of 320 +/-5 ℃.
S5: and carrying out solution treatment on the forged piece, and then carrying out artificial aging to obtain a finish forging blank, namely the all-soluble slip tooth material. In a specific embodiment, full aging is performed when artificial aging is performed.
The tensile strength of the fully soluble slip tooth material is more than or equal to 550MPa, and the compressive strength is high550MPa or more, elongation of 3% or more, and dissolution rate of 1-3 mg/(cm)2H) Brinell hardness of 120N/mm or more2(ii) a The mechanical property requirement of the slip teeth can be met. In a specific embodiment, the compression strength of the extruded blank in step S1 of the present invention is 486MPa, and the brinell hardness is 110; the compressive strength of the finished product of the fully soluble slip tooth material obtained in the step S5 is 900-1300MPa, and the Brinell hardness is 120; the compressive strength of the ceramic is 800MPa, the Vickers hardness is 88, the performance of the invention is obviously improved, and the slip tooth can be dissolved without leaving impurities in the sleeve, thereby not influencing the subsequent construction and simplifying the construction process.
In another aspect, the present invention also provides a use of the fully soluble slip tooth material in the field of downhole tools, such as packers, bridge plugs, and the like, where the need for a releasable anchoring structure is desired.
In a specific embodiment, as shown in fig. 1-2, an all-soluble slip comprises a slip body 1 and slip teeth 2 made of the all-soluble slip tooth material, a slip hole 6 is formed in an outer surface of the slip body 1 at an angle of 60-90 ° to a central axis of the slip body 1, the slip teeth 2 are disposed in the slip hole 6, the slip body 1 is provided with an inner conical surface 3 at an angle of 13-18 ° to the central axis of the slip body 1, and a plurality of stress grooves 5 are uniformly distributed along a radial direction of the inner conical surface 3. Optionally, the width of the stress groove 5 is 1-3mm, and the depth of the stress groove 5 is 3-6 mm. Optionally, 6-12 stress grooves 5 are provided, and a fixing boss 4 is arranged between two adjacent stress grooves 5.
The anchoring principle of the embodiment is as follows: the staged fracturing setting tool applies certain pressure to push the cone 7, the cone 7 moves downwards along with the continuous increase of the pressure to prop open the slip body 1, so that the slip body 1 and the slip teeth 2 are tightly attached to the inner wall of the sleeve to realize anchoring.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A preparation method of an all-soluble kava tooth material is characterized by comprising the following steps:
s1: preparing an extrusion blank of magnesium-aluminum alloy; the magnesium-aluminum alloy extrusion blank comprises the following elements in percentage by mass: 80-90% of Mg, 5-15% of Al, 1-3% of Ni, 0.1-0.3% of Zn, 0.5-1.5% of Cr, 1-2% of Be, trace Cu, trace Li, 1-3% of Y, 1-3% of Gd and 0.4-1% of Zr; the trace means greater than 0 and less than 0.1%;
s2: preserving the heat of the extruded blank for 1.5-2h at the temperature of 370 +/-5 ℃;
s3: adding a lubricant into the extrusion blank, placing the extrusion blank into a forging chamber, and performing multi-face repeated forging;
s4: finishing forging when the deformation of the forged piece reaches 5-40%, placing the forged piece into a vacuum furnace, and preserving heat for 0.5-1h at the temperature of 320 +/-5 ℃;
s5: and carrying out solution treatment on the forged piece, and then carrying out artificial aging to obtain a finish forging blank, namely the all-soluble slip tooth material.
2. The method of making an all soluble slip tooth material in accordance with claim 1, wherein the lubricant is a graphite lubricant.
3. The method of making an all soluble slip tooth material according to claim 2, wherein the graphite lubricant comprises the following components in mass percent: 6-10% of crystallized graphite, 0.8-1.2% of boron nitride, 0.1-0.3% of sodium silicate and the balance of mineral oil.
4. The method of making an all soluble slip tooth material according to claim 1, wherein the artificial aging is performed with full aging.
5. An all soluble slip tooth material, characterized in that it is prepared by the method of any one of claims 1-4.
6. Use of the fully soluble slip tooth material of claim 5 in the field of downhole tools.
7. The fully soluble slip is characterized by comprising a slip body and slip teeth, wherein the slip body and the slip teeth are made of the fully soluble slip tooth material according to claim 5, slip holes are formed in the outer surface of the slip body, the slip teeth are arranged in the slip holes, the slip body is provided with an inner conical surface, and a plurality of stress grooves which are uniformly distributed along the radial direction of the inner conical surface are formed in the inner conical surface.
8. The all soluble slip of claim 7, wherein the internal conical surface is between 13-18 ° from a central axis of the slip body.
9. The all soluble slip of claim 7, wherein the slip bore is 60-90 ° from a central axis of the slip body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110683798.4A CN113414332B (en) | 2021-06-21 | 2021-06-21 | Fully soluble slip tooth material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110683798.4A CN113414332B (en) | 2021-06-21 | 2021-06-21 | Fully soluble slip tooth material and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113414332A CN113414332A (en) | 2021-09-21 |
| CN113414332B true CN113414332B (en) | 2022-05-13 |
Family
ID=77789291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110683798.4A Active CN113414332B (en) | 2021-06-21 | 2021-06-21 | Fully soluble slip tooth material and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113414332B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436827A (en) * | 2013-09-04 | 2013-12-11 | 中南大学 | Thermal treatment technology of large-size high-strength wrought magnesium alloy forging |
| CN103586391A (en) * | 2013-11-11 | 2014-02-19 | 沈阳黎明航空发动机(集团)有限责任公司 | Extrusion forming method for blade made of GH2787 high-temperature alloy |
| CN103774016A (en) * | 2014-01-18 | 2014-05-07 | 中南大学 | Medium-strength heat-resistant magnesium alloy |
| CN105525179A (en) * | 2015-12-21 | 2016-04-27 | 华北电力大学 | Preparation method for rare-earth magnesium alloy large-size high-strength forged piece |
| CN108533214A (en) * | 2018-04-10 | 2018-09-14 | 重庆地质矿产研究院 | Degradable alloy and application thereof as single slip type soluble bridge plug |
| CN108571295A (en) * | 2018-02-09 | 2018-09-25 | 北京中科金腾科技有限公司 | A kind of manufacturing method of solvable slips and the solvable slips manufactured by this method |
| CN208073423U (en) * | 2018-04-10 | 2018-11-09 | 重庆地质矿产研究院 | Single slip type soluble bridge plug |
| CN208845142U (en) * | 2018-08-31 | 2019-05-10 | 四川省威沃敦化工有限公司 | A kind of solvable bridge plug kava structure of minor diameter |
| CN110004341A (en) * | 2019-04-30 | 2019-07-12 | 上海大学 | High-strength rare earth-containing magnesium alloy and preparation method thereof |
| CN110017117A (en) * | 2019-05-21 | 2019-07-16 | 卢晓东 | Soluble bridge plug |
| CN110067529A (en) * | 2019-05-24 | 2019-07-30 | 北京易联结科技发展有限公司 | A kind of solvable bridge plug of single deck tape-recorder watt |
| CN110184518A (en) * | 2019-04-24 | 2019-08-30 | 北京易联结科技发展有限公司 | A kind of rapidly-soluble high-strength high-elongation ratio magnesium alloy and preparation method thereof |
| CN110885934A (en) * | 2018-09-10 | 2020-03-17 | 嘉丰工业科技（惠州）有限公司 | Process for squeeze casting of magnesium alloy casting |
| CN210343303U (en) * | 2019-08-14 | 2020-04-17 | 北京捷贝通石油技术股份有限公司 | Soluble bridge plug for staged fracturing |
| CN112377122A (en) * | 2020-11-11 | 2021-02-19 | 中石化石油工程技术服务有限公司 | Full soluble slip |
| CN112647890A (en) * | 2020-12-24 | 2021-04-13 | 中石化石油工程技术服务有限公司 | Improved fully-soluble bridge plug |
-
2021
- 2021-06-21 CN CN202110683798.4A patent/CN113414332B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436827A (en) * | 2013-09-04 | 2013-12-11 | 中南大学 | Thermal treatment technology of large-size high-strength wrought magnesium alloy forging |
| CN103586391A (en) * | 2013-11-11 | 2014-02-19 | 沈阳黎明航空发动机(集团)有限责任公司 | Extrusion forming method for blade made of GH2787 high-temperature alloy |
| CN103774016A (en) * | 2014-01-18 | 2014-05-07 | 中南大学 | Medium-strength heat-resistant magnesium alloy |
| CN105525179A (en) * | 2015-12-21 | 2016-04-27 | 华北电力大学 | Preparation method for rare-earth magnesium alloy large-size high-strength forged piece |
| CN108571295A (en) * | 2018-02-09 | 2018-09-25 | 北京中科金腾科技有限公司 | A kind of manufacturing method of solvable slips and the solvable slips manufactured by this method |
| CN108533214A (en) * | 2018-04-10 | 2018-09-14 | 重庆地质矿产研究院 | Degradable alloy and application thereof as single slip type soluble bridge plug |
| CN208073423U (en) * | 2018-04-10 | 2018-11-09 | 重庆地质矿产研究院 | Single slip type soluble bridge plug |
| CN208845142U (en) * | 2018-08-31 | 2019-05-10 | 四川省威沃敦化工有限公司 | A kind of solvable bridge plug kava structure of minor diameter |
| CN110885934A (en) * | 2018-09-10 | 2020-03-17 | 嘉丰工业科技（惠州）有限公司 | Process for squeeze casting of magnesium alloy casting |
| CN110184518A (en) * | 2019-04-24 | 2019-08-30 | 北京易联结科技发展有限公司 | A kind of rapidly-soluble high-strength high-elongation ratio magnesium alloy and preparation method thereof |
| CN110004341A (en) * | 2019-04-30 | 2019-07-12 | 上海大学 | High-strength rare earth-containing magnesium alloy and preparation method thereof |
| CN110017117A (en) * | 2019-05-21 | 2019-07-16 | 卢晓东 | Soluble bridge plug |
| CN110067529A (en) * | 2019-05-24 | 2019-07-30 | 北京易联结科技发展有限公司 | A kind of solvable bridge plug of single deck tape-recorder watt |
| CN210343303U (en) * | 2019-08-14 | 2020-04-17 | 北京捷贝通石油技术股份有限公司 | Soluble bridge plug for staged fracturing |
| CN112377122A (en) * | 2020-11-11 | 2021-02-19 | 中石化石油工程技术服务有限公司 | Full soluble slip |
| CN112647890A (en) * | 2020-12-24 | 2021-04-13 | 中石化石油工程技术服务有限公司 | Improved fully-soluble bridge plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113414332A (en) | 2021-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105950930B (en) | A kind of solvable extruded Magnesium Alloy and preparation method thereof | |
| US20070221005A1 (en) | Composite powder metal variable boundary gear and method | |
| CN108571295B (en) | Method for manufacturing soluble slips and soluble slips manufactured by same | |
| CN101827667B (en) | Core rod forging for precise internal geometry | |
| CN108894731B (en) | Polycrystalline diamond down-the-hole drill bit and preparation method thereof | |
| CN114896775B (en) | A method for evaluating the interlayer isolation of cement sheath under fracturing conditions | |
| CN108533214A (en) | Degradable alloy and application thereof as single slip type soluble bridge plug | |
| CN102900377B (en) | Threaded connection type all-aluminum alloy drill stem | |
| DE112011101162T5 (en) | Slanted stator for a displacement motor | |
| CN109812243A (en) | Degradable positioning ball seat is set in a kind of casing | |
| CN105888639A (en) | Feeding-controlling full-bore sliding sleeve sectional fracturing tube column | |
| CN113414332B (en) | Fully soluble slip tooth material and preparation method and application thereof | |
| CN1887473A (en) | Making process of drill pipe with internally and externally thickened end | |
| CN104551583B (en) | Strain-induced method semi-solid-state manufacturing process for radial forging of well drilling roller bit | |
| JP2010537048A (en) | Manufacturing method of forged carburized metal powder parts | |
| CN1277947C (en) | Petroleum casing pipe suitable to development of oil field through water injection and producing method | |
| JP2010537137A (en) | Composite metal powder variable boundary gear and method | |
| CN113245389B (en) | Processing method of soluble aluminum alloy | |
| CN105156038B (en) | Rock bit gradient composites carbide button and its processing method | |
| CN2276985Y (en) | Pressure balance sealed bearing tri-cone rotary drill bit | |
| CN113737039A (en) | 3DP preparation process of high-strength rapid-dissolving magnesium alloy for underground temporary plugging tool | |
| CN108626109B (en) | A kind of tempering porcelain-metal composite slush pump large scale cylinder sleeve and its prestressing force hot-assembling method | |
| CN117102726B (en) | Preparation method of composite oil distribution disc for casting lead-tin bronze on steel surface | |
| CN117684912B (en) | Soluble reverse bridge plug | |
| CN221256733U (en) | Timing quick-dissolving tile |
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 |