CN109630035A - A kind of sulfur resistant drill pipe - Google Patents
A kind of sulfur resistant drill pipe Download PDFInfo
- Publication number
- CN109630035A CN109630035A CN201910105099.4A CN201910105099A CN109630035A CN 109630035 A CN109630035 A CN 109630035A CN 201910105099 A CN201910105099 A CN 201910105099A CN 109630035 A CN109630035 A CN 109630035A
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- female connector
- pin end
- drill pipe
- sulfur resistant
- 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
Links
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 19
- 239000011593 sulfur Substances 0.000 title claims abstract description 19
- 238000005553 drilling Methods 0.000 claims abstract description 114
- 230000008719 thickening Effects 0.000 claims abstract description 34
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 210000000988 bone and bone Anatomy 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 abstract description 7
- 239000003129 oil well Substances 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- DNTFEAHNXKUSKQ-RFZPGFLSSA-N (1r,2r)-2-aminocyclopentane-1-sulfonic acid Chemical compound N[C@@H]1CCC[C@H]1S(O)(=O)=O DNTFEAHNXKUSKQ-RFZPGFLSSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (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 discloses a kind of sulfur resistant drill pipes, it uses SS135 grade of steel, including drilling rod ontology, one end of drilling rod ontology is provided with pin end, drilling rod ontology is provided with female connector far from the other end of pin end, raised center is provided between pin end and female connector, annular spread is connected with several first reinforcing ribs between pin end and raised center, and annular spread is connected with several second reinforcing ribs between female connector and raised center.The present invention is by being respectively set the second thickening ring and the first thickening ring on pin end and female connector, so that card column inlay card is inside card slot, intensive properties after enhancing drilling rod connection, it prevents from fractureing in junction, raised center is arranged on drilling rod simultaneously to pass through the first reinforcing rib respectively and connect with the second reinforcing rib with pin end and female connector, so that drilling rod provides the intensity of drilling rod entirety when needing to beat oblique oil well, the puncture that fractures is prevented.
Description
Technical field
The present invention relates to a kind of drilling rod, in particular to a kind of sulfur resistant drill pipe.
Background technique
It is well known that it is known that requiring to use drilling rod in the drilling process of petroleum, natural gas, water source and mineral reserve.
Drilling rod is connected by tool joint, and in During regular rotation, drilling rod will bear external and internal pressure, axial force, moment of flexure simultaneously
With the effect of torque.However common drilling rod intensity is not high, after long-time service, failure accidents can frequently occur for tool joint,
Become the principal mode of drilling rod failure.Currently, the sulfur resistant drill pipe of acid-soluble oil gas field development is by drill pipe body and both ends
Male connection, female adapter is welded.Different grade of steels are respectively adopted in drill pipe body and the internal and external screw thread connector at both ends
H_2S stress corrosion resistance material be process, drill pipe body and nipple are then fixed on one by friction flat welding process
It rises；Then improve the performance of welding section by carrying out heat treatment to weld seam position.Since the characteristics of welding procedure itself, to resist
The H_2S stress corrosion resistance ability of sulfur drill rod weld seam position is significantly lower than tube body and joint area, becomes entire sulfur resistant drill pipe the most
Weak position, and the position of stress corrosion fracture most easily occurs.The low H_2S stress corrosion resistance ability of weld seam, which becomes to restrict, to be resisted
Huge obstacle sulfur drill rod research and development and promoted and applied.With the development of market economy, the further increasing of energy demand, stone
The raising of oily resource exploration technology, deeper, more complicated oil gas field are explored, and petroleum equipment technical requirements are also mentioned with new platform
Rank.Original drilling equipment is lower to drilling rod requirement because geology is shallower, and corrosivity is less.With petroleum resources exploration engineering
It improving, more deeper, mordant oil gas field is found and exploits, previous drilling equipment required also to improve, drilling rod
Corrode also more serious.And now during well-digging, most wellbores be not it is vertical, inclined shaft, horizontal well using more and more,
In effect of " dog-leg " the position drilling rod by alternate stress, poor toughness, it is easy to fracture occur or pierce through accident.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the defects of the prior art, provide a kind of sulfur resistant drill pipe, use
The second thickening ring and the first thickening ring is respectively set on pin end and female connector, so that card column inlay card is in card slot in SS135 grade of steel
Inside, the stress for making drilling rod that pin end and female connector not only be relied on to provide when connecting is as connection support, enhancing drilling rod connection
Intensive properties afterwards prevent from fractureing in junction, at the same be arranged between card column it is fluted, by close in inside grooves filled rubber
Envelope block prevents drilling fluid or oil leakage to drilling rod surface inside drilling rod from corroding to drilling rod, while the top of internal thread segment
End and the bottom end of external thread section connect to forming sealing shoulder, and the bottom end of internal thread segment and the top of external thread section connect to forming torque
Shoulder, dual stage shoulder design so that stress distribution is more uniform, internal thread segment top and external thread section junction both ends all
Load can be shared, the stress for reducing junction is concentrated, and increases the torsional strength of tool joint, while center being arranged on drilling rod
Thickening layer passes through the first reinforcing rib respectively and connects with the second reinforcing rib with pin end and female connector, so that drilling rod needs to play oblique oil
The intensity of drilling rod entirety is provided when well, prevents the puncture that fractures, while drilling rod uses that SS135 grade of steel material is made and inside is smooth
Structure prevents the service life for enhancing drilling rod while blocking inside drilling rod.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A kind of sulfur resistant drill pipe of the present invention, uses SS135 grade of steel, including drilling rod ontology, one end of the drilling rod ontology is set
It is equipped with pin end, the drilling rod ontology is provided with female connector far from the other end of pin end, between the pin end and female connector
It is provided with raised center, annular spread is connected with several first reinforcing ribs between the pin end and raised center, described
Annular spread is connected with several second reinforcing ribs between female connector and raised center.
As a preferred technical solution of the present invention, the side outer end of the female connector is surrounded with the first thickening
Ring, the inside of the thickening ring are provided with round card slot, and the female connector is internally provided with internal thread segment.
As a preferred technical solution of the present invention, the side outer end of the pin end is surrounded with the second thickening
Ring, the side surface of second thickening ring are surrounded with several card columns, groove are provided between the card column, and in groove
Portion is filled with rubber seal, and one end of the pin end is provided with external thread section.
As a preferred technical solution of the present invention, first thickening ring and the second thickening ring cross-sectional area size phase
Together, the card column can inlay card in card slot.
As a preferred technical solution of the present invention, the upper and lower ends of the internal thread segment and external thread section are inclination
Step surface, and the top of internal thread segment and the bottom end of external thread section connect to forming sealing shoulder when two drilling rods connect, interior
The bottom end of thread segment and the top of external thread section connect to forming torque shoulder.
As a preferred technical solution of the present invention, first reinforcing rib and the second reinforcing rib quantity are six, and
It is horizontal consistent with drilling rod ontology.
As a preferred technical solution of the present invention, it is external thickening that the drilling rod ontology, which thickeies mode, in drilling rod
Portion's through-hole is smoothly without any convex block.
As a preferred technical solution of the present invention, the drilling rod ontology uses SS135 grade of steel material.
Compared with prior art, beneficial effects of the present invention are as follows:
The present invention is by being respectively set the second thickening ring and the first thickening ring on pin end and female connector, so that card column card
Inside card slot, the stress for making drilling rod that pin end and female connector not only be relied on to provide when connecting is as connection support, enhancing
Intensive properties after drilling rod connection, prevent from fractureing in junction, at the same be arranged between card column it is fluted, by being filled out in inside grooves
Filling rubber sealing block prevents drilling fluid or oil leakage to drilling rod surface inside drilling rod from corroding to drilling rod, while interior spiral shell
The top of line section and the bottom end of external thread section connect to forming sealing shoulder, and the bottom end of internal thread segment and the top of external thread section connect
Torque shoulder is formed, dual stage shoulder designs so that stress distribution is more uniform, on the top and external thread section junction of internal thread segment
Both ends can share load, reduce junction stress concentrate, increase the torsional strength of tool joint, while on drilling rod
Setting raised center passes through the first reinforcing rib respectively and connects with the second reinforcing rib with pin end and female connector, so that drilling rod needs
The intensity of drilling rod entirety is provided when beating oblique oil well, prevents the puncture that fractures, while drilling rod uses SS135 grade of steel material to be made and interior
Portion is smooth structure, prevents the service life for enhancing drilling rod while blocking inside drilling rod, this design can achieve more advanced
Not.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is schematic diagram of internal structure of the invention；
Fig. 3 is connector connection schematic diagram of the invention；
Fig. 4 is pin end side view of the invention；
Fig. 5 is female connector side view of the invention；
In figure: 1, drilling rod ontology；2, pin end；3, female connector；4, raised center；5, the first reinforcing rib；6, second adds
Strengthening tendons；7, the first thickening ring；8, card slot；9, internal thread segment；10, the second thickening ring；11, card column；12, groove；13, external screw thread
Section.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1
As shown in Figs. 1-5, the present invention provides a kind of sulfur resistant drill pipe, uses SS135 grade of steel, including drilling rod ontology 1, drilling rod
One end of ontology 1 is provided with pin end 2, and drilling rod ontology 1 is provided with female connector 3 far from the other end of pin end 2, pin end 2 with
Raised center 4 is provided between female connector 3, annular spread is connected with several first and adds between pin end 2 and raised center 4
Strengthening tendons 5, annular spread is connected with several second reinforcing ribs 6 between female connector 3 and raised center 4.
Further, the side outer end of female connector 3 is surrounded with the first thickening ring 7, and the inside of thickening ring 7 is provided with circle
Card slot 8, female connector 3 are internally provided with internal thread segment 9.
The side outer end of pin end 2 is surrounded with the second thickening ring 10, the side surface loop winding of the second thickening ring 10
Several card columns 11 are equipped with, groove 12 is provided between card column 11, and are filled with rubber seal, pin end 2 inside groove 12
One end be provided with external thread section 13.
First thickening ring 7 is identical as 10 cross-sectional area size of the second thickening ring, card column 11 can inlay card in card slot 8, it is public
Connector 2 connects with female connector 3, and 13 rotary sleeve of external thread section on pin end 2 taps into the internal thread segment 9 inside female connector 3, card
11 inlay card of column enhances the support force of drilling rod junctions, prevents forced breakage inside card slot 8.
Internal thread segment 9 and the upper and lower ends of external thread section 13 are inclined step surface, and interior when two drilling rods connect
The top of thread segment 9 and the bottom end of external thread section 13 connect to forming sealing shoulder, the bottom end of internal thread segment 9 and external thread section 13
Top connects to forming torque shoulder, and the design of dual stage shoulder makes drilling rod have highly resistance torsional forces.
First reinforcing rib 5 and 6 quantity of the second reinforcing rib are six, and horizontal consistent with drilling rod ontology 1, the first reinforcing rib 5
Connection pin end 2 and raised center 4, the second reinforcing rib 6 connect female connector 3 and raised center 4, enhance the strong of drilling rod entirety
Degree, in drilling rod oblique well-digging, humidification power prevents from fractureing.
1 thickening mode of drilling rod ontology is external thickening, and for drilling rod interior bone smoothly without any convex block, drilling rod inside is smooth
Bumpless prevents blocking inside drilling rod convenient for the conveying of the media such as drilling fluid.
Drilling rod ontology 1 uses SS135 grade of steel material, has the spy light-weight, frictional resistance is small using SS135 steel grade drill pipe
Point can reduce the load of drilling machine, improve the drilling depth of drilling machine, reduce drag force compared to common drill steel, reduce torque, resistance
Power, while less waterpower is also only needed, cost of winning is greatly reduced, and hydrogen sulfide and carbon dioxide corrosion can be prevented,
Improve safe operation performance, and SS135 grade of steel have it is nonmagnetic, it is easier to operate to be not easy wear sleeve.
Specifically, adjacent drilling rod connects, and inside the rotation access female connector 3 of pin end 2, external thread section 13 and internal thread segment
Tooth block on 9 mutually agrees with, and drilling rod is made to connect closely, the second thickening ring 7 on pin end 2 and the first thickening ring 7 on female connector 3
It is in contact, for 11 inlay card of card column in the inside of card slot 8, so that drilling rod is connected makes to provide stronger support force, prevents drilling rod in oblique oil
Well makes junction fracture, and groove 12 is provided between card column 11, and 12 inside filled rubber sealing ring of groove prevents inside drilling rod
Drilling fluid seepage flow go out the outer end face of rotten drilling rod ontology 1, enhance the service life of drilling rod, internal thread segment 9 and external thread section 13
Upper and lower ends be inclined step surface, and when two drilling rods connect the top of internal thread segment 9 and external thread section 13 bottom
End connects to forming sealing shoulder, and the bottom end of internal thread segment 9 and the top of external thread section 13 connect to forming torque shoulder, and dual stage shoulder is set
Meter can share load at the both ends of 13 junction of top and external thread section of internal thread segment 9 so that stress distribution is more uniform,
The stress for reducing junction is concentrated, and is increased the torsional strength of tool joint, and fairshaped design reduces cyclic pressure dissipation, is allowed
There are more outer diameter abrasion losses, to extend the service life of drilling rod, while drilling rod ontology 1 is all made of the mode of external upset (EU) and improves
Ability can be salvaged, the anti-fatigue ability of connector is improved, the smooth structure inside drilling rod enables drilling fluid is more steady must circulate,
Smaller turbulent flow reduces drilling fluid to the erosion inside drilling rod, reduces the chance of cement and solids particles precipitate inside connector
Pumping efficiency and ability in drilling rod are improved, the ability reduction shock for removing various cable instruments in drilling rod, the first reinforcing rib 5 are increased
Connect pin end 2 and raised center 4, the second reinforcing rib 6 connects female connector 3 and raised center 4, the first reinforcing rib 5 and the
Two reinforcing ribs 6 are rounded to be fitted around connection with 1 uniform level direction of drilling rod ontology, when drilling rod needs are applied in oblique oil
When well, reinforcing rib can enhance the intensity of drilling rod ontology 1, and the time for preventing diagonal break or puncture occurs, while drilling rod
Ontology 1 is made using SS135 grade of steel material, and SS135 steel grade drill pipe has the characteristics that light-weight, frictional resistance is small, can subtract
The load of few drilling machine, improves the drilling depth of drilling machine, reduces drag force compared to common drill steel, reduces torque, resistance, simultaneously
Also less waterpower is only needed, cost of winning is greatly reduced, and hydrogen sulfide and carbon dioxide corrosion can be prevented, improves operation
Security performance, and SS135 grade of steel have it is nonmagnetic, it is easier to operate to be not easy wear sleeve.
The present invention is by being respectively set the second thickening ring and the first thickening ring on pin end and female connector, so that card column card
Inside card slot, the stress for making drilling rod that pin end and female connector not only be relied on to provide when connecting is as connection support, enhancing
Intensive properties after drilling rod connection, prevent from fractureing in junction, at the same be arranged between card column it is fluted, by being filled out in inside grooves
Filling rubber sealing block prevents drilling fluid or oil leakage to drilling rod surface inside drilling rod from corroding to drilling rod, while interior spiral shell
The top of line section and the bottom end of external thread section connect to forming sealing shoulder, and the bottom end of internal thread segment and the top of external thread section connect
Torque shoulder is formed, dual stage shoulder designs so that stress distribution is more uniform, on the top and external thread section junction of internal thread segment
Both ends can share load, reduce junction stress concentrate, increase the torsional strength of tool joint, while on drilling rod
Setting raised center passes through the first reinforcing rib respectively and connects with the second reinforcing rib with pin end and female connector, so that drilling rod needs
The intensity of drilling rod entirety is provided when beating oblique oil well, prevents the puncture that fractures, while drilling rod is made of SS135 grade of steel matter and inside
For smooth structure, the service life for enhancing drilling rod while blocking inside drilling rod is prevented.
Finally, it should be noted that these are only the preferred embodiment of the present invention, it is not intended to restrict the invention, although
Present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, still can be right
Technical solution documented by foregoing embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (8)
1. a kind of sulfur resistant drill pipe, including drilling rod ontology (1), which is characterized in that one end of the drilling rod ontology (1) is provided with public access
Head (2), the drilling rod ontology (1) are provided with female connector (3) far from the other end of pin end (2), and the pin end (2) connects with mother
Be provided with raised center (4) between head (3), the pin end (2) and raised center (4) if between annular spread be connected with
Dry first reinforcing rib (5), annular spread is connected with several second reinforcing ribs between the female connector (3) and raised center (4)
(6)。
2. a kind of sulfur resistant drill pipe according to claim 1, which is characterized in that the side outer end of the female connector (3) is surround
It is provided with the first thickening ring (7), the inside of the thickening ring (7) is provided with round card slot (8), and the inside of the female connector (3) is set
It is equipped with internal thread segment (9).
3. a kind of sulfur resistant drill pipe according to claim 1, which is characterized in that the side outer end of the pin end (2) is surround
It is provided with the second thickening ring (10), the side surface of second thickening ring (10) is surrounded with several card columns (11), described
It is provided between card column (11) groove (12), and is filled with rubber seal inside groove (12), the one of the pin end (2)
End is provided with external thread section (13).
4. a kind of sulfur resistant drill pipe according to claim 1, which is characterized in that first thickening ring (7) thickeies with second
Ring (10) cross-sectional area size is identical, the card column (11) can inlay card in the card slot (8).
5. a kind of sulfur resistant drill pipe according to claim 1, which is characterized in that the internal thread segment (9) and external thread section
(13) upper and lower ends are inclined step surface, and the top of internal thread segment (9) and external thread section when two drilling rods connect
(13) bottom end connects to forming sealing shoulder, and the bottom end of internal thread segment (9) and the top of external thread section (13) connect to forming torque
Shoulder.
6. a kind of sulfur resistant drill pipe according to claim 1, which is characterized in that first reinforcing rib (5) is reinforced with second
Muscle (6) quantity is six, and horizontal consistent with drilling rod ontology (1).
7. a kind of sulfur resistant drill pipe according to claim 1, which is characterized in that drilling rod ontology (1) the thickening mode is
Outside thickeies, and drilling rod interior bone is smoothly without any convex block.
8. a kind of sulfur resistant drill pipe according to claim 1, which is characterized in that the drilling rod ontology (1) uses SS135 grade of steel
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910105099.4A CN109630035A (en) | 2019-02-01 | 2019-02-01 | A kind of sulfur resistant drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910105099.4A CN109630035A (en) | 2019-02-01 | 2019-02-01 | A kind of sulfur resistant drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109630035A true CN109630035A (en) | 2019-04-16 |
Family
ID=66064849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910105099.4A Pending CN109630035A (en) | 2019-02-01 | 2019-02-01 | A kind of sulfur resistant drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630035A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485832A (en) * | 2020-04-27 | 2020-08-04 | 中煤科工集团重庆研究院有限公司 | Hexagonal inserted type outer groove high-pressure dense drill rod |
| CN117231137A (en) * | 2023-11-13 | 2023-12-15 | 扬州睿德石油机械有限公司 | Logging while drilling intelligent drilling tool and use method thereof |
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