CN113431510A - Well cementation tool for oil and gas exploitation operation - Google Patents
Well cementation tool for oil and gas exploitation operation Download PDFInfo
- Publication number
- CN113431510A CN113431510A CN202110797173.0A CN202110797173A CN113431510A CN 113431510 A CN113431510 A CN 113431510A CN 202110797173 A CN202110797173 A CN 202110797173A CN 113431510 A CN113431510 A CN 113431510A
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- clamping
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- 238000007373 indentation Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 7
- 239000004568 cement Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Abstract
The invention relates to the field of oil and gas exploitation, and particularly discloses a well cementation tool for oil and gas exploitation operation, wherein the well cementation tool comprises a sleeve provided with a centralizer, the centralizer comprises a spring, a stop component and a sleeve with a centralizing wing, the spring, the stop component and the sleeve are all sleeved on the sleeve, the two stop components are respectively an upper stop component and a lower stop component, the top end of the sleeve is in upward stop fit with the upper end of the outer circumferential surface of the sleeve through the upper stop component, and the bottom end of the sleeve is in downward stop fit with the lower end of the outer circumferential surface of the sleeve through the lower stop component; the sleeve is provided with a blocking component; the spring is sleeved on the sleeve and is positioned between the lower stop component and the sleeve. The oil of the invention can independently discharge the centralizer from the sleeve, the pipe section for centralization is a sleeve, and the circulating pipe section is a sleeve, thereby increasing the strength of the centralization part and improving the working condition of the circulating pipe section.
Description
Technical Field
The invention relates to the field of oil and gas exploitation, in particular to a well cementation tool for oil and gas exploitation operation.
Background
Well cementation is an essential link in the process of well drilling and completion operation, and mainly comprises casing setting and cement injection. The main purpose of cementing is to protect and support the casing in the oil and gas well, and to seal off oil, gas and water formations. The oil gas water layer is connected into a whole in the shaft, and the well wall is exposed in liquid and is easy to collapse and deform, so that in order to pertinently exploit oil gas, seal the water layer, reinforce and protect the well wall, for creating conditions for subsequent layering operation, well cementation operation must be carried out, namely, cement is injected into an oil layer casing pipe, the oil gas water layer is strictly separated, and a layer of steel protective wall is added to the well hole. The well cementation site construction mainly comprises a hoisting system and a power system of a drilling platform, a well cementation vehicle and a cement truck water tank truck. During construction, a drilling tool is used for lowering a casing string, and the casing string mainly comprises a floating shoe, a floating hoop, a casing string, a centralizer, a casing outer packer and the like. The centralizer acts to centralize the casing within the wellbore to ensure the centralization of the associated components in the completion operations used in the field.
Existing centralizers form the centralizing wing directly onto the pipeline. However, the centralizing wing is seriously worn, and when drilling tools with different inner holes are used, the centralizing wing pipe sections with different sizes need to be replaced. Based on this, prior art CN209457894U discloses an electrically conductive centralizer, which detachably mounts a centralizing wing on a pipe section through a screw fastener, so that the centralizing wing can be replaced individually according to the use condition and the wear condition, and the cost is reduced. However, in such a centralizer, the centralizing pipe section and the circulating pipe section share a pipeline, which results in severe pipeline conditions.
Disclosure of Invention
The invention aims to: the well cementation tool for oil and gas exploitation operation is provided, and the problems that the existing centralizing pipe section and the circulating pipe section share one pipeline, so that the pipeline is severe in working condition, inconvenient to maintain, troublesome to replace and the like are solved. Based on the technical problems, the structure of the centralizer is newly designed and improved, so that the centralizing wings and the back-centralizing pipelines are independent from each other, the independent maintenance of the centralizing wings is facilitated, the service life of the section of pipeline is prolonged, the convenience of oil and gas exploitation is improved, and the tool cost of the oil and gas exploitation is reduced.
The technical scheme adopted by the invention is as follows:
the well cementation tool for oil and gas exploitation operation comprises a casing provided with a centralizer, wherein the centralizer comprises a spring, two stop assemblies and a sleeve with a centralizing wing, the spring, the stop assemblies and the sleeve are all sleeved on the casing, the two stop assemblies are respectively an upper stop assembly and a lower stop assembly, the top end of the sleeve is in upward stop fit with the upper end of the outer circumferential surface of the casing through the upper stop assembly, and the bottom end of the sleeve is in downward stop fit with the lower end of the outer circumferential surface of the casing through the lower stop assembly;
the sleeve is provided with a blocking component;
the spring is sleeved on the sleeve and is positioned between the lower stop component and the sleeve;
the stop component comprises a clamping piece and an end cap sleeve sleeved on the sleeve, the clamping piece is positioned in an inner hole of the end cap sleeve, one side of the clamping piece can be inserted into the clamping groove by moving along the radial direction of the sleeve, and the other side of the clamping piece is attached to the inner wall of the end cap sleeve;
in the upper stop assembly, one end of the end cap is contacted with the sleeve, and the other end of the end cap is in stop fit with the clamping piece;
in the lower stop assembly, the end head sleeve is contacted with the sleeve through the spring, and the end head sleeve of the lower stop assembly is pushed to compress the spring, so that the clamping piece in the end head sleeve of the lower stop assembly can be integrally exposed.
Furthermore, the clamping groove extends along the circumferential direction of the sleeve, the clamping piece is of a semicircular ring structure, the inner circumferential surface of the clamping piece is inserted into the clamping groove, and the outer circumferential surface of the clamping piece is attached to the inner wall of the end head sleeve.
Furthermore, the clamping grooves are annular grooves, the number of the clamping pieces is two, and the clamping pieces are spliced in the end head sleeve to form a whole ring.
Furthermore, a socket is arranged on the end face, matched with the clamping piece stop, of the sleeve, and one end of the whole ring protrudes outwards to form an insertion opening matched with the socket.
Further, a notch is milled in the outer circumferential surface of the whole ring and located at the position where the two clamping pieces are attached, a magnet is arranged in the notch, the two clamping pieces are attracted by the magnet, and a warping hole is formed in one side, far away from the axis of the whole ring, of the magnet.
Furthermore, a right angle is milled on the part of the notch on one of the clamping pieces, and an edge matched with the right angle is formed on the magnet.
Furthermore, the warping hole is a through hole, and the axis of the warping hole is perpendicular to the axis of the whole ring.
Furthermore, a gasket sleeved on the sleeve is arranged between the spring and the sleeve, and the spring is abutted to the end sleeve through the gasket.
Furthermore, two groups of righting wing groups are arranged along the axis of the sleeve, each group of righting wing group comprises three righting wings, and the two groups of righting wings are uniformly distributed along the circumference of the sleeve in a staggered manner.
Furthermore, the righting wing is of an isosceles trapezoid plate-shaped structure, and the surface of the lower bottom of the righting wing is connected with the sleeve into a whole.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the well cementation tool for oil and gas exploitation operation, the centralizer is separated from the casing, the pipe section for centralization is the sleeve, and the circulating pipe section is the casing, so that the strength of a centralization part is increased, and the working condition of the circulating pipe section is improved; meanwhile, the centralizer is axially positioned on the sleeve by combining a spring with a stop component without screws or other threaded parts, so that the later-stage disassembly and maintenance of the centralizer are avoided, and the threads are locked;
2. when the lower stop component is assembled, the spring is compressed and the end head sleeve is pushed to make the end head sleeve yield out of the clamping groove, then the two clamping pieces are installed in the clamping groove, then the magnet is installed in the gap, and the two clamping pieces are relatively fixed through the magnet, so that the end head sleeve is prevented from falling out of the clamping groove due to gravity; then, the external force acting on the spring is unloaded, the spring extends outwards and pushes the end cap to move towards the clamping piece until the end cap sleeves the clamping piece in the inner part, and the socket is matched with the socket; the notch is milled on the joint part of the clamping piece, and then the magnet is arranged on the notch, so that the clamping pieces are fixed with each other, the clamping pieces are prevented from falling off from the clamping groove, and the installation convenience is improved;
3. the well cementing tool for oil and gas exploitation operation is convenient for a worker to buckle down the magnet and release magnetic locking due to the fact that the clamping pieces are small in thickness and small in length, and the two clamping pieces fixed through the magnet are conveniently and smoothly disassembled subsequently.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings needed to be used in the embodiment will be briefly described below, and it should be understood that the proportional relationship of each component in the drawings in this specification does not represent the proportional relationship in the actual material selection design, and is only a schematic diagram of the structure or the position, in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken along A-A in FIG. 2;
FIG. 4 is an enlarged view at A in FIG. 3;
FIG. 5 is a schematic view of the construction of a complete ring of the card member assembly;
fig. 6 is a schematic structural view of the end cap.
Reference numerals in the drawings indicate:
1-sleeve, 2-righting wing, 3-sleeve, 4-clamping groove, 5-clamping piece, 6-end cap, 7-bell mouth, 8-spring, 9-socket, 10-gap, 11-magnet, 12-right angle, 13-warped hole and 14-gasket.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The present invention will be described in detail with reference to fig. 1 to 6.
Example 1
As shown in fig. 1 to 6, the well cementation tool for oil and gas exploitation operation of the present invention comprises a casing 1 provided with a centralizer, the centralizer comprises a spring 8, a stop assembly and a sleeve 3 with a centralizing wing 2, the spring 8, the stop assembly and the sleeve 3 are all sleeved on the casing 1, the two stop assemblies are an upper stop assembly and a lower stop assembly, the top end of the sleeve 3 is in upward stop fit with the upper end of the outer circumferential surface of the casing 1 through the upper stop assembly, and the bottom end of the sleeve 3 is in downward stop fit with the lower end of the outer circumferential surface of the casing 1 through the lower stop assembly;
the sleeve 1 is provided with a clamping groove 4 at the position opposite to the stopping component;
the spring 8 is sleeved on the sleeve 3 and is positioned between the lower stop component and the sleeve 3;
the stop assembly comprises a clamping piece 5 and an end cap 6 sleeved on the sleeve 1, the clamping piece 5 is positioned in an inner hole of the end cap 6, one side of the clamping piece 5 can be inserted into the clamping groove 4 by moving along the radial direction of the sleeve 1, and the other side of the clamping piece is attached to the inner wall of the end cap 6;
in the upper stop assembly, one end of the end cap 6 is in contact with the sleeve 3, and the other end of the end cap is in stop fit with the clamping piece 5;
in the lower stopping component, the end cap 6 is contacted with the sleeve 3 through the spring 8, and pushes the end cap 6 of the lower stopping component to compress the spring, so that the clamping piece 5 in the end cap 6 of the lower stopping component can be integrally exposed.
In the invention, the centralizer is separated from the casing, the pipe section for centralization is the sleeve 3, and the circulating pipe section is the casing 1, thereby increasing the strength of the centralization part and improving the working condition of the circulating pipe section. Meanwhile, the centralizer is axially positioned on the sleeve through the spring combined with the stop assembly without screws or other threaded parts, so that the later-stage disassembly and maintenance of the centralizer are avoided, and the threads are locked.
When the centralizer is maintained, the end head sleeve 6 of the lower stopping assembly is pushed to compress the spring, the clamping piece 5 in the end head sleeve 6 of the centralizer can be integrally exposed, then the exposed clamping piece 5 is moved along the radial direction, the stopping and limiting of the lower stopping assembly on the lower end of the sleeve 3 are released, then the spring, the sleeve and the end head sleeve in the upper stopping assembly are sequentially taken down, and then the exposed clamping piece 5 in the upper stopping assembly is radially moved, so that the centralizer is convenient and rapid to disassemble.
Example 2
This embodiment is a specific description of the cooperation between the card member 5 and the card slot in embodiment 1.
As shown in fig. 3 and 4, the locking groove 4 extends along the circumferential direction of the sleeve 1, the clip 5 is of a semi-circular structure, the inner circumferential surface of the clip is inserted into the locking groove 4, and the outer circumferential surface of the clip is attached to the inner wall of the end cap 6.
Furthermore, the clamping groove 4 is an annular groove, and the number of the clamping pieces 5 is two, and the clamping pieces are spliced into a whole ring in the end cap 6, as shown in fig. 5.
Further, a socket 7 is arranged on the end face of the sleeve 3 in stop fit with the clamping piece 5, as shown in fig. 6, and one end of the whole ring protrudes outwards to form a socket 9 in fit with the socket 7, as shown in fig. 4.
It is troublesome to install the lower stop assembly. When the clamping piece 5 is installed, the clamping piece 5 needs to be kept at the clamping groove, but in order to facilitate assembly, the clamping piece 5 is assembled in a transverse mode, so that the clamping piece 5 falls due to lack of support; therefore, during assembly at each time, the clamping piece 5 needs to be fixed in the clamping groove by a hand or a tool, then the compression force acting on the spring is unloaded, the spring extends outwards and pushes the end cap 6 to move towards the clamping piece 5, and after one end of the clamping piece 5 is sleeved in the clamping piece, fingers or tools for fixing the clamping piece 5 are removed. In such an installation, a tool or finger is caused to catch on the tip shroud 6; simultaneously for the direction, be provided with socket, be provided with bellmouth 7 on sleeve 3 on the fastener, when the socket does not cooperate with the bellmouth, exist the annular space between fastener and the end cover 6, still lead to the fastener to fall easily, the striking is on end cover 6, damage fastener inboard and draw-in groove notch. Based on this, the invention adopts the following scheme:
a notch 10 is milled on the outer circumferential surface of the whole ring and positioned at the joint of the two clamping pieces 5, a magnet 11 is arranged in the notch 10, the two clamping pieces 5 are attracted by the magnet 11, and a warping hole 13 is arranged on one side of the magnet 11, which is far away from the axis of the whole ring.
When the lower stop component is assembled, the spring is compressed, the end cap is pushed to make the end cap give way out of the clamping groove, then the two clamping pieces are installed in the clamping groove, then the magnet 11 is installed in the notch 10, and the two clamping pieces 5 are relatively fixed through the magnet 11, so that the lower stop component is prevented from falling out of the clamping groove due to gravity; then the external force acting on the spring is unloaded, the spring extends outwards and pushes the end cap 6 to move towards the clamping piece 5 until the end cap 6 sleeves the clamping piece in the inner socket 7 to be matched with the socket 9.
Thus, the notch 10 is milled on the joint part of the clamping piece 5, and then the magnet is arranged on the notch 10, so that the clamping pieces 5 are fixed with each other, the clamping pieces are prevented from being separated from the clamping grooves, and the installation convenience of the invention is improved.
In addition, since the thickness and length of the card 5 are small, it is inconvenient for a worker to buckle the magnet 11 and release the magnetic locking, in order to facilitate the subsequent smooth detachment of the two card 5 fixed by the magnet, the magnet is preferably arranged on the outer circumferential surface of the whole ring, and the magnet is provided with the warping hole 13, so that when detachment is required, the spring is compressed first, the card 5 in the end cap 6 of the card is exposed as a whole, the thin rod is inserted into the warping hole 13, the magnet is warped down, the magnetic locking is released, and then the two card 5 automatically fall off.
Furthermore, a right angle 12 is milled in the area of the recess 10 on one of the clamping parts 5, and an edge matching this right angle is formed on the magnet 11. The arrangement of the right angle 12 and the edge is convenient for simply, conveniently and quickly positioning the clamping piece 5 in the gap 10, and the assembly convenience of the invention is improved.
Preferably, the tilted hole 13 is a through hole, and the axis of the through hole is perpendicular to the axis of the whole ring.
Example 3
As shown in fig. 1 and 2, a spacer 14 is provided between the spring 8 and the sleeve 3, and the spring 8 abuts against the end cap 6 through the spacer 14.
Example 4
The arrangement for the righting wing is as follows:
as shown in fig. 1 and 2, two sets of straightening wing sets are arranged along the axis of the sleeve 3, each set of straightening wing set includes three straightening wings 2, and the two sets of straightening wings are uniformly distributed along the circumference of the sleeve 3 in a staggered manner.
Further, as shown in fig. 3, the straightening wing 2 is in an isosceles trapezoid plate-shaped structure, and the surface of the lower bottom thereof is connected with the sleeve 3 into a whole.
Example 5
The well cementation method based on the well cementation tool comprises the following steps:
s1, lowering the casing string provided with the centralizer by the drilling tool;
s2, connecting a circulation pipeline and a cementing pipeline; firstly, using circulating drilling fluid to impact mud cakes on a well wall until the pressure of a circulating pump is stable; then pumping into isolating liquid to isolate drilling liquid and cement slurry to avoid mixing slurry
S3, injecting cement slurry, and sealing an annular space between the casing and the well wall;
s4, after the cement slurry is injected, putting a rubber plug into the opening of the casing, and pressurizing by using the displacement fluid.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The well cementation tool for oil and gas exploitation operation comprises a casing (1) provided with a centralizer, and is characterized in that the centralizer comprises a spring (8), a stop component and a sleeve (3) with a centralizing wing (2), wherein the spring (8), the stop component and the sleeve (3) are all sleeved on the casing (1), the two stop components are an upper stop component and a lower stop component respectively, the top end of the sleeve (3) is matched with the upper end of the outer circumferential surface of the casing (1) in an upward stop mode through the upper stop component, and the bottom end of the sleeve (3) is matched with the lower end of the outer circumferential surface of the casing (1) in a downward stop mode through the lower stop component;
the sleeve (1) is provided with a clamping groove (4) at the position opposite to the stop component;
the spring (8) is sleeved on the sleeve (3) and is positioned between the lower stop component and the sleeve (3);
the stop assembly comprises a clamping piece (5) and an end cap sleeve (6) sleeved on the sleeve (1), the clamping piece (5) is positioned in an inner hole of the end cap sleeve (6), one side of the clamping piece (5) can be inserted into the clamping groove (4) by moving along the radial direction of the sleeve (1), and the other side of the clamping piece is attached to the inner wall of the end cap sleeve (6);
in the upper stop assembly, one end of the end cap (6) is in contact with the sleeve (3), and the other end of the end cap is in stop fit with the clamping piece (5);
in the lower stop assembly, the end head sleeve (6) is in contact with the sleeve (3) through the spring (8), and the end head sleeve (6) of the lower stop assembly is pushed to compress the spring, so that the clamping piece (5) in the end head sleeve (6) of the lower stop assembly can be integrally exposed.
2. The well cementation tool for oil and gas exploitation operation as claimed in claim 1, wherein the clamp groove (4) extends along the circumferential direction of the casing (1), the clamp piece (5) is of a semi-circular structure, the inner circumferential surface of the clamp piece is inserted into the clamp groove (4), and the outer circumferential surface of the clamp piece is attached to the inner wall of the end head sleeve (6).
3. The cementing tool for oil and gas exploitation operation according to claim 2, wherein the slot (4) is an annular slot, and the two clamping pieces (5) are assembled into an integral ring in the end head sleeve (6).
4. The well cementation tool for oil and gas exploitation operation according to claim 3, wherein a socket (7) is arranged on the end face of the sleeve (3) in stop fit with the clamping piece (5), and one end of the whole ring protrudes outwards to form a socket (9) matched with the socket (7).
5. The well cementation tool for oil and gas exploitation operation according to claim 3, wherein a notch (10) is milled on the outer circumferential surface of the whole ring and located at the joint part of the two clamping pieces (5), a magnet (11) is arranged in the notch (10), the two clamping pieces (5) are magnetically attracted by the magnet (11), and a tilted hole (13) is arranged on one side, far away from the axis of the whole ring, of the magnet (11).
6. Cementing tool for oil and gas production operations according to claim 5, characterized in that a right angle (12) is milled in the area of the indentation (10) on one of the clamping elements (5), and that the magnet (11) is provided with an edge matching this right angle.
7. Cementing tool for oil and gas production operations according to claim 5, characterized in that the tilted hole (13) is a through hole, the axis of which is perpendicular to the axis of the whole ring.
8. The well cementation tool for oil and gas exploitation operation according to claim 1, wherein a gasket (14) sleeved on the casing (1) is arranged between the spring (8) and the sleeve (3), and the spring (8) abuts against the end head sleeve (6) through the gasket (14).
9. The well cementation tool for oil and gas exploitation operation according to any one of claims 1 to 8, wherein two sets of the centering wing sets are arranged along the axis of the sleeve (3), each set of the centering wing sets comprises three centering wings (2), and the two sets of the centering wings are uniformly distributed along the circumference of the sleeve (3) in a staggered manner.
10. The well cementation tool for oil and gas exploitation operation as claimed in claim 9, wherein the centralizing wing (2) is in an isosceles trapezoid plate structure, and the surface of the lower bottom of the centralizing wing is connected with the sleeve (3) into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110797173.0A CN113431510A (en) | 2021-07-14 | 2021-07-14 | Well cementation tool for oil and gas exploitation operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110797173.0A CN113431510A (en) | 2021-07-14 | 2021-07-14 | Well cementation tool for oil and gas exploitation operation |
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| CN113431510A true CN113431510A (en) | 2021-09-24 |
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| CN202110797173.0A Pending CN113431510A (en) | 2021-07-14 | 2021-07-14 | Well cementation tool for oil and gas exploitation operation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575872A (en) * | 2023-07-11 | 2023-08-11 | 四川尔零石油科技有限公司 | Casing centralizer and production method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201650148U (en) * | 2010-03-03 | 2010-11-24 | 张治国 | Integral casing centralizer |
| CN202891542U (en) * | 2012-10-26 | 2013-04-24 | 苗前 | Curtain retaining ring |
| CN103362460A (en) * | 2013-07-24 | 2013-10-23 | 武汉海王机电工程技术公司 | Dislocated support-type centering guide for cased well logger |
| CN205895710U (en) * | 2016-07-11 | 2017-01-18 | 浙江久友电器科技有限公司 | Fan mesh enclosure structure |
| CN107438296A (en) * | 2016-05-25 | 2017-12-05 | 鄢贵龙 | A kind of easy-to-dismount electric heating floor electrode connecting structure |
| CN206885917U (en) * | 2017-06-14 | 2018-01-16 | 柳迪 | Dustbin |
| CN209195284U (en) * | 2018-09-07 | 2019-08-02 | 中国石油化工股份有限公司 | A kind of centralizer |
| CN209742811U (en) * | 2019-02-27 | 2019-12-06 | 山东华冠能源技术有限公司 | Casing centralizer for drilling |
| CN210781152U (en) * | 2020-02-06 | 2020-06-16 | 王晓艳 | Dustproof set top box capable of winding wires |
| CN112455119A (en) * | 2020-12-21 | 2021-03-09 | 符传若 | Magnetic suction type clamping structure of loose-leaf binder |
-
2021
- 2021-07-14 CN CN202110797173.0A patent/CN113431510A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201650148U (en) * | 2010-03-03 | 2010-11-24 | 张治国 | Integral casing centralizer |
| CN202891542U (en) * | 2012-10-26 | 2013-04-24 | 苗前 | Curtain retaining ring |
| CN103362460A (en) * | 2013-07-24 | 2013-10-23 | 武汉海王机电工程技术公司 | Dislocated support-type centering guide for cased well logger |
| CN107438296A (en) * | 2016-05-25 | 2017-12-05 | 鄢贵龙 | A kind of easy-to-dismount electric heating floor electrode connecting structure |
| CN205895710U (en) * | 2016-07-11 | 2017-01-18 | 浙江久友电器科技有限公司 | Fan mesh enclosure structure |
| CN206885917U (en) * | 2017-06-14 | 2018-01-16 | 柳迪 | Dustbin |
| CN209195284U (en) * | 2018-09-07 | 2019-08-02 | 中国石油化工股份有限公司 | A kind of centralizer |
| CN209742811U (en) * | 2019-02-27 | 2019-12-06 | 山东华冠能源技术有限公司 | Casing centralizer for drilling |
| CN210781152U (en) * | 2020-02-06 | 2020-06-16 | 王晓艳 | Dustproof set top box capable of winding wires |
| CN112455119A (en) * | 2020-12-21 | 2021-03-09 | 符传若 | Magnetic suction type clamping structure of loose-leaf binder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575872A (en) * | 2023-07-11 | 2023-08-11 | 四川尔零石油科技有限公司 | Casing centralizer and production method thereof |
| CN116575872B (en) * | 2023-07-11 | 2023-09-12 | 四川尔零石油科技有限公司 | Casing centralizer and production method thereof |
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Application publication date: 20210924 |