CN102606100A - Hydraulic anchor - Google Patents
Hydraulic anchor Download PDFInfo
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- CN102606100A CN102606100A CN2012100544942A CN201210054494A CN102606100A CN 102606100 A CN102606100 A CN 102606100A CN 2012100544942 A CN2012100544942 A CN 2012100544942A CN 201210054494 A CN201210054494 A CN 201210054494A CN 102606100 A CN102606100 A CN 102606100A
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Abstract
The invention discloses a hydraulic anchor, which comprises an anchor body and an anchor fluke with anchor teeth. Ten or twelve anchor fluke holes are arranged on the outer surface of the anchor body and in nonuniform distribution on the outer surface of the anchor body. Each anchor tooth comprises an anchor tooth body and an abrasion-resistant layer covering the outer surface of the anchor tooth body. The hydraulic anchor has the advantages that the hole distribution mode requires shorter anchor body on the premises of fixed internal and external diameters of the anchor body and fixed diameter of the anchor holes, so that raw materials are saved during production; or the diameter of the anchor fluke is increased, the contact area of the anchor fluke with the inner wall of an oil pipe is widened, and accordingly anchoring force is increased and stability is improved. With the oil pipe fixed and prevented from retracting, the less the anchor fluke quantity is, the simpler the procedures are in production and the shorter the production period is, and thereby processing cost can be reduced.
Description
Technical field
The present invention relates to a kind of hydraulic anchor, belong to gas field, oil field oil recovery gas production producing well and use the fixedly down-hole anchor tool of tubing string.
Background technology
Hydraulic anchor is that oil recovery gas production producing well in gas field, oil field is used the fixedly down-hole anchor tool of tubing string.During oil well work oil pumping, fluid column is loaded with on oil pipe and sucker rod and is replaced transfer with the variation of oil pumper up-down stroke, and the oil pipe elongation is shortened, and occurs problems such as oil well pump inefficiency, oil pipe dropout easily.In order to address the above problem, use fixedly oil pipe of hydraulic anchor, can prevent that oil pipe is flexible, and then improve the operating efficiency of oil well pump, avoid oil pipe to thread off.
The two ends of said hydraulic anchor anchor body are provided with second link that has externally threaded first link and have internal thread.The end that connects of internal thread wherein, because that screw thread is positioned at the anchor body is inner, in working links such as transportation, maintenance, internal thread can not sustain damage because of colliding with.But, have externally threaded first link, because screw thread is positioned at the outside of anchor body, in transportation and maintenance processes, is out of shape because of colliding with easily, gap, thereby influences the use that is threaded, cause hidden danger.
Chinese patent document CN2177801Y discloses a kind of hydraulic anchor, it is characterized in that 15 anchor fluke holes of cloth on main body, step 3 holes in the vertical body axial plane; The hole vertically is uniformly distributed with 6 rows in main body, each 3 of long row, short rows, alternately; The every row of long row 3 holes, the every row of short row 2 holes, the hole is in staggered distribution.Because hydraulic anchor is furnished with 15 anchor fluke holes on the anchor body in the above-mentioned patent documentation, under the certain prerequisite of the inside and outside diameter of anchor body and anchor hole diameter, anchor fluke quantity is many, and hydraulic anchor anchor body length will correspondingly strengthen, and when processing, has increased raw-material consumption.And anchor fluke quantity is many more, and the operation during processing is more complicated, the production cycle is long more, and processing cost is high.
Chinese patent document CN201865633U discloses a kind of hydraulic anchor; Comprise anchor body and anchor fluke; Said anchor body is provided with nine anchor fluke holes that drill through; Circumferentially be evenly distributed with three groups of anchor fluke hole groups on the said anchor body, every group of said anchor fluke hole by three said anchor body axially on equally distributed anchor fluke hole constitute.The disclosed pattern of the document is single; Three anchor fluke holes in every group the anchor body axially on evenly distribute; This pattern is not the nine hole hydraulic anchors patterns of economy the most, the anchor body axially on wasted certain space, be unfavorable for practicing thrift and produce material.
Chinese patent document CN101628372A discloses a kind of sealing process of stainless steel tube with small diameter, chooses the stainless steel tube of minor diameter, and stainless steel tube is fixedly clamped on corresponding machine; Then one end head being carried out heat softens; Termination after softening forms the sealing termination through pressing and fusing, round end is thrown in the termination of sealing handle, and throws and carries out leakage detection gas again after circle is handled; No gas leak phenomenon is then in the enterprising pipe grinding that works of centerless grinder; Inspection is entirely carried out head draw operation to the non-tight end then, carries out the polished and cleaned oven dry then.Above-mentioned stainless steel tube is mainly used in the temperature pick up field; The purpose of stainless steel tube being thrown the circle processing is to increase sealing effect; And because temperature pick up is widely used in life small household electrical appliances such as soy bean milk making machine, stainless steel tube is thrown circle and is handled the back good looking appearance, is beneficial to sell goods.But the purpose of stainless steel tube being thrown the circle processing is not only for good looking appearance; Stainless steel material is being carried out in the moulding process; Stainless steel is easy to generate burr and influences use, and the stainless steel tube that for example in the family expenses soy bean milk making machine, uses should guarantee can not scratch the user by Yin Maoci.Therefore, the main purpose of throwing the circle processing is also to ensure that stainless steel tube reduces the appearance of burr in moulding processing procedure, reduces roughness, increases fineness.
Chinese patent document CN201513336U discloses a kind of oil well pump pump barrel surface layer structure; Be formed with ni-p alloy coating on oil well pump pump barrel surface; Ni-p alloy coating is the nickel phosphorus solid solution that is formed by nickle atom and phosphorus atoms common deposited; The corrosion resistance of ni-p alloy coating is good, forms stronger chemical bonding between ni-p alloy coating and the pump barrel, improves the adhesion between pump barrel and the ni-p alloy coating.Ni-p alloy coating has good abrasion resistance and self lubricity, is adapted at environmental work under gas field, the oil field oil recovery gas production producing well, can effectively reduce the mechanical wear of oil well pump pump barrel.The working environment of hydraulic anchor is identical with the oil well pump pump barrel; The hydraulic anchor anchor fluke is used for the grappling petroleum pipeline; Anchor tooth interlock petroleum pipeline tube wall, snap-in force can cause mechanical wear to the anchor pitch thread, and ni-p alloy coating goes for protecting hydraulic anchor anchor tooth to reduce mechanical wear equally.
Chinese patent document CN201296441Y discloses a kind of drilling rod and has moulded external-thread protector with steel, is mainly used in the screw thread protection of oil drill rocker.Said protector is hat, comprises the bladder layer of reeded steel skin and threaded plastics, and said protector top end face is provided with handling hole, and the flange at the outer top of said steel passes the bladder layer that handling hole fastens threaded plastics.Above-mentioned drilling rod is moulded external-thread protector with steel and is had the shock proof effect of protection drilling rod external screw thread, but the skin of said protector is steel, and processing cost height and weight are big, use inconvenient.
Summary of the invention
To be solved by this invention is the more high and single problem of hydraulic anchor pattern of processing cost that causes of existing hydraulic anchor cloth hole number, and providing a kind of can cut down finished cost and can satisfy the hydraulic anchor of actual production grappling needs through reasonable cloth hole.
For realizing above-mentioned purpose, the invention provides a kind of hydraulic anchor, comprise anchor body and anchor fluke, said anchor fluke is provided with the anchor tooth, and the external surface of said anchor body is provided with the anchor fluke hole, and said anchor fluke hole is uneven distribution on the external surface of said anchor body; Said anchor fluke hole is nine or 12; Said anchor tooth comprises the wearing layer that anchor tooth body and said this external surface of anchor tooth cover.
Described hydraulic anchor; Said anchor body is provided with nine anchor fluke holes; Nine said anchor fluke holes are six row, three rows and are distributed on the said anchor body, and wherein every row are evenly distributed with two said anchor fluke holes on the odd column, and every row centre position is distributed with a said anchor fluke hole on the even column.
Described hydraulic anchor; Said anchor body is provided with 12 anchor fluke holes; 12 said anchor fluke holes are six row, four rows and are distributed on the said anchor body; Wherein whenever be listed in first row on the odd column and put and be distributed with a said anchor fluke hole, whenever be listed in the 3rd on the even column and arrange and the 4th ranking is put and is distributed with a said anchor fluke hole with second ranking.
Described hydraulic anchor, it is first link that said hydraulic anchor has externally threaded link, the link with internal thread is second link; The surface of said hydraulic anchor link is provided with throws the screw thread that circle was handled.
Described hydraulic anchor has said externally threaded said first link and is provided with thread protector.
Described hydraulic anchor, said wearing layer are nickel-phosphorus wearing layer; The thickness of said nickel-phosphorus wearing layer is 20-40um.
Described hydraulic anchor is 0.2-0.8 μ m through the surface roughness of throwing the round said screw thread of handling.
Described hydraulic anchor, the internal diameter of said thread protector internal thread is slightly less than the external diameter of said first link, and said hydraulic anchor protective device is connected with the said first link interference.
Described hydraulic anchor, said thread protector are elastic protection device.
Described hydraulic anchor, the diameter in said anchor fluke hole is 50mm; The height of said anchor body is 300mm; The interior diameter of said anchor body is 50mm, and external diameter is 114mm; The external diameter of said first link is 69.5mm, and the interior diameter of said second link is 75mm; Distance between the said anchor tooth is 7mm.
Hydraulic anchor of the present invention has following advantage with respect to prior art:
The first, hydraulic anchor of the present invention, the anchor fluke pattern is uneven distribution, the grappling needs of different situations in the time of can satisfying actual production.
The second, hydraulic anchor of the present invention has nine anchor fluke holes, and under the certain prerequisite of the inside and outside diameter of anchor body and anchor hole diameter, the needed anchor body length of pattern that nine hole hydraulic anchors are six row, three rows is little, when processing, saves material.Perhaps increase the anchor fluke diameter, increase the contact area of anchor fluke and petroleum pipeline inwall, anchorage force increases, and improves stability.Oil pipe prevents that anchor fluke quantity is few more under its flexible prerequisite satisfying fixedly, and the operation during processing is simpler, the production cycle is short more, helps cutting down finished cost.
The 3rd; Hydraulic anchor of the present invention has 12 anchor fluke holes, and 12 said anchor fluke holes are six row, four rows and are distributed on the external surface of said anchor body, and wherein every row are evenly distributed with two anchor fluke holes on the odd column; Every row are evenly distributed with two said anchor fluke holes on the even column; Under the certain prerequisite of the inside and outside diameter of anchor body and anchor hole diameter, the needed anchor body length of pattern that 12 hole hydraulic anchors are six row, four rows is little, when processing, saves material.
The 3rd, the operation liquid effects that when operation, pumps in through tubing string makes piston promote the anchor tooth until stinging tightly on tubing wall on piston.Can produce wearing and tearing to the anchor tooth in the interlocking process, scribble wearing layer in the thread surface of hydraulic anchor anchor tooth, can effectively alleviate the wearing and tearing of interlocking to the anchor pitch thread, the fastener anchor oil pipe prolongs application life of anchor tooth.
The 4th, hydraulic anchor of the present invention, hydraulic anchor link thread surface are to have carried out throwing the screw thread that circle is handled, and can not produce burr, and thread surface fineness increases, roughness reduces.In use, hydraulic anchor installs through being threaded with other, and screw thread does not have burr, can not scratch the device inwall, and inwall has been played protective effect, increases the application life of this device.
The 5th, said hydraulic anchor is installed additional thread protector, the hydraulic anchor screw thread is protected, prevent that effectively the hydraulic anchor screw thread is out of shape because of colliding with, gap in links such as transportation, maintenance, favourable being threaded of ensureing hydraulic anchor.Said hydraulic anchor protective device only is installed at hydraulic anchor external screw thread one end; Also need not install protective device additional at hydraulic anchor internal thread one end; Because it is inner that the screw thread of internal thread one end is positioned at the anchor body, in links such as transportation, can not collided with, therefore only be installed at external screw thread one end; Not only can realize protection, and effectively reduce cost the hydraulic anchor screw thread.The material of said hydraulic anchor protective device has certain elasticity, has the lighter advantage of deadweight, and is connected with the external screw thread interference, makes things convenient for installation and removal, simple to operate and be easy to processing.
Description of drawings
For content of the present invention is more clearly understood, below according to a particular embodiment of the invention and combine accompanying drawing, the present invention is done further detailed explanation, wherein,
Fig. 1 is the structural representation of one embodiment of the invention nine hole hydraulic anchors,
Fig. 2 is the structural representation of hydraulic anchor protective device.
Reference numeral is expressed as among the figure: 1-anchor body, 2-anchor fluke hole, 3a-external screw thread, 3b-internal thread, 4-first link, 5-second link, 6-anchor tooth, 7-elastic thread protective device, 7a-elastic thread protective device internal thread.
The specific embodiment
Below will combine accompanying drawing, and use following examples that the present invention is further set forth.
The structure of one embodiment of the invention nine hole hydraulic anchors is as shown in Figure 1; Comprise anchor body 1 and anchor fluke; The external surface of said anchor body 1 is provided with nine anchor fluke holes 2; Nine said anchor fluke holes 2 are six row, three rows and are distributed on the said anchor body 1, and wherein every row are evenly distributed with two said anchor fluke holes 2 on the odd column, and every row centre position is distributed with a said anchor fluke hole 2 on the even column.
Said anchor fluke is provided with anchor tooth 6, and said anchor tooth 6 comprises that anchor tooth body and said this external surface of anchor tooth are coated with the nickel that thickness is 20-40um-phosphorus wearing layer.Nickel-phosphorus wearing layer thickness can be controlled at 25-35um; As preferably, nickel-phosphorus wearing layer thickness is 30um.
The link that said hydraulic anchor has external screw thread 3a is first link 4; Link with internal thread 3b is second link 5; First link 4 with external screw thread 3a is provided with elastic thread protective device 7; The internal diameter of said elastic thread protective device internal thread 7a is slightly less than the external diameter of said first link 4, and said elastic thread protective device 7 is connected with 4 interference of said first link.
The surface of said hydraulic anchor link is provided with throws the screw thread 3 that circle was handled, and its surface roughness is 0.2-0.8 μ m.
The diameter in said anchor fluke hole 2 is 50mm; The height of said anchor body 1 is 300mm; The interior diameter of said anchor body 1 is 50mm, and external diameter is 114mm; The external diameter of said first link 4 is 69.5mm, and the interior diameter of said second link 5 is 75mm; Distance between the said anchor tooth 6 is 7mm.
Because nine hole hydraulic anchors of the present invention are six row, three rows' pattern, this anchor fluke pattern is uneven distribution, the grappling needs of different situations in the time of can satisfying actual production; Under the certain prerequisite of said anchor body 1 inside and outside diameter and said anchor fluke hole 2 diameters, this pattern needed anchor body 1 length when realizing the grappling effect is little, when processing, saves material; Perhaps increase the anchor fluke diameter, increase the contact area of anchor fluke and petroleum pipeline inwall, anchorage force increases, and improves stability; Oil pipe prevents that anchor fluke quantity is few more, when processing, save material, and production process is simple, helps cutting down finished cost under its flexible prerequisite satisfying fixedly.
In use, said hydraulic anchor anchor fluke is promoted to stretch out outside the said hydraulic anchor anchor body 1 by the fluid pressure in the tubing string, and said anchor tooth 6 is engaged on the oil transportation tube wall realizes grappling.Can produce wearing and tearing to said anchor tooth 6 in the interlocking process,, can effectively alleviate the wearing and tearing of interlocking, prolong the application life of said anchor tooth 6 said anchor tooth 6 at nickel-phosphorus wearing layer that anchor tooth body and said this external surface of anchor tooth cladding thickness are 30um.
Said hydraulic anchor link thread surface has carried out throwing circle to be handled, and can not produce burr, burr, and finish increases, roughness reduces, and surface roughness is 0.2-0.8 μ m.In use, hydraulic anchor is threaded through said with other device, and said screw thread can not scratch the device inwall, and inwall has been played protective effect, increases the application life of this device.
Said elastic thread protective device internal thread 7a is connected with 4 interference of said first link; Can realize buffer protection to said external screw thread 3a; Prevent that effectively said external screw thread 3a is out of shape because of colliding with, gap in links such as transportation, maintenance, favourable being threaded of ensureing hydraulic anchor.The material of said elastic thread protective device 7 has certain elasticity, has the lighter advantage of deadweight, and is connected with 4 interference of first link, makes things convenient for installation and removal, simple to operate and be easy to processing.
As the embodiment with 12 anchor holes 2 of the present invention; 12 said anchor holes 2 are six row, four rows and are distributed on the said anchor body 1; Wherein whenever be listed in first row on the odd column and put and be distributed with a said anchor fluke hole 2, whenever be listed in the 3rd on the even column and arrange and the 4th ranking is put and is distributed with a said anchor fluke hole 2 with second ranking.Other structure has nine structures among anchor hole 2 embodiment with above-mentioned, can realize the object of the invention equally, belongs to protection scope of the present invention.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among protection scope of the present invention.
Claims (10)
1. a hydraulic anchor comprises anchor body (1) and anchor fluke, and said anchor fluke is provided with anchor tooth (6), and the external surface of said anchor body (1) is provided with anchor fluke hole (2), and said anchor fluke hole (2) is uneven distribution on the external surface of said anchor body (1); It is characterized in that: said anchor fluke hole (2) is nine or 12; Said anchor tooth (6) comprises the wearing layer that anchor tooth body and said this external surface of anchor tooth cover.
2. hydraulic anchor according to claim 1; It is characterized in that: said anchor body (1) is provided with nine anchor fluke holes (2); Nine said anchor fluke holes (2) are six row, three rows and are distributed on the said anchor body (1); Wherein every row are evenly distributed with two said anchor fluke holes (2) on the odd column, and every row centre position is distributed with a said anchor fluke hole (2) on the even column.
3. hydraulic anchor according to claim 1; It is characterized in that: said anchor body (1) is provided with 12 anchor fluke holes (2); 12 said anchor fluke holes (2) are six row, four rows and are distributed on the said anchor body (1); Wherein whenever be listed in first row on the odd column and put and be distributed with a said anchor fluke hole (2), whenever be listed in the 3rd on the even column and arrange and the 4th ranking is put and is distributed with a said anchor fluke hole (2) with second ranking.
4. according to claim 2 or 3 described hydraulic anchors, it is characterized in that: the link that said hydraulic anchor has external screw thread (3a) is first link (4), and the link with internal thread (3b) is second link (5); The surface of said hydraulic anchor link is provided with throws the screw thread that circle was handled.
5. hydraulic anchor according to claim 4 is characterized in that: said first link (4) with said external screw thread (3a) is provided with thread protector (7).
6. hydraulic anchor according to claim 5 is characterized in that: said wearing layer is nickel-phosphorus wearing layer; The thickness of said nickel-phosphorus wearing layer is 20-40um.
7. said hydraulic anchor according to claim 6 is characterized in that: the surface roughness through throwing the round said screw thread of handling is 0.2-0.8 μ m.
8. hydraulic anchor according to claim 7 is characterized in that: the internal diameter of said thread protector internal thread (7a) is slightly less than the external diameter of said first link (4), and said hydraulic anchor protective device is connected with said first link (4) interference.
9. hydraulic anchor according to claim 8 is characterized in that: said thread protector is an elastic protection device.
10. hydraulic anchor according to claim 9 is characterized in that: the diameter in said anchor fluke hole (2) is 50mm; The height of said anchor body (1) is 300mm; The interior diameter of said anchor body (1) is 50mm, and external diameter is 114mm; The external diameter of said first link (4) is 69.5mm, and the interior diameter of said second link (5) is 75mm; Distance between the said anchor tooth (6) is 7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100544942A CN102606100A (en) | 2012-03-02 | 2012-03-02 | Hydraulic anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100544942A CN102606100A (en) | 2012-03-02 | 2012-03-02 | Hydraulic anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102606100A true CN102606100A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100544942A Pending CN102606100A (en) | 2012-03-02 | 2012-03-02 | Hydraulic anchor |
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| CN (1) | CN102606100A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966321A (en) * | 2012-12-26 | 2013-03-13 | 天津汇铸石油设备科技有限公司 | Hydraulic anchor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090242214A1 (en) * | 2008-03-25 | 2009-10-01 | Foster Anthony P | Wellbore anchor and isolation system |
| CN201513336U (en) * | 2009-07-27 | 2010-06-23 | 梅河口市兴业精密钢管厂 | Oil well pump cylinder surface layer structure |
| CN201865633U (en) * | 2010-11-25 | 2011-06-15 | 乐清市乐吉石油机械厂 | Hydraulic anchor |
| CN201963234U (en) * | 2011-03-07 | 2011-09-07 | 中国石油化工股份有限公司 | Hydraulic anchor with inclined anchor fluke |
| CN202012317U (en) * | 2011-05-05 | 2011-10-19 | 张立显 | Wellbore protection hydraulic anchor |
-
2012
- 2012-03-02 CN CN2012100544942A patent/CN102606100A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090242214A1 (en) * | 2008-03-25 | 2009-10-01 | Foster Anthony P | Wellbore anchor and isolation system |
| CN201513336U (en) * | 2009-07-27 | 2010-06-23 | 梅河口市兴业精密钢管厂 | Oil well pump cylinder surface layer structure |
| CN201865633U (en) * | 2010-11-25 | 2011-06-15 | 乐清市乐吉石油机械厂 | Hydraulic anchor |
| CN201963234U (en) * | 2011-03-07 | 2011-09-07 | 中国石油化工股份有限公司 | Hydraulic anchor with inclined anchor fluke |
| CN202012317U (en) * | 2011-05-05 | 2011-10-19 | 张立显 | Wellbore protection hydraulic anchor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966321A (en) * | 2012-12-26 | 2013-03-13 | 天津汇铸石油设备科技有限公司 | Hydraulic anchor |
| CN102966321B (en) * | 2012-12-26 | 2016-09-28 | 天津汇铸石油设备科技有限公司 | Hydraulic anchor |
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Application publication date: 20120725 |