CN204960848U - Big latus rectum sand control water conservancy anchor - Google Patents
Big latus rectum sand control water conservancy anchor Download PDFInfo
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- CN204960848U CN204960848U CN201520685729.7U CN201520685729U CN204960848U CN 204960848 U CN204960848 U CN 204960848U CN 201520685729 U CN201520685729 U CN 201520685729U CN 204960848 U CN204960848 U CN 204960848U
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- sand
- leaf spring
- hole
- radial direction
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Abstract
(B, ) the utility model relates to an oil field well repair tool technical field, a big latus rectum sand control water conservancy anchor, it includes body and sand control pipe, the sand control tube socket drops on on the body inner wall, leave annular gap between the outer wall of sand control pipe and the inner wall of first annular groove, the inside and the annular gap intercommunication of body, with be equipped with radial hole on the lateral wall of the corresponding body of first annular groove, be equipped with in the radial hole and follow the gliding fluke of radial hole, there is a leaf spring radial hole's both sides fixed mounting respectively, the leaf spring is pressed on the outer wall of fluke. The utility model has the advantages of reasonable and compact structure, convenient to use, its at the interior wall mounting of body a sand control pipe, the sand control pipe forms big latus rectum with the cooperation of first recess, the sand control pipe has the filterable function of sand control, has solved the problem that the fluke inner chamber advances sand easily and deposits sand, safe and reliable, long service life can used repeatedly, has safe, laborsaving, simple and convenient, efficient characteristics. (B, )
Description
Technical field
the utility model relates to oil well technical field of tools, is a kind of big orifice sand-proof hydraulic anchor.
Background technology
hydraulic anchor is used for fixing the downhole tool of tubing string when being oilfield producing well fracture acidizing, hydraulic anchor can overcome liquid in high-voltage construction and, to the upper top power of tubing string, guarantee the safety of high-voltage construction tubing string and the normal work of packer.At present, in use there are the following problems for hydraulic anchor conventional on the market: existing defects in conventional hydraulic anchor structure, anchor fluke inner chamber is easy to into sand and deposits sand, particularly when hydraulic anchor is applied in high angle hole and horizontal well, hydraulic anchor lies low at horizontal segment, impurity in liquid, reservoir sand and fracturing sand etc. can precipitate, anchor fluke inner chamber enters sand, it is even more serious to deposit sand, affect instrument functional performance, affect anchor fluke during instrument unfreezing to reset, cause hydraulic anchor unfreezing difficulty, even cause overhaul accident, there is potential safety hazard.
Summary of the invention
the utility model provides a kind of big orifice sand-proof hydraulic anchor, overcome the deficiency of above-mentioned prior art, it can effectively solve, and anchor fluke inner chamber that existing hydraulic anchor in use exists is easy to affect when sand deposits sand, instrument unfreezing that anchor fluke resets, unfreezing difficulty, there is the problem of potential safety hazard.
the technical solution of the utility model is realized by following measures: a kind of big orifice sand-proof hydraulic anchor, comprise body and sand-proof pipe, the inwall of body is provided with first ring connected in star, sand-proof pipe is located in first ring connected in star, annular gap is left between the outer wall of sand-proof pipe and the inwall of first ring connected in star, the inside of body is communicated with annular gap, the sidewall of the body corresponding with first ring connected in star is provided with at least one group of radial direction through hole be communicated with annular gap, each group radial direction through hole comprises at least two radial direction through hole along the distribution of body circumference, be provided with in each radial direction through hole one can radially through hole slide anchor fluke, the both sides of each radial direction through hole are installed with a leaf spring respectively, leaf spring is pressed on the outer wall of anchor fluke.
here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
the outer wall of above-mentioned anchor fluke is provided with circle-arc tooth; Or/and the sidewall of anchor fluke is provided with the seal groove that cross section is rectangle, is provided with high-temperature seal ring in seal groove.
the sidewall of above-mentioned body is in axial direction provided with two groups of radial direction through hole, each group radial direction through hole comprises along four uniform radial direction through hole of body circumference.
the body outer wall of the both sides of each radial direction through hole above-mentioned is respectively equipped with first straight trough, the outer wall of anchor fluke is provided with second straight trough corresponding with the first straight trough, the outer end of leaf spring is fixedly mounted on the first straight trough by hold-down screw, and the inner of leaf spring is pressed in the second straight trough; Or/and leaf spring is claw type, the middle part of leaf spring radially protrudes from the outer wall of body.
the outer wall of above-mentioned body is circumferentially evenly equipped with four tanks in axial direction; Or/and the top connection of body is provided with internal thread segment, the lower contact of body is provided with external thread section.
the utility model reasonable and compact in structure, easy to use, it has installed a sand-proof pipe on the inwall of body, sand-proof pipe and the first groove fit form big orifice, the surrounding of sand-proof pipe all can feed liquor, when building the pressure in oil pipe, liquid enters in annular gap by the surrounding of sand-proof pipe, anchor fluke radially stretches out and compresses leaf spring under the effect of liquid, the outer wall clamping internal surface of sleeve pipe of anchor fluke, realize grappling action, prevent downhole tool from producing axial displacement, can be used for the fracturing of sleeve pipe Oil/gas Well, waterpower augmented injection is transformed, hydraulic sand blasting, sectility, or the grappling of the underground work pipe column such as abrasive perforating, when after oil jacket pressure balance, anchor fluke is radially regained under the elastic force effect of leaf spring, removes grappling effect, sand-proof pipe has the function that sand control filters, and solve the problem that anchor fluke inner chamber easily enters sand and deposits sand, safe and reliable, long service life, can reuse, after release, anchor fluke the automatic recovery, is convenient to downhole operations, body outer wall is provided with multiple anchor fluke, increases anchorage force, guarantee the safety of high-voltage construction tubing string and the normal work of packer, there is safe, laborsaving, easy, efficient feature.
Accompanying drawing explanation
accompanying drawing 1 is the main TV structure schematic diagram of the utility model most preferred embodiment.
accompanying drawing 2 is the sectional structure schematic diagram at A-A place in accompanying drawing 1.
accompanying drawing 3 is the sectional structure schematic diagram at B-B place in accompanying drawing 2.
coding in accompanying drawing is respectively: 1 is body, and 2 is sand-proof pipe, and 3 is anchor fluke, and 4 is leaf spring, and 5 is circle-arc tooth, and 6 is seal groove, and 7 is the first straight trough, and 8 is hold-down screw, and 9 is tank, and 10 is internal thread segment, and 11 is external thread section.
Detailed description of the invention
the utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description 2, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as accompanying drawing 1, 2, shown in 3, this big orifice sand-proof hydraulic anchor comprises body 1 and sand-proof pipe 2, the inwall of body 1 is provided with first ring connected in star, sand-proof pipe 2 is located in first ring connected in star, annular gap is left between the outer wall of sand-proof pipe 2 and the inwall of first ring connected in star, the inside of body 1 is communicated with annular gap, the sidewall of the body 1 corresponding with first ring connected in star is provided with at least one group of radial direction through hole be communicated with annular gap, each group radial direction through hole comprises at least two radial direction through hole along the distribution of body 1 circumference, be provided with in each radial direction through hole one can radially through hole slide anchor fluke 3, the both sides of each radial direction through hole are installed with a leaf spring 4 respectively, leaf spring 4 is pressed on the outer wall of anchor fluke 3.The cylindrical shape of body 1 in hollow, the top connection of body 1 is provided with internal thread segment 10, the lower contact of body 1 is provided with external thread section 11, in use, the top connection of body 1 is connected with the circular cone male thread of tubing string by internal thread segment 10, and the lower contact of body 1 is connected with the circular cone box thread of tubing string by external thread section 11.The inwall of body 1 is provided with first ring connected in star, and sand-proof pipe 2 is arranged in first ring connected in star, and sand-proof pipe 2 and the first groove fit form big orifice.The surrounding of sand-proof pipe 2 all can feed liquor.When building the pressure in oil pipe, liquid enters in annular gap by the surrounding of sand-proof pipe 2, anchor fluke 3 radially stretches out and compresses leaf spring 4 under the effect of liquid, the outer wall clamping internal surface of sleeve pipe of anchor fluke 3, realize grappling action, prevent downhole tool from producing axial displacement, can be used for the grappling of the underground work pipe columns such as the fracturing of sleeve pipe Oil/gas Well, waterpower augmented injection transformation, hydraulic sand blasting, sectility or abrasive perforating.When after oil jacket pressure balance, anchor fluke 3 is radially regained under the elastic force effect of leaf spring 4, removes grappling effect.The big orifice sand-proof hydraulic anchor that the utility model provides has following beneficial effect: the width of the annular gap between the outer wall of sand-proof pipe 2 and the inwall of body 1 is at about 0.15mm, therefore, impurity in liquid, reservoir sand and fracturing sand etc. can not enter anchor fluke 3 inner chamber, anchor fluke 3 inner chamber can not enter sand, deposit sand, sand-proof pipe 2 has the function that sand control filters, and solves the problem that anchor fluke 3 inner chamber easily enters sand and deposits sand, safe and reliable, long service life, can reuse; After release, anchor fluke 3 the automatic recovery, is convenient to downhole operations; Body 1 outer wall is provided with multiple anchor fluke 3, increases anchorage force, guarantee the safety of high-voltage construction tubing string and the normal work of packer.
according to actual needs, above-mentioned big orifice sand-proof hydraulic anchor can be made further optimization and/or improvements:
as shown in accompanying drawing 1,2,3, the outer wall of above-mentioned anchor fluke 3 is provided with circle-arc tooth 5.Anchor fluke 3 adopts high strength alloy steel to make, and by special thermal treatment, hardness is quite high, and intensity is large.The outer wall of anchor fluke 3 is provided with some roads circle-arc tooth 5, and the diameter of circle-arc tooth 5 is equal with the internal diameter of supporting sleeve pipe.Circle-arc tooth 5 can increase the frictional force of anchor fluke 3 and internal surface of sleeve pipe, and then increases the anchorage force of this big orifice sand-proof hydraulic anchor, guarantees the safety of high-voltage construction tubing string and the normal work of packer.
as shown in accompanying drawing 1,2,3, the sidewall of above-mentioned anchor fluke 3 is provided with the seal groove 6 that cross section is rectangle, is provided with high-temperature seal ring in seal groove 6.Form ring cavity between internal surface of sleeve pipe and the outer wall of tubing string, sealing ring can prevent the silt particle in ring cavity from entering anchor fluke 3 inner chamber, and anchor fluke 3 inner chamber can not enter sand, deposit sand, improves the sealing of anchor fluke 3.
as shown in accompanying drawing 1,2,3, the sidewall of above-mentioned body 1 is in axial direction provided with two groups of radial direction through hole, each group radial direction through hole comprises along four uniform radial direction through hole of body 1 circumference.Like this, the sidewall of body 1 is just provided with eight anchor flukes 3, anchor fluke 3 quantity is many, increases anchorage force, guarantees the safety of high-voltage construction tubing string and the normal work of packer.
as shown in accompanying drawing 1,2,3, body 1 outer wall of the both sides of each radial direction through hole above-mentioned is respectively equipped with first straight trough 7, the outer wall of anchor fluke 3 is provided with second straight trough corresponding with the first straight trough 7, the outer end of leaf spring 4 is fixedly mounted on the first straight trough 7 by hold-down screw 8, and the inner of leaf spring 4 is pressed in the second straight trough.Leaf spring 4 for installing hold-down screw 8, and then is fixed on body 1 outer wall by hold-down screw 8 by the first straight trough 7, and leaf spring 4 has certain pretightning force, can by anchor fluke 3 in radial direction through hole, and the second straight trough is for installing the inner of leaf spring 4.
as shown in accompanying drawing 1,2, above-mentioned leaf spring 4 is in claw type, and the middle part of leaf spring radially protrudes from the outer wall of body.The leaf spring 4 of claw type has elasticity well, and Stability Analysis of Structures is durable, can improve the reliability of this big orifice sand-proof hydraulic anchor; The middle part of leaf spring is higher than the outer wall of body, and leaf spring can play centralizing function higher than the part of body when going into the well.
as shown in accompanying drawing 1,2,3, the outer wall of above-mentioned body 1 is circumferentially evenly equipped with four tanks 9 in axial direction.Body 1 is provided with four road tanks 9, increases area of passage, be convenient to underground fracture construction operation, there is the effect of sediment outflow simultaneously.
above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (9)
1. a big orifice sand-proof hydraulic anchor, it is characterized in that comprising body and sand-proof pipe, the inwall of body is provided with first ring connected in star, sand-proof pipe is located in first ring connected in star, annular gap is left between the outer wall of sand-proof pipe and the inwall of first ring connected in star, the inside of body is communicated with annular gap, the sidewall of the body corresponding with first ring connected in star is provided with at least one group of radial direction through hole be communicated with annular gap, each group radial direction through hole comprises at least four radial direction through hole along the distribution of body circumference, be provided with in each radial direction through hole one can radially through hole slide anchor fluke, the both sides of each radial direction through hole are installed with a leaf spring respectively, leaf spring is pressed on the outer wall of anchor fluke.
2. big orifice sand-proof hydraulic anchor according to claim 1, is characterized in that the outer wall of anchor fluke is provided with circle-arc tooth; Or/and the sidewall of anchor fluke is provided with the seal groove that cross section is rectangle, is provided with high-temperature seal ring in seal groove.
3. big orifice sand-proof hydraulic anchor according to claim 1 and 2, the sidewall that it is characterized in that body is in axial direction provided with two groups of radial direction through hole, and each group radial direction through hole comprises along four uniform radial direction through hole of body circumference.
4. big orifice sand-proof hydraulic anchor according to claim 1 and 2, the body outer wall that it is characterized in that the both sides of each radial direction through hole is respectively equipped with first straight trough, the outer wall of anchor fluke is provided with second straight trough corresponding with the first straight trough, the outer end of leaf spring is fixedly mounted on the first straight trough by hold-down screw, and the inner of leaf spring is pressed in the second straight trough; Or/and leaf spring is claw type, the middle part of leaf spring radially protrudes from the outer wall of body.
5. big orifice sand-proof hydraulic anchor according to claim 3, the body outer wall that it is characterized in that the both sides of each radial direction through hole is respectively equipped with first straight trough, the outer wall of anchor fluke is provided with second straight trough corresponding with the first straight trough, the outer end of leaf spring is fixedly mounted on the first straight trough by hold-down screw, and the inner of leaf spring is pressed in the second straight trough; Or/and leaf spring is claw type, the middle part of leaf spring radially protrudes from the outer wall of body.
6. big orifice sand-proof hydraulic anchor according to claim 1 and 2, the outer wall that it is characterized in that body is circumferentially evenly equipped with four tanks in axial direction; Or/and the top connection of body is provided with internal thread segment, the lower contact of body is provided with external thread section.
7. big orifice sand-proof hydraulic anchor according to claim 3, the outer wall that it is characterized in that body is circumferentially evenly equipped with four tanks in axial direction; Or/and the top connection of body is provided with internal thread segment, the lower contact of body is provided with external thread section.
8. big orifice sand-proof hydraulic anchor according to claim 4, the outer wall that it is characterized in that body is circumferentially evenly equipped with four tanks in axial direction; Or/and the top connection of body is provided with internal thread segment, the lower contact of body is provided with external thread section.
9. big orifice sand-proof hydraulic anchor according to claim 5, the outer wall that it is characterized in that body is circumferentially evenly equipped with four tanks in axial direction; Or/and the top connection of body is provided with internal thread segment, the lower contact of body is provided with external thread section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685729.7U CN204960848U (en) | 2015-09-07 | 2015-09-07 | Big latus rectum sand control water conservancy anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685729.7U CN204960848U (en) | 2015-09-07 | 2015-09-07 | Big latus rectum sand control water conservancy anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204960848U true CN204960848U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520685729.7U Expired - Fee Related CN204960848U (en) | 2015-09-07 | 2015-09-07 | Big latus rectum sand control water conservancy anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204960848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965951A (en) * | 2019-11-27 | 2020-04-07 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Large-drift-diameter hydraulic anchor and using method thereof |
-
2015
- 2015-09-07 CN CN201520685729.7U patent/CN204960848U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965951A (en) * | 2019-11-27 | 2020-04-07 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Large-drift-diameter hydraulic anchor and using method thereof |
| CN110965951B (en) * | 2019-11-27 | 2024-01-23 | 中国石油天然气集团有限公司 | Large-drift-diameter hydraulic anchor and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20200907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |