CN201610730U - Hydraulic expansion shaping device for casing of casing deformation well - Google Patents
Hydraulic expansion shaping device for casing of casing deformation well Download PDFInfo
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- CN201610730U CN201610730U CN2010201110877U CN201020111087U CN201610730U CN 201610730 U CN201610730 U CN 201610730U CN 2010201110877 U CN2010201110877 U CN 2010201110877U CN 201020111087 U CN201020111087 U CN 201020111087U CN 201610730 U CN201610730 U CN 201610730U
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Abstract
The utility model discloses a hydraulic expansion shaping device for a casing of a casing deformation well. The device comprises a high-pressure pump, a hydraulic pipeline, a control assembly, a multi-level hydraulic pusher and a shaper, and is characterized in that the shaper comprises a high-pressure power head and a shaping expansion head; the high-pressure power head is a cylindrical assembly which comprises a cylindrical piston at the upper part, a cylindrical piston rod at the middle part and a conical body at the lower part; the piston is used with the inner cavity of a cylinder body at the high pressure end of the multi-level hydraulic pusher; the shaping expansion head adopts an assembly with an integral structure and comprises a solid casing body at upper part and a plurality of axial claw bodies distributed on the circumference of the lower end of the casing body; the external containing surface of the lower parts of the claw bodies is a conical drum surface, of which the internally connected hole is a conical hole; and the conical hole is matched with the conical body of the high-pressure power head. Compared with the prior art, the utility model is characterized by simple structure, convenient operation, high working efficiency, little damage to the tube body of the casing deformation part of the oil well, etc.
Description
Technical field
The utility model relates to casing deformation well sleeve pipe prosthetic device, exactly is a kind of casing deformation well sleeve pipe hydraulic buckling apparatus for shaping.
Technical background
In the field, oil field, oil well casing be mainly used in the drilling process and completion after to the support of the borehole wall, with guarantee wellbore construction carry out smoothly with completion after the operate as normal of whole oil well.Yet, in actual applications, the part oil well casing can move on the stratum owing to being subjected to, density of earth formations variation or steam injection thermal recovery cause, and all multifactor influences such as expand with heat and contract with cold produce local distortion, show phenomenons such as undergauge, bad break, this phenomenon is referred to as " cover becomes ", and this class oil well is referred to as " casing deformation well ".Because the distortion of casing deformation well directly influences normal oil-recovery operations, even can't descend pump production, therefore, how to solve that to overlap the multiple problem of turning revisionism be the important topic that those skilled in the art face always.Up to the present, the more advanced casing deformation well sleeve pipe restorative procedure of technology of people's proposition is " a hydraulic buckling shaping method ".This method realizes that by the hydraulic buckling apparatus for shaping this device mainly is made up of high-pressure pump, fluid pressure line and control assembly, anchor, multistage hydraulic propeller, reshaper.Wherein, reshaper is made up of shaping head and the guide shoe head that is positioned at its underpart.The shaping head is made up of high voltage power head and shaping expansion-head, the high voltage power head is the cone member, its upper end is connected with the angle of rake high-pressure side piston rod of multistage hydraulic, and the shaping expansion-head is then formed by being nested with at the taper sheath of the monolithic construction of high voltage power nose cone external body and being arranged on this taper sheath also some short cylinder shaping rollers free to rotate.The shaping expansion-head contains the normal inner diameter that circular diameter approaches oil well casing outside the maximum of its big end in top in working order down; The guide shoe head then is arranged on shaping expansion-head bottom, is used to the parts that guide it to move down.Use when the hydraulic buckling apparatus for shaping is installed, high-pressure pump is arranged at aboveground; Anchor is inserted in the casing deformation well sleeve pipe with multistage hydraulic propeller, reshaper and the fluid pressure line that is equipped with mutually with it and the assembly of control assembly, and makes reshaper be positioned at cover change position, down-hole; The course of work of this device is: at first, measuring well is trapped and is become position undergauge size, selects the shaping head of suitable specification according to this; Then, open hydraulic system, and under control block hydraulic unit with control, finish following two procedures successively: make 1, that the formation grappling contacts between anchor and this oil well casing inwall; 2, under the angle of rake thrust of multistage hydraulic, the high voltage power head of shaping head is moved down, force shaping roller cover to oil well casing under the transverse component effect of high voltage power nose cone body of the shaping expansion-head of shaping head to become position tube wall generation radial compression expansion force, make it by the reaming shaping, up to its reaming during to the extreme position set, the hydraulic system pressure release.After this two procedures is finished, need the hydraulic buckling apparatus for shaping be carried to well on the whole by uphole equipment.So far, a reaming shaping overall process promptly comes to an end.So repetitive operation becomes the purpose that the reaming shaping is carried out at the position in the hope of reaching to cover.The subject matter that existing hydraulic buckling apparatus for shaping in use exists is: 1, because it must confirm in advance all that before each shaping the down-hole cover becomes position undergauge size, and apolegamy shaping head, so that in whole well shaping process, need carry repeatedly, tapping compression swelling apparatus for shaping, thereby operate cumbersome; 2, in general, this device is only applicable to the casing deformation well of single size; 3, in reaming shaping process, reshaper contacts into the high-strength extruding of the little roll surface of multipoint mode with the way of contact that cover becomes between the body of position, easily this oil well casing cover is become the position and causes bigger damage.
Summary of the invention
The purpose of this utility model is for people provide a kind of simple in structure, easy to operate, and high efficiency becomes the less casing deformation well sleeve pipe hydraulic pressure apparatus for shaping of position body damage to the oil well cover.
The purpose of this utility model is to realize like this, it comprises high-pressure pump, fluid pressure line and control assembly, multistage hydraulic propeller and reshaper, be characterized in that this reshaper is made up of high voltage power head and shaping expansion-head, the high voltage power head is the cylinder member, this member is made of upper cylinder piston, middle part cylinder piston rod and bottom cone, and this piston and described multistage hydraulic propeller high-pressure side inner chamber of cylinder block match; The shaping expansion-head is the member of monolithic construction, this member constitutes by top entity body with along the some axial corpus unguis of this body lower end circle distribution, female surface is a taper drum face outside this corpus unguis bottom, and connecing the hole in this one is taper hole, and makes it to be complementary with the described cone of high voltage power head.
After the utility model is realized, because it has improved the structure of reshaper, thereby compared with prior art have following advantage: 1, the guide shoe head of cancellation anchor of the prior art and reshaper obtains simplifying thereby make it overall structure; 2, reshaper and oil well cover becomes the expansion extruding way of contact between the body of position and contact by existing pony roll face and change into the contact of pawl face, thereby it becomes the position body to the oil well cover and damage less in reaming shaping process; 3, in whole well reaming shaping process, after once measuring cover change position undergauge size and selected shaping head, can finish whole reaming shaping work, needn't carry, put this device as prior art repeatedly, thereby whole reaming shaping operation is carried out continuously, not only easy to operate, and can increase work efficiency effectively.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a partial schematic diagram of the present utility model
Fig. 3 is this practical hydraulic principle sketch of the present utility model
The specific embodiment
Fig. 1 is a structural representation of the present utility model.As seen from the figure, it comprises fluid pressure line and control assembly, multistage hydraulic propeller 5 and the reshaper that high-pressure pump 1 of the prior art, high voltage power liquid 3 and oil pipe 4 etc. are formed.
The utility model difference with the prior art is:
1, the guide shoe head of cancellation anchor of the prior art and reshaper;
2, this reshaper only is made up of high voltage power head 6 and shaping expansion-head 7.As seen from Figure 2, high voltage power head 6 is the cylinder member, and this member is made of upper cylinder piston, middle part cylinder piston rod and bottom cone, and this piston and described multistage hydraulic propeller high-pressure side inner chamber of cylinder block match; Shaping expansion-head 7 is the member of monolithic construction, this member, this member constitutes by top entity body with along the some axial corpus unguis of this body lower end circle distribution, female surface is a taper drum face outside this corpus unguis bottom, connecing the hole in this one is taper hole, and makes it to be complementary with the described cone of high voltage power head 6.
During the product assembling, the upper end of shaping expansion-head 7 is connected with multistage hydraulic propeller 5 high-pressure side cylinder walls by connector, and the high pressure chest endoporus of high voltage power head 6 upper ends and multistage hydraulic propeller 5 matches, and both slipper seals connect.
Use when installing, high-pressure pump 1 is arranged at aboveground; Multistage hydraulic propeller 5 and reshaper and equipped mutually with it fluid pressure line and the assembly of control assembly are inserted in the casing deformation well sleeve pipe by well head 2, and the fluid pressure line of high-pressure pump with the described assembly that is positioned at the down-hole is communicated with.
Operating principle of the present utility model as shown in Figure 3, as seen from the figure:
It is by high-pressure pump 1, and for example pressure is that 25～32MPa, discharge capacity are 22m
3The high-pressure pump 1 of/h, oil or aqueous medium are injected multistage hydraulic propeller 5 by fluid pressure line, inject the piston upper chamber of high voltage power head 6 through the distributing valve of multistage hydraulic propeller 5, it is descending to promote high voltage power head 6, and the cone that makes high voltage power head 6 acts on shaping expansion-head 7, make it expanded radially, after treating that it finishes the reaming shaping, the valve rod that the piston of high voltage power head 6 just touches distributing valve deflects valve rod, then oil or aqueous medium are injected high voltage power head 6 piston cavity of resorptions by fluid pressure line, promoting piston makes high voltage power head 6 up, when high voltage power head 6 is up to original position, the piston of high voltage power head 6 touches the distributing valve counteracting spring, the valve rod counter-rotating is returned make high voltage power head 6 downstream state, and motion is finished the work so repeatedly.
Claims (1)
1. casing deformation well sleeve pipe hydraulic buckling apparatus for shaping, it comprises high-pressure pump, fluid pressure line and control assembly, multistage hydraulic propeller and reshaper, it is characterized in that this reshaper is made up of high voltage power head and shaping expansion-head, the high voltage power head is the cylinder member, this member is made of upper cylinder piston, middle part cylinder piston rod and bottom cone, and this piston and described multistage hydraulic propeller high-pressure side inner chamber of cylinder block match; The shaping expansion-head is the member of monolithic construction, this member constitutes by top entity body with along the some axial corpus unguis of this body lower end circle distribution, female surface is a taper drum face outside this corpus unguis bottom, and connecing the hole in this one is taper hole, and makes it to be complementary with the described cone of high voltage power head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201110877U CN201610730U (en) | 2010-02-10 | 2010-02-10 | Hydraulic expansion shaping device for casing of casing deformation well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201110877U CN201610730U (en) | 2010-02-10 | 2010-02-10 | Hydraulic expansion shaping device for casing of casing deformation well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610730U true CN201610730U (en) | 2010-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201110877U Expired - Lifetime CN201610730U (en) | 2010-02-10 | 2010-02-10 | Hydraulic expansion shaping device for casing of casing deformation well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201610730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015976A (en) * | 2013-01-16 | 2013-04-03 | 西南石油大学 | Test method for simulating restoration of deformation sleeve under stratum confining pressure |
| CN105569596A (en) * | 2015-12-14 | 2016-05-11 | 中国石油大学(华东) | Deformed casing repairing device |
-
2010
- 2010-02-10 CN CN2010201110877U patent/CN201610730U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015976A (en) * | 2013-01-16 | 2013-04-03 | 西南石油大学 | Test method for simulating restoration of deformation sleeve under stratum confining pressure |
| CN103015976B (en) * | 2013-01-16 | 2015-04-22 | 西南石油大学 | Test method for simulating restoration of deformation sleeve under stratum confining pressure |
| CN105569596A (en) * | 2015-12-14 | 2016-05-11 | 中国石油大学(华东) | Deformed casing repairing device |
| CN105569596B (en) * | 2015-12-14 | 2018-08-17 | 中国石油大学(华东) | A kind of deformed casing prosthetic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101020 |
|
| CX01 | Expiry of patent term |