CN208107063U - A kind of drilling well stall proof tool based on cylinder slot body energy storage - Google Patents
A kind of drilling well stall proof tool based on cylinder slot body energy storage Download PDFInfo
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- CN208107063U CN208107063U CN201721436061.8U CN201721436061U CN208107063U CN 208107063 U CN208107063 U CN 208107063U CN 201721436061 U CN201721436061 U CN 201721436061U CN 208107063 U CN208107063 U CN 208107063U
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Abstract
The utility model provides a kind of drilling well stall proof tool based on cylinder slot body energy storage, belongs to petroleum industry machinery field.The drilling well stall proof tool based on cylinder slot body energy storage includes the sequentially coaxially top connection of line connection and inner cavity connection, damper cylinder body, pressure torsion shell and seal from top to bottom；The damping inner sleeve and piston of coaxial line are installed in the inner cavity of the damper cylinder body；The upper end of the damping inner sleeve is connect with top connection, and lower end is inserted into the inner cavity of piston；The inner wall of the damper cylinder body, the lower end surface of top connection, the upper surface of piston, damping inner sleeve outer wall enclose annular space, the cylinder slot body of coaxial line is installed in the annular space, the lower end face contact of the upper end and top connection, lower end are connected by the upper end of bindiny mechanism and piston；The lower end of the piston and the upper end of mandrel connect, and the lower end of the mandrel sequentially passes through damper cylinder body, pressure is stretched out after turning round the inner cavity of shell, seal from the lower end surface of seal.
Description
Technical field
The utility model belongs to petroleum industry machinery field, and in particular to a kind of drilling well based on cylinder slot body energy storage is anti-
Stall tool.
Background technique
Using large scale drill assembly carry out heavy duty service when, the unusual fluctuations of torque be easy to cause drill string self-excited vibration,
Drilling tool twists off, helicoid hydraulic motor viscous motion, leads to the fluctuation for frequently above mentioning drilling tool, pump pressure, influences drilling efficiency.Brill chance gravel layer,
When the stratum that hardness is big and stability is poor, it may occur that serious bouncing of drilling tool generates drill bit and drilling tool and greatly destroys.
Rotary motion when permanent torque stall proof tool will exceed setting torque is converted into linear motion, prevents drill bit drill string
Stall.By storing and discharging the abnormal torque generated in drillng operation, it can be achieved that fluctuating adjustment in real time to drilling torque, i.e.,
" disappear peak load " solves PDC drill bit in hard formation, interlayer and suppresses bouncing of drilling tool, stick slip problems.
Damping energy-storage travelling wave tube is spring at present, and spring is influenced smaller by conditions down-hole, and operating frequency range is wider, weak
Point is damper element compared with fatiguability.To meet underground work requirement, need the coefficient of elasticity of spring big, and tool interior space by
Limit, the rigidity of helical spring are unable to satisfy requirement.Disk spring coefficient of elasticity is big, in order to meet tool mechanics, range demands, needs
It wants multiple groups disc spring to be combined, can just meet the requirements, it is too long to thereby result in tool length, enters well to tool and brings difficulty.
Utility model content
Utility model aims to solve above-mentioned problems existing in the prior art, provide a kind of based on cylinder slot
The drilling well stall proof tool of body energy storage, uses cylinder slot body as damping at the drawbacks of breaking through existing permanent torque stall proof tool
Energy-storage travelling wave tube, it is smaller with being influenced by conditions down-hole, will not be tired, long using the time, damping energy storage effect is good, wants to sealing
Ask the advantages that not high.
The utility model is achieved through the following technical solutions：
A kind of drilling well stall proof tool based on cylinder slot body energy storage, include from top to bottom sequentially coaxially line connection and
The top connection of inner cavity connection, damper cylinder body, pressure turn round shell and seal；
The damping inner sleeve and piston of coaxial line are installed in the inner cavity of the damper cylinder body；
The upper end of the damping inner sleeve is connect with top connection, and lower end is inserted into the inner cavity of piston；
The inner wall of the damper cylinder body, the lower end surface of top connection, the upper surface of piston, the outer wall enclosing of damping inner sleeve are cyclic
Shape space, is equipped with the cylinder slot body of coaxial line in the annular space, the lower end face contact of the upper end and top connection,
Lower end is connected by the upper end of bindiny mechanism and piston；
The lower end of the piston and the upper end of mandrel connect, and the lower end of the mandrel sequentially passes through damper cylinder body, presses torsion outer
Shell, seal inner cavity after from the lower end surface of seal stretch out.
The cylinder slot body is cylinder-like structure, and spiral shape seam is machined with from one end to the other end；
The bindiny mechanism is the thread form protrusion being connected with the cylinder slot body；It is equipped in the upper end of the piston
Thread form groove, thread form protrusion are inserted into thread form groove, and the transmitting for realizing torque is cooperated with thread form groove.
It is equipped with external spiral on one section of the outer wall that the mandrel is located in pressure torsion shell inner cavity, turns round shell in the pressure
Inner wall is equipped with inner spiral groove, and external spiral and inner spiral groove cooperate, and external spiral can move in inner spiral groove, and then mandrel energy
It is enough to be rotated relative to pressure torsion shell.
It is provided with threaded hole on the wall that the pressure turns round shell, which connects the inner spiral groove that pressure turns round shell with outside
It is logical, plug screw is installed in the threaded hole.
The upper end of the top connection is equipped with internal screw thread, is connect by the internal screw thread with top drilling tool, and lower end is equipped with external screw thread
And internal screw thread, it is connect by the external screw thread with damper cylinder body, is connect by the internal screw thread with damping inner sleeve.
The both ends of the damper cylinder body are equipped with internal screw thread, and the upper end is connect by internal screw thread with top connection, and lower end passes through
Internal screw thread and pressure turn round cage connection；
The both ends that the pressure turns round shell are equipped with external screw thread, and the upper end is connect by external screw thread with damper cylinder body, and lower end is logical
External screw thread is crossed to connect with seal；
It is equipped with internal screw thread in the lower end of the piston, is connect by the internal screw thread with mandrel；It is equipped at the internal screw thread tight
Determine screw；
The upper end of the mandrel is equipped with external screw thread, is connect by the external screw thread with piston；The lower end of the mandrel is equipped with outer
Screw thread is connect by the external screw thread with lower drilling tool；
The upper end of the seal is equipped with internal screw thread, turns round shell with pressure by the internal screw thread and is connected.
It is equipped with seal groove and external screw thread in the upper end of the damping inner sleeve, is connect by the external screw thread with top connection, at this
First sealing mechanism is installed, for the sealing between the outer wall of damping inner sleeve and the inner wall of top connection in seal groove；
There are gap between the lower end surface of the damping inner sleeve and the upper surface of mandrel, the gap is less than circle when original state
The maximum distortion distance of column slot body.
Inner wall in the piston upper end is equipped with seal groove, the second sealing mechanism is equipped in the seal groove, for living
Sealing between the inner wall of plug and the outer wall of damping inner sleeve；
It is equipped with seal groove on the outer wall of the piston, third sealing mechanism is installed in the seal groove, is used for
Sealing between the outer wall of piston and the inner wall of damper cylinder body；
It is equipped with seal groove on the inner wall of the piston, the 4th sealing mechanism is installed in the seal groove, is used for
Sealing between the inner wall of piston and the outer wall of mandrel；
The lower end inner wall of the seal is equipped with seal groove, and the 5th sealing mechanism is equipped in the seal groove, is used for
Sealing between the inner wall of seal and the outer wall of mandrel.
First sealing mechanism, the 4th sealing mechanism use O-ring seal, the second sealing mechanism, third sealing mechanism,
5th sealing mechanism uses the sealing mechanism for being suitable for being slidingly sealed.
Compared with prior art, the utility model has the beneficial effects that：
Rotary motion when will exceed setting torque using the utility model drilling well stall proof tool is converted into linear motion,
Prevent drill bit drill string stall.By storing and discharging the abnormal torque generated in drillng operation, it can be achieved that fluctuating to drilling torque
I.e. " disappear peak load " adjustment in real time solves PDC drill bit in hard formation, interlayer and suppresses bouncing of drilling tool, stick slip problems, have the following effects that：
(1) generation for blocking sliding phenomenon is reduced, drilling tool torsional oscillation is avoided, drilling tool is prevented to be broken；
(2) it prevents drill bit from collapsing tooth, damage, improves bit life；
(3) damage of downhole well tool and measurement while-drilling instrument is prevented.
Detailed description of the invention
Fig. 1-1 is drilling well stall proof tool composition figure
Fig. 1-2 is the B-B direction view in Fig. 1-1
Fig. 2-1 is the right view of cylinder slot body
Fig. 2-2 is the main view of cylinder slot body
Fig. 2-3 is the perspective view of cylinder slot body
Fig. 3 is piston figure.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing：
As shown in Fig. 1-1 and Fig. 1-2, a kind of drilling well stall proof based on cylinder slot body energy storage described in the utility model
Tool mainly by top connection 1, the first sealing mechanism 2, damper cylinder body 3, damping inner sleeve 4, damper element 5, the second sealing mechanism 6,
Piston 7, third sealing mechanism 8, the 4th sealing mechanism 9, holding screw 10, plug screw 11, mandrel 12, pressure turn round shell 13, seal
14, it is mounted in drill string pipe string when the 5th sealing mechanism 15 composition uses.The structure of cylinder slot body such as Fig. 2-1 to Fig. 2-3 institute
Show.
Wherein, there is screw thread at the both ends of top connection 1, are connected respectively with top drilling tool, damper cylinder body 3.3 both ends of damper cylinder body have
Screw thread turns round shell 13 with top connection 1, pressure respectively and is connected.Pressure turn round 13 both ends of shell have screw thread, respectively with damper cylinder body 3, seal
14 are connected；Pressure, which is turned round inside shell 13, inner spiral groove, matches with the external spiral of mandrel 12；Pressure, which is turned round on shell 13, threaded hole,
For installing plug screw 11, lubricating oil can be poured into tool by the threaded hole, so that pressure turns round the spiral of shell 13 and mandrel 12
Cooperative movement is more smooth；Enter and block the threaded hole using plug screw 11 before well, prevent lubricating oil overflow and pit shaft in mud into
Enter tool interior.4 upper end of damping inner sleeve is equipped with seal groove and screw thread, and the first sealing mechanism 2 is mounted in the seal groove, plays close
Envelope effect；4 upper end of damping inner sleeve is connected by screw thread with top connection 1, the lower end of damping inner sleeve 4 be inserted into piston 7 it is interior in,.Subtract
The annular space for shaking cylinder 3 and damping inner sleeve 4 installs cylinder slot body 5.5 one end of cylinder slot body is equipped with thread form protrusion, with work
The thread form groove for filling in 7 upper ends matches, for transmitting torque.As shown in figure 3, there is internal screw thread in 7 lower end of piston, it is used for and mandrel 12
It is connected；The bonding strength for reinforcing the screw thread pair by holding screw 10, prevents piston 7 from occurring with mandrel 12 circumferentially displaced；Piston 7
Be respectively arranged with seal groove in the inner circumferential of upper end, the periphery of lower end, for install the second sealing mechanism 6, third sealing mechanism 8,
4th sealing mechanism 9.12 upper end of mandrel is provided with screw thread, for being connect with piston 7, the lower end surface of damping inner sleeve and mandrel it is upper
There are gaps between end face, and when mandrel moves up, cylinder slot body shortens, which also becomes smaller, to prevent cylinder slot
Body deformation is excessive and damage, and the gap should be less than the maximum distortion distance of cylinder slot body when original state, plays a protective role；
There is external spiral at the middle part of mandrel 12, and the inner spiral groove for turning round shell 13 with pressure cooperates；There is screw thread in 12 lower end of mandrel, for under
Portion's drilling tool (drill bit) is connected.14 upper end of seal is provided with screw thread, is connected for turning round shell 13 with pressure；14 lower end inner circumferential of seal
On have seal groove, for install the 5th sealing mechanism 15.First sealing mechanism, the 4th sealing mechanism use O-ring seal
, because this at two without opposite sliding, and the second sealing mechanism, third sealing mechanism, the 5th sealing mechanism need to use
Suitable for the sealing mechanism being slidingly sealed, for example, by using Glais ring etc., because this has opposite sliding at three.
The application method of the utility model is as follows：When wellbore construction, by the anti-mistake of drilling well based on cylinder slot body energy storage
Fast tool is mounted on the drill string of drill bit.When the torque of PDC drill bit reaches certain value, mandrel is turned round by pressure between shell
Screw pair move upwards, reversed by piston driving cylinder slot body, overcome cylinder slot body anti-twisted power, compress cylinder slot
The distance between each seam in body, and then cylinder slot body length is made to shorten.Entire tool is in compressive state, entire well casing
Column shortens (storage torque energy).At this moment drill bit can gradually be lifted from shaft bottom, until drill bit returns to original rotation speed.When
When the torque of drill bit is reduced, the spacing of each seam is restored in cylinder slot body, by piston, pushes mandrel by turning round shell with pressure
Between screw pair move downward, discharge torque energy, maintain the normal drilling well of drill bit.
The key of the drilling well stall proof tool is cylinder slot body, is that spiral shape seam, the material are processed in cylindrical material
Material requires high intensity, and is able to bear multiple reciprocal transformation.Diameter, outer diameter are by drilling well stall proof tool in cylinder slot body
Specification determines, specifically, is limited by the outer diameter of the internal diameter of damper cylinder body, damping inner sleeve；Head number, the seam of cylinder slot body spiral seam
Width, screw pitch depend on duty requirements, can freely adjust.
The utility model uses cylinder slot body as damping energy-storage travelling wave tube, have influenced by conditions down-hole it is smaller, no
The advantages that meeting is tired, long using the time, and damping energy storage effect is good, not high to seal request.
Above-mentioned technical proposal is a kind of embodiment of the utility model, for those skilled in the art,
On the basis of the utility model discloses principle, it is easy to make various types of improvement or deformation, be not limited solely to this reality
The structure described in novel above-mentioned specific embodiment, thus it is previously described only preferred, and it is not restrictive
Meaning.
Claims (7)
1. a kind of drilling well stall proof tool based on cylinder slot body energy storage, it is characterised in that：It is described to be stored up based on cylinder slot body
The drilling well stall proof tool of energy includes the sequentially coaxially top connection of line connection and inner cavity connection, damper cylinder body, pressure torsion from top to bottom
Shell and seal；
The damping inner sleeve and piston of coaxial line are installed in the inner cavity of the damper cylinder body；
The upper end of the damping inner sleeve is connect with top connection, and lower end is inserted into the inner cavity of piston；
The outer wall enclosing of the inner wall of the damper cylinder body, the lower end surface of top connection, the upper surface of piston, damping inner sleeve circularizes sky
Between, the cylinder slot body of coaxial line, the lower end face contact of the upper end and top connection, lower end are installed in the annular space
It is connected by the upper end of bindiny mechanism and piston；
The lower end of the piston and the upper end of mandrel connect, and the lower end of the mandrel sequentially passes through damper cylinder body, pressure turns round shell, close
It is stretched out after sealing the inner cavity of body from the lower end surface of seal；
The cylinder slot body is cylinder-like structure, and spiral shape seam is machined with from one end to the other end；
The bindiny mechanism is the thread form protrusion being connected with the cylinder slot body；Thread form is equipped in the upper end of the piston
Groove, thread form protrusion are inserted into thread form groove, and the transmitting for realizing torque is cooperated with thread form groove.
2. the drilling well stall proof tool according to claim 1 based on cylinder slot body energy storage, it is characterised in that：Described
Mandrel is located at one section of the outer wall that pressure is turned round in shell inner cavity and is equipped with external spiral, is equipped with interior spiral shell on the inner wall that the pressure turns round shell
Spin slot, external spiral and inner spiral groove cooperate, and external spiral can move in inner spiral groove, and then mandrel being capable of opposite pressure torsion shell
It is rotated.
3. the drilling well stall proof tool according to claim 2 based on cylinder slot body energy storage, it is characterised in that：Described
It is provided with threaded hole on the wall of pressure torsion shell, which will press the inner spiral groove for turning round shell to be connected to outside, in the threaded hole
Plug screw is inside installed.
4. the drilling well stall proof tool according to claim 3 based on cylinder slot body energy storage, it is characterised in that：On described
The upper end of connector is equipped with internal screw thread, is connect by the internal screw thread with top drilling tool, and lower end is equipped with external screw thread and internal screw thread, by this
External screw thread is connect with damper cylinder body, is connect by the internal screw thread with damping inner sleeve；
The both ends of the damper cylinder body are equipped with internal screw thread, and the upper end is connect by internal screw thread with top connection, and lower end passes through interior spiral shell
Line and pressure turn round cage connection；
The both ends that the pressure turns round shell are equipped with external screw thread, and the upper end is connect by external screw thread with damper cylinder body, and lower end passes through outer
Screw thread is connect with seal；
It is equipped with internal screw thread in the lower end of the piston, is connect by the internal screw thread with mandrel；Clamp screw is equipped at the internal screw thread
Nail；
The upper end of the mandrel is equipped with external screw thread, is connect by the external screw thread with piston；The lower end of the mandrel is equipped with external screw thread,
It is connect by the external screw thread with lower drilling tool；
The upper end of the seal is equipped with internal screw thread, turns round shell with pressure by the internal screw thread and is connected.
5. the drilling well stall proof tool according to claim 4 based on cylinder slot body energy storage, it is characterised in that：Described
The upper end of damping inner sleeve is equipped with seal groove and external screw thread, is connect by the external screw thread with top connection, is equipped in the seal groove
First sealing mechanism, for the sealing between the outer wall of damping inner sleeve and the inner wall of top connection；
There are gap between the lower end surface of the damping inner sleeve and the upper surface of mandrel, the gap is cut less than cylinder when original state
Stitch the maximum distortion distance of body.
6. the drilling well stall proof tool according to claim 5 based on cylinder slot body energy storage, it is characterised in that：Described
The inner wall of piston upper end is equipped with seal groove, the second sealing mechanism is equipped in the seal groove, inner wall and damping for piston
Sealing between the outer wall of inner sleeve；
It is equipped with seal groove on the outer wall of the piston, third sealing mechanism is installed in the seal groove, is used for piston
Outer wall and damper cylinder body inner wall between sealing；
It is equipped with seal groove on the inner wall of the piston, the 4th sealing mechanism is installed in the seal groove, is used for piston
Inner wall and mandrel outer wall between sealing；
The lower end inner wall of the seal is equipped with seal groove, the 5th sealing mechanism is equipped in the seal groove, for sealing
Sealing between the inner wall of body and the outer wall of mandrel.
7. the drilling well stall proof tool according to claim 6 based on cylinder slot body energy storage, it is characterised in that：Described
One sealing mechanism, the 4th sealing mechanism use O-ring seal, and the second sealing mechanism, third sealing mechanism, the 5th sealing mechanism are adopted
With the sealing mechanism for being suitable for being slidingly sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721436061.8U CN208107063U (en) | 2017-11-01 | 2017-11-01 | A kind of drilling well stall proof tool based on cylinder slot body energy storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721436061.8U CN208107063U (en) | 2017-11-01 | 2017-11-01 | A kind of drilling well stall proof tool based on cylinder slot body energy storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208107063U true CN208107063U (en) | 2018-11-16 |
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ID=64130373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721436061.8U Active CN208107063U (en) | 2017-11-01 | 2017-11-01 | A kind of drilling well stall proof tool based on cylinder slot body energy storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208107063U (en) |
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2017
- 2017-11-01 CN CN201721436061.8U patent/CN208107063U/en active Active
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