CN202249764U - Deflection-preventing and fast drilling equipment for completion of deep well - Google Patents
Deflection-preventing and fast drilling equipment for completion of deep well Download PDFInfo
- Publication number
- CN202249764U CN202249764U CN2011203710292U CN201120371029U CN202249764U CN 202249764 U CN202249764 U CN 202249764U CN 2011203710292 U CN2011203710292 U CN 2011203710292U CN 201120371029 U CN201120371029 U CN 201120371029U CN 202249764 U CN202249764 U CN 202249764U
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- China
- Prior art keywords
- guide rod
- spiral guide
- cutting
- spiral
- cutting tube
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- Expired - Fee Related
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Abstract
The utility model discloses deflection-preventing and fast drilling equipment for completion of a deep well. Cutting alloy blocks are arranged on the outer surface of the front part of a cutting cylinder, a guide head is connected with the front end of the cutting cylinder, the cutting cylinder is rotatablely sleeved on the inner wall face of an outer cylinder, a spiral guide rod is arranged in an inner cavity of the outer cylinder, the rear part of the spiral guide rod is connected with the outer cylinder, four left-handed helixes are uniformly distributed on the outer surface of the spiral guide rod and are in matching transmission with the spiral guide rod, and a nut internally provided with four spiral grooves is sleeved on the spiral guide rod and is fixed on the inner wall face of the cutting cylinder. The deflection-preventing and fast drilling equipment can quickly solve the problem of lower sleeve pipe blocking caused by diameter shrinkage of a borehole and has the characteristics of simple structure and convenience for operation.
Description
Technical field
The utility model relates to deep-well and bores completion system, particularly oil deep-well, ultradeep well completion setting of casing special equipment.
Background technology
In deep-well, ultradeep well completion setting of casing process, the shale hydration expansion often occurs and cause hole shrinkage even cave-in, cause to cause setting of casing to be hampered.Because of receiving the restriction of well cementation mode and the limitation of the intensity of casing string own; Casing string can not rotate; Conventional processing mode is descended drill bit reaming, drifting again after only tripping out casing string; And then setting of casing again, wasted great amount of manpower and material resources, and the final completion of heavy duty service has been increased risk.
The utility model content
The purpose of the utility model provide a kind of easy and simple to handle, can guarantee that anti-tiltedly the setting soon of deep-well completion that casing string is lowered to smoothly is equipped with.
This novel purpose is achieved in that anti-tiltedly the setting soon of a kind of deep-well completion is equipped with, and on the cutting tube forward outer surface cutting alloy piece is arranged, and guide head is connected cutting tube front end; The cutting tube is enclosed within on the outer tube inner wall face rotationally; Spiral guide rod places outer tube inner chamber, and the spiral guide rod rear portion is connected with urceolus, and the spiral guide rod external surface is uniformly distributed with four left-handed spirals; Cooperate transmission with spiral guide rod, four spiral fluted nut sleeve arranged on spiral guide rod in it, nut is fixed on the cutting tube internal face.
At cutting tube front end, the spiral guide rod rear portion is connected with urceolus through screw thread above-mentioned guide head through screwed connection.
Be positioned at nut the place ahead in the above-mentioned cutting tube and there are front apron and backboard in the rear through screwed connection respectively.
Above-mentioned spiral guide rod is connected with buffer screw on the rear portion.
The helical angle of four spirals on the above-mentioned spiral guide rod is 30 degree.
In the construction when setting of casing is hampered; It is descending only need to press down the spiral guide rod that the urceolus of this equipment is connected with urceolus; Nut produces rotation, and the cutting tube that is connected with nut produces rotation thereupon, utilizes the cutting tube to go up the cutting alloy piece (tungsten carbide) of weldering system; The fast processing sleeve pipe problem that is hampered guarantees that casing string is lowered to smoothly.
Compared with prior art, the beneficial effect of the utility model is:
1, this equipment can fast processing hole shrinkage causes the setting of casing problem that is hampered, and guarantees that casing string is lowered to smoothly, avoids the sleeve pipe back that is hampered to work reaming, has practiced thrift cost, has reduced construction risk.
2, this equipment does not influence former completion casing post, and is simple, convenient.
3, spiral guide rod and nut adopt four left-hand screw lines to cooperate, and the helical angle of this spiral is selected 30 ° for use, calculate through theoretical, when pressing down 50KN, can produce the moment of torsion of 2835NM.
Description of drawings
Fig. 1 is the structure chart of the utility model when carrying to extreme position on the spiral guide rod.
Fig. 2 is the structure chart of spiral guide rod the utility model when pressing to extreme position.
Fig. 3, Fig. 4, Fig. 5 are respectively the sectional drawings along A-A line, B-B line and C-C line shown in Figure 1.
Fig. 6 is the sectional drawing of spiral guide rod shown in Figure 1.
Fig. 7 is the profile that the helix part is arranged on the spiral guide rod shown in Figure 6.
Fig. 8, Fig. 9, Figure 10 are respectively front view, right view and the profiles of nut shown in Figure 1.
The specific embodiment
Fig. 1, Fig. 2 illustrate, and anti-tiltedly the setting soon of this deep-well completion is equipped with, and on cutting tube 2 forward outer surface cutting alloy piece are arranged, and cutting tube 2 inner chambers are equipped with turbine assembly 11, and guide head 1 is connected cutting tube 2 front ends, and the drilling fluid tap is arranged on the guide head 1; Cutting tube 2 is enclosed within on urceolus 9 internal faces rotationally, and is provided with sealing ring between the two; Spiral guide rod 8 places urceolus 9 inner chambers, and spiral guide rod 8 rear portions are connected with urceolus 9, and spiral guide rod is that hollow tubular body, its external surface are uniformly distributed with four left-handed spirals; Cooperate transmission with spiral guide rod, have four spiral fluted nuts 6 to be enclosed within on the spiral guide rod 8 in it, nut 6 is fixed on cutting tube 2 internal faces (referring to Fig. 3, Fig. 4, Fig. 5).Between urceolus and the cutting tube running clearance is arranged.At cutting tube 2 front ends, spiral guide rod 8 rear portions are connected with urceolus 9 through screw thread guide head 1 through screwed connection; On nut 6 end faces ratchet is arranged; Be fixed with ratchet 5 on cutting tube 2 inwalls, the ratchet that is meshed with the end face ratchet of nut 6 is arranged on ratchet 5 end faces.Ratchet via pins 4 is fixed on the cutting tube.Be positioned at nut 6 the place aheads in the cutting tube 2 and through screwed connection front apron 3 and backboard 7 arranged respectively with the rear.
Referring to Fig. 8, Fig. 9, Figure 10, be evenly equipped with four helicla flutes on nut 6 holes, manufacture with the spiral of spiral guide rod.The nut end face (see figure 8) has ratchet, and this ratchet is meshed with ratchet end face ratchet.Nut end face ratchet and ratchet are engagement among Fig. 2, and nut is withstood by backboard.Nut end face ratchet and ratchet are disengaged position among Fig. 1, and nut is withstood by front apron.The design of ratchet cause as preventing cutting tube reverse (not according to a design direction) rotation other everywhere screw thread (all being the dextrorotation screw thread) thread off.
Referring to Fig. 6, Fig. 7, spiral guide rod is connected with buffer screw 10 on 8 rear portions.The helical angle of four spirals on the spiral guide rod 8 is 30 degree.
Claims (5)
1. anti-tiltedly the setting soon of deep-well completion is equipped with, and it is characterized in that, on cutting tube (2) forward outer surface the cutting alloy piece arranged, and guide head (1) is connected cutting tube (2) front end; Cutting tube (2) is enclosed within on urceolus (9) internal face rotationally; Spiral guide rod (8) places urceolus (9) inner chamber, and spiral guide rod (8) rear portion is connected with urceolus (9), and the spiral guide rod external surface is uniformly distributed with four left-handed spirals; Cooperate transmission with spiral guide rod, have four spiral fluted nuts (6) to be enclosed within on the spiral guide rod (8) in it, nut (6) is fixed on cutting tube (2) internal face.
2. anti-tiltedly the setting soon of deep-well completion according to claim 1 is equipped with, and it is characterized in that, at cutting tube (2) front end, spiral guide rod (8) rear portion is connected with urceolus (9) through screw thread said guide head (1) through screwed connection.
3. anti-tiltedly the setting soon of deep-well completion according to claim 2 is equipped with, and it is characterized in that, is positioned at nut (6) the place ahead in the said cutting tin (2) and there are front apron (3) and backboard (7) in the rear through screwed connection respectively.
4. anti-tiltedly the setting soon of deep-well completion according to claim 3 is equipped with, and it is characterized in that said spiral guide rod (8) is connected with buffer screw (10) on the rear portion.
5. be equipped with according to anti-tiltedly the setting soon of the described deep-well completion of the arbitrary claim of claim 1～4, it is characterized in that, the helical angle of four spirals on the said spiral guide rod (8) is 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203710292U CN202249764U (en) | 2011-09-30 | 2011-09-30 | Deflection-preventing and fast drilling equipment for completion of deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203710292U CN202249764U (en) | 2011-09-30 | 2011-09-30 | Deflection-preventing and fast drilling equipment for completion of deep well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249764U true CN202249764U (en) | 2012-05-30 |
Family
ID=46111023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203710292U Expired - Fee Related CN202249764U (en) | 2011-09-30 | 2011-09-30 | Deflection-preventing and fast drilling equipment for completion of deep well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249764U (en) |
-
2011
- 2011-09-30 CN CN2011203710292U patent/CN202249764U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170930 |