CN203626641U - Screw type heavy weight drill pipe - Google Patents
Screw type heavy weight drill pipe Download PDFInfo
- Publication number
- CN203626641U CN203626641U CN201320838661.2U CN201320838661U CN203626641U CN 203626641 U CN203626641 U CN 203626641U CN 201320838661 U CN201320838661 U CN 201320838661U CN 203626641 U CN203626641 U CN 203626641U
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- CN
- China
- Prior art keywords
- joint section
- pipe
- male joint
- female joint
- heavy weight
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005553 drilling Methods 0.000 claims abstract description 34
- 230000007704 transition Effects 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000005465 channeling Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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Abstract
The utility model discloses a screw type heavy weight drill pipe which is an integrated multi-section long and thin straight pipe component. The screw type heavy weight drill pipe comprises a female joint section, a male joint section, a middle pipe, a pipe body and a transition pipe, and the female joint section and the male joint section are arranged at the two ends of the pipe respectively. The outer diameter of the middle pipe is larger than that of the pipe body, the outer diameter of the small end of the transition pipe is larger than that of the pipe body, and the outer diameter of the big end of the transition pipe is equal to that of the female joint section or the male joint section. The female joint section and the male joint section are cylinders identical in outer diameter size, and the outer wall of the female joint section and the outer wall of the male joint section are respectively provided with three to five axial right screw grooves with the rotating direction consistent with that of drill rods. The screw grooves formed in the female joint section and the male joint section have the communication function, the vertically-connected drill rods are communicated conveniently, and the expectance for pressure balance between the drill rods is achieved. In addition, the screw grooves are channels, mud in a well can be discharged out smoothly and conveniently, conditions are created for the continuous well drilling operation, and the well drilling efficiency for a user is greatly improved. The screw type heavy weight drill pipe is especially suitable for drilling a horizontal well and a large-displacement well.
Description
Technical field
The utility model relates to a kind of oil drilling tools, and specifically, the utility model relates to a kind of heavy weight drill pipe of peripheral hardware helical groove.
Background technology
In the last hundred years, oil is one of main energy sources of the mankind, because social required quantity is very large, has verified land and the shallow sea of containing oil and has generally excessively been developed, and easily the petroleum resources of exploitation are day by day exhausted, and this crisis has a strong impact on modern's survival and development.Various countries are in order to obtain more petroleum resources, and conventional way, except strengthening the oil drilling degree of depth, seeks to develop deep-sea oil exactly.Along with the increase of drilling depth, must more high strength requirement be proposed to oil drill rocker, the heavy weight drill pipe that aims at deep-sea, deep-well design is intended to improve intensity, bores deep-well to the high antitorque requirement of drilling rod to meet.The heavy weight drill pipe of prior art mainly improves intensity from two aspects, is first to adopt high-strength material to make the body of rod, and be the thickened drilling rod tube wall of trying one's best on the other hand, to improve anti-twisting property.Although the heavy weight drill pipe of prior art has been widely used in deep-sea, deep-well petroleum drilling well, can realize deep-sea, deep drilling exploration operation.But, in the heavy weight drill pipe drilling operation course of prior art time, have bit freezing problem to occur.The junction that drilling rod is combined with drill collar is one section of cylinder the thickest in drilling rod, and drilling process center tap section outer wall contacts cooperation with the borehole wall, this situation likeness in form blockage structure.Stop up except increasing frictional force, also form the separation take drilling rod as unit, mud occurs be blocked and just may form pressure reduction once respectively save between drilling rod, between drilling rod, pressure reduction is crossed conference and is brought out bit freezing problem, cause drilling well normally not carry out, this problem seriously restricts user's drilling progress, increases drilling cost.
Utility model content
Easily there is the problem of bit freezing in the utility model, propose a kind of spiral heavy weight drill pipe in drilling process mainly for existing heavy weight drill pipe.All establish shallow helical groove at tool joint section outer wall, except not reducing intensity, also do not affect drilling rod clamping, the most important thing is that helical groove has channeling, realize pressure balance between each joint drilling rod, and be conducive to the discharge of mud order.
The utility model is achieved through the following technical solutions technical goal.
Spiral heavy weight drill pipe, it is integrated more piece elongated straight pipe component, comprises the female joint section and the male joint section that are located at respectively two ends, and intervalve, body and transition conduit.Described intervalve external diameter is greater than body external diameter.The small end external diameter of described transition conduit is thicker than body external diameter, holds greatly external diameter to equal female joint section or male joint section external diameter.Its improvements are: described female joint section and male joint section are cylinder, uniform 3～5 the axial right hand helix grooves consistent with drilling rod rotation direction of outer wall.
In said structure, the deep-slotted chip breaker that the lateral cross section of helical groove is dark H=3.0mm～6.0mm.
The utility model compared with prior art, has following good effect:
1, external helical groove on female joint section and male joint section outer wall, simple in structure, make easily;
2, external helical groove on female joint section and male joint section outer wall, more shallow because of the degree of depth, do not reduce drilling rod intensity;
3, the helical groove being located on female joint section and male joint section outer wall has upper and lower channeling, and in well, mud flows in order along helical groove, reaches pressure balanced object between drilling rod, avoids occurring bit freezing problem.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is Figure 1A-A generalized section.
The specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in further detail.
Spiral heavy weight drill pipe shown in Fig. 1, it is integrated more piece elongated straight pipe component, comprises the female joint section 1 and the male joint section 5 that are located at respectively two ends, and intervalve 4, body 3 and transition conduit 2.The spiral heavy weight drill pipe that the present embodiment body 3 outer diameters are 127mm, is positioned at the intervalve 4 in stage casing for adding extra heavy pipe, and its external diameter is 139.7mm, and intervalve 4 external diameters are greater than body 3 external diameter 12.7mm.Described transition conduit 2 is between body 3 and female joint section 1 or male joint section 5, and not etc., small end external diameter is not wherein than the large 3.2mm of body 3 external diameter for two ends external diameter, and holding greatly external diameter is 168.3mm, and this size equals female joint section 1 or male joint section 5 external diameters.Described female joint section 1 is the cylinder that outside dimension is identical with male joint section 5, it is the thickest section of drilling rod, in drilling process, its outer wall directly contacts cooperation with the borehole wall, in order to reduce contact area and the frictional force of tool joint box section 1 and male joint section 5 outer walls and the borehole wall, the present embodiment is on female joint section 1 and male joint section 5 outer walls, uniform 3 axial right hand helix grooves 1.1 consistent with drilling rod rotation direction, the deep-slotted chip breaker that these helical groove 1.1 lateral cross section are dark H=4mm.The shallow helical groove 1.1 being located on female joint section 1 and male joint section 5 outer walls has channeling, is convenient to the communication that is connected up and down between drilling rod, easily reaches pressure balanced expection between each drilling rod.In addition, helical groove 1.1 is passages, is conducive to mud order in well and discharges, and has created good condition for continuing drillng operation, is greatly conducive to user and improves drilling efficiency.
The utility model arranges helical groove 1.1 quantity, the external diameter of Main Basis female joint section 1 or male joint section 5 is determined, the arc helical groove 1.1 of 3 dark H=3.0mm of the following configuration of Φ 130mm, the arc helical groove 1.1 of 4 dark H=5.0mm of Φ 130mm～Φ 180mm configuration, Φ 180mm configures the arc helical groove 1.1 of 5 dark H=6.0mm above.Although the drilling rod of different size, not etc., effect is not basic identical for configuration helical groove 1.1 quantity.
Claims (2)
1. a spiral heavy weight drill pipe, it is integrated more piece elongated straight pipe component, comprises the female joint section (1) and the male joint section (5) that are located at respectively two ends, and intervalve (4), body (3) and transition conduit (2); Described intervalve (4) external diameter is greater than body (3) external diameter; The small end external diameter of described transition conduit (2) is thicker than body (3) external diameter, holds greatly external diameter to equal female joint section (1) or male joint section (5) external diameter; It is characterized in that: described female joint section (1) and male joint section (5) are cylinder, uniform 3～5 the axial right hand helix grooves (1.1) consistent with drilling rod rotation direction of outer wall.
2. spiral heavy weight drill pipe according to claim 1, is characterized in that: the deep-slotted chip breaker that the lateral cross section of described helical groove (1.1) is dark H=3.0～6.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320838661.2U CN203626641U (en) | 2013-12-19 | 2013-12-19 | Screw type heavy weight drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320838661.2U CN203626641U (en) | 2013-12-19 | 2013-12-19 | Screw type heavy weight drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626641U true CN203626641U (en) | 2014-06-04 |
Family
ID=50813130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320838661.2U Expired - Lifetime CN203626641U (en) | 2013-12-19 | 2013-12-19 | Screw type heavy weight drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626641U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711440A (en) * | 2013-12-19 | 2014-04-09 | 江苏曙光华阳钻具有限公司 | Spiral type heavy weight drill pipe |
| CN104481505A (en) * | 2014-11-27 | 2015-04-01 | 中国石油天然气集团公司 | Super-long horizontal section pumping-free multiple-butt-joint drilling tool transmission well logging process and butt joint device |
-
2013
- 2013-12-19 CN CN201320838661.2U patent/CN203626641U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711440A (en) * | 2013-12-19 | 2014-04-09 | 江苏曙光华阳钻具有限公司 | Spiral type heavy weight drill pipe |
| CN104481505A (en) * | 2014-11-27 | 2015-04-01 | 中国石油天然气集团公司 | Super-long horizontal section pumping-free multiple-butt-joint drilling tool transmission well logging process and butt joint 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: 20140604 |
|
| CX01 | Expiry of patent term |