CN203097716U - Combined drill column device for drilling of directional well - Google Patents
Combined drill column device for drilling of directional well Download PDFInfo
- Publication number
- CN203097716U CN203097716U CN 201320098844 CN201320098844U CN203097716U CN 203097716 U CN203097716 U CN 203097716U CN 201320098844 CN201320098844 CN 201320098844 CN 201320098844 U CN201320098844 U CN 201320098844U CN 203097716 U CN203097716 U CN 203097716U
- Authority
- CN
- China
- Prior art keywords
- drilling
- column device
- directional well
- directional
- drill
- Prior art date
- 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 - Fee Related
Links
Images
Abstract
The utility model relates to a combined drill column device used in the drilling industry of a petroleum and mining exploration directional well, and provides the combined drill column device for drilling of the directional well. The device is characterized in that the device is directly formed through sequential connection of a rock bit, a screw rod drilling tool, a float valve, a centralizer, a non-magnetic drill collar, a clinometer, a non-magnetic drill collar, a jar and a drilling rod from bottom to top. The screw rod drilling tool has a bending degree of 1.5 degrees, and is mainly used for deflecting of the directional well. The float valve is mainly used for preventing blowout accidents during drilling. The outer wall of each non-magnetic drill collar is provided with small steel strips in a welding mode to prevent torsion of a drill column during directional drilling. Theoretical analysis proves that the combined drill column device provided with the non-magnetic drill collars with the outer walls provided with the small steel strips in a welding mode is not prone to twist no matter how large axial pressure fluctuation the device bears during the directional drilling, and the characteristic is achieved in the structure of the device. Therefore, the directional drilling can be safely and rapidly carried out, the drilling cycle is greatly shortened, drilling cost is saved, and the underground drilling column device is novel.
Description
Technical field
The utility model belongs to the Oil-Gas Well Engineering field, is specifically related to a kind of directional well drilling combination drill column device.
Background technology
Because directional well self structure characteristics, the key technology difficult point of its TRAJECTORY CONTROL is that frictional resistance and moment of torsion are big, and the helicoid hydraulic motor tool face angle is difficult to control, and rate of penetration is slow.In order to accelerate helicoid hydraulic motor tool face angle control rate, reduce drilling period in present China directional well drilling, mainly take following several processing mode:
One, adds treated drilling fluid
By in drilling fluid, adding sliding agent at drilling process, reduce frictional resistance and moment of torsion between the drill string and the borehole wall, accelerate helicoid hydraulic motor tool face angle control rate.But because frictional resistance and moment of torsion between the drilling well tubing string and the borehole wall are excessive, if the sliding agent that adds very little, effect is undesirable; It is too many to add sliding agent, and then operating cost strengthens.Especially in evaluation well,, also can directly cause the oil of well logging inaccurate, be difficult to judge layer position, this technology is restricted especially if in the sliding agent that adds crude oil or diesel oil are arranged.
Two, adopt rotary steering
The construction of directional well greatly now after orientation gets into certain depth, can be adopted rotation to lead and finish.But in the operation of directed section, because the rotary steering of " pushing type " is very big to the dependence on stratum, the rotary steering of " sensing formula " is unaccommodated for some stratum.And rotary steering also is in monopolization period, and operation cost is high in the use, and cost is too high.
Three, creep into middle reaming adjustment
The drilling tool of down-hole is owing to produce flexing, cause to produce countless many contact points between bottom drill tool assembly and drill string and the borehole wall, added moment of torsion major part is unloaded by these contact points, cause being added on the helicoid hydraulic motor moment of torsion seldom, if force to add high pulling torque this moment, can make contact point break through the constraint of the borehole wall, the moment of torsion on the helicoid hydraulic motor increases a lot suddenly, and damages very big to helicoid hydraulic motor.So, the timely reaming of a bit of well section that ordinary circumstance will have been bored, the smoothness of finishing well.But there is the defective of following two aspects in it: the diligent reaming in 1 short time, strengthened the risk of drilling tool " self-locking " bit freezing.Though 2 can alleviate frictional resistance and moment of torsion to a certain extent, when drill bit arrives the shaft bottom after each reaming, expend and remove to control again the helicoid hydraulic motor tool face angle for a long time, drilling period can increase a lot.
Summary of the invention
The purpose of this utility model is to provide a kind of directional well drilling simple in structure, esy to use, safe and reliable combination drill column device in order to address the above problem.In the directed drilling process, with this combination drill column device G.I.H, the non-magnetic drill collar that outer wall is welded with little steel bar bears much axial compressions whole drill string that fluctuates and all is difficult for arbitrarily reversing.The purpose that has realized shortening the helicoid hydraulic motor tool face angle control time significantly like this, improved directed drilling efficient and reduce the directed drilling cost.
For achieving the above object, the technical scheme that the utility model adopted is:
The utility model directional well drilling is directly connected to form by rock bit 1, helicoid hydraulic motor 2, float valve 3, centralizer 4, non-magnetic drill collar 5, inclinometer 6, non-magnetic drill collar 7, bumper jar 8 and drilling rod 9 from top to bottom successively with the combination drill column device.Described rock bit 1 is that external diameter is 311.2 millimeters an API unit-type drill head; It is API master screw drilling tools of 244.47 millimeters that described helicoid hydraulic motor 2 has 1.5 ° of cambers, external diameters, is mainly used in the directional well deflecting; Described float valve 3 uses arrow-like floating valve, and external diameter is 203.2 millimeters an API standard float valve, mainly prevents gas blowout accident when drilling well; Described non-magnetic drill collar the 6, the 7th, external diameter are the non-magnetic drill collars of 203.2 millimeters API standard, and its outer wall is welded with little steel bar, 20 centimetres of little steel bar length, and with drill collar outer wall circumference trisection, half meter far away at interval of the little steel bar of every row, drill string reverses when being used for preventing directed drilling; Described centralizer 4 external diameters are 292.1 millimeters, are used for stablizing whole drill string; Described inclinometer 6 external diameters are 203.2 millimeters, are used for the whole well track of real time monitoring; Described bumper jar 8 is mechanical, and external diameter is 196.85 millimeters, is used in unfreezing when in the drilling process bit freezing taking place; Described drilling rod is 127 millimeters an API standard drilling rod.Prove that by theory analysis no matter the non-magnetic drill collar 6,7 that outer wall is welded with little steel bar bears much axial compression fluctuations all is difficult for reversing, and has realized this feature from structure in the utility model.
Design principle of the present utility model:
In the directed drilling operation process, elder generation is with under the combination drill column device lower going-into-well, and the combination drill column device is directly to be connected to form successively from top to bottom by rock bit 1, helicoid hydraulic motor 2, float valve 3, centralizer 4, non-magnetic drill collar 5, inclinometer 6, non-magnetic drill collar 7, bumper jar 8 and drilling rod 9.Described helicoid hydraulic motor 2 has 1.5 ° of cambers, is mainly used in the directional well deflecting; Described float valve 3 uses arrow-like floating valve, mainly prevents gas blowout accident when drilling well; Described non-magnetic drill collar 6,7 outer walls are welded with little steel bar, 20 centimetres of little steel bar length, and with drill collar outer wall circumference trisection, drill string reverses when being used for preventing directional drilling; Described centralizer 4 is used for stablizing whole drill string; Described inclinometer 6 is used for the whole well track of real time monitoring; Described bumper jar 8 is with mechanical, and unfreezing is used when in drilling process bit freezing taking place.For the well of different size, single combination drill column device size can not satisfy the directed drilling construction requirement, the size of the little steel bar of various combination drill string plant bulk and non-magnetic drill collar outer wall welding just is set, up to satisfying the drilling well requirement fully.So just reach the very big shortening drill string tool face angle control time, thereby reduced the purpose of directional well drilling cycle and cost.
The wearing and tearing of long-term use are considered in the setting of the little steel bar of described non-magnetic drill collar outer wall welding on the one hand, need be provided with the diameter of little steel bar greatly a little; If the diameter of little steel bar is provided with too greatly on the other hand, the moment of torsion of whole drill string is too big when can cause rotary drilling, and the size of little steel bar diameter should be set according to different borehole sizes.
This directional well drilling is achieved through the following technical solutions at drilling process with the combination drill column device: (1) at first according to the s own situation of different well sections, and the size of each part of whole combination drill column device is adjusted; (2) the little steel bar of 20 centimeter length will be welded with on the non-magnetic drill collar outer wall in the combination drill column device, little steel bar is with the outer wall trisection, half meter at interval is far away between the little steel bar of every row, reaches the very big shortening drill string tool face angle control time, thereby reduces the purpose of directional well drilling cycle and cost.
The beneficial effects of the utility model:
Can find out by above-mentioned structure design, the utility model directional well drilling with the combination drill column device owing to adopted outer wall to be welded with the non-magnetic drill collar of little steel bar, no matter bear much axial compression fluctuations and all be difficult for reversing, when directional drilling, shortened the tool face angle control time of combination drill string greatly.This directional well drilling proves through desk research and on-the-spot the use with the combination drill column device, has easy to use, long service life, safe and reliable, can reduce the directed drilling time, significantly reduce characteristics such as directed drilling cost, simultaneously owing to used bumper jar, avoided directional well drilling with the combination drill column device can't unfreezing behind the bit freezing of down-hole risk.
Description of drawings
Fig. 1 is the main structure schematic diagram of the directional well drilling of the utility model embodiment 1 with the combination drill column device.Fig. 2 is the non-magnetic drill collar vertical view that outer wall is welded with little steel bar.Among the figure: 1 rock bit, 2 helicoid hydraulic motors, 3 float valves, 4 centralizers, 5 non-magnetic drill collars, 6 inclinometers, 7 non-magnetic drill collars, 8 bumper jars, 9 drilling rods.
The specific embodiment
Directional well drilling combination drill column device, it is characterized in that: by rock bit 1, helicoid hydraulic motor 2, float valve 3, centralizer 4, non-magnetic drill collar 5, inclinometer 6, non-magnetic drill collar 7, bumper jar 8 and drilling rod 9, all parts are all selected the API standarized component for use, directly connect to form successively from top to bottom when reality is used.Described rock bit 1 is that external diameter is 311.2 millimeters an API unit-type drill head; It is API master screw drilling tools of 244.47 millimeters that described helicoid hydraulic motor 2 has 1.5 ° of cambers, external diameters, is mainly used in the directional well deflecting; Described float valve 3 uses arrow-like floating valve, and external diameter is 203.2 millimeters an API standard float valve, mainly prevents the gas blowout accident when drilling well; Described non-magnetic drill collar the 6, the 7th, external diameter are the non-magnetic drill collars of 203.2 millimeters API standard, and its outer wall is welded with little steel bar, 20 centimetres of little steel bar length, and with drill collar outer wall circumference trisection, half meter far away at interval of the little steel bar of every row, drill string reverses when being used for preventing directed drilling; Described centralizer 4 external diameters are 292.1 millimeters, are used for stablizing whole drill string; Described inclinometer 6 external diameters are 203.2 millimeters, are used for the whole well track of real time monitoring; Described bumper jar 8 is mechanical, and external diameter is 196.85 millimeters, and unfreezing is used when in drilling process bit freezing taking place; Described drilling rod is 127 millimeters an API standard drilling rod.Prove that by theory analysis no matter the non-magnetic drill collar 6,7 that outer wall is welded with little steel bar bears much axial compression fluctuations all is difficult for reversing, and has realized this feature from structure in the utility model.
This directional well drilling proves through desk research and on-the-spot the use with the combination drill column device, have easy to use, long service life, safe and reliable, can control the tool face angle of helicoid hydraulic motor fast, significantly reduce characteristics such as directed drilling cost, have application value widely.
The undeclared part that relates in the utility model is same as the prior art or adopt prior art to be realized.
Claims (5)
1. the utility model relates to a kind of directional well drilling combination drill column device, it is characterized in that: it is directly connected to form from top to bottom successively by rock bit (1), helicoid hydraulic motor (2), float valve (3), centralizer (4), non-magnetic drill collar (5), inclinometer (6), non-magnetic drill collar (7), bumper jar (8) and drilling rod (9).
2. directional well drilling combination drill column device according to claim 1 is characterized in that: it is API master screw drilling tools of 244.47 millimeters that described helicoid hydraulic motor (2) has 1.5 ° of cambers, external diameters, is mainly used in the directional well deflecting.
3. directional well drilling combination drill column device according to claim 1 is characterized in that: described float valve (3) uses arrow-like floating valve, and its external diameter is 203.2 millimeters an API standard float valve, mainly prevents gas blowout accident when drilling well.
4. directional well drilling combination drill column device according to claim 1, it is characterized in that: described non-magnetic drill collar (6,7) is the non-magnetic drill collar of API standard of 203.2 millimeters of external diameters, its outer wall is welded with little steel bar, 20 centimetres of little steel bar length, with drill collar outer wall circumference trisection, half meter far away at interval of the little steel bar of every row, drill string reverses when being used for preventing directed drilling.
5. directional well drilling combination drill column device according to claim 1 is characterized in that: described bumper jar (8) is mechanical, and external diameter is 196.85 millimeters, is used in unfreezing when in the drilling process bit freezing taking place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098844 CN203097716U (en) | 2013-03-05 | 2013-03-05 | Combined drill column device for drilling of directional well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098844 CN203097716U (en) | 2013-03-05 | 2013-03-05 | Combined drill column device for drilling of directional well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097716U true CN203097716U (en) | 2013-07-31 |
Family
ID=48849126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320098844 Expired - Fee Related CN203097716U (en) | 2013-03-05 | 2013-03-05 | Combined drill column device for drilling of directional well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097716U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194159A (en) * | 2016-08-30 | 2016-12-07 | 安徽惠洲地质安全研究院股份有限公司 | A kind of mine is with boring deviational survey exploration system and measuring method thereof |
| CN111219151A (en) * | 2014-11-24 | 2020-06-02 | 哈里伯顿能源服务公司 | Method and system for assembling sections of a drill string |
-
2013
- 2013-03-05 CN CN 201320098844 patent/CN203097716U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219151A (en) * | 2014-11-24 | 2020-06-02 | 哈里伯顿能源服务公司 | Method and system for assembling sections of a drill string |
| CN106194159A (en) * | 2016-08-30 | 2016-12-07 | 安徽惠洲地质安全研究院股份有限公司 | A kind of mine is with boring deviational survey exploration system and measuring method thereof |
| CN106194159B (en) * | 2016-08-30 | 2023-02-28 | 安徽惠洲地质安全研究院股份有限公司 | Mine inclination measurement while drilling exploration system and measuring method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102587832B (en) | Pressure resistant tool for reducing frictional resistance of horizontal well section | |
| CN103939009B (en) | Wireless while-drilling type air fast drilling combined drilling unit | |
| CN202900044U (en) | Double stabilizer prebuckling dynamics pendulum drilling assembly | |
| CN203097716U (en) | Combined drill column device for drilling of directional well | |
| CN202531042U (en) | Bottom drilling tool combined structure used for coiled tubing drilling or boring <0} | |
| CN102242603A (en) | Bottom drilling tool combination with double stabilizers resisting deviation by using prebuckling dynamics | |
| CN102654035A (en) | Bottom drilling tool combination structure for coiled tubing drilling or drilling | |
| CN202659146U (en) | Double-drilling combined drill structure suitable for drilling operation of oil well and horizontal well | |
| CN205778581U (en) | Alleviate the drill string assembly of directional well slipping drilling backing pressure | |
| CN207847580U (en) | A kind of directional well drilling combination drill column device | |
| CN203570206U (en) | End pressure-bearing type rock bolt reamer | |
| CN203547579U (en) | V-shaped stabilizer for eccentric drilling device | |
| CN204238901U (en) | A kind of cementing tool of combining structure | |
| CN206205778U (en) | A kind of underground is slidingly sealed instrument and its unlimited extended reach drilling device | |
| CN205013042U (en) | From degradation high strength filling pipe | |
| CN203430501U (en) | Combined drilling tool capable of measuring inclination through opened hole | |
| CN205100965U (en) | Well testing pipe column | |
| Gang et al. | Experimental Research on the Technology of Hydra-Jet Sidetracking of Radial Micro-borehole. | |
| CN205000925U (en) | Be applied to water drive assembly among well drilling water conservancy oscillation device | |
| CN204552611U (en) | A kind of forward beam normotopia follower of jumbo | |
| CN202194671U (en) | Deep hole drilling and chiseling system device for deep burial water-rich soft wall rock | |
| CN204060551U (en) | A kind of toughness pottery centralizer | |
| CN103410446A (en) | Reaming inclinometry way-type drilling unit | |
| CN101892811A (en) | Ultrastrong diamond compact bit | |
| CN111691831B (en) | Method for preventing female buckle of large-size borehole stabilizer from losing efficacy |
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: 20130731 Termination date: 20170305 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |