CN104343389A - Directional rotating guide drilling tool - Google Patents
Directional rotating guide drilling tool Download PDFInfo
- Publication number
- CN104343389A CN104343389A CN201410442752.3A CN201410442752A CN104343389A CN 104343389 A CN104343389 A CN 104343389A CN 201410442752 A CN201410442752 A CN 201410442752A CN 104343389 A CN104343389 A CN 104343389A
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- hole
- mandrel
- moushroom valve
- urceolus
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 3
- 238000013517 stratification Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a directional rotating guide drilling tool. The directional rotating guide drilling tool comprises an outer barrel upper section and an outer barrel, wherein a drill stem and a mandrel are sequentially connected to the outer barrel upper section and the outer barrel from the top to the bottom, the drill stem is connected with the mandrel through a hollow cardan joint, the drill stem is in rotating connection with the outer barrel upper section through a cylindrical roller bearing, a pressure relief cavity positioned in the outer barrel is arranged at the lower end part of the drill stem, the pressure relief cavity is communicated with a draining hole in the drill stem, a biasing mechanism and a knuckle bearing assembly which are positioned in the outer barrel are respectively arranged at the upper end part and the middle of the mandrel, the pressure relief cavity is communicated with the biasing mechanism through a guide pipe, and a drill bit is fixedly connected to the lower end of the mandrel. The biasing of the mandrel is realized by an integrated hydraulic cylinder. The use of the tool is not affected by geological stratification, so that stable and higher drift angle buildup can be obtained. Various work states can be realized without lifting the drill.
Description
Technical field
The present invention relates to the drilling tool of the drilling field such as oil, natural gas, particularly a kind of guiding type rotary steering drilling tool.
Background technology
At present, drilling technology is to future developments such as ultradeep well, extended reach well and directional wells, and traditional slidingtype drilling tool can not meet current drilling well demand, and rotary steerable drilling technology is applied gradually as a kind of high-tech drilling technology and develops.
Rotary steerable tool in the market mainly contains the Geo-Pilot etc. of the Power Drive of Schlumberger, the Auto Track of Bake Hughes and Haliburton.The above two belong to pushing type rotary steering drilling tool, and the feature of these two kinds of drilling tools can obtain larger bias force at drill bit place.But because the difference of geological condition and the change of drilling liquid pressure can affect instrument build angle rate, cause well track not round and smooth, wellbore quality and borehole status poor, easily produce down-hole accident.
The Geo-Pilot system of Haliburton belongs to guiding type rotary steering drilling tool, its adopt control that drill stem buckling feature realizes drill axis effectively lead control, its advantage is that build angle rate is determined by instrument itself, not by the impact of formation drilling lithology, successful in soft formation and heterogeneity stratum, but mandrel bears the alternating stresses of high strength, and mandrel easily fatigue failure occurs, and affects life tools.
Summary of the invention
The present invention provides a kind of guiding type rotary steering drilling tool for solving in known technology the technical problem that exists, and this instrument neither affects by geological stratification, can realize again the accurate control of well track.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is: a kind of guiding type rotary steering drilling tool, comprise urceolus and fixing biasing mechanism therein, described biasing mechanism comprises and is sleeved on upper moushroom valve end cap on mandrel and integrated hydraulic cylinder from top to bottom successively; Motor is connected with above described upper moushroom valve end cap, high-pressure chamber is connected with below described upper moushroom valve end cap, the upper moushroom valve be connected with its rotary seal is provided with in described high-pressure chamber, described upper moushroom valve is rotatably connected on described upper moushroom valve end cap by bearing, and the soffit of described upper moushroom valve is connected with the upper surface rotary seal of described integrated hydraulic cylinder; Described high-pressure chamber is communicated with conduits for drilling fluid, the same of moushroom valve is circumferentially provided with a feed liquor through hole and multiple spout hole on described, the outlet of described spout hole is arranged on the periphery of described upper moushroom valve, the import of described spout hole is arranged on the soffit of described upper moushroom valve, and described feed liquor through hole is circular arc elongated hole; Circumferentially be evenly equipped with the hydraulic cylinder of predetermined number at described integrated hydraulic cylinder interior, the center line of the piston rod of described hydraulic cylinder is arranged along the radial direction of described integrated hydraulic cylinder; The liquid pass hole be communicated with described hydraulic cylinder one_to_one corresponding is provided with on described integrated hydraulic cylinder, described liquid pass hole is relative with described spout hole with described feed liquor through hole, the sidewall of described high-pressure chamber is provided with the flowing hole communicated with described spout hole, described urceolus is provided with the discharge orifice communicated with described flowing hole; Moushroom valve is connected with external toothing on described, described external toothing is rotatably connected on described upper moushroom valve end cap, and described external toothing engages with described gear shaft, and described gear shaft is driven by described motor; The piston rod of described hydraulic cylinder is connected by V-type face with locating piece, described locating piece is rotationally connected by oscillating bearing and described mandrel, be respectively equipped with torsional stop and lower torsional stop in the piston rod both sides of described hydraulic cylinder, described upper torsional stop and described lower torsional stop are fixed on described locating piece.
Described biasing mechanism is arranged on the upper end of described mandrel, and the middle part of described mandrel adopts oscillating bearing assembly to be bearing in described urceolus, and the lower end of described mandrel is connected with drill bit; The upper end of described mandrel is connected with the lower end of drill string by hollow universal joint, described drill string and urceolus save and is rotationally connected, the upper end of the lower end that described urceolus saves and described urceolus is affixed, and the upper end that described urceolus saves is connected with upper end cover, is connected with bottom end cover in the lower end of described urceolus; Be provided with conduction hole in the bottom of described drill string, described conduction hole is positioned at pressure release cavity, and described pressure release cavity is fixed in described urceolus, and described drill string is through described pressure release cavity, and the two forms rotary seal and connects; Described conduits for drilling fluid is connected with described pressure release cavity.
Described biasing mechanism is fixed in described outer barrel by described upper moushroom valve end cap or described high-pressure chamber or described integrated hydraulic cylinder.
Described biasing mechanism is fixed in described outer barrel by described integrated hydraulic cylinder.
Described drill string is rotationally connected by cylinder roller bearing and urceolus save.
Described hollow is universal comprises universal-joint fork I, jackshaft and the universal-joint fork II set gradually from top to bottom, described universal-joint fork I and described jackshaft upper end are rotationally connected by cross axle I and the bearing I be arranged on described cross axle I, and described jackshaft lower end and described universal-joint fork II are rotationally connected by cross axle II and the bearing II be arranged on described cross axle II.
Described oscillating bearing assembly comprises the self-aligning bearing be arranged on described mandrel, and the two ends of described self-aligning bearing are respectively provided with a thrust bearing.
The advantage that the present invention has and good effect are:
1) by adopting integrated hydraulic cylinder to realize the biased of mandrel, making this instrument have not by the feature that geological stratification affects, thus can obtain stable build angle rate, realizing the accurate control of well track.
2) by adopting integrated hydraulic cylinder to realize the biased of mandrel, the control of upper moushroom valve realization to integrated hydraulic cylinder is driven by motor, thus different build angle rates and orientation can be obtained, do not need like this to carry in application process to bore and just can realize multiple duty, reach the object of increasing hole angle, drop angle and hold angle.
3) by adopting integrated hydraulic cylinder to realize the biased of mandrel, making full use of drilling liquid pressure, thus enabling this instrument obtain larger building force.
4) application of hollow universal joint can effectively reduce mandrel alternating stresses, improves steering tool application life.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the A-A sectional view of Fig. 2 of the present invention;
Fig. 4 is the lateral view of Fig. 3;
Fig. 5 is the B-B sectional view of Fig. 2 of the present invention;
Fig. 6 is the C-C sectional view of Fig. 2 of the present invention.
In figure: 1, drill string; 2, cylinder roller bearing; 3, urceolus; 4, pressure release cavity; 5, hollow universal joint; 6, conduits for drilling fluid; 7, upper moushroom valve; 8, motor; 9, high-pressure chamber; 10, integrated hydraulic cylinder; 11, piston rod; 12, mandrel; 13, oscillating bearing assembly; 14, drill bit; 15, conduction hole; 16, upper moushroom valve end cap; 17, gear shaft; 18, external toothing; 19, bearing; 20, feed liquor through hole; 21, spout hole; 22, locating piece; 23, oscillating bearing; 24, upper end cover; 25, bottom end cover; 26, liquid pass hole; 27, flowing hole; 28, discharge orifice; 29, upper torsional stop; 30, lower torsional stop, 31, urceolus saves.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 ~ Fig. 6, a kind of guiding type rotary steering drilling tool, comprise urceolus 3 and fixing biasing mechanism therein, described biasing mechanism comprises and is sleeved on upper moushroom valve end cap 16 on mandrel 12 and integrated hydraulic cylinder 10 from top to bottom successively; Motor 8 is connected with above described upper moushroom valve end cap 16, high-pressure chamber 9 is connected with below described upper moushroom valve end cap 16, the upper moushroom valve 7 be connected with its rotary seal is provided with in described high-pressure chamber 9, described upper moushroom valve 7 is sleeved on described upper moushroom valve end cap 16, described upper moushroom valve 7 is rotatably connected on described upper moushroom valve end cap 16 by bearing 19, and the soffit of described upper moushroom valve 7 is connected with the upper surface rotary seal of described integrated hydraulic cylinder 10; Described high-pressure chamber 9 is communicated with conduits for drilling fluid 6, the same of moushroom valve 7 is circumferentially provided with a feed liquor through hole 20 and multiple spout hole 21 on described, the outlet of described spout hole 21 is arranged on the periphery of described upper moushroom valve 7, the import of described spout hole 21 is arranged on the soffit of described upper moushroom valve 7, and described feed liquor through hole 20 is circular arc elongated hole; Circumferentially be evenly equipped with the hydraulic cylinder of predetermined number in described integrated hydraulic cylinder 10 inside, the center line of the piston rod 11 of described hydraulic cylinder is arranged along the radial direction of described integrated hydraulic cylinder 10.The liquid pass hole 26 be communicated with described hydraulic cylinder one_to_one corresponding is provided with on described integrated hydraulic cylinder 10, described liquid pass hole 26 is relative with described spout hole 21 with described feed liquor through hole 20, in the present embodiment, a described feed liquor through hole 20 can cover three described liquid pass holes 26, is that three hydraulic cylinders are supplied with press liquid simultaneously.The sidewall of described high-pressure chamber 9 is provided with the flowing hole 27 communicated with described spout hole 21, the sidewall of described urceolus 3 is provided with the discharge orifice 28 communicated with described flowing hole 27.Moushroom valve 7 is connected with external toothing 18 on described, described external toothing 18 is positioned at the chamber of high-pressure chamber 9, be sleeved on moushroom valve end cap 16, described external toothing 18 is rotatably connected on described upper moushroom valve end cap 16, described external toothing 18 engages with described gear shaft 17, and described gear shaft 17 is driven by described motor 8.The piston rod 11 of described hydraulic cylinder is connected by V-type face with locating piece 22, described locating piece 22 is rotationally connected by oscillating bearing 23 and described mandrel 12, be respectively equipped with torsional stop 29 and lower torsional stop 30 in piston rod 11 both sides of described hydraulic cylinder, described upper torsional stop 29 and described lower torsional stop 30 are fixed on described locating piece 22 respectively.
It is inner that described biasing mechanism can be fixed in described urceolus 3 by described upper moushroom valve end cap 16 or described high-pressure chamber 9 or described integrated hydraulic cylinder 10.Optimum efficiency is inner for described integrated hydraulic cylinder 10 being fixed in described urceolus 3.
In the present embodiment, described biasing mechanism is arranged on the upper end of described mandrel 12, and the middle part of described mandrel 12 adopts oscillating bearing assembly 13 to be bearing in described urceolus 3, and the lower end of described mandrel 12 is connected with drill bit 14; The upper end of described mandrel 12 is connected with the lower end of drill string 1 by hollow universal joint 5, described drill string 1 and urceolus save 31 be rotationally connected, described urceolus saves 31 lower end and the upper end of described urceolus 3 affixed, the upper end that described urceolus saves 31 is connected with upper end cover 24, is connected with bottom end cover 25 in the lower end of described urceolus 3; Be provided with conduction hole 15 in the bottom of described drill string 1, described conduction hole 15 is positioned at pressure release cavity 4, and described pressure release cavity 4 is fixed in described urceolus 3, and described drill string 1 is through described pressure release cavity 4, and the two forms rotary seal and connects; Described conduits for drilling fluid 6 is connected with described pressure release cavity 4.
In such scheme, described drill string 1 is rotatably connected on described urceolus by cylinder roller bearing 2 and saves in 31, and described cylinder roller bearing 2 also can replace with the combination of several bearing.The structure of described hollow universal joint 5 please refer to patent document CN103132926A, comprise universal-joint fork I, jackshaft and the universal-joint fork II set gradually from top to bottom, described universal-joint fork I and described jackshaft upper end are rotationally connected by cross axle I and the bearing I be arranged on described cross axle I, and described jackshaft lower end and described universal-joint fork II are rotationally connected by cross axle II and the bearing II be arranged on described cross axle II.The structure of described oscillating bearing assembly 13 please refer to patent document CN102900364A, comprises the self-aligning bearing be arranged on described mandrel, and the two ends of described self-aligning bearing are respectively provided with a thrust bearing.
Operating principle of the present invention:
Drill string 1 rotates the moment of torsion that produces and acts on by hollow universal joint 5 and mandrel 12 cutting that drill bit 14 realizes rock stratum, drilling fluid is delivered to shaft bottom by the mandrel 12 of the drill string 1 of hollow, hollow universal joint 5, hollow and drill bit 14, and oscillating bearing assembly 13 is the rotating fulcrum of mandrel 12 when biasing mechanism drives.
Drilling fluid in drill string 1 is successively by conduction hole 15, pressure release cavity 4, conduits for drilling fluid 6 and upper moushroom valve end cap 16 enter high-pressure chamber 9, motor 8 drives moushroom valve 7 to rotate by driving the external toothing 18 be meshed with gear shaft 17, by changing the position of the enterprising fluid through-hole 20 of upper moushroom valve 7, control drilling fluid inputs the target hydraulic cylinder in integrated hydraulic cylinder 10, the piston rod 11 of target hydraulic cylinder is stretched out, the piston rod 11 of non-targeted hydraulic cylinder is retracted, thus the outbound course of control integration hydraulic cylinder 10, under the effect of piston rod 11, make mandrel 12 realize drill bit 14 around oscillating bearing assembly 13 rotation be biased, non-targeted hydraulic cylinder is when piston rod 11 is retracted, drilling fluid is wherein successively by liquid pass hole 26, spout hole 21, flowing hole 27 and discharge orifice 28 are delivered to bore hole annulus.
The upper torsional stop 29 of piston rod 11 both sides and lower torsional stop 30 are for the rotation of limited piston bar, and match with the V-type face on the piston rod 11 in integrated hydraulic cylinder 10 generation of piston rod interference when can prevent biased in the V-type face of locating piece 22 simultaneously.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make a lot of form, these all belong within protection scope of the present invention.
Claims (7)
1. a guiding type rotary steering drilling tool, comprises urceolus and fixing biasing mechanism therein, it is characterized in that, described biasing mechanism comprises and is sleeved on upper moushroom valve end cap on mandrel and integrated hydraulic cylinder from top to bottom successively;
Motor is connected with above described upper moushroom valve end cap, high-pressure chamber is connected with below described upper moushroom valve end cap, the upper moushroom valve be connected with its rotary seal is provided with in described high-pressure chamber, described upper moushroom valve is rotatably connected on described upper moushroom valve end cap by bearing, and the soffit of described upper moushroom valve is connected with the upper surface rotary seal of described integrated hydraulic cylinder;
Described high-pressure chamber is communicated with conduits for drilling fluid, the same of moushroom valve is circumferentially provided with a feed liquor through hole and multiple spout hole on described, the outlet of described spout hole is arranged on the periphery of described upper moushroom valve, the import of described spout hole is arranged on the soffit of described upper moushroom valve, and described feed liquor through hole is circular arc elongated hole; Circumferentially be evenly equipped with the hydraulic cylinder of predetermined number at described integrated hydraulic cylinder interior, the center line of the piston rod of described hydraulic cylinder is arranged along the radial direction of described integrated hydraulic cylinder;
The liquid pass hole be communicated with described hydraulic cylinder one_to_one corresponding is provided with on described integrated hydraulic cylinder, described liquid pass hole is relative with described spout hole with described feed liquor through hole, the sidewall of described high-pressure chamber is provided with the flowing hole communicated with described spout hole, described urceolus is provided with the discharge orifice communicated with described flowing hole;
Moushroom valve is connected with external toothing on described, described external toothing is rotatably connected on described upper moushroom valve end cap, and described external toothing engages with described gear shaft, and described gear shaft is driven by described motor;
The piston rod of described hydraulic cylinder is connected by V-type face with locating piece, described locating piece is rotationally connected by oscillating bearing and described mandrel, be respectively equipped with torsional stop and lower torsional stop in the piston rod both sides of described hydraulic cylinder, described upper torsional stop and described lower torsional stop are fixed on described locating piece.
2. guiding type rotary steering drilling tool according to claim 1, it is characterized in that, described biasing mechanism is arranged on the upper end of described mandrel, and the middle part of described mandrel adopts oscillating bearing assembly to be bearing in described urceolus, and the lower end of described mandrel is connected with drill bit; The upper end of described mandrel is connected with the lower end of drill string by hollow universal joint, described drill string and urceolus save and is rotationally connected, the upper end of the lower end that described urceolus saves and described urceolus is affixed, and the upper end that described urceolus saves is connected with upper end cover, is connected with bottom end cover in the lower end of described urceolus; Be provided with conduction hole in the bottom of described drill string, described conduction hole is positioned at pressure release cavity, and described pressure release cavity is fixed in described urceolus, and described drill string is through described pressure release cavity, and the two forms rotary seal and connects; Described conduits for drilling fluid is connected with described pressure release cavity.
3. guiding type rotary steering drilling tool according to claim 1, is characterized in that, described biasing mechanism is fixed in described outer barrel by described upper moushroom valve end cap or described high-pressure chamber or described integrated hydraulic cylinder.
4. guiding type rotary steering drilling tool according to claim 1, is characterized in that, described biasing mechanism is fixed in described outer barrel by described integrated hydraulic cylinder.
5. guiding type rotary steering drilling tool according to claim 2, is characterized in that, described drill string is rotationally connected by cylinder roller bearing and urceolus save.
6. guiding type rotary steering drilling tool according to claim 2, it is characterized in that, described hollow universal joint comprises universal-joint fork I, jackshaft and the universal-joint fork II set gradually from top to bottom, described universal-joint fork I and described jackshaft upper end are rotationally connected by cross axle I and the bearing I be arranged on described cross axle I, and described jackshaft lower end and described universal-joint fork II are rotationally connected by cross axle II and the bearing II be arranged on described cross axle II.
7. guiding type rotary steering drilling tool according to claim 2, is characterized in that, described oscillating bearing assembly comprises the self-aligning bearing be arranged on described mandrel, and the two ends of described self-aligning bearing are respectively provided with a thrust bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442752.3A CN104343389B (en) | 2014-09-02 | 2014-09-02 | Guiding type rotary steering drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442752.3A CN104343389B (en) | 2014-09-02 | 2014-09-02 | Guiding type rotary steering drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104343389A true CN104343389A (en) | 2015-02-11 |
| CN104343389B CN104343389B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410442752.3A Expired - Fee Related CN104343389B (en) | 2014-09-02 | 2014-09-02 | Guiding type rotary steering drilling tool |
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| CN (1) | CN104343389B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484668A (en) * | 2015-11-20 | 2016-04-13 | 西南石油大学 | Novel rotation guiding tool achieving accuracy positioning through deflection of guiding head |
| CN107780834A (en) * | 2017-08-22 | 2018-03-09 | 裴绪建 | A kind of guiding type rotary steering drilling tool |
| CN108999567A (en) * | 2018-06-01 | 2018-12-14 | 长江大学 | A kind of drilling hole type geological prospecting equipment carrying device |
| CN109209221A (en) * | 2018-11-14 | 2019-01-15 | 中国铁建重工集团有限公司 | A kind of down-hole hammer equipment and its impact guidance system |
| CN110410008A (en) * | 2019-07-22 | 2019-11-05 | 西南石油大学 | A kind of static state directional type hydraulic rotating steering tool |
| CN111279049A (en) * | 2017-10-29 | 2020-06-12 | 韦特福特科技控股有限责任公司 | Rotary disk valve for rotary guiding tool |
| CN112049570A (en) * | 2019-06-06 | 2020-12-08 | 万晓跃 | Rotary steering composite drilling device and drilling method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484668A (en) * | 2015-11-20 | 2016-04-13 | 西南石油大学 | Novel rotation guiding tool achieving accuracy positioning through deflection of guiding head |
| CN107780834A (en) * | 2017-08-22 | 2018-03-09 | 裴绪建 | A kind of guiding type rotary steering drilling tool |
| CN111279049A (en) * | 2017-10-29 | 2020-06-12 | 韦特福特科技控股有限责任公司 | Rotary disk valve for rotary guiding tool |
| CN108999567A (en) * | 2018-06-01 | 2018-12-14 | 长江大学 | A kind of drilling hole type geological prospecting equipment carrying device |
| CN109209221A (en) * | 2018-11-14 | 2019-01-15 | 中国铁建重工集团有限公司 | A kind of down-hole hammer equipment and its impact guidance system |
| CN109209221B (en) * | 2018-11-14 | 2024-02-09 | 中国铁建重工集团股份有限公司 | Down-the-hole hammer equipment and impact guiding system thereof |
| CN112049570A (en) * | 2019-06-06 | 2020-12-08 | 万晓跃 | Rotary steering composite drilling device and drilling method thereof |
| CN110410008A (en) * | 2019-07-22 | 2019-11-05 | 西南石油大学 | A kind of static state directional type hydraulic rotating steering tool |
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