CN1324217C - Bit pup joint capable of producing hydraulic pulsation in downhole - Google Patents
Bit pup joint capable of producing hydraulic pulsation in downhole Download PDFInfo
- Publication number
- CN1324217C CN1324217C CNB031121195A CN03112119A CN1324217C CN 1324217 C CN1324217 C CN 1324217C CN B031121195 A CNB031121195 A CN B031121195A CN 03112119 A CN03112119 A CN 03112119A CN 1324217 C CN1324217 C CN 1324217C
- Authority
- CN
- China
- Prior art keywords
- drill bit
- rotor
- stator
- pup joint
- connecting axle
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
The present invention relates to a drill bit pup joint for producing hydraulic pulsation at the bottom of a well, which belongs to a matching device of a drill bit. The present invention is characterized in that a rotor provided with a flow passage is arranged at the lower end of a connection shaft, and a stator provided with a flow passage is sheathed on the connection shaft and arranged at the upper part of the rotor; the stator is connected with a connecting sleeve via screw threads, the upper end of the connection shaft is provided with gland nuts connected with the connecting sleeve via the screw threads, the connecting sleeve is fixed in a shell body of a pup joint, and a hydraulic pulsation drill bit pup joint is connected with a drill bit. The rotor extends in the inner part of the drill bit, and the lower end surface of the rotor is positioned at an inlet of a water hole of the drill bit. The impact direction of drilling fluid is regulated by the stator to push the rotor to rotate, the flow passage at the lower end of the rotor and the water hole of the drill bit are superposed and staggered from time to time, and thus, hydraulic pulsation is generated at the bottom of a well in order to increase the drilling efficiency of breaking rock.
Description
Technical field:
The invention belongs to the corollary apparatus of oil, gas drilling usefulness drill bit.
Background technology:
When drill bit fragmentation deep formation rock, the problem that the ubiquity rock-breaking efficiency is low, the raising that this has restricted the drilling machinery drilling speed makes cost of production high.Practice shows that the shaft bottom hydraulic pulse helps to improve the catalase effect, improves rate of penetration.At present technology exists hydraulic pulse frequency and peak value to lack adjustability, pulse generating device apart from problems such as the shaft bottom are too far away, makes hydraulic energy very big along the journey loss, has weakened hydraulic pulse auxiliary rock ability, has limited the raising of broken rock drilling efficiency.Therefore improve the surge pressure of hydraulic pulse as far as possible, it is the key of giving full play to hydraulic pulse auxiliary rock advantage that the while ripple frequency can be regulated again, also is a problem that needs to be resolved hurrily in the technical research of current waterpower auxiliary rock.
Summary of the invention:
The present invention designs for addressing this problem just.It is made up of parts such as pipe nipple housing, adapter sleeve, rotor, stator, connecting axle, alignment bearing and thrust bearings.Rotor adopts the lower end be threaded in connecting axle, and stator is enclosed within on the connecting axle, is installed in the top of rotor, adopts between stator and the adapter sleeve to be threaded, and in the upper end of connecting axle clamp nut is housed, between clamp nut and the adapter sleeve also employing be threaded.Adapter sleeve is fixed on the pipe nipple enclosure interior.Hydraulic pulse drill bit pup joint is connected with drill bit, and rotor stretches into drill bit internal, and drilling fluid is adjusted impact direction through stator, promotes rotor rotation, and the runner of rotor lower end is during with the hydrophthalmia of drill bit and when coincidence and staggering, thereby at shaft bottom generation hydraulic pulse.The frequency of hydraulic pulse and peak value are adjusted by flow passage structure, the quantity of drilling fluid displacement, rotor and stator.The purpose of this invention is to provide that a kind of scene is suitable for, can produce high hydraulic pulse peak value and the adjustable again hydraulic pulse drill bit pup joint of frequency in the shaft bottom.
The present invention is achieved like this, rotor adopts to be threaded and is installed in the lower end of connecting axle, stator is enclosed within on the connecting axle, be installed in the top of rotor, adopt between stator and the adapter sleeve and be threaded, between the shaft shoulder of stator and connecting axle, thrust bearing is installed, clamp nut is equipped with in upper end at connecting axle, between the clamp nut and the shaft shoulder alignment bearing is housed, adopt between clamp nut and the linking sleeve and be threaded, adapter sleeve is fixed on the pipe nipple enclosure interior, rotor stretches into drill bit internal, and the lower surface of rotor is positioned at the entrance of bit port, and rotor is processed with runner, stator is processed with runner, adapter sleeve, rotor, stator, connecting axle, alignment bearing and thrust bearing can be merged into parts.Kit and drill bit connect to form complete hydraulic pulse device.
The present invention is when drill bit broken formation rock, and drilling fluid is adjusted impact direction through stator, promotes the rotor rotation of bottom, and when the runner of rotor lower end overlapped with the hydrophthalmia of drill bit, drilling fluid entered hydrophthalmia, flows out from nozzle, produces the peak value of hydraulic pulse.When the hydrophthalmia of the runner of rotor lower end and drill bit staggered, drilling fluid entered hydrophthalmia and is restricted, and produced the low value of hydraulic pulse.Because the position that produces pulsation is at drill bit internal, very approaching with the shaft bottom, hydraulic energy is less along the journey loss, the hydraulic pulse that is produced, can keep bigger pulsation peak value when arriving the shaft bottom, bottom rock is formed bigger impact, improve the broken rock drilling efficiency of drill bit.Different pulse frequencies relies on flow passage structure, the quantity of discharge capacity, rotor and the stator of adjusting drilling fluid to obtain.
Description of drawings:
A kind of drill bit pup joint that produces hydraulic pulse in the shaft bottom of Fig. 1
1. rotor; 2. connecting axle; 3. stator; 4. thrust bearing; 5. alignment bearing; 6. clamp nut; 7. adapter sleeve; 8. pipe nipple housing
The specific embodiment:
Now in conjunction with the invention will be further described.
When adopting the present invention to carry out the formation rock fragmentation, rotor adopts to be threaded and is installed in the lower end of connecting axle.Stator is enclosed within on the connecting axle, is installed in the top of rotor, and the internal diameter of stator and the external diameter of connecting axle leave the gap, adopts between stator and the adapter sleeve to be threaded.Between the shaft shoulder of stator and connecting axle, thrust bearing is installed.Clamp nut is equipped with in upper end at connecting axle, between the shaft shoulder of clamp nut and connecting axle alignment bearing is housed, and adopts between clamp nut and the linking sleeve to be threaded.Adapter sleeve is fixed on the pipe nipple enclosure interior.Hydraulic pulse drill bit pup joint is connected with drill bit, and rotor stretches into drill bit internal, and the lower surface of rotor is positioned at the entrance of bit port.Kit and drill bit connect to form complete hydraulic pulse device.
The present invention is when drill bit broken formation rock, and drilling fluid is adjusted impact direction through stator, promotes the rotor rotation of bottom, and when the runner of rotor lower end overlapped with the hydrophthalmia of drill bit, drilling fluid entered hydrophthalmia, flows out from nozzle, produces the peak value of hydraulic pulse.When the hydrophthalmia of the runner of rotor lower end and drill bit staggered, drilling fluid entered hydrophthalmia and is restricted, and produced the low value of hydraulic pulse.Because the position that produces pulsation is at drill bit internal, very approaching with the shaft bottom, hydraulic energy is less along the journey loss, thereby the hydraulic pulse that is produced, can keep bigger pulsation peak value when arriving the shaft bottom, bottom rock is formed bigger impact, improve the broken rock drilling efficiency of drill bit.Different pulse frequencies then relies on flow passage structure, the quantity of discharge capacity, rotor and the stator of adjusting drilling fluid to obtain.
Claims (4)
1. drill bit pup joint that produces hydraulic pulse in the shaft bottom, comprise pipe nipple housing [8], adapter sleeve [7], rotor [1], stator [3], connecting axle [2], alignment bearing [5] and thrust bearing [4], it is characterized in that rotor [1] adopts to be threaded is installed in the lower end of connecting axle [2], stator [3] is enclosed within on the connecting axle [2], be installed in the top of rotor [1], adopt between stator [3] and the adapter sleeve [7] and be threaded, between the shaft shoulder of stator [3] and connecting axle [2], thrust bearing [4] is installed, in the upper end of connecting axle [2] clamp nut [6] is housed, alignment bearing [5] is housed between the clamp nut [6] and the shaft shoulder, adopt between clamp nut [6] and the linking sleeve [7] and be threaded, adapter sleeve [7] is contained in pipe nipple housing [8] inside, and fixing, hydraulic pulse drill bit pup joint is connected with drill bit, rotor [1] stretches into drill bit internal.
2. require described a kind of drill bit pup joint that produces hydraulic pulse in the shaft bottom according to right 1, it is characterized in that the lower surface of rotor [1] is positioned at the entrance of bit port, rotor [1] is processed with runner.
3. require described a kind of drill bit pup joint that produces hydraulic pulse in the shaft bottom according to right 1 or 2, it is characterized in that stator [3] is processed with runner.
4. require described a kind of drill bit pup joint that produces hydraulic pulse in the shaft bottom according to right 1, it is characterized in that adapter sleeve [8], rotor [1], stator [3], connecting axle [2], alignment bearing [5] and thrust bearing [4] can be merged into parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031121195A CN1324217C (en) | 2003-04-08 | 2003-04-08 | Bit pup joint capable of producing hydraulic pulsation in downhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031121195A CN1324217C (en) | 2003-04-08 | 2003-04-08 | Bit pup joint capable of producing hydraulic pulsation in downhole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1536195A CN1536195A (en) | 2004-10-13 |
| CN1324217C true CN1324217C (en) | 2007-07-04 |
Family
ID=34319854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031121195A Expired - Fee Related CN1324217C (en) | 2003-04-08 | 2003-04-08 | Bit pup joint capable of producing hydraulic pulsation in downhole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1324217C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081543B (en) * | 2019-06-13 | 2024-08-27 | 中国石油天然气集团有限公司 | Adjustable near-bit underbalanced nipple |
| CN115788307B (en) * | 2023-02-13 | 2023-06-13 | 中国石油大学(华东) | Drilling tool with double-stage drill bit coupled with vibration impact and high-pressure pulse jet flow |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817739A (en) * | 1986-06-23 | 1989-04-04 | Jeter John D | Drilling enhancement tool |
| US4979577A (en) * | 1983-07-08 | 1990-12-25 | Intech International, Inc. | Flow pulsing apparatus and method for down-hole drilling equipment |
| CN2147341Y (en) * | 1993-02-27 | 1993-11-24 | 大庆石油管理局钻井研究所 | Pulse sleeve joint |
| CN1126791A (en) * | 1995-01-10 | 1996-07-17 | 王春然 | Pulse-flow drilling tool |
| CN2244096Y (en) * | 1996-04-02 | 1997-01-01 | 西安石油学院 | Super high pressure underground pulse efflux booster |
| US6053261A (en) * | 1996-04-29 | 2000-04-25 | Walter; Bruno H. | Flow pulsing method and apparatus for the increase of the rate of drilling |
| CN2625560Y (en) * | 2003-04-08 | 2004-07-14 | 胜利石油管理局钻井工艺研究院 | Bit sub capable of generating waterpower pulse at well bottom |
-
2003
- 2003-04-08 CN CNB031121195A patent/CN1324217C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4979577A (en) * | 1983-07-08 | 1990-12-25 | Intech International, Inc. | Flow pulsing apparatus and method for down-hole drilling equipment |
| US4817739A (en) * | 1986-06-23 | 1989-04-04 | Jeter John D | Drilling enhancement tool |
| CN2147341Y (en) * | 1993-02-27 | 1993-11-24 | 大庆石油管理局钻井研究所 | Pulse sleeve joint |
| CN1126791A (en) * | 1995-01-10 | 1996-07-17 | 王春然 | Pulse-flow drilling tool |
| CN2244096Y (en) * | 1996-04-02 | 1997-01-01 | 西安石油学院 | Super high pressure underground pulse efflux booster |
| US6053261A (en) * | 1996-04-29 | 2000-04-25 | Walter; Bruno H. | Flow pulsing method and apparatus for the increase of the rate of drilling |
| CN2625560Y (en) * | 2003-04-08 | 2004-07-14 | 胜利石油管理局钻井工艺研究院 | Bit sub capable of generating waterpower pulse at well bottom |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1536195A (en) | 2004-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104895517B (en) | A kind of turbine drives bivalve hydroscillator | |
| CN201386507Y (en) | Rotary blocking type hydraulic power pulse well-drilling tool | |
| CN106930688A (en) | A kind of eddy current type waterpower pulse axial impact instrument | |
| CN106639944A (en) | Turbo-type underground hydraulic oscillator | |
| CN103422814A (en) | Three-dimensional waterpower vibrator for petroleum drilling | |
| CN106677700A (en) | Turbine type bi-directional vibration anti-drag tool for coiled tubing drilling | |
| CN201129297Y (en) | Double screw rod electric submersible pump | |
| CN1952342B (en) | Drill bit with pulse generation cavity | |
| CN205100878U (en) | Three -dimensional hydroscillator | |
| CN206513346U (en) | Novel down-hole electronic controlled power is switched | |
| CN1324217C (en) | Bit pup joint capable of producing hydraulic pulsation in downhole | |
| CN201401143Y (en) | Pulse cavitation swirl generator | |
| CN203701950U (en) | Turbine mixed-flow type underground power pressurization drilling tool | |
| CN106194029A (en) | Rock burst drilling rig based on supercharger and rock breaking method | |
| CN2625560Y (en) | Bit sub capable of generating waterpower pulse at well bottom | |
| CN203783910U (en) | Waterpower oil-submerged pump | |
| CN2366552Y (en) | Upside down placed type electric submersible screw pump oil prodn. installation | |
| CN2898267Y (en) | Positive sand washer | |
| CN2732976Y (en) | Downhole hydraulic pumping pressure-reducing drilling tool | |
| CN2399530Y (en) | Ring drainage electrical underwater screw pump oil extracting unit | |
| CN2244096Y (en) | Super high pressure underground pulse efflux booster | |
| CN113006680A (en) | Low-pressure-loss torsion impact drilling tool and rock breaking method | |
| CN207406328U (en) | A kind of automatically controlled injection well downhole flow regulator | |
| CN101139914A (en) | Submerged reverse-circulation well-digging machine | |
| CN2561923Y (en) | Fixed point multi-stage hydraulic oscillating block eliminator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 Termination date: 20100408 |