CN217632258U - Measurement-while-drilling flexible drilling tool - Google Patents
Measurement-while-drilling flexible drilling tool Download PDFInfo
- Publication number
- CN217632258U CN217632258U CN202123041034.XU CN202123041034U CN217632258U CN 217632258 U CN217632258 U CN 217632258U CN 202123041034 U CN202123041034 U CN 202123041034U CN 217632258 U CN217632258 U CN 217632258U
- Authority
- CN
- China
- Prior art keywords
- flexible
- drilling
- measurement
- drilling tool
- joint
- 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.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a follow and bore flexible drilling tool of observing and controling, including direction flexible screen pipe with alternate in the inside flexible drilling rod of direction flexible screen pipe, flexible drilling rod comprises the articulated flexible nipple joint in proper order of multisection. The utility model relates to a flexible drilling tool of observing and controling along with boring can realize arbitrary crooked and curvature radius value little, is applicable to the ultrashort radius horizontal well drilling operation that curvature radius value is little.
Description
Technical Field
The utility model relates to a drilling equipment technical field especially relates to a follow-drilling and observe and control flexible drilling tool.
Background
The ultra-short radius horizontal well technology is a new technology for developing and excavating residual oil, and mainly comprises the step of directly performing windowing sidetrack drilling in an original well casing, and the obvious difference between the ultra-short radius horizontal well technology and a conventional horizontal well is that the curvature radius is very small, and the conventional drilling tool cannot meet the requirement, so that the steering and the drilling of a flexible drilling tool are realized through hydraulic pressure, and a water jet drill bit advances in a non-rotating manner to realize continuous rock breaking and drilling.
The existing flexible drilling tool is small in bending degree and large in curvature radius value, and cannot be applied to an ultra-short radius horizontal well with a small curvature radius value.
Therefore, how to provide a flexible drilling tool which can be bent freely and has a small curvature radius value is a technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flexible drilling tool of observing and controling along with boring can realize arbitrary crooked and curvature radius value little, is applicable to the ultrashort radius horizontal well drilling operation that curvature radius value is little.
In order to achieve the above object, the utility model provides a flexible drilling tool is observed and controled along with boring, including direction flexible screen pipe and alternate in the flexible drilling rod of direction flexible screen pipe inside, flexible drilling rod comprises the flexible nipple joint of articulated multisection in proper order
Preferably, each flexible short section is provided with a central through hole in the axial direction, and a plurality of central through holes form a threading channel for inserting cables.
Preferably, the cable is a single core armoured cable.
Preferably, the upper end and the lower end of the flexible drill rod are respectively connected with the hanging rotary rod and the drill bit of the straight well section.
Preferably, the flexible short joints are connected through a movable hinge.
Preferably, the cables are connected by a quick-plug connector, which comprises a male connector and a female connector.
Preferably, the male connector comprises a male connector body, a contact pin located in the receiving hole of the male connector body, and a first conductive core connected to the contact pin, and a first insulating layer is disposed at the junction of the contact pin and the first conductive core.
Preferably, the female joint comprises a female joint body, a contact clip located in a butt joint hole of the female joint body and a second conductive core connected with the contact clip, and second insulating layers are arranged on the peripheral side walls of the butt joint hole.
Adopt the utility model discloses a observe and control flexible drilling tool along with boring utilizes the interlude in the inside flexible drilling rod of flexible screen pipe of direction, and flexible drilling rod comprises the multisection articulated flexible nipple joint in proper order, and flexible nipple joint can realize arbitrary bending and curvature radius value little through articulated connection, has solved the little and curvature radius value of current flexible drilling tool bending degree big, can't be applicable to the little ultrashort radius horizontal well of curvature radius value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a measurement-while-drilling flexible drilling tool provided by an embodiment of the present invention;
fig. 2 is a schematic structural view of a quick plug connector according to an embodiment of the present invention.
Wherein: 1. the flexible drilling tool comprises a hanging rotating rod, 2 parts of a first connector, 3 parts of a well wall, 4 parts of a guiding flexible sieve tube, 5 parts of a flexible short section, 6 parts of a second connector, 7 parts of a drill bit, 8 parts of a female connector, 8-1 parts of a second conductive core, 8-2 parts of a contact clip, 8-3 parts of a second insulating layer, 8-4 parts of a butt joint hole, 9 parts of a male connector, 9-1 parts of a receiving hole, 9-2 parts of a contact pin, 9-3 parts of a first insulating layer and 9-4 parts of a first conductive core.
Detailed Description
The core of the utility model is to provide an ultra-short radius MWD measurement while drilling device to effectively measure the well orbit parameter real-time measurement to ultra-short radius horizontal well, thereby the drilling of more accurate control well orbit.
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 2, the utility model discloses a flexible drilling tool for measurement and control while drilling, which comprises a guiding flexible sieve tube and a flexible drill rod inserted in the guiding flexible sieve tube, wherein the flexible drill rod is composed of a plurality of sections of flexible short joints which are hinged in sequence; the flexible drill rod is formed by hinging the flexible short sections in sequence, so that the problems that the bending degree of the existing flexible drilling tool is small and the curvature radius value is large, and the existing flexible drilling tool cannot be applied to an ultra-short-radius horizontal well with a small curvature radius value are solved.
Specifically, every the axial of flexible nipple joint all is equipped with central through-hole, and is a plurality of central through-hole forms the threading passageway that supplies the cable to alternate, and the cable docks through quick plug connector.
Specifically, the cable is a single-core armored cable, and has the characteristics of high pressure resistance, water resistance, oil resistance, corrosion resistance, light weight, wear resistance and long service life.
Specifically, one end of a flexible drill rod is connected with a suspension rotating rod 1 of a straight well section through a first connector 2, the other end of the flexible drill rod is connected with a drill bit 7 through a second connector 6, and the flexible drill rod can only bend to one direction when an inclined section and a horizontal section in a short-radius horizontal well drilling process are drilled along with the rotary drilling of the drill bit 7 due to the fact that a guide flexible sieve tube 4 is sleeved outside the flexible drill rod, and can quickly achieve horizontal drilling from vertical drilling to play a role in guiding.
Specifically, through activity hinged joint between the flexible nipple joint 5, flexible nipple joint 5 is convenient for realize turning to inside the flexible screen pipe 4 that leads, and then reaches that flexible drilling rod can be crooked wantonly and curvature radius is little, is applicable to the ultrashort radius horizontal well drilling operation that curvature radius value is little.
Specifically, the communication cable inside the flexible drilling tool is too long to be conveniently turned, so that the communication cable is divided into a plurality of parts to be connected through the butt joint, the butt joint is preferably a quick plug-in joint which is divided into a male joint and a female joint, the male joint comprises a male joint body, the male joint body is provided with a contact pin 9-2, the contact tip of the contact pin 9-2 is positioned in a butt hole of the male joint body, the tail part of the contact pin 9-2 is connected with the first conductive core 9-4, and a first insulating layer is arranged at the joint of the contact pin 9-2 and the first conductive core.
The female joint comprises a female joint body, the female joint body is provided with a contact clip 8-2, one end of the contact clip 8-2 is positioned in the receiving hole 8-4, the other end of the contact clip is connected with the second conductive core 9-4, and the peripheral side wall of the receiving hole 8-4 is provided with a second insulating layer.
The butt joint is realized through the contact checkpost of female joint and the contact pilotage of male joint, forms the intercommunication circuit, and realizes swing joint through the butt joint hole 9-1 internal thread of male joint body and female joint body outer end external screw thread, and then reaches the locking effect, prevents that the butt joint from coming off, connects the cable through the butt joint of male joint and female joint, and signal in the pit can be transmitted to ground through the cable.
The concrete during operation: the cable that realizes flexible drilling rod inside through quick plug connector earlier connects, along with the rotatory drilling of drill bit 7, because the flexible screen pipe 4 cover of direction is outside flexible drilling rod, when the section of deflecting that is in short radius horizontal well drilling process creeps into and the horizontal segment creeps into, can only bend to one direction, can reach the horizontal drilling from creeping into perpendicularly rapidly, play the guide effect, and flexible drilling rod comprises multisection articulated flexible nipple joint 5 in proper order, consequently flexible short-stem 5 can realize that flexible drilling rod is crooked wantonly and the radius of curvature is little, be applicable to the little ultrashort radius horizontal well drilling operation of radius of curvature value.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a follow-drilling measurement and control flexible drilling tool, includes direction flexible screen pipe (4) and alternates in the flexible drilling rod of direction flexible screen pipe (4) inside, its characterized in that: the flexible drill rod is composed of a plurality of sections of flexible short sections (5) which are sequentially hinged, each flexible short section (5) is provided with a central through hole in the axial direction, and the central through holes form a threading channel for inserting cables.
2. The measurement-while-drilling flexible drilling tool according to claim 1, wherein the cable is a single core armored cable.
3. The flexible drill tool with measurement and control while drilling according to claim 2, wherein the upper end and the lower end of the flexible drill rod are respectively connected with the hanging rotating rod (1) and the drill bit (7) of the straight well section.
4. The measurement-while-drilling flexible drilling tool as claimed in claim 3, wherein the flexible short joints (5) are connected through a living hinge.
5. The measurement-while-drilling flexible drilling tool as claimed in claim 4, wherein the cable is connected by a quick plug connector, and the quick plug connector comprises a male connector (9) and a female connector (8).
6. The rhd tool according to claim 5, wherein the male connector (9) comprises a male connector body, a contact pin (9-2) located in a receiving hole (9-1) of the male connector body, and a first conductive core (9-4) connected with the contact pin (9-2), and a first insulating layer (9-3) is arranged at the joint of the contact pin (9-2) and the first conductive core (9-4).
7. The measurement-while-drilling flexible drilling tool as claimed in claim 6, wherein the female joint (8) comprises a female joint body, a contact clip (8-2) located in a butt-joint hole (8-4) of the female joint body, and a second conductive core (8-1) connected with the contact clip (8-2), and a second insulating layer (8-3) is arranged on the peripheral side wall of the butt-joint hole (8-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123041034.XU CN217632258U (en) | 2021-12-06 | 2021-12-06 | Measurement-while-drilling flexible drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123041034.XU CN217632258U (en) | 2021-12-06 | 2021-12-06 | Measurement-while-drilling flexible drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217632258U true CN217632258U (en) | 2022-10-21 |
Family
ID=83618357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123041034.XU Active CN217632258U (en) | 2021-12-06 | 2021-12-06 | Measurement-while-drilling flexible drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217632258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116411595A (en) * | 2023-06-09 | 2023-07-11 | 北京城建设计发展集团股份有限公司 | External plugging method for underground structure water leakage treatment |
-
2021
- 2021-12-06 CN CN202123041034.XU patent/CN217632258U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116411595A (en) * | 2023-06-09 | 2023-07-11 | 北京城建设计发展集团股份有限公司 | External plugging method for underground structure water leakage treatment |
| CN116411595B (en) * | 2023-06-09 | 2023-09-08 | 北京城建设计发展集团股份有限公司 | External plugging method for underground structure water leakage treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9044798B2 (en) | Wired conduit segment and method of making same | |
| US10404007B2 (en) | Wired pipe coupler connector | |
| CA1092532A (en) | Kelly and saver sub combination with telemetering means | |
| US8462013B2 (en) | Apparatus, system, and method for communicating while logging with wired drill pipe | |
| US10760349B2 (en) | Method of forming a wired pipe transmission line | |
| CN217632258U (en) | Measurement-while-drilling flexible drilling tool | |
| DE112014003216T5 (en) | Underground connector | |
| US6531871B1 (en) | Extension assembly for an electromagnetic antenna and method of connection | |
| SA110310300B1 (en) | Multiple Stage Mechanical Drift Tool | |
| US20200040664A1 (en) | Transmission line for wired pipe | |
| US9052043B2 (en) | Wired pipe coupler connector | |
| US8986028B2 (en) | Wired pipe coupler connector | |
| US7572134B2 (en) | Centering assembly for an electric downhole connection | |
| EP2203620B1 (en) | Structure for wired drill pipe having improved resistance to failure of communication device slot | |
| US20140148027A1 (en) | Wired pipe coupler connector | |
| US20190218864A1 (en) | Wired pipe surface sub | |
| CN201144695Y (en) | Novel signal transmission drill string | |
| CN116220549A (en) | Flexible drilling tool for measurement and control while drilling and use method | |
| US6135215A (en) | Tool string apparatus for lateral borehole formation | |
| US11840893B2 (en) | Direct contact telemetry system for wired drill pipe | |
| CN103485767A (en) | Cabled transmission device for connecting threaded joint | |
| NO341041B1 (en) | Apparatus and method for connecting cable segments | |
| CN220226738U (en) | High-strength high-toughness center cable drill rod | |
| CN210483585U (en) | Pipe penetrating device and continuous oil pipe | |
| CA2730816A1 (en) | Apparatus for connecting downhole tools to a wireline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |