Wireless measurement while drilling (MWD) instrument

Abstract

The utility model discloses an MWD (measurement while drilling) wireless measurement-while-drilling instrument, and relates to the technical field of wireless measurement-while-drilling instruments. The MWD wireless measurement-while-drilling instrument comprises an MWD wireless measurement-while-drilling instrument host and a probe rod body, a connector is arranged at the end of the probe rod body, a mounting groove is formed in the surface of the connector, and a charging port, a switch and a working lamp are arranged on the inner wall of the mounting groove. An end cap for protecting the connector is arranged at the end part of the probe rod main body; and the sealing connecting assembly comprises a connecting seat which is fixedly arranged on the outer surface of the end part of the probe rod main body and corresponds to the end cap. By arranging the sealing connection assembly, when the end cap at the end of the probe rod body is connected, effective sealing between the end cap and the connection base can be achieved, dual effective sealing can be achieved under the action of the annular expansion water stop strip, and then the sealing performance after the end cap and the end of the probe rod are connected is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless measurement while drilling instrument technical field, concretely is a kind of MWD wireless measurement while drilling instrument. BACKGROUND

[0002] Wireless measurement while drilling instrument is a kind of measuring tool used in drilling process, mainly used for real-time monitoring and recording various parameters in drilling process, such as inclination angle, azimuth angle, tool face angle, to ensure the accuracy and efficiency of drilling operation.

[0003] The existing MWD wireless measurement while drilling instrument mainly includes host computer and probe rod, wherein the end of the probe rod is provided with wireless receiving probe, charging port and switch, and is protected by end cap, and the end cap and the probe rod are only connected by thread, and the thread connection mode leads to poor sealing between the end cap and the probe rod, so as to easily damage the wireless receiving probe, charging port and switch.

[0004] Therefore, we propose a kind of MWD wireless measurement while drilling instrument to solve the above problems. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of MWD wireless measurement while drilling instrument, solve the problem of poor sealing between end cap and probe rod in background art.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of MWD wireless measurement while drilling instrument, comprising:

[0007] MWD wireless measurement while drilling instrument host computer and probe rod main body, the end of the probe rod main body is provided with connector, and the surface of connector is provided with installation slot, the inner wall of installation slot is respectively provided with charging port, switch and working lamp, and the end of the connector is provided with wireless receiving probe, the end of the probe rod main body is provided with end cap for protecting connector;

[0008] Sealing connection assembly, the sealing connection assembly includes the connecting seat that is fixed on the outer surface of the end of probe rod main body and corresponds with end cap, the end of the connecting seat is fixed with the connecting head, the inner ring surface of the end cap is provided with screw thread, and the outer surface of the connecting seat is provided with screw groove connected with the screw thread of the inner wall of end cap, the outer surface of the end of the connecting head is fixed with annular expansion waterstop.

[0009] Preferably, the outer surface of the connecting seat is fixed with connecting ring, and the inside of the connecting ring is provided with annular cavity, the end of the end cap is fixed with pressure pipe connected with the inner wall of annular cavity slidingly.

[0010] Preferably, the inner wall of the annular cavity is fixed with an inflatable airbag ring, and the inner wall of the annular cavity is slidingly provided with a pressing ring for pressing the inflatable airbag ring.

[0011] Preferably, the end of the pressing pipe is provided with a plurality of spherical cavities in a circumferential array, and the inner wall of each of the spherical cavities is rotatably provided with a metal ball, which is rollingly connected with the surface of the pressing ring.

[0012] Preferably, the outer surface of the connecting seat is provided with an annular mounting groove, and the inner wall of the annular mounting groove is fixed with a sealing airbag ring, and the inner wall of the end cap is provided with an annular sealing groove corresponding to the sealing airbag ring.

[0013] Preferably, the inner wall of the inflatable airbag ring is provided with a plurality of reset springs in a circumferential array.

[0014] Preferably, the inner wall of the inflatable airbag ring is provided with an inflation pipe, one end of the inflation pipe penetrating through the inside of the connecting seat and communicating with the sealing airbag ring.

[0015] Beneficial effects

[0016] The utility model provides a kind of MWD wireless while-drilling measuring instrument.Compared with prior art, it has the following beneficial effects:

[0017] The MWD wireless while-drilling measuring instrument, by setting sealing connection component, the end cap of the end portion of probe rod main body can realize effective sealing between end cap and connecting seat when connecting, and can realize double effective sealing under the action of annular expansion waterstop, to effectively guarantee the sealing property after end cap and the end portion of probe rod are connected. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the three-dimensional structure schematic diagram of the utility model connecting head;

[0020] Figure 3 It is the connecting seat and connecting head sectional structure schematic diagram of the utility model;

[0021] Figure 4 It is the utility model Figure 3 It is the enlarged structure schematic diagram of place A in the utility model;

[0022] Figure 5 It is the enlarged structure schematic diagram of place B in the utility model. Figure 3

[0023] In the drawing:

[0024] 100, probe rod main body;

[0025] ​200. Connector; 201. Charging port; 202. Switch; 203. Work light; 204. Wireless receiver probe; 205. End cap;

[0026] 300. Sealing connection assembly; 301. Connecting seat; 302. Annular expansion waterstop strip; 303. Connecting ring; 304. Pressure pipe; 305. Inflatable airbag ring; 306. Pressure ring; 307. Metal ball; 308. Sealing airbag ring; 309. Annular sealing groove; 3010. Return spring; 3011. Inflation pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 This utility model provides a technical solution: a wireless MWD (Measuring While Drilling) instrument, comprising:

[0029] The MWD wireless measurement while drilling instrument main unit and probe body 100 are provided. The probe body 100 is provided with a connector 200 at its end, and the surface of the connector 200 is provided with a mounting groove. The inner wall of the mounting groove is provided with a charging port 201, a switch 202 and a work light 203 respectively. The end of the connector 200 is provided with a wireless receiving probe 204. The end of the probe body 100 is provided with an end cap 205 for protecting the connector 200.

[0030] The sealing connection assembly 300 includes a connecting seat 301 fixed on the outer surface of the end of the probe body 100 and corresponding to the end cap 205, a connector 200 fixed on the end of the connecting seat 301, the inner ring surface of the end cap 205 is provided with threads, and the outer surface of the connecting seat 301 is provided with a threaded groove that is threaded to the inner wall of the end cap 205. The outer surface of the end of the connector 200 is provided with an annular expansion waterstop strip 302.

[0031] See Figure 3 , Figure 4 A connecting ring 303 is fixed on the outer surface of the connecting seat 301, and an annular cavity is opened inside the connecting ring 303. A pressure tube 304 is fixed at the end of the end cap 205 and is slidably connected to the inner wall of the annular cavity.

[0032] Specifically, by setting the pressure tube 304, the pressure tube 304 can enter the annular cavity and slide to connect with the inner wall of the annular cavity.

[0033] See Figure 4 An inflatable airbag ring 305 is fixedly provided on the inner wall of the annular cavity, and a pressure ring 306 for squeezing the inflatable airbag ring 305 is slidably provided on the inner wall of the annular cavity.

[0034] Specifically, by setting the pressure ring 306, the airbag ring 305 can be squeezed by the sliding of the pressure tube 304 and the pressure ring 306.

[0035] See Figure 4 The end of the pressure tube 304 is provided with several spherical cavities in a circumferential array, and the inner wall of each of the spherical cavities is provided with a metal ball 307, which is rolledly connected to the surface of the pressure ring 306.

[0036] Specifically, by setting the metal ball 307, the end of the pressure tube 304 can be rotatably connected to the surface of the pressure ring 306 during the rotation of the end cap 205.

[0037] See Figure 3 , Figure 5 The outer surface of the connector 301 is provided with an annular mounting groove, and the inner wall of the annular mounting groove is fixed with a sealing airbag ring 308. The inner wall of the end cap 205 is provided with an annular sealing groove 309 corresponding to the sealing airbag ring 308.

[0038] Specifically, by setting a sealing airbag ring 308, the sealing airbag ring 308 can be inflated when the inflatable airbag ring 305 is squeezed, so that it expands and achieves a sealing effect.

[0039] See Figure 4 The inner wall of the inflatable airbag ring 305 is provided with several return springs 3010 arranged in a circumferential array.

[0040] Specifically, by setting a reset spring 3010, the inflatable airbag ring 305 can be reset when the end cap 205 is removed, thereby sucking away the air inside the sealing airbag ring 308.

[0041] See Figure 4 , Figure 5 An inflation tube 3011 is provided on the inner wall of the inflatable airbag ring 305. One end of the inflation tube 3011 passes through the interior of the connecting seat 301 and communicates with the sealing airbag ring 308.

[0042] In this invention, by setting a sealing connection component 300, the end cap 205 at the end of the probe body 100 can effectively seal the connection between the end cap 205 and the connecting seat 301 during connection. Moreover, it can achieve double effective sealing under the action of the annular expansion water-stop strip 302, thereby effectively ensuring the sealing performance after the end cap 205 is connected to the end of the probe.

[0043] Working principle: the end cap 205 at the end of the probe rod body 100 can rotate the end cap 205 when connected, so that the end cap 205 connecting seat 301 is screwed, in the process of screwing the end cap 205 into the outer surface of the connecting seat 301, the pressure pipe 304 at the end of the end cap 205 can be inserted into the annular cavity and extrude the pressure ring 306, so that the pressure ring 306 can pressurize the inflatable air bag ring 305, the air in the inflatable air bag ring 305 enters the sealed air bag ring 308 through the inflation pipe 3011, the sealed air bag ring 308 expands, and when the end cap 205 is screwed to the maximum, it enters the annular sealing groove 309, realizing effective sealing between the end cap 205 and the connecting seat 301, and realizing double effective sealing under the action of the annular expansion water stop 302, thereby effectively ensuring the sealing after the end cap 205 is connected with the end of the probe rod.

[0044] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

Claims

1. A MWD wireless measurement-while-drilling instrument, characterized by, Include: MWD wireless while drilling measurement instrument host and probe rod main body (100), the end of the probe rod main body (100) is provided with a connector (200), and the surface of the connector (200) is provided with a mounting groove, the inner wall of the mounting groove is respectively provided with a charging port (201), a switch (202) and a working lamp (203), and the end of the connector (200) is provided with a wireless receiving probe (204), the end of the probe rod main body (100) is provided with an end cap (205) for protecting the connector (200); The sealing connection assembly (300) comprises a connecting seat (301) fixed on the outer surface of the end of the probe rod main body (100) and corresponding to the end cap (205), the connecting head (200) is fixed on the end of the connecting seat (301), the inner ring surface of the end cap (205) is provided with a thread, and the outer surface of the connecting seat (301) is provided with a threaded groove which is threadedly connected with the inner wall of the end cap (205), the end outer surface of the connecting head (200) is fixedly provided with an annular expansion water stop strip (302).

2. The MWD wireless measurement-while-drilling instrument of claim 1, wherein: The outer surface of the connecting seat (301) is fixedly provided with a connecting ring (303), and the inner part of the connecting ring (303) is provided with an annular cavity, and the end of the end cap (205) is fixedly provided with a pressing pipe (304) which is slidingly connected with the inner wall of the annular cavity.

3. The MWD wireless measurement-while-drilling instrument of claim 2, wherein: The inner wall of the annular cavity is fixedly provided with an inflatable air bag ring (305), and the inner wall of the annular cavity is slidingly provided with a pressing ring (306) for extruding the inflatable air bag ring (305).

4. The MWD wireless measurement-while-drilling instrument of claim 3, wherein: The end of the pressing pipe (304) is provided with a plurality of spherical cavities in a circumferential array, and the inner wall of each of the spherical cavities is rotatably provided with a metal ball (307), and the metal ball (307) is rollingly connected with the surface of the pressing ring (306).

5. The MWD wireless measurement-while-drilling instrument of claim 3, wherein: The outer surface of the connecting seat (301) is provided with an annular mounting groove, and the inner wall of the annular mounting groove is fixedly provided with a sealing air bag ring (308), and the inner wall of the end cap (205) is provided with an annular sealing groove (309) corresponding to the sealing air bag ring (308).

6. The MWD wireless measurement-while-drilling instrument of claim 3, wherein: The inner wall of the inflatable air bag ring (305) is provided with a plurality of reset springs (3010) in a circumferential array.

7. The MWD wireless measurement-while-drilling instrument of claim 5, wherein: The inner wall of the inflatable air bag ring (305) is provided with an inflation pipe (3011), one end of the inflation pipe (3011) penetrates the inner part of the connecting seat (301) and communicates with the sealing air bag ring (308).

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