Underground sensor for measurement while drilling of underground drilling

Abstract

The utility model relates to the technical field of drilling and production, in particular to an underground sensor for measurement while drilling in underground drilling, which comprises a probe rod part for measurement while drilling; the sheath part is arranged on the probe rod part, and the probe rod part comprises a rod body; the circuit tube is arranged on the rod body; the wireless receiving probe is arranged on the circuit tube; the external thread is arranged on the rod body; the inner sealing ring groove is formed in the rod body; and the inner sealing ring is arranged on the inner sealing ring groove. Through an assembly composed of the probe rod part and the sheath part, measurement while drilling operation of underground drilling is realized, a set of measurement while drilling sensing component with good use stability is provided, a sensing circuit part of the probe rod part is provided with an internally and externally sealed occlusion type sealing structure, and the sealing structure is provided with a pressurization mechanism, so that high sealing performance can be kept between sealing elements, and the sealing performance is improved. The underground use safety of the measurement-while-drilling sensing component is greatly improved, the use stability of the sensing circuit part is ensured, and the measurement-while-drilling reliability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drilling and mining, and specifically relates to a downhole sensor for downhole drilling while drilling measurement. BACKGROUND

[0002] In downhole drilling operation, a wireless drilling while measuring tool is usually used to measure inclination and azimuth, the measuring tool is usually placed in one or two non-magnetic drill collars, and then a corresponding calculation method is used to calculate the inclination and azimuth of the position of the drilling while measuring instrument.

[0003] The existing downhole drilling while drilling measurement component, when the drill bit enters the deep downhole environment with high water pressure, the sensing part of the probe rod is easy to be damaged due to the penetration of water pressure, affecting the reliability of downhole measurement, therefore, a downhole sensor for downhole drilling while drilling measurement is provided to provide a set of drilling while measuring sensing components with good stability for downhole drilling while drilling measurement operation, so that the sealing parts can maintain high sealing property, improve the safety of the drilling while measuring sensing component in downhole use, ensure the stability of the sensing circuit part, and improve the reliability of drilling while measurement. SUMMARY

[0004] In view of the problems in the prior art, the utility model provides a downhole sensor for downhole drilling while drilling measurement to provide a set of drilling while measuring sensing components with good stability for downhole drilling while drilling measurement operation, so that the sealing parts can maintain high sealing property, improve the safety of the drilling while measuring sensing component in downhole use, ensure the stability of the sensing circuit part, and improve the reliability of drilling while measurement.

[0005] The utility model solves technical scheme that it adopts is a kind of downhole sensor for downhole drilling while drilling measurement, comprising:

[0006] Probe rod part, for drilling while measuring;

[0007] Sheath part, is set up on probe rod part.

[0008] By adopting the above technical scheme, the assembly composed of probe rod part and sheath part is used to provide a set of drilling while measuring sensing components with good stability for downhole drilling while drilling measurement operation.

[0009] Specifically, the probe rod part comprises:

[0010] Rod body;

[0011] Circuit tube, is set up on rod body;

[0012] Wireless receiving probe, is set up on circuit tube;

[0013] External thread, is set up on rod body;

[0014] An inner sealing ring groove is arranged on the rod body.

[0015] An inner sealing ring is arranged on the inner sealing ring groove.

[0016] Specifically, the sheath part comprises:

[0017] A metal sleeve is arranged on the rod body.

[0018] An inner thread is arranged on the metal sleeve.

[0019] An outer sealing ring groove is arranged on the metal sleeve.

[0020] An outer sealing ring is arranged on the outer sealing ring groove.

[0021] An air nozzle is arranged on the metal sleeve.

[0022] By adopting the above technical scheme, the biting type sealing structure of inner and outer sealing is arranged on the sensing circuit part of the probe rod part, and the pressurizing mechanism is arranged on the sealing structure, so that high sealing property can be maintained between the sealing members, the safety of the while-drilling measurement sensing part in use in the well is greatly improved, the stability of the sensing circuit part in use is ensured, and the reliability of the while-drilling measurement is improved.

[0023] Specifically, the outer sealing ring is internally provided with a groove corresponding to the inner sealing ring, the outer sealing ring is of a hollow structure, and the outer sealing ring is externally provided with a gas connection port, which is communicated with the air nozzle.

[0024] By adopting the above technical scheme, the hollow inner cavity of the outer sealing ring is inflated and deflated through the air nozzle.

[0025] Specifically, the rod body is provided with a first wrench clamping groove.

[0026] Specifically, the metal sleeve is provided with a second wrench clamping groove at the end thereof.

[0027] The present application has the following beneficial effects: the assembly composed of the probe rod part and the sheath part realizes the while-drilling measurement operation for the downhole drilling, provides a set of while-drilling measurement sensing part with good stability, the biting type sealing structure of inner and outer sealing is arranged on the sensing circuit part of the probe rod part, and the pressurizing mechanism is arranged on the sealing structure, so that high sealing property can be maintained between the sealing members, the safety of the while-drilling measurement sensing part in use in the well is greatly improved, the stability of the sensing circuit part in use is ensured, the reliability of the while-drilling measurement is improved, and the problem that the sensing part of the probe rod is easily damaged due to the penetration of water pressure, thereby affecting the reliability of the downhole measurement, is solved. BRIEF DESCRIPTION OF DRAWINGS

[0028] The utility model is further illustrated below in combination with the drawings and embodiments.

[0029] Figure 1 It is the whole schematic view of the utility model;

[0030] Figure 2 It is the probe rod part schematic view of the utility model;

[0031] Figure 3 It is the sheath part schematic view of the utility model;

[0032] Figure 4 It is the metal sleeve schematic view of the utility model;

[0033] Figure 5 It is the metal sleeve tail part schematic view of the utility model;

[0034] Figure 6 It is the outer sealing ring schematic view of the utility model.

[0035] In the drawing: 1, probe rod part;101, rod body;102, circuit tube;103, wireless receiving probe;104, outer thread;105, inner sealing ring groove;106, inner sealing ring;107, first wrench clamping groove;2, sheath part;201, metal sleeve;202, inner thread;203, outer sealing ring groove;204, outer sealing ring;205, recess;206, gas inlet;207, gas nozzle;208, second wrench clamping groove. Specific implementation

[0036] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0037] In order to improve the stability of measurement, as shown in Figures 1-6 The utility model discloses a downhole sensor for drilling measurement while drilling in a well, which comprises:

[0038] Probe rod part 1 is used for drilling measurement while drilling.

[0039] Sheath part 2 is arranged on probe rod part 1.

[0040] In use, the probe rod part 1 and the sheath part 2 provide a set of drilling measurement sensor components with good use stability for the drilling measurement while drilling in a well, the inner and outer sealing clamping sealing structure is arranged on the sensing circuit part of the probe rod part 1, and the pressurizing mechanism is arranged on the sealing structure, so that the sealing parts can keep high sealing property.

[0041] Exemplarily, as shown in Figure 2 , 3 The utility model also comprises that the probe rod part 1 comprises:

[0042] a rod body 101;

[0043] a circuit tube 102 arranged on the rod body 101;

[0044] a wireless receiving probe 103 arranged on the circuit tube 102;

[0045] an external thread 104 arranged on the rod body 101;

[0046] an inner sealing ring groove 105 arranged on the rod body 101;

[0047] an inner sealing ring 106 arranged on the inner sealing ring groove 105.

[0048] sensing measurement is realized through the circuit tube 102 and the wireless receiving probe 103.

[0049] In order to ensure the reliability of the measuring part, as shown in Figure 4 、 5 , 6, the utility model also includes, the sheath part 2 includes:

[0050] a metal sleeve 201 arranged on the rod body 101;

[0051] an inner thread 202 arranged on the metal sleeve 201;

[0052] an outer sealing ring groove 203 arranged on the metal sleeve 201;

[0053] an outer sealing ring 204 arranged on the outer sealing ring groove 203;

[0054] an air nozzle 207 arranged on the metal sleeve 201.

[0055] The inner side of the outer sealing ring 204 is provided with a groove 205 corresponding to the inner sealing ring 106, the outer sealing ring 204 is a hollow structure, and the outer side of the outer sealing ring 204 is provided with a gas connection port 206, which is communicated with the air nozzle 207.

[0056] The inner sealing ring 106 and the outer sealing ring 204 are both made of rubber material.

[0057] In use, by charging and discharging the air nozzle 207, the expansion degree of the outer sealing ring 204 is changed, and the sealing and fitting pressure between the outer sealing ring 204 and the inner sealing ring 106 is adjusted.

[0058] As shown in Figure 2 , the utility model also includes that the rod body 101 is provided with a first wrench clamping groove 107.

[0059] In use, the first wrench clamping groove 107 is convenient for workers to fix the rod body 101 through a wrench.

[0060] As shown in the drawings, Figure 4 The utility model further comprises a second wrench clamping groove 208 arranged at the end of the metal sleeve 201.

[0061] In use, the second wrench clamping groove 208 facilitates the worker to clamp the metal sleeve 201, so that the metal sleeve 201 can be twisted on the rod body 101.

[0062] In use, after the drilling worker adjusts the circuit tube 102 and the wireless receiving probe 103, the metal sleeve 201 is sleeved on the circuit tube 102 and the wireless receiving probe 103, and the metal sleeve 201 is twisted on the rod body 101 based on the internal thread 202 and the external thread 104. During the twisting, the worker can use a wrench to assist in the tightening. After the tightening, the outer sealing ring 204 reaches the position of the inner sealing ring 106, and the position of the inner sealing ring 106 corresponds to the groove 205. Then, the worker inflates the air nozzle 207 by using an external inflation device, so that the outer sealing ring 204 is expanded, thereby further improving the sealing type between the outer sealing ring 204 and the inner sealing ring 106 on the rod body 101 and the metal sleeve 201, improving the water pressure resistance of the electronic part, and then the whole probe rod can be assembled on the drill rod above the drill bit.

[0063] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A downhole sensor for borehole measurement while drilling, characterized in that, The utility model relates to a downhole tool, which comprises: a probe rod part (1) for measuring while drilling; a sheath part (2) arranged on the probe rod part (1); the probe rod part (1) comprises: a rod body (101); a circuit tube (102) arranged on the rod body (101); a wireless receiving probe (103) arranged on the circuit tube (102); an external thread (104) arranged on the rod body (101); an inner sealing ring groove (105) arranged on the rod body (101); an inner sealing ring (106) arranged on the inner sealing ring groove (105); the sheath part (2) comprises: a metal sleeve (201) arranged on the rod body (101); an inner thread (202) arranged on the metal sleeve (201); an outer sealing ring groove (203) arranged on the metal sleeve (201); an outer sealing ring (204) arranged on the outer sealing ring groove (203); an air nozzle (207) arranged on the metal sleeve (201).

2. A downhole sensor for borehole surveying while drilling a borehole according to claim 1, characterized in that, The outer sealing ring (204) is internally provided with a groove (205) corresponding to the inner sealing ring (106), the outer sealing ring (204) is of a hollow structure, and the outer sealing ring (204) is externally provided with an air receiving port (206) in communication with the air nozzle (207).

3. A downhole sensor for borehole surveying while drilling a borehole according to claim 2, characterized in that, The rod body (101) is provided with a first wrench clamping groove (107).

4. A downhole sensor for borehole surveying while drilling a borehole according to claim 3, characterized in that, The metal sleeve (201) is provided with a second wrench clamping groove (208) at an end portion.

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