Rope fisher for inclinometer while drilling

Abstract

The utility model discloses a drilling inclinometer rope fisher which comprises a fishing hook, the fishing hook is composed of a front clamping hook single body and a back clamping hook single body, and the inner sides of the bottoms of the two clamping hook single bodies form a first guide part. The first guiding part is used for guiding the top of the inclinometer while drilling into a clamping area, located on the upper portion of the first guiding part, in the fishing hook, the inner sides of the tops of the two clamping hook single bodies are connected through a spring, a second guiding part is formed by the outer vertical faces of the tops, and the second guiding part is used for guiding a safety disengaging mechanism into the top of the fishing hook. The safe releasing mechanism releases the inclinometer while drilling by extruding the two clamping hook single bodies inwards, the outer side of the salvage hook is covered with a salvage frame, and the top of the salvage frame is connected with a salvage rod. According to the rope fisher, the rope fisher can be rapidly put down to fish the while-drilling instrument when the while-drilling instrument cannot be taken out due to drill burying, drill jamming and the like, the fisher and the instrument can be separated at any time when the rope fisher is used in cooperation with a safe releasing and clamping mechanism, and application is flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling and directional drilling, in particular to a rope salvage device for a while-drilling inclinometer. Background Art

[0002] Inclinometers while drilling (MWD) are a common directional drilling instrument used in directional drilling operations. Due to the various drilling design requirements, vertical wells, deflected wells, and branch wells are all adjusted using MWDs to achieve the desired wellbore and trajectory.

[0003] During the drilling process, the drill has to be pulled out to check the instrument due to battery depletion, abnormal instrument signals or even no signals. In addition, huge losses are caused by the inability to remove the buried drilling instruments. This problem has not been effectively solved for a long time. The drill has to be pulled out repeatedly due to instrument problems, which is time-consuming and labor-intensive but does not create benefits. In addition, the entire set of instruments and equipment is lost due to accidents. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a rope salvage device for a downhole inclinometer. In the event of an accident where the drill is buried, stuck, or the like and the downhole instrument cannot be retrieved, the rope salvage device can be quickly lowered to salvage the downhole instrument. The salvage efficiency is high, and when used in conjunction with a safety release mechanism, the salvage device can be separated from the instrument at any time, thereby providing flexible application.

[0005] A rope salvage device for a while-drilling inclinometer comprises a salvage hook, which is composed of two front and back clamping hook units. The inner sides of the bottoms of the two clamping hook units form a guide portion 1, which is used to guide the top of the while-drilling inclinometer into the clamping area located above the guide portion 1 in the salvage hook. The inner sides of the tops of the two clamping hook units are connected by a spring, and the outer surfaces of the tops form a guide portion 2, which is used to guide a safety release mechanism into the top of the salvage hook. The safety release mechanism releases the while-drilling inclinometer by squeezing the two clamping hook units inward. A salvage frame is provided on the outer cover of the salvage hook, and a salvage rod is connected to the top of the salvage frame.

[0006] As a preferred embodiment of the above technical solution, the middle parts of the two clamp hook units are connected by a spring pin.

[0007] As a preferred embodiment of the above technical solution, the salvage hook is limited in position within the salvage frame by a positioning pin, and a positioning sleeve used in conjunction with the positioning pin is fixedly mounted on the salvage frame.

[0008] As a preferred embodiment of the above technical solution, a movable gap for opening and closing the salvage hook is reserved between the salvage frame and the salvage hook.

[0009] As a preferred embodiment of the above technical solution, the guide portion is in a trumpet shape adapted to the top of the while drilling inclinometer.

[0010] As a preferred embodiment of the above technical solution, the second guide portion is arc-shaped.

[0011] As a preferred embodiment of the above technical solution, the salvage rod is a hollow structure and is made of alloy steel.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The rope salvage device can be used when the instrument signal is abnormal, the battery is dead, the drill bit is buried, or the drill bit is broken, which can greatly reduce the time for drilling and reduce losses in special circumstances. When used in conjunction with the safety release mechanism, the salvage device and the instrument can be separated at any time, and can even be lowered into the drilling instrument when it is about to be placed, thus reducing the auxiliary time for drilling and retrieving. In addition, in the event of an accident such as a buried drill bit or a stuck drill bit, where the drilling instrument cannot be pulled out, the rope salvage device can be quickly lowered to retrieve the drilling instrument, thereby minimizing the loss caused by the accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 It is a structural diagram of the safe card removal mechanism.

[0016] The accompanying drawings are marked as follows: 1-fishing hook, 2-hooking hook unit, 3-guide part 1, 4-clamping area, 5-spring, 6-guide part 2, 7-fishing frame, 8-fishing rod, 9-spring pin, 10-locating pin, 11-locating sleeve. DETAILED DESCRIPTION

[0017] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0018] The present invention is described in further detail below with reference to the accompanying drawings:

[0019] like Figure 1The illustrated embodiment shows a rope salvage device for a while-drilling inclinometer, comprising a salvage hook 1, which is composed of two clamping hook units 2, one in front and one in the back. A guide portion 3 is formed on the inner sides of the bottoms of the two clamping hook units 2. The guide portion 3 is used to guide the top of the while-drilling inclinometer into the clamping area 4 located above the guide portion 3 in the salvage hook 1. The inner sides of the tops of the two clamping hook units 2 are connected by a spring 5, and a guide portion 2 is formed on the outer surface of the top. The guide portion 2 6 is used to guide a safety release mechanism into the top of the salvage hook 1. The safety release mechanism releases the while-drilling inclinometer by squeezing the two clamping hook units 2 inward. A salvage frame 7 is provided on the outer cover of the salvage hook 1, and a salvage rod 8 is connected to the top of the salvage frame 7.

[0020] In this embodiment, the middle parts of the two clip hook units 2 are connected by a spring pin 9 .

[0021] In this embodiment, the salvage hook 1 is limited in position within the salvage frame 7 by a positioning pin 10 , and a positioning sleeve 11 used in conjunction with the positioning pin 10 is fixedly mounted on the salvage frame 7 .

[0022] In this embodiment, a movable gap is reserved between the salvage frame 7 and the salvage hook 1 for the salvage hook 1 to open and close.

[0023] In this embodiment, the guide portion 3 is in a trumpet shape adapted to the top of the while drilling inclinometer.

[0024] In this embodiment, the second guide portion 6 is in an arc shape.

[0025] In this embodiment, the salvage rod 8 is a hollow structure and is made of alloy steel.

[0026] The working principle of this embodiment is as follows.

[0027] When the salvage device is used to salvage a while-drilling inclinometer, the head of the while-drilling inclinometer slides through the guide portion 3 into the clamping area 4 located above the guide portion 3 in the salvage hook 1, thereby clamping the while-drilling inclinometer. The entire while-drilling inclinometer can be salvaged by simultaneously retracting and releasing the wire rope by the pneumatic winch or the electric winch and raising the salvage rod 8.

[0028] If the instrument cannot be lifted during or during the lifting process, the safety release mechanism can be lowered. The safety release mechanism slides in through the guide part 26 and squeezes the top of the two sets of clamping hooks 2 inwards, so that the bottom of the two sets of clamping hooks 2 open, and the salvage device is separated from the drilling inclinometer without affecting the use of other methods to salvage or pull out the drill. The safety release mechanism is a hollow cylindrical mechanism with a spring groove and a rope groove, such as Figure 2 The above is the prior art, and its structure and working principle are not described in detail here.

[0029] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A rope fisher for a while-drilling inclinometer, characterized by: The utility model comprises a salvage hook, which is composed of two clamping hook monomers in front and back. The inner sides of the bottom of the two clamping hook monomers form a guide part 1, and the guide part 1 is used to guide the top of the drilling inclinometer into the clamping area located above the guide part 1 in the salvage hook. The inner sides of the tops of the two clamping hook monomers are connected by a spring, and the outer surface of the top forms a guide part 2. The guide part 2 is used to guide the safety release mechanism to the top of the salvage hook. The safety release mechanism releases the drilling inclinometer by squeezing the two clamping hook monomers inward. The outer cover of the salvage hook is provided with a salvage frame, and the top of the salvage frame is connected to a salvage rod.

2. The rope fisher for a while drilling inclinometer according to claim 1, characterized in that: The middle parts of the two clamping hook units are connected by a spring pin.

3. The rope fisher for a while drilling inclinometer according to claim 1, characterized in that: The salvage hook is limited in the salvage frame by a positioning pin, and a positioning sleeve used in conjunction with the positioning pin is fixedly installed on the salvage frame.

4. The rope fisher for a while drilling inclinometer according to claim 1, characterized in that: A movable gap for opening and closing the salvage hook is reserved between the salvage frame and the salvage hook.

5. The rope fisher for a while drilling inclinometer according to claim 1, characterized in that: The first guide portion is in a trumpet shape adapted to the top of the while drilling inclinometer.

6. The rope fisher for a while drilling inclinometer according to claim 1, characterized in that: The second guide portion is in an arc shape.

7. The rope fisher for a while drilling inclinometer according to claim 1, characterized in that: The salvage rod is a hollow structure and is made of alloy steel.

Images