Auxiliary casing running device for geological drilling

Abstract

The utility model discloses a casing running auxiliary device for geological drilling, and belongs to the field of geological drilling engineering. Comprising a clamping assembly which comprises two symmetrically arranged clamping plates; a groove is formed in the clamping plate in the length direction of the clamping plate, the groove is used for fixing a sleeve to be put and a put sleeve, and a plurality of through holes are formed in the clamping plate; the adjusting assembly comprises a plurality of adjusting devices; each adjusting device comprises two nuts and a double-screw bolt, the double-screw bolts sequentially penetrate through the through holes of the two clamping plates, and the two nuts are arranged on the double-screw bolts in a threaded mode and located on the outer sides of the two clamping plates. The device can be operated by only one person, so that human resources are saved; the situation that two persons above and below the derrick are not well matched when supporting the pipe is avoided, and the operation efficiency is improved; by means of the device, the situation that falling accidents are likely to happen when operators on a derrick centralize the casing is avoided, and the probability of occurrence of construction safety accidents is reduced.

Description

Technical Field

[0001] The utility model relates to the field of geological drilling engineering, in particular to a casing auxiliary device for geological drilling. Background Art

[0002] In the field of drilling production, when the formation reaches the target layer, casing needs to be lowered to avoid well wall collapse. During the welding process, when two casings are butt-welded, at least two people are required to align them. One person on the derrick aligns the upper end of the casing, and one person under the derrick aligns the lower end of the casing. Only when the two people cooperate well can the casing be aligned, and then the contact surfaces of the two aligned casings are spot welded to ensure the welding quality.

[0003] Although artificial pipe support is simple and easy, it also has many shortcomings:

[0004] 1) During the pipe supporting operation, at least three people including the welder are required to cooperate at the same time, which wastes manpower.

[0005] 2) The distance between the upper and lower parts of the derrick is too long, and coupled with the mechanical noise, the two people working together on the upper and lower parts of the derrick often find it difficult to understand each other's intentions, resulting in difficulties in coordinated work and low work efficiency.

[0006] 3) Workers on the derrick are prone to falling when straightening the casing, which makes the operation very dangerous. Utility Model Content

[0007] The utility model aims to provide a highly efficient geological drilling casing auxiliary device which can be operated by only one person.

[0008] In order to solve the above technical problems, the utility model provides a geological drilling casing auxiliary device, comprising:

[0009] The clamping assembly comprises two symmetrically arranged clamping plates; the clamping plates are provided with grooves along their length direction, the grooves are used to fix the casing to be installed and the installed casing, and the clamping plates are provided with a plurality of through holes;

[0010] The adjusting assembly comprises a plurality of adjusting devices; each group of the adjusting devices comprises two nuts and a stud, the studs pass through the through holes of the two clamping plates in sequence, and the two nuts are threadedly arranged on the studs and are located on the outsides of the two clamping plates.

[0011] Preferably, a hollow through-tube is fixedly installed in the through-hole of the clamping plate;

[0012] The stud passes through the hollow through tube.

[0013] Preferably, the diameter of the stud is smaller than the diameter of the hollow through tube;

[0014] The diameter of the nut is greater than the diameter of the hollow through tube.

[0015] Preferably, the hollow through pipe is a steel pipe.

[0016] Preferably, the number of the adjustment devices is four groups;

[0017] Each of the clamping plates is provided with four through holes.

[0018] Preferably, the four through holes are respectively located at four corners of the clamping plate.

[0019] Preferably, the clamping plate is a channel steel.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] (1) This device only needs one person to operate, saving human resources;

[0022] (2) The device can be operated by only one person, which avoids the situation where two people on the upper and lower parts of the derrick have poor coordination when supporting the pipe, thus improving the operation efficiency;

[0023] (3) The use of this device avoids the situation where workers on the derrick are prone to falling accidents when straightening the casing, thereby reducing the probability of construction safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0025] Figure 1 The utility model is a structural schematic diagram of a casing auxiliary device for geological drilling.

[0026] In the figure: 1- casing to be lowered; 2- stud; 3- nut; 4- clamping plate; 41- groove; 42- through hole; 5- casing already lowered; 6- hollow through pipe; 7- casing welding point. DETAILED DESCRIPTION

[0027] Many specific details are described in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation disclosed below.

[0028] The terms used in one or more embodiments of this specification are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of this specification. The singular forms of "a", "said" and "the" used in one or more embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.

[0029] It should be understood that although the terms first, second, etc. may be used to describe various information in one or more embodiments of this specification, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of this specification, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0031] The utility model provides a casing auxiliary device for geological drilling, comprising:

[0032] The clamping assembly includes two symmetrically arranged clamping plates 4; the clamping plates 4 are provided with grooves 41 along their length direction, the grooves 41 are used to fix the casing 1 to be installed and the installed casing 5, and the clamping plates 4 are provided with a plurality of through holes 42;

[0033] The adjustment assembly includes a plurality of adjustment devices; each set of adjustment devices includes two nuts 3 and a stud 2, the stud 2 passes through the through holes 42 of the two clamping plates 4 in sequence, and the two nuts 3 are threadedly arranged on the stud 2 and located on the outside of the two clamping plates 4.

[0034] Preferably, the clamping plate 4 is fixedly provided with a hollow through-tube 6 in the through-hole 42;

[0035] The stud 2 passes through the hollow through-tube 6 .

[0036] Preferably, the diameter of the stud 2 is smaller than the diameter of the hollow through tube 6;

[0037] The diameter of the nut 3 is greater than the diameter of the hollow through tube 6 .

[0038] Preferably, the hollow through pipe 6 is a steel pipe.

[0039] Preferably, the number of adjustment devices is four groups;

[0040] Each clamping plate 4 is provided with four through holes 42 .

[0041] Preferably, the four through holes 42 are respectively located at the four corners of the clamping plate 4 .

[0042] Preferably, the clamping plate 4 is a channel steel.

[0043] In order to better illustrate the technical effect of the present invention, the present invention provides the following specific embodiments to illustrate the above technical process:

[0044] Embodiment 1: A casing auxiliary device for geological drilling, comprising:

[0045] The device is mainly composed of 2 channel steels (clamping plates 4) and 4 long screws (adjusting devices). 8 symmetrically distributed steel pipes (for inserting studs) are welded at the upper and lower ends of the 2 channel steels, so that the 2 channel steels can move left and right under the connection of the studs 2; the concave surfaces of the 2 channel steels are made to face each other to fix the casing, and then 4 screws are screwed on the flat ends of the 2 channel steels, that is, the studs, and the opening and closing of the channel steels are controlled by the tightness of the screws.

[0046] When inserting the casing 1 to be lowered, the device is placed between the two casings 1 to be lowered and the already lowered casing 5 to be welded;

[0047] Then, the two clamping plates 4 are tightened by adjusting the nuts 3, and the upper and lower two casings to be lowered 1 and the lowered casing 5 are aligned through the concave surface of the clamping plates 4 to form a casing welding point 7;

[0048] Then, the welding point 7 of the casing is spot welded by an electric welder to fix the casing 1 to be lowered and the lowered casing 5, and then the device is removed;

[0049] Then, the two aligned casings to be lowered 1 and the lowered casing 5 are further welded firmly and then lowered into the well.

[0050] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A casing auxiliary device for geological drilling, characterized in that: include: A clamping assembly, comprising two symmetrically arranged clamping plates (4); a groove (41) is provided on the clamping plate (4) along its length direction, the groove (41) is used to fix the casing to be installed (1) and the installed casing (5); and a plurality of through holes (42) are provided on the clamping plate (4); An adjustment assembly comprises a plurality of adjustment devices; each group of the adjustment devices comprises two nuts (3) and a stud (2), the stud (2) sequentially passing through through holes (42) of two clamping plates (4), and the two nuts (3) are threadedly arranged on the stud (2) and located on the outside of the two clamping plates (4).

2. The geological drilling casing auxiliary device according to claim 1, characterized in that: The clamping plate (4) has a hollow through pipe (6) fixedly installed in the through hole (42); The stud (2) passes through the hollow through tube (6).

3. The geological drilling casing auxiliary device according to claim 2, characterized in that: The diameter of the stud (2) is smaller than the diameter of the hollow through tube (6); The diameter of the nut (3) is greater than the diameter of the hollow through tube (6).

4. The geological drilling casing auxiliary device according to claim 3, characterized in that: The hollow through pipe (6) is a steel pipe.

5. The geological drilling casing auxiliary device according to claim 1, characterized in that: The number of the regulating devices is four groups; Each of the clamping plates (4) is provided with four through holes (42).

6. The geological drilling casing auxiliary device according to claim 5, characterized in that: The four through holes (42) are respectively located at the four corners of the clamping plate (4).

7. The geological drilling casing auxiliary device according to claim 1, characterized in that: The clamping plate (4) is a channel steel.

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