CN210685880U - Auxiliary device for pressurized water experiment - Google Patents
Auxiliary device for pressurized water experiment Download PDFInfo
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- CN210685880U CN210685880U CN201921540482.4U CN201921540482U CN210685880U CN 210685880 U CN210685880 U CN 210685880U CN 201921540482 U CN201921540482 U CN 201921540482U CN 210685880 U CN210685880 U CN 210685880U
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Abstract
The utility model relates to a drilling construction technical field, concretely relates to an auxiliary device for pressurized-water experiment. The auxiliary device for the pressurized-water experiment provided by the embodiment of the utility model comprises a drill rod joint and a casing joint; when the water injection test device is used, a driving drill rod and an in-hole drill rod of a drilling machine are separated, the driving drill rod and the in-hole drill rod are in threaded connection through a first screw thread, a sleeve joint is in threaded connection with a wellhead sleeve, water is injected into the driving drill rod through a slurry injection pump, the driving drill rod is communicated with a rod body of the drill rod joint and enters the sleeve joint through a water outlet hole in the rod body, the sleeve joint is in threaded connection with the wellhead sleeve through a third screw thread, and water can be injected into the wellhead sleeve to perform a water injection test; compared with the existing drilling and water pressing experiment mode, the operation personnel do not need to start and descend during the water pressing experiment, so that a large amount of operation time is saved, the operation efficiency can be improved, the construction period is shortened, and meanwhile, the unnecessary loss of the drilling tool can be reduced.
Description
Technical Field
The utility model relates to a drilling construction technical field, concretely relates to an auxiliary device for pressurized-water experiment.
Background
In the drilling process, a water pressing test is carried out every 50-80 meters of drilling according to the technical requirements, wherein the water pressing test is a penetration test carried out in a drill hole, a plug isolates the drill hole into a hole section with a certain length, then water is pressed into the hole section at a certain pressure, the press-in flow under the corresponding pressure is measured, and the water permeability of rocks in the hole section is represented by the press-in flow value of the unit test section at a certain force; at present, in the drilling process, a drill rod needs to be lifted out of a drill hole, a well mouth is sealed, and then water is injected into a well mouth sleeve through a grouting pump to carry out a water pressing experiment; because the operation of drilling up and down is required to be carried out when the pressurized-water experiment is carried out every time, and the operation of several hours is required for drilling up and down every time, the operation time is greatly increased, the labor intensity of operators is increased, the construction period is prolonged, the abrasion of a drilling machine and a drilling tool is accelerated, and the construction cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses (one) the technical problem that solve is: at present, when the pressurized-water experiment is carried out in drilling construction, the drilling machine needs to be started and lowered every time, so that the construction period and the labor intensity of operators are increased, and the loss of the drilling machine and a drilling tool is accelerated.
(II) technical scheme
In order to solve the above technical problems, an embodiment of the present invention provides an auxiliary device for a pressurized-water test, which comprises a drill rod joint and a casing joint,
the drill rod joint comprises a rod body, the interior of the rod body is hollow, two ends of the rod body are opened, a first screw thread is arranged at the upper end of the rod body, and a second screw thread is arranged at the lower end of the rod body;
the sleeve joint is sleeved on the rod body and fixedly connected with the rod body, a containing cavity with an open lower end is formed between the sleeve joint and the rod body, a water outlet hole communicated with the containing cavity is formed in the rod body, and a third screw thread is arranged at the lower end of the sleeve joint.
According to an embodiment of the present invention, the sleeve joint comprises a cover body and a cylinder body with openings at both ends, the cover body is fixed at the opening at the upper end of the cylinder body, the cover body is provided with a through hole, and the inner diameter of the through hole is matched with the outer diameter of the rod body; the cover body, the cylinder body and the rod body form the accommodating cavity with an opening at the lower end.
According to the utility model discloses an embodiment, the lid with barrel formula structure as an organic whole.
According to an embodiment of the present invention, the drill rod joint is made of E75 and above steel grade, and the casing joint is made of J55 and above steel grade.
According to the utility model discloses an embodiment, the inner wall of through-hole with the outer wall welded fastening of the body of rod.
According to the utility model discloses an embodiment, the apopore is equipped with a plurality ofly, and is a plurality of the apopore certainly the outer wall evenly distributed of body of rod circumference.
Has the advantages that: the auxiliary device for the pressurized-water experiment provided by the embodiment of the utility model comprises a drill rod joint and a casing joint; when the water injection test device is used, a driving drill rod part rod and an in-hole drill rod of a drilling machine are separated, the driving drill rod part rod and the in-hole drill rod are in threaded connection through a first screw thread, a sleeve joint is in threaded connection with a wellhead sleeve, water is injected into the driving drill rod through a slurry injection pump, the driving drill rod is communicated with a rod body of the drill rod joint and enters the sleeve joint through a water outlet hole in the rod body, the sleeve joint is in threaded connection with the wellhead sleeve through a third screw thread, and water can be injected into the wellhead sleeve to perform a water injection test; compared with the existing drilling water pressing experiment mode, the drilling rod is not required to be completely taken out and put in by an operator during a water pressing experiment, a large amount of operation time is saved, the operation efficiency is improved, the construction period is shortened, meanwhile, unnecessary loss of a drilling tool can be reduced, and the construction cost is saved.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an auxiliary device for a pressurized water experiment according to an embodiment of the present invention.
Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is as follows:
1. drill rod joint, 11, the body of rod, 12, first screw thread, 13, second screw thread, 14, apopore, 2, casing joint, 21, barrel, 22, lid, 23, through-hole, 24, hold the cavity.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
As shown in fig. 1, an embodiment of the present invention provides an auxiliary device for a water pressure test, including a drill pipe joint 1 and a casing joint 2, wherein the drill pipe joint 1 includes a rod body 11, the rod body 11 is hollow and has two open ends, a first screw thread 12 is disposed at an upper end of the rod body 11, and a second screw thread 13 is disposed at a lower end of the rod body 11; the sleeve joint 2 is sleeved on the rod body 11 and fixedly connected with the rod body 11, a containing cavity 24 with an opening at the lower end is formed between the sleeve joint 2 and the rod body 11, a water outlet hole 14 communicated with the containing cavity 24 is formed in the rod body 11, and a third screw thread is arranged at the lower end of the sleeve joint 2.
The drill rod comprises an active drill rod connected with the stopper and an in-hole drill rod positioned in the drill hole, and the active drill rod is in transmission connection with the in-hole drill rod; when a water injection test is carried out, water needs to be injected into a sleeve on the outer side of a drill rod, so that the whole drill rod needs to be completely taken out firstly when the water injection test is carried out in the prior art, the driving drill rod and the drill rod in the hole are separated, the drill rod in the hole is taken out and placed in a hollow position, then water is injected into the sleeve through a grouting pump and a sleeve joint with a high-pressure pipeline, if the driving drill rod and the drill rod in the hole are directly separated for water injection without taking the drill rod in the hole out, the problem that the water overflows from a sleeve opening during water pressing and cannot play a role in water pressing; therefore, the drill rod in the hole is taken out during the existing pressurized water experiment, the drill rod in the hole needs to be put back after the experiment is completed, and the process of starting and descending the drill is needed every time the pressurized water experiment is carried out, so that the loss of the drilling tool is increased, and the operation time and the operation intensity are also increased.
The auxiliary device for the pressurized-water experiment provided by the embodiment of the utility model comprises a drill rod joint 1 and a casing joint 2; when the drill rod support is used, the driving drill rod and the drill rod in the hole of the drilling machine are separated, the first screw thread 12 is in threaded connection with the driving drill rod, the second screw thread 13 is in threaded connection with the drill rod in the hole, and the second screw thread 13 is in threaded connection with the drill rod in the hole, so that the drill rod in the hole can be supported and fixed, and the drill rod in the hole is prevented from falling into the drilled hole; the casing joint 2 is in threaded connection with a wellhead casing, water is injected into the driving drill rod through the grouting pump, the driving drill rod is communicated with a rod body of the drill rod joint 1, the water injected by the grouting pump enters the casing joint 2 through a water outlet hole 14 in the rod body, the casing joint 2 is in threaded connection with the wellhead casing through a third screw thread, water can be injected into the wellhead casing for a water pressing experiment, the auxiliary device provided by the application is in threaded connection with the drill rod and the wellhead casing when connected, and the sealing performance is better; compared with the existing drilling water pressing experiment mode, the drilling rod is not required to be completely taken out and put in by an operator during a water pressing experiment, a large amount of operation time is saved, the operation efficiency is improved, the construction period is shortened, meanwhile, unnecessary loss of a drilling tool can be reduced, and the construction cost is saved.
As shown in fig. 1, the casing joint 2 includes a cover 22 and a cylinder 21 with openings at two ends, the cover 22 is fixed at the opening at the upper end of the cylinder 21, a through hole 23 is formed in the cover 22, and the inner diameter of the through hole 23 is adapted to the outer diameter of the rod 11; the containing cavity 24 with an opening at the lower end is formed among the cover body 22, the cylinder body 21 and the rod body 11, wherein a third screw thread at the lower end of the cylinder body 21 is used for being in threaded connection with a screw thread on a wellhead sleeve. In this embodiment, the cover 22 and the barrel 21 are integrally formed, the tool joint 1 is manufactured and formed by E75 and above steel grades, the casing joint 2 is manufactured and formed by J55 and above strength steel, so as to meet the requirement of the whole auxiliary device on strength, and the inner wall of the through hole 23 is welded and fixed with the outer wall of the rod body 11, so as to ensure the strength of the whole auxiliary device. As shown in fig. 1, a plurality of water outlets 14 are arranged on the rod body 11, and the plurality of water outlets 14 are uniformly distributed in the circumferential direction of the outer wall of the rod body 11. It should be noted that, in this embodiment, the first screw thread 12, the second screw thread 13, and the third screw thread may be an internal screw thread or an external screw thread, and need to be set according to the types of the screw threads on the drill pipe and the wellhead sleeve, and the inner diameter of the drill pipe joint 1, the inner diameter of the length casing joint 2, and the length need to be set according to specific construction conditions.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides an auxiliary device for pressurized-water experiment which characterized in that: comprises a drill rod joint and a casing joint,
the drill rod joint comprises a rod body, the interior of the rod body is hollow, two ends of the rod body are opened, a first screw thread is arranged at the upper end of the rod body, and a second screw thread is arranged at the lower end of the rod body;
the sleeve joint is sleeved on the rod body and fixedly connected with the rod body, a containing cavity with an open lower end is formed between the sleeve joint and the rod body, a water outlet hole communicated with the containing cavity is formed in the rod body, and a third screw thread is arranged at the lower end of the sleeve joint.
2. The auxiliary device for a water pressure experiment according to claim 1, wherein: the sleeve joint comprises a cover body and a cylinder body with openings at two ends, the cover body is fixed at the opening at the upper end of the cylinder body, a through hole is formed in the cover body in a penetrating mode, and the inner diameter of the through hole is matched with the outer diameter of the rod body; the cover body, the cylinder body and the rod body form the accommodating cavity with an opening at the lower end.
3. The auxiliary device for a water pressure experiment according to claim 2, characterized in that: the cover body and the cylinder body are of an integrated structure.
4. The auxiliary device for a water pressure experiment according to claim 3, wherein: the drill pipe joint is manufactured from E75 and above steel grades and the casing joint is manufactured from J55 and above steel grades.
5. The auxiliary device for the pressurized water experiment according to claim 4, characterized in that: the inner wall of the through hole is welded and fixed with the outer wall of the rod body.
6. The auxiliary device for a water pressure experiment according to claim 1, wherein: the apopore is equipped with a plurality ofly, and is a plurality of the apopore certainly the outer wall evenly distributed of body of rod circumference can set up apopore quantity according to pump capacity size and stress distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921540482.4U CN210685880U (en) | 2019-09-17 | 2019-09-17 | Auxiliary device for pressurized water experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921540482.4U CN210685880U (en) | 2019-09-17 | 2019-09-17 | Auxiliary device for pressurized water experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210685880U true CN210685880U (en) | 2020-06-05 |
Family
ID=70891383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921540482.4U Active CN210685880U (en) | 2019-09-17 | 2019-09-17 | Auxiliary device for pressurized water experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210685880U (en) |
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2019
- 2019-09-17 CN CN201921540482.4U patent/CN210685880U/en active Active
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