CN210919028U - Pressure testing device of blowout preventer full-sealing flashboard - Google Patents
Pressure testing device of blowout preventer full-sealing flashboard Download PDFInfo
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- CN210919028U CN210919028U CN201921846028.1U CN201921846028U CN210919028U CN 210919028 U CN210919028 U CN 210919028U CN 201921846028 U CN201921846028 U CN 201921846028U CN 210919028 U CN210919028 U CN 210919028U
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Abstract
The utility model discloses a pressure test device of a blowout preventer full-sealing flashboard, which comprises a pressure test jackscrew, an oil pipe hanger blanking plug, a fishing rod and a screwing pipe; the center of the pressure test jackscrew is a through hole, and high-pressure water is pumped into a sealed space formed between the totally-enclosed flashboard and the tubing hanger plug through the pressure test jackscrew to carry out pressure test on the totally-enclosed flashboard of the blowout preventer; the upper end of the tubing hanger blanking plug is provided with an L-shaped groove, the middle part of the tubing hanger blanking plug is of a hexagonal structure, and the tubing hanger blanking plug can be mounted and dismounted through the matching of the fishing rod and the screwing pipe with the L-shaped groove and the hexagonal structure. This simple and easy preventer pressure testing device easy operation is convenient, only needs a test pressure pump can accomplish the pressure testing and need not the cement pump truck, reduces the pressure testing number of times and wait to stop the time, reduces the pressure testing operating expenses to promote going on of preventer pressure testing operation high efficiency, low cost.
Description
Technical Field
The utility model belongs to the technical field of oil gas well borehole operation technique and specifically relates to a pressure testing device that is used for preventer full sealing flashboard of borehole operation well head.
Background
In the well completion construction process of oil and gas wells, if a pipe string is pulled out for construction, blowout preventers are required to be installed. In order to ensure that the blowout preventer plays a good sealing role in emergency accidents such as overflow, the sealing effect of the full-closed and semi-closed flashboards of the blowout preventer is required to be tested after the blowout preventer is installed at a wellhead, namely, the pressure test of the blowout preventer is carried out.
At present, in the existing pressure test process, under the condition that a pipe column and an oil pipe hanger are arranged in a well, if the pipe column is not moved, the pressure test can be carried out on a semi-seal flashboard of a blowout preventer only by using a pressure test short section, if a full-seal flashboard is required to be tested, the oil pipe hanger needs to be lifted out and detached, a pressure test plug is connected, if more pipe columns are arranged in the well, the bearing capacity of the pressure test plug is insufficient, and the risk that the pipe column falls into the well exists; therefore, at present, the original well pipe column is taken out by re-killing the well after the pressure test of the half-and-half-sealed gate plate is qualified, the pressure test is carried out on the full-sealed gate plate under the empty well tubular state, the sealing effect of the pressure test plug is not good under the influence of the quality of the pressure test plug and the inner wall of the shaft, and repeated pressure test is needed, so that the equal stopping time of the empty well tube is increased by the pressure test mode, the pressure test is not finished by the full-sealed gate plate, and the longer the time of the empty well tube is, the greater the well control risk is; the original well pipe column of a high-pressure oil-gas well and a shallow gas well is in a drilling clamping state or a state that a packer is not unsealed, and the pipe column is lifted up to unload an oil pipe hanger to install a pressure testing plug, so that great well control risks exist for pressure testing of a totally-enclosed flashboard of a blowout preventer, so that the conventional pressure testing construction of the blowout preventer has the defects of complex working procedures, well control hidden dangers, potential safety hazards, long waiting time and the like, and the construction cost is high.
Therefore, the blowout preventer pressure testing device which is reasonable and compact in structure, safe and reliable to use and simple and efficient in pressure testing is urgently needed, the full-sealing gate plate and the half-sealing gate plate of the blowout preventer are subjected to one-step pressure testing under the condition that a tubular column is not moved, so that well control risks and safety risks are reduced, the pressure testing times are reduced, the stopping time is shortened, and the pressure testing construction cost is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above-mentioned technical problem and the pressure testing device of the simple and easy efficient preventer full seal flashboard of compact structure, safe and reliable, pressure testing that provide is solved.
In order to solve the technical problem, the utility model discloses a following technical scheme: a pressure testing device of a blowout preventer full-seal flashboard comprises a pressure testing jackscrew, an oil pipe hanger blanking plug, a fishing rod and a screwing pipe, wherein the lower end of the oil pipe hanger blanking plug is a thickened oil pipe male buckle connected with an oil pipe hanger, the upper end of the oil pipe hanger blanking plug is a cylinder, two opposite sides of the side wall of the cylinder are respectively provided with a vertical L-shaped groove, the L-shaped grooves comprise a vertical groove, a horizontal groove and an ascending groove, the two vertical grooves are positioned at two ends of the cylinder with the same diameter, the two ascending grooves are positioned at two ends of the cylinder with the same diameter, and the middle of the oil pipe hanger blanking plug is of a hexagonal structure; the upper end of the fishing rod is welded with a handle, the lower part of the fishing rod is symmetrically welded with two limiting rods, the bottom of the fishing rod is hemispherical, and the diameter of each limiting rod is slightly smaller than the width of the vertical groove and the horizontal groove and is matched with the top of the ascending groove; the upper end of the screwing pipe is a flat tubing coupling, and the lower end of the screwing pipe is an inner hexagonal hole which is matched with the hexagonal structure of the middle part of the tubing hanger plug; the pressure testing jackscrew comprises a jackscrew rod, sealing rubber bowls, sealing copper gaskets and sealing check rings, one end of the jackscrew rod is connected to a pipeline of a pressure testing pump through threads, the other end of the jackscrew rod is connected with the sealing check rings through threads, a through hole is formed in the middle of the jackscrew rod, the sealing rubber bowls and the two sealing copper gaskets are sleeved on a polished rod part of the jackscrew rod, the sealing rubber bowls and the sealing copper gaskets are clamped in the middle of the sealing rubber bowls, and the sealing rubber bowls and the sealing copper gaskets are limited on the jackscrew rod by the sealing check rings.
The number of the sealing rubber bowls is 5.
The handles are two handles which are symmetrically welded and perpendicular to the fishing rod.
The limiting rod is a round rod, the top of the ascending groove is provided with an arc, and the limiting rod is matched with the arc.
The utility model has the advantages that: this simple and easy preventer pressure testing device squeezes into the confined space that forms between totally enclosed flashboard and the tubing hanger blanking plug with the high pressure water through the pressure testing jackscrew, carries out the pressure testing to the totally enclosed flashboard of preventer, can realize the installation and the dismantlement of tubing hanger blanking plug through fishing rod and the cooperation of twisting the pipe, and easy operation is convenient, only need a test pressure pump can accomplish the pressure testing and need not the cement pump truck, reduce the pressure testing number of times and wait to stop the time, reduce pressure testing construction cost, thereby promote the going on of preventer pressure testing operation high efficiency, low cost.
Drawings
FIG. 1 is a pressure test diagram for closing the totally-enclosed flashboard of the blowout preventer;
fig. 2 is a full sectional view of the blanking plug of the tubing hanger under the fishing rod of the utility model;
FIG. 3 is a full sectional view of the tubing hanger plug for installing the twisted pipe according to the present invention;
FIG. 4 is a side view of the middle pressure test jackscrew of the present invention;
FIG. 5 is a full sectional view of the middle pressure test jackscrew of the utility model;
fig. 6 is a side view of the jack screw of the present invention;
fig. 7 is a side view of the sealing rubber bowl of the present invention;
fig. 8 is a front view of the oil pipe hanging plug of the utility model;
fig. 9 is a side view of the oil pipe hanging plug of the present invention;
fig. 10 is a side view of the fishing rod of the present invention;
fig. 11 is a side view of the assembly of the fishing rod and tubing hanger plug of the present invention.
FIG. 12 is a side view of the twist tube of the present invention;
fig. 13 is a full sectional view of the screw tube according to the present invention.
In the figure: 1. a blowout preventer; 2. a totally enclosed gate plate; 3. four-way connection; 4. hanging the oil pipe; 5. pressing a top thread; 5-1 jacking screw rod; 5-2, sealing a rubber bowl; 5-3, sealing the copper gasket; 5-4, sealing a check ring; 6. a tubing hanger blanking plug; 6-1, vertical grooves; 6-2, horizontal groove; 6-3, an ascending groove; 6-4, thickening the male buckle of the oil pipe; 7. a fishing rod; 7-1, a handle; 7-2, a limiting rod; 8. and screwing the pipe.
Detailed Description
The invention will be described in further detail with reference to the following drawings and detailed description:
as shown in fig. 1-13, the pressure testing device of the blowout preventer full-seal gate plate of the present invention comprises a pressure testing jackscrew 5, an tubing hanger plug 6, a fishing rod 7 and a screwing pipe 8, wherein the lower end of the tubing hanger plug 6 is a thickened tubing male buckle 6-4 connected with the tubing hanger, the upper end is a cylinder, two opposite sides of the side wall of the cylinder are respectively provided with a vertical L-shaped groove, the "L" shaped grooves comprise a vertical groove 6-1, a horizontal groove 6-2 and an ascending groove 6-3, the two vertical grooves 6-1 are located at two ends of the cylinder with the same diameter, the two ascending grooves 6-3 are located at two ends of the cylinder with the same diameter, and the middle of the tubing hanger plug 6 is of a hexagonal structure; the upper end of the fishing rod 7 is welded with a handle 7-1, the lower part of the fishing rod is symmetrically welded with two limiting rods 7-2, the bottom of the fishing rod is hemispherical, and the diameter of each limiting rod 7-2 is slightly smaller than the width of the vertical groove 6-1 and the horizontal groove 6-2 and is matched with the top of the upper groove 6-3; the upper end of the screwing pipe 8 is a flat tubing coupling, and the lower end is an inner hexagonal hole which is matched with the hexagonal structure of the middle part of the tubing hanger blanking plug 6; the pressure test jackscrew 5 comprises a jackscrew rod 5-1, sealing rubber bowls 5-2, sealing copper gaskets 5-3 and sealing check rings 5-4, one end of the jackscrew rod 5-1 is connected into a pipeline of a pressure test pump through threads, the other end of the jackscrew rod is connected with the sealing check rings 5-4 through threads, a through hole is formed in the middle of the jackscrew rod, the sealing rubber bowls 5-2 and the two sealing copper gaskets 5-3 are sleeved on a polished rod part of the jackscrew rod 5-1, the sealing rubber bowls 5-2 and the sealing copper gaskets 5-3 are clamped in the middle of the two sealing copper gaskets 5-3, and the sealing rubber bowls 5-2 and the sealing copper gaskets 5-3 are limited on the jackscrew rod 5-1 by the sealing check rings.
5 sealing rubber bowls 5-2 are provided in total.
The handles 7-1 are two handles which are symmetrically welded and perpendicular to the fishing rod 7.
The limiting rod 7-2 is a round rod, the top of the upward groove 6-3 is provided with an arc, and the limiting rod 7-2 is matched with the arc.
Specifically, the pressure test jackscrew 5 comprises a jackscrew rod 5-1, a sealing rubber bowl 5-2, a sealing copper gasket 5-3 and a sealing check ring 5-4. A polished rod of the jackscrew rod 5-1 is sequentially sleeved with a sealed copper pad 5-3, 5 sealed rubber bowls 5-2 and a sealed copper pad 5-3, and limited by a sealing retainer ring 5-4. The upper end of the tubing hanger blanking plug 6 is provided with an L-shaped groove which comprises a vertical groove 6-1, a horizontal groove 6-2 and an ascending groove 6-3. The bottom end is connected with an oil pipe hanger 4 through an oil pipe buckle, and the middle part is of a hexagonal structure. One end of the fishing rod 7 is symmetrically welded with two handles 7-1, and the other end is symmetrically welded with two limiting rods 7-2. One end of the screwing pipe 8 is a 2-7/8' flat tubing coupling, and the other end is an inner hexagonal hole which is matched with the hexagonal structure at the middle part of the tubing hanger blanking plug 6.
The simple blowout preventer pressure testing device has the working process that:
(1) installing a blowout preventer 1, installing a pressure test jackscrew 5 on a cross 3, and connecting the pressure test jackscrew 5 to a pressure test pump pipeline;
(2) the tubing hanger blanking plug 6 is placed in a well by using the fishing rod 7, the fishing rod 7 is placed downwards, the limiting rod 7-2 enters the horizontal groove 6-2 from the upward groove 6-3, then the tubing hanger blanking plug 6 is propped against the vertical groove 6-1, the handle 7-1 is rotated clockwise, and the tubing hanger blanking plug 6 is buckled on the tubing hanger 4;
(3) taking out the fishing rod 7, descending the screwing pipe 8, clamping the hexagonal structure of the tubing hanger blanking plug 6, clockwise rotating the screwing pipe 8 by using a pipe wrench, and screwing the tubing hanger blanking plug 6 on the tubing hanger 4;
(4) taking out the screwing pipe 8, filling clear water into the blowout preventer 1, closing the totally-enclosed flashboard 2 of the blowout preventer, and starting pressure testing;
(5) after the pressure test is finished, the pressure is relieved through the pressure test jackscrew 5, and the full-seal flashboard 2 is opened;
(6) the screwing pipe 8 is put in, after the hexagonal structure of the tubing hanger blanking plug 6 is clamped, the screwing pipe 8 is rotated anticlockwise by using a pipe wrench, and the tubing hanger blanking plug 6 is detached;
(7) the screwing pipe 8 is taken out, the fishing rod 7 is put in, the limiting rod 7-2 enters the horizontal groove 6-2 from the vertical groove 6-1, the tubing hanger blanking plug 6 is propped against the ascending groove 6-3, the handle 7-1 is rotated anticlockwise, and the tubing hanger blanking plug 6 is lifted up until the tubing hanger blanking plug can be taken out.
(8) And installing a pressure test nipple, detaching a pressure test jackscrew, installing an original well jackscrew, and closing the semi-closed flashboard to simultaneously perform pressure test detection on the semi-closed flashboard and the jackscrew of the blowout preventer.
In summary, the present invention is not limited to the above embodiments, and those skilled in the art can provide other embodiments within the technical teaching of the present invention, but these embodiments are included in the scope of the present invention.
Claims (4)
1. A pressure testing device of a blowout preventer full-seal flashboard is characterized by comprising a pressure testing jackscrew (5), an oil pipe hanger blanking plug (6), a fishing rod (7) and a screwing pipe (8), wherein the lower end of the oil pipe hanger blanking plug (6) is provided with a thickened oil pipe male buckle (6-4) connected with an oil pipe hanger, the upper end of the oil pipe hanger blanking plug is provided with a cylinder, two opposite sides of the side wall of the cylinder are respectively provided with a vertical L-shaped groove, the L-shaped grooves comprise vertical grooves (6-1), horizontal grooves (6-2) and uplink grooves (6-3), the two vertical grooves (6-1) are positioned at two ends of the cylinder with the same diameter, the two uplink grooves (6-3) are positioned at two ends of the cylinder with the same diameter, and the middle of the oil pipe hanger blanking plug (6) is of a hexagonal; the upper end of the fishing rod (7) is welded with a handle (7-1), the lower part of the fishing rod is symmetrically welded with two limiting rods (7-2), the bottom of the fishing rod is hemispherical, and the diameter of each limiting rod (7-2) is slightly smaller than the width of the vertical groove (6-1) and the horizontal groove (6-2) and is matched with the top of the ascending groove (6-3); the upper end of the screwing pipe (8) is a flat tubing coupling, and the lower end of the screwing pipe is an inner hexagonal hole which is matched with the hexagonal structure of the middle part of the tubing hanger blanking plug (6); the pressure test jackscrew (5) comprises a jackscrew rod (5-1), sealing rubber bowls (5-2), sealing copper gaskets (5-3) and sealing check rings (5-4), one end of the jackscrew rod (5-1) is connected into a pipeline of a pressure test pump through threads, the other end of the jackscrew rod is connected with the sealing check rings (5-4) through threads, a through hole is formed in the middle of the jackscrew rod, the sealing rubber bowls (5-2) and the two sealing copper gaskets (5-3) are sleeved on a polished rod part of the jackscrew rod (5-1), the sealing rubber bowls (5-2) and the sealing copper gaskets (5-3) are limited on the jackscrew rod (5-1) by the sealing check rings (5-4), and the sealing rubber bowls (5-2) and the sealing copper gaskets (5-3) are clamped on the jackscrew rod (5-1).
2. The pressure test device for the totally-enclosed ram of the blowout preventer according to claim 1, wherein the number of the sealant bowls (5-2) is 5.
3. The pressure test device for the totally-enclosed ram of the blowout preventer according to claim 1, wherein the handles (7-1) are two handles which are symmetrically welded and perpendicular to the fishing rod (7).
4. The pressure testing device for the totally-enclosed ram of the blowout preventer according to claim 1, wherein the limiting rod (7-2) is a round rod, the top of the ascending groove (6-3) is provided with an arc, and the limiting rod (7-2) is matched with the arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921846028.1U CN210919028U (en) | 2019-10-30 | 2019-10-30 | Pressure testing device of blowout preventer full-sealing flashboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921846028.1U CN210919028U (en) | 2019-10-30 | 2019-10-30 | Pressure testing device of blowout preventer full-sealing flashboard |
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| Publication Number | Publication Date |
|---|---|
| CN210919028U true CN210919028U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921846028.1U Active CN210919028U (en) | 2019-10-30 | 2019-10-30 | Pressure testing device of blowout preventer full-sealing flashboard |
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| CN (1) | CN210919028U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090216A (en) * | 2021-03-17 | 2021-07-09 | 成都叁能锐达能源科技有限公司 | Blowout prevention throwing and fishing structure and method for underwater Christmas tree |
| CN115822499A (en) * | 2022-11-08 | 2023-03-21 | 无锡中地钻探装备有限公司 | Horizontal hole fisher throwing propulsion device |
-
2019
- 2019-10-30 CN CN201921846028.1U patent/CN210919028U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090216A (en) * | 2021-03-17 | 2021-07-09 | 成都叁能锐达能源科技有限公司 | Blowout prevention throwing and fishing structure and method for underwater Christmas tree |
| CN115822499A (en) * | 2022-11-08 | 2023-03-21 | 无锡中地钻探装备有限公司 | Horizontal hole fisher throwing propulsion device |
| CN115822499B (en) * | 2022-11-08 | 2024-05-31 | 无锡中地钻探装备有限公司 | Horizontal hole fisher throwing propulsion device |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210830 Address after: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd., No. 83, Second Street, economic and Technological Development Zone, Binhai New Area, Tianjin, 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |