CN210858639U - High-pressure hydraulic blowout prevention box device for steel wire well testing - Google Patents
High-pressure hydraulic blowout prevention box device for steel wire well testing Download PDFInfo
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- CN210858639U CN210858639U CN201921820675.5U CN201921820675U CN210858639U CN 210858639 U CN210858639 U CN 210858639U CN 201921820675 U CN201921820675 U CN 201921820675U CN 210858639 U CN210858639 U CN 210858639U
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Abstract
The utility model provides a box-packed putting is prevented spouting by high pressure hydraulic pressure in steel wire well testing, including preventing spouting box main part, pressure indicating device, one-level hydraulic seal mechanism, second grade hydraulic seal mechanism and hydraulic transmission mechanism, pressure indicating device, one-level hydraulic seal mechanism and second grade hydraulic seal mechanism are all installed inside preventing spouting box main part, hydraulic transmission mechanism is connected with one-level hydraulic seal mechanism, second grade hydraulic seal mechanism. The beneficial effects are as follows: the front end of the blowout prevention box is connected with a pressure indicator which can monitor the pressure condition in real time; the two-stage sealing device is arranged, and the same hydraulic source is adopted, so that the condition that fluid is sprayed out when the sealing is unstable is effectively prevented, and the burst problems of single sealing instability and the like are solved; sealing device has used the mode of gluing the core from outside-in extrusion, when sealed effectual, can in time compensate after gluing the core wearing and tearing, glues the utilization ratio of core and reaches more than 85%, has reduced the consumptive material, has prolonged life, has reduced the change number of times, and the operating efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of the oil field operation and specifically relates to a box-packed putting is prevented spouting by high pressure hydraulic pressure for steel wire well testing.
Background
When the downhole operation such as oil testing, swabbing, oil bailing, sand bailing and the like of an oil field is carried out, a blowout prevention box is generally needed, the traditional blowout prevention box is single-stage sealing, the sealing effect is poor, and the field environmental pollution is serious. At present the well head prevents that the box adopts and comes control seal effect to the packing pressurization, and operating personnel need ascend a height and carry out the operation and lean on the packing box pressure cap pressurization of artificially screwing, and this kind of pure manual mode is great to the damage degree of packing, wastes time, difficultly, and personnel's operational risk is great, and packing life is short, about 15% sealing material utilization ratio, changes more troublesome, changes the frequency height, and work efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem, a high-pressure hydraulic blowout prevention box device for a steel wire test well is designed.
Realize above-mentioned purpose the technical scheme of the utility model be, a steel wire is high-pressure hydraulic pressure for well testing prevents spouting box-packed putting, including preventing spouting box main part, pressure indicating device, one-level hydraulic seal mechanism, second grade hydraulic seal mechanism and hydraulic transmission mechanism, pressure indicating device, one-level hydraulic seal mechanism and second grade hydraulic seal mechanism are all installed in preventing spouting inside the box main part, hydraulic transmission mechanism is connected with one-level hydraulic seal mechanism, second grade hydraulic seal mechanism.
The upper end in the blowout prevention box body is provided with a sliding groove, the middle in the blowout prevention box body is provided with a first-stage sealing cavity, the lower in the blowout prevention box body is provided with a second-stage sealing cavity, and the tail end of the blowout prevention box body is provided with a connector.
The pressure indicating device comprises a pressure indicator and a spring, one end of the spring is fixedly connected to the blowout preventer main body, and the tail end of the pressure indicator is fixedly connected to the other end of the spring.
The pressure indicator is provided with a limiting block, and the limiting block is embedded in a chute of the blowout prevention box main body.
The primary hydraulic sealing mechanism comprises a primary sealing rubber core and four primary hydraulic cylinders, the primary hydraulic cylinders are fixedly arranged in the primary sealing cavities, and the primary sealing rubber core is fixedly connected with the telescopic ends of the primary hydraulic cylinders.
The secondary hydraulic sealing mechanism comprises a secondary sealing rubber core and four secondary hydraulic cylinders, the secondary hydraulic cylinders are fixedly arranged in the secondary sealing cavities, and the secondary sealing rubber core is fixedly connected with the telescopic ends of the secondary hydraulic cylinders.
The hydraulic transmission mechanism comprises a hydraulic pipe, six three-way valves, a four-way valve and a five-way valve, the hydraulic pipe is connected to four primary hydraulic cylinders and four secondary hydraulic cylinders, and the six three-way valves, the four-way valve and the five-way valve are arranged on the hydraulic pipe.
Utilize the utility model discloses a steel wire is high pressure hydraulic pressure for well testing and is prevented spouting box-packed putting of technical scheme preparation, its beneficial effect is:
1. the front end of the blowout prevention box is connected with a pressure indicator which can monitor the pressure condition in real time, so that the rubber core is extruded by the hydraulic cylinder in time to seal, and the fluid is prevented from being sprayed out to cause environmental pollution.
2. The two-stage sealing device is arranged, the same hydraulic source is adopted, the sealing stability can be guaranteed, the condition that fluid is sprayed out when the sealing is unstable is effectively prevented, and the burst problems of single sealing instability and the like are solved.
3. Sealing device has used the mode of gluing the core from outside-in extrusion, when sealed effectual, can in time compensate after gluing the core wearing and tearing, glues the utilization ratio of core and reaches more than 85%, has reduced the consumptive material, has prolonged life, has reduced the change number of times, and the operating efficiency is high.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
fig. 3 is a top view structural diagram of the present invention.
In the figure: 1. a blowout preventer main body; 2. a primary hydraulic sealing mechanism; 3. a secondary hydraulic sealing mechanism; 4. a chute; 5. a primary seal cavity; 6. a secondary seal cavity; 7. a connector; 8. a pressure indicator; 9. a spring; 10. a limiting block; 11. sealing the rubber core; 12. a hydraulic cylinder; 13. a hydraulic tube; 14. a three-way valve; 15. a four-way valve; 16. a five-way valve.
Detailed Description
The following detailed description is made with reference to the accompanying drawings, and as shown in fig. 1-2, a high-pressure hydraulic blowout prevention box device for a steel wire well test comprises a blowout prevention box main body, a pressure indicating device, a primary hydraulic sealing mechanism, a secondary hydraulic sealing mechanism and a hydraulic transmission mechanism, wherein the pressure indicating device, the primary hydraulic sealing mechanism and the secondary hydraulic sealing mechanism are all installed inside the blowout prevention box main body, and the hydraulic transmission mechanism is connected with the primary hydraulic sealing mechanism and the secondary hydraulic sealing mechanism; the upper end in the blowout prevention box main body is provided with a sliding chute, the middle part in the blowout prevention box main body is provided with a primary sealing cavity, the lower part in the blowout prevention box main body is provided with a secondary sealing cavity, and the tail end of the blowout prevention box main body is provided with a connector; the pressure indicating device comprises a pressure indicator and a spring, one end of the spring is fixedly connected to the blowout preventer main body, and the tail end of the pressure indicator is fixedly connected to the other end of the spring; the pressure indicator is provided with a limiting block, and the limiting block is embedded in a chute of the blowout prevention box main body; the primary hydraulic sealing mechanism comprises a primary sealing rubber core and four primary hydraulic cylinders, the primary hydraulic cylinders are fixedly arranged in the primary sealing cavities, and the primary sealing rubber core is fixedly connected with the telescopic ends of the primary hydraulic cylinders; the secondary hydraulic sealing mechanism comprises a secondary sealing rubber core and four secondary hydraulic cylinders, the secondary hydraulic cylinders are fixedly arranged in the secondary sealing cavities, and the secondary sealing rubber core is fixedly connected with the telescopic ends of the secondary hydraulic cylinders; the hydraulic transmission mechanism comprises a hydraulic pipe, six three-way valves, a four-way valve and a five-way valve, the hydraulic pipe is connected to four primary hydraulic cylinders and four secondary hydraulic cylinders, and the six three-way valves, the four-way valve and the five-way valve are arranged on the hydraulic pipe.
When the well testing work, pressure indicator can respond to the pressure that the spring receives in real time, when too high when about to take place to leak when the pressure in the well, opens the valve, and hydraulic oil passes through during hydraulic pressure pipe gets into the pneumatic cylinder, and the pneumatic cylinder extrusion is glued the core and is held tightly the steel wire, forms a airtight space, realizes preventing spouting and prevents that gas or liquid in the well from taking out the well head along with the steel wire.
The device is provided with secondary sealing, and the same hydraulic source is adopted, so that the sealing stability can be ensured, the condition that fluid is sprayed out when the sealing is unstable is effectively prevented, and the burst problems of single sealing instability and the like are solved; meanwhile, the sealing device adopts a mode of extruding the rubber core from outside to inside, the sealing effect is good, meanwhile, the rubber core can be compensated in time after being worn, the utilization rate of the rubber core reaches more than 85%, the consumable material is reduced, the service life is prolonged, the replacement frequency is reduced, and the operation efficiency is high.
Before each use of the device, the degree of wear of the various components must be carefully checked and the internal sealant core must be replaced. During the idle period, the cylinder body of the blowout prevention box is guaranteed to be filled with hydraulic oil, so that air is prevented from entering, and pressure is prevented from fluctuating greatly.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (7)
1. The high-pressure hydraulic blowout prevention box device for the steel wire well testing is characterized by comprising a blowout prevention box main body (1), a pressure indicating device, a first-stage hydraulic sealing mechanism (2), a second-stage hydraulic sealing mechanism (3) and a hydraulic transmission mechanism, wherein the pressure indicating device, the first-stage hydraulic sealing mechanism (2) and the second-stage hydraulic sealing mechanism (3) are all installed inside the blowout prevention box main body (1), and the hydraulic transmission mechanism is connected with the first-stage hydraulic sealing mechanism (2) and the second-stage hydraulic sealing mechanism (3).
2. The high-pressure hydraulic blowout prevention box device for the steel wire well testing according to claim 1, wherein a sliding groove (4) is formed in the upper end of the blowout prevention box body (1), a primary sealing cavity (5) is formed in the middle of the blowout prevention box body (1), a secondary sealing cavity (6) is formed in the lower portion of the blowout prevention box body (1), and a connector (7) is arranged at the tail end of the blowout prevention box body (1).
3. The high-pressure hydraulic blowout preventer box device for the wireline test well according to claim 1, wherein the pressure indicator device comprises a pressure indicator (8) and a spring (9), one end of the spring (9) is fixedly connected to the blowout preventer box body (1), and the tail end of the pressure indicator (8) is fixedly connected to the other end of the spring (9).
4. The high-pressure hydraulic blowout preventer box device for the steel wire well testing according to claim 3, wherein a limiting block (10) is arranged on the pressure indicator (8), and the limiting block (10) is embedded in a chute (4) of the blowout preventer box body (1).
5. The high-pressure hydraulic blowout prevention box device for the steel wire well testing according to claim 2, wherein the primary hydraulic sealing mechanism (2) comprises a primary sealing rubber core (11) and four primary hydraulic cylinders (12), the primary hydraulic cylinders (12) are fixedly arranged in the primary sealing cavity (5), and the primary sealing rubber core (11) is fixedly connected with the telescopic end of the primary hydraulic cylinder (12).
6. The high-pressure hydraulic blowout preventer device for the steel wire well testing according to claim 2, wherein the secondary hydraulic sealing mechanism (3) comprises a secondary sealing rubber core (13) and four secondary hydraulic cylinders (14), the secondary hydraulic cylinders (14) are fixedly arranged in the secondary sealing cavity (6), and the secondary sealing rubber core (13) is fixedly connected with telescopic ends of the secondary hydraulic cylinders (14).
7. The high-pressure hydraulic blowout preventer device for the steel wire well testing according to claim 1, wherein the hydraulic transmission mechanism comprises a hydraulic pipe (15), six three-way valves (16), a four-way valve (17) and a five-way valve (18), the hydraulic pipe (15) is connected to four primary hydraulic cylinders (12) and four secondary hydraulic cylinders (14), and the six three-way valves (16), the four-way valve (17) and the five-way valve (18) are mounted on the hydraulic pipe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921820675.5U CN210858639U (en) | 2019-10-28 | 2019-10-28 | High-pressure hydraulic blowout prevention box device for steel wire well testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921820675.5U CN210858639U (en) | 2019-10-28 | 2019-10-28 | High-pressure hydraulic blowout prevention box device for steel wire well testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210858639U true CN210858639U (en) | 2020-06-26 |
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ID=71290780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921820675.5U Active CN210858639U (en) | 2019-10-28 | 2019-10-28 | High-pressure hydraulic blowout prevention box device for steel wire well testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210858639U (en) |
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2019
- 2019-10-28 CN CN201921820675.5U patent/CN210858639U/en active Active
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