CN201133230Y - Open type cable hydraulic blowout preventer - Google Patents
Open type cable hydraulic blowout preventer Download PDFInfo
- Publication number
- CN201133230Y CN201133230Y CNU2007201584848U CN200720158484U CN201133230Y CN 201133230 Y CN201133230 Y CN 201133230Y CN U2007201584848 U CNU2007201584848 U CN U2007201584848U CN 200720158484 U CN200720158484 U CN 200720158484U CN 201133230 Y CN201133230 Y CN 201133230Y
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- piston
- periphery
- open type
- choke tube
- hydraulic blowout
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Abstract
An open type cable hydraulic blowout preventing device is provided, which is characterized in that the open type cable hydraulic blowout preventing device is designed into a cylindrical shape, and is composed of bottom subs, a blowout preventing box, a piston cylinder, a packing set sealing bin, a choke sheath and an open type pipe plug which are connected through thread from the upper part to the lower part, plugs connected with the bottom subs through thread are arranged inside the cylindrical shape from the upper part to the lower part, a sealing packing set is pressed under the pipe plug, a poison and a poison sheath sleeved on the periphery of the poison are arranged at the upper-inner part the poison cylinder, and a piston push rod and a spring sleeved on the periphery of the poison are arranged at the lower-inner part of the poison cylinder; a sealing packing set is arranged inside the packing set sealing bin, and an open type choke with choke tube caps sleeved on the upper periphery and the lower periphery is arranged on the choke sheath; a overflow pipe connector is arranged on the middle section of a pack box in the transverse direction, a hydraulic connector is arranged on the piston cylinder inside the space reserved at the upper part of the lower ends of the piston sheath and the piston in the transverse direction, and a cable hole is arranged at the center line of the open type cable hydraulic blowout preventing device. The device solves the problem that gas liquid sputters from the periphery of the cable during the high pressure oil well testing.
Description
One, technical field
The utility model relates to the open cable hydraulic blowout hookup that a kind of hydraulic oil well dynamic test oil-water well dynamic parameter is used.
Two, background technology
The oil field is on stream in order to improve the ultimate recovery in oil field, all want regular flowing bottomhole pressure (FBHP) or quiet the test to oil-water well, carry out the injection-production ratio rational allocation, all be to measure with instrument on ground transmitting pressure signal to the shaft bottom by cable under the instrument when test with cable, also have some wells will exploit new layer position and carry out perforation, also to carry out perforation to perforating gun to new oil reservoir down by cable, in the process that removes tester and perforating gun, high pressure profit in the well is all along the outside splash of cable, contaminated environment, harm constructor's physical and mental health, scientific and technical personnel develop multiple preventer for this reason, but owing to structurally also have some problems.Mainly be only to consider the sealing blowout prevention, do not consider the pressure flow blowout prevention of successively decreasing, make sealed packing bad by high-pressure gas-liquid stream thorn, application life is short, and some gas-liquids are still spilt at well head.The Malong head can not propose after also existing test job in addition, can only cut off and could propose, as test other well and must do the Malong head again, wastes time and energy waste cable, the requirement of incompatibility test job.
Three, summary of the invention
The purpose of this utility model provides a kind of open cable hydraulic blowout hookup, solves the problem that above-mentioned prior art exists.
The technical solution of the utility model realizes in the following manner:
A kind of open cable hydraulic blowout hookup, it is characterized in that open cable hydraulic blowout hookup is made as cylindrical, form by the plug that is threaded, blowout prevention box, piston rod, packing_seal storehouse, choke tube sheath and open type plug from top to bottom, be provided with the plug that is threaded with plug from top to bottom in cylindrical interior, under plug, be pressed with sealed packing, the inner piston jacket that is provided with piston and is enclosed within the piston periphery on piston rod, the inner spring that is provided with piston push rod and is enclosed within the piston push rod periphery under piston rod; Be provided with sealed packing in the packing_seal storehouse, periphery is with the open type choke tube of choke tube silk cap about being provided with in the choke tube sheath; The packing box interlude transversely be provided with a bleed off pipe joint, the piston rod that leaves annular space on piston jacket lower end and top, piston lower end transversely is provided with a hydraulic joint, is provided with cable aperture on the center line of open cable hydraulic blowout hookup.
It is L shaped that piston is made as cylinder, and the bottom diameter is greater than the diameter more than the bottom, and internal diameter is identical from bottom to up, and bigger more than 1 times than cable size, is provided with sealing ring on the periphery of bottom, and the annular space between piston and the cable is made as the cushion chamber of gas-liquid flow.
Piston jacket is made as cylindrical, is provided with sealing ring in bottom periphery and interior week, cooperates with movable sealing between piston rod and the piston.
Piston push rod is made as cylindrical, form by two lobes of symmetry, between connect by screw, bottom, piston push rod upper end is provided with an annular boss, the external diameter of annular boss is slightly less than the piston rod internal diameter, periphery is provided with sealing ring in the bottom.
The packing_seal storehouse is made as cylindrical, top is provided with the male thread that is threaded with piston rod, be provided with external diameter undergauge section on male thread top, the bottom is provided with the internal diameter extension diameter section, on extension diameter section, be provided with the box thread that is threaded with the choke tube sheath, the middle part is identical with the top internal diameter, cooperates with the periphery movable sealing of piston push rod.
The open type choke tube is made as cylindrical, is made up of two lobes of symmetry, and is combined integrated by the choke tube silk cap that the upper and lower end parts periphery is set, and the external diameter of open type choke tube is identical with choke tube silk cap external diameter, between be threaded.
The open type plug is made as cylindrical, is made up of two lobes of symmetry, and combined integrated by screw, top is provided with the male thread that is threaded with the choke tube sheath, and the bottom is provided with an external diameter undergauge head, and the undergauge head is provided with the spanner rib.
Compared with the prior art the utility model has the following advantages:
1, the mode that adopts choked flow step-down sealing, hydraulic packing, buffering overflow to seal the comprehensive regulation has again solved the hydraulic oil water well test from the splash problem of gas-liquid of cable periphery, avoided environment pollution, having prevented the body and mind infringement to the constructor, is a kind of desirable hydraulic oil water well test wellhead blowout preventor.
2, because piston push rod, open type choke tube and open type plug all can separately be dismantled, be a kind of combined type preventer, can connect the instrument of Ф 38mm, Ф 25mm, do not need to do the Malong head and just can carry out the test of various projects with combined type Malong head.
3, when not needing this device, combiner can be taken apart, take out the Malong head, can carry out the inferior test of other project or other well.
Four, description of drawings
Accompanying drawing is a structural representation of the present utility model.
1-plug 2-plug 3-packing box 4-sealed packing 5-overflow adapter 6-piston jacket 7-hydraulic joint 8-piston 9-spring 10-piston push rod 11-packing_seal storehouse 12-sealed packing 13-piston rod 14-open type choke tube 15-choke tube sheath 16-choke tube silk cap 17-open type plug among the figure
Five, the specific embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
A kind of open cable hydraulic blowout hookup, it is characterized in that open cable hydraulic blowout hookup is made as cylindrical, form by the plug 1 that is threaded, blowout prevention box 3, piston rod 13, packing_seal storehouse 11, choke tube sheath 15 and open type plug 17 from top to bottom, be provided with the plug 1 that is threaded with plug 2 from top to bottom in cylindrical interior, under plug, be pressed with sealed packing 12, the inner piston jacket 6 that is provided with piston 8 and is enclosed within the piston periphery on piston rod, the inner spring 9 that is provided with piston push rod 10 and is enclosed within the piston push rod periphery under piston rod; Be provided with sealed packing 4 in packing_seal storehouse 11, periphery is with the open type choke tube 14 of choke tube silk cap 16 about being provided with in choke tube sheath 15; The packing box interlude transversely be provided with a bleed off pipe joint 5, the piston rod 13 that leaves annular space on piston jacket 6 lower ends and top, piston 8 lower end transversely is provided with a hydraulic joint 7, is provided with cable aperture on the center line of open cable hydraulic blowout hookup.
Cable is in the process of going into the well, pressure in the well reduces flow by choke tube pressure and reduces, after through the sealing of sealed packing, pressure reduces flow again and reduces again, the small amount of liquid that flows out, through the choked flow of the sealed packing on the plug, flow out from overflow adapter, liquid will can not spray from plug, if overflow is excessive, can be connected the manual pump pressurization on ground by the hydraulic packing joint with the hydraulic oil pipeline, the pressure of manual pump will be delivered on the piston, and descent of piston promotes piston push rod, the crush seal packing, sealed packing is held the sealed packing hermetically-sealed cable tightly under the effect of power, overflow will reduce.Before the manual pump pressurization, at first tighten the pistol of manual pump front end, manual pump just can add upward pressure, turns on the handwheel pressure of manual pump front end and will lay down.If when not needing sealed packing pressurizeed, turn on the pistol of manual pump front end, pressure is laid down, and at this moment the pressure on the piston reduces, and under the effect of spring, piston push rod and piston rise, and sealed packing restores.
Claims (7)
1, a kind of open cable hydraulic blowout hookup, it is characterized in that open cable hydraulic blowout hookup is made as cylindrical, form by the plug that is threaded, blowout prevention box, piston rod, packing_seal storehouse, choke tube sheath and open type plug from top to bottom, be provided with the plug that is threaded with plug from top to bottom in cylindrical interior, under plug, be pressed with sealed packing, the inner piston jacket that is provided with piston and is enclosed within the piston periphery on piston rod, the inner spring that is provided with piston push rod and is enclosed within the piston push rod periphery under piston rod; Be provided with sealed packing in the packing_seal storehouse, periphery is with the open type choke tube of choke tube silk cap about being provided with in the choke tube sheath; The packing box interlude transversely be provided with a bleed off pipe joint, the piston rod that leaves annular space on piston jacket lower end and top, piston lower end transversely is provided with a hydraulic joint, is provided with cable aperture on the center line of open cable hydraulic blowout hookup.
2, open cable hydraulic blowout hookup according to claim 1, it is L shaped to it is characterized in that piston is made as cylinder, the bottom diameter is greater than the diameter more than the bottom, internal diameter is identical from bottom to up, and it is bigger more than 1 times than cable size, be provided with sealing ring on the periphery of bottom, the annular space between piston and the cable is made as the cushion chamber of gas-liquid flow.
3, open cable hydraulic blowout hookup according to claim 1, it is cylindrical to it is characterized in that piston jacket is made as, and is provided with sealing ring in bottom periphery and interior week, cooperates with movable sealing between piston rod and the piston.
4, open cable hydraulic blowout hookup according to claim 1, it is cylindrical to it is characterized in that piston push rod is made as, two lobes by symmetry are formed, between connect by screw, bottom, piston push rod upper end is provided with an annular boss, the external diameter of annular boss is slightly less than the piston rod internal diameter, and periphery is provided with sealing ring in the bottom.
5, open cable hydraulic blowout hookup according to claim 1, it is cylindrical to it is characterized in that the packing_seal storehouse is made as, top is provided with the male thread that is threaded with piston rod, be provided with external diameter undergauge section on male thread top, the bottom is provided with the internal diameter extension diameter section, be provided with the box thread that is threaded with the choke tube sheath on extension diameter section, the middle part is identical with the top internal diameter, cooperates with the periphery movable sealing of piston push rod.
6, open cable hydraulic blowout hookup according to claim 1, it is cylindrical to it is characterized in that the open type choke tube is made as, two lobes by symmetry are formed, combined integrated by the choke tube silk cap that the upper and lower end parts periphery is set, the external diameter of open type choke tube is identical with choke tube silk cap external diameter, between be threaded.
7, open cable hydraulic blowout hookup according to claim 1, it is cylindrical to it is characterized in that the open type plug is made as, two lobes by symmetry are formed, combined integrated by screw, top is provided with the male thread that is threaded with the choke tube sheath, the bottom is provided with an external diameter undergauge head, and the undergauge head is provided with the spanner rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201584848U CN201133230Y (en) | 2007-12-16 | 2007-12-16 | Open type cable hydraulic blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201584848U CN201133230Y (en) | 2007-12-16 | 2007-12-16 | Open type cable hydraulic blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201133230Y true CN201133230Y (en) | 2008-10-15 |
Family
ID=40061503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201584848U Expired - Fee Related CN201133230Y (en) | 2007-12-16 | 2007-12-16 | Open type cable hydraulic blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201133230Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912510A (en) * | 2015-04-27 | 2015-09-16 | 大庆宏测技术服务有限公司 | Overflow reinjection blowout prevention system of injection well |
| CN109695445A (en) * | 2017-10-24 | 2019-04-30 | 中国石油化工股份有限公司 | Cable seal passes through well-flushing tool |
-
2007
- 2007-12-16 CN CNU2007201584848U patent/CN201133230Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912510A (en) * | 2015-04-27 | 2015-09-16 | 大庆宏测技术服务有限公司 | Overflow reinjection blowout prevention system of injection well |
| CN104912510B (en) * | 2015-04-27 | 2017-11-07 | 大庆宏测技术服务有限公司 | Injection well overflow re-injection spraying-preventing system |
| CN109695445A (en) * | 2017-10-24 | 2019-04-30 | 中国石油化工股份有限公司 | Cable seal passes through well-flushing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |