CN110630206A - Convenient to use's multi-functional pressure test stopper - Google Patents
Convenient to use's multi-functional pressure test stopper Download PDFInfo
- Publication number
- CN110630206A CN110630206A CN201910929052.XA CN201910929052A CN110630206A CN 110630206 A CN110630206 A CN 110630206A CN 201910929052 A CN201910929052 A CN 201910929052A CN 110630206 A CN110630206 A CN 110630206A
- Authority
- CN
- China
- Prior art keywords
- pressure test
- convenient
- pressure
- test plug
- stopper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 238000007789 sealing Methods 0.000 claims description 13
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention relates to an oil field operation tool for taking and delivering a four-way anti-wear sleeve of a sleeve and testing pressure of a blowout preventer in a drilling process, and discloses a multifunctional pressure testing plug convenient to use. According to the invention, the pin shaft is arranged on the outer circle of the pressure test plug body, so that the four-way anti-abrasion sleeve can be directly installed and taken out by matching the pin shaft with the four-way anti-abrasion sleeve without disassembling, turning and re-connecting, the operation steps are few, the use is convenient, the operation time is short, the labor intensity is low, and the risk of thread damage caused by screwing and unscrewing of connecting threads of a tool is avoided.
Description
Technical Field
The invention relates to an oil field operation tool, in particular to a pressure testing plug which is used for taking and delivering a four-way anti-wear sleeve of a sleeve and testing the pressure of a blowout preventer in the drilling process.
Background
The traditional multifunctional pressure test plug is used for isolating the space between a well drilling shaft and a ground well control device and detecting the tightness of the ground well control device, is seated on an inclined step in a casing head, and after the pressure test plug is stably seated and hung, a sealing ring of the excircle of the pressure test plug is excited to form sealing with the casing head body and serve as a plug for pressure test. Meanwhile, the pressure testing plug also has the function of taking and delivering the anti-abrasion sleeve and is used as a tool for taking the four-way anti-abrasion sleeve into and out. The working sequence of the pressure test plug is as follows: after the pressure test is completed, the four-way wear-resistant sleeve is required to be installed and taken out. The work to be done is: the multi-function pressure test plug is removed from the drill string, turned around, and reconnected to the drill string. The method has the advantages of more operation steps, inconvenient use, long operation time and high labor intensity.
Disclosure of Invention
The invention provides a multifunctional pressure testing plug which is convenient to use for solving the technical problems in the prior art, can realize the pressure testing and the taking and the delivering of an anti-wear sleeve of a blowout preventer, and does not need to be turned for reinstallation.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: the utility model provides a convenient to use's multi-functional pressure testing stopper, includes the pressure testing stopper body be equipped with the sealing washer on the excircle of pressure testing stopper body still be equipped with 3 at least round pins along circumference equipartition, along radial extension on the excircle of pressure testing stopper body, the round pin axle is located the below of sealing washer, the round pin axle adopts the countersunk screw who sets up rather than the coaxial to fix on the pressure testing stopper body.
The pressure test plug body is formed by forging 35CrMo alloy steel.
The sealing ring is made of hydrogenated nitrile-butadiene rubber.
And 3-6 pin shafts are arranged on the outer circle of the pressure test plug body.
The invention has the advantages and positive effects that: through adopting the structure that sets up the round pin axle on this excircle of pressure testing stopper, need not break out, turn round and reconnect, utilize round pin axle and cross abrasionproof cover cooperation just can the direct mount with take out cross abrasionproof cover, the operation step is few, convenient to use, the activity duration is short, low in labor strength.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a pressure test plug body; 2. a seal ring; 3. a support ring; 4. locking a ring; 5. countersunk head screws; 6. and (7) a pin shaft.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1, a multifunctional pressure test plug convenient to use comprises a pressure test plug body 1, wherein a sealing ring 2 is arranged on the excircle of the pressure test plug body 1, at least 3 pin shafts 6 which are uniformly distributed along the circumferential direction and extend along the radial direction are further arranged on the excircle of the pressure test plug body 1, the pin shafts 6 are positioned below the sealing ring 2, and the pin shafts 6 are fixed on the pressure test plug body 1 by countersunk head screws 5 which are coaxially arranged with the pin shafts 6. And the sealing ring 2 positioned in the middle of the pressure test plug body 1 is arranged below the step surface of the pressure test plug body and is supported by a support ring 3, and a locking ring 4 is arranged below the support ring 3.
The invention relates to a detachable pin shaft. The conventional multifunctional pressure test plug adopts a welding structure, a welding heat affected zone has hardness reduction risk, the wear resistance of a product can be reduced, and the service life of the product is influenced. The invention adopts a detachable assembly structure, each part and each component are independently processed and molded, and the parts and the components are matched by tolerance without influencing the overall performance of the product. And the maintenance is more convenient. When the product is used repeatedly, and partial parts or pin shafts are abraded to a certain extent, the product can be used only by replacing new pin shafts and reassembling. Not only saves the cost, but also shortens the production period, and has more obvious superiority particularly when in site construction.
In the embodiment, the pressure test plug body is forged by 35CrMo high-quality alloy steel, meets the 75K requirement in API SPEC 6A standard materials, has good comprehensive mechanical properties after final heat treatment, and has the mechanical properties of tensile strength of more than or equal to 655MPa, lower yield strength of more than or equal to 517MPa, elongation after fracture of more than or equal to 17 percent, reduction of area of more than or equal to 35 percent and V-notch impact energy of more than or equal to 20.3J. The material has good mechanical property, and the wear resistance and the toughness are further enhanced, so that the material is safe and reliable in operation and meets the requirement of repeated use of products. The seal ring is made of Hydrogenated Nitrile Butadiene Rubber (HNBR). The hydrogenated nitrile rubber has good oil resistance, and due to the highly saturated structure, the hydrogenated nitrile rubber has good heat resistance, excellent chemical corrosion resistance, excellent ozone resistance and higher compression set resistance, and accords with the marine salt spray environment. Meanwhile, the hydrogenated nitrile rubber has the characteristics of high strength, high tearing performance, excellent wear resistance and the like, and meets the characteristics of repeated use of special multifunctional pressure test plugs and delivering tools. Preferably, the number of the pins 6 is 3-6.
If the pressure test operation of the blowout preventer is required, the pin shaft is required to be detached, and the sealing is formed between the pressure test plug body and the four-way inner cavity of the sleeve through the extrusion of the sealing ring 2 so as to meet the pressure test requirement. If the anti-abrasion sleeve needs to be taken and sent, the pin shaft needs to be mounted, and the anti-abrasion sleeve is taken and sent through the pin shaft.
The traditional operation procedure of the pressure test plug is to test the pressure, take out the shackle, turn the direction of the tool, reconnect, send the four-way wear-resistant sleeve to a set position in the casing head, and take out the four-way wear-resistant sleeve after the operation is finished. The operation procedure of the invention is to test the pressure, then take out, connect the pin shaft, send the four-way wear-resistant sleeve to the set position in the casing head, and take out the four-way wear-resistant sleeve after the operation is finished. Compared with the traditional pressure test plug, the three operation steps of 'tripping, turning the direction of the tool and reconnecting' are reduced, the three operation steps can save about 2 hours, the number of operators and the labor intensity of the operators can be reduced, and the risk of thread damage caused by connecting the tool with the thread to make up and break out is avoided.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (4)
1. The utility model provides a convenient to use's multi-functional pressure testing stopper, includes the pressure testing stopper body be equipped with the sealing washer on the excircle of pressure testing stopper body, its characterized in that still be equipped with 3 at least along circumference equipartitions, along the round pin axle of radial extension on the excircle of pressure testing stopper body, the round pin axle is located the below of sealing washer, the round pin axle adopts and fixes rather than the countersunk screw of coaxial setting on the pressure testing stopper body.
2. The easy-to-use multi-functional trial stopper of claim 1, wherein the trial stopper body is forged from 35CrMo alloy steel.
3. The easy-to-use multi-functional pressure test plug according to claim 1, wherein the sealing ring is made of hydrogenated nitrile rubber.
4. The multifunctional pressure test plug convenient to use according to claim 1, wherein 3-6 pin shafts are arranged on the outer circle of the pressure test plug body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910929052.XA CN110630206A (en) | 2019-09-28 | 2019-09-28 | Convenient to use's multi-functional pressure test stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910929052.XA CN110630206A (en) | 2019-09-28 | 2019-09-28 | Convenient to use's multi-functional pressure test stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110630206A true CN110630206A (en) | 2019-12-31 |
Family
ID=68973502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910929052.XA Pending CN110630206A (en) | 2019-09-28 | 2019-09-28 | Convenient to use's multi-functional pressure test stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110630206A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758687A (en) * | 2020-05-19 | 2021-12-07 | 中国石油天然气股份有限公司 | Pump pipe pressure testing device and method of screw pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201083101Y (en) * | 2007-08-21 | 2008-07-09 | 上海神开石油化工装备股份有限公司 | Integrated dual-purpose tool |
| EP2239412A2 (en) * | 2009-03-31 | 2010-10-13 | Vetco Gray Inc. | Wellhead system having resilient device to actuate a load member and enable an over-pull test of the load member |
| CN201687428U (en) * | 2010-06-07 | 2010-12-29 | 中国石油化工股份有限公司 | Communication type pressure test plug |
| CN202176297U (en) * | 2011-06-16 | 2012-03-28 | 美钻石油钻采系统(上海)有限公司 | Multistage suspension composite type cross joint |
| CN203296738U (en) * | 2013-05-21 | 2013-11-20 | 宝鸡石油机械有限责任公司 | Wellhead pressure test plug |
| CN204851094U (en) * | 2015-07-07 | 2015-12-09 | 中国石油化工股份有限公司 | Integral abrasionproof bush |
| CN206329302U (en) * | 2016-12-28 | 2017-07-14 | 上海神开石油化工装备股份有限公司 | A kind of novel wellhead pressure test plug and abrasionproof bushing fetching tool |
| CN208502717U (en) * | 2018-06-29 | 2019-02-15 | 苏州博雷特流体控制有限公司 | A kind of reducing pressure test plug |
-
2019
- 2019-09-28 CN CN201910929052.XA patent/CN110630206A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201083101Y (en) * | 2007-08-21 | 2008-07-09 | 上海神开石油化工装备股份有限公司 | Integrated dual-purpose tool |
| EP2239412A2 (en) * | 2009-03-31 | 2010-10-13 | Vetco Gray Inc. | Wellhead system having resilient device to actuate a load member and enable an over-pull test of the load member |
| CN201687428U (en) * | 2010-06-07 | 2010-12-29 | 中国石油化工股份有限公司 | Communication type pressure test plug |
| CN202176297U (en) * | 2011-06-16 | 2012-03-28 | 美钻石油钻采系统(上海)有限公司 | Multistage suspension composite type cross joint |
| CN203296738U (en) * | 2013-05-21 | 2013-11-20 | 宝鸡石油机械有限责任公司 | Wellhead pressure test plug |
| CN204851094U (en) * | 2015-07-07 | 2015-12-09 | 中国石油化工股份有限公司 | Integral abrasionproof bush |
| CN206329302U (en) * | 2016-12-28 | 2017-07-14 | 上海神开石油化工装备股份有限公司 | A kind of novel wellhead pressure test plug and abrasionproof bushing fetching tool |
| CN208502717U (en) * | 2018-06-29 | 2019-02-15 | 苏州博雷特流体控制有限公司 | A kind of reducing pressure test plug |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758687A (en) * | 2020-05-19 | 2021-12-07 | 中国石油天然气股份有限公司 | Pump pipe pressure testing device and method of screw pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191231 |
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| WD01 | Invention patent application deemed withdrawn after publication |