CN203847100U - Remote pressure display system for cable blowout preventing device - Google Patents
Remote pressure display system for cable blowout preventing device Download PDFInfo
- Publication number
- CN203847100U CN203847100U CN201420290923.0U CN201420290923U CN203847100U CN 203847100 U CN203847100 U CN 203847100U CN 201420290923 U CN201420290923 U CN 201420290923U CN 203847100 U CN203847100 U CN 203847100U
- Authority
- CN
- China
- Prior art keywords
- pressure
- stop valve
- display system
- snap joint
- blow
- 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.)
- Expired - Lifetime
Links
- 239000004519 grease Substances 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 abstract description 11
- 238000011161 development Methods 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model provides a remote pressure display system for a cable blowout preventing device, and belongs to the field of wellhead sealing and blowout preventing of oil and gas exploration and development. The remote pressure display system comprises a pressure-transmitting four-way joint, a first stop valve, a second stop valve, a pressure sensor and a shock-proof pressure gage. The shock-proof pressure gage is connected with the upper port of the pressure-transmitting four-way joint. One end of the pressure sensor is connected with the lower port of the pressure-transmitting four-way joint, and the other end of the pressure sensor is connected with a wellhead pressure digital display gage of a hydraulic control grease injecting system. The left port and the right port of the pressure-transmitting four-way joint are respectively connected with a pressure release pipe. The other end of the pressure release pipe connected with the left port is connected with a fast connector female end, and the other end of the fast connector female end is connected with the first stop valve. The other end of the pressure release pipe connected with the right port is connected with the second stop valve.
Description
Technical field
The utility model belongs to wellhead sealing blowout prevention field in petroleum natural gas exploration, be specifically related to a kind of cable anti-blow-out device remote pressure display system, the long-range demonstration of well head pressure of the wellhead cable blowout hookup using for petroleum gas borehole logging tool, perforating job.
Background technology
The fast development of unconventional natural gas is changing world energy sources general layout, and becomes global focus, and current global natural gas annual production has broken through 3 tcms, and wherein unconventional gas production exceedes 3500 billion cubic meters.Unconventional natural gas general reference geological conditions and mining conditions are different from conventional gas, can not obtain the natural gas resource of economic flow rate by the routine means of exploiting, and mainly comprise tight gas, coal bed gas, shale gas etc.Facts have proved in a large number both at home and abroad, staged fracturing of horizontal well transformation is the key that shale gas and tight gas obtain production capacity, is main reforming technology means wherein and realize segmentation shutoff by bridging plug and perforation combined tech after employing cased hole completion for pressure break provides condition.
Bridging plug and perforation combined tech are to make pipe string to assigned address by hydraulic pushing composite bridge plug and perforation connection, are then set bridging plug and are given up by bridging plug setting tool, and then utilizing multi-stage perforator device to realize segmenting perforating.Bridging plug and perforation join the Operating Pressure of doing in process need to use wellhead cable blowout hookup.In the process that removes cable, the hydraulic control grease filling system that needs ground is realized the sealing in cable movement process to noting stop-leak compound in sealing control head, the pressure of greasing will could be realized sealing reliably higher than well head pressure 5MPa～10MPa, ensures that the high-pressure oil gas in well does not leak.In construction in the past, normally at well head setting pressure table, then by after staff's reading numerical values, offer the operating personnel of hydraulic control grease filling system, adjust greasing pressure with this, ensure the sealing of spraying-preventing system.But in the construction of high-pressure oil-gas well, especially in the operation of pumping bridging plug-sub-clustering perforation connection, more than the pumping pressure that well head is the highest can reach 90MPa, in well head high-pressure area, read pressure value, staff's personal safety has been formed to great threat, in underground work safety standard, also forbid well head personnel at all levels under high pressure operating mode close, otherwise violate underground work safety in production ban; On the other hand, pumping bridging plug-sub-clustering perforation connection in former derrick operation is done in operation field, pressure meter is arranged on two-layer platform conventionally, need the frequent upper and lower offshore boring island of constructor, waste time and energy, brought certain difficulty to site operation, particularly potential safety hazard is large, and the person accident that drops easily occurs.
Also there is similar situation in Operating Pressure processes such as conventional wireline logging, perforation, pressure measurement.
Utility model patent " CN200940465Y cable anti-blow-out device " discloses a kind of cable blowout control device, is suitable for well workover for oil field, logging operation, has realized well head and can under state of a control, carry out wireline test operation in airtight.This preventer is made up of cable sealing device, lubricating grease pressurization compensation arrangement, flashboard sealing device, cable clipping apparatus, cable clamping device, be divided into two body designs, the hanger of perforating gun is through after upper shell, hanger is hung up to perforating gun, after perforating gun is by lower house, with coarse pitch nut, upper-lower casing is connected, have lightweight, volume is little, easy to operate, practical, seal the advantages such as reliable, but cannot remote monitoring cable sealing device internal pressure, for greasing operation is made troubles.
Utility model content
The purpose of this utility model is to solve the difficult problem existing in above-mentioned prior art, a kind of cable anti-blow-out device remote pressure display system is provided, make the operating personnel of hydraulic control grease filling system monitor in real time well head pressure, regulate greasing pressure with this, ensure the positiver sealing of well head.On the other hand, avoid operating personnel frequently to enter high-pressure area, reduce labour intensity, for site operation offers convenience.
The utility model is achieved through the following technical solutions:
A kind of cable anti-blow-out device remote pressure display system, comprises pressure transmission four-way 5, the first stop valve 7, the second stop valve, pressure sensor and shock-proof pressure gauge;
Described shock-proof pressure gauge is connected with the upper interface of pressure transmission four-way;
One end of described pressure sensor is connected with the lower interface of pressure transmission four-way, and the other end is connected with the digital display list of well head pressure of hydraulic control grease filling system;
Left interface and right interface at described pressure transmission four-way are connected to respectively a relief tube;
The other end at the relief tube being connected with left interface is connected with snap joint female end, and the other end of described snap joint female end 2 is connected with described the first stop valve;
Connect described the second stop valve at the other end of the relief tube being connected with right interface; The other end of described the second stop valve is connected with snap joint male end.
The other end at described the first stop valve is connected with crossover sub, and it is connected with the lower catcher of blowout preventer system;
Described relief tube is connected with snap joint female end by snap joint female end sheath;
Described the second stop valve is connected with snap joint male end by snap joint male end sheath;
Compared with prior art, the beneficial effects of the utility model are:
(1) pressure sensor is directly connected on hydraulic control grease filling system by data wire, directly show well head pressure by digital display list, the operating personnel of hydraulic control grease filling system are by the well head pressure value of digital display list, control in real time the pressure of greasing, meet the needs of wellhead sealing, easy to operate.
(2) well head pressure is read in the high-pressure area that does not need constructor frequently to enter into well head, has ensured constructor's personal safety, reduces labour intensity, for site operation offers convenience.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is hydraulic control grease filling system schematic diagram.
Fig. 3 is the digital display list of well head pressure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model is made up of parts such as crossover sub 1, snap joint female end 2, relief tube 3, pressure sensor 4, pressure transmission four-way 5, snap joint male end 6, the first stop valve 7, snap joint female end sheath 8, shock-proof pressure gauge 9, the second stop valve 10, snap joint male end sheaths 11.Wherein crossover sub 1 is connected with the lower catcher of blowout preventer system, plays connection function; The first stop valve 7 is connected with pressure transmission four-way 5 by snap joint female end 2, well head internal pressure can be derived; On pressure transmission four-way 5, connect shock-proof pressure gauge 9 and pressure sensor 4, pressure sensor 4 is connected with the digital display list 12 of well head pressure (as shown in Figure 3) of hydraulic control grease filling system (as shown in Figure 2) by data line, long-range demonstration well head pressure; The second stop valve 10 plays a part borehole pressure to discharge.
The technical solution of the utility model is achieved in that crossover sub 1 is connected with the lower catcher of blowout preventer system, connect again after the first stop valve 7, be connected with pressure transmission four-way 5, pressure sensor 4 and shock-proof pressure gauge 9 are connected on pressure transmission four-way 5, and the second stop valve 10 is connected with pressure transmission four-way 5.In this structure, shock-proof pressure gauge 9 directly shows well head pressure; The first stop valve 7 and the second stop valve 10 can be used for laying down the overbottom pressure in lubricator after closing well; Pressure sensor 4 is connected on hydraulic control grease filling system, for long-range demonstration well head pressure; Snap joint male end can be carried to lubricator and closing after head valve on instrument, inserts suitable relief line and realize pressure release and the open flow of lubricator.
Said structure can be realized the long-range demonstration of the well head pressure of the wellhead cable blowout hookup using at petroleum gas borehole logging tool, perforating job, for the control of the greasing pressure of wellhead blowout preventer provides foundation, has met the requirement of construction safety simultaneously.
Pressure sensor 4 is connected by data line with the digital display list 12 of well head pressure, operating personnel can observe the pressure of well head in hydraulic grease injection system, realizing long-range well head pressure data reads, for the control of the greasing pressure of wellhead blowout preventer provides foundation, met the requirement of construction safety simultaneously.
Well head pressure is read in the high-pressure area that the utility model does not need constructor frequently to enter into well head, has ensured constructor's personal safety, reduces labour intensity, for site operation offers convenience
Technique scheme is a kind of embodiment of the present utility model, for those skilled in the art, on the basis that the utility model discloses principle, be easy to make various types of improvement or distortion, and be not limited only to the described structure of the above-mentioned specific embodiment of the utility model, therefore previously described just preferred, and do not there is restrictive meaning.
Claims (4)
1. a cable anti-blow-out device remote pressure display system, is characterized in that:
Described cable anti-blow-out device comprises pressure transmission four-way, the first stop valve, the second stop valve, pressure sensor and shock-proof pressure gauge by remote pressure display system;
Described shock-proof pressure gauge is connected with the upper interface of pressure transmission four-way;
One end of described pressure sensor is connected with the lower interface of pressure transmission four-way, and the other end is connected with the digital display list of well head pressure of hydraulic control grease filling system;
Left interface and right interface at described pressure transmission four-way are connected to respectively a relief tube;
The other end at the relief tube being connected with left interface is connected with snap joint female end, and the other end of described snap joint female end is connected with described the first stop valve;
Connect described the second stop valve at the other end of the relief tube being connected with right interface;
The other end of described the second stop valve is connected with snap joint male end.
2. cable anti-blow-out device according to claim 1 remote pressure display system, is characterized in that:
The other end at the first stop valve is connected with crossover sub, and it is connected with the lower catcher of blowout preventer system.
3. cable anti-blow-out device according to claim 1 remote pressure display system, is characterized in that:
Be connected with snap joint female end by snap joint female end sheath at described relief tube.
4. cable anti-blow-out device according to claim 1 remote pressure display system, is characterized in that:
Be connected with snap joint male end by snap joint male end sheath at described the second stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290923.0U CN203847100U (en) | 2014-06-03 | 2014-06-03 | Remote pressure display system for cable blowout preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290923.0U CN203847100U (en) | 2014-06-03 | 2014-06-03 | Remote pressure display system for cable blowout preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847100U true CN203847100U (en) | 2014-09-24 |
Family
ID=51560134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420290923.0U Expired - Lifetime CN203847100U (en) | 2014-06-03 | 2014-06-03 | Remote pressure display system for cable blowout preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700810A (en) * | 2019-09-16 | 2020-01-17 | 中海艾普油气测试（天津）有限公司 | Drilling platform safety system for testing and monitoring method thereof |
| CN111441732A (en) * | 2020-04-30 | 2020-07-24 | 中国石油天然气集团有限公司 | Method for quickly replacing tool string and wellhead by combining with-pressure bridge plug perforation |
-
2014
- 2014-06-03 CN CN201420290923.0U patent/CN203847100U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700810A (en) * | 2019-09-16 | 2020-01-17 | 中海艾普油气测试（天津）有限公司 | Drilling platform safety system for testing and monitoring method thereof |
| CN110700810B (en) * | 2019-09-16 | 2022-03-11 | 中海艾普油气测试（天津）有限公司 | Drilling platform safety system for testing and monitoring method thereof |
| CN111441732A (en) * | 2020-04-30 | 2020-07-24 | 中国石油天然气集团有限公司 | Method for quickly replacing tool string and wellhead by combining with-pressure bridge plug perforation |
| CN111441732B (en) * | 2020-04-30 | 2021-08-03 | 中国石油天然气集团有限公司 | Method for quickly replacing tool string and wellhead by combining with-pressure bridge plug perforation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Implementation of underground longhole directional drilling technology for greenhouse gas mitigation in Chinese coal mines | |
| CN102587981B (en) | Underground salt cavern gas storage and building method thereof | |
| CN104141470A (en) | Pore-forming and sealing method for hydraulic fracturing borehole casing section in underground coal mine | |
| CN103195468A (en) | System process for conducting efficient strengthened extraction in surrounding rock | |
| CN103233768B (en) | Horizontal-drilling staged-fracturing pressure relief method for underground coal bed | |
| CN201546710U (en) | Segmented water exploration test pipe column for casing completion horizontal well | |
| CN103089306A (en) | Method for constructing underground gas storage by depleted oil-gas reservoir | |
| CN202596684U (en) | Multi-stage segmented yield-seeking and water-finding testing process pipe column for casing well completion horizontal well | |
| CN203847080U (en) | Downhole tool string for pumping perforation operation of horizontal well | |
| CN102852490A (en) | High gas suction and discharge process method for complex well | |
| CN107620581B (en) | Construction method of one-well dual-purpose coal mine shaft inspection hole | |
| CN102296950B (en) | Hydraulic shearing type sampling drilling tool | |
| CN206220877U (en) | Underground cable wet joint suitable for cabled digital separate injection | |
| CN109098750B (en) | Device for underground gas extraction hole to be used as coal seam water injection hole and construction method | |
| CN103912257B (en) | A kind of dragging multiple fracturing device with pressure | |
| CN202900175U (en) | Pressure measuring well completion pipe string for suspension pressure gauge of gas storage | |
| CN207436950U (en) | Coiled tubing crosses cable hydraulic releasing tool | |
| CN203847100U (en) | Remote pressure display system for cable blowout preventing device | |
| CN204827256U (en) | Seal up and adopt down screen pipe and fill sand control integration operating tool string | |
| CN104533344A (en) | Hydraulic sliding sleeve switch tool | |
| CN104234682A (en) | Coiled tubing separate-layer fracturing method suitable for multiple thin coal seams | |
| CN207004498U (en) | Infinite stages switching sliding sleeve fracturing tool | |
| CN203499618U (en) | Gas drive oil production annular test decentralized wellhead device | |
| CN106401537A (en) | Well completion pipe string of underground gas storage well and well completion method | |
| CN208564457U (en) | A kind of horizontal well multistage fracturing tubing string |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |