CN109403907A - A kind of deep water is drilled well integrated well control safety control new method up and down - Google Patents
A kind of deep water is drilled well integrated well control safety control new method up and down Download PDFInfo
- Publication number
- CN109403907A CN109403907A CN201811215515.8A CN201811215515A CN109403907A CN 109403907 A CN109403907 A CN 109403907A CN 201811215515 A CN201811215515 A CN 201811215515A CN 109403907 A CN109403907 A CN 109403907A
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- Prior art keywords
- out preventer
- blow
- signal
- well
- temperature
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000005553 drilling Methods 0.000 claims abstract description 37
- 230000002265 prevention Effects 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 9
- 241001074085 Scophthalmus aquosus Species 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035939 shock Effects 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
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
- E21B33/064—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers specially adapted for underwater well heads
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/001—Survey of boreholes or wells for underwater installation
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Geophysics (AREA)
- Remote Sensing (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of deep water to be drilled well integrated well control safety control new method up and down, comprising the following steps: S1, installation is with brill temperature, pressure sensor at the position close to drill bit, the temperature and pressure that drill bit nearby goes out when detecting drilling well；S2, downhole blow-out preventer is installed in pit shaft at the well section of lower part, allows downhole blow-out preventer that high pressure kicks are controlled the lower part well section in pit shaft in first time；S3, temperature, the signal of pressure sensor, the signal of downhole blow-out preventer are connected with the signal of subsea blow out preventer with wireless transmission method, by wireless signal transmission to drilling platforms, judges whether to need to close subsea blow out preventer by the staff on platform；S4, drilling platforms carry out drillng operation, after drill bit is drilled into high pressure gas, sensor detects high-voltage signal, downhole blow-out preventer is closed, offshore drilling platform is transmitted a signal to simultaneously, the staff of platform with according to the signal arrived, judge whether to need to close subsea blow out preventer, realize second level blowout prevention.
Description
Technical field
It is that a kind of deep water is drilled well or more the present invention relates to marine drilling technology and petroleum, natural gas extraction technical field
Integrated well control safety controls new method.
Background technique
Blowout is that the pressure of formation fluid in drilling process (petroleum, natural gas and water etc.) is greater than borehole pressure and largely gushes
The phenomenon that entering pit shaft, and uncontrolledly being sprayed from well head.And gas blowout accident huge pressure and shock wave institute when being then by erupting
Caused by casualties and property loss.Gas blowout accident is a kind of extremely harmful drilling failure, once occur often generating tight
Weight consequence, it is necessary to take strict precautionary measures.When there is well kick, the total well of quickly and accurately Guan is had to, well head is controlled, prevents
Gas blowout accident occurs.
Existing drilling at the sea well control technique is all deep water single-stage well control.Such well control is the installation at the well head in seabed
Subsea blow out preventer, by pit shaft to overflow, reach subsea blow out preventer makes through its packing in pit shaft high pressure kicks body, reaches
The mesh of blowout prevention.This conventional blowout prevention method has certain limitation, once single-stage preventer cisco unity malfunction, overflow
Body directly will go out to flow out from the well head in seabed, cause serious marine environmental pollution.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides a kind of safe and reliable, easy to operate, measurement data
Accurately, simply a kind of deep water of operation is drilled well integrated well control safety control new method up and down, the brill in applicable marine oil gas field
Visit exploitation.
The purpose of the present invention realized by following technical method, and a kind of deep water is drilled well integrated well control safety control up and down
New method, comprising the following steps:
S1, temperature, pressure sensor are connected to apart from bit location nearby, move, makes it possible to boring
The temperature and pressure condition of drill bit position are detected in first time.
S2, installation downhole blow-out preventer: downhole blow-out preventer is the preventer of the lower well section in pit shaft, which is mounted on
On drilling rod, and certain gap is maintained in pit shaft.When drilling well work is normally carried out, between the drilling fluid of pit shaft passes through
Gap is backed up by downhole blow-out preventer.It is that downhole blow-out preventer is closed when detecting hyperbaric environment, it will be in drilling rod in underground
Outer fluid insulates simultaneously, by high pressure kicks body control lower part well section in pit shaft.
S3, installation signal controller: temperature, pressure sensor, downhole blow-out preventer, subsea blow out preventer all signals adopt
It is transmitted with wireless signal, temperature, pressure sensor directly control downhole blow-out preventer, while signal is passed to drilling well and is put down
The staff of platform, platform controls subsea blow out preventer according to judging signal.
S4, the work of second level preventer: drilling platforms carries out drillng operation, and temperature, pressure sensor are moved with brill.When
After drill bit is drilled into high pressure gas or liquid, temperature, pressure sensor detect high-voltage signal, interior by Underwell anti-injection at the first time
Device is closed, and by high pressure kicks body control lower part well section in pit shaft, while sending signal to drilling platforms, staff is according to letter
Number judgement, closes subsea blow out preventer if dangerous, realizes second level blowout prevention.
The temperature, pressure sensor are moved with boring.
The downhole blow-out preventer is mounted on pit shaft drilling rod, is located in pit shaft lower well section, certain with maintaining in pit shaft
Gap.
The temperature, pressure sensor, downhole blow-out preventer, subsea blow out preventer all signals be all made of wireless signal into
Row transmission.
The blowout prevention new method is second level blowout prevention, is closed downhole blow-out preventer when temperature, pressure detection are to high pressure, together
When send a signal to drilling platforms, subsea blow out preventer is closed by staff, change level-one blowout prevention is second level blowout prevention.
The invention has the following advantages that
1, the temperature in the present invention, pressure sensor allow to detect drill bit institute within first time with installation is bored
Temperature and pressure at position.
2, the downhole blow-out preventer in the present invention is mounted on pit shaft drilling rod, is located in pit shaft lower well section, is detected in system
It can be closed within first time after high pressure kicks body, high pressure kicks body is insulated into the lower well section in pit shaft, ensure that submarine well
The safety that mouth goes out.
3, the present invention in temperature, pressure sensor, downhole blow-out preventer, subsea blow out preventer all signals be all made of wirelessly
Signal is transmitted, and the transmission of signal is facilitated.
4, the present invention be in downhole blow-out preventer and subsea blow out preventer, two preventer blowout preventions together, securely and reliably, become one
Grade blowout prevention be second level blowout prevention, significantly reduce well control risk, change world's deep water be drilled well field well control can only rely on it is single
The status of subsea blowout preventer.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is the downhole blow-out preventer operation schematic diagram in the present invention；
Fig. 3 is that upper and lower preventer simultaneously closes off schematic diagram；
1- drilling platforms in figure, 2- marine riser, 3- drilling rod, 4- subsea blow out preventer, 5- pit shaft, 6- downhole blow-out preventer, 7- temperature
Degree, pressure sensor, 8- drill bit.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, but protection scope of the present invention is not limited to following institute
It states.
A kind of deep water is drilled well integrated well control safety control new method up and down, comprising the following steps:
S1, temperature, pressure sensor are connected to apart from bit location nearby, move, makes it possible to boring
The temperature and pressure condition of drill bit position are detected in first time.
S2, installation downhole blow-out preventer: downhole blow-out preventer is the preventer of the lower well section in pit shaft, which is mounted on
On drilling rod, and certain gap is maintained in pit shaft.When drilling well work is normally carried out, between the drilling fluid of pit shaft passes through
Gap is backed up by downhole blow-out preventer.It is that downhole blow-out preventer is closed when detecting hyperbaric environment, it will be in drilling rod in underground
Outer fluid insulates simultaneously, by high pressure kicks body control lower part well section in pit shaft.
S3, installation signal controller: temperature, pressure sensor, downhole blow-out preventer, subsea blow out preventer all signals adopt
It is transmitted with wireless signal, temperature, pressure sensor directly control downhole blow-out preventer, while signal is passed to drilling well and is put down
The staff of platform, platform controls subsea blow out preventer according to judging signal.
S4, the work of second level preventer: drilling platforms carries out drillng operation, and temperature, pressure sensor are moved with brill.When
After drill bit is drilled into high pressure gas or liquid, temperature, pressure sensor detect high-voltage signal, interior by Underwell anti-injection at the first time
Device is closed, and by high pressure kicks body control lower part well section in pit shaft, while sending signal to drilling platforms, staff is according to letter
Number judgement, closes subsea blow out preventer if dangerous, realizes second level blowout prevention.
Claims (5)
1. a kind of deep water is drilled well integrated well control safety control new method up and down, which comprises the following steps:
S1, temperature, pressure sensor are connected to apart from bit location nearby, move, is made it possible to first with boring
The temperature and pressure condition of drill bit position are detected in time；
S2, installation downhole blow-out preventer: downhole blow-out preventer is the preventer of the lower well section in pit shaft, which is mounted on drilling rod
On, and certain gap is maintained in pit shaft, when drilling well work is normally carried out, the drilling fluid of pit shaft passes through gap, warp
It crosses downhole blow-out preventer to back up, is when detecting hyperbaric environment, downhole blow-out preventer is closed, in underground by the interior outer fluid of drilling rod
It insulates simultaneously, by high pressure kicks body control lower part well section in pit shaft；
S3, installation signal controller: temperature, pressure sensor, downhole blow-out preventer, subsea blow out preventer all signals be all made of nothing
Line signal is transmitted, and temperature, pressure sensor directly control downhole blow-out preventer, while signal is passed to drilling platforms, is put down
The staff of platform controls subsea blow out preventer according to judging signal；
S4, the work of second level preventer: drilling platforms carries out drillng operation, and temperature, pressure sensor are moved with brill, works as drill bit
After being drilled into high pressure gas or liquid, temperature, pressure sensor detect high-voltage signal, interior at the first time to close downhole blow-out preventer
It closes, by high pressure kicks body control lower part well section in pit shaft, while sending signal to drilling platforms, staff sentences according to signal
It is disconnected, subsea blow out preventer is closed if dangerous, realizes second level blowout prevention.
2. requiring a kind of deep water to be drilled well integrated well control safety control new method up and down according to right 1, it is characterised in that: institute
The temperature stated, pressure sensor are moved with boring, and can detecte the temperature and pressure near drill bit.
3. requiring a kind of deep water to be drilled well integrated well control safety control new method up and down according to right 1, it is characterised in that: institute
The downhole blow-out preventer stated is mounted on pit shaft drilling rod, is located at lower well section in pit shaft, and certain gap is maintained in pit shaft, is being closed
Outer fluid in drilling rod can be insulated rapidly when closing.
4. requiring a kind of deep water to be drilled well integrated well control safety control new method up and down according to right 1, it is characterised in that: institute
The temperature stated, pressure sensor, downhole blow-out preventer, subsea blow out preventer all signals be all made of wireless signal and transmitted.
5. requiring a kind of deep water to be drilled well integrated well control safety control new method up and down according to right 1, it is characterised in that: institute
The blowout prevention new method stated is second level blowout prevention, is closed downhole blow-out preventer when temperature, pressure detection are to high pressure, while sending signal
To drilling platforms, subsea blow out preventer is closed by staff, change level-one blowout prevention is second level blowout prevention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811215515.8A CN109403907A (en) | 2018-10-18 | 2018-10-18 | A kind of deep water is drilled well integrated well control safety control new method up and down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811215515.8A CN109403907A (en) | 2018-10-18 | 2018-10-18 | A kind of deep water is drilled well integrated well control safety control new method up and down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109403907A true CN109403907A (en) | 2019-03-01 |
Family
ID=65467582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811215515.8A Withdrawn CN109403907A (en) | 2018-10-18 | 2018-10-18 | A kind of deep water is drilled well integrated well control safety control new method up and down |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109403907A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901144A (en) * | 2021-03-11 | 2021-06-04 | 西南石油大学 | Special structure well shaft overflow dynamic characteristic analysis method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226377A (en) * | 2011-05-26 | 2011-10-26 | 西南石油大学 | Drill string equipped with downhole blowout preventer and working method thereof |
| CN103196686A (en) * | 2013-03-19 | 2013-07-10 | 西南石油大学 | Down-hole annular blowout preventer experiment bench |
| CN104246114A (en) * | 2012-04-11 | 2014-12-24 | 控制压力营运私人有限公司 | Method of handling a gas influx in a riser |
| CN104487648A (en) * | 2012-05-03 | 2015-04-01 | 控制压力营运私人有限公司 | Method of drilling a subterranean borehole |
| US20150136422A1 (en) * | 2013-11-18 | 2015-05-21 | Rodgers Technology, Llc | Apparatus and method for deploying equipment into a wellbore |
-
2018
- 2018-10-18 CN CN201811215515.8A patent/CN109403907A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226377A (en) * | 2011-05-26 | 2011-10-26 | 西南石油大学 | Drill string equipped with downhole blowout preventer and working method thereof |
| CN104246114A (en) * | 2012-04-11 | 2014-12-24 | 控制压力营运私人有限公司 | Method of handling a gas influx in a riser |
| CN104487648A (en) * | 2012-05-03 | 2015-04-01 | 控制压力营运私人有限公司 | Method of drilling a subterranean borehole |
| CN103196686A (en) * | 2013-03-19 | 2013-07-10 | 西南石油大学 | Down-hole annular blowout preventer experiment bench |
| US20150136422A1 (en) * | 2013-11-18 | 2015-05-21 | Rodgers Technology, Llc | Apparatus and method for deploying equipment into a wellbore |
Non-Patent Citations (1)
| Title |
|---|
| 黎伟: "井下防喷系统机理研究与设计", 《中国博士学位论文全文数据库 工程科技 1辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901144A (en) * | 2021-03-11 | 2021-06-04 | 西南石油大学 | Special structure well shaft overflow dynamic characteristic analysis method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190301 |
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| WW01 | Invention patent application withdrawn after publication |