CN106168129A - An a kind of step closing well method based on well control system - Google Patents
An a kind of step closing well method based on well control system Download PDFInfo
- Publication number
- CN106168129A CN106168129A CN201610773435.9A CN201610773435A CN106168129A CN 106168129 A CN106168129 A CN 106168129A CN 201610773435 A CN201610773435 A CN 201610773435A CN 106168129 A CN106168129 A CN 106168129A
- Authority
- CN
- China
- Prior art keywords
- well
- drilling
- preventer
- control system
- closing well
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004575 stone 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- 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
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
- E21B34/04—Valve arrangements for boreholes or wells in well heads in underwater 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)
- Earth Drilling (AREA)
Abstract
The present invention relates to an a kind of step closing well method based on well control system, it comprises the following steps: 1) be provided with PLC in well control system, and PLC controls drilling pump, preventer, the duty of surge open flow valve and electromagnetic valve；2) in drilling process, running into emergency when needing closing well, well control system sends stopping drilling well order and well kick signal；3) drilling tool is promoted to predeterminated position；4) well control system start-up one step closing well: (4.1) PLC simultaneously to drilling pump, preventer, surge open flow valve and electromagnetic valve transmitting control commands, and sends information to drilling implementer；(4.2) drilling pump, preventer, surge open flow valve and electromagnetic valve carries out associative operation according to control command respectively；(4.3) after drilling implementer records closing well 10～15min standpipe and casing pressure and the increment of circulatory pool drilling fluid and time, complete closing well.Closing well speed of the present invention is fast, reliability is high, be difficult to maloperation occur.
Description
Technical field
The present invention relates to a kind of closing well method, especially with regard to one at the fixed rig of offshore oil and land rig etc.
The step closing well method based on well control system used in field.
Background technology
At present, domestic marine fixed platform or the petroleum drilling operation on land, when having overflow or blowout occurs, need
Well control system is used to carry out closing well.Existing closing well process needs well control system to coordinate manual operation to complete closing well, such as, such as Fig. 1
Shown in, closing well step is as follows: 1) runs into emergency during drilling well and needs closing well；2) stop bore and send well kick signal；3) by drilling tool
It is promoted to close the correct position of preventer；4) stop top driving and drilling pump；5) the open flow valve that surges at drilling spool is opened；6)
Upper flashboard preventer is turned off after closing annular preventer；7) resistance valve that surges on choke tube is closed；8) report drilling well is responsible for
People；9) after record closing well 10～15min standpipe and casing pressure and the increment of circulatory pool drilling fluid and time, complete to close
Well.Wherein, crucial from step 3) to step 6) be required for drilling operator and be operated manually on corresponding control panel,
Next operation just can be carried out after completing an operation, the longest, and maloperation easily occurs, and closing well one is important former
Then: closing well is resolute in time, and overflow, well kick once occur, and closing well is the rapidest, and spillway discharge is the fewest, is more easily controlled.This
Manually-operated closing well mode speed is slow, and reliability is the highest.Well control system is relative with the control system of other drilling equipment only
Stand, and the limitation of well control system makes closing well program rely on manual operation, the longest.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide an a kind of step closing well method based on well control system, its closing well
Speed is fast, reliability is high, be difficult to maloperation occur.
For achieving the above object, the present invention takes techniques below scheme: an a kind of step closing well method based on well control system,
It is characterized in that it comprises the following steps: 1) it is provided with PLC in well control system, PLC controls drilling pump, blowout prevention
Device, the duty of surge open flow valve and electromagnetic valve；2), in drilling process, emergency is run into when needing closing well, well control system
Send stopping drilling well order and well kick signal；3) drilling tool is promoted to cut out for convenience the predeterminated position of preventer；4)
Well control system start-up one step closing well, completes closing well.
Preferably, described step 4) in, the detailed process of a step closing well is as follows: (4.1) PLC is simultaneously to drilling well
Pump, preventer, surge open flow valve and electromagnetic valve transmitting control commands, and sends information to drilling implementer；(4.2) drilling pump according to
The control command received stops top and drives and drilling pump, and the open flow valve that surges opens the liquid at drilling spool according to the control command received
Dynamic open flow valve, preventer turns off upper flashboard preventer, electromagnetic valve after first cutting out annular preventer according to the control command received
The resistance valve that surges on choke manifold is closed according to the control command received；(4.3) after drilling implementer records closing well 10～15min
Standpipe and casing pressure and the increment of circulatory pool drilling fluid and time.
Preferably, described step 1) in, described preventer is made up of annular preventer and upper flashboard preventer；Described annular
Preventer and described upper flashboard preventer all electrically connect with described PLC.
Preferably, described step 1) in, described in resistance valve one end of surging connect with slush pump one end through described electromagnetic valve, institute
State the resistance valve other end that surges to connect with the slush pump other end.
Due to the fact that and take above technical scheme, the well control system that it has the advantage that 1, the present invention uses is permissible
Pre-setting hard closing or soft closing pattern, when closing well, after closing preventer, well control system controls relevant device work shape
State, realizes stopping relevant drilling equipment operating successively, and this process is made without manual operation, and reliability is high, and closing well is timely
And speed is fast, is difficult to maloperation occur.2, the present invention uses a set of electromagnetic valve in parallel in the control system of resistance valve to control
Operating mechanism, and electrically connect with well control system, to realize being automatically brought into operation, also lay the first stone for automatization's kill-job operation.
Accompanying drawing explanation
Fig. 1 is closing well schematic flow sheet in prior art；
Fig. 2 is a step closing well schematic flow sheet in the present invention.
Detailed description of the invention
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
As in figure 2 it is shown, the present invention provides an a kind of step closing well method based on well control system, it comprises the following steps:
1) being provided with PLC in well control system, resistance valve one end of surging connects with slush pump one end through electromagnetic valve, liquid
The dynamic resistance valve other end connects with the slush pump other end, electromagnetic valve control the duty of the resistance valve that surges；PLC control
Drilling pump processed, preventer, the duty of surge open flow valve and electromagnetic valve；
2) in drilling process, running into emergency when needing closing well, well control system sends stopping drilling well order and well kick
Signal；
3) drilling tool is promoted to cut out for convenience the predeterminated position of preventer；
4) well control system start-up one step closing well, detailed process is as follows:
(4.1) PLC simultaneously to drilling pump, preventer, surge open flow valve and electromagnetic valve transmitting control commands, and to
Drilling implementer sends information；
(4.2) drilling pump drives and drilling pump according to the control command stopping top receiving, and the open flow valve that surges is according to the control received
The open flow valve that surges at drilling spool is opened in system order, and preventer first cuts out after annular preventer again according to the control command received
Closing upper flashboard preventer, electromagnetic valve cuts out the resistance valve that surges on choke manifold according to the control command received；
(4.3) after drilling implementer records closing well 10～15min standpipe and casing pressure and the increasing of circulatory pool drilling fluid
Amount and time, complete closing well.
Above-mentioned steps 1) in, preventer is made up of annular preventer and upper flashboard preventer.Annular preventer and upper flashboard
Preventer all electrically connects with PLC, PLC control annular preventer and the duty of upper flashboard preventer.
The various embodiments described above are merely to illustrate the present invention, the structure of each parts, size, arrange position and shape is all permissible
Be varied from, on the basis of technical solution of the present invention, all improvement individual part carried out according to the principle of the invention and etc.
With conversion, the most should not get rid of outside protection scope of the present invention.
Claims (4)
1. a step closing well method based on well control system, it is characterised in that: it comprises the following steps:
1) being provided with PLC in well control system, PLC controls drilling pump, preventer, surge open flow valve and electromagnetic valve
Duty；
2) in drilling process, running into emergency when needing closing well, well control system sends stopping drilling well order and well kick signal；
3) drilling tool is promoted to cut out for convenience the predeterminated position of preventer；
4) well control system start-up one step closing well, completes closing well.
A kind of step closing well method based on well control system, it is characterised in that: described step 4)
In, the detailed process of a step closing well is as follows:
(4.1) PLC simultaneously to drilling pump, preventer, surge open flow valve and electromagnetic valve transmitting control commands, and to drilling well
Personnel send information；
(4.2) drilling pump drives and drilling pump according to the control command stopping top receiving, and the open flow valve that surges is according to the control life received
The open flow valve that surges at drilling spool is opened in order, and preventer turns off after first cutting out annular preventer according to the control command received
Upper flashboard preventer, electromagnetic valve cuts out the resistance valve that surges on choke manifold according to the control command received；
(4.3) after drilling implementer records closing well 10～15min standpipe and casing pressure and the increment of circulatory pool drilling fluid and
Time.
A kind of step closing well method based on well control system, it is characterised in that: described step 1)
In, described preventer is made up of annular preventer and upper flashboard preventer；Described annular preventer and described upper flashboard preventer
All electrically connect with described PLC.
A kind of step closing well method based on well control system, it is characterised in that: described step 1)
In, described in resistance valve one end of surging connect with slush pump one end through described electromagnetic valve, described in surge the resistance valve other end and mud
The pump other end connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773435.9A CN106168129A (en) | 2016-08-30 | 2016-08-30 | An a kind of step closing well method based on well control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773435.9A CN106168129A (en) | 2016-08-30 | 2016-08-30 | An a kind of step closing well method based on well control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106168129A true CN106168129A (en) | 2016-11-30 |
Family
ID=57377042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610773435.9A Pending CN106168129A (en) | 2016-08-30 | 2016-08-30 | An a kind of step closing well method based on well control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106168129A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915595A (en) * | 2018-08-02 | 2018-11-30 | 中国海洋石油集团有限公司 | Deepwater drilling well control management method |
| CN111535771A (en) * | 2020-05-11 | 2020-08-14 | 中石化石油工程技术服务有限公司 | Blowout preventer emergency shutdown control system |
| CN114464035A (en) * | 2021-12-24 | 2022-05-10 | 中国海洋石油集团有限公司 | Interactive shallow water shut-in well control scene drilling system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201696021U (en) * | 2010-07-02 | 2011-01-05 | 中国石油集团川庆钻探工程有限公司 | Intelligent centralized monitoring well control system |
| CN102758619A (en) * | 2011-04-26 | 2012-10-31 | 海德里尔美国制造业有限责任公司 | Automated well control method and apparatus |
| US8528660B2 (en) * | 2010-03-05 | 2013-09-10 | Safekick Americas Llc | System and method for safe well control operations |
| WO2014070823A3 (en) * | 2012-11-02 | 2014-11-06 | Saudi Arabian Oil Company | Systems and methods for an expert system for well control using bayesian intelligence |
| CN204457727U (en) * | 2014-12-16 | 2015-07-08 | 中国石油天然气股份有限公司 | Wireless remote well control system |
-
2016
- 2016-08-30 CN CN201610773435.9A patent/CN106168129A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8528660B2 (en) * | 2010-03-05 | 2013-09-10 | Safekick Americas Llc | System and method for safe well control operations |
| CN201696021U (en) * | 2010-07-02 | 2011-01-05 | 中国石油集团川庆钻探工程有限公司 | Intelligent centralized monitoring well control system |
| CN102758619A (en) * | 2011-04-26 | 2012-10-31 | 海德里尔美国制造业有限责任公司 | Automated well control method and apparatus |
| WO2014070823A3 (en) * | 2012-11-02 | 2014-11-06 | Saudi Arabian Oil Company | Systems and methods for an expert system for well control using bayesian intelligence |
| CN204457727U (en) * | 2014-12-16 | 2015-07-08 | 中国石油天然气股份有限公司 | Wireless remote well control system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915595A (en) * | 2018-08-02 | 2018-11-30 | 中国海洋石油集团有限公司 | Deepwater drilling well control management method |
| CN111535771A (en) * | 2020-05-11 | 2020-08-14 | 中石化石油工程技术服务有限公司 | Blowout preventer emergency shutdown control system |
| CN111535771B (en) * | 2020-05-11 | 2022-04-26 | 中石化石油工程技术服务有限公司 | Blowout preventer emergency shutdown control system |
| CN114464035A (en) * | 2021-12-24 | 2022-05-10 | 中国海洋石油集团有限公司 | Interactive shallow water shut-in well control scene drilling system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: CNOOC research institute limited liability company Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant before: China National Offshore Oil Corporation Applicant before: CNOOC Research Institute |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161130 |
|
| RJ01 | Rejection of invention patent application after publication |