CN107152251A - Emergency treatment method for hydrogen sulfide in under-balanced drilling fluid ground circulation system - Google Patents
Emergency treatment method for hydrogen sulfide in under-balanced drilling fluid ground circulation system Download PDFInfo
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- CN107152251A CN107152251A CN201710567444.7A CN201710567444A CN107152251A CN 107152251 A CN107152251 A CN 107152251A CN 201710567444 A CN201710567444 A CN 201710567444A CN 107152251 A CN107152251 A CN 107152251A
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- drilling fluid
- hydrogen sulfide
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- controlling system
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- 238000005553 drilling Methods 0.000 title claims abstract description 113
- 239000012530 fluid Substances 0.000 title claims abstract description 96
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000007787 solid Substances 0.000 claims abstract description 41
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 27
- 239000011593 sulfur Substances 0.000 claims abstract description 27
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 230000008030 elimination Effects 0.000 claims description 24
- 238000003379 elimination reaction Methods 0.000 claims description 24
- 238000003672 processing method Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 16
- 230000006837 decompression Effects 0.000 claims description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 238000004073 vulcanization Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims description 4
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 230000023556 desulfurization Effects 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 7
- 231100000331 toxic Toxicity 0.000 abstract description 5
- 230000002588 toxic effect Effects 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000003814 drug Substances 0.000 description 6
- 238000010992 reflux Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013024 troubleshooting Methods 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/067—Separating gases from drilling fluids
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/068—Arrangements for treating drilling fluids outside the borehole using chemical treatment
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an emergency treatment method for hydrogen sulfide in an underbalanced drilling fluid ground circulation system, and relates to the technical field of oil drilling and well drilling processes. The invention carries out real-time monitoring on hydrogen sulfide in the drilling fluid returned in the well, controls the drilling fluid treatment control process when the ground separation system can not completely separate toxic and harmful gases by adding three emergency safety measures of a sulfur removal agent, bypass backflow and circulating reinjection, and can also carry out treatment by adopting the combination of various methods, thereby avoiding the harm to personnel and environment caused by the volatilization of the toxic and harmful gases such as hydrogen sulfide and the like to the atmosphere in the solid control system to the maximum extent.
Description
Technical field
The present invention relates to oil drilling drilling technology field, it is mainly used in being air more specifically to one kind
The emergency processing method of hydrogen sulfide in the drilling fluid ground circulatory system in the closed under balance pressure drilling circulatory system of isolation.
Background technology
The conventional under balance pressure drilling technique drilling fluid ground circulatory system mainly include choke manifold, multiphase separator,
The processing unit such as solid controlling system and circulating tank.Liquid-gas separator in the circulatory system mainly for separating of with drilling fluid from pit shaft
The formation gas inside returned out, in sulfur-bearing formation, includes the gases such as natural gas and hydrogen sulfide.If in the ground circulatory system
In, multiphase separator can not be totally separated from processing formation gas, will cause to be expelled in the drilling fluid of solid controlling system have vulcanization
Operating personnel are damaged by the possibility of hydrogen effusion.If the non-complete hydrogen sulfide gas of separating treatment is excessive, also can be right
Equipment and downhole tool in the circulatory system cause corrosion-damaged.Therefore, such as under-balance drilling operation need to be carried out in sulfur-bearing formation
When, it is necessary to a kind of process is provided to the stink damp in the circulatory system of conventional under balance pressure drilling technique drilling fluid ground
Body carries out preventing the emergency processing of effusion.
State Intellectual Property Office disclosed a Publication No. CN101525993A in September in 2009 9 days, entitled " to contain
The patent of invention of the monitoring of hydrogen sulfide and control method in sulphur formation underbalanced drilling ", the patent of invention is drilling fluid through overstocked
Testing hydrogen sulfide content in drilling fluid is monitored when closing sampler, and the hydrogen sulfide content signal monitored is inputted to control system
System, the amount of sulfur elimination needed for control system is converted into simultaneously sends instruction, and sulfur elimination is to four-phase separator and makes in drilling fluid for injection
Hydrogen sulfide and sulfur elimination react to remove residual hydrogen sulfide.
It is above-mentioned excessively to add sulfur elimination into drilling fluid in the prior art in the processing method of hydrogen sulfide, can be to boring
The performance of well liquid material affects, therefore can produce certain limitation to the addition of sulfur elimination, and limits and remove
After the addition of sulphur agent, the elimination effect and efficiency of hydrogen sulfide will be influenceed.
The content of the invention
In order to overcome defect present in above-mentioned prior art and deficiency, the invention provides a kind of Under-balanced drilling fluid
The emergency processing method of hydrogen sulfide in the circulatory system of face, goal of the invention of the invention is intended to solve sulfur elimination in the prior art and added
When entering amount and receiving limitation, to the further processing of hydrogen sulfide, the hydrogen sulfide not being kept completely separate is removed, it is to avoid hydrogen sulfide gas cut drilling well
Liquid evaporates into the injury to personnel, equipment and environment in atmospheric environment at solid controlling system, prevents the generation of contingency, meets
The demand of safety and environmental protection drilling well.
In order to solve above-mentioned problems of the prior art, the present invention is achieved through the following technical solutions：
The emergency processing method of hydrogen sulfide in the circulatory system of Under-balanced drilling fluid ground, will be returned out containing vulcanization out of well first
The drilling fluid of hydrogen enters multiphase separator after decompression and carries out liquid qi leel from the drilling fluid after separation is drained into solid controlling system；
Before drilling fluid enters solid controlling system or when entering solid controlling system, testing hydrogen sulfide content in drilling fluid is monitored, when monitoring
When hydrogen sulfide content is above standard and can not continue to drain into solid controlling system, injection sulfur elimination makes drilling well into multiphase separator
Hydrogen sulfide in liquid reacts with sulfur elimination；It is characterized in that：Using any one in following two kinds of processing methods or two kinds
Combination drilling fluid is handled；
A, open multiphase separator tapping line top set pipe passage, will not separate clean drilling fluid again re-injection to multiphase
Separator inlet carries out multi-cycle separation again；
B, multiphase separator is handled after do not separate clean drilling fluid directly around solid controlling system, be injected into well and followed
Ring processing.
It is described not separate clean drilling fluid, specifically refer to, when sulfur elimination addition is restricted, through multiphase separator
After middle sulfur elimination is reacted with hydrogen sulfide in drilling fluid, it is impossible to be fully apparent from clean hydrogen sulfide, also exist containing partial vulcanization hydrogen
In drilling fluid.
The drilling fluid containing hydrogen sulfide enters multiphase separator after decompression, specifically refers to：Contain hydrogen sulfide
Drilling fluid carries out decompression processing by choke manifold, and the choke manifold is entered by way of one or more levels series connection to drilling fluid
Row decompression.
The drilling fluid containing hydrogen sulfide enters multiphase separator after decompression and carries out liquid qi leel from the gas after separation
Body is handled by desulfurization with burning.
It is described that hydrogen sulfide in drilling fluid is monitored, specifically refer to, using H2S detector to the sulphur in drilling fluid
Change hydrogen to be monitored.
The H2S detector is arranged on solid controlling system.
The solid controlling system at least includes vibratory sieve, desander and centrifuge.
The multiphase separator is four-phase separator.
Compared with prior art, the beneficial technique effect that the present invention is brought is shown：
1st, unique advantage of the invention is using medicament injection, bypassing reflux stream and circulation three kinds of emergent safety measures of re-injection
Method handles control technique come drilling fluid when controlling the surface separation system to be not completely separated toxic and harmful gas, also may be used
Handled with the combination using the methods at different levels mentioned in the present invention, the toxic and harmful gas such as hydrogen sulfide are avoided to greatest extent
Air is evaporated into solid controlling system to personnel and environmental pollution.
2nd, compared with prior art, because an excess amount of addition of medicament causes the performance to drilling fluid materialses certain shadow
Ring, therefore the application is when medicament addition receives limitation, can take the knot of bypassing reflux stream, circulation re-injection or two ways
The mode of conjunction, is further handled the drilling fluid for remaining hydrogen sulfide, the mode of bypassing reflux stream, by untreated clean drilling fluid
Circular treatment is carried out, the reaction time of sulfur elimination and hydrogen sulfide in the case where medicament addition is restricted, can be extended, prevented
The sulfur elimination only retained is impacted to the performance of drilling fluid materialses.
3rd, it is that the gas flow returned out on stratum is excessive, all separation equipments can not be complete by the way of circulation re-injection
Full processing, and in the case of circulation can not being stopped, after directly multiphase separator is handled not separate clean drilling fluid direct
Solid controlling system is bypassed, is injected into well and carries out circular treatment, bypass solid controlling system, prevent the leakage of hydrogen sulfide in drilling fluid, most
Limits avoid the toxic and harmful gas such as hydrogen sulfide from evaporating into air in solid controlling system to personnel and environmental pollution.
Brief description of the drawings
Fig. 1 is the process flow diagram of the inventive method；
Fig. 2 is the method flow schematic diagram of the different process demand of the present invention.
Embodiment
Embodiment 1
As a preferred embodiment of the present invention, with reference to Figure of description 1, present embodiment discloses：
The emergency processing method of hydrogen sulfide in the circulatory system of Under-balanced drilling fluid ground, will be returned out containing vulcanization out of well first
The drilling fluid of hydrogen enters multiphase separator after decompression and carries out liquid qi leel from the drilling fluid after separation is drained into solid controlling system；
Before drilling fluid enters solid controlling system or when entering solid controlling system, testing hydrogen sulfide content in drilling fluid is monitored, when monitoring
When hydrogen sulfide content is above standard and can not continue to drain into solid controlling system, injection sulfur elimination makes drilling well into multiphase separator
Hydrogen sulfide in liquid reacts with sulfur elimination；Drilling fluid is handled using following processing methods；Open multiphase separator discharge opeing
Pipeline top set pipe passage, separating clean drilling fluid, re-injection to multiphase separator inlet is circulated again again
Separation.
Embodiment 2
As another preferred embodiment of the present invention, with reference to Figure of description 1, present embodiment discloses：
The emergency processing method of hydrogen sulfide in the circulatory system of Under-balanced drilling fluid ground, will be returned out containing vulcanization out of well first
The drilling fluid of hydrogen enters multiphase separator after decompression and carries out liquid qi leel from the drilling fluid after separation is drained into solid controlling system；
Before drilling fluid enters solid controlling system or when entering solid controlling system, testing hydrogen sulfide content in drilling fluid is monitored, when monitoring
When hydrogen sulfide content is above standard and can not continue to drain into solid controlling system, injection sulfur elimination makes drilling well into multiphase separator
Hydrogen sulfide in liquid reacts with sulfur elimination；Drilling fluid is handled using following processing methods；After multiphase separator is handled
Do not separate clean drilling fluid directly around solid controlling system, be injected into well and carry out circular treatment.
Embodiment 3
As another preferred embodiment of the present invention, with reference to Figure of description 1, present embodiment discloses：
The emergency processing method of hydrogen sulfide in the circulatory system of Under-balanced drilling fluid ground, will be returned out containing vulcanization out of well first
The drilling fluid of hydrogen enters four-phase separator after decompression and carries out liquid qi leel from the drilling fluid after separation is drained into solid controlling system；
Before drilling fluid enters solid controlling system or when entering solid controlling system, testing hydrogen sulfide content in drilling fluid is monitored, when monitoring
When hydrogen sulfide content is above standard and can not continue to drain into solid controlling system, injection sulfur elimination makes drilling well into four-phase separator
Hydrogen sulfide in liquid reacts with sulfur elimination；Drilling fluid is handled using following processing methods；Using following two kinds of processing sides
The combination of method is handled drilling fluid；Four-phase separator tapping line top set pipe passage is opened, it is clean by not separating
Re-injection to four-phase separator inlet carries out multi-cycle separation again to drilling fluid again；Not separating after four-phase separator is handled is dry
Net drilling fluid is injected into well directly around solid controlling system and carries out circular treatment.
Embodiment 4
Embodiments of the invention are provided below in conjunction with the accompanying drawings：Sulfur-bearing formation fluid is returned out to ground well head 1 with drilling fluid from pit shaft
Afterwards, it is depressured by choke manifold 2 and multiphase separator 4 carries out liquid qi leel from the gas after separation is by desulfurization 6 and burning 7
Processing, the drilling fluid after separation can rely on the pressure of separator 4 to be immediately discharged to solid controlling system 10 by opening valve 17, work as separation
, can be by opening valve 18 during insufficient pressure in device 4, and open positive displacement pump 19 to discharge drilling fluid.Pacify on solid controlling system 10
Equipped with H2S detector 25, the testing hydrogen sulfide content in drilling fluid for draining into solid controlling system 10 can be monitored in real time.On multiphase separator 4
H2S detector 26 is installed, the content of hydrogen sulfide in drilling fluid in multiphase separator can be monitored in real time；When the vulcanization of monitoring
When hydrogen content is above standard and can not drain into solid controlling system 10, it can be handled by emergency trouble shooting measures.It is to beat automatically first
Chemicals dosing plant 9 and its valve 14 are opened, is entered by pump 13 to being automatically injected the related agents such as sulfur elimination at the inlet of multiphase separator 4
Row removes and is provided with ball-and-seat 15 on sulphuring treatment, filling line, it is to avoid drilling fluid enters chemicals dosing plant 9.It should be noted that due to
Performance on drilling fluid materialses is caused certain influence by an excess amount of addition of medicament.Now, if medicament addition is restricted,
The tapping line top set pipe passage of multiphase separator 4 is automatically opened up first, that is, is opened valve 20, will not be separated clean drilling well
Re-injection to multiphase separator enters inlet and carries out being also equipped with ball-and-seat 16 on multi-cycle separation again, the re-injection pipeline liquid again,
Prevent that drilling fluid is directly entered tapping line on pressure duct.If the gas flow that stratum is returned out is excessive, all separation equipments are equal
It can not completely handle, circulation can not be stopped again, then close valve 22 and valve 23, valve 21,24 be opened, by multiphase separator
The still drilling fluid containing gas after 4 processing is injected directly around solid controlling system 10 and ground circulating tank 11 by slush pump 12
Circular treatment is carried out in well, the hydrogen sulfide emergency handling process side in the circulatory system of Under-balanced drilling fluid ground is so far completed
Method.
In the present invention, all valves, instrument, pump and equipment etc. can use centralized Control or other known ways
It is controlled.Present invention omits the handling process for returning out such as landwaste, oil phase material of other in drilling fluid, but its hydrogen sulfide
Emergency processing flow is all contained in protection scope of the present invention.If carrying out drilling well on the stratum of elevated pressures, the present invention can be with
The method of two grades or multiple-stage separator separation is adopted as, its emergency processing method is similar with the method for single-stage separator, two fractions
It is as shown in Figure 2 from the emergent separation method schematic flow sheet of device.It can also be entered using the combination for the methods at different levels mentioned in the present invention
Row processing, above method is all contained within protection scope of the present invention.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the present invention, all basic principles in the present invention it
Interior, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. the emergency processing method of hydrogen sulfide in the circulatory system of Under-balanced drilling fluid ground, contains sulphur by what is returned out out of well first
The drilling fluid for changing hydrogen enters multiphase separator progress liquid qi leel from the drilling fluid after separation drains into solid controlling system after decompression
In；Before drilling fluid enters solid controlling system or when entering solid controlling system, testing hydrogen sulfide content in drilling fluid is monitored, works as monitoring
Hydrogen sulfide content when being above standard and can not continue to drain into solid controlling system, injection sulfur elimination makes brill into multiphase separator
Hydrogen sulfide in well liquid reacts with sulfur elimination；It is characterized in that：Using any one in following two kinds of processing methods or two
The combination planted is handled drilling fluid；
A, open multiphase separator tapping line top set pipe passage, will not separate clean drilling fluid again re-injection to multiphase
Separator inlet carries out multi-cycle separation again；
B, multiphase separator is handled after do not separate clean drilling fluid directly around solid controlling system, be injected into well and followed
Ring processing.
2. the emergency processing method of hydrogen sulfide, its feature in the circulatory system of Under-balanced drilling fluid ground as claimed in claim 1
It is：It is described not separate clean drilling fluid, specifically refer to, when sulfur elimination addition is restricted, through in multiphase separator
After sulfur elimination is reacted with hydrogen sulfide in drilling fluid, it is impossible to be fully apparent from clean hydrogen sulfide, also bored containing partial vulcanization hydrogen
In well liquid.
3. the emergency processing method of hydrogen sulfide, its feature in the circulatory system of Under-balanced drilling fluid ground as claimed in claim 1
It is：The drilling fluid containing hydrogen sulfide enters multiphase separator after decompression, specifically refers to：Drilling well containing hydrogen sulfide
Liquid carries out decompression processing by choke manifold, and the choke manifold is dropped by way of one or more levels series connection to drilling fluid
Pressure.
4. the emergency processing method of hydrogen sulfide in the Under-balanced drilling fluid ground circulatory system as described in claim 1 or 3, it is special
Levy and be：The drilling fluid containing hydrogen sulfide enters multiphase separator after decompression and carries out liquid qi leel from the gas after separation
Body is handled by desulfurization with burning.
5. the emergency processing method of hydrogen sulfide, its feature in the circulatory system of Under-balanced drilling fluid ground as claimed in claim 1
It is：It is described that hydrogen sulfide in drilling fluid is monitored, specifically refer to, using H2S detector to the hydrogen sulfide in drilling fluid
It is monitored.
6. the emergency processing method of hydrogen sulfide, its feature in the circulatory system of Under-balanced drilling fluid ground as claimed in claim 5
It is：The H2S detector is arranged on solid controlling system.
7. the emergency processing side of hydrogen sulfide in the Under-balanced drilling fluid ground circulatory system as described in claim 1,2,3,5 or 6
Method, it is characterised in that：The solid controlling system at least includes vibratory sieve, desander and centrifuge.
8. the emergency processing side of hydrogen sulfide in the Under-balanced drilling fluid ground circulatory system as described in claim 1,2,3,5 or 6
Method, it is characterised in that：The multiphase separator is four-phase separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710567444.7A CN107152251A (en) | 2017-07-12 | 2017-07-12 | Emergency treatment method for hydrogen sulfide in under-balanced drilling fluid ground circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710567444.7A CN107152251A (en) | 2017-07-12 | 2017-07-12 | Emergency treatment method for hydrogen sulfide in under-balanced drilling fluid ground circulation system |
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| CN107152251A true CN107152251A (en) | 2017-09-12 |
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| CN201710567444.7A Pending CN107152251A (en) | 2017-07-12 | 2017-07-12 | Emergency treatment method for hydrogen sulfide in under-balanced drilling fluid ground circulation system |
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| CN108005600A (en) * | 2017-12-25 | 2018-05-08 | 中国石油集团川庆钻探工程有限公司 | Vacuum type closed vibrating screen |
| CN108104745A (en) * | 2017-12-25 | 2018-06-01 | 中国石油集团川庆钻探工程有限公司 | Safe and environment-friendly closed circulation drilling ground operation method |
| CN108194041A (en) * | 2017-12-25 | 2018-06-22 | 中国石油集团川庆钻探工程有限公司 | Method for removing hydrogen sulfide gas in well drilling |
| CN108222869A (en) * | 2017-12-25 | 2018-06-29 | 中国石油集团川庆钻探工程有限公司 | Safe and environment-friendly closed under-balanced drilling ground operation method |
| WO2019079666A1 (en) * | 2017-10-19 | 2019-04-25 | Saudi Arabian Oil Company | Systems and methods comprising smart sample catcher for drilling operations |
| CN113494289A (en) * | 2020-03-18 | 2021-10-12 | 中国海洋石油集团有限公司 | Oil gas drilling hydrogen sulfide invasion early monitoring device based on semiconductor current transformation |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019079666A1 (en) * | 2017-10-19 | 2019-04-25 | Saudi Arabian Oil Company | Systems and methods comprising smart sample catcher for drilling operations |
| US10478754B2 (en) | 2017-10-19 | 2019-11-19 | Saudi Arabian Oil Company | Systems and methods comprising smart sample catcher for drilling operations |
| CN111247307A (en) * | 2017-10-19 | 2020-06-05 | 沙特阿拉伯石油公司 | System and method including intelligent sample trap for drilling operations |
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| CN108005600A (en) * | 2017-12-25 | 2018-05-08 | 中国石油集团川庆钻探工程有限公司 | Vacuum type closed vibrating screen |
| CN108104745A (en) * | 2017-12-25 | 2018-06-01 | 中国石油集团川庆钻探工程有限公司 | Safe and environment-friendly closed circulation drilling ground operation method |
| CN108194041A (en) * | 2017-12-25 | 2018-06-22 | 中国石油集团川庆钻探工程有限公司 | Method for removing hydrogen sulfide gas in well drilling |
| CN108222869A (en) * | 2017-12-25 | 2018-06-29 | 中国石油集团川庆钻探工程有限公司 | Safe and environment-friendly closed under-balanced drilling ground operation method |
| CN113494289A (en) * | 2020-03-18 | 2021-10-12 | 中国海洋石油集团有限公司 | Oil gas drilling hydrogen sulfide invasion early monitoring device based on semiconductor current transformation |
| CN113494289B (en) * | 2020-03-18 | 2023-09-01 | 中国海洋石油集团有限公司 | Oil gas drilling hydrogen sulfide invasion early monitoring device based on semiconductor current transformation |
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Application publication date: 20170912 |