CN109339699A - A kind of sealing and circulating controlled pressure drilling design method - Google Patents
A kind of sealing and circulating controlled pressure drilling design method Download PDFInfo
- Publication number
- CN109339699A CN109339699A CN201811287677.2A CN201811287677A CN109339699A CN 109339699 A CN109339699 A CN 109339699A CN 201811287677 A CN201811287677 A CN 201811287677A CN 109339699 A CN109339699 A CN 109339699A
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- CN
- China
- Prior art keywords
- pressure
- sealing
- well
- drilling
- controlled pressure
- 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 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 title claims abstract description 18
- 230000007613 environmental effect Effects 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 238000011156 evaluation Methods 0.000 claims abstract description 4
- 238000010206 sensitivity analysis Methods 0.000 claims abstract description 4
- 238000004088 simulation Methods 0.000 claims abstract description 4
- 239000011435 rock Substances 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 7
- 229910052717 sulfur Inorganic materials 0.000 abstract description 7
- 239000011593 sulfur Substances 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 14
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 239000003208 petroleum 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
- E21B7/00—Special methods or apparatus for drilling
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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 invention discloses a kind of sealing and circulating controlled pressure drilling design methods, it is related to sulfur crude gas well sealing and circulating controlled pressure drilling technical field of operation, its step are as follows: step 1: according to offset well Geological Environmental Factors situation: prediction, engineering geology fundamental analysis, reservoir sensitivity analysis and the reservoir properties analysis of three pressure traverse of underground, accurate description underground Geological Environmental Factors, carry out sealing and circulating controlled pressure drilling Adaptability Evaluation；Step 2: in conjunction with this well casing programme and drilling fluid performance parameters situation, carry out fine elevation computation simulation, the main dynamic influence to bottom pressure of annulus multi phase flow after comprehensively considering deep-well temperature field, high temperature and pressure density feature and rheological characteristic, landwaste solubility, stratum outlet, designs optimal initial density and control casing pressure.This method designs optimal initial density and control casing pressure, makes it flexibly reply and expects and actual formation pressure, the offset issue of leakage pressure.
Description
Technical field
The present invention relates to sulfur crude gas well sealing and circulating controlled pressure drilling technical field of operation, specifically relate to one kind and are used for
The design method of sulfur-bearing formation sealing and circulating controlled pressure drilling key parameter.
Background technique
With oil-gas exploration further deeply, China at present Sichuan, Bohai Sea Gulf, Erdos, Tarim Basin and
The pernicious gases such as hydrogen sulfide are had found in the deep oil-gas layers such as Zhunger Basin, seriously hinder the exploration and development process on such stratum.
Currently, China's sulfur Gas Fields gas yield accounts for the 60% of national gas yield, wherein sulfur-containing gas yield in the Sichuan Basin accounts for total output
80%.Therefore, the development and application for accelerating sour gas reservoir help to solve China's oil gas supply amount, ensure national energy security.With
The continuous exploitation of petroleum resources and increasingly failure are faced with well control peace using the probing that conventional drilling technologies carry out sulfur crude gas reservoir
Congruent problem, sealing and circulating controlled pressure drilling technology can effectively solve the problem that sulfur-bearing formation well control safety problem, and realization is safely and fast bored
Well.
Publication No. 104563870A, publication date are that the Chinese patent literature on April 29th, 2015 discloses a kind of pressure control
Gas drilling device and method, device include supercharging air system, well head system, pneumatics drilling machine and drilling machine choke manifold, wherein
Supercharging air system includes supercharger and/or air compressor machine, gas flow and manograph, relief tube and/or bypass pipe, emptying
Pipe, control valve.It further include back pressure system and fine choke manifold in device, well head system is equipped with swivel control head, back pressure system
System and fine choke manifold are connect with swivel control head.The invention this propose pressure control gas drilling method, comprising the following steps:
Formation pore pressure is calculated by well-log information；In the case of normal drilling, stratum annular pressure etc. is maintained by well head throttle valve
In formation pore pressure；When making up a joint or making a trip, the loss of pit shaft circulating pressure is adjusted and compensated with back pressure system.It should
Invention solves in gas drilling implementation process, and there are formation water output phenomenon, very good solution bad ground safety drilling is asked
Topic.
But using above patent document as the prior art of representative, estimated and actual formation pressure, leakage cannot be flexibly coped with
The offset issue of loss pressure.
Summary of the invention
The present invention is directed to provide a kind of sealing and circulating controlled pressure drilling for defect and deficiency present in the above-mentioned prior art
Design method, this method design optimal initial density and control casing pressure, make it flexibly to cope with it is estimated with actual formation pressure,
The offset issue of leakage pressure.
The present invention is realized by using following technical proposals:
A kind of sealing and circulating controlled pressure drilling design method, it is characterised in that:
Step 1: according to offset well Geological Environmental Factors situation: prediction, engineering geology fundamental analysis, the storage of three pressure traverse of underground
Layer sensitivity analysis and reservoir properties analysis, it is accurate to describe underground Geological Environmental Factors, carry out sealing and circulating controlled pressure drilling and adapts to
Property evaluation；
Step 2: fine elevation computation simulation is carried out in conjunction with this well casing programme and drilling fluid performance parameters situation, it is main comprehensive
Annulus multi phase flow is dynamic to well after conjunction consideration deep-well temperature field, high temperature and pressure density feature and rheological characteristic, landwaste solubility, stratum outlet
Optimal initial density and control casing pressure are designed in the influence of bottom pressure.
The engineering geology basis includes stratum and structural property, rock behavio(u)r and fluid behaviour.
Compared with prior art, the beneficial effects obtained by the present invention are as follows it is as follows:
By above-mentioned design method, it can guarantee the relative equilibrium of sealing and circulating controlled pressure drilling process bottom pressure, realize close
The safety and environmental protection operation of closed loop controlled pressure drilling.The present invention mainly passes through geologic parameter and engineering parameter organically combines, and simulates
Optimal initial density and control casing pressure, have stronger directive significance for sealing and circulating controlled pressure drilling in drilling process.
Detailed description of the invention
Below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail, in which:
Fig. 1 is operation schematic diagram of the invention.
Specific embodiment
Referring to Figure of description, as preferred forms of the invention, it discloses a kind of sealing and circulating controlled pressure drillings
Design method.It the steps include:
Step 1: according to offset well Geological Environmental Factors situation: the prediction of three pressure traverse of underground, engineering geology fundamental analysis (
Layer and structural property, rock behavio(u)r, fluid behaviour), reservoir sensitivity analysis, reservoir properties analysis etc., it is accurate with describing underground
Matter environmental factor carries out sealing and circulating controlled pressure drilling Adaptability Evaluation；
Step 2: fine elevation computation simulation is carried out in conjunction with this well casing programme and drilling fluid performance parameters situation, it is main comprehensive
Close dynamic etc. pair of annulus multi phase flow after considering deep-well temperature field, high temperature and pressure density feature and rheological characteristic, landwaste solubility, stratum outlet
Optimal initial density and control casing pressure are designed in the influence of bottom pressure.The hydrogen sulfide entered by above-mentioned process flow, underground
Pernicious gas is removed, and will not damage to personnel after burning and environment pollutes, and realizes closed under balance pressure drilling
Safety and environmental protection operation.
Claims (2)
1. a kind of sealing and circulating controlled pressure drilling design method, it is characterised in that steps are as follows:
Step 1: according to offset well Geological Environmental Factors situation: prediction, engineering geology fundamental analysis, the storage of three pressure traverse of underground
Layer sensitivity analysis and reservoir properties analysis, it is accurate to describe underground Geological Environmental Factors, carry out sealing and circulating controlled pressure drilling and adapts to
Property evaluation；
Step 2: fine elevation computation simulation is carried out in conjunction with this well casing programme and drilling fluid performance parameters situation, it is main comprehensive
Annulus multi phase flow is dynamic to well after conjunction consideration deep-well temperature field, high temperature and pressure density feature and rheological characteristic, landwaste solubility, stratum outlet
Optimal initial density and control casing pressure are designed in the influence of bottom pressure.
2. a kind of sealing and circulating controlled pressure drilling design method according to claim 1, it is characterised in that: the engineering
Matter basis includes stratum and structural property, rock behavio(u)r and fluid behaviour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811287677.2A CN109339699A (en) | 2018-10-31 | 2018-10-31 | A kind of sealing and circulating controlled pressure drilling design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811287677.2A CN109339699A (en) | 2018-10-31 | 2018-10-31 | A kind of sealing and circulating controlled pressure drilling design method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109339699A true CN109339699A (en) | 2019-02-15 |
Family
ID=65313179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811287677.2A Pending CN109339699A (en) | 2018-10-31 | 2018-10-31 | A kind of sealing and circulating controlled pressure drilling design method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109339699A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213830A (en) * | 2014-07-30 | 2014-12-17 | 中国石油集团钻井工程技术研究院 | Managed pressure drilling method for geological conditions of narrow safe density window |
| CN107035328A (en) * | 2017-06-21 | 2017-08-11 | 西南石油大学 | A kind of method of controlled pressure drilling throttling back pressure control |
| CN206830170U (en) * | 2017-03-13 | 2018-01-02 | 中国石油集团钻井工程技术研究院 | A kind of leakage real-time detecting system for controlled pressure drilling |
| US20180069981A1 (en) * | 2016-09-07 | 2018-03-08 | Zih Corp. | Method and apparatus to communicate data associated with media processing devices |
| US20190045260A1 (en) * | 2016-02-01 | 2019-02-07 | Panasonic Intellectual Property Corporation Of America | Client, server, reception method and transmission method |
-
2018
- 2018-10-31 CN CN201811287677.2A patent/CN109339699A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213830A (en) * | 2014-07-30 | 2014-12-17 | 中国石油集团钻井工程技术研究院 | Managed pressure drilling method for geological conditions of narrow safe density window |
| US20190045260A1 (en) * | 2016-02-01 | 2019-02-07 | Panasonic Intellectual Property Corporation Of America | Client, server, reception method and transmission method |
| US20180069981A1 (en) * | 2016-09-07 | 2018-03-08 | Zih Corp. | Method and apparatus to communicate data associated with media processing devices |
| CN206830170U (en) * | 2017-03-13 | 2018-01-02 | 中国石油集团钻井工程技术研究院 | A kind of leakage real-time detecting system for controlled pressure drilling |
| CN107035328A (en) * | 2017-06-21 | 2017-08-11 | 西南石油大学 | A kind of method of controlled pressure drilling throttling back pressure control |
Non-Patent Citations (2)
| Title |
|---|
| 梁玉林: "《控压钻井技术应用研究》", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
| 郭忠明: "《控压钻井井筒压力控制参数设计及实时计算研究》", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |
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| RJ01 | Rejection of invention patent application after publication |