CN102999653A - System design method based on axiom - Google Patents
System design method based on axiom Download PDFInfo
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- CN102999653A CN102999653A CN 201110290386 CN201110290386A CN102999653A CN 102999653 A CN102999653 A CN 102999653A CN 201110290386 CN201110290386 CN 201110290386 CN 201110290386 A CN201110290386 A CN 201110290386A CN 102999653 A CN102999653 A CN 102999653A
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Abstract
The invention discloses a system design method based on an axiom, comprising the following steps: (a) determining CAs (criteria) of customers which is required to be met by the system in a user domain and the attribution of the criteria, and determining FRs (failure rates) that the system meets the CAs in a functional domain as well as Cs (constraints) of the FRs; (b) performing inter-domain mapping; (c) determining functional independence during design of the system; (d) determining the optimal design; (e) defining a module; (f) decomposing the module; and (g) establishing the characters of the system structure. System design based on the axiom can be completed rapidly by the system design method based on the axiom, and the system design method based on the axiom has the advantages of simple design step, accurate design method and great analysis and design cost reduction.
Description
Technical field
The present invention relates to a kind of based on the design method under the Design In Axiomatic Design.
Background technology
The casing failure in oil field in the petroleum engineering field, is commonly called casing failure and casing deformation, is called for short " cover decreases cover and becomes ".Casing failure refers in oilfield process since the load that the factors such as engineering, geology, production dynamic change produce sleeve pipe cause when surpassing bearing capacity of casing sleeve pipe distortion, break, the general name of the damage type such as bad break.In the oilfield exploitation procedure, particularly the casing failure problem of oil-gas field development middle and later periods be perplex at present China and even All Around The World development of oil industry a chronic illness.It also is one of crucial difficult problem that affects the petroleum industry exploitation, increases the benefit.
In decades, the research of relevant oil gas field casing failure never is interrupted, huge manpower and materials have all been dropped into to the research of casing failure in the oil field of various countries, people are from oil geology, reservoir engineering, Materials Science and Engineering, rock mechanics, the mechanics of materials, geomechanics, permeation fluid mechanics, the multidisciplinary different angle such as corrosion electrochemistry is to the form of casing failure, the reason that casing failure produces, the numerical simulation of casing failure, the metering system of casing failure, the mechanism of casing failure and the control of casing failure, a large amount of research has been carried out in the aspects such as reparation, and has obtained certain achievement.But because casing failure the complex nature of the problem, above-mentioned study general all is for a certain oil field, block, specific hole condition carries out, the finite element analysis that numerical simulation is also carried out according to the very little regional area scope around the individual well often, shortage is considered the multidisciplinary overall on a large scale of the problems referred to above, and because as if a lot of problems in the casing failure be more suitable for adopting the mode of numerical simulation to analyze, therefore up to the present, yet nobody carries out the experience that casing failure is analyzed with people in decades, knowledge is concluded, carrying out expert system processes, so the improvement of casing failure problem is produced effects still very little at present, the sleeve in oil field Problem of Failure still occurs again and again, has become a great problem of restriction oil field development.
Add up to, the reason that causes sleeve in oil field to lose efficacy is a lot.People ascribe the reason of casing failure to geologic agent traditionally: such as mud stone imbibition, rock stratum creep, fault movements, formation sand production etc.; Engineering factor; Improper such as engineering design, the various construction operations such as the long-term high pressure water injection exploitation in the production run, fracture acidizing are improper etc.; Other factors: such as perforation problem, etching problem etc.And this inefficacy often is not a kind of result of factor effect, but because the interactional common result of multiple different factor.This has brought very large difficulty for the research work of casing failure.
From the angle of science, the casing failure in the oilfield development process, be actually buried Casing Failure in stratal configuration under the effect of rock stratum terrestrial stress and other physical chemical factor distortion and the result of damage.Be actually the result of sleeve structure thing and rock stratum terrestrial stress and other the factor interactions such as physical chemistry.Except damage such as picture corrosion etc. is to be subjected to chemical action or the electrochemical action factor affecting, the casing failure problem in oil field is nearly all relevant with the peripherally variation of stress of oil well.So in a sense, in fact the casing failure problem is exactly the sleeve structure thing and the problem that intercouples of the rock mass with pore fluid, has not only comprised the collapse resistance problem of shell material but also comprised the in process of production variation issue of oil-water well surrouding rock stress on every side here.
Existing a large amount of research work is verified, solve the casing failure problem in what a oil field, and the key issue of its core is to make the casing failure mechanism in this oil field clear, and this problem plays conclusive effect in the casing failure control.Just because of this reason, in decades, a large amount of casing failures and the research worker of control respectively for different oil field concrete conditions, have proposed many different casing failure mechanism theory.But because casing failure the complex nature of the problem, and the casing failure problem relates to nearly all production technical field in oil field, from oil field geologic, Drilling Design to completion technique; Adopting of the enforcement of the adjustment from the oil-water well producting rule to development plan, production measure and engineering measure makes the casing failure mechanism problem of inquiring into the oil field become very complicated.Particularly in recent years, development along with modern science and technology, petroleum industry has entered a brand-new developing stage, a large amount of uses of the appearance of the exploitation of viscous crude, deep-well, ultra deep well and orientation well, horizontal well, multiple wells and Multilateral Wells technology, so that in drilling process may increase the damage of sleeve pipe, more increase the probability of casing failure, increased the difficulty of definite casing failure mechanism.
Therefore, how can be from the great mass of data and process of complicated oil field geologic, engineering, design, construction, production development, well workover, as soon as possible, correct finding out causes sleeve in oil field inefficacy main cause, correct judgement sleeve in oil field failure mechanism is to solving and preventing that the sleeve in oil field Problem of Failure from being very important.
The Analysis on Mechanism of casing failure is a performing creative labour complexity, arduous.Be one and relate to oil field geologic, drilling engineering, whole development the establishment of the project and adjustment, the systems engineering of the every aspects such as employing of production measure; It is the core of preventing and treating targetedly, delay, solve the sleeve in oil field Problem of Failure.This work, equally to the oil field carry out new well construction geology, engineering design, and the adjustment of oilfield development program, the formulation of production measure all has very strong directive significance.
But sleeve in oil field failure cause and research on mechanism are judged, early stage all is to be finished by the brainstrust in this field, in recent years, along with the development of computer technology and the widespread use of Finite Element Method, and the deepening continuously of human understanding to rock mechanics, permeation fluid mechanics and plasto-elasticity, people have more and more used the method for numerical simulation to analyze the casing failure problem in the analysis of causes of a part of casing deformation, have formed the mode that adopts knowledge analysis and numerical analysis to lay equal stress on to the casing failure problem.Attaching undue importance to one thing to the neglect of the other all of any mode can not all solve the casing failure problem in oil field.And the employing knowledge analysis is main or namely allows to adopt numerical analysis, is the world that expert system is put ability to good use just but numerical analysis can not solve again the field of whole issue.Up to the present, the research that sleeve in oil field lost efficacy rests in the knowledge analysis or numerical analysis for single casing failure form basically, also nobody is engaged in and sets up a casing failure problem to all generations that can cover whole oil field, unify analyzing and processing efficiently, Expert System Study efficiently.Setting up one contains expert system that whole sleeve in oil field lost efficacy China and even global oil field is all had important theory significance and current meaning to the improvement of casing failure.
Axiomatic Design is divided into 4 territories with design problem.Design is " what is expected " and " How to choose is to satisfy the demands " interactional process.For this interactional procedures system has been introduced the concept in " territory ", " territory " is the separatrix of 4 different design activities, is an important foundation of Design In Axiomatic Design.Axiomatic Design thinks that design problem can be divided into 4 design domain: client territory (Consumer Domain), functional domain (Function Domain), domain (Physical Domain) and technique territory (Process Domain).Corresponding design element separately in each territory, be customer demand (CustomerNeeds), functional requirement (Function Requirements), design parameter (Design Parameters) and state-variable (Process Variables).
Summary of the invention
Purpose of the present invention is in order to overcome the deficiencies in the prior art and defective, provide a kind of based on the design method under the Design In Axiomatic Design, this method for designing can be finished fast based on the system under the Design In Axiomatic Design, and design procedure is simple, method for designing is accurate, greatly reduces the analysis design cost.
Purpose of the present invention is achieved through the following technical solutions: a kind of based on the design method under the Design In Axiomatic Design, may further comprise the steps:
(a) at first, determine system must satisfy in the user domain consumer demand CAs and attribute thereof. and then determine that in functional domain system satisfies the FRs of CAs and the constraint condition Cs of these FRs thereof;
(b) then, shine upon between the territory;
(c) then, the independence of the function in the system;
(d) optimal design;
(e) definition module;
(f) decompose;
(g) sign of system architecture.
In the described step (c): when having several FRs must be met simultaneously, the deviser must be so that design matrix becomes diagonal matrix or triangle battle array.
In the described step (d), allowing DPs and PVs that larger variance is arranged also can be to design the design of satisfying FRs to be referred to as Robust design.
In the described step (g): the hierarchical structure that FRs, DPs, PVs set up in decomposable process and corresponding design matrix have characterized the structure of system, and this system architecture characterizes out clearly by the connection layout of module.
In sum, the invention has the beneficial effects as follows: can finish fast based on the system under the Design In Axiomatic Design, and design procedure is simple, method for designing is accurate, greatly reduces the analysis design cost.
Embodiment
Below in conjunction with embodiment, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited to this.
Embodiment:
The present invention relates to a kind ofly based on the design method under the Design In Axiomatic Design, may further comprise the steps:
(a) at first, determine system must satisfy in the user domain consumer demand CAs and attribute thereof, and then determine that in functional domain system satisfies the FRs of CAs and the constraint condition Cs of these FRs thereof;
(b) then, shine upon between the territory;
(c) then, the independence of the function in the system;
(d) optimal design;
(e) definition module;
(f) decompose;
(g) sign of system architecture.
In the described step (c): when having several FRs must be met simultaneously, the deviser must be so that design matrix becomes diagonal matrix or triangle battle array.
In the described step (d), allowing DPs and PVs that larger variance is arranged also can be to design the design of satisfying FRs to be referred to as Robust design.
In the described step (g): the hierarchical structure that FRs, DPs, PVs set up in decomposable process and corresponding design matrix have characterized the structure of system, and this system architecture characterizes out clearly by the connection layout of module.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, and any simple modification, the equivalent variations on every foundation technical spirit of the present invention above embodiment done all fall within protection scope of the present invention.
Claims (4)
1. one kind based on the design method under the Design In Axiomatic Design, it is characterized in that, may further comprise the steps:
(a) at first, determine system must satisfy in the user domain consumer demand CAs and attribute thereof, and then determine that in functional domain system satisfies the FRs of CAs and the constraint condition Cs of these FRs thereof;
(b) then, shine upon between the territory;
(c) then, the independence of the function in the system;
(d) optimal design;
(e) definition module;
(f) decompose;
(g) sign of system architecture.
2. according to claim 1 a kind ofly it is characterized in that based on the design method under the Design In Axiomatic Design, in the described step (c): when having several FRs must be met simultaneously, the deviser must be so that design matrix becomes diagonal matrix or triangle battle array.
3. according to claim 1 a kind ofly it is characterized in that based on the design method under the Design In Axiomatic Design, in the described step (d), allow DPs and PVs that larger variance is arranged and can be that the design that FRs is satisfied in design is referred to as Robust design.
4. according to claim 1 a kind of based on the design method under the Design In Axiomatic Design, it is characterized in that, in the described step (g): the hierarchical structure that FRs, DPs, PVs set up in decomposable process and corresponding design matrix have characterized the structure of system, and this system architecture characterizes out clearly by the connection layout of module.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104778249A (en) * | 2015-04-15 | 2015-07-15 | 福建工程学院 | Information architecture method based on AD theory |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778249A (en) * | 2015-04-15 | 2015-07-15 | 福建工程学院 | Information architecture method based on AD theory |
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Application publication date: 20130327 |