CN107392505A - Natural gas hydrate exploration develops well logging engineering comprehensive explanation evaluating method - Google Patents
Natural gas hydrate exploration develops well logging engineering comprehensive explanation evaluating method Download PDFInfo
- Publication number
- CN107392505A CN107392505A CN201710732783.6A CN201710732783A CN107392505A CN 107392505 A CN107392505 A CN 107392505A CN 201710732783 A CN201710732783 A CN 201710732783A CN 107392505 A CN107392505 A CN 107392505A
- Authority
- CN
- China
- Prior art keywords
- parameter
- reservoir
- gas
- interpretation
- drilling fluid
- 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
- 238000000034 method Methods 0.000 title claims abstract description 31
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 112
- 238000011156 evaluation Methods 0.000 claims abstract description 64
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 46
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 46
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 46
- 238000004458 analytical method Methods 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 150000004677 hydrates Chemical class 0.000 claims abstract description 18
- 230000010354 integration Effects 0.000 claims abstract description 6
- 238000012216 screening Methods 0.000 claims abstract description 6
- 238000005553 drilling Methods 0.000 claims description 84
- 239000012530 fluid Substances 0.000 claims description 79
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 41
- 230000015572 biosynthetic process Effects 0.000 claims description 23
- 239000003345 natural gas Substances 0.000 claims description 20
- 230000008859 change Effects 0.000 claims description 17
- 230000002159 abnormal effect Effects 0.000 claims description 16
- -1 Natural Gas Hydrates Chemical class 0.000 claims description 14
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 11
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 9
- 238000004587 chromatography analysis Methods 0.000 claims description 8
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 claims description 6
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 claims description 6
- YQNRVGJCPCNMKT-JLPGSUDCSA-N 2-(4-benzylpiperazin-1-yl)-n-[(2-hydroxy-3-prop-2-enyl-phenyl)methylideneamino]acetamide Chemical compound OC1=C(CC=C)C=CC=C1\C=N/NC(=O)CN1CCN(CC=2C=CC=CC=2)CC1 YQNRVGJCPCNMKT-JLPGSUDCSA-N 0.000 claims description 5
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 5
- 230000000704 physical effect Effects 0.000 claims description 5
- 239000001294 propane Substances 0.000 claims description 5
- 241000208340 Araliaceae Species 0.000 claims description 4
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 4
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 4
- 235000008434 ginseng Nutrition 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- IJDNQMDRQITEOD-UHFFFAOYSA-N sec-butylidene Natural products CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 3
- 150000001924 cycloalkanes Chemical class 0.000 claims description 3
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 claims description 3
- 239000001282 iso-butane Substances 0.000 claims description 3
- 235000013847 iso-butane Nutrition 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
Landscapes
- Business, Economics & Management (AREA)
- Human Resources & Organizations (AREA)
- Engineering & Computer Science (AREA)
- Economics (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Educational Administration (AREA)
- Marketing (AREA)
- Entrepreneurship & Innovation (AREA)
- Theoretical Computer Science (AREA)
- Development Economics (AREA)
- Physics & Mathematics (AREA)
- General Business, Economics & Management (AREA)
- Operations Research (AREA)
- Quality & Reliability (AREA)
- Game Theory and Decision Science (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- Examining Or Testing Airtightness (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of natural gas hydrate exploration to develop well logging engineering comprehensive explanation evaluating method.It is comprised the following steps that：Gather, handle, store, record and calculate in real time by gas detection analyzer, engineering logging instrument, light hydrocarbon analysis instrument, obtain every logging parameters；Acquired all logging parameters are classified, screened, analysis determines can be as the data item of gas hydrates well logging engineering comprehensive interpretation and evaluation parameter；The data integration determined using key parameter and geologic anomaly degree with screening carries out reservoir division；Well logging engineering explains that evaluating substitutes into all kinds of interpretation and evaluation standards and draws integrated interpretation conclusion.The present invention is fixed guantity combining with fixed quality, can precisely determine the well logging engineering comprehensive explanation evaluating method of natural gas hydrate stratum.
Description
Technical field
The present invention relates to a kind of well logging engineering comprehensive explanation evaluating method, especially a kind of natural gas hydrate exploration exploitation
Well logging engineering comprehensive explanation evaluating method.
Background technology
Well logging comprehensive interpretation and evaluation is an important assessment technique means of petroleum exploration and development, conventional oil-gas Layer well logging
Interpretation and evaluation technology has basically reached the stage of ripe application by practice and summary for many years at present, but for gas water
The well logging comprehensive interpretation and evaluation of compound exploration and development, precedent is there is no in world's exploration and development history, both without experience, also without ginseng
According to.
Using pit shaft information, from the angle of geochemical analysis, solution is integrated in the well logging of identification natural gas hydrate stratum
Release and establish corresponding method in evaluation.This method has uniqueness in the quick look evaluation of gas hydrates reservoir
Technical advantage, particularly fast and accurately comprehensive interpretation and evaluation result can be provided in the very first time in the deep-sea well logging stage, be
Other explanation evaluating methods are irreplaceable.
In the well logging comprehensive interpretation and evaluation of actual gas hydrates, in addition to reference to related geologic information, mainly analyze
By the total hydrocarbon in gas logging abnormal show of explanation well longitudinal direction and the relative change of component, and drilling fluid conductivity, density, temperature and engineering
The change of the parameters such as the vertical pressure of parameter, the pressure of the drill carrys out comprehensive interpretation and evaluation natural gas hydrate stratum.Because gas hydrates store up
The particularity of layer, these information can be influenceed in drilling course by down hole problem, in practice interpretation evaluation procedure
Have certain deviation.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of natural gas hydrate exploration to develop well logging engineering comprehensive solution
Evaluation method is released, is fixed guantity combining with fixed quality, can precisely determine new special formation fluid natural gas hydrate stratum
Well logging engineering comprehensive explanation evaluating method.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of natural gas hydrate exploration exploitation
Well logging engineering comprehensive explanation evaluating method, comprises the following steps：
(1) gathered, handled in real time by gas detection analyzer, engineering logging instrument, light hydrocarbon analysis instrument, stored, recorded and
Calculate, obtain every logging parameters；
(2) acquired all logging parameters are classified, screened, analysis determination can be used as gas hydrates well logging
The data item of engineering comprehensive interpretation and evaluation parameter；
(3) data integration determined using key parameter and geologic anomaly degree with screening carries out reservoir division；
(4) well logging engineering explains that evaluating substitutes into all kinds of interpretation and evaluation standards and draws integrated interpretation conclusion.
In the step (1), the reflection reservoir that gas detection analyzer obtains is containing Natural Gas Hydrates or containing natural
The parameter of gas property includes total hydrocarbon TG contents and chromatographic component content, and chromatographic component refers to methane C1, ethane C2, propane C3, isobutyl
Alkane iC4, normal butane nC4, isopentane iC5, pentane nC5。
In the step (1), engineering logging instrument obtains reflection reservoir drillability and the engineering of thickness and drillng operation state
Logging parameters, including ROP, min/m during brill；The pressure of the drill WOB, kN；Weight on hook WOH, kN；Rotary speed RPM, r/min；Moment of torsion
TORQ, kN.m；Pump punch speed SPM, stroke/min；Depth DEPTH, m.
In the step (1), engineering logging instrument obtains the drilling liquid parameter of reflection reservoir fluid physical property and stratum permeability,
Including standpipe pressure SPP, MPa；Drilling fluids outlet flow MFO, %；Drilling fluid pot volume MV, m3；Drilling fluid outlet density MWO,
g/cm3；Drilling fluid outlet electrical conductivity MCO, mS/cm；Drilling fluid outlet temperature MTO, DEG C.
In the step (1), the reflection reservoir that light hydrocarbon analysis instrument obtains is containing Natural Gas Hydrates or containing natural gas
The parameter of matter includes C1~C9Between normal hydrocarbon, isohydrocarbon, cycloalkane and aromatic hydrocarbon amount to 103 parameters.
In the step (1), every logging parameters include the reflection reservoir properties that calculating handles to obtain, are hydrated containing natural gas
The parameter of physical property matter or the property containing natural gas includes leaking fast LS, m3/h；Weight is than Lw, C1/C2 +；C1Relative amount, C1/TG；Humidity
Compare WH；Equilibrium ratio BH；Aspect ratio CH；Aridity coefficient DC；Total hydrocarbon peak area PATG；C1Peak area PAC1。
In the step (2), it is divided into chromatography parameter, engineering parameter, drilling liquid parameter, light hydrocarbon analysis parameter 4
Class, screen and analyze determine chromatography parameter, light hydrocarbon analysis parameter, standpipe pressure, the pressure of the drill, depth, when boring, drilling fluid outlet
Flow, drilling fluid pot volume, leakage speed, weight ratio, C1Relative amount, aridity coefficient, total hydrocarbon peak area, C1Peak area, drilling fluid go out
Mouth electrical conductivity, density, the data item that temperature is gas hydrates well logging engineering comprehensive interpretation and evaluation parameter.
In the step (3), when the total gas curve form obtained is tested and analyzed according to gas, and being aided with brill, standpipe pressure,
Outlet mud flow rate and drilling fluid pot volume curve variation characteristic determine reservoir thickness, corresponding standpipe pressure curve step liter
It is high or reduce and the speed of leak-off velocity, using the depth of stratum corresponding to total gas curve abnormal show layer plays the half range point at peak as
Reservoir initial depth DEPTH1, corresponding standpipe pressure curve step is raised and lowered and the speed of leak-off velocity, with single aobvious
Show the stratum corresponding to the half range point that last peak at reservoir total gas curve abnormal show peak or continuous veiny display peak falls after rise
Depth is that reservoir terminates depth DEPTH2, its abnormal show reservoir thickness △ DEPTH are that the reservoir terminates depth and the reservoir
The difference of beginning depth, i.e. △ DEPTH=DEPTH2-DEPTH1。
In the step (4), whether enter gas-bearing reservoir evaluation rubric, and foundation extremely according to gas detection and analysis parameter
Relevance parameter, the derived character parameter of calculating processing acquisition and the interpretation and evaluation standard that direct measurement obtains show that reservoir is final
Explain conclusion：
(1) there is abnormal gas to survey display if boring and meeting reservoir, surveyed by gas and derive from parameter interpretation evaluation criterion, when gas surveys ratio
Parameter Lw is in 500~800, XCC1In 80~85, DC in 0.998~0.999, light hydrocarbon analysis parameter PAC1More than 10000, PATGGreatly
When 10000, the reservoir is gas hydrates layer；Ratio parameter Lw, which is surveyed, when gas is less than 500 or more than 800, XCC1Less than 80 or
It is less than 0.998 or more than 0.999, light hydrocarbon analysis parameter PA more than 85, DCC1Less than 10000, PATGDuring less than 10000, the reservoir
For the gas-bearing formation that dissociates；
(2) evaluation criterion is explained if boring the reservoir met gas survey display without exception or not meeting gas survey characteristic parameter, into brill
Well liquid parameter interpretation flow, determine stratum with the presence or absence of leakage, if there is leakage, analysis by drilling fluids outlet flow, pond body product
Leakage degree, if leak-off velocity is in " leakage " soon, when the change of drilling fluid outlet temperature, density, electrical conductivity meets its explanation
Evaluation criterion is that drilling fluid outlet density is in reduction state and numerical value is less than 1.060~1.045g/cm3, drilling fluid outlet electricity
Conductance be in reduction state and numerical value 91~70mS/cm, drilling fluid outlet temperature be in reduction state and numerical value 15.5~
13.5 DEG C provide gas-bearing formation integrated interpretation conclusion；Then it is hydrated it is determined that providing the reservoir while hydrate reservoir boundary for natural gas
The integrated interpretation conclusion of nitride layer；
(3) if leakage degree is " oozing ", when the change of drilling fluid outlet temperature, density, electrical conductivity meets its interpretation and evaluation
Standard is that drilling fluid outlet density is in increasing state and numerical value is more than 1.060g/cm3, drilling fluid outlet conductivity values are more than
91mS/cm is in increasing state and numerical value then directly gives the storage more than 15.5 DEG C less than 70mS/cm, drilling fluid outlet temperature
Layer is the integrated interpretation conclusion of free gas-bearing formation；
(4) if not meeting interpretation and evaluation standard without drilling fluid leakage or drilling fluid outlet temperature, density, conductivity parameters,
Flow is explained into engineering parameter：If the pressure of the drill, standpipe pressure parameter change, by its interpretation and evaluation standard, when the pressure of the drill exists
When 30~114kN, standpipe pressure are more than 1.7MPa, the reservoir is gas hydrates layer；When the pressure of the drill is less than 30kN or is more than
When 114kN, standpipe pressure are less than 1.7MPa, the reservoir is free gas-bearing formation；
(5) if the pressure of the drill, standpipe pressure parameter are unchanged or change does not meet its interpretation and evaluation standard, the stratum is non-storage
Collect layer.
The beneficial effects of the invention are as follows：Well logging engineering comprehensive explanation evaluating method is developed using natural gas hydrate exploration,
Quickly and accurately provide the judgement of gas hydrates reservoir and gas-bearing reservoir, be gas hydrates reservoir efficiently, safety,
Scientifically drill and develop and reliable foundation is provided.
Brief description of the drawings
Fig. 1 is the flow chart that natural gas hydrate exploration of the present invention develops well logging engineering comprehensive explanation evaluating method；
Fig. 2 is that natural gas hydrate exploration of the present invention develops well logging engineering comprehensive interpretation and evaluation reservoir differentiation flow chart.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
As shown in figure 1, the natural gas hydrate exploration exploitation well logging engineering comprehensive explanation evaluating method of the present invention, specific step
It is rapid as follows：
(1) collection in real time such as gas detection analyzer, engineering logging instrument, light hydrocarbon analysis instrument, processing, storage and note are passed through
The step of recording every logging parameters (data)；
(2) acquired all logging parameters are included with calculating data to be classified, screened, analysis determination can be used as day
The step of data item of right gas hydrate well logging engineering comprehensive interpretation and evaluation parameter；
(3) the step of data integration determined using key parameter and geologic anomaly degree with screening carries out reservoir division；
(4) well logging engineering explains that evaluating substitutes into the step of all kinds of interpretation and evaluation standards draw integrated interpretation conclusion.
It is each by the collection in real time such as gas detection analyzer, engineering logging instrument, light hydrocarbon analysis instrument, processing, storage and record
In the step of item logging parameters data, the reflection reservoir that gas detection analyzer obtains is containing Natural Gas Hydrates or containing natural
The parameter of gas property includes total hydrocarbon TG contents and chromatographic component content, and chromatographic component refers to methane C1, ethane C2, propane C3, isobutyl
Alkane iC4, normal butane nC4, isopentane iC5, pentane nC5。
It is each by the collection in real time such as gas detection analyzer, engineering logging instrument, light hydrocarbon analysis instrument, processing, storage and record
In the step of item logging parameters data, engineering logging instrument obtains reflection reservoir pore space and the engineering of thickness and drillng operation state
ROP, min/m when logging parameters include boring；The pressure of the drill WOB, kN；Weight on hook WOH, kN；Rotary speed RPM, r/min；Moment of torsion
TORQ, kN.m；Pump punch speed SPM, stroke/min；Depth DEPTH, m.
It is each by the collection in real time such as gas detection analyzer, engineering logging instrument, light hydrocarbon analysis instrument, processing, storage and record
In the step of item logging parameters data, engineering logging instrument obtains the drilling liquid parameter of reflection reservoir fluid physical property and stratum permeability
Including standpipe pressure SPP, MPa；Drilling fluids outlet flow MFO, %；Drilling fluid pot volume MV, m3；Drilling fluid outlet density MWO,
g/cm3；Drilling fluid outlet electrical conductivity MCO, mS/cm；Drilling fluid outlet temperature MTO, DEG C.
It is each by the collection in real time such as gas detection analyzer, engineering logging instrument, light hydrocarbon analysis instrument, processing, storage and record
In the step of item logging parameters data, the reflection reservoir that light hydrocarbon analysis instrument obtains is containing Natural Gas Hydrates or containing natural gas
The parameter of matter includes C1~C9Between normal hydrocarbon, isohydrocarbon, cycloalkane and aromatic hydrocarbon amount to 103 parameters.
It is each by the collection in real time such as gas detection analyzer, engineering logging instrument, light hydrocarbon analysis instrument, processing, storage and record
In the step of logging parameters data, reflection reservoir properties that calculating handles to obtain, containing Natural Gas Hydrates or containing natural
The parameter of gas property includes leaking fast LS, m3/h；Weight is than Lw, C1/C2 +；C1Relative amount, C1/TG；Humidity ratio WH；Equilibrium ratio BH；
Aspect ratio CH；Aridity coefficient DC；Total hydrocarbon peak area PATG；C1Peak area PAC1。
Acquired all logging parameters are included with calculating data to be classified, screened, analysis determination can be used as natural gas
In the step of data item of hydrate well logging engineering comprehensive interpretation and evaluation parameter, chromatography parameter, engineering parameter, brill are categorized as
Well liquid parameter, the class of light hydrocarbon analysis parameter 4, screen and analyze determination chromatography parameter, light hydrocarbon analysis parameter, standpipe pressure, brill
Pressure, depth, bore when, drilling fluids outlet flow, drilling fluid pot volume, leakage speed, weight ratio, C1Relative amount, aridity coefficient, total hydrocarbon
Peak area, C1Peak area, drilling fluid outlet electrical conductivity, density, temperature are gas hydrates well logging engineering comprehensive interpretation and evaluation
The data item of parameter.
In the step of data integration determined using key parameter and geologic anomaly degree with screening carries out reservoir division, root
The total gas curve form obtained according to gas detection and analysis, and when being aided with brill, standpipe pressure, outlet mud flow rate and drilling fluid pot
Volume curve variation characteristic determines reservoir thickness, corresponding standpipe pressure curve step be raised and lowered and leak-off velocity it is fast
Slowly, using the depth of stratum corresponding to the half range point at total gas curve abnormal show layer peak as reservoir initial depth DEPTH1, it is right
Answer standpipe pressure curve step be raised and lowered and the speed of leak-off velocity, with single display reservoir total gas curve abnormal show
Peak or continuous veiny show that the depth of stratum corresponding to the half range point that last peak at peak falls after rise terminates depth for reservoir
DEPTH2, its abnormal show reservoir thickness △ DEPTH are that the reservoir terminates depth and the difference i.e. △ DEPTH of the reservoir initial depth
=DEPTH2-DEPTH1。
Well logging engineering explains that evaluating is substituted into the step of all kinds of interpretation and evaluation standards draw integrated interpretation conclusion, sees figure
Shown in 2, whether enter gas evaluating reservoir flow, and the pass obtained according to direct measurement extremely according to gas detection and analysis parameter
Connection property parameter, the derived character parameter for calculating processing acquisition and interpretation and evaluation standard show that reservoir finally explains conclusion；
There is abnormal gas to survey display if boring and meeting reservoir, surveyed by gas and derive from parameter interpretation evaluation criterion, show that gas-bearing formation integrates
Explain conclusion；
If bore the reservoir met gas survey display without exception or do not meet gas survey characteristic parameter and explain evaluation criterion, into drilling well
Liquid parameter interpretation flow.
Determine that leakage degree with the presence or absence of missing, if there is leakage, is analyzed in stratum by drilling fluids outlet flow, pond body product,
If leak-off velocity is in " leakage " soon, it is determined that providing gas-bearing formation integrated interpretation conclusion while hydrate reservoir boundary；If leakage
Mistake degree is " oozing ", then directly gives gas-bearing formation integrated interpretation conclusion；
If without drilling fluid leakage, by the change of drilling fluid outlet temperature, density, electrical conductivity with its interpretation and evaluation standard
Provide gas-bearing formation integrated interpretation conclusion；
If drilling fluid outlet temperature, density, conductivity parameters are unchanged or do not meet interpretation and evaluation standard, join into engineering
Number explains flow.
If the pressure of the drill, standpipe pressure parameter change, gas-bearing formation integrated interpretation conclusion is drawn by its interpretation and evaluation standard；
If the pressure of the drill, standpipe pressure parameter are unchanged or change is not when meeting its interpretation and evaluation standard, show that non-pneumatic preserves
Layer conclusion.
Gas hydrates reservoir well logging comprehensive interpretation and evaluation standard
The gas of table 1 tests and analyzes interpretation and evaluation standard
The drilling liquid parameter interpretation and evaluation standard of table 2
The engineering logging parameter interpretation evaluation criterion of table 3
| Type | The pressure of the drill (kN) | Vertical pressure (MPa) |
| Gas-bearing formation (hydrate) | 30-114 | ＞ 1.7 |
| Gas-bearing bed (free gas-bearing formation) | 30 ＜ or ＞ 114 | ＜ 1.7 |
As shown in Fig. 2 the implementation of the present invention is, every logging parameters fixed guantity combining with fixed quality in real time is with precisely true
The well logging engineering comprehensive explanation evaluating method of fixed new special formation fluid natural gas hydrate stratum, is comprised the following steps that：
1) collection in real time such as gas detection analyzer, engineering logging instrument, light hydrocarbon analysis instrument, processing, storage and record are passed through
Every logging parameters data.
1. the reflection reservoir that gas detection analyzer, light hydrocarbon analysis instrument obtain is containing Natural Gas Hydrates or containing natural gas
The parameter of property includes total hydrocarbon TG contents, %；Chromatographic component methane C1, ethane C2, propane C3, iso-butane iC4, normal butane nC4, it is different
Pentane iC5, pentane nC5Content, %.
2. engineering logging instrument obtains reflection reservoir rock drillability and the engineering logging parameter of thickness and drillng operation state
ROP, min/m during including boring；The pressure of the drill WOB, kN；Weight on hook WOH, kN；Rotary speed RPM, r/min；Torque T ORQ, kN.m；
Pump punch speed SPM, stroke/min；Depth DEPTH, m.
3. engineering logging instrument, which obtains reflection reservoir fluid physical property and the drilling liquid parameter of stratum permeability, includes standpipe pressure
SPP, MPa；Drilling fluids outlet flow MFO, %；Drilling fluid pot volume MV, m3；Drilling fluid outlet density MWO, g/cm3；Drilling fluid
Export electrical conductivity MCO, mS/cm；Drilling fluid outlet temperature MTO, DEG C.
4. calculating handles obtained reflection reservoir properties, the parameter bag containing Natural Gas Hydrates or the property containing natural gas
Include Lou fast LS, m3/h；Weight compares LW, C1/C2 +；C1Relative amount XCC1；Humidity ratio WH；Equilibrium ratio BH；Aspect ratio CH；Aridity coefficient
DC；Total hydrocarbon peak area PATG；C1Peak area PAC1。
TG=C1+C2+C3+iC4+nC4+iC5+nC5
LS (lost speed)=Δ MFO=Δs MV/t
LW=C1/C2 +=C1/(C2+C3+iC4+nC4+iC5+nC5)
XCC1=C1/ TG*100%=C1/(C1+C2+C3+iC4+nC4+iC5+nC5) * 100%
WH=[(C2+C3+nC4+iC4+nC5+iC5)/(C1+C2+C3+iC4+nC4+iC5+nC5)] * 100%
BH=(C1+C2)/(C3+iC4+nC4+iC5+nC5)
CH=(iC4+nC4+iC5+nC5)/C3
DC=C1/(C1+C2+C3+iC4+nC4+iC5+nC5)
PATG=∫DEPTH1 DEPTH2TG*d(DEPTH)
PAC1=∫DEPTH1 DEPTH2TG*d(DEPTH)
2) acquired all logging parameters are included with calculating data to be classified, screened, analysis determination can be used as natural
The data item of gas hydrate well logging engineering comprehensive interpretation and evaluation parameter.
1. logging parameters are that 4 classes are chromatography parameter, engineering parameter, drilling fluid ginseng according to its acquisition process instrument classification
Number, light hydrocarbon analysis parameter.
2. screen and analyze and determine chromatography parameter methane C1, ethane C2, propane C3, iso-butane iC4, positive definite alkane nC4, it is different
Pentane iC5, pentane nC5, light hydrocarbon analysis parameter C1~C9, bore when ROP, standpipe pressure SPP and the pressure of the drill WOB and depth DEPTH,
Leak fast LS, weight compares LW、C1Relative amount XCC1, aridity coefficient DC, total hydrocarbon peak area PATG、C1Peak area PAC1For gas water
The data item of compound well logging engineering comprehensive interpretation and evaluation parameter.
3) data integration determined using key parameter and geologic anomaly degree with screening carries out reservoir division.
1. the total gas curve form obtained is tested and analyzed according to gas, and is aided with brill, standpipe pressure, outlet drilling well liquid stream
Amount and drilling fluid pot volume curve variation characteristic determine reservoir thickness；
2. corresponding standpipe pressure curve step is raised and lowered and the speed of leak-off velocity, with total gas curve abnormal show
The depth of stratum that layer plays corresponding to the half range point at peak is reservoir initial depth DEPTH1；
3. corresponding standpipe pressure curve step is raised and lowered and the speed of leak-off velocity, with single display reservoir total hydrocarbon
Curve abnormality shows that peak or continuous veiny show that the depth of stratum corresponding to the half range point that last peak at peak falls after rise is reservoir
Terminate depth DEPTH2；
4. abnormal show reservoir thickness △ DEPTH, which are the reservoir, terminates depth and the difference i.e. △ of the reservoir initial depth
DEPTH=DEPTH2-DEPTH1。
4) well logging engineering explains that evaluating substitutes into all kinds of interpretation and evaluation standards and draws integrated interpretation conclusion.
Whether enter gas-bearing reservoir evaluation rubric extremely according to gas detection and analysis parameter, and obtained according to direct measurement
Relevance parameter, the derived character parameter for calculating processing acquisition and interpretation and evaluation standard show that reservoir finally explains conclusion.
If thering is abnormal gas to survey display 1. boring and meeting reservoir, surveyed by gas and derive from parameter interpretation evaluation criterion, when gas surveys ratio
Parameter Lw is in 500~800, XCC1In 80~85, DC in 0.998~0.999, light hydrocarbon analysis parameter PAC1More than 10000, PATGGreatly
When 10000, the reservoir is that gas-bearing formation is hydrate layer；Ratio parameter Lw, which is surveyed, when gas is less than 500 or more than 800, XCC1Less than 80 or
It is less than 0.998 or more than 0.999, light hydrocarbon analysis parameter PA more than 85, DCC1Less than 10000, PATGDuring less than 10000, the reservoir
For the i.e. free gas-bearing formation of gas-bearing bed.
If evaluation criterion is explained 2. boring the reservoir met gas survey display without exception or not meeting gas survey characteristic parameter, into drilling well
Liquid parameter interpretation flow, determine stratum with the presence or absence of leakage, if there is leakage, analysis leakage by drilling fluids outlet flow, pond body product
Mistake degree, if leak-off velocity is in " leakage " soon, commented when the change of drilling fluid outlet temperature, density, electrical conductivity meets its explanation
Price card standard is that drilling fluid outlet density is in reduction state and numerical value is less than 1.060~1.045g/cm3, drilling fluid outlet conductance
Rate be in reduction state and numerical value 91~70mS/cm, drilling fluid outlet temperature be in reduction state and numerical value 15.5~
13.5 DEG C provide gas-bearing formation i.e. hydrate layer integrated interpretation conclusion.
3. if leakage degree is " oozing ", when the change of drilling fluid outlet temperature, density, electrical conductivity meets its interpretation and evaluation mark
Standard is that drilling fluid outlet density is in increasing state and numerical value is more than 1.060g/cm3, drilling fluid outlet conductivity values are more than
91mS/cm is in increasing state and numerical value then directly gives the storage more than 15.5 DEG C less than 70mS/cm, drilling fluid outlet temperature
Layer is the i.e. free gas-bearing formation integrated interpretation conclusion of gas-bearing bed.
If 4. not meeting interpretation and evaluation standard without drilling fluid leakage or drilling fluid outlet temperature, density, conductivity parameters, enter
Enter engineering parameter and explain flow：If the pressure of the drill, standpipe pressure parameter change, by its interpretation and evaluation standard, when the pressure of the drill is 30
When~114kN, standpipe pressure are more than 1.7MPa, the reservoir is that gas-bearing formation is hydrate layer；When the pressure of the drill is less than 30kN or is more than
When 114kN, standpipe pressure are less than 1.7MPa, the reservoir is the i.e. free gas-bearing formation of gas-bearing bed.
5. if the pressure of the drill, standpipe pressure parameter are unchanged or change does not meet its interpretation and evaluation standard, the stratum is non-gas
Body reservoir.
This method is that natural gas hydrate exploration is developed in compound logging, light hydrocarbon analysis special project mud logging techniques operation process,
Identification judges a kind of well logging engineering comprehensive explanation evaluating method of natural gas hydrate stratum.
In summary, present disclosure is not limited in the above embodiments, and the knowledgeable people in same area can
To propose other embodiments easily within the technological guidance's thought of the present invention, but this embodiment is included in the present invention's
Within the scope of.
Claims (9)
1. a kind of natural gas hydrate exploration develops well logging engineering comprehensive explanation evaluating method, it is characterised in that including following step
Suddenly：
(1) gather, handle, store, record and calculate in real time by gas detection analyzer, engineering logging instrument, light hydrocarbon analysis instrument,
Obtain every logging parameters；
(2) acquired all logging parameters are classified, screened, analysis determination can be used as gas hydrates well logging engineering
The data item of comprehensive interpretation and evaluation parameter；
(3) data integration determined using key parameter and geologic anomaly degree with screening carries out reservoir division；
(4) well logging engineering explains that evaluating substitutes into all kinds of interpretation and evaluation standards and draws integrated interpretation conclusion.
2. natural gas hydrate exploration exploitation well logging engineering comprehensive explanation evaluating method, its feature exist according to claim 1
In in the step (1), the reflection reservoir that gas detection analyzer obtains contains Natural Gas Hydrates or property containing natural gas
Parameter include total hydrocarbon TG contents and chromatographic component content, chromatographic component refers to methane C1, ethane C2, propane C3, iso-butane iC4、
Normal butane nC4, isopentane iC5, pentane nC5。
3. natural gas hydrate exploration exploitation well logging engineering comprehensive explanation evaluating method, its feature exist according to claim 1
In in the step (1), engineering logging instrument obtains reflection reservoir drillability and the engineering logging of thickness and drillng operation state ginseng
Number, including ROP, min/m during brill；The pressure of the drill WOB, kN；Weight on hook WOH, kN；Rotary speed RPM, r/min；Torque T ORQ,
kN.m；Pump punch speed SPM, stroke/min；Depth DEPTH, m.
4. well logging engineering comprehensive explanation evaluating method, its feature are developed according to the natural gas hydrate exploration of claim 1 or 3
It is, in the step (1), engineering logging instrument obtains the drilling liquid parameter of reflection reservoir fluid physical property and stratum permeability, bag
Include standpipe pressure SPP, MPa；Drilling fluids outlet flow MFO, %；Drilling fluid pot volume MV, m3；Drilling fluid outlet density MWO, g/
cm3；Drilling fluid outlet electrical conductivity MCO, mS/cm；Drilling fluid outlet temperature MTO, DEG C.
5. natural gas hydrate exploration exploitation well logging engineering comprehensive explanation evaluating method, its feature exist according to claim 1
In, in the step (1), ginseng of the reflection reservoir containing Natural Gas Hydrates or the property containing natural gas of light hydrocarbon analysis instrument acquisition
Number includes C1~C9Between normal hydrocarbon, isohydrocarbon, cycloalkane and aromatic hydrocarbon amount to 103 parameters.
6. natural gas hydrate exploration exploitation well logging engineering comprehensive explanation evaluating method, its feature exist according to claim 1
In, in the step (1), every logging parameters include calculating handle to obtain reflection reservoir properties, containing gas hydrates
The parameter of matter or the property containing natural gas includes leaking fast LS, m3/h；Weight is than Lw, C1/C2 +；C1Relative amount, C1/TG；Humidity ratio
WH；Equilibrium ratio BH；Aspect ratio CH；Aridity coefficient DC；Total hydrocarbon peak area PATG；C1Peak area PAC1。
7. natural gas hydrate exploration exploitation well logging engineering comprehensive explanation evaluating method, its feature exist according to claim 1
In, in the step (2), be divided into chromatography parameter, engineering parameter, drilling liquid parameter, the class of light hydrocarbon analysis parameter 4, sieve
Select and analyze determine chromatography parameter, light hydrocarbon analysis parameter, standpipe pressure, the pressure of the drill, depth, when boring, drilling fluids outlet flow,
Drilling fluid pot volume, leakage speed, weight ratio, C1Relative amount, aridity coefficient, total hydrocarbon peak area, C1Peak area, drilling fluid outlet electricity
Conductance, density, the data item that temperature is gas hydrates well logging engineering comprehensive interpretation and evaluation parameter.
8. natural gas hydrate exploration exploitation well logging engineering comprehensive explanation evaluating method, its feature exist according to claim 1
In, in the step (3), when the total gas curve form obtained is tested and analyzed according to gas, and being aided with brill, standpipe pressure, outlet
Mud flow rate and drilling fluid pot volume curve variation characteristic determine reservoir thickness, corresponding standpipe pressure curve step rise or
Reduce and the speed of leak-off velocity, using the depth of stratum corresponding to total gas curve abnormal show layer plays the half range point at peak as reservoir
Initial depth DEPTH1, corresponding standpipe pressure curve step is raised and lowered and the speed of leak-off velocity, is stored up with single display
Layer total gas curve abnormal show peak or continuous veiny show the depth of stratum corresponding to the half range point that last peak at peak falls after rise
Terminate depth DEPTH for reservoir2, its abnormal show reservoir thickness △ DEPTH are that the reservoir terminates depth and reservoir starting is deep
The difference of degree, i.e. △ DEPTH=DEPTH2-DEPTH1。
9. natural gas hydrate exploration exploitation well logging engineering comprehensive explanation evaluating method, its feature exist according to claim 1
In, in the step (4), whether enter gas-bearing reservoir evaluation rubric extremely according to gas detection and analysis parameter, and according to direct
Measure obtained relevance parameter, the derived character parameter that calculating processing obtains and interpretation and evaluation standard and show that reservoir is finally explained
Conclusion：
(1) there is abnormal gas to survey display if boring and meeting reservoir, surveyed by gas and derive from parameter interpretation evaluation criterion, when gas surveys ratio parameter
Lw is in 500~800, XCC1In 80~85, DC in 0.998~0.999, light hydrocarbon analysis parameter PAC1More than 10000, PATGIt is more than
When 10000, the reservoir is gas hydrates layer；Ratio parameter Lw, which is surveyed, when gas is less than 500 or more than 800, XCC1It is less than 80 or big
It is less than 0.998 or more than 0.999, light hydrocarbon analysis parameter PA in 85, DCC1Less than 10000, PATGDuring less than 10000, the reservoir is
Free gas-bearing formation；
(2) evaluation criterion is explained if boring the reservoir met gas survey display without exception or not meeting gas survey characteristic parameter, into drilling fluid
Parameter interpretation flow, determine stratum with the presence or absence of leakage, if there is leakage, analysis leakage by drilling fluids outlet flow, pond body product
Degree, if leak-off velocity is in " leakage " soon, when the change of drilling fluid outlet temperature, density, electrical conductivity meets its interpretation and evaluation
Standard is that drilling fluid outlet density is in reduction state and numerical value is less than 1.060~1.045g/cm3, drilling fluid outlet electrical conductivity
In the state of reduction and numerical value is in reduction state in 91~70mS/cm, drilling fluid outlet temperature and numerical value is 15.5~13.5
DEG C provide gas-bearing formation integrated interpretation conclusion；Then it is determined that it is gas hydrates layer to provide the reservoir while hydrate reservoir boundary
Integrated interpretation conclusion；
(3) if leakage degree is " oozing ", when the change of drilling fluid outlet temperature, density, electrical conductivity meets its interpretation and evaluation standard
I.e. drilling fluid outlet density is in increasing state and numerical value is more than 1.060g/cm3, drilling fluid outlet conductivity values are more than
91mS/cm is in increasing state and numerical value then directly gives the storage more than 15.5 DEG C less than 70mS/cm, drilling fluid outlet temperature
Layer is the integrated interpretation conclusion of free gas-bearing formation；
(4) if not meeting interpretation and evaluation standard without drilling fluid leakage or drilling fluid outlet temperature, density, conductivity parameters, enter
Engineering parameter explains flow：If the pressure of the drill, standpipe pressure parameter change, by its interpretation and evaluation standard, when the pressure of the drill 30~
When 114kN, standpipe pressure are more than 1.7MPa, the reservoir is gas hydrates layer；When the pressure of the drill be less than 30kN or more than 114kN,
When standpipe pressure is less than 1.7MPa, the reservoir is free gas-bearing formation；
(5) if the pressure of the drill, standpipe pressure parameter are unchanged or change does not meet its interpretation and evaluation standard, the stratum preserves to be non-
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710732783.6A CN107392505A (en) | 2017-08-24 | 2017-08-24 | Natural gas hydrate exploration develops well logging engineering comprehensive explanation evaluating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710732783.6A CN107392505A (en) | 2017-08-24 | 2017-08-24 | Natural gas hydrate exploration develops well logging engineering comprehensive explanation evaluating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107392505A true CN107392505A (en) | 2017-11-24 |
Family
ID=60345608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710732783.6A Pending CN107392505A (en) | 2017-08-24 | 2017-08-24 | Natural gas hydrate exploration develops well logging engineering comprehensive explanation evaluating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107392505A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108763751A (en) * | 2018-05-28 | 2018-11-06 | 中石化石油工程技术服务有限公司 | The bearing calibration of total hydrocarbon in gas logging data in a kind of petroleum geology well logging |
| CN109736792A (en) * | 2019-01-07 | 2019-05-10 | 中国石油集团川庆钻探工程有限公司 | Natural gas reservoir and automatic identification method of fluid-containing property thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588039A (en) * | 2004-09-20 | 2005-03-02 | 大庆油田有限责任公司 | Method for indicating natural gas exploration using drill well liquid tank top gas combining gas phase chromatography logging well |
| CN103670395A (en) * | 2013-12-17 | 2014-03-26 | 中国海洋石油总公司 | Fluid logging oil-gas-water interpretation method based on oil-gas-water index chart |
| CN105134190A (en) * | 2015-08-25 | 2015-12-09 | 中国海洋石油总公司 | Gas logging oil layer interpreting method based on oil layer quantitative recognition layout |
| CN205333579U (en) * | 2016-01-26 | 2016-06-22 | 上海欧申科技有限公司 | Water rock stratum analytic system |
| US20160178796A1 (en) * | 2014-12-19 | 2016-06-23 | Marc Lauren Abramowitz | Dynamic analysis of data for exploration, monitoring, and management of natural resources |
-
2017
- 2017-08-24 CN CN201710732783.6A patent/CN107392505A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588039A (en) * | 2004-09-20 | 2005-03-02 | 大庆油田有限责任公司 | Method for indicating natural gas exploration using drill well liquid tank top gas combining gas phase chromatography logging well |
| CN103670395A (en) * | 2013-12-17 | 2014-03-26 | 中国海洋石油总公司 | Fluid logging oil-gas-water interpretation method based on oil-gas-water index chart |
| US20160178796A1 (en) * | 2014-12-19 | 2016-06-23 | Marc Lauren Abramowitz | Dynamic analysis of data for exploration, monitoring, and management of natural resources |
| CN105134190A (en) * | 2015-08-25 | 2015-12-09 | 中国海洋石油总公司 | Gas logging oil layer interpreting method based on oil layer quantitative recognition layout |
| CN205333579U (en) * | 2016-01-26 | 2016-06-22 | 上海欧申科技有限公司 | Water rock stratum analytic system |
Non-Patent Citations (1)
| Title |
|---|
| 范文科 等: "青海木里三露天天然气水合物预判气测录井应用研究", 《现代地质》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108763751A (en) * | 2018-05-28 | 2018-11-06 | 中石化石油工程技术服务有限公司 | The bearing calibration of total hydrocarbon in gas logging data in a kind of petroleum geology well logging |
| CN109736792A (en) * | 2019-01-07 | 2019-05-10 | 中国石油集团川庆钻探工程有限公司 | Natural gas reservoir and automatic identification method of fluid-containing property thereof |
| CN109736792B (en) * | 2019-01-07 | 2022-09-06 | 中国石油集团川庆钻探工程有限公司 | Natural gas reservoir and automatic identification method of fluid-containing property thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108713089B (en) | Estimating formation properties based on borehole fluid and drilling logs | |
| CN110321595B (en) | Fault sealing evaluation method for extracting static quality coefficient by logging | |
| CN103670395B (en) | Fluid well logging oil-gas-water interpretation method based on oil gas aqua index plate | |
| Whittle et al. | Will wireline formation tests replace well tests? | |
| MX2009001365A (en) | Facilitating oilfield development with downhole fluid analysis. | |
| CN103806911A (en) | Method for distinguishing reservoir fluid type by using drilling fluid logging while drilling data | |
| US9243476B2 (en) | System and method for simulating oilfield operations | |
| WO2016126794A1 (en) | Estimating measures of formation flow capacity and phase mobility from pressure transient data under segregated oil and water flow conditions | |
| US11525822B2 (en) | Quantifying operational inefficiencies utilizing natural gasses and stable isotopes | |
| WO2013152204A1 (en) | Formation compositional evaluation using normalized differential data | |
| Kamal et al. | Pressure transient testing of methane producing coalbeds | |
| CN105930932A (en) | Gas index-based shale-gas-layer standardized open-flow capacity obtaining method | |
| Varela et al. | Successful dynamic closure test using controlled flow back in the Vaca Muerta formation | |
| CN107392505A (en) | Natural gas hydrate exploration develops well logging engineering comprehensive explanation evaluating method | |
| EP3274552B1 (en) | Formation pressure determination | |
| Honarpour et al. | Rock/fluid characterization and their integration—implications on reservoir management | |
| Chowdhury et al. | Production logging and its implementation: a technical review | |
| Jackson et al. | An integrated approach to interval pressure transient test analysis using analytical and numerical methods | |
| CN105604548B (en) | A kind of formation oil based on oil base drilling fluid sentences knowledge method | |
| CN109138986A (en) | Unit volume rock void fraction quantitative interpretation evaluation method | |
| Goldsmith* et al. | Gas isotope analysis: A cost effective method to improve understanding of vertical drainage in the Delaware Basin | |
| Andini et al. | Reservoir Characterization Using Pressure Derivative Method In Na-20 Well Senja Field | |
| Wright et al. | Advanced Analysis of Mud Gas Data Helped Identify Oil and Gas Zones in Wells with Minimum Logging Data | |
| Setiawan et al. | Enhancement of Vorwata field reservoir model by integration of pressure transient analysis with real-time downhole pressure data | |
| Zuber et al. | Coalbed-methane evaluation techniques-The current state of the art |
Legal Events
| 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |