Lithologic Reservoirs

Shangjia region is outside of Sanzhao source area, and K1q2 reservoir is below K1qn1 source rocks. The migration mechanism of oil from K1qn1 to Shangjia region is analyzed. Oil in Sanzhao source area firstly migrated downward into Fuyang reservoir through T2 faults under the action of overpressure, and then migrated to Shangjia region through sand bodies connected by faults under the action of buoyancy, finally directlymigrated and accumulated in high fault block traps of K1qn2 which were in contact with Fuyang reservoir. The oil accumulation and distribution of K1q2 in Shangjia region are mainly controlled by three factors: high fault block traps developed in K1q2， high fault block traps located in the pathway of oil migration and sand bodies developed in high fault block traps. Based on the analysis of main controlling factors, it is considered that typeⅠfavorable areas of oil accumulation of K1q2 in Shangjia area mainly distribute in the areas controlled by Shang 9-6, Shang 118-120 and Shang 124-112 wells and around Sheng 26-14 well， and type Ⅱfavorable areas mainly distribute in the northern region along Shang 9-6 and Shang 118-120 wells.

Downward migration of oil and gas can not occur

LI Chuanliang

2009, Vol.21(1): 6–10 Abstract ( 665 ) PDF (411 KB) ( 483 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.002

The downward migration of oil and gas is studied. Oil and gas migrate upward or upward laterally due to buoyancy of water. The downward migration of oil and gas can not occur forever. This wrong understanding comes from the concept of undercompaction of rock. Undercompaction is a wrong concept, which is resulted from the misunderstanding of rock deformation. It is wrong using equivalent depth method to calculate the pore pressure. Faults are not the path of downward migration of oil and gas. Without the driving force, the downward migration of oil and gas take place impossibly.

Characteristics and forming mechanism of buried hill reservoir of Lower Paleozoic in Zhuangxi-Chengdao area

WANG Yongshi

2009, Vol.21(1): 11–14 Abstract ( 470 ) PDF (729 KB) ( 533 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.003

The characteristics of buried hill reservoir in Zhuangxi-Chengdao area are studied, and the reservoir space types are analyzed. It is pointed out that the reservoir space is composed of karst reservoir and pore reservoir. Karstification is the main forming mechanism of the carbonate karst reservoir near the unconformity, and the depth influenced by atmogenic freshwater is about 150 munder the Caledonian unconformity. Dolomitization is the important forming mechanism of buried hill reservoir. The reservoirs of Yeli-Liangjiashan Formation are mainly concerned with dolomitization during the buried processing, especially concerned with the volume contraction of grains.

Reef and shoal facies reservoir prediction of Changxing Formation in eastern Sichuan and northern Chongqing

ZHOU Gang，ZHENG Rongcai，WANG Jiong，LI Yu，WEN Qibing，XU Fabo

2009, Vol.21(1): 15–21 Abstract ( 545 ) PDF (1173 KB) ( 831 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.004

There are four sedimentary facies developed in Changxing Formation in eastern Sichuan and northern Chongqing, including intraplatform trough （deep water basin）, platform slope, platform margin reef flat and open platform. Reef and shoal facies reservoir located in Kaijiang-Liangping intraplatform trough is the most important layers for oil and gas exploration. Crystal dolomite is the main lithology of reef and shoal facies reservoir, with wide area of distribution, great thickness and good physical property. Based on the analyses of sedimentary facies, logging facies and seismic facies, the geological model of the reef and shoal facies reservoir is established through the known rock- electricity transform pattern and logging response and the analysis of seismic reflection characteristics and geology property of reef and shoal. The obvious chimney effect on reef and shoal reservoir is defined. Based on the geological model established as the seismic inversion constraint, combined with regional geological information, the favorable zones of reef and shoal reservoir and dolomite distribution are predicted.

Study on the main diagenesis of Ma 5₁submember in northeastern Jingbian Gas Field

LI Shilin，LEI Bianjun，ZHANG Wenji，LI Gao，LIU Bin，WANG Xiaorong

2009, Vol.21(1): 22–26 Abstract ( 508 ) PDF (808 KB) ( 468 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.005

The OrdovicianMa 51 reservoir in northeastern Jingbian Gas Field in Ordos Basin is at the top ofweathering crust. The diagenesis is complex because of weathering and denudation in about 130 Ma. Based on the analysis of core and thin slice, it is concluded that the forming of Ma 51 dolomite reservoir is dominated by hypergene karstification, burial dissolution and mineral filling. The favorable diagenesis zones of Ma 51 reservoir are mainly in the midst-central south and west of the study area.

Diagenesis and diagenetic facies of reservoir rocks of Majiagou Formation in southern Jingbian tableland, Ordos Basin

ZHANG Min，WANG Zhengyun，WANG Liyun，ZHANG Ziguang，XU Bowen

2009, Vol.21(1): 27–33 Abstract ( 410 ) PDF (879 KB) ( 574 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.006

Majiagou Formation is an important Ordovician gas-bearing formation in Ordos Basin. The diagenesis types and the petrogenetic conditions of carbonate rocks of Majiagou Formation in southern Jingbian tableland are studied. The result shows that dolomitisation, ancient karstification and cemented metasomatism are dominated factors for the reservoir. According to various diagenesis characteristics and paragenetic sequence relations, it is concluded that this set of carbonate rocks mainly experienced four diagenetic stages: penecontemporaneous diagenetic stage, epidiagenetic stage, early diagenetic stage and anadiagenetic stage, and at present, it reached the later period of anadiagenetic stage. Based on the research of the diagenesis and combinatory sequence, the diagenetic facies is studied, and it is roughly divided into three diagenetic facies, including hypergene ancient karst-early filling cementation diagenetic facies, hypergene ancient karst-buried ancient karst diagenetic facies and buried cementation diagenetic facies. Hypergene ancient karst-buried ancient karst diagenetic facies has the best reservoir quality. Based on the studies on the influencing factors, the plane distribution of the diagenetic facies is definited, which provides foundations for reservoir evaluation and prediction.

Diagenesis and pore evolution of the first member of Shahejie Formation in Qikou Sag

GUO Changmin，SHI Zhensheng

2009, Vol.21(1): 34–39 Abstract ( 555 ) PDF (688 KB) ( 630 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.007

Compaction, cementation, denudation and replacement are the main diagenesis types in the first member of Shahejie Formation in Qikou Sag. Denudation takes a significant part of improving the reservoir property when above 2 200 m. There are two secondary porosity zones developed in the vertical direction, with the depth respectively ranging from 2 700 m to 3 200 m and from 3 500 m to 4 200 m, and the peak value of porosity is at 3 150 m and 3 650 m respectively. Based on the data of vitrinite reflectance, ratio of clay mineral mixed layer and palaeogeothermal, the diagenetic stages of the first member of Shahejie Formation in Qikou Sag can be divided into 4 stages: early diagenesis A stage, early diagenesis B stage, middle diagenesis A1 substage and middle diagenesis A2 substage, and nowit is mainly in the middle diagenesis A1 substage tomiddle diagenesis A2 substage.

Vertical distribution characteristics of reservoir and sedimentary system of Silurian in Tahe area

TAO Bie，FU Heng

2009, Vol.21(1): 40–45 Abstract ( 493 ) PDF (1012 KB) ( 583 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.008

Based on the data of outcrop, thin section, seismic data, logging and previous research results, the structural setting in Tahe area is analyzed. The result shows that Tahe area was affected by tectonic movements such as late Caledonian, early Hercynian, late Hercynian and early Yanshan movement. The Silurian, which is absent in most areas of Tahe area, appears in southwestern Tahe area and was only reserved in Lower Silurian Kepingtage Fomation and Tata’ai’ertage Formation, developing tidal flat and continental shelf here. Based on the sedimentary system types, the characteristics of the favorable reservoir of Silurian in Tahe area are analyzed. It is considered that the vertical distribution of reservoir is controlled by tectonic movement and eustatic sea level change. The vertical distribution of reservoir is predicted. The favorable reservoirs converge in lower and upper Kepingtage Fomation and Tata’ai’ertage Formation.

Forming conditions of Chang 6 reservoir in Anding area of Zichang Oilfield

DING Chao，GUO Lan，YAN Jifu

2009, Vol.21(1): 46–50 Abstract ( 505 ) PDF (737 KB) ( 532 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.009

The forming conditions of Chang 6 reservoir in Anding area of Zichang Oilfield are studied. Chang 6 reservoir is typical low and ultra-low permeability reservoir, with single source-reservoir-seal assemblage. Lacustrine source rocks provided resource for the oil and gas generation, and flood plain facies and paludal facies mudstone supplied cap rock for the reservoir accumulation. The results show that Chang 6 reservoir is typical lithologic reservoir, and the hydrocarbon enrichment is dominated by reservoir properties, lithologies and lithofacies. Both the sedimentary facies zones and reservoir properties control the hydrocarbon distribution of Chang 6 reservoir.

Origin of high-quality reservoir in fault basin: An example from PaleogeneShahejie reservoir in Liaohe Depression

SUN Hongbin，ZHANG Fenglian

2009, Vol.21(1): 51–54 Abstract ( 426 ) PDF (372 KB) ( 867 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.010

Liaohe Depression is a Paleogene oil-bearing basin, which overlaps Mesozoic basin. Paleogene Shahejie Formation mainly formed during the faulted period. The formed clastic reservoir has high porosity and permeability, which was mainly resulted from the original sedimentation and later diagenesis. The study result shows that the main factors for the forming of the Paleogene high-quality reservoir in Liaohe Depression include: coarse particles of clastic reservoir, little content of matrix and cement, secondary pore developed well, lack of land sources and syndepositional carbonate, oil migrated into the reservoir early and the reservoir buried shallowly. It is believed that the deep reservoir of Paleogene Shahejie Formation in Liaohe Depression has great oil and gas exploration potential.

Accumulation condition and model of turbidite fan reservoir in eastern Dongying Sag

XIA Jingsheng，WANG Zhikun，CHEN Gang，ZHU Xin，ZHANG Yihang，JI Xiaojing

2009, Vol.21(1): 55–60 Abstract ( 594 ) PDF (567 KB) ( 624 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.011

Lithologic reservoir exploration has become one important oil-gas exploration target in Dongying Sag. Source rocks developed well in the third and fourth members of Shahejie Formation in eastern Dongying Sag, which supplied sufficient hydrocarbon resources for lithologic traps. The exploration practice indicates that this area developed delta front slump turbidite fan and deep-water turbidite fan, as well as transportation systemand favorable mudstone seal. The source-reservoir-cap assembled well in space and time, which provides favorable conditions for the forming of sand lens lithologic reservoirs and structural-lithologic reservoirs.

Feixianguan Formation in western Sichuan

YE Zhaoyang，QIN Qirong，LONG Shengxiang，CHEN Chunfang，LI Yongtao

2009, Vol.21(1): 61–65 Abstract ( 459 ) PDF (766 KB) ( 758 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.012

The marine carbonate reservoir of Triassic Feixianguan Formation in western Sichuan is mainly composed of sparry oolitic limestone, bioclastic limestone and sparry oolitic dolomite. It was formed by the later multi-stage diagenesis and tectonism, with dissolved pores, caves and fractures developed well. The lithologies, reservoir space,types and accumulation capability of the carbonate reservoir are analyzed by means of geologic survey and laboratory analysis. There are various types of reservoir space, and the pore structure is complex. The reservoir can be divided intofour types, and the oolite reservoir of the third member of Feixianguan Formation has the best quality. The reservoir quality and distribution are mainly controlled by sedimentary facies, denudation and tectonism. The quantitative evaluation and prediction for the distribution of the high-quality reservoir are carried out by using multi-factor analysis method. The result shows that the favorable zones distribute in the oolitie reservoir of the third member of Feixianguan Formation along anxiian Chaping, Nanmuyuan, Zhitonggong and Hanwang in western Sichuan.

Reservoir characteristics of Jinji Formation of Lower Jurassic in central Guangdong

LIU Kai，XU Guoqiang，ZHANG Li，LI Xiaogang，YI Hai，ZUO Yinhui

2009, Vol.21(1): 66–71 Abstract ( 483 ) PDF (583 KB) ( 584 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.013

Based on the field survey and sample testing for the outcrops of Mesozoic, in combination with the results of previous studies, the studies on petrology, pore structure and physical properties of Jinji Formation in central Guangdong are carried out. The result shows that the reservoir rocks are mainly composed of grey-white coarse-fine quartz sandstone and conglomerate-bearing sandstone; the reservoir space comprises cavity, fractures and intergranular porosity; the physical property is generally characterized bymoderate-lowporosity and lowpermeability, high displacement pressure, small pore throat radius, general sorting, mainly fine skewness and slightly coarse skewness，thus, the pore structures are poor. According to the parameters of physical properties of the reservoir and pore structure，the sandstone reservoirs of Jinji Formation are divided into three types, and the type Ⅲ and type Ⅳare the dominant ones.

Application of geological model inversion technique to prediction of subtle reservoir

HAN Liguo

2009, Vol.21(1): 72–74 Abstract ( 495 ) PDF (336 KB) ( 503 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.014

The conventional impedance inversion method is difficult to solve the problems in the exploration and development of lithologic reservoirs. Geological model inversion technique is to establish the geological model by using drilling data, geological information and parameters, and then carry out the constrained inversion. The related geological data obtained such as density, resistivity and velocity could be used to predict favorable exploration areas. The geological model inversion technique has been successfully applied to the exploration in Baijiahai area of Junggar Basin, and the drilling result proves the prediction accuracy of the geological model.

Diagenesis of Chang 6 reservoir of Yanchang Formationin Baibao-Pingzhuang area

ZHANG Luqi，CHEN Gongyang

2009, Vol.21(1): 75–82 Abstract ( 434 ) PDF (336 KB) ( 492 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.015

Chang 6 reservoir ofUpper Triassic is the major oil producing zone in Baibao-Pingzhuang area, Ordos Basin. It is also typical low porosity and low permeability reservoir, with fine grain size, low compositional maturity, poor psephicity and good sorting. Based one these lithologic characteristics, the tests combining with the analysis of cast slice, SEM, X-clay minerals diffraction and property are applied to analyze the diagenesis of Chang 6 sandstone reservoirs. It shows that the diageneses mainly include compaction, pressure solution, cementation, packing action and dissolution. The first four actions are destructive diageneses, and the last one is constructive diagenesis. According to the evolutionary sequences of the diagenesis pattern, it is concluded that the diagenetic evolution of Chang 6 sandstone has already been in earlier stage of the middle diagenetic stage B. Based on the combination mode of the diagenetic evolution pattern, the evolutionary diagenetic pattern is studied. By emphasizing the process of the diagenetic evolution, the diagenetic facies is researched detailedly, and it is divided into seven types.

Discovery of tempestite in Middle Triassic Tianjingshan Formation in western Sichuan and its paleogeographic significance

PENG Jingsong，LIU Shugen，ZHAO Xiafei，WU Xichun，YANG Rongjun，SUN Wei， GU Yanwu

2009, Vol.21(1): 83–88 Abstract ( 463 ) PDF (1089 KB) ( 600 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.016

Tempestites have been found for the first time in the Middle Triassic Tianjingshan Formation in western Sichuan. The tempestites contain many typical sedimentary structures originated from storm activities, such as scourinfill structure, graded bedding, massive bedding, hummocky cross stratification, sunken cross stratification and flat rudites. The tempestites have 6 types of sedimentary sequences, among them, typeⅠand typeⅡ are distal tempestite, while type Ⅲ, Ⅳ, Ⅴand Ⅵ are proximal tempestite. The wide distribution and differences in regional distribution of tempestites indicate that the sedimentary environment of the western margin of Yangtze Block during Ladinian stage might be a ramp of low latitudes where the storm activities were frequent. The tempestite of Tianjingshan Formation is a newkind of reservoir in Sichuan Basin.

Sandstone reservoir characteristics of Taiyuan Formation in northeastern Ordos Basin

FENG Wenli，HUANG Si-jing，HUANG Peipei，ZOUMingliang，WU Meng

2009, Vol.21(1): 89–93 Abstract ( 509 ) PDF (625 KB) ( 453 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.017

Based on analysis of cores, cast thin section, scanning electron microscope, mineral and physical properties, the sandstone reservoir characteristics and its influencing factors of Taiyuan Formation in northeastern Ordos Basin are studied. The lithology of the reservoir in the study area is mainly sublitharenite, with high compositional maturity, middle-high textural maturity and poor properties. It is lowporosity and lowpermeability reservoir. The reservoir space is dominated by secondary pore. The rarely developed diagenetic microfractures made little contribution to improving the reservoir permeability. The reservoir quality is controlled by sedimentary facies and diagenesis. Sedimentological analysis shows that tidal channel is the favorable sedimentary microfacies of reservoir. Reservoir pore evolution is dominated by compaction, cementation and denudation. The decrease of sandstone porosity is mainly caused by compaction. Siliceous cementation and authigenic illite further reduced the porosity and permeability. Carbonate cementation continued to late diagenetic A stage. The cementation in the early stage enhanced the preservation of primary pores, and the cementation in the late stage damaged secondary pore.

Application of geological model inversion technique to prediction of subtle reservoir

WEN Gangfeng，WANG Zhi，HAN Jun，GU Bin

2009, Vol.21(1): 94–98 Abstract ( 535 ) PDF (581 KB) ( 700 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.018

Numerical simulation of seismic wave field of carbonate reef and bank reservoir

XIAO Ying，HE Zhenhua，HUANG Deji

2009, Vol.21(1): 99–101 Abstract ( 489 ) PDF (1158 KB) ( 582 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.019

The wave field continuation is executed in frequency and wave-number domain through split-step Fourier algorithm. The numerical simulation of seismic wave field corresponding to complex carbonate reef and bank reservoir is carried out. The results of forward seismic record and migration image are reasonable. The seismic response characteristics are concluded. It proves that the algorithm is quite efficient, accurate and steady, and it is not restricted on layer dip angle and horizontal and vertical changes ofmedium velocity. It is a relatively available seismic wave field numerical simulation algorithm.

Application of integrated well logs to sedimentary microfacies analysis of the third and fourth members of Quantou Formation in northern Songliao Basin

HUMingyi，LIU Xianqing

2009, Vol.21(1): 102–106 Abstract ( 528 ) PDF (662 KB) ( 724 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.020

On the basis of the previous studies, the sedimentary microfacies of the third and fourth members of Lower Cretaceous Quantou Formation in northern Songliao Basin are studied by using integrated well logs. It is favorable to improve the utilization of well logs and ascertain the distribution of single sand, and it provides basis for rational exploration of oil and gas field.

Application of Hilbert-Huang transform in extracting reservoir properties of array acoustic signals

LI Xiaochun，WANG Zhuwen，YUE Chongwang，CHEN Botao，DING Yang

2009, Vol.21(1): 107–111 Abstract ( 458 ) PDF (587 KB) ( 441 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.021

Array acoustic logging data is a non-linear and non-stationary signal. The traditional analysis methods include Fourier transform, wavelet analysis and Winger-Ville transform. Hilbert-Huang transform （HHT） is a new method developed for non-linear and non-stationary signal. The key step of this method is to apply the empirical mode decomposition （EMD） on signal, decomposing the signal into several intrinsic mode functions （IMF）, and then Hilbert energy spectrum of the signal can be obtained. The authors applied HHT to array acoustic logging signal processing, and used EMD to decompose the signal to get Hilbert energy spectrum. The relations between Hilbert energy spectrum and reservoir properties are analyzed. The result shows that there are some certain relations between Hilbert energy spectrum and reservoir properties.

Application of Epos 3.0 seismic interpretation system to volcanic reservoir exploration in Chepaizi area of Junggar Basin

XU Duonian，JIANG Chunling，PAN Jianguo，TAN Kaijun，CHEN Yongbo，YAO Qingzhou，WANG Yanjun

2009, Vol.21(1): 112–115 Abstract ( 566 ) PDF (683 KB) ( 550 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.022

The volcanic reservoir has become one important type of oil-gas exploration and development in the northwestern margin of Junggar Basin. The identification of volcanic massif is the key of Carboniferous oil-gas exploration in Chepaizi area. The drilling data and lithologic interpretation in the study area are applied to carry out the fine calibration of 3D seismic data, and three volcanic eruption sequences are identified. Epos 3.0 seismic interpretation system is used to carry out the fine interpretation, high resolution coherence technique is applied to perform the fault assemblage, multi-attribute seismic facies map is applied to ascertain the plane distribution of volcanic phase, and anomalous body carving technology is used to determine the spatial distribution of volcanic massif. 12 volcanic massif traps are finally discovered. The application of Epos 3.0 seismic interpretation systemin this area achieves good geologic effects.

Study on late water flooding in Qikou 18-1 Field

LIU Ruiguo，WANGWeimin，SU Jinchang

2009, Vol.21(1): 116–119 Abstract ( 481 ) PDF (346 KB) ( 612 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.023

With insufficient edge water energy, Qikou 18-1 Field has produced for 7.5 years. The reservoir pressure decreased from 30.5 MPa to 14.8 MPa, far lower than the crude oil saturation pressure of 28.9 MPa. The precipitous decline of reservoir pressure leads to oil-gas-water three-phase flow and reduce the relative permeability of crude oil, which makes the crude production decreased. Based on the laboratory test, material balance method and numerical reservoir simulation are used to carry out the study. The result shows that reservoir pressure can build up to a certain extent with a rightful injection-production ratio in the initial water injection.

Fine stratigraphic correlation method and its application in complicated fault-block oilfield

KONG Xiangyu，YU Jichong，LI Shufeng

2009, Vol.21(1): 120–124 Abstract ( 434 ) PDF (649 KB) ( 522 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.024

Aimed at a series of difficulties about stratigraphic correlation in complicated fault-block field, a method of stratigraphic classification and correlation is proposed, which puts the stresses on the using of the data from outcrop, seismic horizon, logging and dynamic performance. This method utilizes the advantages fromlogging data in the vertical direction and seismic data in the horizontal direction to carry out the recognition and correlation of sand. Good effects have been achieved in the application of this method for the fine stratigraphic classification and correlation in PYAY Field in Burma and new cognitions about fault distribution are obtained. A technical model of fine stratigraphic correlation for the similar complicated fault-block oilfield is established.

Study on the starting pressure phenomenon in ultra-low permeability reservoir： An example from Houshi area

LI Shanpeng，WU Kai，FANG Yanbing

2009, Vol.21(1): 125–127 Abstract ( 517 ) PDF (202 KB) ( 423 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.025

The Triassic Yanchang Formation is an important reservoir in Changqing Oilfield, with obvious starting pressure phenomenon. After the discussion on the cause, it is believed that the phenomenon was resulted from multi- factors. The analysis testing is carried out in Houshi area, and the result shows that the Triassic Yanchang Formation in Houshi area has obvious starting pressure, with a starting pressure gradient of 0.327MPa/m.

Stereoscopic exploration new progress of natural gas in Sichuan Basin

WU Yuexian，ZHONG Shuiqing，PAN Yongping，LI Hongxing，MI Qing，LIU Hong，LI Zaoyuan

2009, Vol.21(1): 128–132 Abstract ( 455 ) PDF (293 KB) ( 615 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.026

The stereoscopic exploration should be enhanced for the full development of natural gas field, and the reservoir of the gas field should be systematically analyzed.Many gas producing strata and layers are discovered through the stereoscopic exploration in Sichuan Basin, which makes the resources increase.We need to look for new succeeding strata and recognize the stereoscopic exploration for the further exploration in Sichuan Basin. The experience of stereoscopic exploration indicates that we should improve the geological cognition, choose new techniques to meet the exploration requirement and grasp the basic exploration principles.

Humanistic essence for petroleum exploration

ZHANG Xia

2009, Vol.21(1): 133–137 Abstract ( 408 ) PDF (481 KB) ( 292 )

doi: https://doi.org/10.3969/j.issn.1673-8926.2009.01.027

Humanistic essence plays a basic role in improving the creativity of petroleum exploration. The humanistic characters for creativity include the passion for petroleum exploration, fearless decision and firm belief, ability of independent thinking, as well as modest and prudent work spirit. The forming of these characters needs us to strengthen the humanistic cultivation, and to improve the ideological level and hierarchy of motivation.