CNPC Picks out Key Techniques for Development in 2002

CNPC will focus on a number of key technologies relating to the company 's development and economic performance in 2002, including 12 technical projectsat the State level and other 59 projects identified by CNPC itself. The oil giant will concentrate the efforts on the exploration and development technologies, such as "preliminary exploration study and target evaluation in major oil and gas exploration fields," "systematic techniques for improvement of water flooding and tertiary oil recover…     

PetroChina Licensed for Nation＇s Offshore Oil Fields Development

With the approval by the State Council - the Chinese Government, the Ministry of State and Resources formally authorized PetroChina, China‘s largest oil and gas producer, with the rights for oil and gas exploration and development in South China Sea on July 6. Opening of offshore deep-sea area is a benchmark event for PetroChina because the oil giant was earlier authorized only for onshore oil and gas operation and the shallow sea area with a water depth of no more than five meters. Based on China‘s standards, the oil and gas fields with the water depth exceeding five meters are defined as offshore oil and gas fields.     

Shengli Fruitful in Tapping International Market

Shengli Oilfield of Sinopec is one of the giant stateowned enterprises in China. On May 28,2000, its main units for oil and gas exploration and development were     

PetroChina‘s Natural Gas Development Strategy for Tenth Five-Year Plan

(See the last issue of COG) 　　Prediction of reserves and production in fourmajor gas regions 　　The four major gas regions such as Tarim, Changqing, Sichuan-Chongqing and Qinghai constitute the main natural gas production structure of PetroChina.They are the focus areas for PetroChina to realize its natural gas strategic target.It is of great significance to PetroChina to strengthen the efforts for exploration and development in those four regions and control the speed of exploration and development.……     

Focusing on China＇s Natural Gas Industrial Development——Adjust economic development speed, optimize industrial structure, reduce total coal demand, and energetically develop renewable energy ——Interview with Deputy Director of China Investment Association and Director General of Energy Development Research Center Jiang Zhaozu

Jiang Zhaozu： The platform of the 11^th Five-Year Plan calls for acceleration of oil and natural gas development, increase of investment for oil and natural gas exploration, and equal emphasis on oil and natural gas while keeping oil production stable and natural gas production rising. In my view, natural gas should be regarded as clean and high-quality energy. Yet it currently accounts for only about 3.5 percent, a low percentage in the primary energy consumption. We should therefore strengthen the efforts for exploration and development of the resources and strive to make a significant breakthrough in natural gas production.     

Xinjiang Keeps Strong Momentum for Oil Exploration and Development

Xinjiang Oilfield Company, as the main exploration area for PetroChina,has been remarkable for its oil and gas exploration results in the recent years.This year, the Oilfield Company focused on the hinterland area of Junggar basin for exploration while striving to make breakthroughs in the southern periphery and step up exploration of the northwestern periphery and eastern area of the basin so that exploration efforts were in full play in the whole basin.……     

Subtle Reservoirs： the Future Main Targets of Oil ＆ Gas Exploration

In recent years, along with the arriving of the middle and late stage of global continental rifted basin exploration, large numbers of oil ＆ gas reservoirs around the world have entered into the stage of subtle reservoir exploration. The exploration of subtle reservoirs has emerged as the frontiers of research for the petroleum geologists in the world in the 21^st Century.     

Exploration Top on Agenda of PetroChina

PetroChina held a 12-day meeting for 2003 exploration work in Beijing in mid-March. More than 300 geologists and experts as well as managers in charge of exploration work, coming from all the oil fields and research institutes of PetroChina, attended the meeting to formulate the company‘s oil and gas     

Present Situation and Exploration Potentialities of Natural Gas Resources in Ordos Basin

Ordos Basin is the second largest sedimentary basin in China, with an area of 370 thousand km^2. Since the first onshore oil well was drilled successfully in northern Shaanxi of China, there has been a century of oil and gas exploration in the basin, and it may be said that the oil exploration has a long history, but for natural gas exploration, it still may be regarded as a new area, because large-scale research, exploration, and development of natural gas in the basin have relatively lagged. The four big gas fields of Jingbian, Sulige, Yulin, and Uxin Banner with respective reserves of more than one hundred giga cubic meters were discovered since 1990s.[第一段]     

Status Quo of China＇s Petroleum Exploration and Its Prospect

The oil shortages in China have been becoming more serious in the recent years, which set higher pressure on petroleum exploration in China. In order to increase oil and gas supply and safeguard national energy security, it is critical for China to strengthen oil and gas exploration for more and more oil and gas discoveries. Based on summing up the outcomes of petroleum exploration achieved in the 10th Five-Year Plan period （2001-2005）, the paper analyzes the main issues facing China＇s petroleum exploration currently and in the future. What＇ s more, it probes into the trends of petroleum exploration in the future and predicts the growth of oil and gas reserves. The strategic trend of petroleum exploration is to ＂be based on exploration for large basins, look for new exploration areas, maintain the development of eastern China, accelerate the exploration of western China, speed up offshore exploration.＂[第一段]     

Formation and distribution characteristics of Proterozoic–Lower Paleozoic marine giant oil and gas fields worldwide

There are rich oil and gas resources in marine carbonate strata worldwide.Although most of the oil and gas reserves discovered so far are mainly distributed in Mesozoic,Cenozoic,and upper Paleozoic strata,oil and gas exploration in the Proterozoic–Lower Paleozoic(PLP)strata—the oldest marine strata—has been very limited.To more clearly understand the oil and gas formation conditions and distributions in the PLP marine carbonate strata,we analyzed and characterized the petroleum geological conditions,oil and gas reservoir types,and their distributions in thirteen giant oil and gas fields worldwide.This study reveals the main factors controlling their formation and distribution.Our analyses show that the source rocks for these giant oil and gas fields are mainly shale with a great abundance of type I–II organic matter and a high thermal evolution extent.The reservoirs are mainly gas reservoirs,and the reservoir rocks are dominated by dolomite.The reservoir types are mainly karst and reef–shoal bodies with well-developed dissolved pores and cavities,intercrystalline pores,and fractures.These reservoirs arehighly heterogeneous.The burial depth of the reservoirs is highly variable and somewhat negatively correlated to the porosity.The cap rocks are mainly thick evaporites and shales,with the thickness of the cap rocks positively correlated to the oil and gas reserves.The development of high-quality evaporite cap rock is highly favorable for oil and gas preservation.We identified four hydrocarbon generation models,and that the major source rocks have undergone a long period of burial and thermal evolution and are characterized by early and long periods of hydrocarbon generation.These giant oil and gas fields have diverse types of reservoirs and are mainly distributed in paleo-uplifts,slope zones,and platform margin reef-shoal bodies.The main factors that control their formation and distribution were identified,enabling the prediction of new favorable areas for oil and gas exploration.     

IN BRIEF

Important breakthrough made in oil/gas exploration in southern margin of Junggar Basin The southern edge of Junggar Basin in Xinjiang has been as a hard area of oil/gas exploration for PetroChina Xinjiang Oilfield Company, but An 5 well as an exploratory well in this area obtained high yield oil/gas flow in July. An 5 well situates in Shawan County is a key pioneer disposed on Anjihai Anticline at the southern edge of Junggar Basin by PetroChina Xinjiang Oilfield Company. The well sta…     

Global Oil and Gas Exploration and Development Expenditure in 2003 Rises 4.8 Percent as Compared to Previous Year

A recent survey by Friedman Billings Ramsey (FBR) shows that the oil and gas companies worldwide plan to increase the fund for exploration and development to US$136 billion in 2003, 4.8 percent up from the previous year. The second half of 2003 will see even a higher increase in the fund. In 2002, the exploration and development expenditure of the surveyed oil and gas companies rose 3.6 percent as compared to 2001.     

ABSTRACT

Abstract： In the past 10 years, through innovative ideas, theoretical innovation and technological innovation, important discoveries and breakthroughs have been made continuously in oil and gas exploration in Jilin exploration area. Seven 100-million-tonnage oil-rich regions and two 100-billion-tonnage gas succeeding fields have been so far discovered. Steady growth of large-scale reserves has been realized for eight consecutive years. The laws of oil and gas geology and discovery in the area are summarized. And exploration potential for oil in mid-shallow layers and for gas in deep layers in southern Songliao Basin, for oil and gas in Yitong Basin, and in Yalujiang basins are analyzed. The exploration tendency in Jilin exploration area in the next 10 years is proposed. The growth of large-scale oil and gas reserves during the 12th and 13th FiveYear Plan periods will further boost the steady and rapid development of Jilin Oilfield.     

Prospect of Sinopec''s Exploration for Natural Gas

Current state of Sinopec’s exploration for natural gasDistribution of exploration area and resource baseSinopec now owns the exploration right of 364 blocks, with the acreage about one million square kilometers. The company mainly carries out exploration for oil and gas     

Xinjiang Sees Fresh Exploration and Development Results

Gas exploration and production in TarimThere is a promising trend for natural gas exploration in Tarim Oil Field with natural gas in place accumulated to 558 billion cubic meters, said Sun Delong, president of PetroChina Tarim Oil Field Company, in a recent interview with media. With the efforts to accelerate exploration of a number of new gas fields, Tarim Oil Field in China's Northwest Xinjiang Autonomous Region can secure a stable 12-billion-cubic-meter gas supply for the West-East gas transmission pipeline for 30 years, he added.     

Brief Introduction

No.1 Geophysical Exploration Company of Daqing Drilling ＆ Exploration Engineering Branch of CNPC（No.1 DGEC） was established in 1981. The predecessor of No.1 DGEC was the Geological Survey Department of Songliao Petroleum Exploration Bureau of Daqing Oilfield established in 1960. It has worked in geophysical exploration for 48 years. It is the only specialized company in Daqing Oilfield which explores for petroleum and natural gas geologic reserves as well as other resources associated with oil and gas.     

CNPC Sets 2002 Targets for Main Businesses

CNPC President Ma Fucai outlined the main taski of the country's oil giant at the CNPC 2002 Work Conference that was held in late January. Ma said that CNPC would focus on petroleum exploration to increase the high-quality recoverable reserves, adding that the efforts would be strengthened for assessment of the key strategic exploration regions, such as Ordos basin, Junggar basin, Tarim Basin and Songliao basin. Meanwhile, CNPC will also concentrate itself on the progressive explorat…     

A Study of Thin Sandstone Reservoirs by High-resolution Seismic Inversion

In recent years, with the development of the oil/gas exploration technology and with the intensive exploration of the known oil-gas bearing basins in the world, there are fewer and fewer easily explored structural oil/gas reservoirs, while more and more subtle oil/gas pools are found in the recently discovered oil/gas reservoirs. The thin sandstone reservoirs are not easily found in the initial phase of exploration, since they are affected by such factors as structural environment, stratigraphi…     

New Exploration Blocks In China＇s Offshore Areas Open to Foreign Firms

CNOOC is offering 10 new exploration blocks offshoreChina to international oil and gas companies for PSC(Production Sharing Contract) exploration and 2 new areasfor contracts or agreements, according to the statementannounced by the offshore oil giant on June 6, 2003. Allinterested companies can make their inquiries with CNOOC‘s