one. Establish and improve the importance of a comprehensive logging service system based on the HSE management system.
Personal health, safety and environmental protection are the common requirements of human beings. There are many risks and unsafe factors in logging construction. To reduce and eliminate risks and unsafe factors, to protect personal safety and ecological environment, it is important to establish HSE management system. Meaning:
(1) The existing management system is difficult to meet the requirements of modern enterprise management. The main reason is that although the original security and environmental protection systems have many systems, they have not formed a scientific, systematic and continuous improvement management system, which is healthy, safe and There is a big gap in environmental management compared with foreign countries, especially the thinking mode lags behind the advanced management ideas of foreign countries, and lacks the system management methods and scientific management modes required by modern enterprise health, safety and environmental management;
(2) The petroleum industry is a high-risk operation industry, and health, safety and the environment must be managed simultaneously and formed as a whole;
(3) The management of HSE is also the need for enterprises to be in line with the international market. We can know that the purpose of establishing an HSE management system is to:
(1) Meet the government's legal and regulatory requirements for health, safety and the environment;
(2) Providing guarantees for the general policy, the overall objectives, and the realization of specific targets in all aspects;
(3) Reduce accidents, ensure the health and safety of employees, and protect the property of the company from loss;
(4) Protect the environment and meet the requirements of sustainable development;
(5) Improve raw material and energy utilization, protect natural resources, and increase economic benefits;
(6) Reduce medical expenses, compensation, property damage costs, and reduce insurance costs;
(7) Meeting public expectations and maintaining good public and social relationships;
(8) Maintain the reputation of the company and enhance its market competitiveness.
two. The role of integrated logging systems in drilling engineering.
Drilling is a high-input, high-risk project. In the process of oil and gas exploitation, there is a large amount of ambiguity, randomness and uncertainty. Due to the influence of complex and varied geological conditions and the constraints of water injection and oil recovery processes, the drilling process encounters many complicated downhole conditions and “low, Deep, difficult, thick, small" oilfield geological characteristics. Through core logging, cuttings logging, drilling fluid logging, drilling logging, gas logging, fluorescence logging, after-effect logging, core drilling, special case data collection, geochemical logging Such as on-site logging technology and completion data interpretation and processing of microcomputer software technology, timely discovery of oil and gas layers, judgment and interpretation of oil and gas layers, and evaluation of single well oil and gas layers. The intuitive, first-class and real-time nature of logging technology for the identification of formation lithology and oil and gas layers cannot be replaced by any other method. The comprehensive logging is a high-tech product of multi-disciplinary and multi-technology integration. It provides a large amount of engineering information through the collected data, and analyzes and judges the working status of various types of equipment on the ground and underground in the drilling construction process. It is not only a powerful tool for judging formation lithology, discovering oil and gas layers, but also a weapon for preventing and preventing drilling engineering accidents. It includes drilling logging, cuttings logging, drilling fluid logging, and gas logging. The comprehensive logging technology under the HSE management system can scientifically guide drilling, timely forecast accident hazards, avoid accidents, increase drilling speed, shorten drilling cycle and reduce drilling costs. This is a big breakthrough in the pursuit of the best interests.
three. The application of comprehensive logging technology in the exploration and development of oil plants.
Comprehensive logging technology is widely used in drilling processes in oil and gas exploration activities. It not only has extensive application to parameter wells, scientific exploration wells, pre-exploration wells, and exploration wells in the exploration process of the new area, but also has a significant effect on the development of development wells and adjustment wells in the development of the old areas. details as follows:
(one). Use integrated logging to conduct formation evaluation.
Stratigraphic evaluation includes lithology determination, stratigraphic division, structural analysis, sedimentary environment analysis, lithofacies paleogeographic analysis, and regional comparison based on single well evaluation.
In the exploration process, a large amount of data collected by comprehensive logging can effectively carry out the drilling while formation evaluation. Comprehensive logging uses MWD, FEMWD (Lengthing Formation Evaluation Instrument), LWD obtained resistivity, natural gamma, neutron porosity, rock density and other data, with cuttings, core, well core, mud (page The data such as rock density and carbonate rock content can be used to establish single well stratigraphic section, lithologic section and single well sedimentary facies and lithofacies palaeogeographic analysis with reference to parameters such as drilling time and turntable torque. Up to 22 wells can be compared using the Multiwell software of the integrated logging computer system. The stratigraphic comparison of small areas is carried out while drilling, and regional structural sections are established. According to these, the analysis while drilling, the timely modification of the design, the forecasting target layer, the carding core level and the ancient buried mountain surface can be determined, and the drilling depth can be determined.
(two). Conduct oil and gas resources evaluation.
Oil and gas resource evaluation is one of the most important tasks in exploration activities. The evaluation of oil and gas resources is directly related to the exploration effect. Good resource evaluation is conducive to improving the success rate and efficiency of exploration, reducing the number of exploration wells, and helping to speed up the pace of exploration, thus having great economic and social benefits.
A variety of techniques and equipment for comprehensive logging can provide a complete set of means and methods from the discovery and interpretation of single well oil and gas layers to the analysis and evaluation of reservoirs, and the evaluation of oil resources in the oil reservoirs. Accurately evaluate oil and gas resources. From single well evaluation to regional evaluation, it can be quickly carried out and an evaluation report can be made in time for use by oil companies.
(1) Timely and accurate discovery of oil and gas layers;
(2) Oil and gas layer interpretation;
(3) Reservoir evaluation;
(4) Evaluation of the oil layer;
(5) Comprehensive evaluation of single well oil and gas resources.
(three). Monitor drilling construction.
As mentioned above, the comprehensive logging technology is a combination of drilling engineering and geological logging. Therefore, the application of comprehensive logging technology is also very extensive in drilling construction. There are:
(1) Real-time monitoring of drilling;
(2) Optimized parameter drilling to increase the rate of penetration and shorten the drilling time;
(3) Formation pressure monitoring;
(4) Using the logging while drilling technology to serve directional wells and horizontal wells.
(four). Use advanced computer technology for exploration services.
The rapid development of computer technology has added strong technical support to comprehensive logging technology and provided a wider range of services for oil and gas exploration. At present, the computer software used for comprehensive logging has Unix, Windows, Dos6.0, and other operating systems, Novell-ware network technology, Borland C++ language, and WITS data transmission format. The hardware uses SUB Space Station 2 (Halliburton SDL-9000L), SUN Space Station 5 (Inteq. Drillbyte), Compaq 486 (Geoservices ALS-2), Compaq 586 (petron MK-9) as the operating environment. The data terminal network is used to provide remote terminals for geologists, drilling engineers, drilling platform drillers, supervisors and operating company representatives, and is equipped with a rich library of applications. Different users can extract data from the central database for processing, analysis, and guidance of drilling construction, formation evaluation, and oil and gas resource evaluation according to their own needs. At the same time, various evaluation reports obtained will be transmitted back to the base using remote transmission equipment. At present, due to the change of service concept, from the original only for Party A's service results, it has developed to provide a software work platform for the operating company to facilitate the construction evaluation of oil companies and operations. For example, Geotop software developed by Geoservices of France and Drillbyte developed by Baker Huges inteq of the United States designed core, reservoir evaluation, reservoir description, well control, drilling aging analysis, formation pressure evaluation, and seismic and logging for Party A. Application, regional comparison and other software, Party A can use these software to carry out various research work. These programs have been welcomed by users. The National Petroleum Corporation of Thailand has also built the company's data management system with the drillbyte system, giving full play to the functions of integrated logging software.
four. Development status and trends of comprehensive logging technology abroad.
Under the strict HSE management system, the logging technology has developed by leaps and bounds. At present, the logging technology has three core technology series (one is the geological section to establish a logging series, the other is the oil and gas water identification and evaluation logging series, and the third is drilling. Engineering monitoring and reservoir protection logging series) and five auxiliary technologies (well measurement, drilling geological design, analysis while drilling and decision-making technology, single well evaluation and logging instrument development technology), but logging technology is still facing severe Challenges: challenges in complex geological conditions (such as concealed, special reservoirs), changes in drilling process technology and challenges in special process wells, and the challenges of fierce competition in the logging market after restructuring. Based on reality and looking to the future. Continuously improve six kinds of capabilities (drilling geological design capability, well location measurement capability, on-site logging capability, on-site analysis and decision-making capability, single well comprehensive geological evaluation capability, logging instrument manufacturing capability), gradually forming a complete technical series and improving exploration The service level of development is the general direction of the development of logging technology. Based on the HSE management system, the development trend of modern logging technology can be summarized into the following four aspects:
(1) Establish a modern logging technology system;
(2) Quantification and informationization of logging data;
(3) Diversification and serialization of logging methods;
(4) The technical indicators of logging equipment are highly refined.
Fives. Safety logging based on HSE system
HSE supervision and inspection, system audit and management review are the three-level monitoring mechanism for the effective operation of the HSE management system. In the actual operation, we should start from the following key links:
(1) Ideological attention
Executives at all levels should attach great importance to the construction of the HSE system, because the linearized administrative staff is the main body of the HSE system. It has been widely believed that improving HSE awareness should comprehensively strengthen the training of all employees, but in fact it should be more important to improve the system.
(2) Accident management
It is generally believed that after the accident, the investigation team will be established to punish the person responsible for the accident. However, due to the nature of the company's activities and the system, management level, technology, staff quality, resource allocation ability and other factors, coupled with the understanding of hidden dangers must also follow the objective laws of tortuous development, accidents in production is not incomprehensible, Nor is it unacceptable. The purpose of accident management is not to punish the responsible person, but to clarify the reasons, learn lessons, and avoid similar accidents from happening again. This concept solves the problem of reporting accidents in overseas projects, qualitatively identifying accidents, deliberately downgrading accidents, and shirking responsibility for accidents. The accident investigation report is a valuable asset of the company and should be shared by all.
(3) Effective control during construction
Strengthen the professional construction of emergency rescue teams for dangerous chemicals. For example, a group company has optimized and integrated 23 full-time fire brigades, streamlined the fire management system, and fully utilized the advantages of intensive management; strengthened the long-distance oil and gas pipeline maintenance emergency In the construction of the center, 13 peacekeeping repair centers and 28 maintenance teams have been set up in the six regions of Northeast China, North China, Northwest China, Southwest China, Central China and East China, forming a relatively complete pipeline emergency repair emergency rescue system; strengthening the blowout out of control emergency rescue base And the construction of emergency fire-fighting equipment, the group company will build Sichuan oil and gas well fire-fighting company into a comprehensive blowout out-of-control emergency rescue base integrating rescue, operation test and training drills, and has achieved effective results.
Only by strengthening the supervision, inspection and audit of the HSE management system and establishing an effective management model can the problems arising from the logging work be minimized.
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