Research on Intelligent Production Technology of Intermittent Gas Wells in Sulige Gas Field

2021 ◽  
Author(s):  
Yong Chen ◽  
Yonggang Xie ◽  
Wei Tian ◽  
Xiongxiong Wang ◽  
Zhengyan Zhao ◽  
...  
Keyword(s):  
Production Technology ◽  
Production Management ◽  
Gas Wells ◽  
Gas Field ◽  
Gas Well ◽  
Production Management System ◽  
Different Types ◽  
Intelligent Management ◽  
Intelligent Methods ◽  
Pressure Controlled

Abstract An intermittent gas well intelligent production technology is presented that use intelligent methods to determine and optimize the intermittent system of intermittent gas wells and use newly developed remote pressure-controlled well opening equipment that can simulate manual operations and corresponding intelligent control systems. This new approach is based on the research and application of intelligent technology in the production of intermittent gas wells. By establishing the models of gas flow in different types of gas wells, combined with the historical data of typical gas wells, the optimal pen and shut-in well time chart is finally formed. A series of remote pressure-controlled well opening equipment have been developed to replace manual pressure-controlled open well operations at the well site. Through intelligent integration of well site equipment and remote control platforms, an ntermittent gas well intelligent production management system is established. The quantitative determination of the intermittent system of different types of gas wells is realized. The effectiveness of gas well intermittent measures has increased from 72% to 90%. Electromagnetic remote-controlled open well equipment with adaptive decompression and full-open cylinder structure is developed, and can meet the requirements for rapid opening of type Il intermittent gas wells. Needle-valve type remote-controlled open well equipment embedded with intelligent well drilling algorithm is developed, and the fine well opening of class I and Il intermittent gas wells is realized. Hands-free operation is realized, and the workload of operating staff on the well site is reduced by more than 15%. On-site diagnosis of gas well production status, intelligent generation of systems, intelligent analysis and optimization are realized, and intermittent gas wells are transformed from manual management to intelligent management. An intermittent gas well intelligent production management system is established to achieve intelligent management of intermittent gas wells. Complete intermittent gas well intelligent production technology for low ermeability gas fields is described in detail to permit global similar gas field reference. The novelty of the technology lies in the use of intelligent methods to solve the production problems of intermittent gas wells, including reducing the labor intensity ofemployees, improving production efficiency, improving the fine management level of tight gas field gas wells, and reducing the impact of human activities on the natural environment.

scholarly journals Classification and Application of Tight Gas Wells Based on Cluster Analysis

2021 ◽  
Vol 2095 (1) ◽  
pp. 012099
Author(s):  
Zhenhua Cai ◽  
Chuanshuai Zuo ◽  
Jianying Zhu ◽  
Peng Qin ◽  
Baojiang Duan ◽  
...  
Keyword(s):  
Liquid Medium ◽  
High Energy ◽  
Low Energy ◽  
Production Performance ◽  
Tight Gas ◽  
Medium Energy ◽  
Gas Wells ◽  
Gas Field ◽  
Gas Well ◽  
Production Characteristics

Abstract The tight gas field is greatly affected by pressure in the development process. Due to the different production time and formation pressure of each well in the gas field, the production characteristics of the gas well are obviously different. After the gas well sees water, it is impossible to formulate production measures efficiently and accurately. Therefore, by analyzing the production performance characteristics of gas wells, this paper carries out the classification research of tight gas wells, and formulates the corresponding production measures according to the classification results. Taking gas well energy and liquid production intensity as the reference standard of gas well classification, the dynamic parameter indexes characterizing gas well energy and liquid production intensity are established. Gas wells with different production characteristics are divided into six categories by clustering algorithm: high energy-low liquid, high energy-high liquid, medium energy-low liquid, medium energy high-liquid, low energy-low liquid, low energy-high liquid. Then the classification method of tight gas well is formed. In this paper, 50 wells in Linxing block are selected as the research object. The research results show that most of the wells in Linxing block are located in area V, belonging to low energy and low liquid wells. It is recommended to implement intermittent production. The classification based on gas well energy and liquid production intensity are of guiding significance for the formulation of production measures in the Linxing block.

Study on Source Analysis of the Cation in Produced Water from Sulige Gas Field and Anti-Scaling Measures

2019 ◽  
Vol 814 ◽  
pp. 505-510
Author(s):  
Peng Chang ◽  
Rui Xue Shi ◽  
Li Wang ◽  
Wei Han ◽  
Cong Dan Ye ◽  
...  
Keyword(s):  
Produced Water ◽  
Xrd Analysis ◽  
Source Analysis ◽  
Scale Inhibitor ◽  
Gas Wells ◽  
Gas Field ◽  
Gas Well ◽  
Strontium Sulfate ◽  
Single Well ◽  
Main Component

A large amount of foreign matter appears in the Sulige gas well, causing blockage and corrosion of the pipeline, increasing the pressure difference in the wellbore and seriously affecting the normal production of the gas well. The gas wells with serious conditions mentioned above were selected to analyze the quality of single well produced water and the composition of blockage and core. Combined with the XRD analysis results of the cuttings, the long-term leaching experiments on the cuttings in different simulated solutions were carried out to study the sources of scaled ions in the gas wells. The experimental results showed that the extracted water from SD6-1 had high salinity and high content of scale ions Ca2+, Ba2+ and Sr2+;the main component of blockage is the acid insoluble strontium sulfate (barium) scale, and contains a small amount of corrosion products. The easily scalable Ca2+、Mg2+、Ba2+ and Sr2+ produced from the dissolution of the core in the formation water or working fluids, especially the acid erosion dissolves. According to the scaling mechanism, two kinds of Sr/Ba scale inhibitor were selected. The results showed that the barium II scale inhibitor performance is relatively good, and at the concentration of 40 mg/L, and the scale inhibition rate was more than 95%. The clogging of a single well can be reduced by adding a scale inhibitor.

Technology of water shut-off treatment in the gas well using coiled tubing

2021 ◽  
pp. 75-85
Author(s):  
D. S. Leontiev ◽  
I. I. Kleshchenko ◽  
A. D. Shalyapina ◽  
M. M. Mansurova
Keyword(s):  
Bottom Water ◽  
Urgent Problem ◽  
Gas Wells ◽  
Flexible Pipe ◽  
Gas Field ◽  
Gas Well ◽  
Coiled Tubing ◽  
Bottom Hole ◽  
Water Saturated ◽  
Gas Fields

In the modern practice of gas field operation, there is a problem associated with the inflow of bottom water to the bottom hole of the well. One of the ways to solve this urgent problem is the introduction of water isolation technologies in the development of gas fields and the use of special compositions and technological equipment for pumping liquids into the watered layers of gas wells. The article deals with the application of a set of special technological measures, such as installation of surface equipment for working in a gas well using coiled tubing, descent of a flexible pipe through a column of pump and compressor pipes with a packer, construction of an inflatable packer, as well as the use of a selective water-insulating composition of the well by pumping it through existing perforation channels in the casing string. Liquids based on ethyl silicate create a kind water shut-off screen between the gas- saturated and water-saturated parts of the gas well formation.

Optimization of Well Spacing for Tight Sandstone Gas Reservoirs - Case Study of Eastern Sulige Gas Field

2012 ◽  
Vol 616-618 ◽  
pp. 762-766
Author(s):  
Rui Lan Luo ◽  
Ji Wu Fan ◽  
Hong Mei Liao ◽  
Wen Xu
Keyword(s):  
Early Stage ◽  
Production Performance ◽  
Test Time ◽  
Production Data ◽  
Tight Gas ◽  
Gas Wells ◽  
Tight Sandstone ◽  
Gas Field ◽  
Gas Well ◽  
Well Spacing

Influenced by special geologic condition and stimulation, the production performance of tight fractured gas well is obviously different from that of conventional gas well. During deliverability testing, the hydraulic fractured gas well can never reach steady state with limited test time. It is difficult to calculate reserve and drainage area accurately at early development stage. Take eastern Sulige gas field for example, by correctly recognizing the percolation characteristics and production performance of hydraulically-fractured tight gas wells, and combined with core analysis, 116 hydraulically fractured tight gas wells in eastern Sulige gas field have been analyzed. A prediction chart of recoverable reserve for estern Sulige gas field is established. With this chart, the ultimately recoverable reserves, drainage sizes, drainage lengths and drainage widths of 116 hydraulically-fractured tight gas wells in eastern Sulige gas field are predicted based on early stage of production data, and finally a reasonable well spacing for this field is suggested. Only utilizing routine production data without employing additional resources, this method is a good predictive guide to launch a development plan of tight gas field.

LARGE-BORE GAS WELL DESIGN—APPLICATION TO OFFSHORE GAS FIELD DEVELOPMENT

2006 ◽  
Vol 46 (1) ◽  
pp. 79
Author(s):  
F. Thompson ◽  
I. Terziev ◽  
I. Taggart
Keyword(s):  
New Technologies ◽  
Capital Expenditure ◽  
Large Diameter ◽  
Gas Wells ◽  
Gas Field ◽  
Gas Well ◽  
North West ◽  
Field Development ◽  
The North ◽  
Trade Offs

Offshore gas development projects including the North West Shelf of Australia continue to develop new technologies in order to reduce development costs. Given that the number of development wells directly relates to capital expenditure, past attempts have focussed on obtaining higher gas rates out of conventional well designs by carefully managing erosional limits, which, in turn, tend to restrict the use of higher offtake rates.A strategy based on safely flowing gas wells at higher rates results in fewer wells and delays the phasing-in of additional wells, both of which result in economic enhancement. In recent times the industry has increasingly moved to large-bore gas well technology as a means of realising this strategy. Large-bore gas wells are defined as wells equipped with production tubing and flow control devices larger than 7” or 177 mm. Originally developed for land-based operations, this technology is increasingly moving offshore into totally subsea systems. One factor limiting the speed of adoption of this technology is the trade-off that exists between the increased offtake rates offered by large-bore systems and the risks posed by wear due to erosion in and around the wellhead area caused by any solids entrained in the gas stream.The problem becomes more acute when different-sized well designs employ the same wellhead configurations, because the upper wellhead area is usually the critical and limiting wear component.This paper summarises the recent developments in large-bore offshore applications and presents a consistent methodology showing how different gas well designs can be compared using hydraulic and erosional considerations. Additional trade-offs posed by reliable solids monitoring and the adoption of untested wellhead and intervention designs are discussed. In many cases, hybrid designs based on large diameter tubulars but with conventional wellheads may offer a useful balance between higher well rates and adoption of proven technology. The results shown here are directly applicable to alternative well designs presently under consideration for a number of offshore reservoir developments.

scholarly journals Prediction of critical liquid loading time for water-producing gas wells: Effect of liquid drop rotation

2021 ◽  
Author(s):  
Xiao Chongyang ◽  
Fu Heng ◽  
Cheng Leli ◽  
Pei Wenyu
Keyword(s):  
Liquid Drop ◽  
Early Stage ◽  
Gas Wells ◽  
Liquid Loading ◽  
Gas Reservoir ◽  
Gas Field ◽  
Gas Well ◽  
Production Stages ◽  
Field Workers ◽  
Drainage Effect

AbstractAfter more than 20 years of continuous development, part of the wells in the Moxilei-1 gas reservoir located at the Sichuan Basin have entered the middle–later production stage. With the continuous decline in formation pressure and production rates, some of the gas wells have entered the potential period of liquid loading, while some have already suffered water plugging. Currently, the field engineers usually carry out some corresponding drainage measures after the occurrence of liquid loading in the gas well, which will first affect the production progress of the gas field, then increase the difficulty in drainage and reduce the drainage effect afterward. On the basis of Pan’s model for evaluating critical liquid-carrying flow rate, the influence of liquid drop rotation was considered in the new model. Further, combined with the Arps production decline equation, a prediction model of liquid loading timing was deduced. Taking a typical well in the Moxilei-1 gas reservoir as an example, based on the early-stage production data of the gas well, the model was used to predict the liquid loading timing accurately. The model can predict the possibility and timing of liquid loading in gas wells at different production stages. It can check the gas wells with potential liquid loading, so as to reduce the workload for field workers. Furthermore, it can predict the potential liquid accumulation and its timing in advance, so as to guide the field workers to prepare for drainage in advance.

ON THE ANALYSIS AND EVALUATION OF THE FINANCIAL ACTIVITIES OF AN ENTERPRISE IN THE TOKTOGUL REGION OF KYRGYZSTAN IN ACCORDANCE WITH INTERNATIONAL STANDARDS

2020 ◽  
Vol 2 (10) ◽  
pp. 77-79
Author(s):  
M. U. USUPOV ◽  
Keyword(s):  
Management System ◽  
Production Management ◽  
Organizational Structures ◽  
International Standards ◽  
Analysis And Evaluation ◽  
Financial Condition ◽  
Economic Entity ◽  
Production Management System ◽  
Provision Of Services

The article discusses the issues of improving the management of the financial condition of the economic entity, which change due to variable conditions of formation in organizational structures at the levels of levels, the production management system, the provision of services and the distribution of the company's profit. Such a management system can significantly affect the performance of the firm and accelerate the transition to international standards.

Research on Workshop Management System of Body-in-White Pressing Production

2012 ◽  
Vol 468-471 ◽  
pp. 2661-2667
Author(s):  
Ya Zhou Chen ◽  
Lin Wang
Keyword(s):  
Production Scheduling ◽  
Management System ◽  
Production Management ◽  
Task Assignment ◽  
Production Management System ◽  
Dispatching Algorithm ◽  
Body In White ◽  
Dynamic Dispatching ◽  
A Company ◽  
Detailed Function

Based on the analyzing of the characteristics of a Body-In-White pressing production process a pressing workshop production management system has been given in order to make the ERP production scheduling more executable. The detailed function model of it such as task assignment, quality control, mold maintenance and production scheduling has been thoroughly discussed. In order to make the production line capability balance the task dispatching algorithm has been given and the dynamic dispatching and controlling process has been explained. This system can be integrated with the upper ERP/CAPP/PDM system which can improve the information level of a company.

Key Technology and Application of Workshop Production Management System

2011 ◽  
Vol 411 ◽  
pp. 370-373
Author(s):  
Ya Dong Fang ◽  
Fang Wang ◽  
Bo Sun
Keyword(s):  
Management System ◽  
Production Management ◽  
Dynamic Structure ◽  
New Production ◽  
Report Generation ◽  
Key Technology ◽  
Production Management System ◽  
Structure Tree ◽  
Jsp Technology ◽  
Generation Technology

Abstract. In order to resolve problem of production plane and dispatch problem in manufacturing plant, a new production management system is proposed, and the key technology and application of system is discussed. Generation technology of dynamic structure tree is firstly introduced. More ever, dynamic report generation technology is also discussed and based data, and information management is realized based on JSP technology. Lastly, typical interface of workshop production management system is described.

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