A New Production-Splitting Method for the Multi-Well-Monitor System

In order to reduce the cost of wellheads, the production rate of the gas wells in the Hechuan Gas Field are mostly measured in groups, which raises a stringent barrier for industries to determine the production rate of each single well. The technique for determining the production of a single well from the production of the well-group can be called the production splitting method (PSM). In this work, we proposed a novel PSM for the multi-well-monitor system (MWMS) on the basis of the Beggs and Brill (BB) correlation. This proposed method can account for the multi-phase flow together with the features of the pipelines. Specifically, we discretize the pipeline into small segments and recognize the flow pattern in each segment. The pressure drop along the pipeline is calculated with the Beggs and Brill correlation, and the production of each well is subsequently determined with a trial method. We also applied this proposed method to a field case, and the calculated results show that the results from this work undergo an excellent agreement with the field data.

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Effect of Fluid Type and Multi-Phase Flow on Sand Production in Oil and Gas Wells

10.2118/187117-ms ◽

2017 ◽

Cited By ~ 1

Author(s):

Haotian Wang ◽

Deepen P. Gala ◽

Mukul M. Sharma

Keyword(s):

Oil And Gas ◽

Phase Flow ◽

Fluid Type ◽

Sand Production ◽

Gas Wells ◽

Oil And Gas Wells ◽

Multi Phase Flow ◽

Multi Phase

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A proposed NMR solution for multi-phase flow fluid detection

Petroleum Science ◽

10.1007/s12182-019-00367-3 ◽

2019 ◽

Vol 16 (5) ◽

pp. 1148-1158 ◽

Cited By ~ 3

Author(s):

Jun-Feng Shi ◽

Feng Deng ◽

Li-Zhi Xiao ◽

Hua-Bing Liu ◽

Feng-Qin Ma ◽

...

Keyword(s):

Oil And Gas ◽

Structure Design ◽

Quantitative Detection ◽

Straight Tube ◽

Phase Flow ◽

Gas Wells ◽

Antenna Structure ◽

Oil And Gas Wells ◽

Multi Phase Flow ◽

Multi Phase

Abstract In the petroleum industry, detection of multi-phase fluid flow is very important in both surface and down-hole measurements. Accurate measurement of high rate of water or gas multi-phase flow has always been an academic and industrial focus. NMR is an efficient and accurate technique for the detection of fluids; it is widely used in the determination of fluid compositions and properties. This paper is aimed to quantitatively detect multi-phase flow in oil and gas wells and pipelines and to propose an innovative method for online nuclear magnetic resonance (NMR) detection. The online NMR data acquisition, processing and interpretation methods are proposed to fill the blank of traditional methods. A full-bore straight tube design without pressure drop, a Halbach magnet structure design with zero magnetic leakage outside the probe, a separate antenna structure design without flowing effects on NMR measurement and automatic control technology will achieve unattended operation. Through the innovation of this work, the application of NMR for the real-time and quantitative detection of multi-phase flow in oil and gas wells and pipelines can be implemented.

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Research Progress in Calculation Methods for Single-Well Dynamic Reserves of Gas Reservoirs

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1044-1045.401 ◽

2014 ◽

Vol 1044-1045 ◽

pp. 401-405

Author(s):

Hai Dong Shi

Keyword(s):

High Efficiency ◽

Research Progress ◽

Calculation Methods ◽

Gas Wells ◽

Gas Reservoirs ◽

Gas Field ◽

Well Spacing ◽

Well Pattern ◽

Single Well ◽

Gas Fields

Dynamic reserves are the important basis for determining the reasonable deliverability of gas wells and well spacing density and also the foundation for the overall development plan of a gas field. Therefore, the evaluation of dynamic reserves of gas wells is crucially important to developing gas fields with high efficiency, optimizing well pattern and shortening development period. For this reason, this paper arranges and analyzes systematically a series of calculation methods for dynamic reserves of single gas well, which have arisen in recent years, and identifies the calculation methods for different types of gas reservoirs.

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

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.814.505 ◽

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.

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Single well control area splitting method based on reservoir sphysical properties and gas well productivity differences

E3S Web of Conferences ◽

10.1051/e3sconf/202123601010 ◽

2021 ◽

Vol 236 ◽

pp. 01010

Author(s):

Wang Chunpu

Keyword(s):

Oil Recovery ◽

Splitting Method ◽

Physical Property ◽

Large Error ◽

Control Area ◽

Gas Reservoir ◽

Gas Field ◽

Well Productivity ◽

Well Control ◽

Single Well

The determination of the control area of a single well is the prerequisite for the evaluation of the reserves of a single well. The current calculation methods of the control area of a single well are mainly divided into: experience formula, area balancing method, and the physical model, in order to solve the different limitations of the existing single-well control area splitting method and the problem of large error in use, this paper puts forward a kind of based on gas reservoir physical property and the growth of single well productivity difference algorithm for single well control area is split, according to the results of the split combining static reservoir parameters, using volumetric method for single well and the calculation of reserves of gas reservoir evaluation, further clarify the original and the remaining gas distribution of gas reservoir, for the subsequent reasonable development of the gas reservoir and enhance oil recovery. In this paper, block S of Sulige gas field is taken as an example, and the geological reserve of block is calculated as 354.75×108m3, compared with the basic proven reserves of Block S, 364.84×108m3, the error is 2.61% and the reliability is strong

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A Fuzzy Method to Quantitatively Evaluate the Effect of Foam Deliquification in Gas Wells

10.2118/207249-ms ◽

2021 ◽

Author(s):

Min Jia ◽

Jianjun Zhang ◽

Xiuling Han ◽

Junfeng Shi ◽

Donghong Guo ◽

...

Keyword(s):

Production Rate ◽

Evaluation Method ◽

Comprehensive Evaluation ◽

Gas Production ◽

Rate Of Change ◽

Daily Injection ◽

Gas Wells ◽

Gas Field ◽

Foaming Agents ◽

Factors Affecting

Abstract Deliquification is the primary technique for stabilizing gas production and improving gas recovery in gas fields producing water, and foam deliquification is the key subject of research for the purpose of enhancing gas production and cutting down cost. However, there is no systematic method to evaluate and compare the effects of foam deliquification in gas wells in various conditions. Aiming at the above problem, a new fuzzy quantitative evaluation method for foam deliquification is proposed. The method focus on four indicators, namely, rate of change in daily gas production, rate of change in daily water production, rate of change in the difference between tubing and casing pressures, and rate of change in daily injection cost. The evaluation results are calculated by the linear analysis, hierarchy analysis and fuzzy relation synthesis operator. The method has been applied to 30 foam deliquification wells in Sulige gas field and Chongqing gas field, and the comprehensive index of foam deliquification effect is calculated. The advantage of this method is that the technical and economic factors affecting foam deliquifiction, the membership relationships of various indicators, as well as the weight coefficients of the indicators are integratedly considered. It can be used for comprehensive evaluation and quantitative comparison of foam deliquification effects in gas wells in various conditions, assisting in determining candidate wells for foam deliquification, and guiding the selection of foaming agents.

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Optimization of Oil Production by Gas Lift Macaroni in “X” Field

Journal of Earth Energy Science, Engineering, and Technology ◽

10.25105/jeeset.v1i1.3034 ◽

2018 ◽

Vol 1 (1) ◽

Author(s):

Chrismon Chrismon ◽

R.S. Trijana Kartoatmodjo ◽

Dwi Atty Mardiana

Keyword(s):

Data Collection ◽

Cost Saving ◽

Production Rate ◽

Oil Production ◽

Oil Reservoir ◽

Gas Wells ◽

The Cost ◽

Manual Calculation ◽

Gas Lift ◽

Data Surface

The background of this research was that in X Field many gas wells have stopped flowing years ago and not economical production anymore. Therefore the company has decided to use gas lift which is proper to the sandy oil reservoir characteristic. The tubing of the well has no gas lift mandrel completion as the well was a gas producer. The objectives of this research was that to design gas lift macaroni (GLM) to optimize oil production rate. The design of this research was that the new slim tubing 1.315 inch, called as macaroni tubing, was installed inside the existing 3. 5inch tubing. The gas lift valves are installed inside macaroni tubing. The data collection consists of reservoir data, surface data, and well diagram.The result of this research was that the gas lift macaroni installation can generate oil production rate of 425 STB/day of the three wells. Gas lift valves of well A is four valves, well B is five valves, and well C is three valves. The deviation of software and manual calculation of valves depth is less than 1%. The cost saving by installing gas lift macaroni instead of workover operation to change the existing tubing with new tubing equipped with gas lift valves is USD 5,620,955 of three wells.

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