Hydraulic System Simulation of Heavy Horizontal Directional Drilling Head

According to the features of heavy horizontal directional drill hydraulic system, power head hydraulic system which is the main working mechanism of the 280t horizontal directional drilling is modeled and simulated base on Amesim. On that basis, we adjust working characteristics of this model and make the point of view that feedback control parameters which is the hydraulic system of heavy drill should be adjusted according to the soil conditions. So that it can enhance the utilization rate of the machine power and drilling efficiency in different operating modes.

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A Method for Horizontal Directional Drilling in Difficult Soil Conditions

ICPTT 2013 ◽

10.1061/9780784413142.046 ◽

2013 ◽

Author(s):

Jiang Lu ◽

Weifeng Su ◽

Jiachang Liu

Keyword(s):

Soil Conditions ◽

Directional Drilling ◽

Horizontal Directional Drilling

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Вибір складу, параметрів робочого процесу і режиму роботи силової установки літального апарата з надзвуковою крейсерською швидкістю польоту

Aerospace technic and technology ◽

10.32620/aktt.2021.3.04 ◽

2021 ◽

pp. 32-41

Author(s):

Михайло Анатолійович Шевченко

Keyword(s):

Fuel Consumption ◽

Process Parameters ◽

Point Of View ◽

Relative Mass ◽

Control Parameters ◽

Operating Modes ◽

Operating Process ◽

Aircraft Motion ◽

Flight Profile ◽

Empirical Coefficients

The issues of choosing a composition, operating process parameters and operating modes of propulsion for supersonic cruising aircraft providing transoceanic flights are considered. A condition of maximum payload relative mass is used as a criterion for choosing the composition of the propulsion. This criterion can be transformed using the aircraft mass balance equation into a condition of the minimum relative mass of fuel and propulsion. A predictor-corrector method is used to solve the task. Choosing the composition, operating process parameters and operating modes of propulsion according to the cruising segment, taking into account the remaining flight segments takeoff, climb and descent by the empirical coefficients, is used as a predictor stage. Based on the solving results of this stage, the best competing variants of propulsions are selected for the purpose of subsequent more detailed analysis at a corrector stage by numerically solving the differential equations of the aircraft motion along an entire flight profile. At the same time, on each elementary section of the path, the control parameters of the propulsion are optimized according to the criterion of the minimum required fuel consumption to overcome this section. Propulsion with turbojet engine, turbofan and mixed flows turbofan engine, turbo-ramjet engine and turbofan engines that have ramjet modes are considered. Patterns of the change in the relative mass of the fuel and propulsion for the indicated compositions of the propulsions according to cruising segment of the flight for the cruising speeds corresponding to the M = 1.5...4 are established. These dependencies make it possible to select variants of propulsion competing in terms of payload for a cruising speed or select the most advantageous cruising speed for propulsion composition which is given. These dependencies were used to determine competing variants of the power plant, providing a minimum of the relative mass of fuel and propulsion for the airplane with a cruising speed corresponding to the M = 3. At the stage of the corrector, these variants of the propulsion were evaluated according to the criterion of the relative mass of fuel and propulsion by solving the equations of the aircraft motion along the entire flight profile with the optimization of the control parameters of the propulsion on each elementary segment of the profile according to the criterion of minimum fuel consumption to overcome it. In doing so, the operating process parameters of the propulsion were optimized near of those values that were obtained at the stage of the predictor. The analysis of the obtained results indicates that, in comparison with the predictor stage at the corrector stage, the parameters of the propulsion operating process that are optimal from the point of view of the relative mass of fuel and propulsion changed by about 12.5 %, and the relative mass of fuel and propulsion by about 3...4 %.

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Modeling of Annular Pressures in Horizontal Directional Drilling

2004 International Pipeline Conference, Volumes 1, 2, and 3 ◽

10.1115/ipc2004-0696 ◽

2004 ◽

Author(s):

Samuel T. Ariaratnam ◽

Richard Stauber ◽

Bruce Harbin

Keyword(s):

Hydraulic Fracturing ◽

Drilling Fluid ◽

Pressure Effects ◽

Soil Conditions ◽

Drilling Fluids ◽

Fluid Composition ◽

Directional Drilling ◽

Limited Information ◽

Horizontal Directional Drilling ◽

Wide Range

Horizontal Directional Drilling (HDD) is an established trenchless construction method for the installation of underground utilities and pipelines. Subsequently, the method is becoming widely accepted as a cost-effective alternative to traditional open-cut construction. However, the occurrence of hydraulic fracturing, resulting in the migration of drilling fluid to the surface has placed the HDD process under scrutiny, especially when being considered for environmentally sensitive projects. Hydraulic fracturing results from an excess buildup of fluidic pressure within the borehole. Models have been developed to predict borehole pressures; however, there is limited information available on the relationship between drilling returns and fluid composition to these pressures. A research program was undertaken to model and determine flow characteristics for drilling returns under a variety of soil conditions and bore penetration rates. Nine soil samples were gathered based on the Unified Soil Classification System (USCS) and their respective rheological properties were obtained for different drilling fluids and target slurry densities. This paper presents, as an example, a comparison and analysis of the predicted borehole pressures of clayey-sand (SC) soil in a large directional drill rig application and provides recommendations for contractors when attempting installations in various geological formations. The pressure effects of pipe eccentricity within a borehole were analyzed using a computer model. The result of this research is a simplified approach for predicting downhole fluid pressures for a wide range of project parameters that can be used as a guide to minimize the occurrence of hydraulic fracturing.

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Międzyodrze: an example of diverse economic and nature-related activities in the part of the Lower Odra Valley

Journal of Water and Land Development ◽

10.1515/jwld-2017-0045 ◽

2017 ◽

Vol 34 (1) ◽

pp. 117-129 ◽

Cited By ~ 2

Author(s):

Szczepan L. Dąbkowski ◽

Piotr Wesołowski ◽

Adam Brysiewicz ◽

Maciej Humiczewski

Keyword(s):

Organic Matter ◽

Hydraulic System ◽

Point Of View ◽

Soil Conditions ◽

The Past ◽

Odra River ◽

Economic Analyses ◽

Present Role ◽

Selection Of

Abstract Międzyodrze is an area in Lower Odra Valley, from the fork of the riverbed to Szczecin, with the islands between the Odra River and Lake Dąbie. In the past, it has served primarily as a waterway route and now serves a variety of economic and nature-related functions. This paper presents the historical and present role of Międzyodrze, taking into account the specific natural values of the Lower Odra Valley, hydrography, hydrology and soil conditions. In the area of Międzyodrze, there are basically three types of organic matter and the nature’s point of view, the area is rich in flora and fauna. The current stimulation to activity of Międzyodrze is to take account of the needs of the natural environment, tourism and recreation, while improving the hydrological and retention potential of the area. Exceptional natural values, complicated hydraulic system of canals, the complexity of hydrological phenomena and the specificity of soils make the selection of activities aimed at achieving the objectives of area revitalization requires comprehensive environmental and hydrological analyses as well as economic analyses. The paper outlined the range of difficulties encountered by this assessment.

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Mechanical Model for Determining the Crossover Point of Slurry Flow in Pull-Back of Horizontal Directional Drilling Installations

ICPTT 2009 ◽

10.1061/41073(361)107 ◽

2009 ◽

Author(s):

Liangxue Cai ◽

Limin He

Keyword(s):

Mechanical Model ◽

Directional Drilling ◽

Horizontal Directional Drilling ◽

Slurry Flow ◽

Crossover Point

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EMERGENCY RESPONSE IN THE PIPELINE CONSTRUCTION BY HORIZONTAL DIRECTIONAL DRILLING

Oil and Gas Studies ◽

10.31660/0445-0108-2015-2-91-96 ◽

2015 ◽

pp. 91-96

Author(s):

I. E. Kiryanov ◽

Yu. D. Zemenkov ◽

S. M. Dorofeev ◽

V. S. Toropov

Keyword(s):

Emergency Response ◽

Directional Drilling ◽

Horizontal Directional Drilling ◽

Pipeline Construction ◽

Trenchless Construction

On the basis of analyzing the characteristics of used materials and the parameters of trenchless transitions profiles was developed emergency response, including several schemes of release a pipe jammed in the hole during the pipeline pulling in the pipeline construction by horizontal directional drilling. Proposed schemes applicability analyzed for trenchless construction real conditions.

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Evaluation of Hydraulic Fracturing Models and Their Limitations to Predict No-Drill Zones for Horizontal Directional Drilling

Volume 2: Pipeline Safety Management Systems; Project Management, Design, Construction, and Environmental Issues; Strain Based Design; Risk and Reliability; Northern Offshore and Production Pipelines ◽

10.1115/ipc2018-78304 ◽

2018 ◽

Author(s):

Saeed Delara ◽

Kendra MacKay

Keyword(s):

Hydraulic Fracturing ◽

Safety Factor ◽

Standard Procedure ◽

Accurate Determination ◽

Strength Properties ◽

Analytical Models ◽

Alternative Methods ◽

Directional Drilling ◽

Horizontal Directional Drilling ◽

The Impact

Horizontal directional drilling (HDD) has become the preferred method for trenchless pipeline installations. Drilling pressures must be limited and a “no-drill zone” determined to avoid exceeding the strength of surrounding soil and rock. The currently accepted industry method of calculating hydraulic fracturing limiting pressure with application of an arbitrary safety factor contains several assumptions that are often not applicable to specific ground conditions. There is also no standard procedure for safety factor determination, resulting in detrimental impacts on drilling operations. This paper provides an analysis of the standard methods and proposes two alternative analytical models to more accurately determine the hydraulic fracture point and acceptable drilling pressure. These alternative methods provide greater understanding of the interaction between the drilling pressures and the surrounding ground strength properties. This allows for more accurate determination of horizontal directional drilling limitations. A comparison is presented to determine the differences in characteristics and assumptions for each model. The impact of specific soil properties and factors is investigated by means of a sensitivity analysis to determine the most critical soil information for each model.

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Development of a rapid field testing method for metals in horizontal directional drilling residuals with XRF sensor

Scientific Reports ◽

10.1038/s41598-021-83584-4 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Hailin Zhang ◽

João Antonangelo ◽

Chad Penn

Keyword(s):

Moisture Content ◽

Standard Method ◽

Field Testing ◽

Field Method ◽

Filter Press ◽

Directional Drilling ◽

Horizontal Directional Drilling ◽

Excess Water ◽

Spiked Soil

AbstractPortable X-ray fluorescence (pXRF) spectrometer allows fast in-situ elemental determination without wet digestion for soils or geological materials, but the use of XRF on wet materials is not well documented. Our objective was to develop a rapid field method using pXRF to measure metals in the residues from horizontal directional drilling (HDD) operations so that proper disposal decisions can be made in-situ. To establish the procedure, we spiked soil samples with 4 concentrations of Cr, Ni, Cu, Zn, As, Cd, and Pb up to 1000 mg kg−1, and then the metal concentrations were determined by wet chemical method after drying and acid digestion (standard method), and by pXRF, also at laboratory conditions, after drying and at two different moisture conditions. The measurements by pXRF and standard method after drying and after removal of excess water (AREW) were highly correlated with slopes ranging from 0.83 ± 0.01 to 1.08 ± 0.01 (P < 0.001) for all metals. The relationship was better AREW than the saturated paste without removal of excess water and the moisture content affected only the accuracy of As, Cd, and Pb. The procedure established was successfully used for HDD residues collected from 26 states of US with moisture content ranging from 14 to 83% AREW. The pXRF was proven to be a reliable tool for fast detection of common metals in dried soils and HDD residues, and samples containing < 30% moisture content without needing to correct for moisture. If the moisture is > 30%, excess water in samples need to be removed with a commercially available filter press to achieve high accuracy. The developed procedures reduce time of metal detection from days to about an hour which allows drilling operators to make quick decisions on soil or HDD disposal.

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