Shale Gas Liquefaction

Shale gas resources are widely distributed in low-permeability, tight formations. The extraction process is characterized by high pressure, high water content, and high impurity levels. Due to scattered distribution, production fluctuations, and lack of infrastructure, resource development efficiency is low, leading to gas venting and non-compliant emissions, which hinder the clean and efficient transformation of shale gas.

With the accelerated development of unconventional natural gas, shale gas liquefaction has become a key pathway to enhance resource commercialization and storage and transportation flexibility. There is an urgent need for modular, standardized, and rapidly deployable technical equipment and systematic solutions.

Solution Approach

KAITIANGAS, addressing the complex composition, frequent fluctuations, and dispersed distribution of shale gas, has developed a mobile shale gas liquefaction solution suitable for wellsite conditions. This solution offers comprehensive services covering resource assessment, technical pathway demonstration, process design, skid-mounted equipment manufacturing, EPC execution, and system commissioning. It assists clients in efficiently achieving integrated processing of shale gas recovery, impurity removal, and liquefaction, supporting various scenarios such as regional natural gas peak shaving, storage and transportation, and distributed energy supply.

Comprehensive Solution

Analysis of resource scale and production cycle, evaluation of shale gas liquefaction pathways, economic assessment of single/multiple wells, study of gas properties and treatment adaptability, recommendations for modular deployment, analysis of liquefaction unit cooling capacity matching, calculation of logistics and transportation costs, strategies for handling gas source variability, assessment of environmental impact and policy compliance, evaluation of surface facility compatibility, identification of risk points, and formulation of mitigation strategies.

Customized design of shale gas-specific process flows, optimization of integrated processes including dehydration, purification, compression, cooling, and liquefaction, design of modular skid structures, selection of corrosion-resistant and wear-resistant key equipment, output of low-temperature control and safety interlock logic, design of LNG storage and loading interfaces, planning of process pipelines and electrical wiring schemes, delivery of construction interface drawings, planning of skid-mounted deployment schemes, and coordination of on-site equipment interface design.

Execution of skid-mounted liquefaction system manufacturing, assembly and delivery of key units including compressors, expanders, heat exchangers, and control modules, overall construction planning and management, coordination of site preparation and foundation construction, equipment arrival coordination and layout, equipment installation and positioning, integration of dispatch systems and communication interfaces, system safety testing and third-party inspections, joint commissioning of liquefaction units, and closed-loop management of modular transportation and rapid on-site assembly.

Functional testing of units, cold start-up process drills, simulation of low-temperature equipment start-up, verification of control logic, validation of safety interlocks, setting of LNG storage tank operating parameters, testing of loading interface connections, integration of operational data acquisition systems, deployment of platform-based remote monitoring, on-site training and simulation drills for client personnel, delivery of maintenance materials and operation manuals, formulation of periodic operation and maintenance plans, and configuration of operation and maintenance support interfaces.

Technical Equipment Highlights

Modular skid-mounted liquefaction system with high integration, designed to operate in low-temperature environments, featuring rapid deployment and dismantling capabilities, low energy consumption with efficient liquefaction pathways, embedded intelligent control systems with high automation levels, compatibility with wellsite independent power supply and remote control, compact structure facilitating transportation and deployment, closed-loop system encompassing the entire liquefaction and storage process, support for multi-gas source mixed liquefaction with flexible adjustment capabilities, and remote operation and maintenance support with intelligent alarm systems.

Application Scenarios

Applicable to various shale gas extraction regions, particularly suitable for wellsite deployments with high initial production and significant later-stage fluctuations, scenarios lacking centralized pipeline access requiring on-site liquefaction and subsequent transportation, development of unconventional gas fields, distributed LNG supply stations, regional natural gas peak shaving projects, industrial park independent gas supply systems, front-end processing units for shale gas compression stations, and LNG satellite station gas supply scenarios.

Customer Value Proposition

By deploying mobile skid-mounted liquefaction units, clients can rapidly achieve on-site shale gas liquefaction and cold liquid transportation, effectively addressing development challenges posed by production fluctuations and dispersed geography. The system supports rapid deployment and modular expansion, suitable for replication across multiple wellsites, enhancing resource conversion efficiency. Intelligent operation reduces reliance on manual intervention, ensuring convenient and reliable operation and maintenance. Through the production of commercial LNG, clients can monetize gas resources and achieve economic returns, meeting objectives for clean energy transformation and carbon emission reduction.