Oil and gas production enhancement systems are integrated systems of technologies and equipment designed to improve the production and recovery rate of oil and gas wells. They are specifically designed to address problems such as low reservoir permeability and high fluid flow resistance, and are widely used in the mid-to-late stages of conventional oil and gas development, as well as in unconventional oil and gas development such as shale oil and tight gas. Core technologies include hydraulic fr

Product Detail

I. Technical Parameters

The equipment includes 6 basic models from Type I to Type VI, and can be customized according to the associated gas volume and site requirements. The core parameters are as follows (basic models):

Model	External pressure	Maximum displacement (standard condition)	Inlet pressure	Startup pressure	Operating voltage	Rated power	Equipment dimensions (length × width × height)	Weight
Type I (1 cylinder)	2MPa	400m³/d	-100KPa~2MPa	100KPa~2MPa	AC380V	11KW	1500×1300×1600mm	700KG
Type II (1 pump, 2 cylinders)	2MPa	800m³/d	-100KPa~2MPa	100KPa~2MPa	AC380V	22KW	1500×1300×1600mm	850KG
Type III (2 pumps, 4 cylinders)	4MPa/8MPa	1200m³/d	-100KPa~4MPa	100KPa~4MPa	AC380V	45KW	3200×2300×1800mm	1800KG
Type IV (3 pumps, 6 cylinders)	4MPa/8MPa	1800m³/d	-100KPa~4MPa	100KPa~4MPa	AC380V	68KW	4500×2300×1800mm	2200KG
Type V (4 pumps, 8 cylinders)	4MPa/8MPa	2400m³/d	-100KPa~4MPa	100KPa~4MPa	AC380V	92KW	6700×2300×1800mm	3600KG
Type VI (5 pumps, 10 cylinders)	4MPa/8MPa	3000m³/d	-100KPa~4MPa	100KPa~4MPa	AC380V	115KW	8000×2300×1800mm	5000KG

Note: The default diameter of the inlet and outlet ends is DN50. DN65 or DN80 reducing flange interfaces can be customized free of charge. The design displacement is the standard flow rate when the inlet pressure is 0.1MPa. When the inlet pressure is 1MPa, the outgoing flow rate is 10 times the standard flow rate.

II. Product Introduction

Xi'an Hongding Energy Technology Co., Ltd. has been deeply involved in the oil and gas field equipment industry for many years, focusing on the pain points of gas field production. It has independently developed a new type of intelligent negative pressure gas production (mixed transportation and pressurization) device, using innovative technology to solve traditional extraction problems and providing an efficient, intelligent, and environmentally friendly integrated solution for increasing oil and gas production.

III. Current Status of Industry Applications

Current Industry Application Status As gas field extraction time increases, formation energy gradually decreases, and the liquid-carrying capacity of gas wells weakens. Some gas wells experience water flooding problems, seriously affecting gas production efficiency and cycle time. Currently, the industry mainly uses methods such as foam drainage gas production and compressor pressurization to reduce back pressure to extend the life of gas wells, but these methods have many drawbacks:

Complex processes: Compressor pressurization requires pre-gas-liquid separation, and foam drainage requires additional treatment of the discharged liquid, making the overall process cumbersome;

High operating costs: The equipment occupies a large area, requires many supporting facilities, has high energy consumption and high maintenance costs, and the cost of compressors and operating expenses remain high;

High reliance on manual labor: Frequent manual intervention is required during operation, and separated water needs to be repeatedly transported, resulting in low operating efficiency;

Poor adaptability: Traditional compressors cannot accept water, have stringent requirements for the medium, and cannot achieve mixed transportation of oil, gas, and water.

IV. Core Product Introduction

(I) Product Positioning

The new negative pressure gas production (mixed transportation pressurization) intelligent device is a skid-mounted intelligent device developed for the current situation of back pressure reduction and drainage gas production in gas fields. It features strong pressurization capacity, wide adaptability, and safe operation, effectively solving the problem of mixed transportation in gas well production and achieving increased production and efficiency as well as low-carbon operation in oil and gas fields.

(II)Core Components

The equipment adopts a skid-mounted design and mainly consists of core components such as ball valves, basket filters, pressure transmitters, gas booster assemblies, electrical control boxes, check valves, explosion-proof motors, hydraulic pump booster assemblies, pressure regulating valves, and condenser assemblies. It features high integration and convenient installation.

(III) Working Principle

* **Media Filtration:** The booster medium enters the device after solid impurities are removed by the basket filter.

* **Intelligent Start/Stop:** The pressure sensor on the inlet pipeline monitors the pressure in real time. When the set start pressure is reached, the hydraulic pump automatically starts.

* **Boosted Delivery:** The control system's switching and reversing assembly drives the gas booster assembly, boosting the medium before it is pumped into the external delivery system.

* **Safety Protection:** The system has a pressure over-limit alarm function. It automatically stops when the set pressure is reached and restarts after the downstream pressure recovers.

* **Flow Monitoring:** Equipped with a flow calculation module, it displays instantaneous and total flow rates in real time, facilitating production management.

(IV) Multi-Scenario Applications

1. Gas Field Sector

Negative Pressure Gas Production: Boosting the produced medium at the wellhead and connecting it to the external transmission pipeline reduces wellhead pressure, increases gas velocity, enhances the gas well's liquid-carrying capacity, and achieves increased production.

Pipeline Pressurization: Relay pressurization of the gas transmission pipeline reduces back pressure in the collection pipeline, ensuring normal connection between the gas transmission pipeline and downstream equipment.

Gas Lift Operation: In the later stages of gas well production, pressurizing the produced medium through separation or utilizing adjacent well gas to provide a high-pressure gas source, combined with other measures, increases production.

2. Oil Field Sector

Oil Well Back Pressure Reduction: Controlling the annulus pressure of the casing and oil well increases oil well production, while simultaneously pressurizing and returning associated gas to meet safety and environmental protection requirements.

Associated Gas Pressurized External Transmission: Pressure control and pressurization of associated gas separated by the separator ensures compliant and safe handling.

Multi-Media Mixed Transmission: Achieving pressurized mixed transmission of associated gas, condensate, and oil well produced fluids, simplifying the transportation process.

V. Core Product Advantages

Strong Mixed Transportation Capacity: Unaffected by gas-liquid media, eliminating the need for a pre-separator, achieving true oil-gas-water mixed transportation, significantly simplifying the process;

Intelligent and Unmanned Operation: Fully automated operation, start-up and shutdown are automatically executed by the control system based on pressure monitoring results, supporting real-time and remote setting and adjustment of pressure parameters, requiring no manual intervention;

Safe and Reliable: Utilizing gas isolation technology, eliminating the need for lubrication, preventing gas leakage risks, and adapting to complex working conditions;

Low Energy Consumption and Cost: Multi-pump independent operation design, allowing for time-sharing or pressure-sharing operation, reducing energy consumption; overall low power consumption, significantly lower operating and maintenance costs than traditional equipment;

Flexible Maintenance: Supports group maintenance, eliminating the need for complete equipment shutdown, ensuring production continuity;

Easy Installation: Upgraded to an integrated barracks-style design, small footprint, simple installation, and convenient maintenance;

Data Visualization: Real-time uploading of operating status data, supporting remote intelligent monitoring for refined management;

Environmental Compliance: No need for venting and restarting, meeting environmental production requirements.

VI.Advantages compared to similar products.

Comparison Projects	New type of negative pressure gas extraction device	reciprocating compressor	Twin-screw compressor	V-type piston compressor
Volume structure	Skid-mounted equipment, small footprint	Complex structure and large volume	Moderate structure and small size	Complex structure, small size
Liquid carrying capacity	Oil, gas and water mixed transportation, without pressure vessel	Liquid-free, requires a pre-separator.	Can carry small amounts of liquid	Liquid-free, requires a pre-separator.
Maximum external pressure	0~4/8MPa (wide range)	Typically ≤1.5MPa (Level 2 ≤4.5MPa)	3MPa	-
Energy consumption	Low energy consumption	High energy consumption	High energy consumption	High energy consumption
Routine maintenance	Automatic operation, unattended	Maintenance is complex	Maintenance is complex	Maintenance is complex
Maintenance and repair	Tiered maintenance, no production stoppage	Production stoppage for maintenance	Production stoppage for maintenance	Production stoppage for maintenance
Operational control	High cost-performance ratio and low operating costs	Large investment and high operating costs	Large investment and high operating costs	Large investment and high operating costs

VII. Field Application Cases

Case 1: Changqing Oilfield Negative Pressure Gas Production Project

Before installation: Wellhead back pressure 0.53~0.75MPa, casing pressure 0.56~0.8MPa;

After installation: Wellhead back pressure reduced to 0.39~0.48MPa, casing pressure reduced to 0.12~0.22MPa, gas well fluid carrying capacity significantly improved, and production steadily increased.

Case 2: Yanchang Oilfield Negative Pressure Gas Production Project

Before installation: Wellhead back pressure 1.9~3.5MPa, casing pressure 0.56~0.8MPa;

After installation: Wellhead back pressure reduced to 0.8~1.5MPa, casing pressure reduced to 0.20~0.40MPa, system operation stable, cumulative flow reached 40200m³.

Case 3: Shanxi Coalbed Methane Negative Pressure Gas Production Project

Application Results: Multiple units operated in parallel, with front-end pressure stable at 1.24~1.84MPa and back-end pressure at 2.70~2.89MPa. The highest daily gas production per well reached 11,537 m³, and the highest total cumulative flow exceeded 1,484,000 m³, significantly improving production efficiency.

Case 4: Sichuan Old Well Resumption Project

Operational Status: Mixed transportation was initiated in May 2024, and gas lift measures were implemented in July. Monitoring data on July 8th showed an instantaneous flow rate of 472~485 m³/h and a daily production of 4,293~8,649 m³, successfully achieving the resumption and efficiency improvement of the old well.

Case 5: Integrated Gas Lifting and Transmission Project at a Well Site in North China

Operating Data: Three units operate simultaneously, with a front-end pressure of 1.67~1.68MPa, an instantaneous flow rate of 89.4~90.7L/S, and a total cumulative flow rate of 383,200m³. The operation is stable and the energy-saving effect is significant.