Product Overview
The Downhole Gas-Liquid Separator PDM drilling motor gas removal protector is a special pre-separation gas-liquid treatment tool developed for coiled tubing downhole PDM drilling motor anti-gas-damage protection remedial workover operations.
This gas-liquid separator is mainly matched for combined use with conventional positive displacement drilling motors (PDM / screw drilling motors), and installed at the upper section of the PDM motor assembly; the internal flow diversion structure can effectively strip and separate gas mixed and entrained inside the drilling fluid, the gas separation efficiency reaches 95%, which can maximally avoid and reduce gas erosion damage to the rubber stator components of the PDM drilling motor, greatly extending the service life of the drilling motor. The whole tool adopts full bearing-free integrated structural design, completely cancels internal rotary bearing assembly, eliminates hidden failure risks caused by bearing abrasion and wear, and reduces post-operation maintenance workload and spare parts replacement cost.
The Downhole Gas-Liquid Separator has no complex internal movable friction components, rotary bearing assemblies or differential pressure release mechanisms, with extremely simplified wellsite operation flow and low maintenance cost; construction crews only need to connect the gas-liquid separator above the PDM motor in the coiled tubing tool string, run the whole tool string down along the tubing inner wall to the target downhole construction section, start the surface circulation pump, the internal flow diversion structure will automatically realize gravity gas-liquid separation, separated liquid flows downward into the PDM motor while separated gas is discharged into the annulus, no additional auxiliary operation steps such as drop ball delivery or shear pin impact jarring are needed, shortening wellsite operation time and reducing human error risks.
The standardized product lineup covers outer diameter sizes ranging from 2-1/8" to 2-7/8", with complete outer diameter specification series to match different tubing inner diameter constraint conditions and various coiled tubing downhole PDM motor protection construction demands. All standard specifications adopt standard working condition configuration; custom outer diameter and base material corrosion resistance grade customization are available upon customer technical drawing submission.
Complete Technical Specification Table
| PN Part Number | OD Outer Diameter | Applicable Flow Rate (L/min) | Make-Up Length | Working Condition Grade | Connection Thread |
|---|---|---|---|---|---|
| L5302125120 | 2-1/8" | 76 ~ 189 L/min | Custom Length | STD Standard | 1-1/2" AMMT |
| L5302875120 | 2-7/8" | 189 ~ 556 L/min | Custom Length | STD Standard | 2-3/8" PAC |
Note: Custom outer diameter and base material corrosion resistance grade modification bearing-free downhole gas-liquid separators are available via engineering consultation. All standard specifications adopt STD standard working condition configuration; custom H₂S sour service anti-sulfide stress cracking high-corrosion-resistant alloy material grade is optional for high-sulfur corrosive downhole wellbore fluid environment construction conditions. Multiple standard connection thread specifications (AMMT / PAC) are matching options for each specification to adapt to different coiled tubing tool string connection matching demands.
Core Features & Advantages
High Gas Separation Efficiency Design: The internal flow diversion structure can effectively strip and separate gas mixed and entrained inside the drilling fluid, the gas separation efficiency reaches up to 95%, fully eliminate gas bubble corrosion and expansion damage to the rubber stator components of the PDM drilling motor, maximize drilling motor service life.
Full Bearing-Free Integrated Structural Design: The whole tool completely cancels internal rotary bearing assembly, adopts bearing-free integrated flow channel structure, eliminates hidden failure risks caused by bearing abrasion and wear, and reduces daily maintenance labor and spare parts replacement cost.
PDM Positive Displacement Drilling Motor Matched Combined Use Design: The gas-liquid separator is specially matched for combined use with conventional positive displacement drilling motors (PDM / screw drilling motors), mounted on top of PDM motor assembly to realize pre-gas-separation before fluid enters drilling motor, guarantee stable gas-free liquid supply to PDM motor.
Full Outer Diameter Size Range Coverage: The applicable outer diameter size range of the bearing-free downhole gas-liquid separator covers 2-1/8" to 2-7/8", with complete outer diameter specification series to match different tubing inner diameter constraint conditions and various coiled tubing downhole PDM motor protection construction demands.
Ultra-Simplified Wellsite Operation Logic: The downhole gas-liquid separator has no complex internal movable friction components, rotary bearing assemblies or differential pressure release mechanisms, the operation flow is highly streamlined: only need to connect the gas-liquid separator above the PDM motor in the coiled tubing tool string, run the whole tool string down along the tubing inner wall to the target downhole construction section, start the surface circulation pump, the internal flow diversion structure will automatically realize gravity gas-liquid separation, separated liquid flows downward into the PDM motor while separated gas is discharged into the annulus, no complex auxiliary operation steps such as drop ball delivery or shear pin impact jarring are needed to shorten wellsite operation time and reduce human error risks.
Low Routine Maintenance Design: The integral cylindrical alloy steel tool body eliminates vulnerable split assembly rotary bearing wear parts; after each downhole PDM motor protection construction operation, only simple surface circulating fluid debris cleaning and internal flow channel blockage flushing inspection are required, no complex disassembly, internal rotary bearing replacement or spring preload adjustment maintenance procedures, greatly reducing daily maintenance labor and spare parts inventory cost.
Application Scenarios
1. Coiled tubing downhole PDM drilling motor anti-gas-damage protection heavy-load intervention treatments, including pre-gas-separation treatment before drilling fluid enters PDM motor to eliminate gas erosion damage to PDM rubber stator remedial workover construction operations
2. Conventional sweet crude oilfield bearing-free high-efficiency downhole gas-liquid separator PDM motor gas separation protection remedial workover service (STD Standard carbon steel working condition grade)
3. High-sulfur H₂S containing corrosive downhole wellbore fluid construction project PDM motor anti-gas-damage protection heavy workover projects requiring H₂S sour service anti-sulfide stress cracking high-corrosion-resistant alloy material grade
4. Long-term continuous repeated gravity gas-liquid separation load safety protection for coiled tubing bottom-hole assemblies in onshore and offshore oilfield coiled tubing downhole PDM motor protection remedial workover intervention projects
Standard Delivery Package
Complete bearing-free downhole gas-liquid separator integral cylindrical pre-assembled unit including main tool cylinder body and internal flow diversion gravity gas-liquid separation channel structure
Spare interchangeable internal flow channel debris cleaning maintenance kit for on-site flow passage blockage flushing and cleaning
Full factory inspection test report including repeated gravity gas-liquid separation load fatigue resistance test, integral tensile load test, different circulation flow rate gas separation efficiency calibration test data
Product dimension drawing and official installation & operation instruction manual, with detailed on-site coiled tubing downhole PDM drilling motor gas separation protection operation guidance, with clear confirmation reminder for working condition grade selection (STD standard carbon steel for non-corrosive well / H₂S sour service anti-corrosion alloy for high-sulfur corrosive well) during order placement
Quality Warranty & After-Sales Service
Warranty Coverage: 12 months after factory shipment or 2000 cumulative gravity gas-liquid separation load cycles, whichever condition is reached first
Full factory inspection: Each finished bearing-free downhole gas-liquid separator passes integral tensile load test, repeated gravity gas-liquid separation load fatigue test, different circulation flow rate gas separation efficiency calibration test before factory delivery
Free professional technical support: Our oilfield downhole tool engineering team provides coiled tubing downhole PDM motor gas separation protection remedial workover tool string matching, outer diameter & working condition grade (STD / H₂S) selection consultation free of charge
Long-term spare parts supply: All interchangeable internal flow channel debris cleaning maintenance accessories are stocked with competitive factory bulk pricing
Custom development service: Support custom outer diameters, customized base material corrosion resistance grade specifications, bottom coiled tubing connection thread profiles and special size bearing-free downhole gas-liquid separators based on customer technical drawings
FAQ
Q1: What is the core function of a Downhole Gas-Liquid Separator Bearing-Free PDM Drilling Motor Gas Removal Protector?
The Downhole Gas-Liquid Separator PDM drilling motor gas removal protector is a special pre-separation gas-liquid treatment tool developed for coiled tubing downhole PDM drilling motor anti-gas-damage protection remedial workover operations. This gas-liquid separator is mainly matched for combined use with conventional positive displacement drilling motors (PDM / screw drilling motors), and installed at the upper section of the PDM motor assembly; the internal flow diversion structure can effectively strip and separate gas mixed and entrained inside the drilling fluid, the gas separation efficiency reaches 95%, which can maximally avoid and reduce gas erosion damage to the rubber stator components of the PDM drilling motor, greatly extending the service life of the drilling motor. The whole tool adopts full bearing-free integrated structural design, completely cancels internal rotary bearing assembly, eliminates hidden failure risks caused by bearing abrasion and wear, and reduces post-operation maintenance workload and spare parts replacement cost. The applicable outer diameter size range covers 2-1/8" to 2-7/8". Two independent working condition material grade options are provided: STD standard carbon steel grade for conventional non-corrosive wellbore environments without high-concentration H₂S corrosive medium; H₂S sour service high-corrosion-resistant alloy grade for high-sulfur H₂S containing corrosive downhole wellbore fluid construction conditions. No complex internal movable friction components, rotary bearing assemblies or spring assemblies are equipped, operation flow is highly simplified, widely applied for coiled tubing downhole PDM motor gas separation protection remedial workover construction operations.
Q2: What three core structural advantages does this Downhole Gas-Liquid Separator Bearing-Free PDM Drilling Motor Gas Removal Protector own?
1. High gas separation efficiency design, the internal flow diversion structure can effectively strip and separate gas mixed and entrained inside the drilling fluid, the gas separation efficiency reaches up to 95%, fully eliminate gas bubble corrosion and expansion damage to the rubber stator components of the PDM drilling motor, maximize drilling motor service life; 2. Full bearing-free integrated structural design, the whole tool completely cancels internal rotary bearing assembly, adopts bearing-free integrated flow channel structure, eliminates hidden failure risks caused by bearing abrasion and wear, and reduces daily maintenance labor and spare parts replacement cost; 3. PDM positive displacement drilling motor matched combined use design & ultra-simplified wellsite operation logic, the gas-liquid separator is specially matched for combined use with conventional positive displacement drilling motors (PDM / screw drilling motors), mounted on top of PDM motor assembly to realize pre-gas-separation before fluid enters drilling motor, guarantee stable gas-free liquid supply to PDM motor; the downhole gas-liquid separator has no complex internal movable friction components, rotary bearing assemblies or differential pressure release mechanisms, only need to connect the gas-liquid separator above the PDM motor in the coiled tubing tool string, run the whole tool string down along the tubing inner wall to the target downhole construction section, start the surface circulation pump, the internal flow diversion structure will automatically realize gravity gas-liquid separation, separated liquid flows downward into the PDM motor while separated gas is discharged into the annulus, no complex auxiliary operation steps such as drop ball delivery or shear pin impact jarring are needed to shorten wellsite operation time and reduce human error risks; the product also features complete outer diameter size range coverage and integral cylindrical tool body low maintenance design to further expand applicable construction scope and reduce post-operation maintenance workload.
Q3: What outer diameter sizes and configurable options do these Downhole Gas-Liquid Separator Bearing-Free PDM Drilling Motor Gas Removal Protectors support?
Our standard applicable outer diameter size range covers 2-1/8", 2-7/8". Each OD size supports two independent working condition material grade versions for free matching selection: STD standard carbon steel working condition grade and H₂S sour service high-corrosion-resistant alloy working condition grade. All models support custom coiled tubing bottom connection threads (AMMT / PAC) compatible with global mainstream coiled tubing connector assemblies and other supporting downhole PDM motor gas separation protection remedial workover tools. Custom base material corrosion resistance grade specifications are available upon customer downhole wellbore fluid H₂S concentration corrosive environment construction demands.
Q4: What is the standard production lead time for bulk purchase orders?
All standard PN part numbers are kept in factory inventory, goods can be delivered within 7–15 working days. Customized bearing-free downhole gas-liquid separators with special outer diameters or customized base material corrosion resistance grade specifications & bottom coiled tubing connection thread profiles require 20–35 working days production cycle, subject to total order quantity and customization scope.
Get Custom Datasheet & Factory Quote
We are a professional OEM & ODM manufacturer focused on full series coiled tubing downhole PDM motor gas separation protection remedial workover service tools, covering bearing-free downhole gas-liquid separators, bypass flow divider valves, hydraulic pulse vibration shock exciters, thru-tubing hydraulic retractable blade underreamers, tapered pear conical pilot milling shoes, concave recessed milling shoes, five-blade five-wing milling shoes, flat bottom milling shoes, combination flat blade milling shoes, muncher multi-cutting milling shoes, convex nose pilot milling shoes, bi-directional reciprocating impact hammers, coiled tubing positive displacement drill motors, magnetic fishing rods, magnetic junk retrieval magnets, venturi junk baskets, flow activated releasable fishing overshots, flow activated releasable fishing spears, flow activated releasable JDC running/pulling tools, flow activated releasable GS fishing tools, bi-direction mechanical accelerators, bi-direction hydraulic accelerators, bi-direction hydraulic jars, up-stroke hydraulic jars, bi-direction mechanical jars, up-stroke mechanical jars, wireline grabs, wireline spears and all other supporting downhole fishing, jarring, anchoring and washing service tools. Every finished product undergoes strict factory tensile load, repeated gravity gas-liquid separation load fatigue, different circulation flow rate gas separation efficiency calibration testing, with complete material inspection certification attached to each shipment. Please share your detailed technical requirements, including target outer diameter size, downhole wellbore fluid H₂S concentration corrosive environment construction conditions, working environment and all customized specification demands. Our dedicated oilfield downhole tool engineering team will send complete detailed technical datasheets and competitive factory wholesale quotations within 24 business hours, and provide professional on-site coiled tubing downhole PDM drilling motor gas separation protection operation guidance, with clear confirmation reminder for working condition grade selection (STD standard carbon steel for non-corrosive well / H₂S sour service anti-corrosion alloy for high-sulfur corrosive well) during order placement.
