This non-technical guide to daily drilling reports presents popular oil and gas termi-nology in a manner that’s easy to unders-tand.

A great resource for people who either work or interact with the industry but are not petroleum engineering professionals.

Daily operations reporting made simple.

A Beginner’s Guide

WellEz Information Management, LLC. All Rights Reserved 2016

A Beginner’s Guide

How to Read a Daily Drilling

Report

TMD ROP BHA

POOH MW HWDP

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Table of Contents

Contents Header Section .............................................................................................................................................. 3

Cost Summary Section .................................................................................................................................. 4

BOP Section ................................................................................................................................................... 4

Casing Section ............................................................................................................................................... 5

Mud Section .................................................................................................................................................. 5

Drill Bits Section ............................................................................................................................................ 7

Bit Grading Section........................................................................................................................................ 8

Pumps Section ............................................................................................................................................... 8

BHA Section ................................................................................................................................................... 9

Survey Section ............................................................................................................................................. 10

Time Breakdown Section ............................................................................................................................ 11

Disclaimer Daily Drilling Report’s come in many different variations that will change depending on drilling type, operation area,

formation type, and company culture. The DDR that we have selected for this resource combines the most common

aspects found with US based onshore drilling operations and my not be inclusive of every data point an Operator may

track.

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Header Section The header section of a Daily Drilling Report typically contains information about the location and status of the well. It

also includes contact information for on-site personnel. This section is meant to give the viewer the most pertinent

information without looking through the details provided further down on the report.

Fields found on the Daily Drilling Report

Report Date: Drilling Operations are typically tracked from 6am to 6am with two crews working 12 hour shifts

each. The report date corresponds to the calendar date when reports are sent out at 6AM.

Report Number: The number of reports that have been sent for the drilling project.

Well Name: This can either be the legal well name that was filed on the drilling permit with the state regulatory

agency or a common well name that is used within the organization. Operators can name their wells anything

from the family name of the lease-owners to their favorite superheroes. A typical format is “lease name_site

number_well number_well type”. Example: Deborah 28 #1H

Job Name: WellEz references each phase of operating a well as a “job”. An unconventional well can have a

Drilling Job, Completion Job, and then possibly a Workover Job(s) as the well ages. Each job can be named after

the phase, such as “Original Drilling”, or can contain a brief description of the work being done such as “Utica: 27

Stage Slickwater Frac”.

Contractor: Operating companies typically do not own drilling rigs or employ full-time drilling crews. They

“rent” or “lease” the specific type of drilling rig and crew needed for a job from a drilling contractor such as

Halliburton or H&P.

AFE #: (Authority for Expenditure) - An AFE is an approved budget for a job. Each AFE is assigned an internal

identifier for tracking field costs in the company’s accounting systems. Most AFE numbers are a combination of

letters and numbers containing the cost type (job type) and calendar year the project is occurring. Ex:

HRZD201509

Field: An area that has known hydrocarbons or other mineral resources.

Lease: An area of surface land where a contract between the mineral owner and Oil & Gas Company grants the

company rights to explore, drill and produce oil, gas, and other minerals for a specified term.

API #: A unique, permanent, numeric identifier assigned to each well drilled for oil and gas in the United States.

The API number is one of many industry standards established by the American Petroleum Institute.

Elevation: The ground elevation above sea level at the well site. This allows well log depths to be corrected to

sea level.

RKB: (Rotary Kelly Bushing) - The height of the Kelly Bushing from ground level. Depth measurements are

commonly referenced to the Kelly bushing instead of ground level.

Spud Date: Generally the date the ground has been first penetrated for the purposes of drilling an oil and gas

well. However, some states vary on defining the terms at which a spud date can be identified.

DFS: (Days From Spud) - Calendar days from the spud date of the well.

DOL: (Days on Location) - Calendar days from when the operating company first arrived on location. This can

include the time spent preparing the drill site and moving in the equipment needed to begin drilling operations.

MD: (Measured Depth) - Length of the wellbore as if determined by a measuring stick. This number is calculated

by measuring the lengths of all individual joints, collars, and other drill-string components and adding them

together.

TVD: (True Vertical Depth) - The vertical distance from a point in the well to a point at the surface, usually the

elevation of the RKB.

24 Hr Footage: The difference in measured depth from the previous day at 6am to present day 6am.

Hrs Drilling: Operators can define what constitutes “drilling” in different ways but typically it is the amount of

time spent with the drill bit at the bottom of the wellbore.

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Present Operations: A short summary of what is happening at the time of reporting.

Activity Planned: A short summary of what is planned for the coming day.

Cost Summary Section Any time a cost is incurred during a drilling operation it is coded to a specific accounting category or code that has been

defined during the AFE process. These codes are then split into two groups named Intangible and Tangible codes.

Intangible codes represent costs for equipment and services that have a subjective value and can vary depending on the

circumstances. Tangible codes represent costs that are fixed and related to equipment or assets that will be

permanently associated with the project. It is important to know that Daily Drilling Reports typically contain only field

estimates of costs happening at the well site. The operating company does not know the true cost of the well until 60-

90 days afterwards, once all invoices have been submitted by various vendors and processed by the accounting

department. Rig consultants/Company men must code costs as accurately as possible so that the operations team can

know if the project is going to exceed the budget (AFE) or not. In cases where the budget is exceeded, operations teams

can write supplemental AFE’s to increase the budget and properly allocate funds before final invoices are received and

processed for the project.

Fields Found on the Daily Drilling Report

Drill AFE: The proposed total budget for the drilling project

DIDC: (Daily Intangible Drilling Cost) - The daily total of field costs incurred under intangible accounting codes.

DTDC: (Daily Tangible Drilling Cost) - The daily total of field costs incurred under Tangible accounting codes.

CDC: (Cumulative Daily Cost) - The sum of all field costs incurred on the well today

CWC: (Cumulative Well Cost) - The sum of all field costs incurred on the well to date

DMC: (Daily Mud Cost) - Daily total of field costs for drilling fluids, chemicals, and additives.

CMC: (Cumulative Mud Cost) - Cumulative total of field costs for drilling fluids, chemicals, and additives

BOP Section The Blowout Preventer or BOP is a safety device installed on an Oil and Gas well to monitor and control pressure spikes during a kick or in the drilling process. Kicks in the pressure of the well can cause dangerous or even catastrophic failures known as a blowout. Blowout preventers activate various types of hydraulic rams that will close off the wellbore or shear the equipment downhole during a kick in pressure. Other Resources:

Schlumberger Oilfield Glossary

Wikipedia article of Blowout Preventer

Video of large deep water Blowout Preventer (BOP) Fields found on the Daily Drilling Report

Last BOP Test: Date of the last time the BOP pressure tests were conducted. BOP test intervals should be a maximum of every 21 days.

Last BOP Drill: Date of the last time a drill to simulate a kick in pressure was conducted by the Drilling Supervisor.

Next BOP Test: Date of the next scheduled pressure test of the blowout preventer.

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Casing Section Casing is steel pipe lowered and cemented into place to stabilize a wellbore against collapses and increasing downhole pressures. Casing is placed to protect fresh water tables or isolate certain zones in the wellbore. Multiple ‘strings’ of Casing in smaller diameter are usually cemented into place during the Drilling and Completion process adding multiple layers of protection. Other Resources:

Schlumberger Oilfield Glossary

Wikipedia article

Wikipedia article

Video of Production Casing being installed Fields found on the Daily Drilling Report

Casing Type: Used to differentiate the purpose of the Casing. Common names are: o Conductor Casing: Initial casing string to add stability. Typically short and can be added before the

drilling rig moves onsite. Also referred to as Conductor Pipe or Drive Pipe. o Surface Casing: Larger diameter pipe set to protect fresh water formations from contamination. Blow

out preventer or BOP is typically attached to the Surface Casing. o Intermediate Casing: Protects wellbore stability against pressure abnormalities in the formation and

potential wellbore collapses. o Production Casing: Typically the final casing string set to the TMD (total measured depth) of the

wellbore across the reservoir. Production casing may be perforated during the completion process or have other completions components installed to it.

OD: The outside diameter measurement of the Casing. These sized are typically standardized in the industry and displayed in inches even in counties where the metric system is used in Drill and Complete operations.

Weight: The weight per foot of a Casing string.

Grade: Classification of strength of the Casing. Letter of the Grade refers to the tensile strength, the second part (number) refers to the minimum yield strength. Long strings of Casing may require higher grade materials on the upper portion to withstand the weight of the entire string.

MD: The measured depth the Casing is set to as measured along the wellbore.

TVD: The true vertical depth of the bottom of the Casing, as measured from the Kelly bushing.

Mud Section During drilling operations, the drilling fluids (mud) are relied on to do critical tasks like maintain hydrostatic pressure,

transport the drill cuttings to the surface, cool the drill bit, and seal/preserve the wellbore. A daily drilling report often

looks at the 5 basic properties of mud monitored or altered during the drilling process:

Other Resources:

Schlumberger Oilfield Glossary

Field Testing Guide

Fields found on the Daily Drilling Report

Density: Determines mud's ability to suspend cuttings or clear obstructions to the surface.

o Mud Weight In: (MWI) - The Density of the drilling fluid as measured before entering the wellbore

o Mud Weight Out: (MWO) - The Density of the drilling fluid as measured after exiting the wellbore. This

is important for comparison against the mud weight in.

Rheology: Determines the flow properties of the mud.

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o Funnel Viscosity: (FV) - A basic measure of the viscosity profile of the mud observed in seconds per

quart when poured through a Marsh Funnel.

o Plastic Viscosity: (PV) - The viscosity profile of the mud observed when measured by a rotating

viscometer or rheometer.

o Yield Point: (YP) - The minimum amount of shear stress required for the fluid to begin to flow.

o Gels: (10S) - The gel strength measure reading from the dial on a rotating viscometer after 10 seconds of

being undisturbed.

o Gels: (10M) - The gel strength measure reading from the dial on a rotating viscometer after 10 minutes

of being undisturbed.

o Gels: (30M) - The gel strength measure reading from the dial on a rotating viscometer after 30 minutes

of being undisturbed.

Fluid Loss: Determines the loss of fluid to formation and the maintenance of hydrostatic pressure.

o Filtrate Volume: The volume of mud filtrate measured after 30 minutes in API static filtration tests.

o Cake Thickness: A measurement of the thickness of the filter cake, usually recorded in 32nds-inch.

o High Pressure, High Temperature Filtration Test: (HTHP) - The measure of the static filtration behavior

of mud at an elevated temperature and pressure.

o Water Loss: (WL) - The volume of liquid measured in the filtration tests performed according to API

specifications, in units of cm3/30 minutes.

Chemical Properties: Monitoring mud's chemical properties help ensure that the mud's physical properties are

not changed or eroding the wellbore.

o pH: Indicates the mud systems hydrogen ion concentration, determining acidity or alkalinity.

o Chlorides: (Cl) - Indicates the total chlorides in the mud system.

o Potassium: (K) - Indicates level in the mud system, promotes protective layer on wellbore wall.

o Calcium: (Ca) - Indicates Calcium level in mud system, promotes protective layer on wellbore wall.

o Phenolphthalein alkalinity of mud filtrate: (PF) - The high point (8.3) of the alkalinity test, showing the

concentration of OH, HCO and CO3.

o Methyl orange alkalinity of mud filtrate: (MF) - The low point (4.3) of the alkalinity test, showing the

concentration of OH, HCO and CO3.

o Methylene Blue Test: (MBT) - Clay content in the system.

Solids Control/Analysis:

o Low Gravity Solids: (LGS) - Measure of the part per billion of Low Gravity Solids like Drill Cuttings and

Bentonite.

o High Gravity Solids: (HGS) - Measure of the part per billion of High Gravity Solids like Barite and other

mud additives.

o % Water: Measure of the volumetric proportion of water the mud.

o % Oil: Measure of the volumetric proportion of oil the mud.

o % Total Solids: Measure of the volumetric proportion of solids the mud.

Other Mud Related Portions of this DDR:

Mud Logging: The log of readings captured at the gas trap near the shakers in a mud system.

o Background Gas: (BGG) - An average or baseline measure of gas entrained in circulating mud

o Connection Gas: (CG) - The influx of gas that is introduced into the drilling fluid when a pipe connection

is made

o Trip Gas: (TG) - Gas entrained in the drilling fluid during a pipe trip, which typically results in a significant

increase in gas that is circulated to surface

o Maximum Gas: (MAX G)- Gas produced from the volume of cutting drilled.

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o Formation Multi Test: (FMT) - A tool used to obtain pore pressure gradient to estimate production

capabilities from parts of the log

o Lithology: The macroscopic nature of the mineral content, grain size, texture and color of rocks.

Mud Additives: Based on the indications, of the 5 mud properties mentioned above, the mud engineer will

perform calculations and determine the best mud additives to employ to optimize drilling and wellbore

conditions.

o Mud Product: Any product added to mud to perform a specific function, such as a weighting agent,

viscosifer, or a lubricant.

o Units: The measure of the additive product

o Amt. Received: The cumulative amount of that product received to date

o Amt. Used: The cumulative amount of that product used to date

Drill Bits Section The drill bits section generally display information about the current drill bit downhole as well as the last few that have been used. The information displayed includes identifying info, key performance indicators, and grading statistics for any bit that has been pulled out of the hole. Other Resources

RigZone Guide

Schlumberger Oilfield Glossary

Types of Drill Bits Fields found on the Daily Drilling Report

No. : (Number / Bit Number) - The bit number signifies the order in which a specific drill bit is used during operations. Example: The 3rd bit used on this job is bit number 3. Bits can also be used multiple times through a job (see Re-Run) in which case the first bit number is still used, often noted with “RR”. Example: The 1st bit is run after the 3rd bit but is shown on the report as bit: “1RR”.

Size: (Bit Size / Bit OD / Bit Outside Diameter) - The size of a drill bit is the diameter of the bit measured from the widest point of outside edge of the drill bit. Size is often measured in inches unless otherwise indicated

Manufacturer: (MFG / MFR) - The company that has manufactured the drill bit.

Type: (Drill Bit Type) Drill bits are specifically designed for particular functions and drilling conditions. These include many generic styles (PDC, Tricones, Drag Bits, Mill Bits, etc). Further technical classifications are established by IADC Classifications and often included in a Type Description.

Ser No. : (Serial Number) - A unique identifying number for a drill bit established by the manufacturer.

Jets: Small-diameter tungsten carbide nozzles located on the face of the drill bit that produce a stream of high velocity drilling fluid.

Re-Run: A re-run occurs when a bit is used downhole, brought up to surface, and then placed back in the hole for another period of time.

In: This refers to the MD of the wellbore at the time the drill bit is put in the hole.

Out: This refers to the MD of the wellbore at the time the drill bit is taken out of the hole.

Feet: Also known as “Progress” is the length drilled by a particular bit.

HOB: (Hours on Bottom) - The hours spent with the drill bit on the bottom of the well bore.

WOB: (Weight on Bit) - The amount of downward force exerted on the drill bit. This is normally measure in thousands of pounds.

RPM: (Revolutions per minute) - The number of full rotations the bit makes in a minute.

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ROP: (Rate of Penetration) - This is a calculation of the Progress of the bit divided by the hours on bit. Measured in feet per hour.

Bit Grading Section IADC bit dull grading was established in conjunction with SPE and used as a systematic method to communicate bit experiences and failures. The intent of the system is to accelerate product and operational development based on a uniform method for reporting. Other Resources

IADC Grading

Fields found on the Daily Drilling Report

Dull: (Dull characteristics) - The observed characteristic most likely to limit further use of the bit.

Loc: (Location) - The location of the primary dull characteristic

Seal: Estimated wear on sealed bearings. Linear scale from 0-8

Gauge: Reports and under-gauge condition for cutting elements intended to touch the wall of the well bore

Other: Remarks on other dull characteristics not listed above

RP: (Reason Pulled) - Why was this bit pulled out of the hole. Ex: TD (total depth)

Pumps Section Pumps are a common piece of equipment that are used during Drilling Operations in order to circulate fluids and are essential for cooling the drill bit and flushing cuttings from the hole. The drilling or mud pump is designed to circulate the drilling fluid under high pressure down the drill string. There are several different types of pumps that can be used and different Makes & Models of each type of pump. The durability and longevity of pumps are crucial to a drilling job’s success. This makes the presence of pump data an important piece of the Daily Drilling report. Other Resources:

Schlumberger Oilfield Glossary

IADC Glossary Fields found on the Daily Drilling Report

Make: The manufacturer of the Pump

Model: The specific type of pump, manufacturers often sell several different models

Liner: Refers to the size of the liner which is an interior piece of the pump

STK: (Stroke) - the length of vertical movements (upward and downward)

SPM: The number of Strokes per minute

PSI: (Pounds per square inch) - Measures the pressure being exerted on the pump

GPM: (Gallons per minute) - The gallons of fluid that are circulated by the pump per minute

GPS: (Gallons Per Second) - The gallons of fluid that are circulated by the pump per second

Efficiency %: This is the relationship between the actual pump displacement and the ideal pump displacement. Typically displayed as a percentage, such as 95% pump efficiency

ECD: (Equivalent circulating density) - The effective density of the circulating fluid in the wellbore that results from the hydrostatic pressure imposed by the static fluid column and friction pressure (lb/gal)

AV DP: (Annular Velocity Drill Pipe) - Measures the speed of the circulating fluids movement in the drill pipe

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AV DC: (Annular Velocity Drill Collar) - Measures the speed of the circulating fluids movement in the drill collar

BIT HHP: The hydraulic horsepower of the bit which is a measurement of the energy per unit of time that is being expended across the bit nozzles

PUMP HHP: The hydraulic horsepower in regards to the pump, which is a measurement of the energy per unit of time

BHA Section The Bottom hole Assembly (BHA) is the lower portion of the drill string, from the drill bit to the drill pipe. The BHA must provide force for the bit to break the rock (weight on bit), survive a hostile mechanical environment and provide the driller with directional control of the well. Other Resources

Schlumberger Oilfield Glossary - BHA

Schlumberger Oilfield Glossary - Jar Fields found on the Daily Drilling Report

Number: This field is the number of the individual BHA component. Each item (component) that makes up the BHA is identified and numbered (#) in order from the bottom of the assembly to the top, #1 - bit, #2 - bit sub, #3 - mud motor, and so one.

Component: Components is a list identifying items that make up the BHA. The assembly can be simple or complex. Common components are a drill bit, bit sub, a mud motor (in certain cases), stabilizers, drill collar, heavy-weight drill pipe, jars, and crossovers for various thread forms. The selection of the right BHA components help to ensure a high rate of penetration (ROP), quick and efficient drilling and lower drilling cost.

OD: The OD field is the Outer Diameter of each component in the BHA. It is important to know the OD of all components that go in the hole to calculate the annular volume between the BHA and wellbore for circulation and displacement volumes, to minimize tight spots in the wellbore, and in the event of a fishing job to recover lost of broken components from the hole.

ID: The ID field is the Inner Diameter of each component in the BHA. Drilling fluid (mud) is pumped down hole through the BHA. The ID of all components that go in the hole is needed to calculate the circulation and displacement volumes. The component IDs will effect circulation pumping pressures.

Length: This field for length of component is the length of each individual component in the BHA. The BHA components are threaded together as they are run in the hole. To know the total length of the BHA each component length is measured individually.

Description: A BHA can be assembly to perform a specific operations. The BHA is given a description that indicates the purpose of the BHA such as Surface Drill, Drill Out, Curve Drill, and Lateral Assembly.

Length: This field is the total length of the BHA, the sum of all the individual component lengths. The length of the BHA will provide the desire weight on bit (WOB).

BHA Wt. Air: This is the weight of the BHA in air without the effect of buoyancy provided by wellbore fluids or drag (friction) from contact with the wellbore.

BHA Wt. Mud: This field is the weight of the BHA adjusted for buoyancy when immersed in drilling fluid (Mud). As the BHA is immersed in mud it becomes lighter. Changes in the density of the drilling fluid will affect the buoyancy of the BHA and the weight of the BHA in mud. Used for torque and drag models to assess hole problems.

ROT. Wt.: This field is the Rotating Weight or Free Rotating Weight. The recorded weight of the drill string rotating off bottom, pipe is not moving up or down, at the constant speed for a period of time; e.g. 80 RPM for 30 seconds. This can be checked with pumps circulating drilling fluid or not, pumps on or off. Used for torque and drag models to assess hole problems. An important point is to achieve a good clean baseline before the

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casing shoe is drilled, then friction factors can be adjusted for a clean well, this makes it easier to later diagnose drilling problems.

P.U. Wt.: Pick Up Weight is the surface weight measurement when pulling a pipe string out of the hole, moving up. Includes both string weight and frictional drag. Used for torque and drag models to assess hole problems.

S.O. Wt.: Slack-Off Weight is the weight reading when the pipe is entering the well, moving down. Compared to the pick-up weight to estimate the friction. Used for torque and drag models to assess hole problems.

Hrs. on Jars: Jars consisted of two interlocking links of pipe which can telescope. Drilling Jars are durable enough to withstand the harsh environment of drilling operations, but manufactures have recommended change out intervals depending on the size of the jar and the operating conditions, bottomhole temperatures, straight or deviated hole, fishing time. There are two primary types, hydraulic (controlled hydraulic passages) and mechanical (series of springs, lock, and release). The two designs are quite different but their operation is similar, energy is stored in the jar and can be suddenly released when fired. Jars can be designed to strike up, down, or both. Jars are used when the BHA is in a tight spot or stuck in the wellbore and a jarring or hammering action is needed to work it free. In the case of striking up above a stuck BHA the upper link can be lifted and when it reaches its firing point the lower link is suddenly engaged.

Torque: Torque is the result of friction caused when rotating the drill string in the wellbore measure in foot-pounds, Kilogram-meters, joules, etc. This can be described as the force required to keep the drill string rotating. When drilling horizontal and extended reach wells torque may become a problem. Too much torque on the BHA can damage components and can twist, buckle or break pipe.

Survey Section Also known as deviation or directional survey; A completed measurement of the wellbore’s departure from the vertical, typically at the total depth at time of measurement. Survey measurements are taken at regular intervals in order to determine the present downhole location. The measurement and position of the well must be known with as much accuracy as possible to ensure the correct wellbore path. The measurements taken include Inclination and Azimuth, which are then used to calculate other data points typically included in a survey report (which we have defined below). Measurement tools can range from simple devices attached to the drill string that measure the angle of the hole and are pulled out to visually inspect, to sophisticated tools such as MWD (Measurement while drilling) that use electronic devices to continuously take survey measurements while drilling. Other Resources:

Schlumberger Oilfield Glossary

Wikipedia Article

Fields found on the Daily Drilling Report

MD: (Measured Depth)- The total distance measured along the well path from the survey measurement to the surface reference point

TVD: (True Vertical Depth) - The vertical distance from which the survey measurement is taken to a point at the surface

Inclination – the deviation from vertical expressed in degrees

Azimuth: An angular measurement expressed in degrees, typically measured clockwise from north

N/S: The coordinates of the target North/South of the reference point

E/W: The coordinates of the target East/West of the reference point

Vertical Section: The horizontal distance or departure of a wellbore projected to a vertical plane of specific azimuth

DLS: (Dog Leg Severity) - A normalized estimation of the overall curvature of the well path between two directional surveys

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Time Breakdown Section The Time breakdown portion is a detailed account of operations during the previous 24 hours. Operations teams use

this section to monitor activity at the wellsite and coordinate equipment and personnel needed on site to assist in the

drilling process.

Fields found on the Daily Drilling Report

Code: Operators will define a set of “activity codes” before they start a drilling program that can be used to

uniformly identify the activity performed during a period of time. This allows engineers to analyze performance

on a well by reviewing where the majority of time was spent during drilling operations. The IADC has a standard

activity code list that most operators use with little variation. However, activity code lists are completely at the

operator’s discretion.

Operations Comments: This is where the rig supervisor or company man is summarizing the well site activities

and metrics during the specified time period. This section of the report is heavily laden with industry short-hand

and acronyms such as:

o MIRT: Move In Rotary Tool (the drilling rig and equipment)

o TD: Total Depth of well, also seen as RTD (rotary total depth) and LTD (log total depth)

WOC: Waiting on cement

o TOOH: Trip Out of Hole or POOH – Pulled Out of Hole (removing the drill from the wellbore)

o DST: Drill Stem Test ( a procedure to test for the presence of hydrocarbons in the well)

o LCM: Lost Circulation Material

Note: The short-hand and acronyms used here can vary from one crew to the next.

Conclusion Daily Drilling Reports are a vital part of any drilling operations team. Accurate and timely dissemination of the data

contained on a DDR keeps operations on track and on budget. Here at WellEz, we help independent operators by

ensuring quality data is collected from the field, organized, and distributed to all parties and stakeholders. If you’d like

to learn more about our service, please visit us at www.wellez.com.

Additional Resources Schlumberger Oilfield Glossary

IADC Drilling Lexicon & FAQ

OSHA Oil and Gas eTool

WellEz Featured Articles

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